microsoft
/
WSL2-Linux-Kernel
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Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6 

* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: (62 commits)
  [XFS] add __init/__exit mark to specific init/cleanup functions
  [XFS] Fix oops in xfs_file_readdir()
  [XFS] kill xfs_root
  [XFS] keep i_nlink updated and use proper accessors
  [XFS] stop updating inode->i_blocks
  [XFS] Make xfs_ail_check check less by default
  [XFS] Move AIL pushing into it's own thread
  [XFS] use generic_permission
  [XFS] stop re-checking permissions in xfs_swapext
  [XFS] clean up xfs_swapext
  [XFS] remove permission check from xfs_change_file_space
  [XFS] prevent panic during log recovery due to bogus op_hdr length
  [XFS] Cleanup various fid related bits:
  [XFS] Fix xfs_lowbit64
  [XFS] Remove CFORK macros and use code directly in IFORK and DFORK macros.
  [XFS] kill superflous buffer locking (2nd attempt)
  [XFS] Use kernel-supplied "roundup_pow_of_two" for simplicity
  [XFS] Remove the BPCSHIFT and NB* based macros from XFS.
  [XFS] Remove bogus assert
  [XFS] optimize XFS_IS_REALTIME_INODE w/o realtime config
  ...
This commit is contained in:
Linus Torvalds 2008-02-07 19:12:12 -08:00
Родитель a13ff0bb3f de2eeea609
Коммит 0b61a2ba5d
85 изменённых файлов: 2298 добавлений и 3179 удалений
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1
fs/xfs/Makefile-linux-2.6
Просмотреть файл

@ -70,7 +70,6 @@ xfs-y += xfs_alloc.o \
xfs_iget.o \
xfs_inode.o \
xfs_inode_item.o \
xfs_iocore.o \
xfs_iomap.o \
xfs_itable.o \
xfs_dfrag.o \

45
fs/xfs/linux-2.6/spin.h
Просмотреть файл

@ -1,45 +0,0 @@
/*
* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __XFS_SUPPORT_SPIN_H__
#define __XFS_SUPPORT_SPIN_H__
#include <linux/sched.h> /* preempt needs this */
#include <linux/spinlock.h>
/*
* Map lock_t from IRIX to Linux spinlocks.
*
* We do not make use of lock_t from interrupt context, so we do not
* have to worry about disabling interrupts at all (unlike IRIX).
*/
typedef spinlock_t lock_t;
#define SPLDECL(s) unsigned long s
#ifndef DEFINE_SPINLOCK
#define DEFINE_SPINLOCK(s) spinlock_t s = SPIN_LOCK_UNLOCKED
#endif
#define spinlock_init(lock, name) spin_lock_init(lock)
#define spinlock_destroy(lock)
#define mutex_spinlock(lock) ({ spin_lock(lock); 0; })
#define mutex_spinunlock(lock, s) do { spin_unlock(lock); (void)s; } while (0)
#define nested_spinlock(lock) spin_lock(lock)
#define nested_spinunlock(lock) spin_unlock(lock)
#endif /* __XFS_SUPPORT_SPIN_H__ */

43
fs/xfs/linux-2.6/xfs_aops.c
Просмотреть файл

@ -107,6 +107,18 @@ xfs_page_trace(
#define xfs_page_trace(tag, inode, page, pgoff)
#endif
STATIC struct block_device *
xfs_find_bdev_for_inode(
struct xfs_inode *ip)
{
struct xfs_mount *mp = ip->i_mount;
if (XFS_IS_REALTIME_INODE(ip))
return mp->m_rtdev_targp->bt_bdev;
else
return mp->m_ddev_targp->bt_bdev;
}
/*
* Schedule IO completion handling on a xfsdatad if this was
* the final hold on this ioend. If we are asked to wait,
@ -151,7 +163,7 @@ xfs_destroy_ioend(
/*
* Update on-disk file size now that data has been written to disk.
* The current in-memory file size is i_size. If a write is beyond
* eof io_new_size will be the intended file size until i_size is
* eof i_new_size will be the intended file size until i_size is
* updated. If this write does not extend all the way to the valid
* file size then restrict this update to the end of the write.
*/
@ -173,7 +185,7 @@ xfs_setfilesize(
xfs_ilock(ip, XFS_ILOCK_EXCL);
isize = MAX(ip->i_size, ip->i_iocore.io_new_size);
isize = MAX(ip->i_size, ip->i_new_size);
isize = MIN(isize, bsize);
if (ip->i_d.di_size < isize) {
@ -226,12 +238,13 @@ xfs_end_bio_unwritten(
{
xfs_ioend_t *ioend =
container_of(work, xfs_ioend_t, io_work);
struct xfs_inode *ip = XFS_I(ioend->io_inode);
xfs_off_t offset = ioend->io_offset;
size_t size = ioend->io_size;
if (likely(!ioend->io_error)) {
xfs_bmap(XFS_I(ioend->io_inode), offset, size,
BMAPI_UNWRITTEN, NULL, NULL);
if (!XFS_FORCED_SHUTDOWN(ip->i_mount))
xfs_iomap_write_unwritten(ip, offset, size);
xfs_setfilesize(ioend);
}
xfs_destroy_ioend(ioend);
@ -304,7 +317,7 @@ xfs_map_blocks(
xfs_inode_t *ip = XFS_I(inode);
int error, nmaps = 1;
error = xfs_bmap(ip, offset, count,
error = xfs_iomap(ip, offset, count,
flags, mapp, &nmaps);
if (!error && (flags & (BMAPI_WRITE|BMAPI_ALLOCATE)))
xfs_iflags_set(ip, XFS_IMODIFIED);
@ -1323,7 +1336,7 @@ __xfs_get_blocks(
offset = (xfs_off_t)iblock << inode->i_blkbits;
ASSERT(bh_result->b_size >= (1 << inode->i_blkbits));
size = bh_result->b_size;
error = xfs_bmap(XFS_I(inode), offset, size,
error = xfs_iomap(XFS_I(inode), offset, size,
create ? flags : BMAPI_READ, &iomap, &niomap);
if (error)
return -error;
@ -1471,28 +1484,21 @@ xfs_vm_direct_IO(
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
xfs_iomap_t iomap;
int maps = 1;
int error;
struct block_device *bdev;
ssize_t ret;
error = xfs_bmap(XFS_I(inode), offset, 0,
BMAPI_DEVICE, &iomap, &maps);
if (error)
return -error;
bdev = xfs_find_bdev_for_inode(XFS_I(inode));
if (rw == WRITE) {
iocb->private = xfs_alloc_ioend(inode, IOMAP_UNWRITTEN);
ret = blockdev_direct_IO_own_locking(rw, iocb, inode,
iomap.iomap_target->bt_bdev,
iov, offset, nr_segs,
bdev, iov, offset, nr_segs,
xfs_get_blocks_direct,
xfs_end_io_direct);
} else {
iocb->private = xfs_alloc_ioend(inode, IOMAP_READ);
ret = blockdev_direct_IO_no_locking(rw, iocb, inode,
iomap.iomap_target->bt_bdev,
iov, offset, nr_segs,
bdev, iov, offset, nr_segs,
xfs_get_blocks_direct,
xfs_end_io_direct);
}
@ -1525,8 +1531,7 @@ xfs_vm_bmap(
struct inode *inode = (struct inode *)mapping->host;
struct xfs_inode *ip = XFS_I(inode);
vn_trace_entry(XFS_I(inode), __FUNCTION__,
(inst_t *)__return_address);
xfs_itrace_entry(XFS_I(inode));
xfs_rwlock(ip, VRWLOCK_READ);
xfs_flush_pages(ip, (xfs_off_t)0, -1, 0, FI_REMAPF);
xfs_rwunlock(ip, VRWLOCK_READ);

57
fs/xfs/linux-2.6/xfs_buf.c
Просмотреть файл

@ -387,8 +387,6 @@ _xfs_buf_lookup_pages(
if (unlikely(page == NULL)) {
if (flags & XBF_READ_AHEAD) {
bp->b_page_count = i;
for (i = 0; i < bp->b_page_count; i++)
unlock_page(bp->b_pages[i]);
return -ENOMEM;
}
@ -418,24 +416,17 @@ _xfs_buf_lookup_pages(
ASSERT(!PagePrivate(page));
if (!PageUptodate(page)) {
page_count--;
if (blocksize >= PAGE_CACHE_SIZE) {
if (flags & XBF_READ)
bp->b_locked = 1;
} else if (!PagePrivate(page)) {
if (blocksize < PAGE_CACHE_SIZE && !PagePrivate(page)) {
if (test_page_region(page, offset, nbytes))
page_count++;
}
}
unlock_page(page);
bp->b_pages[i] = page;
offset = 0;
}
if (!bp->b_locked) {
for (i = 0; i < bp->b_page_count; i++)
unlock_page(bp->b_pages[i]);
}
if (page_count == bp->b_page_count)
bp->b_flags |= XBF_DONE;
@ -751,7 +742,6 @@ xfs_buf_associate_memory(
bp->b_pages[i] = mem_to_page((void *)pageaddr);
pageaddr += PAGE_CACHE_SIZE;
}
bp->b_locked = 0;
bp->b_count_desired = len;
bp->b_buffer_length = buflen;
@ -1098,26 +1088,14 @@ xfs_buf_iostart(
return status;
}
STATIC_INLINE int
_xfs_buf_iolocked(
xfs_buf_t *bp)
{
ASSERT(bp->b_flags & (XBF_READ | XBF_WRITE));
if (bp->b_flags & XBF_READ)
return bp->b_locked;
return 0;
}
STATIC_INLINE void
_xfs_buf_ioend(
xfs_buf_t *bp,
int schedule)
{
if (atomic_dec_and_test(&bp->b_io_remaining) == 1) {
bp->b_locked = 0;
if (atomic_dec_and_test(&bp->b_io_remaining) == 1)
xfs_buf_ioend(bp, schedule);
}
}
STATIC void
xfs_buf_bio_end_io(
@ -1147,10 +1125,6 @@ xfs_buf_bio_end_io(
if (--bvec >= bio->bi_io_vec)
prefetchw(&bvec->bv_page->flags);
if (_xfs_buf_iolocked(bp)) {
unlock_page(page);
}
} while (bvec >= bio->bi_io_vec);
_xfs_buf_ioend(bp, 1);
@ -1161,13 +1135,12 @@ STATIC void
_xfs_buf_ioapply(
xfs_buf_t *bp)
{
int i, rw, map_i, total_nr_pages, nr_pages;
int rw, map_i, total_nr_pages, nr_pages;
struct bio *bio;
int offset = bp->b_offset;
int size = bp->b_count_desired;
sector_t sector = bp->b_bn;
unsigned int blocksize = bp->b_target->bt_bsize;
int locking = _xfs_buf_iolocked(bp);
total_nr_pages = bp->b_page_count;
map_i = 0;
@ -1190,7 +1163,7 @@ _xfs_buf_ioapply(
* filesystem block size is not smaller than the page size.
*/
if ((bp->b_buffer_length < PAGE_CACHE_SIZE) &&
(bp->b_flags & XBF_READ) && locking &&
(bp->b_flags & XBF_READ) &&
(blocksize >= PAGE_CACHE_SIZE)) {
bio = bio_alloc(GFP_NOIO, 1);
@ -1207,24 +1180,6 @@ _xfs_buf_ioapply(
goto submit_io;
}
/* Lock down the pages which we need to for the request */
if (locking && (bp->b_flags & XBF_WRITE) && (bp->b_locked == 0)) {
for (i = 0; size; i++) {
int nbytes = PAGE_CACHE_SIZE - offset;
struct page *page = bp->b_pages[i];
if (nbytes > size)
nbytes = size;
lock_page(page);
size -= nbytes;
offset = 0;
}
offset = bp->b_offset;
size = bp->b_count_desired;
}
next_chunk:
atomic_inc(&bp->b_io_remaining);
nr_pages = BIO_MAX_SECTORS >> (PAGE_SHIFT - BBSHIFT);
@ -1571,7 +1526,7 @@ xfs_alloc_delwrite_queue(
INIT_LIST_HEAD(&btp->bt_list);
INIT_LIST_HEAD(&btp->bt_delwrite_queue);
spinlock_init(&btp->bt_delwrite_lock, "delwri_lock");
spin_lock_init(&btp->bt_delwrite_lock);
btp->bt_flags = 0;
btp->bt_task = kthread_run(xfsbufd, btp, "xfsbufd");
if (IS_ERR(btp->bt_task)) {

1
fs/xfs/linux-2.6/xfs_buf.h
Просмотреть файл

@ -143,7 +143,6 @@ typedef struct xfs_buf {
void *b_fspriv2;
void *b_fspriv3;
unsigned short b_error; /* error code on I/O */
unsigned short b_locked; /* page array is locked */
unsigned int b_page_count; /* size of page array */
unsigned int b_offset; /* page offset in first page */
struct page **b_pages; /* array of page pointers */

25
fs/xfs/linux-2.6/xfs_export.c
Просмотреть файл

@ -118,20 +118,29 @@ xfs_nfs_get_inode(
u64 ino,
u32 generation)
{
xfs_fid_t xfid;
bhv_vnode_t *vp;
xfs_mount_t *mp = XFS_M(sb);
xfs_inode_t *ip;
int error;
xfid.fid_len = sizeof(xfs_fid_t) - sizeof(xfid.fid_len);
xfid.fid_pad = 0;
xfid.fid_ino = ino;
xfid.fid_gen = generation;
/*
* NFS can sometimes send requests for ino 0. Fail them gracefully.
*/
if (ino == 0)
return ERR_PTR(-ESTALE);
error = xfs_vget(XFS_M(sb), &vp, &xfid);
error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
if (error)
return ERR_PTR(-error);
if (!ip)
return ERR_PTR(-EIO);
return vp ? vn_to_inode(vp) : NULL;
if (!ip->i_d.di_mode || ip->i_d.di_gen != generation) {
xfs_iput_new(ip, XFS_ILOCK_SHARED);
return ERR_PTR(-ENOENT);
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return ip->i_vnode;
}
STATIC struct dentry *

3
fs/xfs/linux-2.6/xfs_file.c
Просмотреть файл

@ -350,8 +350,8 @@ xfs_file_readdir(
size = buf.used;
de = (struct hack_dirent *)buf.dirent;
curr_offset = de->offset /* & 0x7fffffff */;
while (size > 0) {
curr_offset = de->offset /* & 0x7fffffff */;
if (filldir(dirent, de->name, de->namlen,
curr_offset & 0x7fffffff,
de->ino, de->d_type)) {
@ -362,7 +362,6 @@ xfs_file_readdir(
sizeof(u64));
size -= reclen;
de = (struct hack_dirent *)((char *)de + reclen);
curr_offset = de->offset /* & 0x7fffffff */;
}
}

3
fs/xfs/linux-2.6/xfs_globals.c
Просмотреть файл

@ -47,5 +47,6 @@ xfs_param_t xfs_params = {
/*
* Global system credential structure.
*/
cred_t sys_cred_val, *sys_cred = &sys_cred_val;
static cred_t sys_cred_val;
cred_t *sys_cred = &sys_cred_val;

86
fs/xfs/linux-2.6/xfs_ioctl.c
Просмотреть файл

@ -75,7 +75,6 @@ xfs_find_handle(
xfs_handle_t handle;
xfs_fsop_handlereq_t hreq;
struct inode *inode;
bhv_vnode_t *vp;
if (copy_from_user(&hreq, arg, sizeof(hreq)))
return -XFS_ERROR(EFAULT);
@ -134,21 +133,16 @@ xfs_find_handle(
return -XFS_ERROR(EBADF);
}
/* we need the vnode */
vp = vn_from_inode(inode);
/* now we can grab the fsid */
memcpy(&handle.ha_fsid, XFS_I(inode)->i_mount->m_fixedfsid,
sizeof(xfs_fsid_t));
hsize = sizeof(xfs_fsid_t);
if (cmd != XFS_IOC_PATH_TO_FSHANDLE) {
xfs_inode_t *ip;
xfs_inode_t *ip = XFS_I(inode);
int lock_mode;
/* need to get access to the xfs_inode to read the generation */
ip = xfs_vtoi(vp);
ASSERT(ip);
lock_mode = xfs_ilock_map_shared(ip);
/* fill in fid section of handle from inode */
@ -176,21 +170,19 @@ xfs_find_handle(
/*
* Convert userspace handle data into vnode (and inode).
* We [ab]use the fact that all the fsop_handlereq ioctl calls
* have a data structure argument whose first component is always
* a xfs_fsop_handlereq_t, so we can cast to and from this type.
* This allows us to optimise the copy_from_user calls and gives
* a handy, shared routine.
* Convert userspace handle data into inode.
*
* If no error, caller must always VN_RELE the returned vp.
* We use the fact that all the fsop_handlereq ioctl calls have a data
* structure argument whose first component is always a xfs_fsop_handlereq_t,
* so we can pass that sub structure into this handy, shared routine.
*
* If no error, caller must always iput the returned inode.
*/
STATIC int
xfs_vget_fsop_handlereq(
xfs_mount_t *mp,
struct inode *parinode, /* parent inode pointer */
xfs_fsop_handlereq_t *hreq,
bhv_vnode_t **vp,
struct inode **inode)
{
void __user *hanp;
@ -199,8 +191,6 @@ xfs_vget_fsop_handlereq(
xfs_handle_t *handlep;
xfs_handle_t handle;
xfs_inode_t *ip;
struct inode *inodep;
bhv_vnode_t *vpp;
xfs_ino_t ino;
__u32 igen;
int error;
@ -241,7 +231,7 @@ xfs_vget_fsop_handlereq(
}
/*
* Get the XFS inode, building a vnode to go with it.
* Get the XFS inode, building a Linux inode to go with it.
*/
error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
if (error)
@ -253,12 +243,9 @@ xfs_vget_fsop_handlereq(
return XFS_ERROR(ENOENT);
}
vpp = XFS_ITOV(ip);
inodep = vn_to_inode(vpp);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
*vp = vpp;
*inode = inodep;
*inode = XFS_ITOV(ip);
return 0;
}
@ -275,7 +262,6 @@ xfs_open_by_handle(
struct file *filp;
struct inode *inode;
struct dentry *dentry;
bhv_vnode_t *vp;
xfs_fsop_handlereq_t hreq;
if (!capable(CAP_SYS_ADMIN))
@ -283,7 +269,7 @@ xfs_open_by_handle(
if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t)))
return -XFS_ERROR(EFAULT);
error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &vp, &inode);
error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &inode);
if (error)
return -error;
@ -385,7 +371,6 @@ xfs_readlink_by_handle(
{
struct inode *inode;
xfs_fsop_handlereq_t hreq;
bhv_vnode_t *vp;
__u32 olen;
void *link;
int error;
@ -395,7 +380,7 @@ xfs_readlink_by_handle(
if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t)))
return -XFS_ERROR(EFAULT);
error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &vp, &inode);
error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &inode);
if (error)
return -error;
@ -438,34 +423,32 @@ xfs_fssetdm_by_handle(
struct fsdmidata fsd;
xfs_fsop_setdm_handlereq_t dmhreq;
struct inode *inode;
bhv_vnode_t *vp;
if (!capable(CAP_MKNOD))
return -XFS_ERROR(EPERM);
if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t)))
return -XFS_ERROR(EFAULT);
error = xfs_vget_fsop_handlereq(mp, parinode, &dmhreq.hreq, &vp, &inode);
error = xfs_vget_fsop_handlereq(mp, parinode, &dmhreq.hreq, &inode);
if (error)
return -error;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
VN_RELE(vp);
return -XFS_ERROR(EPERM);
error = -XFS_ERROR(EPERM);
goto out;
}
if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) {
VN_RELE(vp);
return -XFS_ERROR(EFAULT);
error = -XFS_ERROR(EFAULT);
goto out;
}
error = xfs_set_dmattrs(xfs_vtoi(vp),
fsd.fsd_dmevmask, fsd.fsd_dmstate);
error = -xfs_set_dmattrs(XFS_I(inode), fsd.fsd_dmevmask,
fsd.fsd_dmstate);
VN_RELE(vp);
if (error)
return -error;
return 0;
out:
iput(inode);
return error;
}
STATIC int
@ -478,7 +461,6 @@ xfs_attrlist_by_handle(
attrlist_cursor_kern_t *cursor;
xfs_fsop_attrlist_handlereq_t al_hreq;
struct inode *inode;
bhv_vnode_t *vp;
char *kbuf;
if (!capable(CAP_SYS_ADMIN))
@ -488,8 +470,7 @@ xfs_attrlist_by_handle(
if (al_hreq.buflen > XATTR_LIST_MAX)
return -XFS_ERROR(EINVAL);
error = xfs_vget_fsop_handlereq(mp, parinode, &al_hreq.hreq,
&vp, &inode);
error = xfs_vget_fsop_handlereq(mp, parinode, &al_hreq.hreq, &inode);
if (error)
goto out;
@ -509,7 +490,7 @@ xfs_attrlist_by_handle(
out_kfree:
kfree(kbuf);
out_vn_rele:
VN_RELE(vp);
iput(inode);
out:
return -error;
}
@ -531,7 +512,7 @@ xfs_attrmulti_attr_get(
if (!kbuf)
return ENOMEM;
error = xfs_attr_get(XFS_I(inode), name, kbuf, len, flags, NULL);
error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags, NULL);
if (error)
goto out_kfree;
@ -598,7 +579,6 @@ xfs_attrmulti_by_handle(
xfs_attr_multiop_t *ops;
xfs_fsop_attrmulti_handlereq_t am_hreq;
struct inode *inode;
bhv_vnode_t *vp;
unsigned int i, size;
char *attr_name;
@ -607,7 +587,7 @@ xfs_attrmulti_by_handle(
if (copy_from_user(&am_hreq, arg, sizeof(xfs_fsop_attrmulti_handlereq_t)))
return -XFS_ERROR(EFAULT);
error = xfs_vget_fsop_handlereq(mp, parinode, &am_hreq.hreq, &vp, &inode);
error = xfs_vget_fsop_handlereq(mp, parinode, &am_hreq.hreq, &inode);
if (error)
goto out;
@ -666,7 +646,7 @@ xfs_attrmulti_by_handle(
out_kfree_ops:
kfree(ops);
out_vn_rele:
VN_RELE(vp);
iput(inode);
out:
return -error;
}
@ -702,7 +682,6 @@ xfs_ioc_fsgeometry(
STATIC int
xfs_ioc_xattr(
bhv_vnode_t *vp,
xfs_inode_t *ip,
struct file *filp,
unsigned int cmd,
@ -735,12 +714,10 @@ xfs_ioctl(
void __user *arg)
{
struct inode *inode = filp->f_path.dentry->d_inode;
bhv_vnode_t *vp = vn_from_inode(inode);
xfs_mount_t *mp = ip->i_mount;
int error;
vn_trace_entry(XFS_I(inode), "xfs_ioctl", (inst_t *)__return_address);
xfs_itrace_entry(XFS_I(inode));
switch (cmd) {
case XFS_IOC_ALLOCSP:
@ -764,7 +741,7 @@ xfs_ioctl(
case XFS_IOC_DIOINFO: {
struct dioattr da;
xfs_buftarg_t *target =
(ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
@ -796,7 +773,7 @@ xfs_ioctl(
case XFS_IOC_GETXFLAGS:
case XFS_IOC_SETXFLAGS:
case XFS_IOC_FSSETXATTR:
return xfs_ioc_xattr(vp, ip, filp, cmd, arg);
return xfs_ioc_xattr(ip, filp, cmd, arg);
case XFS_IOC_FSSETDM: {
struct fsdmidata dmi;
@ -1203,7 +1180,6 @@ xfs_ioc_fsgetxattr(
STATIC int
xfs_ioc_xattr(
bhv_vnode_t *vp,
xfs_inode_t *ip,
struct file *filp,
unsigned int cmd,
@ -1237,7 +1213,7 @@ xfs_ioc_xattr(
error = xfs_setattr(ip, vattr, attr_flags, NULL);
if (likely(!error))
__vn_revalidate(vp, vattr); /* update flags */
vn_revalidate(XFS_ITOV(ip)); /* update flags */
error = -error;
break;
}
@ -1272,7 +1248,7 @@ xfs_ioc_xattr(
error = xfs_setattr(ip, vattr, attr_flags, NULL);
if (likely(!error))
__vn_revalidate(vp, vattr); /* update flags */
vn_revalidate(XFS_ITOV(ip)); /* update flags */
error = -error;
break;
}

9
fs/xfs/linux-2.6/xfs_ioctl32.c
Просмотреть файл

@ -44,6 +44,7 @@
#include "xfs_error.h"
#include "xfs_dfrag.h"
#include "xfs_vnodeops.h"
#include "xfs_ioctl32.h"
#define _NATIVE_IOC(cmd, type) \
_IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
@ -379,9 +380,6 @@ xfs_compat_ioctl(
switch (cmd) {
case XFS_IOC_DIOINFO:
case XFS_IOC_FSGEOMETRY:
case XFS_IOC_GETVERSION:
case XFS_IOC_GETXFLAGS:
case XFS_IOC_SETXFLAGS:
case XFS_IOC_FSGETXATTR:
case XFS_IOC_FSSETXATTR:
case XFS_IOC_FSGETXATTRA:
@ -407,6 +405,11 @@ xfs_compat_ioctl(
case XFS_IOC_ERROR_CLEARALL:
break;
case XFS_IOC32_GETXFLAGS:
case XFS_IOC32_SETXFLAGS:
case XFS_IOC32_GETVERSION:
cmd = _NATIVE_IOC(cmd, long);
break;
#ifdef BROKEN_X86_ALIGNMENT
/* xfs_flock_t has wrong u32 vs u64 alignment */
case XFS_IOC_ALLOCSP_32:

154
fs/xfs/linux-2.6/xfs_iops.c
Просмотреть файл

@ -52,6 +52,7 @@
#include <linux/xattr.h>
#include <linux/namei.h>
#include <linux/security.h>
#include <linux/falloc.h>
/*
* Bring the atime in the XFS inode uptodate.
@ -70,6 +71,22 @@ xfs_synchronize_atime(
}
}
/*
* If the linux inode exists, mark it dirty.
* Used when commiting a dirty inode into a transaction so that
* the inode will get written back by the linux code
*/
void
xfs_mark_inode_dirty_sync(
xfs_inode_t *ip)
{
bhv_vnode_t *vp;
vp = XFS_ITOV_NULL(ip);
if (vp)
mark_inode_dirty_sync(vn_to_inode(vp));
}
/*
* Change the requested timestamp in the given inode.
* We don't lock across timestamp updates, and we don't log them but
@ -184,10 +201,6 @@ xfs_validate_fields(
struct xfs_inode *ip = XFS_I(inode);
loff_t size;
inode->i_nlink = ip->i_d.di_nlink;
inode->i_blocks =
XFS_FSB_TO_BB(ip->i_mount, ip->i_d.di_nblocks +
ip->i_delayed_blks);
/* we're under i_sem so i_size can't change under us */
size = XFS_ISIZE(ip);
if (i_size_read(inode) != size)
@ -541,13 +554,32 @@ xfs_vn_put_link(
}
#ifdef CONFIG_XFS_POSIX_ACL
STATIC int
xfs_check_acl(
struct inode *inode,
int mask)
{
struct xfs_inode *ip = XFS_I(inode);
int error;
xfs_itrace_entry(ip);
if (XFS_IFORK_Q(ip)) {
error = xfs_acl_iaccess(ip, mask, NULL);
if (error != -1)
return -error;
}
return -EAGAIN;
}
STATIC int
xfs_vn_permission(
struct inode *inode,
int mode,
int mask,
struct nameidata *nd)
{
return -xfs_access(XFS_I(inode), mode << 6, NULL);
return generic_permission(inode, mask, xfs_check_acl);
}
#else
#define xfs_vn_permission NULL
@ -560,28 +592,56 @@ xfs_vn_getattr(
struct kstat *stat)
{
struct inode *inode = dentry->d_inode;
bhv_vattr_t vattr = { .va_mask = XFS_AT_STAT };
int error;
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
error = xfs_getattr(XFS_I(inode), &vattr, ATTR_LAZY);
if (likely(!error)) {
stat->size = i_size_read(inode);
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
stat->size = XFS_ISIZE(ip);
stat->dev = inode->i_sb->s_dev;
stat->rdev = (vattr.va_rdev == 0) ? 0 :
MKDEV(sysv_major(vattr.va_rdev) & 0x1ff,
sysv_minor(vattr.va_rdev));
stat->mode = vattr.va_mode;
stat->nlink = vattr.va_nlink;
stat->uid = vattr.va_uid;
stat->gid = vattr.va_gid;
stat->ino = vattr.va_nodeid;
stat->atime = vattr.va_atime;
stat->mtime = vattr.va_mtime;
stat->ctime = vattr.va_ctime;
stat->blocks = vattr.va_nblocks;
stat->blksize = vattr.va_blocksize;
stat->mode = ip->i_d.di_mode;
stat->nlink = ip->i_d.di_nlink;
stat->uid = ip->i_d.di_uid;
stat->gid = ip->i_d.di_gid;
stat->ino = ip->i_ino;
#if XFS_BIG_INUMS
stat->ino += mp->m_inoadd;
#endif
stat->atime = inode->i_atime;
stat->mtime.tv_sec = ip->i_d.di_mtime.t_sec;
stat->mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
stat->ctime.tv_sec = ip->i_d.di_ctime.t_sec;
stat->ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
stat->blocks =
XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
switch (inode->i_mode & S_IFMT) {
case S_IFBLK:
case S_IFCHR:
stat->blksize = BLKDEV_IOSIZE;
stat->rdev = MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
sysv_minor(ip->i_df.if_u2.if_rdev));
break;
default:
if (XFS_IS_REALTIME_INODE(ip)) {
/*
* If the file blocks are being allocated from a
* realtime volume, then return the inode's realtime
* extent size or the realtime volume's extent size.
*/
stat->blksize =
xfs_get_extsz_hint(ip) << mp->m_sb.sb_blocklog;
} else
stat->blksize = xfs_preferred_iosize(mp);
stat->rdev = 0;
break;
}
return -error;
return 0;
}
STATIC int
@ -636,7 +696,7 @@ xfs_vn_setattr(
error = xfs_setattr(XFS_I(inode), &vattr, flags, NULL);
if (likely(!error))
__vn_revalidate(vn_from_inode(inode), &vattr);
vn_revalidate(vn_from_inode(inode));
return -error;
}
@ -750,6 +810,47 @@ xfs_vn_removexattr(
return namesp->attr_remove(vp, attr, xflags);
}
STATIC long
xfs_vn_fallocate(
struct inode *inode,
int mode,
loff_t offset,
loff_t len)
{
long error;
loff_t new_size = 0;
xfs_flock64_t bf;
xfs_inode_t *ip = XFS_I(inode);
/* preallocation on directories not yet supported */
error = -ENODEV;
if (S_ISDIR(inode->i_mode))
goto out_error;
bf.l_whence = 0;
bf.l_start = offset;
bf.l_len = len;
xfs_ilock(ip, XFS_IOLOCK_EXCL);
error = xfs_change_file_space(ip, XFS_IOC_RESVSP, &bf,
0, NULL, ATTR_NOLOCK);
if (!error && !(mode & FALLOC_FL_KEEP_SIZE) &&
offset + len > i_size_read(inode))
new_size = offset + len;
/* Change file size if needed */
if (new_size) {
bhv_vattr_t va;
va.va_mask = XFS_AT_SIZE;
va.va_size = new_size;
error = xfs_setattr(ip, &va, ATTR_NOLOCK, NULL);
}
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
out_error:
return error;
}
const struct inode_operations xfs_inode_operations = {
.permission = xfs_vn_permission,
@ -760,6 +861,7 @@ const struct inode_operations xfs_inode_operations = {
.getxattr = xfs_vn_getxattr,
.listxattr = xfs_vn_listxattr,
.removexattr = xfs_vn_removexattr,
.fallocate = xfs_vn_fallocate,
};
const struct inode_operations xfs_dir_inode_operations = {

34
fs/xfs/linux-2.6/xfs_linux.h
Просмотреть файл

@ -43,7 +43,6 @@
#include <kmem.h>
#include <mrlock.h>
#include <spin.h>
#include <sv.h>
#include <mutex.h>
#include <sema.h>
@ -75,6 +74,7 @@
#include <linux/notifier.h>
#include <linux/delay.h>
#include <linux/log2.h>
#include <linux/spinlock.h>
#include <asm/page.h>
#include <asm/div64.h>
@ -136,43 +136,19 @@
#define current_restore_flags_nested(sp, f) \
(current->flags = ((current->flags & ~(f)) | (*(sp) & (f))))
#define NBPP PAGE_SIZE
#define NDPP (1 << (PAGE_SHIFT - 9))
#define spinlock_destroy(lock)
#define NBBY 8 /* number of bits per byte */
#define NBPC PAGE_SIZE /* Number of bytes per click */
#define BPCSHIFT PAGE_SHIFT /* LOG2(NBPC) if exact */
/*
* Size of block device i/o is parameterized here.
* Currently the system supports page-sized i/o.
*/
#define BLKDEV_IOSHIFT BPCSHIFT
#define BLKDEV_IOSHIFT PAGE_CACHE_SHIFT
#define BLKDEV_IOSIZE (1<<BLKDEV_IOSHIFT)
/* number of BB's per block device block */
#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE)
/* bytes to clicks */
#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT)
#define btoc64(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
#define btoct64(x) ((__uint64_t)(x)>>BPCSHIFT)
/* off_t bytes to clicks */
#define offtoc(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
#define offtoct(x) ((xfs_off_t)(x)>>BPCSHIFT)
/* clicks to off_t bytes */
#define ctooff(x) ((xfs_off_t)(x)<<BPCSHIFT)
/* clicks to bytes */
#define ctob(x) ((__psunsigned_t)(x)<<BPCSHIFT)
#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT)
#define ctob64(x) ((__uint64_t)(x)<<BPCSHIFT)
/* bytes to clicks */
#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
#define ENOATTR ENODATA /* Attribute not found */
#define EWRONGFS EINVAL /* Mount with wrong filesystem type */
#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
@ -205,10 +181,6 @@
#define xfs_stack_trace() dump_stack()
#define xfs_itruncate_data(ip, off) \
(-vmtruncate(vn_to_inode(XFS_ITOV(ip)), (off)))
#define xfs_statvfs_fsid(statp, mp) \
({ u64 id = huge_encode_dev((mp)->m_ddev_targp->bt_dev); \
__kernel_fsid_t *fsid = &(statp)->f_fsid; \
(fsid->val[0] = (u32)id, fsid->val[1] = (u32)(id >> 32)); })
/* Move the kernel do_div definition off to one side */

120
fs/xfs/linux-2.6/xfs_lrw.c
Просмотреть файл

@ -58,14 +58,12 @@
void
xfs_rw_enter_trace(
int tag,
xfs_iocore_t *io,
xfs_inode_t *ip,
void *data,
size_t segs,
loff_t offset,
int ioflags)
{
xfs_inode_t *ip = XFS_IO_INODE(io);
if (ip->i_rwtrace == NULL)
return;
ktrace_enter(ip->i_rwtrace,
@ -78,8 +76,8 @@ xfs_rw_enter_trace(
(void *)((unsigned long)((offset >> 32) & 0xffffffff)),
(void *)((unsigned long)(offset & 0xffffffff)),
(void *)((unsigned long)ioflags),
(void *)((unsigned long)((io->io_new_size >> 32) & 0xffffffff)),
(void *)((unsigned long)(io->io_new_size & 0xffffffff)),
(void *)((unsigned long)((ip->i_new_size >> 32) & 0xffffffff)),
(void *)((unsigned long)(ip->i_new_size & 0xffffffff)),
(void *)((unsigned long)current_pid()),
(void *)NULL,
(void *)NULL,
@ -89,13 +87,12 @@ xfs_rw_enter_trace(
void
xfs_inval_cached_trace(
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_off_t offset,
xfs_off_t len,
xfs_off_t first,
xfs_off_t last)
{
xfs_inode_t *ip = XFS_IO_INODE(io);
if (ip->i_rwtrace == NULL)
return;
@ -131,7 +128,7 @@ xfs_inval_cached_trace(
*/
STATIC int
xfs_iozero(
struct inode *ip, /* inode */
struct xfs_inode *ip, /* inode */
loff_t pos, /* offset in file */
size_t count) /* size of data to zero */
{
@ -139,7 +136,7 @@ xfs_iozero(
struct address_space *mapping;
int status;
mapping = ip->i_mapping;
mapping = ip->i_vnode->i_mapping;
do {
unsigned offset, bytes;
void *fsdata;
@ -205,7 +202,7 @@ xfs_read(
if (unlikely(ioflags & IO_ISDIRECT)) {
xfs_buftarg_t *target =
(ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
if ((*offset & target->bt_smask) ||
(size & target->bt_smask)) {
@ -246,8 +243,7 @@ xfs_read(
if (unlikely(ioflags & IO_ISDIRECT)) {
if (VN_CACHED(vp))
ret = xfs_flushinval_pages(ip,
ctooff(offtoct(*offset)),
ret = xfs_flushinval_pages(ip, (*offset & PAGE_CACHE_MASK),
-1, FI_REMAPF_LOCKED);
mutex_unlock(&inode->i_mutex);
if (ret) {
@ -256,7 +252,7 @@ xfs_read(
}
}
xfs_rw_enter_trace(XFS_READ_ENTER, &ip->i_iocore,
xfs_rw_enter_trace(XFS_READ_ENTER, ip,
(void *)iovp, segs, *offset, ioflags);
iocb->ki_pos = *offset;
@ -301,7 +297,7 @@ xfs_splice_read(
return -error;
}
}
xfs_rw_enter_trace(XFS_SPLICE_READ_ENTER, &ip->i_iocore,
xfs_rw_enter_trace(XFS_SPLICE_READ_ENTER, ip,
pipe, count, *ppos, ioflags);
ret = generic_file_splice_read(infilp, ppos, pipe, count, flags);
if (ret > 0)
@ -323,7 +319,6 @@ xfs_splice_write(
{
bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
xfs_iocore_t *io = &ip->i_iocore;
ssize_t ret;
struct inode *inode = outfilp->f_mapping->host;
xfs_fsize_t isize, new_size;
@ -350,10 +345,10 @@ xfs_splice_write(
xfs_ilock(ip, XFS_ILOCK_EXCL);
if (new_size > ip->i_size)
io->io_new_size = new_size;
ip->i_new_size = new_size;
xfs_iunlock(ip, XFS_ILOCK_EXCL);
xfs_rw_enter_trace(XFS_SPLICE_WRITE_ENTER, &ip->i_iocore,
xfs_rw_enter_trace(XFS_SPLICE_WRITE_ENTER, ip,
pipe, count, *ppos, ioflags);
ret = generic_file_splice_write(pipe, outfilp, ppos, count, flags);
if (ret > 0)
@ -370,9 +365,9 @@ xfs_splice_write(
xfs_iunlock(ip, XFS_ILOCK_EXCL);
}
if (io->io_new_size) {
if (ip->i_new_size) {
xfs_ilock(ip, XFS_ILOCK_EXCL);
io->io_new_size = 0;
ip->i_new_size = 0;
if (ip->i_d.di_size > ip->i_size)
ip->i_d.di_size = ip->i_size;
xfs_iunlock(ip, XFS_ILOCK_EXCL);
@ -389,20 +384,19 @@ xfs_splice_write(
*/
STATIC int /* error (positive) */
xfs_zero_last_block(
struct inode *ip,
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_fsize_t offset,
xfs_fsize_t isize)
{
xfs_fileoff_t last_fsb;
xfs_mount_t *mp = io->io_mount;
xfs_mount_t *mp = ip->i_mount;
int nimaps;
int zero_offset;
int zero_len;
int error = 0;
xfs_bmbt_irec_t imap;
ASSERT(ismrlocked(io->io_lock, MR_UPDATE) != 0);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
zero_offset = XFS_B_FSB_OFFSET(mp, isize);
if (zero_offset == 0) {
@ -415,7 +409,7 @@ xfs_zero_last_block(
last_fsb = XFS_B_TO_FSBT(mp, isize);
nimaps = 1;
error = XFS_BMAPI(mp, NULL, io, last_fsb, 1, 0, NULL, 0, &imap,
error = xfs_bmapi(NULL, ip, last_fsb, 1, 0, NULL, 0, &imap,
&nimaps, NULL, NULL);
if (error) {
return error;
@ -433,14 +427,14 @@ xfs_zero_last_block(
* out sync. We need to drop the ilock while we do this so we
* don't deadlock when the buffer cache calls back to us.
*/
XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
xfs_iunlock(ip, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
zero_len = mp->m_sb.sb_blocksize - zero_offset;
if (isize + zero_len > offset)
zero_len = offset - isize;
error = xfs_iozero(ip, isize, zero_len);
XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
ASSERT(error >= 0);
return error;
}
@ -458,35 +452,33 @@ xfs_zero_last_block(
int /* error (positive) */
xfs_zero_eof(
bhv_vnode_t *vp,
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_off_t offset, /* starting I/O offset */
xfs_fsize_t isize) /* current inode size */
{
struct inode *ip = vn_to_inode(vp);
xfs_mount_t *mp = ip->i_mount;
xfs_fileoff_t start_zero_fsb;
xfs_fileoff_t end_zero_fsb;
xfs_fileoff_t zero_count_fsb;
xfs_fileoff_t last_fsb;
xfs_fileoff_t zero_off;
xfs_fsize_t zero_len;
xfs_mount_t *mp = io->io_mount;
int nimaps;
int error = 0;
xfs_bmbt_irec_t imap;
ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
ASSERT(offset > isize);
/*
* First handle zeroing the block on which isize resides.
* We only zero a part of that block so it is handled specially.
*/
error = xfs_zero_last_block(ip, io, offset, isize);
error = xfs_zero_last_block(ip, offset, isize);
if (error) {
ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
return error;
}
@ -514,11 +506,11 @@ xfs_zero_eof(
while (start_zero_fsb <= end_zero_fsb) {
nimaps = 1;
zero_count_fsb = end_zero_fsb - start_zero_fsb + 1;
error = XFS_BMAPI(mp, NULL, io, start_zero_fsb, zero_count_fsb,
error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb,
0, NULL, 0, &imap, &nimaps, NULL, NULL);
if (error) {
ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
return error;
}
ASSERT(nimaps > 0);
@ -542,7 +534,7 @@ xfs_zero_eof(
* Drop the inode lock while we're doing the I/O.
* We'll still have the iolock to protect us.
*/
XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_iunlock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
zero_off = XFS_FSB_TO_B(mp, start_zero_fsb);
zero_len = XFS_FSB_TO_B(mp, imap.br_blockcount);
@ -558,14 +550,13 @@ xfs_zero_eof(
start_zero_fsb = imap.br_startoff + imap.br_blockcount;
ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
}
return 0;
out_lock:
XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
ASSERT(error >= 0);
return error;
}
@ -587,7 +578,6 @@ xfs_write(
xfs_mount_t *mp;
ssize_t ret = 0, error = 0;
xfs_fsize_t isize, new_size;
xfs_iocore_t *io;
int iolock;
int eventsent = 0;
bhv_vrwlock_t locktype;
@ -607,8 +597,7 @@ xfs_write(
if (count == 0)
return 0;
io = &xip->i_iocore;
mp = io->io_mount;
mp = xip->i_mount;
xfs_wait_for_freeze(mp, SB_FREEZE_WRITE);
@ -667,7 +656,7 @@ start:
if (ioflags & IO_ISDIRECT) {
xfs_buftarg_t *target =
(xip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
XFS_IS_REALTIME_INODE(xip) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
if ((pos & target->bt_smask) || (count & target->bt_smask)) {
@ -688,7 +677,7 @@ start:
new_size = pos + count;
if (new_size > xip->i_size)
io->io_new_size = new_size;
xip->i_new_size = new_size;
if (likely(!(ioflags & IO_INVIS))) {
file_update_time(file);
@ -706,7 +695,7 @@ start:
*/
if (pos > xip->i_size) {
error = xfs_zero_eof(vp, io, pos, xip->i_size);
error = xfs_zero_eof(xip, pos, xip->i_size);
if (error) {
xfs_iunlock(xip, XFS_ILOCK_EXCL);
goto out_unlock_internal;
@ -740,10 +729,10 @@ retry:
if ((ioflags & IO_ISDIRECT)) {
if (VN_CACHED(vp)) {
WARN_ON(need_i_mutex == 0);
xfs_inval_cached_trace(io, pos, -1,
ctooff(offtoct(pos)), -1);
xfs_inval_cached_trace(xip, pos, -1,
(pos & PAGE_CACHE_MASK), -1);
error = xfs_flushinval_pages(xip,
ctooff(offtoct(pos)),
(pos & PAGE_CACHE_MASK),
-1, FI_REMAPF_LOCKED);
if (error)
goto out_unlock_internal;
@ -751,7 +740,7 @@ retry:
if (need_i_mutex) {
/* demote the lock now the cached pages are gone */
XFS_ILOCK_DEMOTE(mp, io, XFS_IOLOCK_EXCL);
xfs_ilock_demote(xip, XFS_IOLOCK_EXCL);
mutex_unlock(&inode->i_mutex);
iolock = XFS_IOLOCK_SHARED;
@ -759,7 +748,7 @@ retry:
need_i_mutex = 0;
}
xfs_rw_enter_trace(XFS_DIOWR_ENTER, io, (void *)iovp, segs,
xfs_rw_enter_trace(XFS_DIOWR_ENTER, xip, (void *)iovp, segs,
*offset, ioflags);
ret = generic_file_direct_write(iocb, iovp,
&segs, pos, offset, count, ocount);
@ -779,7 +768,7 @@ retry:
goto relock;
}
} else {
xfs_rw_enter_trace(XFS_WRITE_ENTER, io, (void *)iovp, segs,
xfs_rw_enter_trace(XFS_WRITE_ENTER, xip, (void *)iovp, segs,
*offset, ioflags);
ret = generic_file_buffered_write(iocb, iovp, segs,
pos, offset, count, ret);
@ -843,9 +832,9 @@ retry:
}
out_unlock_internal:
if (io->io_new_size) {
if (xip->i_new_size) {
xfs_ilock(xip, XFS_ILOCK_EXCL);
io->io_new_size = 0;
xip->i_new_size = 0;
/*
* If this was a direct or synchronous I/O that failed (such
* as ENOSPC) then part of the I/O may have been written to
@ -894,25 +883,6 @@ xfs_bdstrat_cb(struct xfs_buf *bp)
}
}
int
xfs_bmap(
xfs_inode_t *ip,
xfs_off_t offset,
ssize_t count,
int flags,
xfs_iomap_t *iomapp,
int *niomaps)
{
xfs_iocore_t *io = &ip->i_iocore;
ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG);
ASSERT(((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) != 0) ==
((ip->i_iocore.io_flags & XFS_IOCORE_RT) != 0));
return xfs_iomap(io, offset, count, flags, iomapp, niomaps);
}
/*
* Wrapper around bdstrat so that we can stop data
* from going to disk in case we are shutting down the filesystem.

12
fs/xfs/linux-2.6/xfs_lrw.h
Просмотреть файл

@ -19,7 +19,6 @@
#define __XFS_LRW_H__
struct xfs_mount;
struct xfs_iocore;
struct xfs_inode;
struct xfs_bmbt_irec;
struct xfs_buf;
@ -60,20 +59,19 @@ struct xfs_iomap;
#define XFS_IOMAP_UNWRITTEN 27
#define XFS_SPLICE_READ_ENTER 28
#define XFS_SPLICE_WRITE_ENTER 29
extern void xfs_rw_enter_trace(int, struct xfs_iocore *,
extern void xfs_rw_enter_trace(int, struct xfs_inode *,
void *, size_t, loff_t, int);
extern void xfs_inval_cached_trace(struct xfs_iocore *,
extern void xfs_inval_cached_trace(struct xfs_inode *,
xfs_off_t, xfs_off_t, xfs_off_t, xfs_off_t);
#else
#define xfs_rw_enter_trace(tag, io, data, size, offset, ioflags)
#define xfs_inval_cached_trace(io, offset, len, first, last)
#define xfs_rw_enter_trace(tag, ip, data, size, offset, ioflags)
#define xfs_inval_cached_trace(ip, offset, len, first, last)
#endif
extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
extern int xfs_bdstrat_cb(struct xfs_buf *);
extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
extern int xfs_zero_eof(struct inode *, struct xfs_iocore *, xfs_off_t,
xfs_fsize_t);
extern int xfs_zero_eof(struct xfs_inode *, xfs_off_t, xfs_fsize_t);
#endif /* __XFS_LRW_H__ */

572
fs/xfs/linux-2.6/xfs_super.c
Просмотреть файл

@ -41,6 +41,7 @@
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_itable.h"
#include "xfs_fsops.h"
#include "xfs_rw.h"
#include "xfs_acl.h"
#include "xfs_attr.h"
@ -49,6 +50,8 @@
#include "xfs_vnodeops.h"
#include "xfs_vfsops.h"
#include "xfs_version.h"
#include "xfs_log_priv.h"
#include "xfs_trans_priv.h"
#include <linux/namei.h>
#include <linux/init.h>
@ -87,6 +90,435 @@ xfs_args_allocate(
return args;
}
#define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */
#define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */
#define MNTOPT_LOGDEV "logdev" /* log device */
#define MNTOPT_RTDEV "rtdev" /* realtime I/O device */
#define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */
#define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */
#define MNTOPT_INO64 "ino64" /* force inodes into 64-bit range */
#define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */
#define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */
#define MNTOPT_SUNIT "sunit" /* data volume stripe unit */
#define MNTOPT_SWIDTH "swidth" /* data volume stripe width */
#define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */
#define MNTOPT_MTPT "mtpt" /* filesystem mount point */
#define MNTOPT_GRPID "grpid" /* group-ID from parent directory */
#define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */
#define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */
#define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */
#define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */
#define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */
#define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and
* unwritten extent conversion */
#define MNTOPT_NOBARRIER "nobarrier" /* .. disable */
#define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */
#define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */
#define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */
#define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */
#define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */
#define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes
* in stat(). */
#define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */
#define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */
#define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */
#define MNTOPT_QUOTA "quota" /* disk quotas (user) */
#define MNTOPT_NOQUOTA "noquota" /* no quotas */
#define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */
#define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */
#define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */
#define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */
#define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */
#define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */
#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
#define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */
#define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */
#define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */
#define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */
STATIC unsigned long
suffix_strtoul(char *s, char **endp, unsigned int base)
{
int last, shift_left_factor = 0;
char *value = s;
last = strlen(value) - 1;
if (value[last] == 'K' || value[last] == 'k') {
shift_left_factor = 10;
value[last] = '\0';
}
if (value[last] == 'M' || value[last] == 'm') {
shift_left_factor = 20;
value[last] = '\0';
}
if (value[last] == 'G' || value[last] == 'g') {
shift_left_factor = 30;
value[last] = '\0';
}
return simple_strtoul((const char *)s, endp, base) << shift_left_factor;
}
STATIC int
xfs_parseargs(
struct xfs_mount *mp,
char *options,
struct xfs_mount_args *args,
int update)
{
char *this_char, *value, *eov;
int dsunit, dswidth, vol_dsunit, vol_dswidth;
int iosize;
int ikeep = 0;
args->flags |= XFSMNT_BARRIER;
args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
if (!options)
goto done;
iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0;
while ((this_char = strsep(&options, ",")) != NULL) {
if (!*this_char)
continue;
if ((value = strchr(this_char, '=')) != NULL)
*value++ = 0;
if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
args->logbufs = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
args->logbufsize = suffix_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
strncpy(args->logname, value, MAXNAMELEN);
} else if (!strcmp(this_char, MNTOPT_MTPT)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
strncpy(args->mtpt, value, MAXNAMELEN);
} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
strncpy(args->rtname, value, MAXNAMELEN);
} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
iosize = simple_strtoul(value, &eov, 10);
args->flags |= XFSMNT_IOSIZE;
args->iosizelog = (uint8_t) iosize;
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
iosize = suffix_strtoul(value, &eov, 10);
args->flags |= XFSMNT_IOSIZE;
args->iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_GRPID) ||
!strcmp(this_char, MNTOPT_BSDGROUPS)) {
mp->m_flags |= XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
!strcmp(this_char, MNTOPT_SYSVGROUPS)) {
mp->m_flags &= ~XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
args->flags |= XFSMNT_WSYNC;
} else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
args->flags |= XFSMNT_OSYNCISOSYNC;
} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
args->flags |= XFSMNT_NORECOVERY;
} else if (!strcmp(this_char, MNTOPT_INO64)) {
args->flags |= XFSMNT_INO64;
#if !XFS_BIG_INUMS
cmn_err(CE_WARN,
"XFS: %s option not allowed on this system",
this_char);
return EINVAL;
#endif
} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
args->flags |= XFSMNT_NOALIGN;
} else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
args->flags |= XFSMNT_SWALLOC;
} else if (!strcmp(this_char, MNTOPT_SUNIT)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
dsunit = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
dswidth = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
args->flags &= ~XFSMNT_32BITINODES;
#if !XFS_BIG_INUMS
cmn_err(CE_WARN,
"XFS: %s option not allowed on this system",
this_char);
return EINVAL;
#endif
} else if (!strcmp(this_char, MNTOPT_NOUUID)) {
args->flags |= XFSMNT_NOUUID;
} else if (!strcmp(this_char, MNTOPT_BARRIER)) {
args->flags |= XFSMNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
args->flags &= ~XFSMNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
ikeep = 1;
args->flags &= ~XFSMNT_IDELETE;
} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
args->flags |= XFSMNT_IDELETE;
} else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_ATTR2)) {
args->flags |= XFSMNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
args->flags &= ~XFSMNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
args->flags2 |= XFSMNT2_FILESTREAMS;
} else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
} else if (!strcmp(this_char, MNTOPT_QUOTA) ||
!strcmp(this_char, MNTOPT_UQUOTA) ||
!strcmp(this_char, MNTOPT_USRQUOTA)) {
args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
!strcmp(this_char, MNTOPT_UQUOTANOENF)) {
args->flags |= XFSMNT_UQUOTA;
args->flags &= ~XFSMNT_UQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
!strcmp(this_char, MNTOPT_PRJQUOTA)) {
args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
args->flags |= XFSMNT_PQUOTA;
args->flags &= ~XFSMNT_PQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
!strcmp(this_char, MNTOPT_GRPQUOTA)) {
args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
args->flags |= XFSMNT_GQUOTA;
args->flags &= ~XFSMNT_GQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_DMAPI)) {
args->flags |= XFSMNT_DMAPI;
} else if (!strcmp(this_char, MNTOPT_XDSM)) {
args->flags |= XFSMNT_DMAPI;
} else if (!strcmp(this_char, MNTOPT_DMI)) {
args->flags |= XFSMNT_DMAPI;
} else if (!strcmp(this_char, "ihashsize")) {
cmn_err(CE_WARN,
"XFS: ihashsize no longer used, option is deprecated.");
} else if (!strcmp(this_char, "osyncisdsync")) {
/* no-op, this is now the default */
cmn_err(CE_WARN,
"XFS: osyncisdsync is now the default, option is deprecated.");
} else if (!strcmp(this_char, "irixsgid")) {
cmn_err(CE_WARN,
"XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
} else {
cmn_err(CE_WARN,
"XFS: unknown mount option [%s].", this_char);
return EINVAL;
}
}
if (args->flags & XFSMNT_NORECOVERY) {
if ((mp->m_flags & XFS_MOUNT_RDONLY) == 0) {
cmn_err(CE_WARN,
"XFS: no-recovery mounts must be read-only.");
return EINVAL;
}
}
if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth options incompatible with the noalign option");
return EINVAL;
}
if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) {
cmn_err(CE_WARN,
"XFS: cannot mount with both project and group quota");
return EINVAL;
}
if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') {
printk("XFS: %s option needs the mount point option as well\n",
MNTOPT_DMAPI);
return EINVAL;
}
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth must be specified together");
return EINVAL;
}
if (dsunit && (dswidth % dsunit != 0)) {
cmn_err(CE_WARN,
"XFS: stripe width (%d) must be a multiple of the stripe unit (%d)",
dswidth, dsunit);
return EINVAL;
}
/*
* Applications using DMI filesystems often expect the
* inode generation number to be monotonically increasing.
* If we delete inode chunks we break this assumption, so
* keep unused inode chunks on disk for DMI filesystems
* until we come up with a better solution.
* Note that if "ikeep" or "noikeep" mount options are
* supplied, then they are honored.
*/
if (!(args->flags & XFSMNT_DMAPI) && !ikeep)
args->flags |= XFSMNT_IDELETE;
if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
if (dsunit) {
args->sunit = dsunit;
args->flags |= XFSMNT_RETERR;
} else {
args->sunit = vol_dsunit;
}
dswidth ? (args->swidth = dswidth) :
(args->swidth = vol_dswidth);
} else {
args->sunit = args->swidth = 0;
}
done:
if (args->flags & XFSMNT_32BITINODES)
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
if (args->flags2)
args->flags |= XFSMNT_FLAGS2;
return 0;
}
struct proc_xfs_info {
int flag;
char *str;
};
STATIC int
xfs_showargs(
struct xfs_mount *mp,
struct seq_file *m)
{
static struct proc_xfs_info xfs_info_set[] = {
/* the few simple ones we can get from the mount struct */
{ XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC },
{ XFS_MOUNT_INO64, "," MNTOPT_INO64 },
{ XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN },
{ XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC },
{ XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID },
{ XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY },
{ XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC },
{ XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 },
{ XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM },
{ XFS_MOUNT_DMAPI, "," MNTOPT_DMAPI },
{ XFS_MOUNT_GRPID, "," MNTOPT_GRPID },
{ 0, NULL }
};
static struct proc_xfs_info xfs_info_unset[] = {
/* the few simple ones we can get from the mount struct */
{ XFS_MOUNT_IDELETE, "," MNTOPT_IKEEP },
{ XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO },
{ XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER },
{ XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE },
{ 0, NULL }
};
struct proc_xfs_info *xfs_infop;
for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) {
if (mp->m_flags & xfs_infop->flag)
seq_puts(m, xfs_infop->str);
}
for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) {
if (!(mp->m_flags & xfs_infop->flag))
seq_puts(m, xfs_infop->str);
}
if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk",
(int)(1 << mp->m_writeio_log) >> 10);
if (mp->m_logbufs > 0)
seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);
if (mp->m_logbsize > 0)
seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10);
if (mp->m_logname)
seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname);
if (mp->m_rtname)
seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname);
if (mp->m_dalign > 0)
seq_printf(m, "," MNTOPT_SUNIT "=%d",
(int)XFS_FSB_TO_BB(mp, mp->m_dalign));
if (mp->m_swidth > 0)
seq_printf(m, "," MNTOPT_SWIDTH "=%d",
(int)XFS_FSB_TO_BB(mp, mp->m_swidth));
if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD))
seq_puts(m, "," MNTOPT_USRQUOTA);
else if (mp->m_qflags & XFS_UQUOTA_ACCT)
seq_puts(m, "," MNTOPT_UQUOTANOENF);
if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))
seq_puts(m, "," MNTOPT_PRJQUOTA);
else if (mp->m_qflags & XFS_PQUOTA_ACCT)
seq_puts(m, "," MNTOPT_PQUOTANOENF);
if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD))
seq_puts(m, "," MNTOPT_GRPQUOTA);
else if (mp->m_qflags & XFS_GQUOTA_ACCT)
seq_puts(m, "," MNTOPT_GQUOTANOENF);
if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
seq_puts(m, "," MNTOPT_NOQUOTA);
return 0;
}
__uint64_t
xfs_max_file_offset(
unsigned int blockshift)
@ -137,7 +569,7 @@ xfs_set_inodeops(
break;
case S_IFLNK:
inode->i_op = &xfs_symlink_inode_operations;
if (inode->i_blocks)
if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE))
inode->i_mapping->a_ops = &xfs_address_space_operations;
break;
default:
@ -174,8 +606,6 @@ xfs_revalidate_inode(
inode->i_generation = ip->i_d.di_gen;
i_size_write(inode, ip->i_d.di_size);
inode->i_blocks =
XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
inode->i_atime.tv_sec = ip->i_d.di_atime.t_sec;
inode->i_atime.tv_nsec = ip->i_d.di_atime.t_nsec;
inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
@ -334,6 +764,64 @@ xfs_blkdev_issue_flush(
blkdev_issue_flush(buftarg->bt_bdev, NULL);
}
/*
* XFS AIL push thread support
*/
void
xfsaild_wakeup(
xfs_mount_t *mp,
xfs_lsn_t threshold_lsn)
{
mp->m_ail.xa_target = threshold_lsn;
wake_up_process(mp->m_ail.xa_task);
}
int
xfsaild(
void *data)
{
xfs_mount_t *mp = (xfs_mount_t *)data;
xfs_lsn_t last_pushed_lsn = 0;
long tout = 0;
while (!kthread_should_stop()) {
if (tout)
schedule_timeout_interruptible(msecs_to_jiffies(tout));
tout = 1000;
/* swsusp */
try_to_freeze();
ASSERT(mp->m_log);
if (XFS_FORCED_SHUTDOWN(mp))
continue;
tout = xfsaild_push(mp, &last_pushed_lsn);
}
return 0;
} /* xfsaild */
int
xfsaild_start(
xfs_mount_t *mp)
{
mp->m_ail.xa_target = 0;
mp->m_ail.xa_task = kthread_run(xfsaild, mp, "xfsaild");
if (IS_ERR(mp->m_ail.xa_task))
return -PTR_ERR(mp->m_ail.xa_task);
return 0;
}
void
xfsaild_stop(
xfs_mount_t *mp)
{
kthread_stop(mp->m_ail.xa_task);
}
STATIC struct inode *
xfs_fs_alloc_inode(
struct super_block *sb)
@ -361,7 +849,7 @@ xfs_fs_inode_init_once(
inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
}
STATIC int
STATIC int __init
xfs_init_zones(void)
{
xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
@ -410,8 +898,7 @@ xfs_fs_write_inode(
{
int error = 0, flags = FLUSH_INODE;
vn_trace_entry(XFS_I(inode), __FUNCTION__,
(inst_t *)__return_address);
xfs_itrace_entry(XFS_I(inode));
if (sync) {
filemap_fdatawait(inode->i_mapping);
flags |= FLUSH_SYNC;
@ -438,8 +925,7 @@ xfs_fs_clear_inode(
* find an inode with di_mode == 0 but without IGET_CREATE set.
*/
if (ip) {
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
XFS_STATS_INC(vn_rele);
XFS_STATS_INC(vn_remove);
XFS_STATS_INC(vn_reclaim);
@ -683,8 +1169,44 @@ xfs_fs_statfs(
struct dentry *dentry,
struct kstatfs *statp)
{
return -xfs_statvfs(XFS_M(dentry->d_sb), statp,
vn_from_inode(dentry->d_inode));
struct xfs_mount *mp = XFS_M(dentry->d_sb);
xfs_sb_t *sbp = &mp->m_sb;
__uint64_t fakeinos, id;
xfs_extlen_t lsize;
statp->f_type = XFS_SB_MAGIC;
statp->f_namelen = MAXNAMELEN - 1;
id = huge_encode_dev(mp->m_ddev_targp->bt_dev);
statp->f_fsid.val[0] = (u32)id;
statp->f_fsid.val[1] = (u32)(id >> 32);
xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
spin_lock(&mp->m_sb_lock);
statp->f_bsize = sbp->sb_blocksize;
lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0;
statp->f_blocks = sbp->sb_dblocks - lsize;
statp->f_bfree = statp->f_bavail =
sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
fakeinos = statp->f_bfree << sbp->sb_inopblog;
#if XFS_BIG_INUMS
fakeinos += mp->m_inoadd;
#endif
statp->f_files =
MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER);
if (mp->m_maxicount)
#if XFS_BIG_INUMS
if (!mp->m_inoadd)
#endif
statp->f_files = min_t(typeof(statp->f_files),
statp->f_files,
mp->m_maxicount);
statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
spin_unlock(&mp->m_sb_lock);
XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp);
return 0;
}
STATIC int
@ -704,11 +1226,19 @@ xfs_fs_remount(
return -error;
}
/*
* Second stage of a freeze. The data is already frozen so we only
* need to take care of themetadata. Once that's done write a dummy
* record to dirty the log in case of a crash while frozen.
*/
STATIC void
xfs_fs_lockfs(
struct super_block *sb)
{
xfs_freeze(XFS_M(sb));
struct xfs_mount *mp = XFS_M(sb);
xfs_attr_quiesce(mp);
xfs_fs_log_dummy(mp);
}
STATIC int
@ -779,7 +1309,6 @@ xfs_fs_fill_super(
struct inode *rootvp;
struct xfs_mount *mp = NULL;
struct xfs_mount_args *args = xfs_args_allocate(sb, silent);
struct kstatfs statvfs;
int error;
mp = xfs_mount_init();
@ -807,21 +1336,19 @@ xfs_fs_fill_super(
if (error)
goto fail_vfsop;
error = xfs_statvfs(mp, &statvfs, NULL);
if (error)
goto fail_unmount;
sb->s_dirt = 1;
sb->s_magic = statvfs.f_type;
sb->s_blocksize = statvfs.f_bsize;
sb->s_blocksize_bits = ffs(statvfs.f_bsize) - 1;
sb->s_magic = XFS_SB_MAGIC;
sb->s_blocksize = mp->m_sb.sb_blocksize;
sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
sb->s_time_gran = 1;
set_posix_acl_flag(sb);
error = xfs_root(mp, &rootvp);
if (error)
rootvp = igrab(mp->m_rootip->i_vnode);
if (!rootvp) {
error = ENOENT;
goto fail_unmount;
}
sb->s_root = d_alloc_root(vn_to_inode(rootvp));
if (!sb->s_root) {
@ -841,8 +1368,7 @@ xfs_fs_fill_super(
goto fail_vnrele;
}
vn_trace_exit(XFS_I(sb->s_root->d_inode), __FUNCTION__,
(inst_t *)__return_address);
xfs_itrace_exit(XFS_I(sb->s_root->d_inode));
kmem_free(args, sizeof(*args));
return 0;

135
fs/xfs/linux-2.6/xfs_vnode.c
Просмотреть файл

@ -40,7 +40,7 @@
#define vptosync(v) (&vsync[((unsigned long)v) % NVSYNC])
static wait_queue_head_t vsync[NVSYNC];
void
void __init
vn_init(void)
{
int i;
@ -82,84 +82,55 @@ vn_ioerror(
xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l);
}
bhv_vnode_t *
vn_initialize(
struct inode *inode)
{
bhv_vnode_t *vp = vn_from_inode(inode);
XFS_STATS_INC(vn_active);
XFS_STATS_INC(vn_alloc);
ASSERT(VN_CACHED(vp) == 0);
return vp;
}
/*
* Revalidate the Linux inode from the vattr.
* Revalidate the Linux inode from the XFS inode.
* Note: i_size _not_ updated; we must hold the inode
* semaphore when doing that - callers responsibility.
*/
void
vn_revalidate_core(
bhv_vnode_t *vp,
bhv_vattr_t *vap)
{
struct inode *inode = vn_to_inode(vp);
inode->i_mode = vap->va_mode;
inode->i_nlink = vap->va_nlink;
inode->i_uid = vap->va_uid;
inode->i_gid = vap->va_gid;
inode->i_blocks = vap->va_nblocks;
inode->i_mtime = vap->va_mtime;
inode->i_ctime = vap->va_ctime;
if (vap->va_xflags & XFS_XFLAG_IMMUTABLE)
inode->i_flags |= S_IMMUTABLE;
else
inode->i_flags &= ~S_IMMUTABLE;
if (vap->va_xflags & XFS_XFLAG_APPEND)
inode->i_flags |= S_APPEND;
else
inode->i_flags &= ~S_APPEND;
if (vap->va_xflags & XFS_XFLAG_SYNC)
inode->i_flags |= S_SYNC;
else
inode->i_flags &= ~S_SYNC;
if (vap->va_xflags & XFS_XFLAG_NOATIME)
inode->i_flags |= S_NOATIME;
else
inode->i_flags &= ~S_NOATIME;
}
/*
* Revalidate the Linux inode from the vnode.
*/
int
__vn_revalidate(
bhv_vnode_t *vp,
bhv_vattr_t *vattr)
{
int error;
vn_trace_entry(xfs_vtoi(vp), __FUNCTION__, (inst_t *)__return_address);
vattr->va_mask = XFS_AT_STAT | XFS_AT_XFLAGS;
error = xfs_getattr(xfs_vtoi(vp), vattr, 0);
if (likely(!error)) {
vn_revalidate_core(vp, vattr);
xfs_iflags_clear(xfs_vtoi(vp), XFS_IMODIFIED);
}
return -error;
}
int
vn_revalidate(
bhv_vnode_t *vp)
{
bhv_vattr_t vattr;
struct inode *inode = vn_to_inode(vp);
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
unsigned long xflags;
return __vn_revalidate(vp, &vattr);
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return -EIO;
xfs_ilock(ip, XFS_ILOCK_SHARED);
inode->i_mode = ip->i_d.di_mode;
inode->i_uid = ip->i_d.di_uid;
inode->i_gid = ip->i_d.di_gid;
inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
xflags = xfs_ip2xflags(ip);
if (xflags & XFS_XFLAG_IMMUTABLE)
inode->i_flags |= S_IMMUTABLE;
else
inode->i_flags &= ~S_IMMUTABLE;
if (xflags & XFS_XFLAG_APPEND)
inode->i_flags |= S_APPEND;
else
inode->i_flags &= ~S_APPEND;
if (xflags & XFS_XFLAG_SYNC)
inode->i_flags |= S_SYNC;
else
inode->i_flags &= ~S_SYNC;
if (xflags & XFS_XFLAG_NOATIME)
inode->i_flags |= S_NOATIME;
else
inode->i_flags &= ~S_NOATIME;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
xfs_iflags_clear(ip, XFS_IMODIFIED);
return 0;
}
/*
@ -179,7 +150,7 @@ vn_hold(
return vp;
}
#ifdef XFS_VNODE_TRACE
#ifdef XFS_INODE_TRACE
/*
* Reference count of Linux inode if present, -1 if the xfs_inode
@ -211,32 +182,32 @@ static inline int xfs_icount(struct xfs_inode *ip)
* Vnode tracing code.
*/
void
vn_trace_entry(xfs_inode_t *ip, const char *func, inst_t *ra)
_xfs_itrace_entry(xfs_inode_t *ip, const char *func, inst_t *ra)
{
KTRACE_ENTER(ip, VNODE_KTRACE_ENTRY, func, 0, ra);
KTRACE_ENTER(ip, INODE_KTRACE_ENTRY, func, 0, ra);
}
void
vn_trace_exit(xfs_inode_t *ip, const char *func, inst_t *ra)
_xfs_itrace_exit(xfs_inode_t *ip, const char *func, inst_t *ra)
{
KTRACE_ENTER(ip, VNODE_KTRACE_EXIT, func, 0, ra);
KTRACE_ENTER(ip, INODE_KTRACE_EXIT, func, 0, ra);
}
void
vn_trace_hold(xfs_inode_t *ip, char *file, int line, inst_t *ra)
xfs_itrace_hold(xfs_inode_t *ip, char *file, int line, inst_t *ra)
{
KTRACE_ENTER(ip, VNODE_KTRACE_HOLD, file, line, ra);
KTRACE_ENTER(ip, INODE_KTRACE_HOLD, file, line, ra);
}
void
vn_trace_ref(xfs_inode_t *ip, char *file, int line, inst_t *ra)
_xfs_itrace_ref(xfs_inode_t *ip, char *file, int line, inst_t *ra)
{
KTRACE_ENTER(ip, VNODE_KTRACE_REF, file, line, ra);
KTRACE_ENTER(ip, INODE_KTRACE_REF, file, line, ra);
}
void
vn_trace_rele(xfs_inode_t *ip, char *file, int line, inst_t *ra)
xfs_itrace_rele(xfs_inode_t *ip, char *file, int line, inst_t *ra)
{
KTRACE_ENTER(ip, VNODE_KTRACE_RELE, file, line, ra);
KTRACE_ENTER(ip, INODE_KTRACE_RELE, file, line, ra);
}
#endif /* XFS_VNODE_TRACE */
#endif /* XFS_INODE_TRACE */

58
fs/xfs/linux-2.6/xfs_vnode.h
Просмотреть файл

@ -187,10 +187,7 @@ typedef struct bhv_vattr {
(VN_ISREG(vp) && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
extern void vn_init(void);
extern bhv_vnode_t *vn_initialize(struct inode *);
extern int vn_revalidate(bhv_vnode_t *);
extern int __vn_revalidate(bhv_vnode_t *, bhv_vattr_t *);
extern void vn_revalidate_core(bhv_vnode_t *, bhv_vattr_t *);
/*
* Yeah, these don't take vnode anymore at all, all this should be
@ -210,12 +207,12 @@ static inline int vn_count(bhv_vnode_t *vp)
*/
extern bhv_vnode_t *vn_hold(bhv_vnode_t *);
#if defined(XFS_VNODE_TRACE)
#if defined(XFS_INODE_TRACE)
#define VN_HOLD(vp) \
((void)vn_hold(vp), \
vn_trace_hold(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address))
xfs_itrace_hold(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address))
#define VN_RELE(vp) \
(vn_trace_rele(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address), \
(xfs_itrace_rele(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address), \
iput(vn_to_inode(vp)))
#else
#define VN_HOLD(vp) ((void)vn_hold(vp))
@ -238,11 +235,6 @@ static inline bhv_vnode_t *vn_grab(bhv_vnode_t *vp)
/*
* Dealing with bad inodes
*/
static inline void vn_mark_bad(bhv_vnode_t *vp)
{
make_bad_inode(vn_to_inode(vp));
}
static inline int VN_BAD(bhv_vnode_t *vp)
{
return is_bad_inode(vn_to_inode(vp));
@ -296,26 +288,36 @@ static inline void vn_atime_to_time_t(bhv_vnode_t *vp, time_t *tt)
/*
* Tracking vnode activity.
*/
#if defined(XFS_VNODE_TRACE)
#if defined(XFS_INODE_TRACE)
#define VNODE_TRACE_SIZE 16 /* number of trace entries */
#define VNODE_KTRACE_ENTRY 1
#define VNODE_KTRACE_EXIT 2
#define VNODE_KTRACE_HOLD 3
#define VNODE_KTRACE_REF 4
#define VNODE_KTRACE_RELE 5
#define INODE_TRACE_SIZE 16 /* number of trace entries */
#define INODE_KTRACE_ENTRY 1
#define INODE_KTRACE_EXIT 2
#define INODE_KTRACE_HOLD 3
#define INODE_KTRACE_REF 4
#define INODE_KTRACE_RELE 5
extern void _xfs_itrace_entry(struct xfs_inode *, const char *, inst_t *);
extern void _xfs_itrace_exit(struct xfs_inode *, const char *, inst_t *);
extern void xfs_itrace_hold(struct xfs_inode *, char *, int, inst_t *);
extern void _xfs_itrace_ref(struct xfs_inode *, char *, int, inst_t *);
extern void xfs_itrace_rele(struct xfs_inode *, char *, int, inst_t *);
#define xfs_itrace_entry(ip) \
_xfs_itrace_entry(ip, __FUNCTION__, (inst_t *)__return_address)
#define xfs_itrace_exit(ip) \
_xfs_itrace_exit(ip, __FUNCTION__, (inst_t *)__return_address)
#define xfs_itrace_exit_tag(ip, tag) \
_xfs_itrace_exit(ip, tag, (inst_t *)__return_address)
#define xfs_itrace_ref(ip) \
_xfs_itrace_ref(ip, __FILE__, __LINE__, (inst_t *)__return_address)
extern void vn_trace_entry(struct xfs_inode *, const char *, inst_t *);
extern void vn_trace_exit(struct xfs_inode *, const char *, inst_t *);
extern void vn_trace_hold(struct xfs_inode *, char *, int, inst_t *);
extern void vn_trace_ref(struct xfs_inode *, char *, int, inst_t *);
extern void vn_trace_rele(struct xfs_inode *, char *, int, inst_t *);
#else
#define vn_trace_entry(a,b,c)
#define vn_trace_exit(a,b,c)
#define vn_trace_hold(a,b,c,d)
#define vn_trace_ref(a,b,c,d)
#define vn_trace_rele(a,b,c,d)
#define xfs_itrace_entry(a)
#define xfs_itrace_exit(a)
#define xfs_itrace_exit_tag(a, b)
#define xfs_itrace_hold(a, b, c, d)
#define xfs_itrace_ref(a)
#define xfs_itrace_rele(a, b, c, d)
#endif
#endif /* __XFS_VNODE_H__ */

12
fs/xfs/quota/xfs_dquot.c
Просмотреть файл

@ -1209,7 +1209,6 @@ xfs_qm_dqflush(
xfs_buf_t *bp;
xfs_disk_dquot_t *ddqp;
int error;
SPLDECL(s);
ASSERT(XFS_DQ_IS_LOCKED(dqp));
ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
@ -1270,9 +1269,9 @@ xfs_qm_dqflush(
mp = dqp->q_mount;
/* lsn is 64 bits */
AIL_LOCK(mp, s);
spin_lock(&mp->m_ail_lock);
dqp->q_logitem.qli_flush_lsn = dqp->q_logitem.qli_item.li_lsn;
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
/*
* Attach an iodone routine so that we can remove this dquot from the
@ -1318,7 +1317,6 @@ xfs_qm_dqflush_done(
xfs_dq_logitem_t *qip)
{
xfs_dquot_t *dqp;
SPLDECL(s);
dqp = qip->qli_dquot;
@ -1333,15 +1331,15 @@ xfs_qm_dqflush_done(
if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
qip->qli_item.li_lsn == qip->qli_flush_lsn) {
AIL_LOCK(dqp->q_mount, s);
spin_lock(&dqp->q_mount->m_ail_lock);
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
if (qip->qli_item.li_lsn == qip->qli_flush_lsn)
xfs_trans_delete_ail(dqp->q_mount,
(xfs_log_item_t*)qip, s);
(xfs_log_item_t*)qip);
else
AIL_UNLOCK(dqp->q_mount, s);
spin_unlock(&dqp->q_mount->m_ail_lock);
}
/*

5
fs/xfs/quota/xfs_dquot.h
Просмотреть файл

@ -123,11 +123,6 @@ XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
vsema(&((dqp)->q_flock)); \
(dqp)->dq_flags &= ~(XFS_DQ_FLOCKED); }
#define XFS_DQ_PINLOCK(dqp) mutex_spinlock( \
&(XFS_DQ_TO_QINF(dqp)->qi_pinlock))
#define XFS_DQ_PINUNLOCK(dqp, s) mutex_spinunlock( \
&(XFS_DQ_TO_QINF(dqp)->qi_pinlock), s)
#define XFS_DQ_IS_FLUSH_LOCKED(dqp) (issemalocked(&((dqp)->q_flock)))
#define XFS_DQ_IS_ON_FREELIST(dqp) ((dqp)->dq_flnext != (dqp))
#define XFS_DQ_IS_DIRTY(dqp) ((dqp)->dq_flags & XFS_DQ_DIRTY)

27
fs/xfs/quota/xfs_dquot_item.c
Просмотреть файл

@ -94,14 +94,13 @@ STATIC void
xfs_qm_dquot_logitem_pin(
xfs_dq_logitem_t *logitem)
{
unsigned long s;
xfs_dquot_t *dqp;
dqp = logitem->qli_dquot;
ASSERT(XFS_DQ_IS_LOCKED(dqp));
s = XFS_DQ_PINLOCK(dqp);
spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
dqp->q_pincount++;
XFS_DQ_PINUNLOCK(dqp, s);
spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
}
/*
@ -115,17 +114,16 @@ xfs_qm_dquot_logitem_unpin(
xfs_dq_logitem_t *logitem,
int stale)
{
unsigned long s;
xfs_dquot_t *dqp;
dqp = logitem->qli_dquot;
ASSERT(dqp->q_pincount > 0);
s = XFS_DQ_PINLOCK(dqp);
spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
dqp->q_pincount--;
if (dqp->q_pincount == 0) {
sv_broadcast(&dqp->q_pinwait);
}
XFS_DQ_PINUNLOCK(dqp, s);
spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
}
/* ARGSUSED */
@ -189,8 +187,6 @@ void
xfs_qm_dqunpin_wait(
xfs_dquot_t *dqp)
{
SPLDECL(s);
ASSERT(XFS_DQ_IS_LOCKED(dqp));
if (dqp->q_pincount == 0) {
return;
@ -200,9 +196,9 @@ xfs_qm_dqunpin_wait(
* Give the log a push so we don't wait here too long.
*/
xfs_log_force(dqp->q_mount, (xfs_lsn_t)0, XFS_LOG_FORCE);
s = XFS_DQ_PINLOCK(dqp);
spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
if (dqp->q_pincount == 0) {
XFS_DQ_PINUNLOCK(dqp, s);
spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
return;
}
sv_wait(&(dqp->q_pinwait), PINOD,
@ -216,8 +212,8 @@ xfs_qm_dqunpin_wait(
* If so, we want to push it out to help us take this item off the AIL as soon
* as possible.
*
* We must not be holding the AIL_LOCK at this point. Calling incore() to
* search the buffer cache can be a time consuming thing, and AIL_LOCK is a
* We must not be holding the AIL lock at this point. Calling incore() to
* search the buffer cache can be a time consuming thing, and AIL lock is a
* spinlock.
*/
STATIC void
@ -322,7 +318,7 @@ xfs_qm_dquot_logitem_trylock(
* want to do that now since we might sleep in the device
* strategy routine. We also don't want to grab the buffer lock
* here because we'd like not to call into the buffer cache
* while holding the AIL_LOCK.
* while holding the AIL lock.
* Make sure to only return PUSHBUF if we set pushbuf_flag
* ourselves. If someone else is doing it then we don't
* want to go to the push routine and duplicate their efforts.
@ -562,15 +558,14 @@ xfs_qm_qoffend_logitem_committed(
xfs_lsn_t lsn)
{
xfs_qoff_logitem_t *qfs;
SPLDECL(s);
qfs = qfe->qql_start_lip;
AIL_LOCK(qfs->qql_item.li_mountp,s);
spin_lock(&qfs->qql_item.li_mountp->m_ail_lock);
/*
* Delete the qoff-start logitem from the AIL.
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs, s);
xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs);
kmem_free(qfs, sizeof(xfs_qoff_logitem_t));
kmem_free(qfe, sizeof(xfs_qoff_logitem_t));
return (xfs_lsn_t)-1;

14
fs/xfs/quota/xfs_qm.c
Просмотреть файл

@ -310,7 +310,6 @@ xfs_qm_mount_quotas(
xfs_mount_t *mp,
int mfsi_flags)
{
unsigned long s;
int error = 0;
uint sbf;
@ -367,13 +366,13 @@ xfs_qm_mount_quotas(
write_changes:
/*
* We actually don't have to acquire the SB_LOCK at all.
* We actually don't have to acquire the m_sb_lock at all.
* This can only be called from mount, and that's single threaded. XXX
*/
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
sbf = mp->m_sb.sb_qflags;
mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) {
if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) {
@ -1139,7 +1138,7 @@ xfs_qm_init_quotainfo(
return error;
}
spinlock_init(&qinf->qi_pinlock, "xfs_qinf_pin");
spin_lock_init(&qinf->qi_pinlock);
xfs_qm_list_init(&qinf->qi_dqlist, "mpdqlist", 0);
qinf->qi_dqreclaims = 0;
@ -1370,7 +1369,6 @@ xfs_qm_qino_alloc(
{
xfs_trans_t *tp;
int error;
unsigned long s;
int committed;
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE);
@ -1402,7 +1400,7 @@ xfs_qm_qino_alloc(
* sbfields arg may contain fields other than *QUOTINO;
* VERSIONNUM for example.
*/
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
if (flags & XFS_QMOPT_SBVERSION) {
#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
unsigned oldv = mp->m_sb.sb_versionnum;
@ -1429,7 +1427,7 @@ xfs_qm_qino_alloc(
mp->m_sb.sb_uquotino = (*ip)->i_ino;
else
mp->m_sb.sb_gquotino = (*ip)->i_ino;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
xfs_mod_sb(tp, sbfields);
if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) {

6
fs/xfs/quota/xfs_qm.h
Просмотреть файл

@ -52,8 +52,8 @@ extern kmem_zone_t *qm_dqtrxzone;
/*
* Dquot hashtable constants/threshold values.
*/
#define XFS_QM_HASHSIZE_LOW (NBPP / sizeof(xfs_dqhash_t))
#define XFS_QM_HASHSIZE_HIGH ((NBPP * 4) / sizeof(xfs_dqhash_t))
#define XFS_QM_HASHSIZE_LOW (PAGE_SIZE / sizeof(xfs_dqhash_t))
#define XFS_QM_HASHSIZE_HIGH ((PAGE_SIZE * 4) / sizeof(xfs_dqhash_t))
/*
* This defines the unit of allocation of dquots.
@ -106,7 +106,7 @@ typedef struct xfs_qm {
typedef struct xfs_quotainfo {
xfs_inode_t *qi_uquotaip; /* user quota inode */
xfs_inode_t *qi_gquotaip; /* group quota inode */
lock_t qi_pinlock; /* dquot pinning mutex */
spinlock_t qi_pinlock; /* dquot pinning lock */
xfs_dqlist_t qi_dqlist; /* all dquots in filesys */
int qi_dqreclaims; /* a change here indicates
a removal in the dqlist */

19
fs/xfs/quota/xfs_qm_syscalls.c
Просмотреть файл

@ -200,7 +200,6 @@ xfs_qm_scall_quotaoff(
boolean_t force)
{
uint dqtype;
unsigned long s;
int error;
uint inactivate_flags;
xfs_qoff_logitem_t *qoffstart;
@ -237,9 +236,9 @@ xfs_qm_scall_quotaoff(
if ((flags & XFS_ALL_QUOTA_ACCT) == 0) {
mp->m_qflags &= ~(flags);
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
mp->m_sb.sb_qflags = mp->m_qflags;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
/* XXX what to do if error ? Revert back to old vals incore ? */
@ -415,7 +414,6 @@ xfs_qm_scall_quotaon(
uint flags)
{
int error;
unsigned long s;
uint qf;
uint accflags;
__int64_t sbflags;
@ -468,10 +466,10 @@ xfs_qm_scall_quotaon(
* Change sb_qflags on disk but not incore mp->qflags
* if this is the root filesystem.
*/
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
qf = mp->m_sb.sb_qflags;
mp->m_sb.sb_qflags = qf | flags;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
/*
* There's nothing to change if it's the same.
@ -815,7 +813,6 @@ xfs_qm_log_quotaoff(
{
xfs_trans_t *tp;
int error;
unsigned long s;
xfs_qoff_logitem_t *qoffi=NULL;
uint oldsbqflag=0;
@ -832,10 +829,10 @@ xfs_qm_log_quotaoff(
qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
xfs_trans_log_quotaoff_item(tp, qoffi);
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
oldsbqflag = mp->m_sb.sb_qflags;
mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
xfs_mod_sb(tp, XFS_SB_QFLAGS);
@ -854,9 +851,9 @@ error0:
* No one else is modifying sb_qflags, so this is OK.
* We still hold the quotaofflock.
*/
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
mp->m_sb.sb_qflags = oldsbqflag;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
}
*qoffstartp = qoffi;
return (error);

7
fs/xfs/support/debug.c
Просмотреть файл

@ -17,7 +17,6 @@
*/
#include <xfs.h>
#include "debug.h"
#include "spin.h"
static char message[1024]; /* keep it off the stack */
static DEFINE_SPINLOCK(xfs_err_lock);
@ -81,3 +80,9 @@ assfail(char *expr, char *file, int line)
printk("Assertion failed: %s, file: %s, line: %d\n", expr, file, line);
BUG();
}
void
xfs_hex_dump(void *p, int length)
{
print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_OFFSET, 16, 1, p, length, 1);
}

8
fs/xfs/support/ktrace.c
Просмотреть файл

@ -21,7 +21,7 @@ static kmem_zone_t *ktrace_hdr_zone;
static kmem_zone_t *ktrace_ent_zone;
static int ktrace_zentries;
void
void __init
ktrace_init(int zentries)
{
ktrace_zentries = zentries;
@ -36,7 +36,7 @@ ktrace_init(int zentries)
ASSERT(ktrace_ent_zone);
}
void
void __exit
ktrace_uninit(void)
{
kmem_zone_destroy(ktrace_hdr_zone);
@ -90,8 +90,6 @@ ktrace_alloc(int nentries, unsigned int __nocast sleep)
return NULL;
}
spinlock_init(&(ktp->kt_lock), "kt_lock");
ktp->kt_entries = ktep;
ktp->kt_nentries = nentries;
ktp->kt_index = 0;
@ -114,8 +112,6 @@ ktrace_free(ktrace_t *ktp)
if (ktp == (ktrace_t *)NULL)
return;
spinlock_destroy(&ktp->kt_lock);
/*
* Special treatment for the Vnode trace buffer.
*/

3
fs/xfs/support/ktrace.h
Просмотреть файл

@ -18,8 +18,6 @@
#ifndef __XFS_SUPPORT_KTRACE_H__
#define __XFS_SUPPORT_KTRACE_H__
#include <spin.h>
/*
* Trace buffer entry structure.
*/
@ -31,7 +29,6 @@ typedef struct ktrace_entry {
* Trace buffer header structure.
*/
typedef struct ktrace {
lock_t kt_lock; /* mutex to guard counters */
int kt_nentries; /* number of entries in trace buf */
int kt_index; /* current index in entries */
int kt_rollover;

2
fs/xfs/support/uuid.c
Просмотреть файл

@ -133,7 +133,7 @@ uuid_table_remove(uuid_t *uuid)
mutex_unlock(&uuid_monitor);
}
void
void __init
uuid_init(void)
{
mutex_init(&uuid_monitor);

2
fs/xfs/xfs.h
Просмотреть файл

@ -37,7 +37,7 @@
#define XFS_LOG_TRACE 1
#define XFS_RW_TRACE 1
#define XFS_BUF_TRACE 1
#define XFS_VNODE_TRACE 1
#define XFS_INODE_TRACE 1
#define XFS_FILESTREAMS_TRACE 1
#endif

30
fs/xfs/xfs_acl.c
Просмотреть файл

@ -391,32 +391,6 @@ xfs_acl_allow_set(
return error;
}
/*
* The access control process to determine the access permission:
* if uid == file owner id, use the file owner bits.
* if gid == file owner group id, use the file group bits.
* scan ACL for a matching user or group, and use matched entry
* permission. Use total permissions of all matching group entries,
* until all acl entries are exhausted. The final permission produced
* by matching acl entry or entries needs to be & with group permission.
* if not owner, owning group, or matching entry in ACL, use file
* other bits.
*/
STATIC int
xfs_acl_capability_check(
mode_t mode,
cred_t *cr)
{
if ((mode & ACL_READ) && !capable_cred(cr, CAP_DAC_READ_SEARCH))
return EACCES;
if ((mode & ACL_WRITE) && !capable_cred(cr, CAP_DAC_OVERRIDE))
return EACCES;
if ((mode & ACL_EXECUTE) && !capable_cred(cr, CAP_DAC_OVERRIDE))
return EACCES;
return 0;
}
/*
* Note: cr is only used here for the capability check if the ACL test fails.
* It is not used to find out the credentials uid or groups etc, as was
@ -438,7 +412,6 @@ xfs_acl_access(
matched.ae_tag = 0; /* Invalid type */
matched.ae_perm = 0;
md >>= 6; /* Normalize the bits for comparison */
for (i = 0; i < fap->acl_cnt; i++) {
/*
@ -520,7 +493,8 @@ xfs_acl_access(
break;
}
return xfs_acl_capability_check(md, cr);
/* EACCES tells generic_permission to check for capability overrides */
return EACCES;
}
/*

2
fs/xfs/xfs_acl.h
Просмотреть файл

@ -75,7 +75,6 @@ extern int xfs_acl_vremove(bhv_vnode_t *, int);
#define _ACL_GET_DEFAULT(pv,pd) (xfs_acl_vtoacl(pv,NULL,pd) == 0)
#define _ACL_ACCESS_EXISTS xfs_acl_vhasacl_access
#define _ACL_DEFAULT_EXISTS xfs_acl_vhasacl_default
#define _ACL_XFS_IACCESS(i,m,c) (XFS_IFORK_Q(i) ? xfs_acl_iaccess(i,m,c) : -1)
#define _ACL_ALLOC(a) ((a) = kmem_zone_alloc(xfs_acl_zone, KM_SLEEP))
#define _ACL_FREE(a) ((a)? kmem_zone_free(xfs_acl_zone, (a)):(void)0)
@ -95,7 +94,6 @@ extern int xfs_acl_vremove(bhv_vnode_t *, int);
#define _ACL_GET_DEFAULT(pv,pd) (0)
#define _ACL_ACCESS_EXISTS (NULL)
#define _ACL_DEFAULT_EXISTS (NULL)
#define _ACL_XFS_IACCESS(i,m,c) (-1)
#endif
#endif /* __XFS_ACL_H__ */

2
fs/xfs/xfs_ag.h
Просмотреть файл

@ -193,7 +193,7 @@ typedef struct xfs_perag
xfs_agino_t pagi_count; /* number of allocated inodes */
int pagb_count; /* pagb slots in use */
#ifdef __KERNEL__
lock_t pagb_lock; /* lock for pagb_list */
spinlock_t pagb_lock; /* lock for pagb_list */
#endif
xfs_perag_busy_t *pagb_list; /* unstable blocks */
atomic_t pagf_fstrms; /* # of filestreams active in this AG */

19
fs/xfs/xfs_alloc.c
Просмотреть файл

@ -2206,7 +2206,7 @@ xfs_alloc_read_agf(
be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNOi]);
pag->pagf_levels[XFS_BTNUM_CNTi] =
be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNTi]);
spinlock_init(&pag->pagb_lock, "xfspagb");
spin_lock_init(&pag->pagb_lock);
pag->pagb_list = kmem_zalloc(XFS_PAGB_NUM_SLOTS *
sizeof(xfs_perag_busy_t), KM_SLEEP);
pag->pagf_init = 1;
@ -2500,10 +2500,9 @@ xfs_alloc_mark_busy(xfs_trans_t *tp,
xfs_mount_t *mp;
xfs_perag_busy_t *bsy;
int n;
SPLDECL(s);
mp = tp->t_mountp;
s = mutex_spinlock(&mp->m_perag[agno].pagb_lock);
spin_lock(&mp->m_perag[agno].pagb_lock);
/* search pagb_list for an open slot */
for (bsy = mp->m_perag[agno].pagb_list, n = 0;
@ -2533,7 +2532,7 @@ xfs_alloc_mark_busy(xfs_trans_t *tp,
xfs_trans_set_sync(tp);
}
mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
spin_unlock(&mp->m_perag[agno].pagb_lock);
}
void
@ -2543,11 +2542,10 @@ xfs_alloc_clear_busy(xfs_trans_t *tp,
{
xfs_mount_t *mp;
xfs_perag_busy_t *list;
SPLDECL(s);
mp = tp->t_mountp;
s = mutex_spinlock(&mp->m_perag[agno].pagb_lock);
spin_lock(&mp->m_perag[agno].pagb_lock);
list = mp->m_perag[agno].pagb_list;
ASSERT(idx < XFS_PAGB_NUM_SLOTS);
@ -2559,7 +2557,7 @@ xfs_alloc_clear_busy(xfs_trans_t *tp,
TRACE_UNBUSY("xfs_alloc_clear_busy", "missing", agno, idx, tp);
}
mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
spin_unlock(&mp->m_perag[agno].pagb_lock);
}
@ -2578,11 +2576,10 @@ xfs_alloc_search_busy(xfs_trans_t *tp,
xfs_agblock_t uend, bend;
xfs_lsn_t lsn;
int cnt;
SPLDECL(s);
mp = tp->t_mountp;
s = mutex_spinlock(&mp->m_perag[agno].pagb_lock);
spin_lock(&mp->m_perag[agno].pagb_lock);
cnt = mp->m_perag[agno].pagb_count;
uend = bno + len - 1;
@ -2615,12 +2612,12 @@ xfs_alloc_search_busy(xfs_trans_t *tp,
if (cnt) {
TRACE_BUSYSEARCH("xfs_alloc_search_busy", "found", agno, bno, len, n, tp);
lsn = bsy->busy_tp->t_commit_lsn;
mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
spin_unlock(&mp->m_perag[agno].pagb_lock);
xfs_log_force(mp, lsn, XFS_LOG_FORCE|XFS_LOG_SYNC);
} else {
TRACE_BUSYSEARCH("xfs_alloc_search_busy", "not-found", agno, bno, len, n, tp);
n = -1;
mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
spin_unlock(&mp->m_perag[agno].pagb_lock);
}
return n;

2
fs/xfs/xfs_attr.c
Просмотреть файл

@ -929,7 +929,7 @@ xfs_attr_shortform_addname(xfs_da_args_t *args)
* This leaf block cannot have a "remote" value, we only call this routine
* if bmap_one_block() says there is only one block (ie: no remote blks).
*/
int
STATIC int
xfs_attr_leaf_addname(xfs_da_args_t *args)
{
xfs_inode_t *dp;

8
fs/xfs/xfs_attr_leaf.c
Просмотреть файл

@ -226,17 +226,15 @@ xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes)
STATIC void
xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp)
{
unsigned long s;
if ((mp->m_flags & XFS_MOUNT_ATTR2) &&
!(XFS_SB_VERSION_HASATTR2(&mp->m_sb))) {
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
if (!XFS_SB_VERSION_HASATTR2(&mp->m_sb)) {
XFS_SB_VERSION_ADDATTR2(&mp->m_sb);
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
xfs_mod_sb(tp, XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
} else
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
}
}

103
fs/xfs/xfs_bit.c
Просмотреть файл

@ -25,109 +25,6 @@
* XFS bit manipulation routines, used in non-realtime code.
*/
#ifndef HAVE_ARCH_HIGHBIT
/*
* Index of high bit number in byte, -1 for none set, 0..7 otherwise.
*/
static const char xfs_highbit[256] = {
-1, 0, 1, 1, 2, 2, 2, 2, /* 00 .. 07 */
3, 3, 3, 3, 3, 3, 3, 3, /* 08 .. 0f */
4, 4, 4, 4, 4, 4, 4, 4, /* 10 .. 17 */
4, 4, 4, 4, 4, 4, 4, 4, /* 18 .. 1f */
5, 5, 5, 5, 5, 5, 5, 5, /* 20 .. 27 */
5, 5, 5, 5, 5, 5, 5, 5, /* 28 .. 2f */
5, 5, 5, 5, 5, 5, 5, 5, /* 30 .. 37 */
5, 5, 5, 5, 5, 5, 5, 5, /* 38 .. 3f */
6, 6, 6, 6, 6, 6, 6, 6, /* 40 .. 47 */
6, 6, 6, 6, 6, 6, 6, 6, /* 48 .. 4f */
6, 6, 6, 6, 6, 6, 6, 6, /* 50 .. 57 */
6, 6, 6, 6, 6, 6, 6, 6, /* 58 .. 5f */
6, 6, 6, 6, 6, 6, 6, 6, /* 60 .. 67 */
6, 6, 6, 6, 6, 6, 6, 6, /* 68 .. 6f */
6, 6, 6, 6, 6, 6, 6, 6, /* 70 .. 77 */
6, 6, 6, 6, 6, 6, 6, 6, /* 78 .. 7f */
7, 7, 7, 7, 7, 7, 7, 7, /* 80 .. 87 */
7, 7, 7, 7, 7, 7, 7, 7, /* 88 .. 8f */
7, 7, 7, 7, 7, 7, 7, 7, /* 90 .. 97 */
7, 7, 7, 7, 7, 7, 7, 7, /* 98 .. 9f */
7, 7, 7, 7, 7, 7, 7, 7, /* a0 .. a7 */
7, 7, 7, 7, 7, 7, 7, 7, /* a8 .. af */
7, 7, 7, 7, 7, 7, 7, 7, /* b0 .. b7 */
7, 7, 7, 7, 7, 7, 7, 7, /* b8 .. bf */
7, 7, 7, 7, 7, 7, 7, 7, /* c0 .. c7 */
7, 7, 7, 7, 7, 7, 7, 7, /* c8 .. cf */
7, 7, 7, 7, 7, 7, 7, 7, /* d0 .. d7 */
7, 7, 7, 7, 7, 7, 7, 7, /* d8 .. df */
7, 7, 7, 7, 7, 7, 7, 7, /* e0 .. e7 */
7, 7, 7, 7, 7, 7, 7, 7, /* e8 .. ef */
7, 7, 7, 7, 7, 7, 7, 7, /* f0 .. f7 */
7, 7, 7, 7, 7, 7, 7, 7, /* f8 .. ff */
};
#endif
/*
* xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set.
*/
inline int
xfs_highbit32(
__uint32_t v)
{
#ifdef HAVE_ARCH_HIGHBIT
return highbit32(v);
#else
int i;
if (v & 0xffff0000)
if (v & 0xff000000)
i = 24;
else
i = 16;
else if (v & 0x0000ffff)
if (v & 0x0000ff00)
i = 8;
else
i = 0;
else
return -1;
return i + xfs_highbit[(v >> i) & 0xff];
#endif
}
/*
* xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set.
*/
int
xfs_lowbit64(
__uint64_t v)
{
__uint32_t w = (__uint32_t)v;
int n = 0;
if (w) { /* lower bits */
n = ffs(w);
} else { /* upper bits */
w = (__uint32_t)(v >> 32);
if (w && (n = ffs(w)))
n += 32;
}
return n - 1;
}
/*
* xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set.
*/
int
xfs_highbit64(
__uint64_t v)
{
__uint32_t h = (__uint32_t)(v >> 32);
if (h)
return xfs_highbit32(h) + 32;
return xfs_highbit32((__uint32_t)v);
}
/*
* Return whether bitmap is empty.
* Size is number of words in the bitmap, which is padded to word boundary

27
fs/xfs/xfs_bit.h
Просмотреть файл

@ -47,13 +47,30 @@ static inline __uint64_t xfs_mask64lo(int n)
}
/* Get high bit set out of 32-bit argument, -1 if none set */
extern int xfs_highbit32(__uint32_t v);
/* Get low bit set out of 64-bit argument, -1 if none set */
extern int xfs_lowbit64(__uint64_t v);
static inline int xfs_highbit32(__uint32_t v)
{
return fls(v) - 1;
}
/* Get high bit set out of 64-bit argument, -1 if none set */
extern int xfs_highbit64(__uint64_t);
static inline int xfs_highbit64(__uint64_t v)
{
return fls64(v) - 1;
}
/* Get low bit set out of 32-bit argument, -1 if none set */
static inline int xfs_lowbit32(__uint32_t v)
{
__uint32_t t = v;
return (t) ? find_first_bit((unsigned long *)&t, 32) : -1;
}
/* Get low bit set out of 64-bit argument, -1 if none set */
static inline int xfs_lowbit64(__uint64_t v)
{
__uint64_t t = v;
return (t) ? find_first_bit((unsigned long *)&t, 64) : -1;
}
/* Return whether bitmap is empty (1 == empty) */
extern int xfs_bitmap_empty(uint *map, uint size);

22
fs/xfs/xfs_bmap.c
Просмотреть файл

@ -2830,11 +2830,11 @@ xfs_bmap_btalloc(
args.prod = align;
if ((args.mod = (xfs_extlen_t)do_mod(ap->off, args.prod)))
args.mod = (xfs_extlen_t)(args.prod - args.mod);
} else if (mp->m_sb.sb_blocksize >= NBPP) {
} else if (mp->m_sb.sb_blocksize >= PAGE_CACHE_SIZE) {
args.prod = 1;
args.mod = 0;
} else {
args.prod = NBPP >> mp->m_sb.sb_blocklog;
args.prod = PAGE_CACHE_SIZE >> mp->m_sb.sb_blocklog;
if ((args.mod = (xfs_extlen_t)(do_mod(ap->off, args.prod))))
args.mod = (xfs_extlen_t)(args.prod - args.mod);
}
@ -2969,7 +2969,7 @@ STATIC int
xfs_bmap_alloc(
xfs_bmalloca_t *ap) /* bmap alloc argument struct */
{
if ((ap->ip->i_d.di_flags & XFS_DIFLAG_REALTIME) && ap->userdata)
if (XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata)
return xfs_bmap_rtalloc(ap);
return xfs_bmap_btalloc(ap);
}
@ -3096,8 +3096,7 @@ xfs_bmap_del_extent(
/*
* Realtime allocation. Free it and record di_nblocks update.
*/
if (whichfork == XFS_DATA_FORK &&
(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
if (whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip)) {
xfs_fsblock_t bno;
xfs_filblks_t len;
@ -3956,7 +3955,6 @@ xfs_bmap_add_attrfork(
xfs_bmap_free_t flist; /* freed extent records */
xfs_mount_t *mp; /* mount structure */
xfs_trans_t *tp; /* transaction pointer */
unsigned long s; /* spinlock spl value */
int blks; /* space reservation */
int version = 1; /* superblock attr version */
int committed; /* xaction was committed */
@ -4053,7 +4051,7 @@ xfs_bmap_add_attrfork(
(!XFS_SB_VERSION_HASATTR2(&mp->m_sb) && version == 2)) {
__int64_t sbfields = 0;
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
if (!XFS_SB_VERSION_HASATTR(&mp->m_sb)) {
XFS_SB_VERSION_ADDATTR(&mp->m_sb);
sbfields |= XFS_SB_VERSIONNUM;
@ -4063,10 +4061,10 @@ xfs_bmap_add_attrfork(
sbfields |= (XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
}
if (sbfields) {
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
xfs_mod_sb(tp, sbfields);
} else
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
}
if ((error = xfs_bmap_finish(&tp, &flist, &committed)))
goto error2;
@ -6394,7 +6392,7 @@ xfs_bmap_count_blocks(
* Recursively walks each level of a btree
* to count total fsblocks is use.
*/
int /* error */
STATIC int /* error */
xfs_bmap_count_tree(
xfs_mount_t *mp, /* file system mount point */
xfs_trans_t *tp, /* transaction pointer */
@ -6470,7 +6468,7 @@ xfs_bmap_count_tree(
/*
* Count leaf blocks given a range of extent records.
*/
int
STATIC int
xfs_bmap_count_leaves(
xfs_ifork_t *ifp,
xfs_extnum_t idx,
@ -6490,7 +6488,7 @@ xfs_bmap_count_leaves(
* Count leaf blocks given a range of extent records originally
* in btree format.
*/
int
STATIC int
xfs_bmap_disk_count_leaves(
xfs_extnum_t idx,
xfs_bmbt_block_t *block,

2
fs/xfs/xfs_bmap.h
Просмотреть файл

@ -25,6 +25,8 @@ struct xfs_inode;
struct xfs_mount;
struct xfs_trans;
extern kmem_zone_t *xfs_bmap_free_item_zone;
/*
* DELTA: describe a change to the in-core extent list.
*

3
fs/xfs/xfs_bmap_btree.c
Просмотреть файл

@ -2062,8 +2062,7 @@ xfs_bmbt_insert(
pcur->bc_private.b.allocated;
pcur->bc_private.b.allocated = 0;
ASSERT((cur->bc_private.b.firstblock != NULLFSBLOCK) ||
(cur->bc_private.b.ip->i_d.di_flags &
XFS_DIFLAG_REALTIME));
XFS_IS_REALTIME_INODE(cur->bc_private.b.ip));
cur->bc_private.b.firstblock =
pcur->bc_private.b.firstblock;
ASSERT(cur->bc_private.b.flist ==

2
fs/xfs/xfs_btree.h
Просмотреть файл

@ -24,6 +24,8 @@ struct xfs_inode;
struct xfs_mount;
struct xfs_trans;
extern kmem_zone_t *xfs_btree_cur_zone;
/*
* This nonsense is to make -wlint happy.
*/

10
fs/xfs/xfs_buf_item.c
Просмотреть файл

@ -378,7 +378,6 @@ xfs_buf_item_unpin(
xfs_mount_t *mp;
xfs_buf_t *bp;
int freed;
SPLDECL(s);
bp = bip->bli_buf;
ASSERT(bp != NULL);
@ -409,8 +408,8 @@ xfs_buf_item_unpin(
XFS_BUF_SET_FSPRIVATE(bp, NULL);
XFS_BUF_CLR_IODONE_FUNC(bp);
} else {
AIL_LOCK(mp,s);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip, s);
spin_lock(&mp->m_ail_lock);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip);
xfs_buf_item_relse(bp);
ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL);
}
@ -1113,7 +1112,6 @@ xfs_buf_iodone(
xfs_buf_log_item_t *bip)
{
struct xfs_mount *mp;
SPLDECL(s);
ASSERT(bip->bli_buf == bp);
@ -1128,11 +1126,11 @@ xfs_buf_iodone(
*
* Either way, AIL is useless if we're forcing a shutdown.
*/
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip, s);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip);
#ifdef XFS_TRANS_DEBUG
kmem_free(bip->bli_orig, XFS_BUF_COUNT(bp));

2
fs/xfs/xfs_buf_item.h
Просмотреть файл

@ -18,6 +18,8 @@
#ifndef __XFS_BUF_ITEM_H__
#define __XFS_BUF_ITEM_H__
extern kmem_zone_t *xfs_buf_item_zone;
/*
* This is the structure used to lay out a buf log item in the
* log. The data map describes which 128 byte chunks of the buffer

13
fs/xfs/xfs_da_btree.c
Просмотреть файл

@ -2218,7 +2218,7 @@ xfs_da_state_free(xfs_da_state_t *state)
#ifdef XFS_DABUF_DEBUG
xfs_dabuf_t *xfs_dabuf_global_list;
lock_t xfs_dabuf_global_lock;
spinlock_t xfs_dabuf_global_lock;
#endif
/*
@ -2264,10 +2264,9 @@ xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra)
}
#ifdef XFS_DABUF_DEBUG
{
SPLDECL(s);
xfs_dabuf_t *p;
s = mutex_spinlock(&xfs_dabuf_global_lock);
spin_lock(&xfs_dabuf_global_lock);
for (p = xfs_dabuf_global_list; p; p = p->next) {
ASSERT(p->blkno != dabuf->blkno ||
p->target != dabuf->target);
@ -2277,7 +2276,7 @@ xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra)
xfs_dabuf_global_list->prev = dabuf;
dabuf->next = xfs_dabuf_global_list;
xfs_dabuf_global_list = dabuf;
mutex_spinunlock(&xfs_dabuf_global_lock, s);
spin_unlock(&xfs_dabuf_global_lock);
}
#endif
return dabuf;
@ -2319,16 +2318,14 @@ xfs_da_buf_done(xfs_dabuf_t *dabuf)
kmem_free(dabuf->data, BBTOB(dabuf->bbcount));
#ifdef XFS_DABUF_DEBUG
{
SPLDECL(s);
s = mutex_spinlock(&xfs_dabuf_global_lock);
spin_lock(&xfs_dabuf_global_lock);
if (dabuf->prev)
dabuf->prev->next = dabuf->next;
else
xfs_dabuf_global_list = dabuf->next;
if (dabuf->next)
dabuf->next->prev = dabuf->prev;
mutex_spinunlock(&xfs_dabuf_global_lock, s);
spin_unlock(&xfs_dabuf_global_lock);
}
memset(dabuf, 0, XFS_DA_BUF_SIZE(dabuf->nbuf));
#endif

1
fs/xfs/xfs_da_btree.h
Просмотреть файл

@ -260,6 +260,7 @@ void xfs_da_binval(struct xfs_trans *tp, xfs_dabuf_t *dabuf);
xfs_daddr_t xfs_da_blkno(xfs_dabuf_t *dabuf);
extern struct kmem_zone *xfs_da_state_zone;
extern struct kmem_zone *xfs_dabuf_zone;
#endif /* __KERNEL__ */
#endif /* __XFS_DA_BTREE_H__ */

76
fs/xfs/xfs_dfrag.c
Просмотреть файл

@ -52,76 +52,72 @@ xfs_swapext(
xfs_swapext_t __user *sxu)
{
xfs_swapext_t *sxp;
xfs_inode_t *ip=NULL, *tip=NULL;
xfs_mount_t *mp;
struct file *fp = NULL, *tfp = NULL;
bhv_vnode_t *vp, *tvp;
xfs_inode_t *ip, *tip;
struct file *file, *target_file;
int error = 0;
sxp = kmem_alloc(sizeof(xfs_swapext_t), KM_MAYFAIL);
if (!sxp) {
error = XFS_ERROR(ENOMEM);
goto error0;
goto out;
}
if (copy_from_user(sxp, sxu, sizeof(xfs_swapext_t))) {
error = XFS_ERROR(EFAULT);
goto error0;
goto out_free_sxp;
}
/* Pull information for the target fd */
if (((fp = fget((int)sxp->sx_fdtarget)) == NULL) ||
((vp = vn_from_inode(fp->f_path.dentry->d_inode)) == NULL)) {
file = fget((int)sxp->sx_fdtarget);
if (!file) {
error = XFS_ERROR(EINVAL);
goto error0;
goto out_free_sxp;
}
ip = xfs_vtoi(vp);
if (ip == NULL) {
if (!(file->f_mode & FMODE_WRITE) || (file->f_flags & O_APPEND)) {
error = XFS_ERROR(EBADF);
goto error0;
goto out_put_file;
}
if (((tfp = fget((int)sxp->sx_fdtmp)) == NULL) ||
((tvp = vn_from_inode(tfp->f_path.dentry->d_inode)) == NULL)) {
target_file = fget((int)sxp->sx_fdtmp);
if (!target_file) {
error = XFS_ERROR(EINVAL);
goto error0;
goto out_put_file;
}
tip = xfs_vtoi(tvp);
if (tip == NULL) {
if (!(target_file->f_mode & FMODE_WRITE) ||
(target_file->f_flags & O_APPEND)) {
error = XFS_ERROR(EBADF);
goto error0;
goto out_put_target_file;
}
ip = XFS_I(file->f_path.dentry->d_inode);
tip = XFS_I(target_file->f_path.dentry->d_inode);
if (ip->i_mount != tip->i_mount) {
error = XFS_ERROR(EINVAL);
goto error0;
goto out_put_target_file;
}
if (ip->i_ino == tip->i_ino) {
error = XFS_ERROR(EINVAL);
goto error0;
goto out_put_target_file;
}
mp = ip->i_mount;
if (XFS_FORCED_SHUTDOWN(mp)) {
if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
error = XFS_ERROR(EIO);
goto error0;
goto out_put_target_file;
}
error = XFS_SWAP_EXTENTS(mp, &ip->i_iocore, &tip->i_iocore, sxp);
error = xfs_swap_extents(ip, tip, sxp);
error0:
if (fp != NULL)
fput(fp);
if (tfp != NULL)
fput(tfp);
if (sxp != NULL)
out_put_target_file:
fput(target_file);
out_put_file:
fput(file);
out_free_sxp:
kmem_free(sxp, sizeof(xfs_swapext_t));
out:
return error;
}
@ -169,15 +165,6 @@ xfs_swap_extents(
xfs_lock_inodes(ips, 2, 0, lock_flags);
locked = 1;
/* Check permissions */
error = xfs_iaccess(ip, S_IWUSR, NULL);
if (error)
goto error0;
error = xfs_iaccess(tip, S_IWUSR, NULL);
if (error)
goto error0;
/* Verify that both files have the same format */
if ((ip->i_d.di_mode & S_IFMT) != (tip->i_d.di_mode & S_IFMT)) {
error = XFS_ERROR(EINVAL);
@ -185,8 +172,7 @@ xfs_swap_extents(
}
/* Verify both files are either real-time or non-realtime */
if ((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) !=
(tip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
if (XFS_IS_REALTIME_INODE(ip) != XFS_IS_REALTIME_INODE(tip)) {
error = XFS_ERROR(EINVAL);
goto error0;
}
@ -199,7 +185,7 @@ xfs_swap_extents(
}
if (VN_CACHED(tvp) != 0) {
xfs_inval_cached_trace(&tip->i_iocore, 0, -1, 0, -1);
xfs_inval_cached_trace(tip, 0, -1, 0, -1);
error = xfs_flushinval_pages(tip, 0, -1,
FI_REMAPF_LOCKED);
if (error)

74
fs/xfs/xfs_dinode.h
Просмотреть файл

@ -171,69 +171,35 @@ typedef enum xfs_dinode_fmt
/*
* Inode data & attribute fork sizes, per inode.
*/
#define XFS_CFORK_Q(dcp) ((dcp)->di_forkoff != 0)
#define XFS_CFORK_Q_DISK(dcp) ((dcp)->di_forkoff != 0)
#define XFS_CFORK_BOFF(dcp) ((int)((dcp)->di_forkoff << 3))
#define XFS_CFORK_BOFF_DISK(dcp) ((int)((dcp)->di_forkoff << 3))
#define XFS_CFORK_DSIZE_DISK(dcp,mp) \
(XFS_CFORK_Q_DISK(dcp) ? XFS_CFORK_BOFF_DISK(dcp) : XFS_LITINO(mp))
#define XFS_CFORK_DSIZE(dcp,mp) \
(XFS_CFORK_Q(dcp) ? XFS_CFORK_BOFF(dcp) : XFS_LITINO(mp))
#define XFS_CFORK_ASIZE_DISK(dcp,mp) \
(XFS_CFORK_Q_DISK(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF_DISK(dcp) : 0)
#define XFS_CFORK_ASIZE(dcp,mp) \
(XFS_CFORK_Q(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF(dcp) : 0)
#define XFS_CFORK_SIZE_DISK(dcp,mp,w) \
((w) == XFS_DATA_FORK ? \
XFS_CFORK_DSIZE_DISK(dcp, mp) : \
XFS_CFORK_ASIZE_DISK(dcp, mp))
#define XFS_CFORK_SIZE(dcp,mp,w) \
((w) == XFS_DATA_FORK ? \
XFS_CFORK_DSIZE(dcp, mp) : XFS_CFORK_ASIZE(dcp, mp))
#define XFS_DFORK_Q(dip) ((dip)->di_core.di_forkoff != 0)
#define XFS_DFORK_BOFF(dip) ((int)((dip)->di_core.di_forkoff << 3))
#define XFS_DFORK_DSIZE(dip,mp) \
XFS_CFORK_DSIZE_DISK(&(dip)->di_core, mp)
#define XFS_DFORK_DSIZE_HOST(dip,mp) \
XFS_CFORK_DSIZE(&(dip)->di_core, mp)
(XFS_DFORK_Q(dip) ? \
XFS_DFORK_BOFF(dip) : \
XFS_LITINO(mp))
#define XFS_DFORK_ASIZE(dip,mp) \
XFS_CFORK_ASIZE_DISK(&(dip)->di_core, mp)
#define XFS_DFORK_ASIZE_HOST(dip,mp) \
XFS_CFORK_ASIZE(&(dip)->di_core, mp)
(XFS_DFORK_Q(dip) ? \
XFS_LITINO(mp) - XFS_DFORK_BOFF(dip) : \
0)
#define XFS_DFORK_SIZE(dip,mp,w) \
XFS_CFORK_SIZE_DISK(&(dip)->di_core, mp, w)
#define XFS_DFORK_SIZE_HOST(dip,mp,w) \
XFS_CFORK_SIZE(&(dip)->di_core, mp, w)
((w) == XFS_DATA_FORK ? \
XFS_DFORK_DSIZE(dip, mp) : \
XFS_DFORK_ASIZE(dip, mp))
#define XFS_DFORK_Q(dip) XFS_CFORK_Q_DISK(&(dip)->di_core)
#define XFS_DFORK_BOFF(dip) XFS_CFORK_BOFF_DISK(&(dip)->di_core)
#define XFS_DFORK_DPTR(dip) ((dip)->di_u.di_c)
#define XFS_DFORK_APTR(dip) \
((dip)->di_u.di_c + XFS_DFORK_BOFF(dip))
#define XFS_DFORK_PTR(dip,w) \
((w) == XFS_DATA_FORK ? XFS_DFORK_DPTR(dip) : XFS_DFORK_APTR(dip))
#define XFS_CFORK_FORMAT(dcp,w) \
((w) == XFS_DATA_FORK ? (dcp)->di_format : (dcp)->di_aformat)
#define XFS_CFORK_FMT_SET(dcp,w,n) \
#define XFS_DFORK_FORMAT(dip,w) \
((w) == XFS_DATA_FORK ? \
((dcp)->di_format = (n)) : ((dcp)->di_aformat = (n)))
#define XFS_DFORK_FORMAT(dip,w) XFS_CFORK_FORMAT(&(dip)->di_core, w)
#define XFS_CFORK_NEXTENTS_DISK(dcp,w) \
(dip)->di_core.di_format : \
(dip)->di_core.di_aformat)
#define XFS_DFORK_NEXTENTS(dip,w) \
((w) == XFS_DATA_FORK ? \
be32_to_cpu((dcp)->di_nextents) : \
be16_to_cpu((dcp)->di_anextents))
#define XFS_CFORK_NEXTENTS(dcp,w) \
((w) == XFS_DATA_FORK ? (dcp)->di_nextents : (dcp)->di_anextents)
#define XFS_DFORK_NEXTENTS(dip,w) XFS_CFORK_NEXTENTS_DISK(&(dip)->di_core, w)
#define XFS_DFORK_NEXTENTS_HOST(dip,w) XFS_CFORK_NEXTENTS(&(dip)->di_core, w)
#define XFS_CFORK_NEXT_SET(dcp,w,n) \
((w) == XFS_DATA_FORK ? \
((dcp)->di_nextents = (n)) : ((dcp)->di_anextents = (n)))
be32_to_cpu((dip)->di_core.di_nextents) : \
be16_to_cpu((dip)->di_core.di_anextents))
#define XFS_BUF_TO_DINODE(bp) ((xfs_dinode_t *)XFS_BUF_PTR(bp))
@ -273,6 +239,12 @@ typedef enum xfs_dinode_fmt
#define XFS_DIFLAG_NODEFRAG (1 << XFS_DIFLAG_NODEFRAG_BIT)
#define XFS_DIFLAG_FILESTREAM (1 << XFS_DIFLAG_FILESTREAM_BIT)
#ifdef CONFIG_XFS_RT
#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
#else
#define XFS_IS_REALTIME_INODE(ip) (0)
#endif
#define XFS_DIFLAG_ANY \
(XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \

3
fs/xfs/xfs_dir2.c
Просмотреть файл

@ -42,6 +42,7 @@
#include "xfs_dir2_node.h"
#include "xfs_dir2_trace.h"
#include "xfs_error.h"
#include "xfs_vnodeops.h"
void
@ -301,7 +302,7 @@ xfs_readdir(
int rval; /* return value */
int v; /* type-checking value */
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return XFS_ERROR(EIO);

31
fs/xfs/xfs_error.c
Просмотреть файл

@ -230,37 +230,6 @@ xfs_error_report(
}
}
STATIC void
xfs_hex_dump(void *p, int length)
{
__uint8_t *uip = (__uint8_t*)p;
int i;
char sbuf[128], *s;
s = sbuf;
*s = '\0';
for (i=0; i<length; i++, uip++) {
if ((i % 16) == 0) {
if (*s != '\0')
cmn_err(CE_ALERT, "%s\n", sbuf);
s = sbuf;
sprintf(s, "0x%x: ", i);
while( *s != '\0')
s++;
}
sprintf(s, "%02x ", *uip);
/*
* the kernel sprintf is a void; user sprintf returns
* the sprintf'ed string's length. Find the new end-
* of-string
*/
while( *s != '\0')
s++;
}
cmn_err(CE_ALERT, "%s\n", sbuf);
}
void
xfs_corruption_error(
char *tag,

2
fs/xfs/xfs_error.h
Просмотреть файл

@ -174,6 +174,8 @@ extern void xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
/* PRINTFLIKE3 */
extern void xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);
extern void xfs_hex_dump(void *p, int length);
#define xfs_fs_repair_cmn_err(level, mp, fmt, args...) \
xfs_fs_cmn_err(level, mp, fmt " Unmount and run xfs_repair.", ## args)

21
fs/xfs/xfs_extfree_item.c
Просмотреть файл

@ -110,19 +110,18 @@ STATIC void
xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
{
xfs_mount_t *mp;
SPLDECL(s);
mp = efip->efi_item.li_mountp;
AIL_LOCK(mp, s);
spin_lock(&mp->m_ail_lock);
if (efip->efi_flags & XFS_EFI_CANCELED) {
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
xfs_efi_item_free(efip);
} else {
efip->efi_flags |= XFS_EFI_COMMITTED;
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
}
@ -138,10 +137,9 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
{
xfs_mount_t *mp;
xfs_log_item_desc_t *lidp;
SPLDECL(s);
mp = efip->efi_item.li_mountp;
AIL_LOCK(mp, s);
spin_lock(&mp->m_ail_lock);
if (efip->efi_flags & XFS_EFI_CANCELED) {
/*
* free the xaction descriptor pointing to this item
@ -152,11 +150,11 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
* pull the item off the AIL.
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
xfs_efi_item_free(efip);
} else {
efip->efi_flags |= XFS_EFI_COMMITTED;
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
}
@ -350,13 +348,12 @@ xfs_efi_release(xfs_efi_log_item_t *efip,
{
xfs_mount_t *mp;
int extents_left;
SPLDECL(s);
mp = efip->efi_item.li_mountp;
ASSERT(efip->efi_next_extent > 0);
ASSERT(efip->efi_flags & XFS_EFI_COMMITTED);
AIL_LOCK(mp, s);
spin_lock(&mp->m_ail_lock);
ASSERT(efip->efi_next_extent >= nextents);
efip->efi_next_extent -= nextents;
extents_left = efip->efi_next_extent;
@ -364,10 +361,10 @@ xfs_efi_release(xfs_efi_log_item_t *efip,
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
xfs_efi_item_free(efip);
} else {
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
}

2
fs/xfs/xfs_filestream.c
Просмотреть файл

@ -348,7 +348,7 @@ _xfs_filestream_update_ag(
}
/* xfs_fstrm_free_func(): callback for freeing cached stream items. */
void
STATIC void
xfs_fstrm_free_func(
unsigned long ino,
void *data)

10
fs/xfs/xfs_fs.h
Просмотреть файл

@ -419,9 +419,13 @@ typedef struct xfs_handle {
/*
* ioctl commands that are used by Linux filesystems
*/
#define XFS_IOC_GETXFLAGS _IOR('f', 1, long)
#define XFS_IOC_SETXFLAGS _IOW('f', 2, long)
#define XFS_IOC_GETVERSION _IOR('v', 1, long)
#define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS
#define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS
#define XFS_IOC_GETVERSION FS_IOC_GETVERSION
/* 32-bit compat counterparts */
#define XFS_IOC32_GETXFLAGS FS_IOC32_GETFLAGS
#define XFS_IOC32_SETXFLAGS FS_IOC32_SETFLAGS
#define XFS_IOC32_GETVERSION FS_IOC32_GETVERSION
/*
* ioctl commands that replace IRIX fcntl()'s

13
fs/xfs/xfs_fsops.c
Просмотреть файл

@ -462,15 +462,13 @@ xfs_fs_counts(
xfs_mount_t *mp,
xfs_fsop_counts_t *cnt)
{
unsigned long s;
xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
cnt->freertx = mp->m_sb.sb_frextents;
cnt->freeino = mp->m_sb.sb_ifree;
cnt->allocino = mp->m_sb.sb_icount;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
return 0;
}
@ -497,7 +495,6 @@ xfs_reserve_blocks(
{
__int64_t lcounter, delta, fdblks_delta;
__uint64_t request;
unsigned long s;
/* If inval is null, report current values and return */
if (inval == (__uint64_t *)NULL) {
@ -515,7 +512,7 @@ xfs_reserve_blocks(
* problem. we needto work out if we are freeing or allocation
* blocks first, then we can do the modification as necessary.
*
* We do this under the XFS_SB_LOCK so that if we are near
* We do this under the m_sb_lock so that if we are near
* ENOSPC, we will hold out any changes while we work out
* what to do. This means that the amount of free space can
* change while we do this, so we need to retry if we end up
@ -526,7 +523,7 @@ xfs_reserve_blocks(
* enabled, disabled or even compiled in....
*/
retry:
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
xfs_icsb_sync_counters_flags(mp, XFS_ICSB_SB_LOCKED);
/*
@ -569,7 +566,7 @@ out:
outval->resblks = mp->m_resblks;
outval->resblks_avail = mp->m_resblks_avail;
}
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
if (fdblks_delta) {
/*

2
fs/xfs/xfs_ialloc_btree.h
Просмотреть файл

@ -81,8 +81,6 @@ typedef struct xfs_btree_sblock xfs_inobt_block_t;
#define XFS_INOBT_MASK(i) ((xfs_inofree_t)1 << (i))
#define XFS_INOBT_IS_FREE(rp,i) \
(((rp)->ir_free & XFS_INOBT_MASK(i)) != 0)
#define XFS_INOBT_IS_FREE_DISK(rp,i) \
((be64_to_cpu((rp)->ir_free) & XFS_INOBT_MASK(i)) != 0)
#define XFS_INOBT_SET_FREE(rp,i) ((rp)->ir_free |= XFS_INOBT_MASK(i))
#define XFS_INOBT_CLR_FREE(rp,i) ((rp)->ir_free &= ~XFS_INOBT_MASK(i))

137
fs/xfs/xfs_iget.c
Просмотреть файл

@ -65,7 +65,7 @@
*/
STATIC int
xfs_iget_core(
bhv_vnode_t *vp,
struct inode *inode,
xfs_mount_t *mp,
xfs_trans_t *tp,
xfs_ino_t ino,
@ -74,9 +74,9 @@ xfs_iget_core(
xfs_inode_t **ipp,
xfs_daddr_t bno)
{
struct inode *old_inode;
xfs_inode_t *ip;
xfs_inode_t *iq;
bhv_vnode_t *inode_vp;
int error;
xfs_icluster_t *icl, *new_icl = NULL;
unsigned long first_index, mask;
@ -111,8 +111,8 @@ again:
goto again;
}
inode_vp = XFS_ITOV_NULL(ip);
if (inode_vp == NULL) {
old_inode = ip->i_vnode;
if (old_inode == NULL) {
/*
* If IRECLAIM is set this inode is
* on its way out of the system,
@ -140,28 +140,9 @@ again:
return ENOENT;
}
/*
* There may be transactions sitting in the
* incore log buffers or being flushed to disk
* at this time. We can't clear the
* XFS_IRECLAIMABLE flag until these
* transactions have hit the disk, otherwise we
* will void the guarantee the flag provides
* xfs_iunpin()
*/
if (xfs_ipincount(ip)) {
read_unlock(&pag->pag_ici_lock);
xfs_log_force(mp, 0,
XFS_LOG_FORCE|XFS_LOG_SYNC);
XFS_STATS_INC(xs_ig_frecycle);
goto again;
}
vn_trace_exit(ip, "xfs_iget.alloc",
(inst_t *)__return_address);
xfs_itrace_exit_tag(ip, "xfs_iget.alloc");
XFS_STATS_INC(xs_ig_found);
xfs_iflags_clear(ip, XFS_IRECLAIMABLE);
read_unlock(&pag->pag_ici_lock);
@ -171,13 +152,11 @@ again:
goto finish_inode;
} else if (vp != inode_vp) {
struct inode *inode = vn_to_inode(inode_vp);
} else if (inode != old_inode) {
/* The inode is being torn down, pause and
* try again.
*/
if (inode->i_state & (I_FREEING | I_CLEAR)) {
if (old_inode->i_state & (I_FREEING | I_CLEAR)) {
read_unlock(&pag->pag_ici_lock);
delay(1);
XFS_STATS_INC(xs_ig_frecycle);
@ -190,7 +169,7 @@ again:
*/
cmn_err(CE_PANIC,
"xfs_iget_core: ambiguous vns: vp/0x%p, invp/0x%p",
inode_vp, vp);
old_inode, inode);
}
/*
@ -200,20 +179,16 @@ again:
XFS_STATS_INC(xs_ig_found);
finish_inode:
if (ip->i_d.di_mode == 0) {
if (!(flags & XFS_IGET_CREATE)) {
if (ip->i_d.di_mode == 0 && !(flags & XFS_IGET_CREATE)) {
xfs_put_perag(mp, pag);
return ENOENT;
}
xfs_iocore_inode_reinit(ip);
}
if (lock_flags != 0)
xfs_ilock(ip, lock_flags);
xfs_iflags_clear(ip, XFS_ISTALE);
vn_trace_exit(ip, "xfs_iget.found",
(inst_t *)__return_address);
xfs_itrace_exit_tag(ip, "xfs_iget.found");
goto return_ip;
}
@ -234,10 +209,16 @@ finish_inode:
return error;
}
vn_trace_exit(ip, "xfs_iget.alloc", (inst_t *)__return_address);
xfs_itrace_exit_tag(ip, "xfs_iget.alloc");
mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER,
"xfsino", ip->i_ino);
mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
init_waitqueue_head(&ip->i_ipin_wait);
atomic_set(&ip->i_pincount, 0);
initnsema(&ip->i_flock, 1, "xfsfino");
xfs_inode_lock_init(ip, vp);
xfs_iocore_inode_init(ip);
if (lock_flags)
xfs_ilock(ip, lock_flags);
@ -333,9 +314,6 @@ finish_inode:
ASSERT(ip->i_df.if_ext_max ==
XFS_IFORK_DSIZE(ip) / sizeof(xfs_bmbt_rec_t));
ASSERT(((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) != 0) ==
((ip->i_iocore.io_flags & XFS_IOCORE_RT) != 0));
xfs_iflags_set(ip, XFS_IMODIFIED);
*ipp = ip;
@ -343,7 +321,7 @@ finish_inode:
* If we have a real type for an on-disk inode, we can set ops(&unlock)
* now. If it's a new inode being created, xfs_ialloc will handle it.
*/
xfs_initialize_vnode(mp, vp, ip);
xfs_initialize_vnode(mp, inode, ip);
return 0;
}
@ -363,28 +341,32 @@ xfs_iget(
xfs_daddr_t bno)
{
struct inode *inode;
bhv_vnode_t *vp = NULL;
xfs_inode_t *ip;
int error;
XFS_STATS_INC(xs_ig_attempts);
retry:
inode = iget_locked(mp->m_super, ino);
if (inode) {
xfs_inode_t *ip;
if (!inode)
/* If we got no inode we are out of memory */
return ENOMEM;
vp = vn_from_inode(inode);
if (inode->i_state & I_NEW) {
vn_initialize(inode);
error = xfs_iget_core(vp, mp, tp, ino, flags,
XFS_STATS_INC(vn_active);
XFS_STATS_INC(vn_alloc);
error = xfs_iget_core(inode, mp, tp, ino, flags,
lock_flags, ipp, bno);
if (error) {
vn_mark_bad(vp);
make_bad_inode(inode);
if (inode->i_state & I_NEW)
unlock_new_inode(inode);
iput(inode);
}
} else {
return error;
}
/*
* If the inode is not fully constructed due to
* filehandle mismatches wait for the inode to go
@ -393,8 +375,14 @@ retry:
* iget_locked will call __wait_on_freeing_inode
* to wait for the inode to go away.
*/
if (is_bad_inode(inode) ||
((ip = xfs_vtoi(vp)) == NULL)) {
if (is_bad_inode(inode)) {
iput(inode);
delay(1);
goto retry;
}
ip = XFS_I(inode);
if (!ip) {
iput(inode);
delay(1);
goto retry;
@ -404,28 +392,7 @@ retry:
xfs_ilock(ip, lock_flags);
XFS_STATS_INC(xs_ig_found);
*ipp = ip;
error = 0;
}
} else
error = ENOMEM; /* If we got no inode we are out of memory */
return error;
}
/*
* Do the setup for the various locks within the incore inode.
*/
void
xfs_inode_lock_init(
xfs_inode_t *ip,
bhv_vnode_t *vp)
{
mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER,
"xfsino", ip->i_ino);
mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
init_waitqueue_head(&ip->i_ipin_wait);
atomic_set(&ip->i_pincount, 0);
initnsema(&ip->i_flock, 1, "xfsfino");
return 0;
}
/*
@ -465,11 +432,9 @@ void
xfs_iput(xfs_inode_t *ip,
uint lock_flags)
{
bhv_vnode_t *vp = XFS_ITOV(ip);
vn_trace_entry(ip, "xfs_iput", (inst_t *)__return_address);
xfs_itrace_entry(ip);
xfs_iunlock(ip, lock_flags);
VN_RELE(vp);
IRELE(ip);
}
/*
@ -479,20 +444,19 @@ void
xfs_iput_new(xfs_inode_t *ip,
uint lock_flags)
{
bhv_vnode_t *vp = XFS_ITOV(ip);
struct inode *inode = vn_to_inode(vp);
struct inode *inode = ip->i_vnode;
vn_trace_entry(ip, "xfs_iput_new", (inst_t *)__return_address);
xfs_itrace_entry(ip);
if ((ip->i_d.di_mode == 0)) {
ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
vn_mark_bad(vp);
make_bad_inode(inode);
}
if (inode->i_state & I_NEW)
unlock_new_inode(inode);
if (lock_flags)
xfs_iunlock(ip, lock_flags);
VN_RELE(vp);
IRELE(ip);
}
@ -505,8 +469,6 @@ xfs_iput_new(xfs_inode_t *ip,
void
xfs_ireclaim(xfs_inode_t *ip)
{
bhv_vnode_t *vp;
/*
* Remove from old hash list and mount list.
*/
@ -535,9 +497,8 @@ xfs_ireclaim(xfs_inode_t *ip)
/*
* Pull our behavior descriptor from the vnode chain.
*/
vp = XFS_ITOV_NULL(ip);
if (vp) {
vn_to_inode(vp)->i_private = NULL;
if (ip->i_vnode) {
ip->i_vnode->i_private = NULL;
ip->i_vnode = NULL;
}

225
fs/xfs/xfs_inode.c
Просмотреть файл

@ -15,6 +15,8 @@
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/log2.h>
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_types.h"
@ -826,15 +828,17 @@ xfs_ip2xflags(
xfs_icdinode_t *dic = &ip->i_d;
return _xfs_dic2xflags(dic->di_flags) |
(XFS_CFORK_Q(dic) ? XFS_XFLAG_HASATTR : 0);
(XFS_IFORK_Q(ip) ? XFS_XFLAG_HASATTR : 0);
}
uint
xfs_dic2xflags(
xfs_dinode_core_t *dic)
xfs_dinode_t *dip)
{
xfs_dinode_core_t *dic = &dip->di_core;
return _xfs_dic2xflags(be16_to_cpu(dic->di_flags)) |
(XFS_CFORK_Q_DISK(dic) ? XFS_XFLAG_HASATTR : 0);
(XFS_DFORK_Q(dip) ? XFS_XFLAG_HASATTR : 0);
}
/*
@ -884,8 +888,8 @@ xfs_iread(
* Initialize inode's trace buffers.
* Do this before xfs_iformat in case it adds entries.
*/
#ifdef XFS_VNODE_TRACE
ip->i_trace = ktrace_alloc(VNODE_TRACE_SIZE, KM_SLEEP);
#ifdef XFS_INODE_TRACE
ip->i_trace = ktrace_alloc(INODE_TRACE_SIZE, KM_SLEEP);
#endif
#ifdef XFS_BMAP_TRACE
ip->i_xtrace = ktrace_alloc(XFS_BMAP_KTRACE_SIZE, KM_SLEEP);
@ -1220,10 +1224,8 @@ xfs_ialloc(
ip->i_d.di_extsize = pip->i_d.di_extsize;
}
} else if ((mode & S_IFMT) == S_IFREG) {
if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT) {
if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT)
di_flags |= XFS_DIFLAG_REALTIME;
ip->i_iocore.io_flags |= XFS_IOCORE_RT;
}
if (pip->i_d.di_flags & XFS_DIFLAG_EXTSZINHERIT) {
di_flags |= XFS_DIFLAG_EXTSIZE;
ip->i_d.di_extsize = pip->i_d.di_extsize;
@ -1298,7 +1300,10 @@ xfs_isize_check(
if ((ip->i_d.di_mode & S_IFMT) != S_IFREG)
return;
if (ip->i_d.di_flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_EXTSIZE))
if (XFS_IS_REALTIME_INODE(ip))
return;
if (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)
return;
nimaps = 2;
@ -1711,7 +1716,7 @@ xfs_itruncate_finish(
* runs.
*/
XFS_BMAP_INIT(&free_list, &first_block);
error = XFS_BUNMAPI(mp, ntp, &ip->i_iocore,
error = xfs_bunmapi(ntp, ip,
first_unmap_block, unmap_len,
XFS_BMAPI_AFLAG(fork) |
(sync ? 0 : XFS_BMAPI_ASYNC),
@ -1844,8 +1849,6 @@ xfs_igrow_start(
xfs_fsize_t new_size,
cred_t *credp)
{
int error;
ASSERT(ismrlocked(&(ip->i_lock), MR_UPDATE) != 0);
ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE) != 0);
ASSERT(new_size > ip->i_size);
@ -1855,9 +1858,7 @@ xfs_igrow_start(
* xfs_write_file() beyond the end of the file
* and any blocks between the old and new file sizes.
*/
error = xfs_zero_eof(XFS_ITOV(ip), &ip->i_iocore, new_size,
ip->i_size);
return error;
return xfs_zero_eof(ip, new_size, ip->i_size);
}
/*
@ -1959,24 +1960,6 @@ xfs_iunlink(
ASSERT(agi->agi_unlinked[bucket_index]);
ASSERT(be32_to_cpu(agi->agi_unlinked[bucket_index]) != agino);
error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0);
if (error)
return error;
/*
* Clear the on-disk di_nlink. This is to prevent xfs_bulkstat
* from picking up this inode when it is reclaimed (its incore state
* initialzed but not flushed to disk yet). The in-core di_nlink is
* already cleared in xfs_droplink() and a corresponding transaction
* logged. The hack here just synchronizes the in-core to on-disk
* di_nlink value in advance before the actual inode sync to disk.
* This is OK because the inode is already unlinked and would never
* change its di_nlink again for this inode generation.
* This is a temporary hack that would require a proper fix
* in the future.
*/
dip->di_core.di_nlink = 0;
if (be32_to_cpu(agi->agi_unlinked[bucket_index]) != NULLAGINO) {
/*
* There is already another inode in the bucket we need
@ -1984,6 +1967,10 @@ xfs_iunlink(
* Here we put the head pointer into our next pointer,
* and then we fall through to point the head at us.
*/
error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0, 0);
if (error)
return error;
ASSERT(be32_to_cpu(dip->di_next_unlinked) == NULLAGINO);
/* both on-disk, don't endian flip twice */
dip->di_next_unlinked = agi->agi_unlinked[bucket_index];
@ -2209,7 +2196,6 @@ xfs_ifree_cluster(
xfs_inode_log_item_t *iip;
xfs_log_item_t *lip;
xfs_perag_t *pag = xfs_get_perag(mp, inum);
SPLDECL(s);
if (mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(mp)) {
blks_per_cluster = 1;
@ -2311,9 +2297,9 @@ xfs_ifree_cluster(
iip = (xfs_inode_log_item_t *)lip;
ASSERT(iip->ili_logged == 1);
lip->li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*)) xfs_istale_done;
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
iip->ili_flush_lsn = iip->ili_item.li_lsn;
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
xfs_iflags_set(iip->ili_inode, XFS_ISTALE);
pre_flushed++;
}
@ -2334,9 +2320,9 @@ xfs_ifree_cluster(
iip->ili_last_fields = iip->ili_format.ilf_fields;
iip->ili_format.ilf_fields = 0;
iip->ili_logged = 1;
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
iip->ili_flush_lsn = iip->ili_item.li_lsn;
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
xfs_buf_attach_iodone(bp,
(void(*)(xfs_buf_t*,xfs_log_item_t*))
@ -2374,6 +2360,8 @@ xfs_ifree(
int error;
int delete;
xfs_ino_t first_ino;
xfs_dinode_t *dip;
xfs_buf_t *ibp;
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(ip->i_transp == tp);
@ -2409,8 +2397,27 @@ xfs_ifree(
* by reincarnations of this inode.
*/
ip->i_d.di_gen++;
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
error = xfs_itobp(ip->i_mount, tp, ip, &dip, &ibp, 0, 0);
if (error)
return error;
/*
* Clear the on-disk di_mode. This is to prevent xfs_bulkstat
* from picking up this inode when it is reclaimed (its incore state
* initialzed but not flushed to disk yet). The in-core di_mode is
* already cleared and a corresponding transaction logged.
* The hack here just synchronizes the in-core to on-disk
* di_mode value in advance before the actual inode sync to disk.
* This is OK because the inode is already unlinked and would never
* change its di_mode again for this inode generation.
* This is a temporary hack that would require a proper fix
* in the future.
*/
dip->di_core.di_mode = 0;
if (delete) {
xfs_ifree_cluster(ip, tp, first_ino);
}
@ -2735,7 +2742,6 @@ void
xfs_idestroy(
xfs_inode_t *ip)
{
switch (ip->i_d.di_mode & S_IFMT) {
case S_IFREG:
case S_IFDIR:
@ -2749,7 +2755,7 @@ xfs_idestroy(
mrfree(&ip->i_iolock);
freesema(&ip->i_flock);
#ifdef XFS_VNODE_TRACE
#ifdef XFS_INODE_TRACE
ktrace_free(ip->i_trace);
#endif
#ifdef XFS_BMAP_TRACE
@ -2775,16 +2781,15 @@ xfs_idestroy(
*/
xfs_mount_t *mp = ip->i_mount;
xfs_log_item_t *lip = &ip->i_itemp->ili_item;
int s;
ASSERT(((lip->li_flags & XFS_LI_IN_AIL) == 0) ||
XFS_FORCED_SHUTDOWN(ip->i_mount));
if (lip->li_flags & XFS_LI_IN_AIL) {
AIL_LOCK(mp, s);
spin_lock(&mp->m_ail_lock);
if (lip->li_flags & XFS_LI_IN_AIL)
xfs_trans_delete_ail(mp, lip, s);
xfs_trans_delete_ail(mp, lip);
else
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
xfs_inode_item_destroy(ip);
}
@ -2816,41 +2821,9 @@ xfs_iunpin(
{
ASSERT(atomic_read(&ip->i_pincount) > 0);
if (atomic_dec_and_lock(&ip->i_pincount, &ip->i_flags_lock)) {
/*
* If the inode is currently being reclaimed, the link between
* the bhv_vnode and the xfs_inode will be broken after the
* XFS_IRECLAIM* flag is set. Hence, if these flags are not
* set, then we can move forward and mark the linux inode dirty
* knowing that it is still valid as it won't freed until after
* the bhv_vnode<->xfs_inode link is broken in xfs_reclaim. The
* i_flags_lock is used to synchronise the setting of the
* XFS_IRECLAIM* flags and the breaking of the link, and so we
* can execute atomically w.r.t to reclaim by holding this lock
* here.
*
* However, we still need to issue the unpin wakeup call as the
* inode reclaim may be blocked waiting for the inode to become
* unpinned.
*/
if (!__xfs_iflags_test(ip, XFS_IRECLAIM|XFS_IRECLAIMABLE)) {
bhv_vnode_t *vp = XFS_ITOV_NULL(ip);
struct inode *inode = NULL;
BUG_ON(vp == NULL);
inode = vn_to_inode(vp);
BUG_ON(inode->i_state & I_CLEAR);
/* make sync come back and flush this inode */
if (!(inode->i_state & (I_NEW|I_FREEING)))
mark_inode_dirty_sync(inode);
}
spin_unlock(&ip->i_flags_lock);
if (atomic_dec_and_test(&ip->i_pincount))
wake_up(&ip->i_ipin_wait);
}
}
/*
* This is called to wait for the given inode to be unpinned.
@ -3338,7 +3311,6 @@ xfs_iflush_int(
#ifdef XFS_TRANS_DEBUG
int first;
#endif
SPLDECL(s);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
ASSERT(issemalocked(&(ip->i_flock)));
@ -3533,9 +3505,9 @@ xfs_iflush_int(
iip->ili_logged = 1;
ASSERT(sizeof(xfs_lsn_t) == 8); /* don't lock if it shrinks */
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
iip->ili_flush_lsn = iip->ili_item.li_lsn;
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
/*
* Attach the function xfs_iflush_done to the inode's
@ -3611,95 +3583,6 @@ xfs_iflush_all(
XFS_MOUNT_IUNLOCK(mp);
}
/*
* xfs_iaccess: check accessibility of inode for mode.
*/
int
xfs_iaccess(
xfs_inode_t *ip,
mode_t mode,
cred_t *cr)
{
int error;
mode_t orgmode = mode;
struct inode *inode = vn_to_inode(XFS_ITOV(ip));
if (mode & S_IWUSR) {
umode_t imode = inode->i_mode;
if (IS_RDONLY(inode) &&
(S_ISREG(imode) || S_ISDIR(imode) || S_ISLNK(imode)))
return XFS_ERROR(EROFS);
if (IS_IMMUTABLE(inode))
return XFS_ERROR(EACCES);
}
/*
* If there's an Access Control List it's used instead of
* the mode bits.
*/
if ((error = _ACL_XFS_IACCESS(ip, mode, cr)) != -1)
return error ? XFS_ERROR(error) : 0;
if (current_fsuid(cr) != ip->i_d.di_uid) {
mode >>= 3;
if (!in_group_p((gid_t)ip->i_d.di_gid))
mode >>= 3;
}
/*
* If the DACs are ok we don't need any capability check.
*/
if ((ip->i_d.di_mode & mode) == mode)
return 0;
/*
* Read/write DACs are always overridable.
* Executable DACs are overridable if at least one exec bit is set.
*/
if (!(orgmode & S_IXUSR) ||
(inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode))
if (capable_cred(cr, CAP_DAC_OVERRIDE))
return 0;
if ((orgmode == S_IRUSR) ||
(S_ISDIR(inode->i_mode) && (!(orgmode & S_IWUSR)))) {
if (capable_cred(cr, CAP_DAC_READ_SEARCH))
return 0;
#ifdef NOISE
cmn_err(CE_NOTE, "Ick: mode=%o, orgmode=%o", mode, orgmode);
#endif /* NOISE */
return XFS_ERROR(EACCES);
}
return XFS_ERROR(EACCES);
}
/*
* xfs_iroundup: round up argument to next power of two
*/
uint
xfs_iroundup(
uint v)
{
int i;
uint m;
if ((v & (v - 1)) == 0)
return v;
ASSERT((v & 0x80000000) == 0);
if ((v & (v + 1)) == 0)
return v + 1;
for (i = 0, m = 1; i < 31; i++, m <<= 1) {
if (v & m)
continue;
v |= m;
if ((v & (v + 1)) == 0)
return v + 1;
}
ASSERT(0);
return( 0 );
}
#ifdef XFS_ILOCK_TRACE
ktrace_t *xfs_ilock_trace_buf;
@ -4206,7 +4089,7 @@ xfs_iext_realloc_direct(
return;
}
if (!is_power_of_2(new_size)){
rnew_size = xfs_iroundup(new_size);
rnew_size = roundup_pow_of_two(new_size);
}
if (rnew_size != ifp->if_real_bytes) {
ifp->if_u1.if_extents =
@ -4229,7 +4112,7 @@ xfs_iext_realloc_direct(
else {
new_size += ifp->if_bytes;
if (!is_power_of_2(new_size)) {
rnew_size = xfs_iroundup(new_size);
rnew_size = roundup_pow_of_two(new_size);
}
xfs_iext_inline_to_direct(ifp, rnew_size);
}

98
fs/xfs/xfs_inode.h
Просмотреть файл

@ -132,45 +132,6 @@ typedef struct dm_attrs_s {
__uint16_t da_pad; /* DMIG extra padding */
} dm_attrs_t;
typedef struct xfs_iocore {
void *io_obj; /* pointer to container
* inode or dcxvn structure */
struct xfs_mount *io_mount; /* fs mount struct ptr */
#ifdef DEBUG
mrlock_t *io_lock; /* inode IO lock */
mrlock_t *io_iolock; /* inode IO lock */
#endif
/* I/O state */
xfs_fsize_t io_new_size; /* sz when write completes */
/* Miscellaneous state. */
unsigned int io_flags; /* IO related flags */
/* DMAPI state */
dm_attrs_t io_dmattrs;
} xfs_iocore_t;
#define io_dmevmask io_dmattrs.da_dmevmask
#define io_dmstate io_dmattrs.da_dmstate
#define XFS_IO_INODE(io) ((xfs_inode_t *) ((io)->io_obj))
#define XFS_IO_DCXVN(io) ((dcxvn_t *) ((io)->io_obj))
/*
* Flags in the flags field
*/
#define XFS_IOCORE_RT 0x1
/*
* xfs_iocore prototypes
*/
extern void xfs_iocore_inode_init(struct xfs_inode *);
extern void xfs_iocore_inode_reinit(struct xfs_inode *);
/*
* This is the xfs inode cluster structure. This structure is used by
* xfs_iflush to find inodes that share a cluster and can be flushed to disk at
@ -181,7 +142,7 @@ typedef struct xfs_icluster {
xfs_daddr_t icl_blkno; /* starting block number of
* the cluster */
struct xfs_buf *icl_buf; /* the inode buffer */
lock_t icl_lock; /* inode list lock */
spinlock_t icl_lock; /* inode list lock */
} xfs_icluster_t;
/*
@ -283,9 +244,6 @@ typedef struct xfs_inode {
struct xfs_inode **i_refcache; /* ptr to entry in ref cache */
struct xfs_inode *i_release; /* inode to unref */
#endif
/* I/O state */
xfs_iocore_t i_iocore; /* I/O core */
/* Miscellaneous state. */
unsigned short i_flags; /* see defined flags below */
unsigned char i_update_core; /* timestamps/size is dirty */
@ -298,9 +256,10 @@ typedef struct xfs_inode {
struct hlist_node i_cnode; /* cluster link node */
xfs_fsize_t i_size; /* in-memory size */
xfs_fsize_t i_new_size; /* size when write completes */
atomic_t i_iocount; /* outstanding I/O count */
/* Trace buffers per inode. */
#ifdef XFS_VNODE_TRACE
#ifdef XFS_INODE_TRACE
struct ktrace *i_trace; /* general inode trace */
#endif
#ifdef XFS_BMAP_TRACE
@ -382,17 +341,42 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
/*
* Fork handling.
*/
#define XFS_IFORK_PTR(ip,w) \
((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp)
#define XFS_IFORK_Q(ip) XFS_CFORK_Q(&(ip)->i_d)
#define XFS_IFORK_DSIZE(ip) XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount)
#define XFS_IFORK_ASIZE(ip) XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount)
#define XFS_IFORK_SIZE(ip,w) XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w)
#define XFS_IFORK_FORMAT(ip,w) XFS_CFORK_FORMAT(&ip->i_d, w)
#define XFS_IFORK_FMT_SET(ip,w,n) XFS_CFORK_FMT_SET(&ip->i_d, w, n)
#define XFS_IFORK_NEXTENTS(ip,w) XFS_CFORK_NEXTENTS(&ip->i_d, w)
#define XFS_IFORK_NEXT_SET(ip,w,n) XFS_CFORK_NEXT_SET(&ip->i_d, w, n)
#define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
#define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
#define XFS_IFORK_PTR(ip,w) \
((w) == XFS_DATA_FORK ? \
&(ip)->i_df : \
(ip)->i_afp)
#define XFS_IFORK_DSIZE(ip) \
(XFS_IFORK_Q(ip) ? \
XFS_IFORK_BOFF(ip) : \
XFS_LITINO((ip)->i_mount))
#define XFS_IFORK_ASIZE(ip) \
(XFS_IFORK_Q(ip) ? \
XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \
0)
#define XFS_IFORK_SIZE(ip,w) \
((w) == XFS_DATA_FORK ? \
XFS_IFORK_DSIZE(ip) : \
XFS_IFORK_ASIZE(ip))
#define XFS_IFORK_FORMAT(ip,w) \
((w) == XFS_DATA_FORK ? \
(ip)->i_d.di_format : \
(ip)->i_d.di_aformat)
#define XFS_IFORK_FMT_SET(ip,w,n) \
((w) == XFS_DATA_FORK ? \
((ip)->i_d.di_format = (n)) : \
((ip)->i_d.di_aformat = (n)))
#define XFS_IFORK_NEXTENTS(ip,w) \
((w) == XFS_DATA_FORK ? \
(ip)->i_d.di_nextents : \
(ip)->i_d.di_anextents)
#define XFS_IFORK_NEXT_SET(ip,w,n) \
((w) == XFS_DATA_FORK ? \
((ip)->i_d.di_nextents = (n)) : \
((ip)->i_d.di_anextents = (n)))
#ifdef __KERNEL__
@ -509,7 +493,6 @@ void xfs_ihash_init(struct xfs_mount *);
void xfs_ihash_free(struct xfs_mount *);
xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
struct xfs_trans *);
void xfs_inode_lock_init(xfs_inode_t *, bhv_vnode_t *);
int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
uint, uint, xfs_inode_t **, xfs_daddr_t);
void xfs_iput(xfs_inode_t *, uint);
@ -545,7 +528,7 @@ void xfs_dinode_to_disk(struct xfs_dinode_core *,
struct xfs_icdinode *);
uint xfs_ip2xflags(struct xfs_inode *);
uint xfs_dic2xflags(struct xfs_dinode_core *);
uint xfs_dic2xflags(struct xfs_dinode *);
int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
struct xfs_bmap_free *);
int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
@ -567,13 +550,12 @@ void xfs_iunpin(xfs_inode_t *);
int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
int xfs_iflush(xfs_inode_t *, uint);
void xfs_iflush_all(struct xfs_mount *);
int xfs_iaccess(xfs_inode_t *, mode_t, cred_t *);
uint xfs_iroundup(uint);
void xfs_ichgtime(xfs_inode_t *, int);
xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
void xfs_lock_inodes(xfs_inode_t **, int, int, uint);
void xfs_synchronize_atime(xfs_inode_t *);
void xfs_mark_inode_dirty_sync(xfs_inode_t *);
xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,

26
fs/xfs/xfs_inode_item.c
Просмотреть файл

@ -274,6 +274,11 @@ xfs_inode_item_format(
*/
xfs_synchronize_atime(ip);
/*
* make sure the linux inode is dirty
*/
xfs_mark_inode_dirty_sync(ip);
vecp->i_addr = (xfs_caddr_t)&ip->i_d;
vecp->i_len = sizeof(xfs_dinode_core_t);
XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ICORE);
@ -615,7 +620,7 @@ xfs_inode_item_trylock(
return XFS_ITEM_PUSHBUF;
} else {
/*
* We hold the AIL_LOCK, so we must specify the
* We hold the AIL lock, so we must specify the
* NONOTIFY flag so that we won't double trip.
*/
xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY);
@ -749,7 +754,7 @@ xfs_inode_item_committed(
* marked delayed write. If that's the case, we'll initiate a bawrite on that
* buffer to expedite the process.
*
* We aren't holding the AIL_LOCK (or the flush lock) when this gets called,
* We aren't holding the AIL lock (or the flush lock) when this gets called,
* so it is inherently race-y.
*/
STATIC void
@ -792,7 +797,7 @@ xfs_inode_item_pushbuf(
if (XFS_BUF_ISDELAYWRITE(bp)) {
/*
* We were racing with iflush because we don't hold
* the AIL_LOCK or the flush lock. However, at this point,
* the AIL lock or the flush lock. However, at this point,
* we have the buffer, and we know that it's dirty.
* So, it's possible that iflush raced with us, and
* this item is already taken off the AIL.
@ -968,7 +973,6 @@ xfs_iflush_done(
xfs_inode_log_item_t *iip)
{
xfs_inode_t *ip;
SPLDECL(s);
ip = iip->ili_inode;
@ -983,15 +987,15 @@ xfs_iflush_done(
*/
if (iip->ili_logged &&
(iip->ili_item.li_lsn == iip->ili_flush_lsn)) {
AIL_LOCK(ip->i_mount, s);
spin_lock(&ip->i_mount->m_ail_lock);
if (iip->ili_item.li_lsn == iip->ili_flush_lsn) {
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(ip->i_mount,
(xfs_log_item_t*)iip, s);
(xfs_log_item_t*)iip);
} else {
AIL_UNLOCK(ip->i_mount, s);
spin_unlock(&ip->i_mount->m_ail_lock);
}
}
@ -1025,21 +1029,19 @@ xfs_iflush_abort(
{
xfs_inode_log_item_t *iip;
xfs_mount_t *mp;
SPLDECL(s);
iip = ip->i_itemp;
mp = ip->i_mount;
if (iip) {
if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
AIL_LOCK(mp, s);
spin_lock(&mp->m_ail_lock);
if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)iip,
s);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)iip);
} else
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
iip->ili_logged = 0;
/*

119
fs/xfs/xfs_iocore.c
Просмотреть файл

@ -1,119 +0,0 @@
/*
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_types.h"
#include "xfs_bit.h"
#include "xfs_log.h"
#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir2.h"
#include "xfs_dfrag.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
#include "xfs_dir2_sf.h"
#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_itable.h"
#include "xfs_btree.h"
#include "xfs_alloc.h"
#include "xfs_ialloc.h"
#include "xfs_bmap.h"
#include "xfs_error.h"
#include "xfs_rw.h"
#include "xfs_quota.h"
#include "xfs_trans_space.h"
#include "xfs_iomap.h"
STATIC xfs_fsize_t
xfs_size_fn(
xfs_inode_t *ip)
{
return XFS_ISIZE(ip);
}
STATIC int
xfs_ioinit(
struct xfs_mount *mp,
struct xfs_mount_args *mntargs,
int flags)
{
return xfs_mountfs(mp, flags);
}
xfs_ioops_t xfs_iocore_xfs = {
.xfs_ioinit = (xfs_ioinit_t) xfs_ioinit,
.xfs_bmapi_func = (xfs_bmapi_t) xfs_bmapi,
.xfs_bunmapi_func = (xfs_bunmapi_t) xfs_bunmapi,
.xfs_bmap_eof_func = (xfs_bmap_eof_t) xfs_bmap_eof,
.xfs_iomap_write_direct =
(xfs_iomap_write_direct_t) xfs_iomap_write_direct,
.xfs_iomap_write_delay =
(xfs_iomap_write_delay_t) xfs_iomap_write_delay,
.xfs_iomap_write_allocate =
(xfs_iomap_write_allocate_t) xfs_iomap_write_allocate,
.xfs_iomap_write_unwritten =
(xfs_iomap_write_unwritten_t) xfs_iomap_write_unwritten,
.xfs_ilock = (xfs_lock_t) xfs_ilock,
.xfs_lck_map_shared = (xfs_lck_map_shared_t) xfs_ilock_map_shared,
.xfs_ilock_demote = (xfs_lock_demote_t) xfs_ilock_demote,
.xfs_ilock_nowait = (xfs_lock_nowait_t) xfs_ilock_nowait,
.xfs_unlock = (xfs_unlk_t) xfs_iunlock,
.xfs_size_func = (xfs_size_t) xfs_size_fn,
.xfs_iodone = (xfs_iodone_t) fs_noerr,
.xfs_swap_extents_func = (xfs_swap_extents_t) xfs_swap_extents,
};
void
xfs_iocore_inode_reinit(
xfs_inode_t *ip)
{
xfs_iocore_t *io = &ip->i_iocore;
io->io_flags = 0;
if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
io->io_flags |= XFS_IOCORE_RT;
io->io_dmevmask = ip->i_d.di_dmevmask;
io->io_dmstate = ip->i_d.di_dmstate;
}
void
xfs_iocore_inode_init(
xfs_inode_t *ip)
{
xfs_iocore_t *io = &ip->i_iocore;
xfs_mount_t *mp = ip->i_mount;
io->io_mount = mp;
#ifdef DEBUG
io->io_lock = &ip->i_lock;
io->io_iolock = &ip->i_iolock;
#endif
io->io_obj = (void *)ip;
xfs_iocore_inode_reinit(ip);
}

206
fs/xfs/xfs_iomap.c
Просмотреть файл

@ -53,12 +53,10 @@
void
xfs_iomap_enter_trace(
int tag,
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_off_t offset,
ssize_t count)
{
xfs_inode_t *ip = XFS_IO_INODE(io);
if (!ip->i_rwtrace)
return;
@ -70,8 +68,8 @@ xfs_iomap_enter_trace(
(void *)((unsigned long)((offset >> 32) & 0xffffffff)),
(void *)((unsigned long)(offset & 0xffffffff)),
(void *)((unsigned long)count),
(void *)((unsigned long)((io->io_new_size >> 32) & 0xffffffff)),
(void *)((unsigned long)(io->io_new_size & 0xffffffff)),
(void *)((unsigned long)((ip->i_new_size >> 32) & 0xffffffff)),
(void *)((unsigned long)(ip->i_new_size & 0xffffffff)),
(void *)((unsigned long)current_pid()),
(void *)NULL,
(void *)NULL,
@ -84,15 +82,13 @@ xfs_iomap_enter_trace(
void
xfs_iomap_map_trace(
int tag,
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_off_t offset,
ssize_t count,
xfs_iomap_t *iomapp,
xfs_bmbt_irec_t *imapp,
int flags)
{
xfs_inode_t *ip = XFS_IO_INODE(io);
if (!ip->i_rwtrace)
return;
@ -126,7 +122,7 @@ xfs_iomap_map_trace(
STATIC int
xfs_imap_to_bmap(
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_off_t offset,
xfs_bmbt_irec_t *imap,
xfs_iomap_t *iomapp,
@ -134,11 +130,10 @@ xfs_imap_to_bmap(
int iomaps, /* Number of iomap entries */
int flags)
{
xfs_mount_t *mp;
xfs_mount_t *mp = ip->i_mount;
int pbm;
xfs_fsblock_t start_block;
mp = io->io_mount;
for (pbm = 0; imaps && pbm < iomaps; imaps--, iomapp++, imap++, pbm++) {
iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff);
@ -146,7 +141,7 @@ xfs_imap_to_bmap(
iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount);
iomapp->iomap_flags = flags;
if (io->io_flags & XFS_IOCORE_RT) {
if (XFS_IS_REALTIME_INODE(ip)) {
iomapp->iomap_flags |= IOMAP_REALTIME;
iomapp->iomap_target = mp->m_rtdev_targp;
} else {
@ -160,7 +155,7 @@ xfs_imap_to_bmap(
iomapp->iomap_bn = IOMAP_DADDR_NULL;
iomapp->iomap_flags |= IOMAP_DELAY;
} else {
iomapp->iomap_bn = XFS_FSB_TO_DB_IO(io, start_block);
iomapp->iomap_bn = XFS_FSB_TO_DB(ip, start_block);
if (ISUNWRITTEN(imap))
iomapp->iomap_flags |= IOMAP_UNWRITTEN;
}
@ -172,14 +167,14 @@ xfs_imap_to_bmap(
int
xfs_iomap(
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_off_t offset,
ssize_t count,
int flags,
xfs_iomap_t *iomapp,
int *niomaps)
{
xfs_mount_t *mp = io->io_mount;
xfs_mount_t *mp = ip->i_mount;
xfs_fileoff_t offset_fsb, end_fsb;
int error = 0;
int lockmode = 0;
@ -188,45 +183,37 @@ xfs_iomap(
int bmapi_flags = 0;
int iomap_flags = 0;
ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
switch (flags &
(BMAPI_READ | BMAPI_WRITE | BMAPI_ALLOCATE |
BMAPI_UNWRITTEN | BMAPI_DEVICE)) {
switch (flags & (BMAPI_READ | BMAPI_WRITE | BMAPI_ALLOCATE)) {
case BMAPI_READ:
xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, io, offset, count);
lockmode = XFS_LCK_MAP_SHARED(mp, io);
xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, ip, offset, count);
lockmode = xfs_ilock_map_shared(ip);
bmapi_flags = XFS_BMAPI_ENTIRE;
break;
case BMAPI_WRITE:
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, io, offset, count);
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, ip, offset, count);
lockmode = XFS_ILOCK_EXCL|XFS_EXTSIZE_WR;
if (flags & BMAPI_IGNSTATE)
bmapi_flags |= XFS_BMAPI_IGSTATE|XFS_BMAPI_ENTIRE;
XFS_ILOCK(mp, io, lockmode);
xfs_ilock(ip, lockmode);
break;
case BMAPI_ALLOCATE:
xfs_iomap_enter_trace(XFS_IOMAP_ALLOC_ENTER, io, offset, count);
xfs_iomap_enter_trace(XFS_IOMAP_ALLOC_ENTER, ip, offset, count);
lockmode = XFS_ILOCK_SHARED|XFS_EXTSIZE_RD;
bmapi_flags = XFS_BMAPI_ENTIRE;
/* Attempt non-blocking lock */
if (flags & BMAPI_TRYLOCK) {
if (!XFS_ILOCK_NOWAIT(mp, io, lockmode))
if (!xfs_ilock_nowait(ip, lockmode))
return XFS_ERROR(EAGAIN);
} else {
XFS_ILOCK(mp, io, lockmode);
xfs_ilock(ip, lockmode);
}
break;
case BMAPI_UNWRITTEN:
goto phase2;
case BMAPI_DEVICE:
lockmode = XFS_LCK_MAP_SHARED(mp, io);
iomapp->iomap_target = io->io_flags & XFS_IOCORE_RT ?
mp->m_rtdev_targp : mp->m_ddev_targp;
error = 0;
*niomaps = 1;
goto out;
default:
BUG();
}
@ -237,7 +224,7 @@ xfs_iomap(
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
error = XFS_BMAPI(mp, NULL, io, offset_fsb,
error = xfs_bmapi(NULL, ip, offset_fsb,
(xfs_filblks_t)(end_fsb - offset_fsb),
bmapi_flags, NULL, 0, &imap,
&nimaps, NULL, NULL);
@ -245,54 +232,48 @@ xfs_iomap(
if (error)
goto out;
phase2:
switch (flags & (BMAPI_WRITE|BMAPI_ALLOCATE|BMAPI_UNWRITTEN)) {
switch (flags & (BMAPI_WRITE|BMAPI_ALLOCATE)) {
case BMAPI_WRITE:
/* If we found an extent, return it */
if (nimaps &&
(imap.br_startblock != HOLESTARTBLOCK) &&
(imap.br_startblock != DELAYSTARTBLOCK)) {
xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, io,
xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, ip,
offset, count, iomapp, &imap, flags);
break;
}
if (flags & (BMAPI_DIRECT|BMAPI_MMAP)) {
error = XFS_IOMAP_WRITE_DIRECT(mp, io, offset,
count, flags, &imap, &nimaps, nimaps);
error = xfs_iomap_write_direct(ip, offset, count, flags,
&imap, &nimaps, nimaps);
} else {
error = XFS_IOMAP_WRITE_DELAY(mp, io, offset, count,
flags, &imap, &nimaps);
error = xfs_iomap_write_delay(ip, offset, count, flags,
&imap, &nimaps);
}
if (!error) {
xfs_iomap_map_trace(XFS_IOMAP_ALLOC_MAP, io,
xfs_iomap_map_trace(XFS_IOMAP_ALLOC_MAP, ip,
offset, count, iomapp, &imap, flags);
}
iomap_flags = IOMAP_NEW;
break;
case BMAPI_ALLOCATE:
/* If we found an extent, return it */
XFS_IUNLOCK(mp, io, lockmode);
xfs_iunlock(ip, lockmode);
lockmode = 0;
if (nimaps && !ISNULLSTARTBLOCK(imap.br_startblock)) {
xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, io,
xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, ip,
offset, count, iomapp, &imap, flags);
break;
}
error = XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count,
error = xfs_iomap_write_allocate(ip, offset, count,
&imap, &nimaps);
break;
case BMAPI_UNWRITTEN:
lockmode = 0;
error = XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count);
nimaps = 0;
break;
}
if (nimaps) {
*niomaps = xfs_imap_to_bmap(io, offset, &imap,
*niomaps = xfs_imap_to_bmap(ip, offset, &imap,
iomapp, nimaps, *niomaps, iomap_flags);
} else if (niomaps) {
*niomaps = 0;
@ -300,14 +281,15 @@ phase2:
out:
if (lockmode)
XFS_IUNLOCK(mp, io, lockmode);
xfs_iunlock(ip, lockmode);
return XFS_ERROR(error);
}
STATIC int
xfs_iomap_eof_align_last_fsb(
xfs_mount_t *mp,
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_fsize_t isize,
xfs_extlen_t extsize,
xfs_fileoff_t *last_fsb)
@ -316,7 +298,7 @@ xfs_iomap_eof_align_last_fsb(
xfs_extlen_t align;
int eof, error;
if (io->io_flags & XFS_IOCORE_RT)
if (XFS_IS_REALTIME_INODE(ip))
;
/*
* If mounted with the "-o swalloc" option, roundup the allocation
@ -347,7 +329,7 @@ xfs_iomap_eof_align_last_fsb(
}
if (new_last_fsb) {
error = XFS_BMAP_EOF(mp, io, new_last_fsb, XFS_DATA_FORK, &eof);
error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof);
if (error)
return error;
if (eof)
@ -416,7 +398,6 @@ xfs_iomap_write_direct(
int found)
{
xfs_mount_t *mp = ip->i_mount;
xfs_iocore_t *io = &ip->i_iocore;
xfs_fileoff_t offset_fsb;
xfs_fileoff_t last_fsb;
xfs_filblks_t count_fsb, resaligned;
@ -446,13 +427,13 @@ xfs_iomap_write_direct(
extsz = xfs_get_extsz_hint(ip);
isize = ip->i_size;
if (io->io_new_size > isize)
isize = io->io_new_size;
if (ip->i_new_size > isize)
isize = ip->i_new_size;
offset_fsb = XFS_B_TO_FSBT(mp, offset);
last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));
if ((offset + count) > isize) {
error = xfs_iomap_eof_align_last_fsb(mp, io, isize, extsz,
error = xfs_iomap_eof_align_last_fsb(mp, ip, isize, extsz,
&last_fsb);
if (error)
goto error_out;
@ -519,7 +500,7 @@ xfs_iomap_write_direct(
*/
XFS_BMAP_INIT(&free_list, &firstfsb);
nimaps = 1;
error = XFS_BMAPI(mp, tp, io, offset_fsb, count_fsb, bmapi_flag,
error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, bmapi_flag,
&firstfsb, 0, &imap, &nimaps, &free_list, NULL);
if (error)
goto error0;
@ -542,7 +523,8 @@ xfs_iomap_write_direct(
goto error_out;
}
if (unlikely(!imap.br_startblock && !(io->io_flags & XFS_IOCORE_RT))) {
if (unlikely(!imap.br_startblock &&
!(XFS_IS_REALTIME_INODE(ip)))) {
error = xfs_cmn_err_fsblock_zero(ip, &imap);
goto error_out;
}
@ -577,7 +559,7 @@ error_out:
STATIC int
xfs_iomap_eof_want_preallocate(
xfs_mount_t *mp,
xfs_iocore_t *io,
xfs_inode_t *ip,
xfs_fsize_t isize,
xfs_off_t offset,
size_t count,
@ -604,7 +586,7 @@ xfs_iomap_eof_want_preallocate(
while (count_fsb > 0) {
imaps = nimaps;
firstblock = NULLFSBLOCK;
error = XFS_BMAPI(mp, NULL, io, start_fsb, count_fsb, 0,
error = xfs_bmapi(NULL, ip, start_fsb, count_fsb, 0,
&firstblock, 0, imap, &imaps, NULL, NULL);
if (error)
return error;
@ -630,7 +612,6 @@ xfs_iomap_write_delay(
int *nmaps)
{
xfs_mount_t *mp = ip->i_mount;
xfs_iocore_t *io = &ip->i_iocore;
xfs_fileoff_t offset_fsb;
xfs_fileoff_t last_fsb;
xfs_off_t aligned_offset;
@ -658,10 +639,10 @@ xfs_iomap_write_delay(
retry:
isize = ip->i_size;
if (io->io_new_size > isize)
isize = io->io_new_size;
if (ip->i_new_size > isize)
isize = ip->i_new_size;
error = xfs_iomap_eof_want_preallocate(mp, io, isize, offset, count,
error = xfs_iomap_eof_want_preallocate(mp, ip, isize, offset, count,
ioflag, imap, XFS_WRITE_IMAPS, &prealloc);
if (error)
return error;
@ -675,7 +656,7 @@ retry:
}
if (prealloc || extsz) {
error = xfs_iomap_eof_align_last_fsb(mp, io, isize, extsz,
error = xfs_iomap_eof_align_last_fsb(mp, ip, isize, extsz,
&last_fsb);
if (error)
return error;
@ -683,7 +664,7 @@ retry:
nimaps = XFS_WRITE_IMAPS;
firstblock = NULLFSBLOCK;
error = XFS_BMAPI(mp, NULL, io, offset_fsb,
error = xfs_bmapi(NULL, ip, offset_fsb,
(xfs_filblks_t)(last_fsb - offset_fsb),
XFS_BMAPI_DELAY | XFS_BMAPI_WRITE |
XFS_BMAPI_ENTIRE, &firstblock, 1, imap,
@ -697,7 +678,7 @@ retry:
*/
if (nimaps == 0) {
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE,
io, offset, count);
ip, offset, count);
if (xfs_flush_space(ip, &fsynced, &ioflag))
return XFS_ERROR(ENOSPC);
@ -705,7 +686,8 @@ retry:
goto retry;
}
if (unlikely(!imap[0].br_startblock && !(io->io_flags & XFS_IOCORE_RT)))
if (unlikely(!imap[0].br_startblock &&
!(XFS_IS_REALTIME_INODE(ip))))
return xfs_cmn_err_fsblock_zero(ip, &imap[0]);
*ret_imap = imap[0];
@ -720,6 +702,9 @@ retry:
* the originating callers request.
*
* Called without a lock on the inode.
*
* We no longer bother to look at the incoming map - all we have to
* guarantee is that whatever we allocate fills the required range.
*/
int
xfs_iomap_write_allocate(
@ -730,15 +715,14 @@ xfs_iomap_write_allocate(
int *retmap)
{
xfs_mount_t *mp = ip->i_mount;
xfs_iocore_t *io = &ip->i_iocore;
xfs_fileoff_t offset_fsb, last_block;
xfs_fileoff_t end_fsb, map_start_fsb;
xfs_fsblock_t first_block;
xfs_bmap_free_t free_list;
xfs_filblks_t count_fsb;
xfs_bmbt_irec_t imap[XFS_STRAT_WRITE_IMAPS];
xfs_bmbt_irec_t imap;
xfs_trans_t *tp;
int i, nimaps, committed;
int nimaps, committed;
int error = 0;
int nres;
@ -785,13 +769,38 @@ xfs_iomap_write_allocate(
XFS_BMAP_INIT(&free_list, &first_block);
nimaps = XFS_STRAT_WRITE_IMAPS;
/*
* Ensure we don't go beyond eof - it is possible
* the extents changed since we did the read call,
* we dropped the ilock in the interim.
* it is possible that the extents have changed since
* we did the read call as we dropped the ilock for a
* while. We have to be careful about truncates or hole
* punchs here - we are not allowed to allocate
* non-delalloc blocks here.
*
* The only protection against truncation is the pages
* for the range we are being asked to convert are
* locked and hence a truncate will block on them
* first.
*
* As a result, if we go beyond the range we really
* need and hit an delalloc extent boundary followed by
* a hole while we have excess blocks in the map, we
* will fill the hole incorrectly and overrun the
* transaction reservation.
*
* Using a single map prevents this as we are forced to
* check each map we look for overlap with the desired
* range and abort as soon as we find it. Also, given
* that we only return a single map, having one beyond
* what we can return is probably a bit silly.
*
* We also need to check that we don't go beyond EOF;
* this is a truncate optimisation as a truncate sets
* the new file size before block on the pages we
* currently have locked under writeback. Because they
* are about to be tossed, we don't need to write them
* back....
*/
nimaps = 1;
end_fsb = XFS_B_TO_FSB(mp, ip->i_size);
xfs_bmap_last_offset(NULL, ip, &last_block,
XFS_DATA_FORK);
@ -805,9 +814,9 @@ xfs_iomap_write_allocate(
}
/* Go get the actual blocks */
error = XFS_BMAPI(mp, tp, io, map_start_fsb, count_fsb,
error = xfs_bmapi(tp, ip, map_start_fsb, count_fsb,
XFS_BMAPI_WRITE, &first_block, 1,
imap, &nimaps, &free_list, NULL);
&imap, &nimaps, &free_list, NULL);
if (error)
goto trans_cancel;
@ -826,27 +835,24 @@ xfs_iomap_write_allocate(
* See if we were able to allocate an extent that
* covers at least part of the callers request
*/
for (i = 0; i < nimaps; i++) {
if (unlikely(!imap[i].br_startblock &&
!(io->io_flags & XFS_IOCORE_RT)))
return xfs_cmn_err_fsblock_zero(ip, &imap[i]);
if ((offset_fsb >= imap[i].br_startoff) &&
(offset_fsb < (imap[i].br_startoff +
imap[i].br_blockcount))) {
*map = imap[i];
if (unlikely(!imap.br_startblock &&
XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap);
if ((offset_fsb >= imap.br_startoff) &&
(offset_fsb < (imap.br_startoff +
imap.br_blockcount))) {
*map = imap;
*retmap = 1;
XFS_STATS_INC(xs_xstrat_quick);
return 0;
}
count_fsb -= imap[i].br_blockcount;
}
/* So far we have not mapped the requested part of the
/*
* So far we have not mapped the requested part of the
* file, just surrounding data, try again.
*/
nimaps--;
map_start_fsb = imap[nimaps].br_startoff +
imap[nimaps].br_blockcount;
count_fsb -= imap.br_blockcount;
map_start_fsb = imap.br_startoff + imap.br_blockcount;
}
trans_cancel:
@ -864,7 +870,6 @@ xfs_iomap_write_unwritten(
size_t count)
{
xfs_mount_t *mp = ip->i_mount;
xfs_iocore_t *io = &ip->i_iocore;
xfs_fileoff_t offset_fsb;
xfs_filblks_t count_fsb;
xfs_filblks_t numblks_fsb;
@ -877,8 +882,7 @@ xfs_iomap_write_unwritten(
int committed;
int error;
xfs_iomap_enter_trace(XFS_IOMAP_UNWRITTEN,
&ip->i_iocore, offset, count);
xfs_iomap_enter_trace(XFS_IOMAP_UNWRITTEN, ip, offset, count);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
@ -912,7 +916,7 @@ xfs_iomap_write_unwritten(
*/
XFS_BMAP_INIT(&free_list, &firstfsb);
nimaps = 1;
error = XFS_BMAPI(mp, tp, io, offset_fsb, count_fsb,
error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
XFS_BMAPI_WRITE|XFS_BMAPI_CONVERT, &firstfsb,
1, &imap, &nimaps, &free_list, NULL);
if (error)
@ -928,7 +932,7 @@ xfs_iomap_write_unwritten(
return XFS_ERROR(error);
if (unlikely(!imap.br_startblock &&
!(io->io_flags & XFS_IOCORE_RT)))
!(XFS_IS_REALTIME_INODE(ip))))
return xfs_cmn_err_fsblock_zero(ip, &imap);
if ((numblks_fsb = imap.br_blockcount) == 0) {

5
fs/xfs/xfs_iomap.h
Просмотреть файл

@ -36,14 +36,12 @@ typedef enum {
BMAPI_READ = (1 << 0), /* read extents */
BMAPI_WRITE = (1 << 1), /* create extents */
BMAPI_ALLOCATE = (1 << 2), /* delayed allocate to real extents */
BMAPI_UNWRITTEN = (1 << 3), /* unwritten extents to real extents */
/* modifiers */
BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */
BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */
BMAPI_MMAP = (1 << 6), /* allocate for mmap write */
BMAPI_SYNC = (1 << 7), /* sync write to flush delalloc space */
BMAPI_TRYLOCK = (1 << 8), /* non-blocking request */
BMAPI_DEVICE = (1 << 9), /* we only want to know the device */
} bmapi_flags_t;
@ -73,11 +71,10 @@ typedef struct xfs_iomap {
iomap_flags_t iomap_flags;
} xfs_iomap_t;
struct xfs_iocore;
struct xfs_inode;
struct xfs_bmbt_irec;
extern int xfs_iomap(struct xfs_iocore *, xfs_off_t, ssize_t, int,
extern int xfs_iomap(struct xfs_inode *, xfs_off_t, ssize_t, int,
struct xfs_iomap *, int *);
extern int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
int, struct xfs_bmbt_irec *, int *, int);

12
fs/xfs/xfs_itable.c
Просмотреть файл

@ -170,7 +170,7 @@ xfs_bulkstat_one_dinode(
buf->bs_mtime.tv_nsec = be32_to_cpu(dic->di_mtime.t_nsec);
buf->bs_ctime.tv_sec = be32_to_cpu(dic->di_ctime.t_sec);
buf->bs_ctime.tv_nsec = be32_to_cpu(dic->di_ctime.t_nsec);
buf->bs_xflags = xfs_dic2xflags(dic);
buf->bs_xflags = xfs_dic2xflags(dip);
buf->bs_extsize = be32_to_cpu(dic->di_extsize) << mp->m_sb.sb_blocklog;
buf->bs_extents = be32_to_cpu(dic->di_nextents);
buf->bs_gen = be32_to_cpu(dic->di_gen);
@ -291,7 +291,7 @@ xfs_bulkstat_use_dinode(
dip = (xfs_dinode_t *)
xfs_buf_offset(bp, clustidx << mp->m_sb.sb_inodelog);
/*
* Check the buffer containing the on-disk inode for di_nlink == 0.
* Check the buffer containing the on-disk inode for di_mode == 0.
* This is to prevent xfs_bulkstat from picking up just reclaimed
* inodes that have their in-core state initialized but not flushed
* to disk yet. This is a temporary hack that would require a proper
@ -299,7 +299,7 @@ xfs_bulkstat_use_dinode(
*/
if (be16_to_cpu(dip->di_core.di_magic) != XFS_DINODE_MAGIC ||
!XFS_DINODE_GOOD_VERSION(dip->di_core.di_version) ||
!dip->di_core.di_nlink)
!dip->di_core.di_mode)
return 0;
if (flags & BULKSTAT_FG_QUICK) {
*dipp = dip;
@ -307,7 +307,7 @@ xfs_bulkstat_use_dinode(
}
/* BULKSTAT_FG_INLINE: if attr fork is local, or not there, use it */
aformat = dip->di_core.di_aformat;
if ((XFS_CFORK_Q(&dip->di_core) == 0) ||
if ((XFS_DFORK_Q(dip) == 0) ||
(aformat == XFS_DINODE_FMT_LOCAL) ||
(aformat == XFS_DINODE_FMT_EXTENTS && !dip->di_core.di_anextents)) {
*dipp = dip;
@ -399,7 +399,7 @@ xfs_bulkstat(
(XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog);
nimask = ~(nicluster - 1);
nbcluster = nicluster >> mp->m_sb.sb_inopblog;
irbuf = kmem_zalloc_greedy(&irbsize, NBPC, NBPC * 4,
irbuf = kmem_zalloc_greedy(&irbsize, PAGE_SIZE, PAGE_SIZE * 4,
KM_SLEEP | KM_MAYFAIL | KM_LARGE);
nirbuf = irbsize / sizeof(*irbuf);
@ -830,7 +830,7 @@ xfs_inumbers(
agino = XFS_INO_TO_AGINO(mp, ino);
left = *count;
*count = 0;
bcount = MIN(left, (int)(NBPP / sizeof(*buffer)));
bcount = MIN(left, (int)(PAGE_SIZE / sizeof(*buffer)));
buffer = kmem_alloc(bcount * sizeof(*buffer), KM_SLEEP);
error = bufidx = 0;
cur = NULL;

404
fs/xfs/xfs_log.c
Просмотреть файл

Разница между файлами не показана из-за своего большого размера Загрузить разницу

3
fs/xfs/xfs_log.h
Просмотреть файл

@ -22,8 +22,9 @@
#define CYCLE_LSN(lsn) ((uint)((lsn)>>32))
#define BLOCK_LSN(lsn) ((uint)(lsn))
/* this is used in a spot where we might otherwise double-endian-flip */
#define CYCLE_LSN_DISK(lsn) (((uint *)&(lsn))[0])
#define CYCLE_LSN_DISK(lsn) (((__be32 *)&(lsn))[0])
#ifdef __KERNEL__
/*

90
fs/xfs/xfs_log_priv.h
Просмотреть файл

@ -55,33 +55,22 @@ struct xfs_mount;
BTOBB(XLOG_MAX_ICLOGS << (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? \
XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
/*
* set lsns
*/
#define ASSIGN_ANY_LSN_HOST(lsn,cycle,block) \
{ \
(lsn) = ((xfs_lsn_t)(cycle)<<32)|(block); \
static inline xfs_lsn_t xlog_assign_lsn(uint cycle, uint block)
{
return ((xfs_lsn_t)cycle << 32) | block;
}
#define ASSIGN_ANY_LSN_DISK(lsn,cycle,block) \
{ \
INT_SET(((uint *)&(lsn))[0], ARCH_CONVERT, (cycle)); \
INT_SET(((uint *)&(lsn))[1], ARCH_CONVERT, (block)); \
static inline uint xlog_get_cycle(char *ptr)
{
if (be32_to_cpu(*(__be32 *)ptr) == XLOG_HEADER_MAGIC_NUM)
return be32_to_cpu(*((__be32 *)ptr + 1));
else
return be32_to_cpu(*(__be32 *)ptr);
}
#define ASSIGN_LSN(lsn,log) \
ASSIGN_ANY_LSN_DISK(lsn,(log)->l_curr_cycle,(log)->l_curr_block);
#define XLOG_SET(f,b) (((f) & (b)) == (b))
#define GET_CYCLE(ptr, arch) \
(INT_GET(*(uint *)(ptr), arch) == XLOG_HEADER_MAGIC_NUM ? \
INT_GET(*((uint *)(ptr)+1), arch) : \
INT_GET(*(uint *)(ptr), arch) \
)
#define BLK_AVG(blk1, blk2) ((blk1+blk2) >> 1)
#ifdef __KERNEL__
/*
@ -96,19 +85,10 @@ struct xfs_mount;
*
* this has endian issues, of course.
*/
#ifndef XFS_NATIVE_HOST
#define GET_CLIENT_ID(i,arch) \
((i) & 0xff)
#else
#define GET_CLIENT_ID(i,arch) \
((i) >> 24)
#endif
#define GRANT_LOCK(log) mutex_spinlock(&(log)->l_grant_lock)
#define GRANT_UNLOCK(log, s) mutex_spinunlock(&(log)->l_grant_lock, s)
#define LOG_LOCK(log) mutex_spinlock(&(log)->l_icloglock)
#define LOG_UNLOCK(log, s) mutex_spinunlock(&(log)->l_icloglock, s)
static inline uint xlog_get_client_id(__be32 i)
{
return be32_to_cpu(i) >> 24;
}
#define xlog_panic(args...) cmn_err(CE_PANIC, ## args)
#define xlog_exit(args...) cmn_err(CE_PANIC, ## args)
@ -285,11 +265,11 @@ typedef struct xlog_ticket {
typedef struct xlog_op_header {
xlog_tid_t oh_tid; /* transaction id of operation : 4 b */
int oh_len; /* bytes in data region : 4 b */
__uint8_t oh_clientid; /* who sent me this : 1 b */
__uint8_t oh_flags; /* : 1 b */
ushort oh_res2; /* 32 bit align : 2 b */
__be32 oh_tid; /* transaction id of operation : 4 b */
__be32 oh_len; /* bytes in data region : 4 b */
__u8 oh_clientid; /* who sent me this : 1 b */
__u8 oh_flags; /* : 1 b */
__u16 oh_res2; /* 32 bit align : 2 b */
} xlog_op_header_t;
@ -307,25 +287,25 @@ typedef struct xlog_op_header {
#endif
typedef struct xlog_rec_header {
uint h_magicno; /* log record (LR) identifier : 4 */
uint h_cycle; /* write cycle of log : 4 */
int h_version; /* LR version : 4 */
int h_len; /* len in bytes; should be 64-bit aligned: 4 */
xfs_lsn_t h_lsn; /* lsn of this LR : 8 */
xfs_lsn_t h_tail_lsn; /* lsn of 1st LR w/ buffers not committed: 8 */
uint h_chksum; /* may not be used; non-zero if used : 4 */
int h_prev_block; /* block number to previous LR : 4 */
int h_num_logops; /* number of log operations in this LR : 4 */
uint h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE];
__be32 h_magicno; /* log record (LR) identifier : 4 */
__be32 h_cycle; /* write cycle of log : 4 */
__be32 h_version; /* LR version : 4 */
__be32 h_len; /* len in bytes; should be 64-bit aligned: 4 */
__be64 h_lsn; /* lsn of this LR : 8 */
__be64 h_tail_lsn; /* lsn of 1st LR w/ buffers not committed: 8 */
__be32 h_chksum; /* may not be used; non-zero if used : 4 */
__be32 h_prev_block; /* block number to previous LR : 4 */
__be32 h_num_logops; /* number of log operations in this LR : 4 */
__be32 h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE];
/* new fields */
int h_fmt; /* format of log record : 4 */
__be32 h_fmt; /* format of log record : 4 */
uuid_t h_fs_uuid; /* uuid of FS : 16 */
int h_size; /* iclog size : 4 */
__be32 h_size; /* iclog size : 4 */
} xlog_rec_header_t;
typedef struct xlog_rec_ext_header {
uint xh_cycle; /* write cycle of log : 4 */
uint xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /* : 256 */
__be32 xh_cycle; /* write cycle of log : 4 */
__be32 xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /* : 256 */
} xlog_rec_ext_header_t;
#ifdef __KERNEL__
@ -415,7 +395,7 @@ typedef struct log {
xlog_ticket_t *l_unmount_free;/* kmem_free these addresses */
xlog_ticket_t *l_tail; /* free list of tickets */
xlog_in_core_t *l_iclog; /* head log queue */
lock_t l_icloglock; /* grab to change iclog state */
spinlock_t l_icloglock; /* grab to change iclog state */
xfs_lsn_t l_tail_lsn; /* lsn of 1st LR with unflushed
* buffers */
xfs_lsn_t l_last_sync_lsn;/* lsn of last LR on disk */
@ -439,7 +419,7 @@ typedef struct log {
char *l_iclog_bak[XLOG_MAX_ICLOGS];
/* The following block of fields are changed while holding grant_lock */
lock_t l_grant_lock;
spinlock_t l_grant_lock;
xlog_ticket_t *l_reserve_headq;
xlog_ticket_t *l_write_headq;
int l_grant_reserve_cycle;

193
fs/xfs/xfs_log_recover.c
Просмотреть файл

@ -198,7 +198,7 @@ xlog_header_check_dump(
cmn_err(CE_DEBUG, " log : uuid = ");
for (b = 0; b < 16; b++)
cmn_err(CE_DEBUG, "%02x",((uchar_t *)&head->h_fs_uuid)[b]);
cmn_err(CE_DEBUG, ", fmt = %d\n", INT_GET(head->h_fmt, ARCH_CONVERT));
cmn_err(CE_DEBUG, ", fmt = %d\n", be32_to_cpu(head->h_fmt));
}
#else
#define xlog_header_check_dump(mp, head)
@ -212,14 +212,14 @@ xlog_header_check_recover(
xfs_mount_t *mp,
xlog_rec_header_t *head)
{
ASSERT(INT_GET(head->h_magicno, ARCH_CONVERT) == XLOG_HEADER_MAGIC_NUM);
ASSERT(be32_to_cpu(head->h_magicno) == XLOG_HEADER_MAGIC_NUM);
/*
* IRIX doesn't write the h_fmt field and leaves it zeroed
* (XLOG_FMT_UNKNOWN). This stops us from trying to recover
* a dirty log created in IRIX.
*/
if (unlikely(INT_GET(head->h_fmt, ARCH_CONVERT) != XLOG_FMT)) {
if (unlikely(be32_to_cpu(head->h_fmt) != XLOG_FMT)) {
xlog_warn(
"XFS: dirty log written in incompatible format - can't recover");
xlog_header_check_dump(mp, head);
@ -245,7 +245,7 @@ xlog_header_check_mount(
xfs_mount_t *mp,
xlog_rec_header_t *head)
{
ASSERT(INT_GET(head->h_magicno, ARCH_CONVERT) == XLOG_HEADER_MAGIC_NUM);
ASSERT(be32_to_cpu(head->h_magicno) == XLOG_HEADER_MAGIC_NUM);
if (uuid_is_nil(&head->h_fs_uuid)) {
/*
@ -293,7 +293,7 @@ xlog_recover_iodone(
* Note that the algorithm can not be perfect because the disk will not
* necessarily be perfect.
*/
int
STATIC int
xlog_find_cycle_start(
xlog_t *log,
xfs_buf_t *bp,
@ -311,7 +311,7 @@ xlog_find_cycle_start(
if ((error = xlog_bread(log, mid_blk, 1, bp)))
return error;
offset = xlog_align(log, mid_blk, 1, bp);
mid_cycle = GET_CYCLE(offset, ARCH_CONVERT);
mid_cycle = xlog_get_cycle(offset);
if (mid_cycle == cycle) {
*last_blk = mid_blk;
/* last_half_cycle == mid_cycle */
@ -371,7 +371,7 @@ xlog_find_verify_cycle(
buf = xlog_align(log, i, bcount, bp);
for (j = 0; j < bcount; j++) {
cycle = GET_CYCLE(buf, ARCH_CONVERT);
cycle = xlog_get_cycle(buf);
if (cycle == stop_on_cycle_no) {
*new_blk = i+j;
goto out;
@ -447,8 +447,7 @@ xlog_find_verify_log_record(
head = (xlog_rec_header_t *)offset;
if (XLOG_HEADER_MAGIC_NUM ==
INT_GET(head->h_magicno, ARCH_CONVERT))
if (XLOG_HEADER_MAGIC_NUM == be32_to_cpu(head->h_magicno))
break;
if (!smallmem)
@ -480,7 +479,7 @@ xlog_find_verify_log_record(
* record do we update last_blk.
*/
if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
uint h_size = INT_GET(head->h_size, ARCH_CONVERT);
uint h_size = be32_to_cpu(head->h_size);
xhdrs = h_size / XLOG_HEADER_CYCLE_SIZE;
if (h_size % XLOG_HEADER_CYCLE_SIZE)
@ -489,8 +488,8 @@ xlog_find_verify_log_record(
xhdrs = 1;
}
if (*last_blk - i + extra_bblks
!= BTOBB(INT_GET(head->h_len, ARCH_CONVERT)) + xhdrs)
if (*last_blk - i + extra_bblks !=
BTOBB(be32_to_cpu(head->h_len)) + xhdrs)
*last_blk = i;
out:
@ -550,13 +549,13 @@ xlog_find_head(
if ((error = xlog_bread(log, 0, 1, bp)))
goto bp_err;
offset = xlog_align(log, 0, 1, bp);
first_half_cycle = GET_CYCLE(offset, ARCH_CONVERT);
first_half_cycle = xlog_get_cycle(offset);
last_blk = head_blk = log_bbnum - 1; /* get cycle # of last block */
if ((error = xlog_bread(log, last_blk, 1, bp)))
goto bp_err;
offset = xlog_align(log, last_blk, 1, bp);
last_half_cycle = GET_CYCLE(offset, ARCH_CONVERT);
last_half_cycle = xlog_get_cycle(offset);
ASSERT(last_half_cycle != 0);
/*
@ -808,7 +807,7 @@ xlog_find_tail(
if ((error = xlog_bread(log, 0, 1, bp)))
goto bread_err;
offset = xlog_align(log, 0, 1, bp);
if (GET_CYCLE(offset, ARCH_CONVERT) == 0) {
if (xlog_get_cycle(offset) == 0) {
*tail_blk = 0;
/* leave all other log inited values alone */
goto exit;
@ -823,8 +822,7 @@ xlog_find_tail(
if ((error = xlog_bread(log, i, 1, bp)))
goto bread_err;
offset = xlog_align(log, i, 1, bp);
if (XLOG_HEADER_MAGIC_NUM ==
INT_GET(*(uint *)offset, ARCH_CONVERT)) {
if (XLOG_HEADER_MAGIC_NUM == be32_to_cpu(*(__be32 *)offset)) {
found = 1;
break;
}
@ -841,7 +839,7 @@ xlog_find_tail(
goto bread_err;
offset = xlog_align(log, i, 1, bp);
if (XLOG_HEADER_MAGIC_NUM ==
INT_GET(*(uint*)offset, ARCH_CONVERT)) {
be32_to_cpu(*(__be32 *)offset)) {
found = 2;
break;
}
@ -855,7 +853,7 @@ xlog_find_tail(
/* find blk_no of tail of log */
rhead = (xlog_rec_header_t *)offset;
*tail_blk = BLOCK_LSN(INT_GET(rhead->h_tail_lsn, ARCH_CONVERT));
*tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn));
/*
* Reset log values according to the state of the log when we
@ -869,11 +867,11 @@ xlog_find_tail(
*/
log->l_prev_block = i;
log->l_curr_block = (int)*head_blk;
log->l_curr_cycle = INT_GET(rhead->h_cycle, ARCH_CONVERT);
log->l_curr_cycle = be32_to_cpu(rhead->h_cycle);
if (found == 2)
log->l_curr_cycle++;
log->l_tail_lsn = INT_GET(rhead->h_tail_lsn, ARCH_CONVERT);
log->l_last_sync_lsn = INT_GET(rhead->h_lsn, ARCH_CONVERT);
log->l_tail_lsn = be64_to_cpu(rhead->h_tail_lsn);
log->l_last_sync_lsn = be64_to_cpu(rhead->h_lsn);
log->l_grant_reserve_cycle = log->l_curr_cycle;
log->l_grant_reserve_bytes = BBTOB(log->l_curr_block);
log->l_grant_write_cycle = log->l_curr_cycle;
@ -891,8 +889,8 @@ xlog_find_tail(
* unmount record rather than the block after it.
*/
if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
int h_size = INT_GET(rhead->h_size, ARCH_CONVERT);
int h_version = INT_GET(rhead->h_version, ARCH_CONVERT);
int h_size = be32_to_cpu(rhead->h_size);
int h_version = be32_to_cpu(rhead->h_version);
if ((h_version & XLOG_VERSION_2) &&
(h_size > XLOG_HEADER_CYCLE_SIZE)) {
@ -906,10 +904,10 @@ xlog_find_tail(
hblks = 1;
}
after_umount_blk = (i + hblks + (int)
BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT))) % log->l_logBBsize;
BTOBB(be32_to_cpu(rhead->h_len))) % log->l_logBBsize;
tail_lsn = log->l_tail_lsn;
if (*head_blk == after_umount_blk &&
INT_GET(rhead->h_num_logops, ARCH_CONVERT) == 1) {
be32_to_cpu(rhead->h_num_logops) == 1) {
umount_data_blk = (i + hblks) % log->l_logBBsize;
if ((error = xlog_bread(log, umount_data_blk, 1, bp))) {
goto bread_err;
@ -922,9 +920,11 @@ xlog_find_tail(
* log records will point recovery to after the
* current unmount record.
*/
ASSIGN_ANY_LSN_HOST(log->l_tail_lsn, log->l_curr_cycle,
log->l_tail_lsn =
xlog_assign_lsn(log->l_curr_cycle,
after_umount_blk);
ASSIGN_ANY_LSN_HOST(log->l_last_sync_lsn, log->l_curr_cycle,
log->l_last_sync_lsn =
xlog_assign_lsn(log->l_curr_cycle,
after_umount_blk);
*tail_blk = after_umount_blk;
@ -986,7 +986,7 @@ exit:
* -1 => use *blk_no as the first block of the log
* >0 => error has occurred
*/
int
STATIC int
xlog_find_zeroed(
xlog_t *log,
xfs_daddr_t *blk_no)
@ -1007,7 +1007,7 @@ xlog_find_zeroed(
if ((error = xlog_bread(log, 0, 1, bp)))
goto bp_err;
offset = xlog_align(log, 0, 1, bp);
first_cycle = GET_CYCLE(offset, ARCH_CONVERT);
first_cycle = xlog_get_cycle(offset);
if (first_cycle == 0) { /* completely zeroed log */
*blk_no = 0;
xlog_put_bp(bp);
@ -1018,7 +1018,7 @@ xlog_find_zeroed(
if ((error = xlog_bread(log, log_bbnum-1, 1, bp)))
goto bp_err;
offset = xlog_align(log, log_bbnum-1, 1, bp);
last_cycle = GET_CYCLE(offset, ARCH_CONVERT);
last_cycle = xlog_get_cycle(offset);
if (last_cycle != 0) { /* log completely written to */
xlog_put_bp(bp);
return 0;
@ -1098,13 +1098,13 @@ xlog_add_record(
xlog_rec_header_t *recp = (xlog_rec_header_t *)buf;
memset(buf, 0, BBSIZE);
INT_SET(recp->h_magicno, ARCH_CONVERT, XLOG_HEADER_MAGIC_NUM);
INT_SET(recp->h_cycle, ARCH_CONVERT, cycle);
INT_SET(recp->h_version, ARCH_CONVERT,
recp->h_magicno = cpu_to_be32(XLOG_HEADER_MAGIC_NUM);
recp->h_cycle = cpu_to_be32(cycle);
recp->h_version = cpu_to_be32(
XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? 2 : 1);
ASSIGN_ANY_LSN_DISK(recp->h_lsn, cycle, block);
ASSIGN_ANY_LSN_DISK(recp->h_tail_lsn, tail_cycle, tail_block);
INT_SET(recp->h_fmt, ARCH_CONVERT, XLOG_FMT);
recp->h_lsn = cpu_to_be64(xlog_assign_lsn(cycle, block));
recp->h_tail_lsn = cpu_to_be64(xlog_assign_lsn(tail_cycle, tail_block));
recp->h_fmt = cpu_to_be32(XLOG_FMT);
memcpy(&recp->h_fs_uuid, &log->l_mp->m_sb.sb_uuid, sizeof(uuid_t));
}
@ -2211,7 +2211,7 @@ xlog_recover_do_buffer_trans(
* overlap with future reads of those inodes.
*/
if (XFS_DINODE_MAGIC ==
INT_GET(*((__uint16_t *)(xfs_buf_offset(bp, 0))), ARCH_CONVERT) &&
be16_to_cpu(*((__be16 *)xfs_buf_offset(bp, 0))) &&
(XFS_BUF_COUNT(bp) != MAX(log->l_mp->m_sb.sb_blocksize,
(__uint32_t)XFS_INODE_CLUSTER_SIZE(log->l_mp)))) {
XFS_BUF_STALE(bp);
@ -2581,8 +2581,7 @@ xlog_recover_do_dquot_trans(
/*
* This type of quotas was turned off, so ignore this record.
*/
type = INT_GET(recddq->d_flags, ARCH_CONVERT) &
(XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
type = recddq->d_flags & (XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
ASSERT(type);
if (log->l_quotaoffs_flag & type)
return (0);
@ -2660,7 +2659,6 @@ xlog_recover_do_efi_trans(
xfs_mount_t *mp;
xfs_efi_log_item_t *efip;
xfs_efi_log_format_t *efi_formatp;
SPLDECL(s);
if (pass == XLOG_RECOVER_PASS1) {
return 0;
@ -2678,11 +2676,11 @@ xlog_recover_do_efi_trans(
efip->efi_next_extent = efi_formatp->efi_nextents;
efip->efi_flags |= XFS_EFI_COMMITTED;
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
/*
* xfs_trans_update_ail() drops the AIL lock.
*/
xfs_trans_update_ail(mp, (xfs_log_item_t *)efip, lsn, s);
xfs_trans_update_ail(mp, (xfs_log_item_t *)efip, lsn);
return 0;
}
@ -2707,7 +2705,6 @@ xlog_recover_do_efd_trans(
xfs_log_item_t *lip;
int gen;
__uint64_t efi_id;
SPLDECL(s);
if (pass == XLOG_RECOVER_PASS1) {
return;
@ -2725,7 +2722,7 @@ xlog_recover_do_efd_trans(
* in the AIL.
*/
mp = log->l_mp;
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
lip = xfs_trans_first_ail(mp, &gen);
while (lip != NULL) {
if (lip->li_type == XFS_LI_EFI) {
@ -2735,22 +2732,14 @@ xlog_recover_do_efd_trans(
* xfs_trans_delete_ail() drops the
* AIL lock.
*/
xfs_trans_delete_ail(mp, lip, s);
break;
xfs_trans_delete_ail(mp, lip);
xfs_efi_item_free(efip);
return;
}
}
lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
}
/*
* If we found it, then free it up. If it wasn't there, it
* must have been overwritten in the log. Oh well.
*/
if (lip != NULL) {
xfs_efi_item_free(efip);
} else {
AIL_UNLOCK(mp, s);
}
spin_unlock(&mp->m_ail_lock);
}
/*
@ -2897,8 +2886,8 @@ xlog_recover_process_data(
unsigned long hash;
uint flags;
lp = dp + INT_GET(rhead->h_len, ARCH_CONVERT);
num_logops = INT_GET(rhead->h_num_logops, ARCH_CONVERT);
lp = dp + be32_to_cpu(rhead->h_len);
num_logops = be32_to_cpu(rhead->h_num_logops);
/* check the log format matches our own - else we can't recover */
if (xlog_header_check_recover(log->l_mp, rhead))
@ -2915,15 +2904,20 @@ xlog_recover_process_data(
ASSERT(0);
return (XFS_ERROR(EIO));
}
tid = INT_GET(ohead->oh_tid, ARCH_CONVERT);
tid = be32_to_cpu(ohead->oh_tid);
hash = XLOG_RHASH(tid);
trans = xlog_recover_find_tid(rhash[hash], tid);
if (trans == NULL) { /* not found; add new tid */
if (ohead->oh_flags & XLOG_START_TRANS)
xlog_recover_new_tid(&rhash[hash], tid,
INT_GET(rhead->h_lsn, ARCH_CONVERT));
be64_to_cpu(rhead->h_lsn));
} else {
ASSERT(dp+INT_GET(ohead->oh_len, ARCH_CONVERT) <= lp);
if (dp + be32_to_cpu(ohead->oh_len) > lp) {
xlog_warn(
"XFS: xlog_recover_process_data: bad length");
WARN_ON(1);
return (XFS_ERROR(EIO));
}
flags = ohead->oh_flags & ~XLOG_END_TRANS;
if (flags & XLOG_WAS_CONT_TRANS)
flags &= ~XLOG_CONTINUE_TRANS;
@ -2937,8 +2931,7 @@ xlog_recover_process_data(
break;
case XLOG_WAS_CONT_TRANS:
error = xlog_recover_add_to_cont_trans(trans,
dp, INT_GET(ohead->oh_len,
ARCH_CONVERT));
dp, be32_to_cpu(ohead->oh_len));
break;
case XLOG_START_TRANS:
xlog_warn(
@ -2949,8 +2942,7 @@ xlog_recover_process_data(
case 0:
case XLOG_CONTINUE_TRANS:
error = xlog_recover_add_to_trans(trans,
dp, INT_GET(ohead->oh_len,
ARCH_CONVERT));
dp, be32_to_cpu(ohead->oh_len));
break;
default:
xlog_warn(
@ -2962,7 +2954,7 @@ xlog_recover_process_data(
if (error)
return error;
}
dp += INT_GET(ohead->oh_len, ARCH_CONVERT);
dp += be32_to_cpu(ohead->oh_len);
num_logops--;
}
return 0;
@ -3075,10 +3067,9 @@ xlog_recover_process_efis(
xfs_efi_log_item_t *efip;
int gen;
xfs_mount_t *mp;
SPLDECL(s);
mp = log->l_mp;
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
lip = xfs_trans_first_ail(mp, &gen);
while (lip != NULL) {
@ -3099,12 +3090,12 @@ xlog_recover_process_efis(
continue;
}
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
xlog_recover_process_efi(mp, efip);
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
}
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
/*
@ -3315,16 +3306,16 @@ xlog_pack_data_checksum(
int size)
{
int i;
uint *up;
__be32 *up;
uint chksum = 0;
up = (uint *)iclog->ic_datap;
up = (__be32 *)iclog->ic_datap;
/* divide length by 4 to get # words */
for (i = 0; i < (size >> 2); i++) {
chksum ^= INT_GET(*up, ARCH_CONVERT);
chksum ^= be32_to_cpu(*up);
up++;
}
INT_SET(iclog->ic_header.h_chksum, ARCH_CONVERT, chksum);
iclog->ic_header.h_chksum = cpu_to_be32(chksum);
}
#else
#define xlog_pack_data_checksum(log, iclog, size)
@ -3341,7 +3332,7 @@ xlog_pack_data(
{
int i, j, k;
int size = iclog->ic_offset + roundoff;
uint cycle_lsn;
__be32 cycle_lsn;
xfs_caddr_t dp;
xlog_in_core_2_t *xhdr;
@ -3352,8 +3343,8 @@ xlog_pack_data(
dp = iclog->ic_datap;
for (i = 0; i < BTOBB(size) &&
i < (XLOG_HEADER_CYCLE_SIZE / BBSIZE); i++) {
iclog->ic_header.h_cycle_data[i] = *(uint *)dp;
*(uint *)dp = cycle_lsn;
iclog->ic_header.h_cycle_data[i] = *(__be32 *)dp;
*(__be32 *)dp = cycle_lsn;
dp += BBSIZE;
}
@ -3362,8 +3353,8 @@ xlog_pack_data(
for ( ; i < BTOBB(size); i++) {
j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
k = i % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
xhdr[j].hic_xheader.xh_cycle_data[k] = *(uint *)dp;
*(uint *)dp = cycle_lsn;
xhdr[j].hic_xheader.xh_cycle_data[k] = *(__be32 *)dp;
*(__be32 *)dp = cycle_lsn;
dp += BBSIZE;
}
@ -3380,21 +3371,21 @@ xlog_unpack_data_checksum(
xfs_caddr_t dp,
xlog_t *log)
{
uint *up = (uint *)dp;
__be32 *up = (__be32 *)dp;
uint chksum = 0;
int i;
/* divide length by 4 to get # words */
for (i=0; i < INT_GET(rhead->h_len, ARCH_CONVERT) >> 2; i++) {
chksum ^= INT_GET(*up, ARCH_CONVERT);
for (i=0; i < be32_to_cpu(rhead->h_len) >> 2; i++) {
chksum ^= be32_to_cpu(*up);
up++;
}
if (chksum != INT_GET(rhead->h_chksum, ARCH_CONVERT)) {
if (chksum != be32_to_cpu(rhead->h_chksum)) {
if (rhead->h_chksum ||
((log->l_flags & XLOG_CHKSUM_MISMATCH) == 0)) {
cmn_err(CE_DEBUG,
"XFS: LogR chksum mismatch: was (0x%x) is (0x%x)\n",
INT_GET(rhead->h_chksum, ARCH_CONVERT), chksum);
be32_to_cpu(rhead->h_chksum), chksum);
cmn_err(CE_DEBUG,
"XFS: Disregard message if filesystem was created with non-DEBUG kernel");
if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
@ -3418,18 +3409,18 @@ xlog_unpack_data(
int i, j, k;
xlog_in_core_2_t *xhdr;
for (i = 0; i < BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT)) &&
for (i = 0; i < BTOBB(be32_to_cpu(rhead->h_len)) &&
i < (XLOG_HEADER_CYCLE_SIZE / BBSIZE); i++) {
*(uint *)dp = *(uint *)&rhead->h_cycle_data[i];
*(__be32 *)dp = *(__be32 *)&rhead->h_cycle_data[i];
dp += BBSIZE;
}
if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
xhdr = (xlog_in_core_2_t *)rhead;
for ( ; i < BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT)); i++) {
for ( ; i < BTOBB(be32_to_cpu(rhead->h_len)); i++) {
j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
k = i % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
*(uint *)dp = xhdr[j].hic_xheader.xh_cycle_data[k];
*(__be32 *)dp = xhdr[j].hic_xheader.xh_cycle_data[k];
dp += BBSIZE;
}
}
@ -3445,24 +3436,21 @@ xlog_valid_rec_header(
{
int hlen;
if (unlikely(
(INT_GET(rhead->h_magicno, ARCH_CONVERT) !=
XLOG_HEADER_MAGIC_NUM))) {
if (unlikely(be32_to_cpu(rhead->h_magicno) != XLOG_HEADER_MAGIC_NUM)) {
XFS_ERROR_REPORT("xlog_valid_rec_header(1)",
XFS_ERRLEVEL_LOW, log->l_mp);
return XFS_ERROR(EFSCORRUPTED);
}
if (unlikely(
(!rhead->h_version ||
(INT_GET(rhead->h_version, ARCH_CONVERT) &
(~XLOG_VERSION_OKBITS)) != 0))) {
(be32_to_cpu(rhead->h_version) & (~XLOG_VERSION_OKBITS))))) {
xlog_warn("XFS: %s: unrecognised log version (%d).",
__FUNCTION__, INT_GET(rhead->h_version, ARCH_CONVERT));
__FUNCTION__, be32_to_cpu(rhead->h_version));
return XFS_ERROR(EIO);
}
/* LR body must have data or it wouldn't have been written */
hlen = INT_GET(rhead->h_len, ARCH_CONVERT);
hlen = be32_to_cpu(rhead->h_len);
if (unlikely( hlen <= 0 || hlen > INT_MAX )) {
XFS_ERROR_REPORT("xlog_valid_rec_header(2)",
XFS_ERRLEVEL_LOW, log->l_mp);
@ -3522,9 +3510,8 @@ xlog_do_recovery_pass(
error = xlog_valid_rec_header(log, rhead, tail_blk);
if (error)
goto bread_err1;
h_size = INT_GET(rhead->h_size, ARCH_CONVERT);
if ((INT_GET(rhead->h_version, ARCH_CONVERT)
& XLOG_VERSION_2) &&
h_size = be32_to_cpu(rhead->h_size);
if ((be32_to_cpu(rhead->h_version) & XLOG_VERSION_2) &&
(h_size > XLOG_HEADER_CYCLE_SIZE)) {
hblks = h_size / XLOG_HEADER_CYCLE_SIZE;
if (h_size % XLOG_HEADER_CYCLE_SIZE)
@ -3561,7 +3548,7 @@ xlog_do_recovery_pass(
goto bread_err2;
/* blocks in data section */
bblks = (int)BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT));
bblks = (int)BTOBB(be32_to_cpu(rhead->h_len));
error = xlog_bread(log, blk_no + hblks, bblks, dbp);
if (error)
goto bread_err2;
@ -3636,7 +3623,7 @@ xlog_do_recovery_pass(
if (error)
goto bread_err2;
bblks = (int)BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT));
bblks = (int)BTOBB(be32_to_cpu(rhead->h_len));
blk_no += hblks;
/* Read in data for log record */
@ -3707,7 +3694,7 @@ xlog_do_recovery_pass(
error = xlog_valid_rec_header(log, rhead, blk_no);
if (error)
goto bread_err2;
bblks = (int)BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT));
bblks = (int)BTOBB(be32_to_cpu(rhead->h_len));
if ((error = xlog_bread(log, blk_no+hblks, bblks, dbp)))
goto bread_err2;
offset = xlog_align(log, blk_no+hblks, bblks, dbp);

314
fs/xfs/xfs_mount.c
Просмотреть файл

@ -136,15 +136,9 @@ xfs_mount_init(void)
mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB;
}
AIL_LOCKINIT(&mp->m_ail_lock, "xfs_ail");
spinlock_init(&mp->m_sb_lock, "xfs_sb");
spin_lock_init(&mp->m_sb_lock);
mutex_init(&mp->m_ilock);
mutex_init(&mp->m_growlock);
/*
* Initialize the AIL.
*/
xfs_trans_ail_init(mp);
atomic_set(&mp->m_active_trans, 0);
return mp;
@ -171,7 +165,7 @@ xfs_mount_free(
sizeof(xfs_perag_t) * mp->m_sb.sb_agcount);
}
AIL_LOCK_DESTROY(&mp->m_ail_lock);
spinlock_destroy(&mp->m_ail_lock);
spinlock_destroy(&mp->m_sb_lock);
mutex_destroy(&mp->m_ilock);
mutex_destroy(&mp->m_growlock);
@ -616,7 +610,7 @@ xfs_mount_common(xfs_mount_t *mp, xfs_sb_t *sbp)
int i;
mp->m_agfrotor = mp->m_agirotor = 0;
spinlock_init(&mp->m_agirotor_lock, "m_agirotor_lock");
spin_lock_init(&mp->m_agirotor_lock);
mp->m_maxagi = mp->m_sb.sb_agcount;
mp->m_blkbit_log = sbp->sb_blocklog + XFS_NBBYLOG;
mp->m_blkbb_log = sbp->sb_blocklog - BBSHIFT;
@ -696,7 +690,6 @@ xfs_initialize_perag_data(xfs_mount_t *mp, xfs_agnumber_t agcount)
uint64_t bfreelst = 0;
uint64_t btree = 0;
int error;
int s;
for (index = 0; index < agcount; index++) {
/*
@ -721,11 +714,11 @@ xfs_initialize_perag_data(xfs_mount_t *mp, xfs_agnumber_t agcount)
/*
* Overwrite incore superblock counters with just-read data
*/
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
sbp->sb_ifree = ifree;
sbp->sb_icount = ialloc;
sbp->sb_fdblocks = bfree + bfreelst + btree;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
/* Fixup the per-cpu counters as well. */
xfs_icsb_reinit_counters(mp);
@ -734,49 +727,13 @@ xfs_initialize_perag_data(xfs_mount_t *mp, xfs_agnumber_t agcount)
}
/*
* xfs_mountfs
*
* This function does the following on an initial mount of a file system:
* - reads the superblock from disk and init the mount struct
* - if we're a 32-bit kernel, do a size check on the superblock
* so we don't mount terabyte filesystems
* - init mount struct realtime fields
* - allocate inode hash table for fs
* - init directory manager
* - perform recovery and init the log manager
* Update alignment values based on mount options and sb values
*/
int
xfs_mountfs(
xfs_mount_t *mp,
int mfsi_flags)
STATIC int
xfs_update_alignment(xfs_mount_t *mp, int mfsi_flags, __uint64_t *update_flags)
{
xfs_buf_t *bp;
xfs_sb_t *sbp = &(mp->m_sb);
xfs_inode_t *rip;
bhv_vnode_t *rvp = NULL;
int readio_log, writeio_log;
xfs_daddr_t d;
__uint64_t resblks;
__int64_t update_flags;
uint quotamount, quotaflags;
int agno;
int uuid_mounted = 0;
int error = 0;
if (mp->m_sb_bp == NULL) {
if ((error = xfs_readsb(mp, mfsi_flags))) {
return error;
}
}
xfs_mount_common(mp, sbp);
/*
* Check if sb_agblocks is aligned at stripe boundary
* If sb_agblocks is NOT aligned turn off m_dalign since
* allocator alignment is within an ag, therefore ag has
* to be aligned at stripe boundary.
*/
update_flags = 0LL;
if (mp->m_dalign && !(mfsi_flags & XFS_MFSI_SECOND)) {
/*
* If stripe unit and stripe width are not multiples
@ -787,8 +744,7 @@ xfs_mountfs(
if (mp->m_flags & XFS_MOUNT_RETERR) {
cmn_err(CE_WARN,
"XFS: alignment check 1 failed");
error = XFS_ERROR(EINVAL);
goto error1;
return XFS_ERROR(EINVAL);
}
mp->m_dalign = mp->m_swidth = 0;
} else {
@ -798,8 +754,7 @@ xfs_mountfs(
mp->m_dalign = XFS_BB_TO_FSBT(mp, mp->m_dalign);
if (mp->m_dalign && (sbp->sb_agblocks % mp->m_dalign)) {
if (mp->m_flags & XFS_MOUNT_RETERR) {
error = XFS_ERROR(EINVAL);
goto error1;
return XFS_ERROR(EINVAL);
}
xfs_fs_cmn_err(CE_WARN, mp,
"stripe alignment turned off: sunit(%d)/swidth(%d) incompatible with agsize(%d)",
@ -816,8 +771,7 @@ xfs_mountfs(
"stripe alignment turned off: sunit(%d) less than bsize(%d)",
mp->m_dalign,
mp->m_blockmask +1);
error = XFS_ERROR(EINVAL);
goto error1;
return XFS_ERROR(EINVAL);
}
mp->m_swidth = 0;
}
@ -830,11 +784,11 @@ xfs_mountfs(
if (XFS_SB_VERSION_HASDALIGN(sbp)) {
if (sbp->sb_unit != mp->m_dalign) {
sbp->sb_unit = mp->m_dalign;
update_flags |= XFS_SB_UNIT;
*update_flags |= XFS_SB_UNIT;
}
if (sbp->sb_width != mp->m_swidth) {
sbp->sb_width = mp->m_swidth;
update_flags |= XFS_SB_WIDTH;
*update_flags |= XFS_SB_WIDTH;
}
}
} else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
@ -843,41 +797,31 @@ xfs_mountfs(
mp->m_swidth = sbp->sb_width;
}
xfs_alloc_compute_maxlevels(mp);
xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK);
xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK);
xfs_ialloc_compute_maxlevels(mp);
return 0;
}
if (sbp->sb_imax_pct) {
/*
* Set the maximum inode count for this filesystem
*/
STATIC void
xfs_set_maxicount(xfs_mount_t *mp)
{
xfs_sb_t *sbp = &(mp->m_sb);
__uint64_t icount;
/* Make sure the maximum inode count is a multiple of the
* units we allocate inodes in.
if (sbp->sb_imax_pct) {
/*
* Make sure the maximum inode count is a multiple
* of the units we allocate inodes in.
*/
icount = sbp->sb_dblocks * sbp->sb_imax_pct;
do_div(icount, 100);
do_div(icount, mp->m_ialloc_blks);
mp->m_maxicount = (icount * mp->m_ialloc_blks) <<
sbp->sb_inopblog;
} else
} else {
mp->m_maxicount = 0;
mp->m_maxioffset = xfs_max_file_offset(sbp->sb_blocklog);
/*
* XFS uses the uuid from the superblock as the unique
* identifier for fsid. We can not use the uuid from the volume
* since a single partition filesystem is identical to a single
* partition volume/filesystem.
*/
if ((mfsi_flags & XFS_MFSI_SECOND) == 0 &&
(mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
if (xfs_uuid_mount(mp)) {
error = XFS_ERROR(EINVAL);
goto error1;
}
uuid_mounted=1;
}
/*
@ -886,6 +830,12 @@ xfs_mountfs(
* We use smaller I/O sizes when the file system
* is being used for NFS service (wsync mount option).
*/
STATIC void
xfs_set_rw_sizes(xfs_mount_t *mp)
{
xfs_sb_t *sbp = &(mp->m_sb);
int readio_log, writeio_log;
if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)) {
if (mp->m_flags & XFS_MOUNT_WSYNC) {
readio_log = XFS_WSYNC_READIO_LOG;
@ -911,17 +861,14 @@ xfs_mountfs(
mp->m_writeio_log = writeio_log;
}
mp->m_writeio_blocks = 1 << (mp->m_writeio_log - sbp->sb_blocklog);
/*
* Set the inode cluster size.
* This may still be overridden by the file system
* block size if it is larger than the chosen cluster size.
*/
mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
}
/*
* Set whether we're using inode alignment.
*/
STATIC void
xfs_set_inoalignment(xfs_mount_t *mp)
{
if (XFS_SB_VERSION_HASALIGN(&mp->m_sb) &&
mp->m_sb.sb_inoalignmt >=
XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
@ -937,14 +884,22 @@ xfs_mountfs(
mp->m_sinoalign = mp->m_dalign;
else
mp->m_sinoalign = 0;
}
/*
* Check that the data (and log if separate) are an ok size.
*/
STATIC int
xfs_check_sizes(xfs_mount_t *mp, int mfsi_flags)
{
xfs_buf_t *bp;
xfs_daddr_t d;
int error;
d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks);
if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) {
cmn_err(CE_WARN, "XFS: size check 1 failed");
error = XFS_ERROR(E2BIG);
goto error1;
return XFS_ERROR(E2BIG);
}
error = xfs_read_buf(mp, mp->m_ddev_targp,
d - XFS_FSS_TO_BB(mp, 1),
@ -953,10 +908,9 @@ xfs_mountfs(
xfs_buf_relse(bp);
} else {
cmn_err(CE_WARN, "XFS: size check 2 failed");
if (error == ENOSPC) {
if (error == ENOSPC)
error = XFS_ERROR(E2BIG);
}
goto error1;
return error;
}
if (((mfsi_flags & XFS_MFSI_CLIENT) == 0) &&
@ -964,8 +918,7 @@ xfs_mountfs(
d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks);
if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) {
cmn_err(CE_WARN, "XFS: size check 3 failed");
error = XFS_ERROR(E2BIG);
goto error1;
return XFS_ERROR(E2BIG);
}
error = xfs_read_buf(mp, mp->m_logdev_targp,
d - XFS_FSB_TO_BB(mp, 1),
@ -974,17 +927,111 @@ xfs_mountfs(
xfs_buf_relse(bp);
} else {
cmn_err(CE_WARN, "XFS: size check 3 failed");
if (error == ENOSPC) {
if (error == ENOSPC)
error = XFS_ERROR(E2BIG);
return error;
}
}
return 0;
}
/*
* xfs_mountfs
*
* This function does the following on an initial mount of a file system:
* - reads the superblock from disk and init the mount struct
* - if we're a 32-bit kernel, do a size check on the superblock
* so we don't mount terabyte filesystems
* - init mount struct realtime fields
* - allocate inode hash table for fs
* - init directory manager
* - perform recovery and init the log manager
*/
int
xfs_mountfs(
xfs_mount_t *mp,
int mfsi_flags)
{
xfs_sb_t *sbp = &(mp->m_sb);
xfs_inode_t *rip;
bhv_vnode_t *rvp = NULL;
__uint64_t resblks;
__int64_t update_flags = 0LL;
uint quotamount, quotaflags;
int agno;
int uuid_mounted = 0;
int error = 0;
if (mp->m_sb_bp == NULL) {
error = xfs_readsb(mp, mfsi_flags);
if (error)
return error;
}
xfs_mount_common(mp, sbp);
/*
* Check if sb_agblocks is aligned at stripe boundary
* If sb_agblocks is NOT aligned turn off m_dalign since
* allocator alignment is within an ag, therefore ag has
* to be aligned at stripe boundary.
*/
error = xfs_update_alignment(mp, mfsi_flags, &update_flags);
if (error)
goto error1;
xfs_alloc_compute_maxlevels(mp);
xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK);
xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK);
xfs_ialloc_compute_maxlevels(mp);
xfs_set_maxicount(mp);
mp->m_maxioffset = xfs_max_file_offset(sbp->sb_blocklog);
/*
* XFS uses the uuid from the superblock as the unique
* identifier for fsid. We can not use the uuid from the volume
* since a single partition filesystem is identical to a single
* partition volume/filesystem.
*/
if ((mfsi_flags & XFS_MFSI_SECOND) == 0 &&
(mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
if (xfs_uuid_mount(mp)) {
error = XFS_ERROR(EINVAL);
goto error1;
}
uuid_mounted=1;
}
/*
* Set the minimum read and write sizes
*/
xfs_set_rw_sizes(mp);
/*
* Set the inode cluster size.
* This may still be overridden by the file system
* block size if it is larger than the chosen cluster size.
*/
mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
/*
* Set inode alignment fields
*/
xfs_set_inoalignment(mp);
/*
* Check that the data (and log if separate) are an ok size.
*/
error = xfs_check_sizes(mp, mfsi_flags);
if (error)
goto error1;
/*
* Initialize realtime fields in the mount structure
*/
if ((error = xfs_rtmount_init(mp))) {
error = xfs_rtmount_init(mp);
if (error) {
cmn_err(CE_WARN, "XFS: RT mount failed");
goto error1;
}
@ -1102,7 +1149,8 @@ xfs_mountfs(
/*
* Initialize realtime inode pointers in the mount structure
*/
if ((error = xfs_rtmount_inodes(mp))) {
error = xfs_rtmount_inodes(mp);
if (error) {
/*
* Free up the root inode.
*/
@ -1120,7 +1168,8 @@ xfs_mountfs(
/*
* Initialise the XFS quota management subsystem for this mount
*/
if ((error = XFS_QM_INIT(mp, &quotamount, &quotaflags)))
error = XFS_QM_INIT(mp, &quotamount, &quotaflags);
if (error)
goto error4;
/*
@ -1137,7 +1186,8 @@ xfs_mountfs(
/*
* Complete the quota initialisation, post-log-replay component.
*/
if ((error = XFS_QM_MOUNT(mp, quotamount, quotaflags, mfsi_flags)))
error = XFS_QM_MOUNT(mp, quotamount, quotaflags, mfsi_flags);
if (error)
goto error4;
/*
@ -1255,7 +1305,6 @@ xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
xfs_errortag_clearall(mp, 0);
#endif
XFS_IODONE(mp);
xfs_mount_free(mp);
return 0;
}
@ -1441,7 +1490,7 @@ xfs_mod_sb(xfs_trans_t *tp, __int64_t fields)
* Fields are not allowed to dip below zero, so if the delta would
* do this do not apply it and return EINVAL.
*
* The SB_LOCK must be held when this routine is called.
* The m_sb_lock must be held when this routine is called.
*/
int
xfs_mod_incore_sb_unlocked(
@ -1606,7 +1655,7 @@ xfs_mod_incore_sb_unlocked(
/*
* xfs_mod_incore_sb() is used to change a field in the in-core
* superblock structure by the specified delta. This modification
* is protected by the SB_LOCK. Just use the xfs_mod_incore_sb_unlocked()
* is protected by the m_sb_lock. Just use the xfs_mod_incore_sb_unlocked()
* routine to do the work.
*/
int
@ -1616,7 +1665,6 @@ xfs_mod_incore_sb(
int64_t delta,
int rsvd)
{
unsigned long s;
int status;
/* check for per-cpu counters */
@ -1633,9 +1681,9 @@ xfs_mod_incore_sb(
/* FALLTHROUGH */
#endif
default:
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
break;
}
@ -1656,7 +1704,6 @@ xfs_mod_incore_sb(
int
xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
{
unsigned long s;
int status=0;
xfs_mod_sb_t *msbp;
@ -1664,10 +1711,10 @@ xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
* Loop through the array of mod structures and apply each
* individually. If any fail, then back out all those
* which have already been applied. Do all of this within
* the scope of the SB_LOCK so that all of the changes will
* the scope of the m_sb_lock so that all of the changes will
* be atomic.
*/
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
msbp = &msb[0];
for (msbp = &msbp[0]; msbp < (msb + nmsb); msbp++) {
/*
@ -1681,11 +1728,11 @@ xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
case XFS_SBS_IFREE:
case XFS_SBS_FDBLOCKS:
if (!(mp->m_flags & XFS_MOUNT_NO_PERCPU_SB)) {
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
status = xfs_icsb_modify_counters(mp,
msbp->msb_field,
msbp->msb_delta, rsvd);
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
break;
}
/* FALLTHROUGH */
@ -1719,12 +1766,12 @@ xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
case XFS_SBS_IFREE:
case XFS_SBS_FDBLOCKS:
if (!(mp->m_flags & XFS_MOUNT_NO_PERCPU_SB)) {
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
status = xfs_icsb_modify_counters(mp,
msbp->msb_field,
-(msbp->msb_delta),
rsvd);
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
break;
}
/* FALLTHROUGH */
@ -1740,7 +1787,7 @@ xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
msbp--;
}
}
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
return status;
}
@ -1888,12 +1935,12 @@ xfs_mount_log_sbunit(
*
* Locking rules:
*
* 1. XFS_SB_LOCK() before picking up per-cpu locks
* 1. m_sb_lock before picking up per-cpu locks
* 2. per-cpu locks always picked up via for_each_online_cpu() order
* 3. accurate counter sync requires XFS_SB_LOCK + per cpu locks
* 3. accurate counter sync requires m_sb_lock + per cpu locks
* 4. modifying per-cpu counters requires holding per-cpu lock
* 5. modifying global counters requires holding XFS_SB_LOCK
* 6. enabling or disabling a counter requires holding the XFS_SB_LOCK
* 5. modifying global counters requires holding m_sb_lock
* 6. enabling or disabling a counter requires holding the m_sb_lock
* and _none_ of the per-cpu locks.
*
* Disabled counters are only ever re-enabled by a balance operation
@ -1920,7 +1967,6 @@ xfs_icsb_cpu_notify(
{
xfs_icsb_cnts_t *cntp;
xfs_mount_t *mp;
int s;
mp = (xfs_mount_t *)container_of(nfb, xfs_mount_t, m_icsb_notifier);
cntp = (xfs_icsb_cnts_t *)
@ -1946,7 +1992,7 @@ xfs_icsb_cpu_notify(
* count into the total on the global superblock and
* re-enable the counters. */
xfs_icsb_lock(mp);
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
xfs_icsb_disable_counter(mp, XFS_SBS_ICOUNT);
xfs_icsb_disable_counter(mp, XFS_SBS_IFREE);
xfs_icsb_disable_counter(mp, XFS_SBS_FDBLOCKS);
@ -1963,7 +2009,7 @@ xfs_icsb_cpu_notify(
XFS_ICSB_SB_LOCKED, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS,
XFS_ICSB_SB_LOCKED, 0);
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
xfs_icsb_unlock(mp);
break;
}
@ -2194,11 +2240,10 @@ xfs_icsb_sync_counters_flags(
int flags)
{
xfs_icsb_cnts_t cnt;
int s;
/* Pass 1: lock all counters */
if ((flags & XFS_ICSB_SB_LOCKED) == 0)
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
xfs_icsb_count(mp, &cnt, flags);
@ -2211,7 +2256,7 @@ xfs_icsb_sync_counters_flags(
mp->m_sb.sb_fdblocks = cnt.icsb_fdblocks;
if ((flags & XFS_ICSB_SB_LOCKED) == 0)
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
}
/*
@ -2252,11 +2297,10 @@ xfs_icsb_balance_counter(
{
uint64_t count, resid;
int weight = num_online_cpus();
int s;
uint64_t min = (uint64_t)min_per_cpu;
if (!(flags & XFS_ICSB_SB_LOCKED))
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
/* disable counter and sync counter */
xfs_icsb_disable_counter(mp, field);
@ -2290,10 +2334,10 @@ xfs_icsb_balance_counter(
xfs_icsb_enable_counter(mp, field, count, resid);
out:
if (!(flags & XFS_ICSB_SB_LOCKED))
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
}
int
STATIC int
xfs_icsb_modify_counters(
xfs_mount_t *mp,
xfs_sb_field_t field,
@ -2302,7 +2346,7 @@ xfs_icsb_modify_counters(
{
xfs_icsb_cnts_t *icsbp;
long long lcounter; /* long counter for 64 bit fields */
int cpu, ret = 0, s;
int cpu, ret = 0;
might_sleep();
again:
@ -2380,15 +2424,15 @@ slow_path:
* running atomically here, we know a rebalance cannot
* be in progress. Hence we can go straight to operating
* on the global superblock. We do not call xfs_mod_incore_sb()
* here even though we need to get the SB_LOCK. Doing so
* here even though we need to get the m_sb_lock. Doing so
* will cause us to re-enter this function and deadlock.
* Hence we get the SB_LOCK ourselves and then call
* Hence we get the m_sb_lock ourselves and then call
* xfs_mod_incore_sb_unlocked() as the unlocked path operates
* directly on the global counters.
*/
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
ret = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
/*
* Now that we've modified the global superblock, we

127
fs/xfs/xfs_mount.h
Просмотреть файл

@ -56,20 +56,12 @@ struct cred;
struct log;
struct xfs_mount_args;
struct xfs_inode;
struct xfs_iocore;
struct xfs_bmbt_irec;
struct xfs_bmap_free;
struct xfs_extdelta;
struct xfs_swapext;
struct xfs_mru_cache;
#define AIL_LOCK_T lock_t
#define AIL_LOCKINIT(x,y) spinlock_init(x,y)
#define AIL_LOCK_DESTROY(x) spinlock_destroy(x)
#define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock)
#define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s)
/*
* Prototypes and functions for the Data Migration subsystem.
*/
@ -196,105 +188,6 @@ typedef struct xfs_qmops {
#define XFS_QM_QUOTACTL(mp, cmd, id, addr) \
(*(mp)->m_qm_ops->xfs_quotactl)(mp, cmd, id, addr)
/*
* Prototypes and functions for I/O core modularization.
*/
typedef int (*xfs_ioinit_t)(struct xfs_mount *,
struct xfs_mount_args *, int);
typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *,
xfs_fileoff_t, xfs_filblks_t, int,
xfs_fsblock_t *, xfs_extlen_t,
struct xfs_bmbt_irec *, int *,
struct xfs_bmap_free *, struct xfs_extdelta *);
typedef int (*xfs_bunmapi_t)(struct xfs_trans *,
void *, xfs_fileoff_t,
xfs_filblks_t, int, xfs_extnum_t,
xfs_fsblock_t *, struct xfs_bmap_free *,
struct xfs_extdelta *, int *);
typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *);
typedef int (*xfs_iomap_write_direct_t)(
void *, xfs_off_t, size_t, int,
struct xfs_bmbt_irec *, int *, int);
typedef int (*xfs_iomap_write_delay_t)(
void *, xfs_off_t, size_t, int,
struct xfs_bmbt_irec *, int *);
typedef int (*xfs_iomap_write_allocate_t)(
void *, xfs_off_t, size_t,
struct xfs_bmbt_irec *, int *);
typedef int (*xfs_iomap_write_unwritten_t)(
void *, xfs_off_t, size_t);
typedef uint (*xfs_lck_map_shared_t)(void *);
typedef void (*xfs_lock_t)(void *, uint);
typedef void (*xfs_lock_demote_t)(void *, uint);
typedef int (*xfs_lock_nowait_t)(void *, uint);
typedef void (*xfs_unlk_t)(void *, unsigned int);
typedef xfs_fsize_t (*xfs_size_t)(void *);
typedef xfs_fsize_t (*xfs_iodone_t)(struct xfs_mount *);
typedef int (*xfs_swap_extents_t)(void *, void *,
struct xfs_swapext*);
typedef struct xfs_ioops {
xfs_ioinit_t xfs_ioinit;
xfs_bmapi_t xfs_bmapi_func;
xfs_bunmapi_t xfs_bunmapi_func;
xfs_bmap_eof_t xfs_bmap_eof_func;
xfs_iomap_write_direct_t xfs_iomap_write_direct;
xfs_iomap_write_delay_t xfs_iomap_write_delay;
xfs_iomap_write_allocate_t xfs_iomap_write_allocate;
xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten;
xfs_lock_t xfs_ilock;
xfs_lck_map_shared_t xfs_lck_map_shared;
xfs_lock_demote_t xfs_ilock_demote;
xfs_lock_nowait_t xfs_ilock_nowait;
xfs_unlk_t xfs_unlock;
xfs_size_t xfs_size_func;
xfs_iodone_t xfs_iodone;
xfs_swap_extents_t xfs_swap_extents_func;
} xfs_ioops_t;
#define XFS_IOINIT(mp, args, flags) \
(*(mp)->m_io_ops.xfs_ioinit)(mp, args, flags)
#define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist,delta) \
(*(mp)->m_io_ops.xfs_bmapi_func) \
(trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist,delta)
#define XFS_BUNMAPI(mp, trans,io,bno,len,f,nexts,first,flist,delta,done) \
(*(mp)->m_io_ops.xfs_bunmapi_func) \
(trans,(io)->io_obj,bno,len,f,nexts,first,flist,delta,done)
#define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \
(*(mp)->m_io_ops.xfs_bmap_eof_func) \
((io)->io_obj, endoff, whichfork, eof)
#define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\
(*(mp)->m_io_ops.xfs_iomap_write_direct) \
((io)->io_obj, offset, count, flags, mval, nmap, found)
#define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \
(*(mp)->m_io_ops.xfs_iomap_write_delay) \
((io)->io_obj, offset, count, flags, mval, nmap)
#define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \
(*(mp)->m_io_ops.xfs_iomap_write_allocate) \
((io)->io_obj, offset, count, mval, nmap)
#define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \
(*(mp)->m_io_ops.xfs_iomap_write_unwritten) \
((io)->io_obj, offset, count)
#define XFS_LCK_MAP_SHARED(mp, io) \
(*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj)
#define XFS_ILOCK(mp, io, mode) \
(*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode)
#define XFS_ILOCK_NOWAIT(mp, io, mode) \
(*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode)
#define XFS_IUNLOCK(mp, io, mode) \
(*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode)
#define XFS_ILOCK_DEMOTE(mp, io, mode) \
(*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode)
#define XFS_SIZE(mp, io) \
(*(mp)->m_io_ops.xfs_size_func)((io)->io_obj)
#define XFS_IODONE(mp) \
(*(mp)->m_io_ops.xfs_iodone)(mp)
#define XFS_SWAP_EXTENTS(mp, io, tio, sxp) \
(*(mp)->m_io_ops.xfs_swap_extents_func) \
((io)->io_obj, (tio)->io_obj, sxp)
#ifdef HAVE_PERCPU_SB
/*
@ -326,14 +219,20 @@ extern void xfs_icsb_sync_counters_flags(struct xfs_mount *, int);
#define xfs_icsb_sync_counters_flags(mp, flags) do { } while (0)
#endif
typedef struct xfs_ail {
xfs_ail_entry_t xa_ail;
uint xa_gen;
struct task_struct *xa_task;
xfs_lsn_t xa_target;
} xfs_ail_t;
typedef struct xfs_mount {
struct super_block *m_super;
xfs_tid_t m_tid; /* next unused tid for fs */
AIL_LOCK_T m_ail_lock; /* fs AIL mutex */
xfs_ail_entry_t m_ail; /* fs active log item list */
uint m_ail_gen; /* fs AIL generation count */
spinlock_t m_ail_lock; /* fs AIL mutex */
xfs_ail_t m_ail; /* fs active log item list */
xfs_sb_t m_sb; /* copy of fs superblock */
lock_t m_sb_lock; /* sb counter mutex */
spinlock_t m_sb_lock; /* sb counter lock */
struct xfs_buf *m_sb_bp; /* buffer for superblock */
char *m_fsname; /* filesystem name */
int m_fsname_len; /* strlen of fs name */
@ -342,7 +241,7 @@ typedef struct xfs_mount {
int m_bsize; /* fs logical block size */
xfs_agnumber_t m_agfrotor; /* last ag where space found */
xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */
lock_t m_agirotor_lock;/* .. and lock protecting it */
spinlock_t m_agirotor_lock;/* .. and lock protecting it */
xfs_agnumber_t m_maxagi; /* highest inode alloc group */
struct xfs_inode *m_inodes; /* active inode list */
struct list_head m_del_inodes; /* inodes to reclaim */
@ -423,7 +322,6 @@ typedef struct xfs_mount {
* hash table */
struct xfs_dmops *m_dm_ops; /* vector of DMI ops */
struct xfs_qmops *m_qm_ops; /* vector of XQM ops */
struct xfs_ioops m_io_ops; /* vector of I/O ops */
atomic_t m_active_trans; /* number trans frozen */
#ifdef HAVE_PERCPU_SB
xfs_icsb_cnts_t *m_sb_cnts; /* per-cpu superblock counters */
@ -610,8 +508,6 @@ typedef struct xfs_mod_sb {
#define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock))
#define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock))
#define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock)
#define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s))
extern xfs_mount_t *xfs_mount_init(void);
extern void xfs_mod_sb(xfs_trans_t *, __int64_t);
@ -646,7 +542,6 @@ extern int xfs_qmops_get(struct xfs_mount *, struct xfs_mount_args *);
extern void xfs_qmops_put(struct xfs_mount *);
extern struct xfs_dmops xfs_dmcore_xfs;
extern struct xfs_ioops xfs_iocore_xfs;
extern int xfs_init(void);
extern void xfs_cleanup(void);

54
fs/xfs/xfs_mru_cache.c
Просмотреть файл

@ -225,10 +225,14 @@ _xfs_mru_cache_list_insert(
* list need to be deleted. For each element this involves removing it from the
* data store, removing it from the reap list, calling the client's free
* function and deleting the element from the element zone.
*
* We get called holding the mru->lock, which we drop and then reacquire.
* Sparse need special help with this to tell it we know what we are doing.
*/
STATIC void
_xfs_mru_cache_clear_reap_list(
xfs_mru_cache_t *mru)
xfs_mru_cache_t *mru) __releases(mru->lock) __acquires(mru->lock)
{
xfs_mru_cache_elem_t *elem, *next;
struct list_head tmp;
@ -245,7 +249,7 @@ _xfs_mru_cache_clear_reap_list(
*/
list_move(&elem->list_node, &tmp);
}
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
list_for_each_entry_safe(elem, next, &tmp, list_node) {
@ -259,7 +263,7 @@ _xfs_mru_cache_clear_reap_list(
kmem_zone_free(xfs_mru_elem_zone, elem);
}
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
}
/*
@ -280,7 +284,7 @@ _xfs_mru_cache_reap(
if (!mru || !mru->lists)
return;
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
next = _xfs_mru_cache_migrate(mru, jiffies);
_xfs_mru_cache_clear_reap_list(mru);
@ -294,7 +298,7 @@ _xfs_mru_cache_reap(
queue_delayed_work(xfs_mru_reap_wq, &mru->work, next);
}
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
}
int
@ -368,7 +372,7 @@ xfs_mru_cache_create(
*/
INIT_RADIX_TREE(&mru->store, GFP_ATOMIC);
INIT_LIST_HEAD(&mru->reap_list);
spinlock_init(&mru->lock, "xfs_mru_cache");
spin_lock_init(&mru->lock);
INIT_DELAYED_WORK(&mru->work, _xfs_mru_cache_reap);
mru->grp_time = grp_time;
@ -398,17 +402,17 @@ xfs_mru_cache_flush(
if (!mru || !mru->lists)
return;
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
if (mru->queued) {
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
cancel_rearming_delayed_workqueue(xfs_mru_reap_wq, &mru->work);
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
}
_xfs_mru_cache_migrate(mru, jiffies + mru->grp_count * mru->grp_time);
_xfs_mru_cache_clear_reap_list(mru);
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
}
void
@ -454,13 +458,13 @@ xfs_mru_cache_insert(
elem->key = key;
elem->value = value;
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
radix_tree_insert(&mru->store, key, elem);
radix_tree_preload_end();
_xfs_mru_cache_list_insert(mru, elem);
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
return 0;
}
@ -483,14 +487,14 @@ xfs_mru_cache_remove(
if (!mru || !mru->lists)
return NULL;
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
elem = radix_tree_delete(&mru->store, key);
if (elem) {
value = elem->value;
list_del(&elem->list_node);
}
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
if (elem)
kmem_zone_free(xfs_mru_elem_zone, elem);
@ -528,6 +532,10 @@ xfs_mru_cache_delete(
*
* If the element isn't found, this function returns NULL and the spinlock is
* released. xfs_mru_cache_done() should NOT be called when this occurs.
*
* Because sparse isn't smart enough to know about conditional lock return
* status, we need to help it get it right by annotating the path that does
* not release the lock.
*/
void *
xfs_mru_cache_lookup(
@ -540,14 +548,14 @@ xfs_mru_cache_lookup(
if (!mru || !mru->lists)
return NULL;
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
elem = radix_tree_lookup(&mru->store, key);
if (elem) {
list_del(&elem->list_node);
_xfs_mru_cache_list_insert(mru, elem);
}
else
mutex_spinunlock(&mru->lock, 0);
__release(mru_lock); /* help sparse not be stupid */
} else
spin_unlock(&mru->lock);
return elem ? elem->value : NULL;
}
@ -571,10 +579,12 @@ xfs_mru_cache_peek(
if (!mru || !mru->lists)
return NULL;
mutex_spinlock(&mru->lock);
spin_lock(&mru->lock);
elem = radix_tree_lookup(&mru->store, key);
if (!elem)
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
else
__release(mru_lock); /* help sparse not be stupid */
return elem ? elem->value : NULL;
}
@ -586,7 +596,7 @@ xfs_mru_cache_peek(
*/
void
xfs_mru_cache_done(
xfs_mru_cache_t *mru)
xfs_mru_cache_t *mru) __releases(mru->lock)
{
mutex_spinunlock(&mru->lock, 0);
spin_unlock(&mru->lock);
}

7
fs/xfs/xfs_qmops.c
Просмотреть файл

@ -49,18 +49,17 @@ xfs_mount_reset_sbqflags(xfs_mount_t *mp)
{
int error;
xfs_trans_t *tp;
unsigned long s;
mp->m_qflags = 0;
/*
* It is OK to look at sb_qflags here in mount path,
* without SB_LOCK.
* without m_sb_lock.
*/
if (mp->m_sb.sb_qflags == 0)
return 0;
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
mp->m_sb.sb_qflags = 0;
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
/*
* if the fs is readonly, let the incore superblock run

9
fs/xfs/xfs_rename.c
Просмотреть файл

@ -39,6 +39,7 @@
#include "xfs_refcache.h"
#include "xfs_utils.h"
#include "xfs_trans_space.h"
#include "xfs_vnodeops.h"
/*
@ -118,7 +119,7 @@ xfs_lock_for_rename(
inum1 = ip1->i_ino;
ASSERT(ip1);
ITRACE(ip1);
xfs_itrace_ref(ip1);
/*
* Unlock dp1 and lock dp2 if they are different.
@ -141,7 +142,7 @@ xfs_lock_for_rename(
IRELE (ip1);
return error;
} else {
ITRACE(ip2);
xfs_itrace_ref(ip2);
}
/*
@ -247,8 +248,8 @@ xfs_rename(
int src_namelen = VNAMELEN(src_vname);
int target_namelen = VNAMELEN(target_vname);
vn_trace_entry(src_dp, "xfs_rename", (inst_t *)__return_address);
vn_trace_entry(xfs_vtoi(target_dir_vp), "xfs_rename", (inst_t *)__return_address);
xfs_itrace_entry(src_dp);
xfs_itrace_entry(xfs_vtoi(target_dir_vp));
/*
* Find the XFS behavior descriptor for the target directory

19
fs/xfs/xfs_rtalloc.c
Просмотреть файл

@ -72,18 +72,6 @@ STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int,
* Internal functions.
*/
/*
* xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set.
*/
STATIC int
xfs_lowbit32(
__uint32_t v)
{
if (v)
return ffs(v) - 1;
return -1;
}
/*
* Allocate space to the bitmap or summary file, and zero it, for growfs.
*/
@ -444,6 +432,7 @@ xfs_rtallocate_extent_near(
}
bbno = XFS_BITTOBLOCK(mp, bno);
i = 0;
ASSERT(minlen != 0);
log2len = xfs_highbit32(minlen);
/*
* Loop over all bitmap blocks (bbno + i is current block).
@ -612,6 +601,8 @@ xfs_rtallocate_extent_size(
xfs_suminfo_t sum; /* summary information for extents */
ASSERT(minlen % prod == 0 && maxlen % prod == 0);
ASSERT(maxlen != 0);
/*
* Loop over all the levels starting with maxlen.
* At each level, look at all the bitmap blocks, to see if there
@ -669,6 +660,9 @@ xfs_rtallocate_extent_size(
*rtblock = NULLRTBLOCK;
return 0;
}
ASSERT(minlen != 0);
ASSERT(maxlen != 0);
/*
* Loop over sizes, from maxlen down to minlen.
* This time, when we do the allocations, allow smaller ones
@ -1954,6 +1948,7 @@ xfs_growfs_rt(
nsbp->sb_blocksize * nsbp->sb_rextsize);
nsbp->sb_rextents = nsbp->sb_rblocks;
do_div(nsbp->sb_rextents, nsbp->sb_rextsize);
ASSERT(nsbp->sb_rextents != 0);
nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents);
nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1;
nrsumsize =

2
fs/xfs/xfs_rtalloc.h
Просмотреть файл

@ -21,8 +21,6 @@
struct xfs_mount;
struct xfs_trans;
#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
/* Min and max rt extent sizes, specified in bytes */
#define XFS_MAX_RTEXTSIZE (1024 * 1024 * 1024) /* 1GB */
#define XFS_DFL_RTEXTSIZE (64 * 1024) /* 64KB */

12
fs/xfs/xfs_rw.h
Просмотреть файл

@ -32,18 +32,10 @@ struct xfs_mount;
static inline xfs_daddr_t
xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
{
return (((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) ? \
return (XFS_IS_REALTIME_INODE(ip) ? \
(xfs_daddr_t)XFS_FSB_TO_BB((ip)->i_mount, (fsb)) : \
XFS_FSB_TO_DADDR((ip)->i_mount, (fsb)));
}
#define XFS_FSB_TO_DB_IO(io,fsb) xfs_fsb_to_db_io(io,fsb)
static inline xfs_daddr_t
xfs_fsb_to_db_io(struct xfs_iocore *io, xfs_fsblock_t fsb)
{
return (((io)->io_flags & XFS_IOCORE_RT) ? \
XFS_FSB_TO_BB((io)->io_mount, (fsb)) : \
XFS_FSB_TO_DADDR((io)->io_mount, (fsb)));
}
/*
* Flags for xfs_free_eofblocks
@ -61,7 +53,7 @@ xfs_get_extsz_hint(
{
xfs_extlen_t extsz;
if (unlikely(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
if (unlikely(XFS_IS_REALTIME_INODE(ip))) {
extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)
? ip->i_d.di_extsize
: ip->i_mount->m_sb.sb_rextsize;

7
fs/xfs/xfs_trans.c
Просмотреть файл

@ -1322,7 +1322,6 @@ xfs_trans_chunk_committed(
xfs_lsn_t item_lsn;
struct xfs_mount *mp;
int i;
SPLDECL(s);
lidp = licp->lic_descs;
for (i = 0; i < licp->lic_unused; i++, lidp++) {
@ -1363,7 +1362,7 @@ xfs_trans_chunk_committed(
* the test below.
*/
mp = lip->li_mountp;
AIL_LOCK(mp,s);
spin_lock(&mp->m_ail_lock);
if (XFS_LSN_CMP(item_lsn, lip->li_lsn) > 0) {
/*
* This will set the item's lsn to item_lsn
@ -1372,9 +1371,9 @@ xfs_trans_chunk_committed(
*
* xfs_trans_update_ail() drops the AIL lock.
*/
xfs_trans_update_ail(mp, lip, item_lsn, s);
xfs_trans_update_ail(mp, lip, item_lsn);
} else {
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
/*

7
fs/xfs/xfs_trans.h
Просмотреть файл

@ -992,8 +992,9 @@ int _xfs_trans_commit(xfs_trans_t *,
int *);
#define xfs_trans_commit(tp, flags) _xfs_trans_commit(tp, flags, NULL)
void xfs_trans_cancel(xfs_trans_t *, int);
void xfs_trans_ail_init(struct xfs_mount *);
xfs_lsn_t xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
int xfs_trans_ail_init(struct xfs_mount *);
void xfs_trans_ail_destroy(struct xfs_mount *);
void xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
xfs_lsn_t xfs_trans_tail_ail(struct xfs_mount *);
void xfs_trans_unlocked_item(struct xfs_mount *,
xfs_log_item_t *);
@ -1001,6 +1002,8 @@ xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp,
xfs_agnumber_t ag,
xfs_extlen_t idx);
extern kmem_zone_t *xfs_trans_zone;
#endif /* __KERNEL__ */
#endif /* __XFS_TRANS_H__ */

326
fs/xfs/xfs_trans_ail.c
Просмотреть файл

@ -34,9 +34,9 @@ STATIC xfs_log_item_t * xfs_ail_min(xfs_ail_entry_t *);
STATIC xfs_log_item_t * xfs_ail_next(xfs_ail_entry_t *, xfs_log_item_t *);
#ifdef DEBUG
STATIC void xfs_ail_check(xfs_ail_entry_t *);
STATIC void xfs_ail_check(xfs_ail_entry_t *, xfs_log_item_t *);
#else
#define xfs_ail_check(a)
#define xfs_ail_check(a,l)
#endif /* DEBUG */
@ -55,16 +55,15 @@ xfs_trans_tail_ail(
{
xfs_lsn_t lsn;
xfs_log_item_t *lip;
SPLDECL(s);
AIL_LOCK(mp,s);
lip = xfs_ail_min(&(mp->m_ail));
spin_lock(&mp->m_ail_lock);
lip = xfs_ail_min(&(mp->m_ail.xa_ail));
if (lip == NULL) {
lsn = (xfs_lsn_t)0;
} else {
lsn = lip->li_lsn;
}
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
return lsn;
}
@ -72,100 +71,147 @@ xfs_trans_tail_ail(
/*
* xfs_trans_push_ail
*
* This routine is called to move the tail of the AIL
* forward. It does this by trying to flush items in the AIL
* whose lsns are below the given threshold_lsn.
* This routine is called to move the tail of the AIL forward. It does this by
* trying to flush items in the AIL whose lsns are below the given
* threshold_lsn.
*
* The routine returns the lsn of the tail of the log.
* the push is run asynchronously in a separate thread, so we return the tail
* of the log right now instead of the tail after the push. This means we will
* either continue right away, or we will sleep waiting on the async thread to
* do it's work.
*
* We do this unlocked - we only need to know whether there is anything in the
* AIL at the time we are called. We don't need to access the contents of
* any of the objects, so the lock is not needed.
*/
xfs_lsn_t
void
xfs_trans_push_ail(
xfs_mount_t *mp,
xfs_lsn_t threshold_lsn)
{
xfs_log_item_t *lip;
lip = xfs_ail_min(&mp->m_ail.xa_ail);
if (lip && !XFS_FORCED_SHUTDOWN(mp)) {
if (XFS_LSN_CMP(threshold_lsn, mp->m_ail.xa_target) > 0)
xfsaild_wakeup(mp, threshold_lsn);
}
}
/*
* Return the item in the AIL with the current lsn.
* Return the current tree generation number for use
* in calls to xfs_trans_next_ail().
*/
STATIC xfs_log_item_t *
xfs_trans_first_push_ail(
xfs_mount_t *mp,
int *gen,
xfs_lsn_t lsn)
{
xfs_log_item_t *lip;
lip = xfs_ail_min(&(mp->m_ail.xa_ail));
*gen = (int)mp->m_ail.xa_gen;
if (lsn == 0)
return lip;
while (lip && (XFS_LSN_CMP(lip->li_lsn, lsn) < 0))
lip = lip->li_ail.ail_forw;
return lip;
}
/*
* Function that does the work of pushing on the AIL
*/
long
xfsaild_push(
xfs_mount_t *mp,
xfs_lsn_t *last_lsn)
{
long tout = 1000; /* milliseconds */
xfs_lsn_t last_pushed_lsn = *last_lsn;
xfs_lsn_t target = mp->m_ail.xa_target;
xfs_lsn_t lsn;
xfs_log_item_t *lip;
int gen;
int restarts;
int lock_result;
int flush_log;
SPLDECL(s);
int flush_log, count, stuck;
#define XFS_TRANS_PUSH_AIL_RESTARTS 1000
#define XFS_TRANS_PUSH_AIL_RESTARTS 10
AIL_LOCK(mp,s);
lip = xfs_trans_first_ail(mp, &gen);
if (lip == NULL || XFS_FORCED_SHUTDOWN(mp)) {
spin_lock(&mp->m_ail_lock);
lip = xfs_trans_first_push_ail(mp, &gen, *last_lsn);
if (!lip || XFS_FORCED_SHUTDOWN(mp)) {
/*
* Just return if the AIL is empty.
* AIL is empty or our push has reached the end.
*/
AIL_UNLOCK(mp, s);
return (xfs_lsn_t)0;
spin_unlock(&mp->m_ail_lock);
last_pushed_lsn = 0;
goto out;
}
XFS_STATS_INC(xs_push_ail);
/*
* While the item we are looking at is below the given threshold
* try to flush it out. Make sure to limit the number of times
* we allow xfs_trans_next_ail() to restart scanning from the
* beginning of the list. We'd like not to stop until we've at least
* try to flush it out. We'd like not to stop until we've at least
* tried to push on everything in the AIL with an LSN less than
* the given threshold. However, we may give up before that if
* we realize that we've been holding the AIL_LOCK for 'too long',
* blocking interrupts. Currently, too long is < 500us roughly.
*/
flush_log = 0;
restarts = 0;
while (((restarts < XFS_TRANS_PUSH_AIL_RESTARTS) &&
(XFS_LSN_CMP(lip->li_lsn, threshold_lsn) < 0))) {
/*
* If we can lock the item without sleeping, unlock
* the AIL lock and flush the item. Then re-grab the
* AIL lock so we can look for the next item on the
* AIL. Since we unlock the AIL while we flush the
* item, the next routine may start over again at the
* the beginning of the list if anything has changed.
* That is what the generation count is for.
* the given threshold.
*
* If we can't lock the item, either its holder will flush
* it or it is already being flushed or it is being relogged.
* In any of these case it is being taken care of and we
* can just skip to the next item in the list.
* However, we will stop after a certain number of pushes and wait
* for a reduced timeout to fire before pushing further. This
* prevents use from spinning when we can't do anything or there is
* lots of contention on the AIL lists.
*/
tout = 10;
lsn = lip->li_lsn;
flush_log = stuck = count = restarts = 0;
while ((XFS_LSN_CMP(lip->li_lsn, target) < 0)) {
int lock_result;
/*
* If we can lock the item without sleeping, unlock the AIL
* lock and flush the item. Then re-grab the AIL lock so we
* can look for the next item on the AIL. List changes are
* handled by the AIL lookup functions internally
*
* If we can't lock the item, either its holder will flush it
* or it is already being flushed or it is being relogged. In
* any of these case it is being taken care of and we can just
* skip to the next item in the list.
*/
lock_result = IOP_TRYLOCK(lip);
spin_unlock(&mp->m_ail_lock);
switch (lock_result) {
case XFS_ITEM_SUCCESS:
AIL_UNLOCK(mp, s);
XFS_STATS_INC(xs_push_ail_success);
IOP_PUSH(lip);
AIL_LOCK(mp,s);
last_pushed_lsn = lsn;
break;
case XFS_ITEM_PUSHBUF:
AIL_UNLOCK(mp, s);
XFS_STATS_INC(xs_push_ail_pushbuf);
#ifdef XFSRACEDEBUG
delay_for_intr();
delay(300);
#endif
ASSERT(lip->li_ops->iop_pushbuf);
ASSERT(lip);
IOP_PUSHBUF(lip);
AIL_LOCK(mp,s);
last_pushed_lsn = lsn;
break;
case XFS_ITEM_PINNED:
XFS_STATS_INC(xs_push_ail_pinned);
stuck++;
flush_log = 1;
break;
case XFS_ITEM_LOCKED:
XFS_STATS_INC(xs_push_ail_locked);
last_pushed_lsn = lsn;
stuck++;
break;
case XFS_ITEM_FLUSHING:
XFS_STATS_INC(xs_push_ail_flushing);
last_pushed_lsn = lsn;
stuck++;
break;
default:
@ -173,19 +219,37 @@ xfs_trans_push_ail(
break;
}
lip = xfs_trans_next_ail(mp, lip, &gen, &restarts);
if (lip == NULL) {
spin_lock(&mp->m_ail_lock);
/* should we bother continuing? */
if (XFS_FORCED_SHUTDOWN(mp))
break;
}
if (XFS_FORCED_SHUTDOWN(mp)) {
/*
* Just return if we shut down during the last try.
*/
AIL_UNLOCK(mp, s);
return (xfs_lsn_t)0;
}
ASSERT(mp->m_log);
count++;
/*
* Are there too many items we can't do anything with?
* If we we are skipping too many items because we can't flush
* them or they are already being flushed, we back off and
* given them time to complete whatever operation is being
* done. i.e. remove pressure from the AIL while we can't make
* progress so traversals don't slow down further inserts and
* removals to/from the AIL.
*
* The value of 100 is an arbitrary magic number based on
* observation.
*/
if (stuck > 100)
break;
lip = xfs_trans_next_ail(mp, lip, &gen, &restarts);
if (lip == NULL)
break;
if (restarts > XFS_TRANS_PUSH_AIL_RESTARTS)
break;
lsn = lip->li_lsn;
}
spin_unlock(&mp->m_ail_lock);
if (flush_log) {
/*
@ -193,22 +257,35 @@ xfs_trans_push_ail(
* push out the log so it will become unpinned and
* move forward in the AIL.
*/
AIL_UNLOCK(mp, s);
XFS_STATS_INC(xs_push_ail_flush);
xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE);
AIL_LOCK(mp, s);
}
lip = xfs_ail_min(&(mp->m_ail));
if (lip == NULL) {
lsn = (xfs_lsn_t)0;
} else {
lsn = lip->li_lsn;
/*
* We reached the target so wait a bit longer for I/O to complete and
* remove pushed items from the AIL before we start the next scan from
* the start of the AIL.
*/
if ((XFS_LSN_CMP(lsn, target) >= 0)) {
tout += 20;
last_pushed_lsn = 0;
} else if ((restarts > XFS_TRANS_PUSH_AIL_RESTARTS) ||
(count && ((stuck * 100) / count > 90))) {
/*
* Either there is a lot of contention on the AIL or we
* are stuck due to operations in progress. "Stuck" in this
* case is defined as >90% of the items we tried to push
* were stuck.
*
* Backoff a bit more to allow some I/O to complete before
* continuing from where we were.
*/
tout += 10;
}
AIL_UNLOCK(mp, s);
return lsn;
} /* xfs_trans_push_ail */
out:
*last_lsn = last_pushed_lsn;
return tout;
} /* xfsaild_push */
/*
@ -249,7 +326,7 @@ xfs_trans_unlocked_item(
* the call to xfs_log_move_tail() doesn't do anything if there's
* not enough free space to wake people up so we're safe calling it.
*/
min_lip = xfs_ail_min(&mp->m_ail);
min_lip = xfs_ail_min(&mp->m_ail.xa_ail);
if (min_lip == lip)
xfs_log_move_tail(mp, 1);
@ -269,21 +346,19 @@ xfs_trans_unlocked_item(
* has changed.
*
* This function must be called with the AIL lock held. The lock
* is dropped before returning, so the caller must pass in the
* cookie returned by AIL_LOCK.
* is dropped before returning.
*/
void
xfs_trans_update_ail(
xfs_mount_t *mp,
xfs_log_item_t *lip,
xfs_lsn_t lsn,
unsigned long s) __releases(mp->m_ail_lock)
xfs_lsn_t lsn) __releases(mp->m_ail_lock)
{
xfs_ail_entry_t *ailp;
xfs_log_item_t *dlip=NULL;
xfs_log_item_t *mlip; /* ptr to minimum lip */
ailp = &(mp->m_ail);
ailp = &(mp->m_ail.xa_ail);
mlip = xfs_ail_min(ailp);
if (lip->li_flags & XFS_LI_IN_AIL) {
@ -296,14 +371,14 @@ xfs_trans_update_ail(
lip->li_lsn = lsn;
xfs_ail_insert(ailp, lip);
mp->m_ail_gen++;
mp->m_ail.xa_gen++;
if (mlip == dlip) {
mlip = xfs_ail_min(&(mp->m_ail));
AIL_UNLOCK(mp, s);
mlip = xfs_ail_min(&(mp->m_ail.xa_ail));
spin_unlock(&mp->m_ail_lock);
xfs_log_move_tail(mp, mlip->li_lsn);
} else {
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
@ -322,21 +397,19 @@ xfs_trans_update_ail(
* has changed.
*
* This function must be called with the AIL lock held. The lock
* is dropped before returning, so the caller must pass in the
* cookie returned by AIL_LOCK.
* is dropped before returning.
*/
void
xfs_trans_delete_ail(
xfs_mount_t *mp,
xfs_log_item_t *lip,
unsigned long s) __releases(mp->m_ail_lock)
xfs_log_item_t *lip) __releases(mp->m_ail_lock)
{
xfs_ail_entry_t *ailp;
xfs_log_item_t *dlip;
xfs_log_item_t *mlip;
if (lip->li_flags & XFS_LI_IN_AIL) {
ailp = &(mp->m_ail);
ailp = &(mp->m_ail.xa_ail);
mlip = xfs_ail_min(ailp);
dlip = xfs_ail_delete(ailp, lip);
ASSERT(dlip == lip);
@ -344,14 +417,14 @@ xfs_trans_delete_ail(
lip->li_flags &= ~XFS_LI_IN_AIL;
lip->li_lsn = 0;
mp->m_ail_gen++;
mp->m_ail.xa_gen++;
if (mlip == dlip) {
mlip = xfs_ail_min(&(mp->m_ail));
AIL_UNLOCK(mp, s);
mlip = xfs_ail_min(&(mp->m_ail.xa_ail));
spin_unlock(&mp->m_ail_lock);
xfs_log_move_tail(mp, (mlip ? mlip->li_lsn : 0));
} else {
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
}
}
else {
@ -360,12 +433,12 @@ xfs_trans_delete_ail(
* serious trouble if we get to this stage.
*/
if (XFS_FORCED_SHUTDOWN(mp))
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
else {
xfs_cmn_err(XFS_PTAG_AILDELETE, CE_ALERT, mp,
"%s: attempting to delete a log item that is not in the AIL",
__FUNCTION__);
AIL_UNLOCK(mp, s);
spin_unlock(&mp->m_ail_lock);
xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
}
}
@ -385,10 +458,10 @@ xfs_trans_first_ail(
{
xfs_log_item_t *lip;
lip = xfs_ail_min(&(mp->m_ail));
*gen = (int)mp->m_ail_gen;
lip = xfs_ail_min(&(mp->m_ail.xa_ail));
*gen = (int)mp->m_ail.xa_gen;
return (lip);
return lip;
}
/*
@ -408,11 +481,11 @@ xfs_trans_next_ail(
xfs_log_item_t *nlip;
ASSERT(mp && lip && gen);
if (mp->m_ail_gen == *gen) {
nlip = xfs_ail_next(&(mp->m_ail), lip);
if (mp->m_ail.xa_gen == *gen) {
nlip = xfs_ail_next(&(mp->m_ail.xa_ail), lip);
} else {
nlip = xfs_ail_min(&(mp->m_ail));
*gen = (int)mp->m_ail_gen;
nlip = xfs_ail_min(&(mp->m_ail).xa_ail);
*gen = (int)mp->m_ail.xa_gen;
if (restarts != NULL) {
XFS_STATS_INC(xs_push_ail_restarts);
(*restarts)++;
@ -437,12 +510,20 @@ xfs_trans_next_ail(
/*
* Initialize the doubly linked list to point only to itself.
*/
void
int
xfs_trans_ail_init(
xfs_mount_t *mp)
{
mp->m_ail.ail_forw = (xfs_log_item_t*)&(mp->m_ail);
mp->m_ail.ail_back = (xfs_log_item_t*)&(mp->m_ail);
mp->m_ail.xa_ail.ail_forw = (xfs_log_item_t*)&mp->m_ail.xa_ail;
mp->m_ail.xa_ail.ail_back = (xfs_log_item_t*)&mp->m_ail.xa_ail;
return xfsaild_start(mp);
}
void
xfs_trans_ail_destroy(
xfs_mount_t *mp)
{
xfsaild_stop(mp);
}
/*
@ -482,7 +563,7 @@ xfs_ail_insert(
next_lip->li_ail.ail_forw = lip;
lip->li_ail.ail_forw->li_ail.ail_back = lip;
xfs_ail_check(base);
xfs_ail_check(base, lip);
return;
}
@ -496,12 +577,12 @@ xfs_ail_delete(
xfs_log_item_t *lip)
/* ARGSUSED */
{
xfs_ail_check(base, lip);
lip->li_ail.ail_forw->li_ail.ail_back = lip->li_ail.ail_back;
lip->li_ail.ail_back->li_ail.ail_forw = lip->li_ail.ail_forw;
lip->li_ail.ail_forw = NULL;
lip->li_ail.ail_back = NULL;
xfs_ail_check(base);
return lip;
}
@ -545,13 +626,13 @@ xfs_ail_next(
*/
STATIC void
xfs_ail_check(
xfs_ail_entry_t *base)
xfs_ail_entry_t *base,
xfs_log_item_t *lip)
{
xfs_log_item_t *lip;
xfs_log_item_t *prev_lip;
lip = base->ail_forw;
if (lip == (xfs_log_item_t*)base) {
prev_lip = base->ail_forw;
if (prev_lip == (xfs_log_item_t*)base) {
/*
* Make sure the pointers are correct when the list
* is empty.
@ -560,10 +641,28 @@ xfs_ail_check(
return;
}
/*
* Check the next and previous entries are valid.
*/
ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
prev_lip = lip->li_ail.ail_back;
if (prev_lip != (xfs_log_item_t*)base) {
ASSERT(prev_lip->li_ail.ail_forw == lip);
ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
}
prev_lip = lip->li_ail.ail_forw;
if (prev_lip != (xfs_log_item_t*)base) {
ASSERT(prev_lip->li_ail.ail_back == lip);
ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) >= 0);
}
#ifdef XFS_TRANS_DEBUG
/*
* Walk the list checking forward and backward pointers,
* lsn ordering, and that every entry has the XFS_LI_IN_AIL
* flag set.
* flag set. This is really expensive, so only do it when
* specifically debugging the transaction subsystem.
*/
prev_lip = (xfs_log_item_t*)base;
while (lip != (xfs_log_item_t*)base) {
@ -578,5 +677,6 @@ xfs_ail_check(
}
ASSERT(lip == (xfs_log_item_t*)base);
ASSERT(base->ail_back == prev_lip);
#endif /* XFS_TRANS_DEBUG */
}
#endif /* DEBUG */

1
fs/xfs/xfs_trans_item.c
Просмотреть файл

@ -21,6 +21,7 @@
#include "xfs_log.h"
#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_trans_priv.h"
STATIC int xfs_trans_unlock_chunk(xfs_log_item_chunk_t *,
int, int, xfs_lsn_t);

13
fs/xfs/xfs_trans_priv.h
Просмотреть файл

@ -47,15 +47,22 @@ xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp,
* From xfs_trans_ail.c
*/
void xfs_trans_update_ail(struct xfs_mount *mp,
struct xfs_log_item *lip, xfs_lsn_t lsn,
unsigned long s)
struct xfs_log_item *lip, xfs_lsn_t lsn)
__releases(mp->m_ail_lock);
void xfs_trans_delete_ail(struct xfs_mount *mp,
struct xfs_log_item *lip, unsigned long s)
struct xfs_log_item *lip)
__releases(mp->m_ail_lock);
struct xfs_log_item *xfs_trans_first_ail(struct xfs_mount *, int *);
struct xfs_log_item *xfs_trans_next_ail(struct xfs_mount *,
struct xfs_log_item *, int *, int *);
/*
* AIL push thread support
*/
long xfsaild_push(struct xfs_mount *, xfs_lsn_t *);
void xfsaild_wakeup(struct xfs_mount *, xfs_lsn_t);
int xfsaild_start(struct xfs_mount *);
void xfsaild_stop(struct xfs_mount *);
#endif /* __XFS_TRANS_PRIV_H__ */

11
fs/xfs/xfs_utils.c
Просмотреть файл

@ -73,7 +73,7 @@ xfs_dir_lookup_int(
{
int error;
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
error = xfs_dir_lookup(NULL, dp, VNAME(dentry), VNAMELEN(dentry), inum);
if (!error) {
@ -302,6 +302,7 @@ xfs_droplink(
ASSERT (ip->i_d.di_nlink > 0);
ip->i_d.di_nlink--;
drop_nlink(ip->i_vnode);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
error = 0;
@ -330,7 +331,6 @@ xfs_bump_ino_vers2(
xfs_inode_t *ip)
{
xfs_mount_t *mp;
unsigned long s;
ASSERT(ismrlocked (&ip->i_lock, MR_UPDATE));
ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1);
@ -340,13 +340,13 @@ xfs_bump_ino_vers2(
memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
mp = tp->t_mountp;
if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
s = XFS_SB_LOCK(mp);
spin_lock(&mp->m_sb_lock);
if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
XFS_SB_VERSION_ADDNLINK(&mp->m_sb);
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
xfs_mod_sb(tp, XFS_SB_VERSIONNUM);
} else {
XFS_SB_UNLOCK(mp, s);
spin_unlock(&mp->m_sb_lock);
}
}
/* Caller must log the inode */
@ -366,6 +366,7 @@ xfs_bumplink(
ASSERT(ip->i_d.di_nlink > 0);
ip->i_d.di_nlink++;
inc_nlink(ip->i_vnode);
if ((ip->i_d.di_version == XFS_DINODE_VERSION_1) &&
(ip->i_d.di_nlink > XFS_MAXLINK_1)) {
/*

2
fs/xfs/xfs_utils.h
Просмотреть файл

@ -20,8 +20,6 @@
#define IRELE(ip) VN_RELE(XFS_ITOV(ip))
#define IHOLD(ip) VN_HOLD(XFS_ITOV(ip))
#define ITRACE(ip) vn_trace_ref(ip, __FILE__, __LINE__, \
(inst_t *)__return_address)
extern int xfs_get_dir_entry (bhv_vname_t *, xfs_inode_t **);
extern int xfs_dir_lookup_int (xfs_inode_t *, uint, bhv_vname_t *, xfs_ino_t *,

781
fs/xfs/xfs_vfsops.c
Просмотреть файл

@ -58,17 +58,12 @@
#include "xfs_vfsops.h"
int
int __init
xfs_init(void)
{
extern kmem_zone_t *xfs_bmap_free_item_zone;
extern kmem_zone_t *xfs_btree_cur_zone;
extern kmem_zone_t *xfs_trans_zone;
extern kmem_zone_t *xfs_buf_item_zone;
extern kmem_zone_t *xfs_dabuf_zone;
#ifdef XFS_DABUF_DEBUG
extern lock_t xfs_dabuf_global_lock;
spinlock_init(&xfs_dabuf_global_lock, "xfsda");
extern spinlock_t xfs_dabuf_global_lock;
spin_lock_init(&xfs_dabuf_global_lock);
#endif
/*
@ -152,18 +147,12 @@ xfs_init(void)
return 0;
}
void
void __exit
xfs_cleanup(void)
{
extern kmem_zone_t *xfs_bmap_free_item_zone;
extern kmem_zone_t *xfs_btree_cur_zone;
extern kmem_zone_t *xfs_inode_zone;
extern kmem_zone_t *xfs_trans_zone;
extern kmem_zone_t *xfs_da_state_zone;
extern kmem_zone_t *xfs_dabuf_zone;
extern kmem_zone_t *xfs_efd_zone;
extern kmem_zone_t *xfs_efi_zone;
extern kmem_zone_t *xfs_buf_item_zone;
extern kmem_zone_t *xfs_icluster_zone;
xfs_cleanup_procfs();
@ -449,8 +438,6 @@ xfs_mount(
if (error)
return error;
mp->m_io_ops = xfs_iocore_xfs;
if (args->flags & XFSMNT_QUIET)
flags |= XFS_MFSI_QUIET;
@ -544,7 +531,7 @@ xfs_mount(
if ((error = xfs_filestream_mount(mp)))
goto error2;
error = XFS_IOINIT(mp, args, flags);
error = xfs_mountfs(mp, flags);
if (error)
goto error2;
@ -694,7 +681,7 @@ xfs_quiesce_fs(
* care of the metadata. New transactions are already blocked, so we need to
* wait for any remaining transactions to drain out before proceding.
*/
STATIC void
void
xfs_attr_quiesce(
xfs_mount_t *mp)
{
@ -820,80 +807,6 @@ fscorrupt_out2:
return XFS_ERROR(EFSCORRUPTED);
}
/*
* xfs_root extracts the root vnode from a vfs.
*
* vfsp -- the vfs struct for the desired file system
* vpp -- address of the caller's vnode pointer which should be
* set to the desired fs root vnode
*/
int
xfs_root(
xfs_mount_t *mp,
bhv_vnode_t **vpp)
{
bhv_vnode_t *vp;
vp = XFS_ITOV(mp->m_rootip);
VN_HOLD(vp);
*vpp = vp;
return 0;
}
/*
* xfs_statvfs
*
* Fill in the statvfs structure for the given file system. We use
* the superblock lock in the mount structure to ensure a consistent
* snapshot of the counters returned.
*/
int
xfs_statvfs(
xfs_mount_t *mp,
bhv_statvfs_t *statp,
bhv_vnode_t *vp)
{
__uint64_t fakeinos;
xfs_extlen_t lsize;
xfs_sb_t *sbp;
unsigned long s;
sbp = &(mp->m_sb);
statp->f_type = XFS_SB_MAGIC;
xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
s = XFS_SB_LOCK(mp);
statp->f_bsize = sbp->sb_blocksize;
lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0;
statp->f_blocks = sbp->sb_dblocks - lsize;
statp->f_bfree = statp->f_bavail =
sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
fakeinos = statp->f_bfree << sbp->sb_inopblog;
#if XFS_BIG_INUMS
fakeinos += mp->m_inoadd;
#endif
statp->f_files =
MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER);
if (mp->m_maxicount)
#if XFS_BIG_INUMS
if (!mp->m_inoadd)
#endif
statp->f_files = min_t(typeof(statp->f_files),
statp->f_files,
mp->m_maxicount);
statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
XFS_SB_UNLOCK(mp, s);
xfs_statvfs_fsid(statp, mp);
statp->f_namelen = MAXNAMELEN - 1;
if (vp)
XFS_QM_DQSTATVFS(xfs_vtoi(vp), statp);
return 0;
}
/*
* xfs_sync flushes any pending I/O to file system vfsp.
*
@ -981,8 +894,6 @@ xfs_sync_inodes(
int *bypassed)
{
xfs_inode_t *ip = NULL;
xfs_inode_t *ip_next;
xfs_buf_t *bp;
bhv_vnode_t *vp = NULL;
int error;
int last_error;
@ -992,7 +903,6 @@ xfs_sync_inodes(
boolean_t mount_locked;
boolean_t vnode_refed;
int preempt;
xfs_dinode_t *dip;
xfs_iptr_t *ipointer;
#ifdef DEBUG
boolean_t ipointer_in = B_FALSE;
@ -1045,6 +955,8 @@ xfs_sync_inodes(
#define XFS_PREEMPT_MASK 0x7f
ASSERT(!(flags & SYNC_BDFLUSH));
if (bypassed)
*bypassed = 0;
if (mp->m_flags & XFS_MOUNT_RDONLY)
@ -1057,7 +969,7 @@ xfs_sync_inodes(
ipointer = (xfs_iptr_t *)kmem_zalloc(sizeof(xfs_iptr_t), KM_SLEEP);
fflag = XFS_B_ASYNC; /* default is don't wait */
if (flags & (SYNC_BDFLUSH | SYNC_DELWRI))
if (flags & SYNC_DELWRI)
fflag = XFS_B_DELWRI;
if (flags & SYNC_WAIT)
fflag = 0; /* synchronous overrides all */
@ -1146,24 +1058,6 @@ xfs_sync_inodes(
return 0;
}
/*
* If this is just vfs_sync() or pflushd() calling
* then we can skip inodes for which it looks like
* there is nothing to do. Since we don't have the
* inode locked this is racy, but these are periodic
* calls so it doesn't matter. For the others we want
* to know for sure, so we at least try to lock them.
*/
if (flags & SYNC_BDFLUSH) {
if (((ip->i_itemp == NULL) ||
!(ip->i_itemp->ili_format.ilf_fields &
XFS_ILOG_ALL)) &&
(ip->i_update_core == 0)) {
ip = ip->i_mnext;
continue;
}
}
/*
* Try to lock without sleeping. We're out of order with
* the inode list lock here, so if we fail we need to drop
@ -1181,7 +1075,7 @@ xfs_sync_inodes(
* it.
*/
if (xfs_ilock_nowait(ip, lock_flags) == 0) {
if ((flags & SYNC_BDFLUSH) || (vp == NULL)) {
if (vp == NULL) {
ip = ip->i_mnext;
continue;
}
@ -1242,162 +1136,29 @@ xfs_sync_inodes(
xfs_ilock(ip, XFS_ILOCK_SHARED);
}
if (flags & SYNC_BDFLUSH) {
if ((flags & SYNC_ATTR) &&
((ip->i_update_core) ||
((ip->i_itemp != NULL) &&
(ip->i_itemp->ili_format.ilf_fields != 0)))) {
/* Insert marker and drop lock if not already
* done.
*/
if (mount_locked) {
(ip->i_update_core ||
(ip->i_itemp && ip->i_itemp->ili_format.ilf_fields))) {
if (mount_locked)
IPOINTER_INSERT(ip, mp);
}
/*
* We don't want the periodic flushing of the
* inodes by vfs_sync() to interfere with
* I/O to the file, especially read I/O
* where it is only the access time stamp
* that is being flushed out. To prevent
* long periods where we have both inode
* locks held shared here while reading the
* inode's buffer in from disk, we drop the
* inode lock while reading in the inode
* buffer. We have to release the buffer
* and reacquire the inode lock so that they
* are acquired in the proper order (inode
* locks first). The buffer will go at the
* end of the lru chain, though, so we can
* expect it to still be there when we go
* for it again in xfs_iflush().
*/
if ((xfs_ipincount(ip) == 0) &&
xfs_iflock_nowait(ip)) {
xfs_ifunlock(ip);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
error = xfs_itobp(mp, NULL, ip,
&dip, &bp, 0, 0);
if (!error) {
xfs_buf_relse(bp);
} else {
/* Bailing out, remove the
* marker and free it.
*/
XFS_MOUNT_ILOCK(mp);
IPOINTER_REMOVE(ip, mp);
XFS_MOUNT_IUNLOCK(mp);
ASSERT(!(lock_flags &
XFS_IOLOCK_SHARED));
kmem_free(ipointer,
sizeof(xfs_iptr_t));
return (0);
}
/*
* Since we dropped the inode lock,
* the inode may have been reclaimed.
* Therefore, we reacquire the mount
* lock and check to see if we were the
* inode reclaimed. If this happened
* then the ipointer marker will no
* longer point back at us. In this
* case, move ip along to the inode
* after the marker, remove the marker
* and continue.
*/
XFS_MOUNT_ILOCK(mp);
mount_locked = B_TRUE;
if (ip != ipointer->ip_mprev) {
IPOINTER_REMOVE(ip, mp);
ASSERT(!vnode_refed);
ASSERT(!(lock_flags &
XFS_IOLOCK_SHARED));
continue;
}
ASSERT(ip->i_mount == mp);
if (xfs_ilock_nowait(ip,
XFS_ILOCK_SHARED) == 0) {
ASSERT(ip->i_mount == mp);
/*
* We failed to reacquire
* the inode lock without
* sleeping, so just skip
* the inode for now. We
* clear the ILOCK bit from
* the lock_flags so that we
* won't try to drop a lock
* we don't hold below.
*/
lock_flags &= ~XFS_ILOCK_SHARED;
IPOINTER_REMOVE(ip_next, mp);
} else if ((xfs_ipincount(ip) == 0) &&
xfs_iflock_nowait(ip)) {
ASSERT(ip->i_mount == mp);
/*
* Since this is vfs_sync()
* calling we only flush the
* inode out if we can lock
* it without sleeping and
* it is not pinned. Drop
* the mount lock here so
* that we don't hold it for
* too long. We already have
* a marker in the list here.
*/
XFS_MOUNT_IUNLOCK(mp);
mount_locked = B_FALSE;
error = xfs_iflush(ip,
XFS_IFLUSH_DELWRI);
} else {
ASSERT(ip->i_mount == mp);
IPOINTER_REMOVE(ip_next, mp);
}
}
}
} else {
if ((flags & SYNC_ATTR) &&
((ip->i_update_core) ||
((ip->i_itemp != NULL) &&
(ip->i_itemp->ili_format.ilf_fields != 0)))) {
if (mount_locked) {
IPOINTER_INSERT(ip, mp);
}
if (flags & SYNC_WAIT) {
xfs_iflock(ip);
error = xfs_iflush(ip,
XFS_IFLUSH_SYNC);
} else {
error = xfs_iflush(ip, XFS_IFLUSH_SYNC);
/*
* If we can't acquire the flush
* lock, then the inode is already
* being flushed so don't bother
* waiting. If we can lock it then
* do a delwri flush so we can
* combine multiple inode flushes
* in each disk write.
* If we can't acquire the flush lock, then the inode
* is already being flushed so don't bother waiting.
*
* If we can lock it then do a delwri flush so we can
* combine multiple inode flushes in each disk write.
*/
if (xfs_iflock_nowait(ip)) {
error = xfs_iflush(ip,
XFS_IFLUSH_DELWRI);
}
else if (bypassed)
} else if (xfs_iflock_nowait(ip)) {
error = xfs_iflush(ip, XFS_IFLUSH_DELWRI);
} else if (bypassed) {
(*bypassed)++;
}
}
}
if (lock_flags != 0) {
xfs_iunlock(ip, lock_flags);
@ -1627,499 +1388,3 @@ xfs_syncsub(
return XFS_ERROR(last_error);
}
/*
* xfs_vget - called by DMAPI and NFSD to get vnode from file handle
*/
int
xfs_vget(
xfs_mount_t *mp,
bhv_vnode_t **vpp,
xfs_fid_t *xfid)
{
xfs_inode_t *ip;
int error;
xfs_ino_t ino;
unsigned int igen;
/*
* Invalid. Since handles can be created in user space and passed in
* via gethandle(), this is not cause for a panic.
*/
if (xfid->fid_len != sizeof(*xfid) - sizeof(xfid->fid_len))
return XFS_ERROR(EINVAL);
ino = xfid->fid_ino;
igen = xfid->fid_gen;
/*
* NFS can sometimes send requests for ino 0. Fail them gracefully.
*/
if (ino == 0)
return XFS_ERROR(ESTALE);
error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
if (error) {
*vpp = NULL;
return error;
}
if (ip == NULL) {
*vpp = NULL;
return XFS_ERROR(EIO);
}
if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
xfs_iput_new(ip, XFS_ILOCK_SHARED);
*vpp = NULL;
return XFS_ERROR(ENOENT);
}
*vpp = XFS_ITOV(ip);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return 0;
}
#define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */
#define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */
#define MNTOPT_LOGDEV "logdev" /* log device */
#define MNTOPT_RTDEV "rtdev" /* realtime I/O device */
#define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */
#define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */
#define MNTOPT_INO64 "ino64" /* force inodes into 64-bit range */
#define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */
#define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */
#define MNTOPT_SUNIT "sunit" /* data volume stripe unit */
#define MNTOPT_SWIDTH "swidth" /* data volume stripe width */
#define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */
#define MNTOPT_MTPT "mtpt" /* filesystem mount point */
#define MNTOPT_GRPID "grpid" /* group-ID from parent directory */
#define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */
#define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */
#define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */
#define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */
#define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */
#define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and
* unwritten extent conversion */
#define MNTOPT_NOBARRIER "nobarrier" /* .. disable */
#define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */
#define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */
#define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */
#define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */
#define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */
#define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes
* in stat(). */
#define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */
#define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */
#define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */
#define MNTOPT_QUOTA "quota" /* disk quotas (user) */
#define MNTOPT_NOQUOTA "noquota" /* no quotas */
#define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */
#define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */
#define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */
#define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */
#define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */
#define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */
#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
#define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */
#define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */
#define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */
#define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */
STATIC unsigned long
suffix_strtoul(char *s, char **endp, unsigned int base)
{
int last, shift_left_factor = 0;
char *value = s;
last = strlen(value) - 1;
if (value[last] == 'K' || value[last] == 'k') {
shift_left_factor = 10;
value[last] = '\0';
}
if (value[last] == 'M' || value[last] == 'm') {
shift_left_factor = 20;
value[last] = '\0';
}
if (value[last] == 'G' || value[last] == 'g') {
shift_left_factor = 30;
value[last] = '\0';
}
return simple_strtoul((const char *)s, endp, base) << shift_left_factor;
}
int
xfs_parseargs(
struct xfs_mount *mp,
char *options,
struct xfs_mount_args *args,
int update)
{
char *this_char, *value, *eov;
int dsunit, dswidth, vol_dsunit, vol_dswidth;
int iosize;
int ikeep = 0;
args->flags |= XFSMNT_BARRIER;
args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
if (!options)
goto done;
iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0;
while ((this_char = strsep(&options, ",")) != NULL) {
if (!*this_char)
continue;
if ((value = strchr(this_char, '=')) != NULL)
*value++ = 0;
if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
args->logbufs = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
args->logbufsize = suffix_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
strncpy(args->logname, value, MAXNAMELEN);
} else if (!strcmp(this_char, MNTOPT_MTPT)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
strncpy(args->mtpt, value, MAXNAMELEN);
} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
strncpy(args->rtname, value, MAXNAMELEN);
} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
iosize = simple_strtoul(value, &eov, 10);
args->flags |= XFSMNT_IOSIZE;
args->iosizelog = (uint8_t) iosize;
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
iosize = suffix_strtoul(value, &eov, 10);
args->flags |= XFSMNT_IOSIZE;
args->iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_GRPID) ||
!strcmp(this_char, MNTOPT_BSDGROUPS)) {
mp->m_flags |= XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
!strcmp(this_char, MNTOPT_SYSVGROUPS)) {
mp->m_flags &= ~XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
args->flags |= XFSMNT_WSYNC;
} else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
args->flags |= XFSMNT_OSYNCISOSYNC;
} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
args->flags |= XFSMNT_NORECOVERY;
} else if (!strcmp(this_char, MNTOPT_INO64)) {
args->flags |= XFSMNT_INO64;
#if !XFS_BIG_INUMS
cmn_err(CE_WARN,
"XFS: %s option not allowed on this system",
this_char);
return EINVAL;
#endif
} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
args->flags |= XFSMNT_NOALIGN;
} else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
args->flags |= XFSMNT_SWALLOC;
} else if (!strcmp(this_char, MNTOPT_SUNIT)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
dsunit = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
dswidth = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
args->flags &= ~XFSMNT_32BITINODES;
#if !XFS_BIG_INUMS
cmn_err(CE_WARN,
"XFS: %s option not allowed on this system",
this_char);
return EINVAL;
#endif
} else if (!strcmp(this_char, MNTOPT_NOUUID)) {
args->flags |= XFSMNT_NOUUID;
} else if (!strcmp(this_char, MNTOPT_BARRIER)) {
args->flags |= XFSMNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
args->flags &= ~XFSMNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
ikeep = 1;
args->flags &= ~XFSMNT_IDELETE;
} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
args->flags |= XFSMNT_IDELETE;
} else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_ATTR2)) {
args->flags |= XFSMNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
args->flags &= ~XFSMNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
args->flags2 |= XFSMNT2_FILESTREAMS;
} else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
} else if (!strcmp(this_char, MNTOPT_QUOTA) ||
!strcmp(this_char, MNTOPT_UQUOTA) ||
!strcmp(this_char, MNTOPT_USRQUOTA)) {
args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
!strcmp(this_char, MNTOPT_UQUOTANOENF)) {
args->flags |= XFSMNT_UQUOTA;
args->flags &= ~XFSMNT_UQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
!strcmp(this_char, MNTOPT_PRJQUOTA)) {
args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
args->flags |= XFSMNT_PQUOTA;
args->flags &= ~XFSMNT_PQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
!strcmp(this_char, MNTOPT_GRPQUOTA)) {
args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
args->flags |= XFSMNT_GQUOTA;
args->flags &= ~XFSMNT_GQUOTAENF;
} else if (!strcmp(this_char, MNTOPT_DMAPI)) {
args->flags |= XFSMNT_DMAPI;
} else if (!strcmp(this_char, MNTOPT_XDSM)) {
args->flags |= XFSMNT_DMAPI;
} else if (!strcmp(this_char, MNTOPT_DMI)) {
args->flags |= XFSMNT_DMAPI;
} else if (!strcmp(this_char, "ihashsize")) {
cmn_err(CE_WARN,
"XFS: ihashsize no longer used, option is deprecated.");
} else if (!strcmp(this_char, "osyncisdsync")) {
/* no-op, this is now the default */
cmn_err(CE_WARN,
"XFS: osyncisdsync is now the default, option is deprecated.");
} else if (!strcmp(this_char, "irixsgid")) {
cmn_err(CE_WARN,
"XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
} else {
cmn_err(CE_WARN,
"XFS: unknown mount option [%s].", this_char);
return EINVAL;
}
}
if (args->flags & XFSMNT_NORECOVERY) {
if ((mp->m_flags & XFS_MOUNT_RDONLY) == 0) {
cmn_err(CE_WARN,
"XFS: no-recovery mounts must be read-only.");
return EINVAL;
}
}
if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth options incompatible with the noalign option");
return EINVAL;
}
if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) {
cmn_err(CE_WARN,
"XFS: cannot mount with both project and group quota");
return EINVAL;
}
if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') {
printk("XFS: %s option needs the mount point option as well\n",
MNTOPT_DMAPI);
return EINVAL;
}
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth must be specified together");
return EINVAL;
}
if (dsunit && (dswidth % dsunit != 0)) {
cmn_err(CE_WARN,
"XFS: stripe width (%d) must be a multiple of the stripe unit (%d)",
dswidth, dsunit);
return EINVAL;
}
/*
* Applications using DMI filesystems often expect the
* inode generation number to be monotonically increasing.
* If we delete inode chunks we break this assumption, so
* keep unused inode chunks on disk for DMI filesystems
* until we come up with a better solution.
* Note that if "ikeep" or "noikeep" mount options are
* supplied, then they are honored.
*/
if (!(args->flags & XFSMNT_DMAPI) && !ikeep)
args->flags |= XFSMNT_IDELETE;
if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
if (dsunit) {
args->sunit = dsunit;
args->flags |= XFSMNT_RETERR;
} else {
args->sunit = vol_dsunit;
}
dswidth ? (args->swidth = dswidth) :
(args->swidth = vol_dswidth);
} else {
args->sunit = args->swidth = 0;
}
done:
if (args->flags & XFSMNT_32BITINODES)
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
if (args->flags2)
args->flags |= XFSMNT_FLAGS2;
return 0;
}
int
xfs_showargs(
struct xfs_mount *mp,
struct seq_file *m)
{
static struct proc_xfs_info {
int flag;
char *str;
} xfs_info[] = {
/* the few simple ones we can get from the mount struct */
{ XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC },
{ XFS_MOUNT_INO64, "," MNTOPT_INO64 },
{ XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN },
{ XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC },
{ XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID },
{ XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY },
{ XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC },
{ 0, NULL }
};
struct proc_xfs_info *xfs_infop;
for (xfs_infop = xfs_info; xfs_infop->flag; xfs_infop++) {
if (mp->m_flags & xfs_infop->flag)
seq_puts(m, xfs_infop->str);
}
if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk",
(int)(1 << mp->m_writeio_log) >> 10);
if (mp->m_logbufs > 0)
seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);
if (mp->m_logbsize > 0)
seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10);
if (mp->m_logname)
seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname);
if (mp->m_rtname)
seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname);
if (mp->m_dalign > 0)
seq_printf(m, "," MNTOPT_SUNIT "=%d",
(int)XFS_FSB_TO_BB(mp, mp->m_dalign));
if (mp->m_swidth > 0)
seq_printf(m, "," MNTOPT_SWIDTH "=%d",
(int)XFS_FSB_TO_BB(mp, mp->m_swidth));
if (!(mp->m_flags & XFS_MOUNT_IDELETE))
seq_printf(m, "," MNTOPT_IKEEP);
if (!(mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE))
seq_printf(m, "," MNTOPT_LARGEIO);
if (!(mp->m_flags & XFS_MOUNT_SMALL_INUMS))
seq_printf(m, "," MNTOPT_64BITINODE);
if (mp->m_flags & XFS_MOUNT_GRPID)
seq_printf(m, "," MNTOPT_GRPID);
if (mp->m_qflags & XFS_UQUOTA_ACCT) {
if (mp->m_qflags & XFS_UQUOTA_ENFD)
seq_puts(m, "," MNTOPT_USRQUOTA);
else
seq_puts(m, "," MNTOPT_UQUOTANOENF);
}
if (mp->m_qflags & XFS_PQUOTA_ACCT) {
if (mp->m_qflags & XFS_OQUOTA_ENFD)
seq_puts(m, "," MNTOPT_PRJQUOTA);
else
seq_puts(m, "," MNTOPT_PQUOTANOENF);
}
if (mp->m_qflags & XFS_GQUOTA_ACCT) {
if (mp->m_qflags & XFS_OQUOTA_ENFD)
seq_puts(m, "," MNTOPT_GRPQUOTA);
else
seq_puts(m, "," MNTOPT_GQUOTANOENF);
}
if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
seq_puts(m, "," MNTOPT_NOQUOTA);
if (mp->m_flags & XFS_MOUNT_DMAPI)
seq_puts(m, "," MNTOPT_DMAPI);
return 0;
}
/*
* Second stage of a freeze. The data is already frozen so we only
* need to take care of themetadata. Once that's done write a dummy
* record to dirty the log in case of a crash while frozen.
*/
void
xfs_freeze(
xfs_mount_t *mp)
{
xfs_attr_quiesce(mp);
xfs_fs_log_dummy(mp);
}

9
fs/xfs/xfs_vfsops.h
Просмотреть файл

@ -13,16 +13,9 @@ int xfs_mount(struct xfs_mount *mp, struct xfs_mount_args *args,
int xfs_unmount(struct xfs_mount *mp, int flags, struct cred *credp);
int xfs_mntupdate(struct xfs_mount *mp, int *flags,
struct xfs_mount_args *args);
int xfs_root(struct xfs_mount *mp, bhv_vnode_t **vpp);
int xfs_statvfs(struct xfs_mount *mp, struct kstatfs *statp,
bhv_vnode_t *vp);
int xfs_sync(struct xfs_mount *mp, int flags);
int xfs_vget(struct xfs_mount *mp, bhv_vnode_t **vpp, struct xfs_fid *xfid);
int xfs_parseargs(struct xfs_mount *mp, char *options,
struct xfs_mount_args *args, int update);
int xfs_showargs(struct xfs_mount *mp, struct seq_file *m);
void xfs_freeze(struct xfs_mount *mp);
void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
int lnnum);
void xfs_attr_quiesce(struct xfs_mount *mp);
#endif /* _XFS_VFSOPS_H */

165
fs/xfs/xfs_vnodeops.c
Просмотреть файл

@ -88,7 +88,7 @@ xfs_getattr(
bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@ -136,7 +136,7 @@ xfs_getattr(
default:
vap->va_rdev = 0;
if (!(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
if (!(XFS_IS_REALTIME_INODE(ip))) {
vap->va_blocksize = xfs_preferred_iosize(mp);
} else {
@ -228,7 +228,7 @@ xfs_setattr(
int file_owner;
int need_iolock = 1;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
if (mp->m_flags & XFS_MOUNT_RDONLY)
return XFS_ERROR(EROFS);
@ -508,7 +508,7 @@ xfs_setattr(
*/
if ((ip->i_d.di_nextents || ip->i_delayed_blks) &&
(mask & XFS_AT_XFLAGS) &&
(ip->i_d.di_flags & XFS_DIFLAG_REALTIME) !=
(XFS_IS_REALTIME_INODE(ip)) !=
(vap->va_xflags & XFS_XFLAG_REALTIME)) {
code = XFS_ERROR(EINVAL); /* EFBIG? */
goto error_return;
@ -520,7 +520,7 @@ xfs_setattr(
if ((mask & XFS_AT_EXTSIZE) && vap->va_extsize != 0) {
xfs_extlen_t size;
if ((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ||
if (XFS_IS_REALTIME_INODE(ip) ||
((mask & XFS_AT_XFLAGS) &&
(vap->va_xflags & XFS_XFLAG_REALTIME))) {
size = mp->m_sb.sb_rextsize <<
@ -804,12 +804,8 @@ xfs_setattr(
if (vap->va_xflags & XFS_XFLAG_EXTSZINHERIT)
di_flags |= XFS_DIFLAG_EXTSZINHERIT;
} else if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
if (vap->va_xflags & XFS_XFLAG_REALTIME) {
if (vap->va_xflags & XFS_XFLAG_REALTIME)
di_flags |= XFS_DIFLAG_REALTIME;
ip->i_iocore.io_flags |= XFS_IOCORE_RT;
} else {
ip->i_iocore.io_flags &= ~XFS_IOCORE_RT;
}
if (vap->va_xflags & XFS_XFLAG_EXTSIZE)
di_flags |= XFS_DIFLAG_EXTSIZE;
}
@ -902,28 +898,6 @@ xfs_setattr(
return code;
}
/*
* xfs_access
* Null conversion from vnode mode bits to inode mode bits, as in efs.
*/
int
xfs_access(
xfs_inode_t *ip,
int mode,
cred_t *credp)
{
int error;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_ilock(ip, XFS_ILOCK_SHARED);
error = xfs_iaccess(ip, mode, credp);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return error;
}
/*
* The maximum pathlen is 1024 bytes. Since the minimum file system
* blocksize is 512 bytes, we can get a max of 2 extents back from
@ -987,7 +961,7 @@ xfs_readlink(
int pathlen;
int error = 0;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@ -1033,7 +1007,7 @@ xfs_fsync(
int error;
int log_flushed = 0, changed = 1;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
ASSERT(start >= 0 && stop >= -1);
@ -1149,7 +1123,7 @@ xfs_fsync(
* If this inode is on the RT dev we need to flush that
* cache as well.
*/
if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
if (XFS_IS_REALTIME_INODE(ip))
xfs_blkdev_issue_flush(ip->i_mount->m_rtdev_targp);
}
@ -1188,7 +1162,7 @@ xfs_free_eofblocks(
nimaps = 1;
xfs_ilock(ip, XFS_ILOCK_SHARED);
error = XFS_BMAPI(mp, NULL, &ip->i_iocore, end_fsb, map_len, 0,
error = xfs_bmapi(NULL, ip, end_fsb, map_len, 0,
NULL, 0, &imap, &nimaps, NULL, NULL);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
@ -1562,9 +1536,6 @@ xfs_release(
error = xfs_free_eofblocks(mp, ip, XFS_FREE_EOF_LOCK);
if (error)
return error;
/* Update linux inode block count after free above */
vn_to_inode(vp)->i_blocks = XFS_FSB_TO_BB(mp,
ip->i_d.di_nblocks + ip->i_delayed_blks);
}
}
@ -1592,7 +1563,7 @@ xfs_inactive(
int error;
int truncate;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
/*
* If the inode is already free, then there can be nothing
@ -1638,9 +1609,6 @@ xfs_inactive(
error = xfs_free_eofblocks(mp, ip, XFS_FREE_EOF_LOCK);
if (error)
return VN_INACTIVE_CACHE;
/* Update linux inode block count after free above */
vn_to_inode(vp)->i_blocks = XFS_FSB_TO_BB(mp,
ip->i_d.di_nblocks + ip->i_delayed_blks);
}
goto out;
}
@ -1805,7 +1773,7 @@ xfs_lookup(
int error;
uint lock_mode;
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return XFS_ERROR(EIO);
@ -1814,7 +1782,7 @@ xfs_lookup(
error = xfs_dir_lookup_int(dp, lock_mode, dentry, &e_inum, &ip);
if (!error) {
*vpp = XFS_ITOV(ip);
ITRACE(ip);
xfs_itrace_ref(ip);
}
xfs_iunlock_map_shared(dp, lock_mode);
return error;
@ -1848,7 +1816,7 @@ xfs_create(
int namelen;
ASSERT(!*vpp);
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
namelen = VNAMELEN(dentry);
@ -1930,7 +1898,7 @@ xfs_create(
goto error_return;
goto abort_return;
}
ITRACE(ip);
xfs_itrace_ref(ip);
/*
* At this point, we've gotten a newly allocated inode.
@ -2098,7 +2066,7 @@ again:
e_inum = ip->i_ino;
ITRACE(ip);
xfs_itrace_ref(ip);
/*
* We want to lock in increasing inum. Since we've already
@ -2321,7 +2289,7 @@ xfs_remove(
uint resblks;
int namelen;
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@ -2364,9 +2332,8 @@ xfs_remove(
dm_di_mode = ip->i_d.di_mode;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
ITRACE(ip);
xfs_itrace_entry(ip);
xfs_itrace_ref(ip);
error = XFS_QM_DQATTACH(mp, dp, 0);
if (!error && dp != ip)
@ -2498,8 +2465,7 @@ xfs_remove(
if (link_zero && xfs_inode_is_filestream(ip))
xfs_filestream_deassociate(ip);
vn_trace_exit(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_exit(ip);
IRELE(ip);
/* Fall through to std_return with error = 0 */
@ -2562,8 +2528,8 @@ xfs_link(
char *target_name = VNAME(dentry);
int target_namelen;
vn_trace_entry(tdp, __FUNCTION__, (inst_t *)__return_address);
vn_trace_entry(xfs_vtoi(src_vp), __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(tdp);
xfs_itrace_entry(xfs_vtoi(src_vp));
target_namelen = VNAMELEN(dentry);
ASSERT(!VN_ISDIR(src_vp));
@ -2744,7 +2710,7 @@ xfs_mkdir(
/* Return through std_return after this point. */
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
mp = dp->i_mount;
udqp = gdqp = NULL;
@ -2810,7 +2776,7 @@ xfs_mkdir(
goto error_return;
goto abort_return;
}
ITRACE(cdp);
xfs_itrace_ref(cdp);
/*
* Now we add the directory inode to the transaction.
@ -2936,7 +2902,7 @@ xfs_rmdir(
int last_cdp_link;
uint resblks;
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@ -3041,7 +3007,7 @@ xfs_rmdir(
VN_HOLD(dir_vp);
}
ITRACE(cdp);
xfs_itrace_ref(cdp);
xfs_trans_ijoin(tp, cdp, XFS_ILOCK_EXCL);
ASSERT(cdp->i_d.di_nlink >= 2);
@ -3189,8 +3155,7 @@ xfs_symlink(
ip = NULL;
tp = NULL;
vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(dp);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@ -3317,7 +3282,7 @@ xfs_symlink(
goto error_return;
goto error1;
}
ITRACE(ip);
xfs_itrace_ref(ip);
/*
* An error after we've joined dp to the transaction will result in the
@ -3465,27 +3430,6 @@ std_return:
goto std_return;
}
int
xfs_fid2(
xfs_inode_t *ip,
xfs_fid_t *xfid)
{
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfid->fid_len = sizeof(xfs_fid_t) - sizeof(xfid->fid_len);
xfid->fid_pad = 0;
/*
* use memcpy because the inode is a long long and there's no
* assurance that xfid->fid_ino is properly aligned.
*/
memcpy(&xfid->fid_ino, &ip->i_ino, sizeof(xfid->fid_ino));
xfid->fid_gen = ip->i_d.di_gen;
return 0;
}
int
xfs_rwlock(
xfs_inode_t *ip,
@ -3558,11 +3502,11 @@ xfs_inode_flush(
if (iip && iip->ili_last_lsn) {
xlog_t *log = mp->m_log;
xfs_lsn_t sync_lsn;
int s, log_flags = XFS_LOG_FORCE;
int log_flags = XFS_LOG_FORCE;
s = GRANT_LOCK(log);
spin_lock(&log->l_grant_lock);
sync_lsn = log->l_last_sync_lsn;
GRANT_UNLOCK(log, s);
spin_unlock(&log->l_grant_lock);
if ((XFS_LSN_CMP(iip->ili_last_lsn, sync_lsn) > 0)) {
if (flags & FLUSH_SYNC)
@ -3637,8 +3581,8 @@ xfs_set_dmattrs(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
ip->i_iocore.io_dmevmask = ip->i_d.di_dmevmask = evmask;
ip->i_iocore.io_dmstate = ip->i_d.di_dmstate = state;
ip->i_d.di_dmevmask = evmask;
ip->i_d.di_dmstate = state;
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
IHOLD(ip);
@ -3653,7 +3597,7 @@ xfs_reclaim(
{
bhv_vnode_t *vp = XFS_ITOV(ip);
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
ASSERT(!VN_MAPPED(vp));
@ -3871,7 +3815,7 @@ xfs_alloc_file_space(
int committed;
int error;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
@ -3976,7 +3920,7 @@ retry:
* Issue the xfs_bmapi() call to allocate the blocks
*/
XFS_BMAP_INIT(&free_list, &firstfsb);
error = XFS_BMAPI(mp, tp, &ip->i_iocore, startoffset_fsb,
error = xfs_bmapi(tp, ip, startoffset_fsb,
allocatesize_fsb, bmapi_flag,
&firstfsb, 0, imapp, &nimaps,
&free_list, NULL);
@ -4052,13 +3996,13 @@ xfs_zero_remaining_bytes(
int error = 0;
bp = xfs_buf_get_noaddr(mp->m_sb.sb_blocksize,
ip->i_d.di_flags & XFS_DIFLAG_REALTIME ?
XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp);
for (offset = startoff; offset <= endoff; offset = lastoffset + 1) {
offset_fsb = XFS_B_TO_FSBT(mp, offset);
nimap = 1;
error = XFS_BMAPI(mp, NULL, &ip->i_iocore, offset_fsb, 1, 0,
error = xfs_bmapi(NULL, ip, offset_fsb, 1, 0,
NULL, 0, &imap, &nimap, NULL, NULL);
if (error || nimap < 1)
break;
@ -4141,7 +4085,7 @@ xfs_free_file_space(
vp = XFS_ITOV(ip);
mp = ip->i_mount;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
return error;
@ -4149,7 +4093,7 @@ xfs_free_file_space(
error = 0;
if (len <= 0) /* if nothing being freed */
return error;
rt = (ip->i_d.di_flags & XFS_DIFLAG_REALTIME);
rt = XFS_IS_REALTIME_INODE(ip);
startoffset_fsb = XFS_B_TO_FSB(mp, offset);
end_dmi_offset = offset + len;
endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset);
@ -4172,15 +4116,12 @@ xfs_free_file_space(
vn_iowait(ip); /* wait for the completion of any pending DIOs */
}
rounding = max_t(uint, 1 << mp->m_sb.sb_blocklog, NBPP);
rounding = max_t(uint, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE);
ioffset = offset & ~(rounding - 1);
if (VN_CACHED(vp) != 0) {
xfs_inval_cached_trace(&ip->i_iocore, ioffset, -1,
ctooff(offtoct(ioffset)), -1);
error = xfs_flushinval_pages(ip,
ctooff(offtoct(ioffset)),
-1, FI_REMAPF_LOCKED);
xfs_inval_cached_trace(ip, ioffset, -1, ioffset, -1);
error = xfs_flushinval_pages(ip, ioffset, -1, FI_REMAPF_LOCKED);
if (error)
goto out_unlock_iolock;
}
@ -4193,7 +4134,7 @@ xfs_free_file_space(
*/
if (rt && !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
nimap = 1;
error = XFS_BMAPI(mp, NULL, &ip->i_iocore, startoffset_fsb,
error = xfs_bmapi(NULL, ip, startoffset_fsb,
1, 0, NULL, 0, &imap, &nimap, NULL, NULL);
if (error)
goto out_unlock_iolock;
@ -4208,7 +4149,7 @@ xfs_free_file_space(
startoffset_fsb += mp->m_sb.sb_rextsize - mod;
}
nimap = 1;
error = XFS_BMAPI(mp, NULL, &ip->i_iocore, endoffset_fsb - 1,
error = xfs_bmapi(NULL, ip, endoffset_fsb - 1,
1, 0, NULL, 0, &imap, &nimap, NULL, NULL);
if (error)
goto out_unlock_iolock;
@ -4284,7 +4225,7 @@ xfs_free_file_space(
* issue the bunmapi() call to free the blocks
*/
XFS_BMAP_INIT(&free_list, &firstfsb);
error = XFS_BUNMAPI(mp, tp, &ip->i_iocore, startoffset_fsb,
error = xfs_bunmapi(tp, ip, startoffset_fsb,
endoffset_fsb - startoffset_fsb,
0, 2, &firstfsb, &free_list, NULL, &done);
if (error) {
@ -4347,23 +4288,11 @@ xfs_change_file_space(
xfs_trans_t *tp;
bhv_vattr_t va;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
xfs_itrace_entry(ip);
/*
* must be a regular file and have write permission
*/
if (!S_ISREG(ip->i_d.di_mode))
return XFS_ERROR(EINVAL);
xfs_ilock(ip, XFS_ILOCK_SHARED);
if ((error = xfs_iaccess(ip, S_IWUSR, credp))) {
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return error;
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
switch (bf->l_whence) {
case 0: /*SEEK_SET*/
break;

2
fs/xfs/xfs_vnodeops.h
Просмотреть файл

@ -18,7 +18,6 @@ int xfs_open(struct xfs_inode *ip);
int xfs_getattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags);
int xfs_setattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags,
struct cred *credp);
int xfs_access(struct xfs_inode *ip, int mode, struct cred *credp);
int xfs_readlink(struct xfs_inode *ip, char *link);
int xfs_fsync(struct xfs_inode *ip, int flag, xfs_off_t start,
xfs_off_t stop);
@ -39,7 +38,6 @@ int xfs_readdir(struct xfs_inode *dp, void *dirent, size_t bufsize,
int xfs_symlink(struct xfs_inode *dp, bhv_vname_t *dentry,
char *target_path, mode_t mode, bhv_vnode_t **vpp,
struct cred *credp);
int xfs_fid2(struct xfs_inode *ip, struct xfs_fid *xfid);
int xfs_rwlock(struct xfs_inode *ip, bhv_vrwlock_t locktype);
void xfs_rwunlock(struct xfs_inode *ip, bhv_vrwlock_t locktype);
int xfs_inode_flush(struct xfs_inode *ip, int flags);