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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: (24 commits)
  [XFS] Fix build failure after enabling CONFIG_XFS_DEBUG
  [XFS] remove dmapi cruft in xfs_file.c
  [XFS] remove sendfile leftovers
  [XFS] allow enabling CONFIG_XFS_DEBUG
  [XFS] Don't initialise new inode generation numbers to zero
  [XFS] Fix check for block zero access in xfs_write_iomap_allocate()
  [XFS] Don't double count reserved block changes on UP.
  [XFS] remove xfs_log_ticket_zone on rmmod
  [XFS] fix non-smp xfs build
  [XFS] Fix broken HAVE_SPLICE removal commit.
  [XFS] kill XFS_ICSB_SB_LOCKED
  [XFS] split xfs_icsb_balance_counter
  [XFS] Add xfs_icsb_sync_counters_locked for when m_sb_lock already held
  [XFS] Cleanup xfs_attr a bit with xfs_name and remove cred
  [XFS] kill usesless IHOLD calls in xfs_remove and xfs_rmdir
  [XFS] kill parent == child checks in xfs_remove and xfs_rmdir
  [XFS] kill usesless IHOLD calls in xfs_rename
  [XFS] remove manual lookup from xfs_rename and simplify locking
  [XFS] shrink mrlock_t
  [XFS] simplify xfs_lookup
  ...
This commit is contained in:
Linus Torvalds 2008-04-29 20:34:17 -07:00
Родитель a94a630a4c adaa693b84
Коммит c15a2434ed
40 изменённых файлов: 403 добавлений и 946 удалений
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13
fs/xfs/Kconfig
Просмотреть файл

@ -64,3 +64,16 @@ config XFS_RT
See the xfs man page in section 5 for additional information.
If unsure, say N.
config XFS_DEBUG
bool "XFS Debugging support (EXPERIMENTAL)"
depends on XFS_FS && EXPERIMENTAL
help
Say Y here to get an XFS build with many debugging features,
including ASSERT checks, function wrappers around macros,
and extra sanity-checking functions in various code paths.
Note that the resulting code will be HUGE and SLOW, and probably
not useful unless you are debugging a particular problem.
Say N unless you are an XFS developer, or you play one on TV.

60
fs/xfs/linux-2.6/mrlock.h
Просмотреть файл

@ -20,29 +20,24 @@
#include <linux/rwsem.h>
enum { MR_NONE, MR_ACCESS, MR_UPDATE };
typedef struct {
struct rw_semaphore mr_lock;
#ifdef DEBUG
int mr_writer;
#endif
} mrlock_t;
#ifdef DEBUG
#define mrinit(mrp, name) \
do { (mrp)->mr_writer = 0; init_rwsem(&(mrp)->mr_lock); } while (0)
#else
#define mrinit(mrp, name) \
do { init_rwsem(&(mrp)->mr_lock); } while (0)
#endif
#define mrlock_init(mrp, t,n,s) mrinit(mrp, n)
#define mrfree(mrp) do { } while (0)
static inline void mraccess(mrlock_t *mrp)
{
down_read(&mrp->mr_lock);
}
static inline void mrupdate(mrlock_t *mrp)
{
down_write(&mrp->mr_lock);
mrp->mr_writer = 1;
}
static inline void mraccess_nested(mrlock_t *mrp, int subclass)
{
down_read_nested(&mrp->mr_lock, subclass);
@ -51,10 +46,11 @@ static inline void mraccess_nested(mrlock_t *mrp, int subclass)
static inline void mrupdate_nested(mrlock_t *mrp, int subclass)
{
down_write_nested(&mrp->mr_lock, subclass);
#ifdef DEBUG
mrp->mr_writer = 1;
#endif
}
static inline int mrtryaccess(mrlock_t *mrp)
{
return down_read_trylock(&mrp->mr_lock);
@ -64,39 +60,31 @@ static inline int mrtryupdate(mrlock_t *mrp)
{
if (!down_write_trylock(&mrp->mr_lock))
return 0;
#ifdef DEBUG
mrp->mr_writer = 1;
#endif
return 1;
}
static inline void mrunlock(mrlock_t *mrp)
static inline void mrunlock_excl(mrlock_t *mrp)
{
if (mrp->mr_writer) {
mrp->mr_writer = 0;
up_write(&mrp->mr_lock);
} else {
up_read(&mrp->mr_lock);
}
#ifdef DEBUG
mrp->mr_writer = 0;
#endif
up_write(&mrp->mr_lock);
}
static inline void mrunlock_shared(mrlock_t *mrp)
{
up_read(&mrp->mr_lock);
}
static inline void mrdemote(mrlock_t *mrp)
{
#ifdef DEBUG
mrp->mr_writer = 0;
#endif
downgrade_write(&mrp->mr_lock);
}
#ifdef DEBUG
/*
* Debug-only routine, without some platform-specific asm code, we can
* now only answer requests regarding whether we hold the lock for write
* (reader state is outside our visibility, we only track writer state).
* Note: means !ismrlocked would give false positives, so don't do that.
*/
static inline int ismrlocked(mrlock_t *mrp, int type)
{
if (mrp && type == MR_UPDATE)
return mrp->mr_writer;
return 1;
}
#endif
#endif /* __XFS_SUPPORT_MRLOCK_H__ */

2
fs/xfs/linux-2.6/xfs_buf.c
Просмотреть файл

@ -886,7 +886,7 @@ int
xfs_buf_lock_value(
xfs_buf_t *bp)
{
return atomic_read(&bp->b_sema.count);
return bp->b_sema.count;
}
#endif

2
fs/xfs/linux-2.6/xfs_export.c
Просмотреть файл

@ -133,7 +133,7 @@ xfs_nfs_get_inode(
if (!ip)
return ERR_PTR(-EIO);
if (!ip->i_d.di_mode || ip->i_d.di_gen != generation) {
if (ip->i_d.di_gen != generation) {
xfs_iput_new(ip, XFS_ILOCK_SHARED);
return ERR_PTR(-ENOENT);
}

75
fs/xfs/linux-2.6/xfs_file.c
Просмотреть файл

@ -43,9 +43,6 @@
#include <linux/smp_lock.h>
static struct vm_operations_struct xfs_file_vm_ops;
#ifdef CONFIG_XFS_DMAPI
static struct vm_operations_struct xfs_dmapi_file_vm_ops;
#endif
STATIC_INLINE ssize_t
__xfs_file_read(
@ -202,22 +199,6 @@ xfs_file_fsync(
(xfs_off_t)0, (xfs_off_t)-1);
}
#ifdef CONFIG_XFS_DMAPI
STATIC int
xfs_vm_fault(
struct vm_area_struct *vma,
struct vm_fault *vmf)
{
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
bhv_vnode_t *vp = vn_from_inode(inode);
ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI);
if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), vma, 0))
return VM_FAULT_SIGBUS;
return filemap_fault(vma, vmf);
}
#endif /* CONFIG_XFS_DMAPI */
/*
* Unfortunately we can't just use the clean and simple readdir implementation
* below, because nfs might call back into ->lookup from the filldir callback
@ -386,11 +367,6 @@ xfs_file_mmap(
vma->vm_ops = &xfs_file_vm_ops;
vma->vm_flags |= VM_CAN_NONLINEAR;
#ifdef CONFIG_XFS_DMAPI
if (XFS_M(filp->f_path.dentry->d_inode->i_sb)->m_flags & XFS_MOUNT_DMAPI)
vma->vm_ops = &xfs_dmapi_file_vm_ops;
#endif /* CONFIG_XFS_DMAPI */
file_accessed(filp);
return 0;
}
@ -437,47 +413,6 @@ xfs_file_ioctl_invis(
return error;
}
#ifdef CONFIG_XFS_DMAPI
#ifdef HAVE_VMOP_MPROTECT
STATIC int
xfs_vm_mprotect(
struct vm_area_struct *vma,
unsigned int newflags)
{
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
struct xfs_mount *mp = XFS_M(inode->i_sb);
int error = 0;
if (mp->m_flags & XFS_MOUNT_DMAPI) {
if ((vma->vm_flags & VM_MAYSHARE) &&
(newflags & VM_WRITE) && !(vma->vm_flags & VM_WRITE))
error = XFS_SEND_MMAP(mp, vma, VM_WRITE);
}
return error;
}
#endif /* HAVE_VMOP_MPROTECT */
#endif /* CONFIG_XFS_DMAPI */
#ifdef HAVE_FOP_OPEN_EXEC
/* If the user is attempting to execute a file that is offline then
* we have to trigger a DMAPI READ event before the file is marked as busy
* otherwise the invisible I/O will not be able to write to the file to bring
* it back online.
*/
STATIC int
xfs_file_open_exec(
struct inode *inode)
{
struct xfs_mount *mp = XFS_M(inode->i_sb);
struct xfs_inode *ip = XFS_I(inode);
if (unlikely(mp->m_flags & XFS_MOUNT_DMAPI) &&
DM_EVENT_ENABLED(ip, DM_EVENT_READ))
return -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, 0, 0, 0, NULL);
return 0;
}
#endif /* HAVE_FOP_OPEN_EXEC */
/*
* mmap()d file has taken write protection fault and is being made
* writable. We can set the page state up correctly for a writable
@ -546,13 +481,3 @@ static struct vm_operations_struct xfs_file_vm_ops = {
.fault = filemap_fault,
.page_mkwrite = xfs_vm_page_mkwrite,
};
#ifdef CONFIG_XFS_DMAPI
static struct vm_operations_struct xfs_dmapi_file_vm_ops = {
.fault = xfs_vm_fault,
.page_mkwrite = xfs_vm_page_mkwrite,
#ifdef HAVE_VMOP_MPROTECT
.mprotect = xfs_vm_mprotect,
#endif
};
#endif /* CONFIG_XFS_DMAPI */

8
fs/xfs/linux-2.6/xfs_ioctl.c
Просмотреть файл

@ -238,7 +238,7 @@ xfs_vget_fsop_handlereq(
return error;
if (ip == NULL)
return XFS_ERROR(EIO);
if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
if (ip->i_d.di_gen != igen) {
xfs_iput_new(ip, XFS_ILOCK_SHARED);
return XFS_ERROR(ENOENT);
}
@ -505,14 +505,14 @@ xfs_attrmulti_attr_get(
{
char *kbuf;
int error = EFAULT;
if (*len > XATTR_SIZE_MAX)
return EINVAL;
kbuf = kmalloc(*len, GFP_KERNEL);
if (!kbuf)
return ENOMEM;
error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags, NULL);
error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags);
if (error)
goto out_kfree;
@ -546,7 +546,7 @@ xfs_attrmulti_attr_set(
if (copy_from_user(kbuf, ubuf, len))
goto out_kfree;
error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags);
out_kfree:

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

@ -511,7 +511,8 @@ xfs_vn_rename(
xfs_dentry_to_name(&nname, ndentry);
error = xfs_rename(XFS_I(odir), &oname, XFS_I(odentry->d_inode),
XFS_I(ndir), &nname);
XFS_I(ndir), &nname, new_inode ?
XFS_I(new_inode) : NULL);
if (likely(!error)) {
if (new_inode)
xfs_validate_fields(new_inode);

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

@ -99,7 +99,6 @@
/*
* Feature macros (disable/enable)
*/
#define HAVE_SPLICE /* a splice(2) exists in 2.6, but not in 2.4 */
#ifdef CONFIG_SMP
#define HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */
#else

21
fs/xfs/linux-2.6/xfs_lrw.c
Просмотреть файл

@ -394,7 +394,7 @@ xfs_zero_last_block(
int error = 0;
xfs_bmbt_irec_t imap;
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
zero_offset = XFS_B_FSB_OFFSET(mp, isize);
if (zero_offset == 0) {
@ -425,14 +425,14 @@ 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(ip, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
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(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_ilock(ip, XFS_ILOCK_EXCL);
ASSERT(error >= 0);
return error;
}
@ -465,8 +465,7 @@ xfs_zero_eof(
int error = 0;
xfs_bmbt_irec_t imap;
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT(offset > isize);
/*
@ -475,8 +474,7 @@ xfs_zero_eof(
*/
error = xfs_zero_last_block(ip, offset, isize);
if (error) {
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
return error;
}
@ -507,8 +505,7 @@ xfs_zero_eof(
error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb,
0, NULL, 0, &imap, &nimaps, NULL, NULL);
if (error) {
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
return error;
}
ASSERT(nimaps > 0);
@ -532,7 +529,7 @@ 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(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
zero_off = XFS_FSB_TO_B(mp, start_zero_fsb);
zero_len = XFS_FSB_TO_B(mp, imap.br_blockcount);
@ -548,13 +545,13 @@ xfs_zero_eof(
start_zero_fsb = imap.br_startoff + imap.br_blockcount;
ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_ilock(ip, XFS_ILOCK_EXCL);
}
return 0;
out_lock:
xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
xfs_ilock(ip, XFS_ILOCK_EXCL);
ASSERT(error >= 0);
return error;
}

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

@ -50,7 +50,6 @@ struct xfs_iomap;
#define XFS_INVAL_CACHED 18
#define XFS_DIORD_ENTER 19
#define XFS_DIOWR_ENTER 20
#define XFS_SENDFILE_ENTER 21
#define XFS_WRITEPAGE_ENTER 22
#define XFS_RELEASEPAGE_ENTER 23
#define XFS_INVALIDPAGE_ENTER 24

2
fs/xfs/linux-2.6/xfs_super.c
Просмотреть файл

@ -1181,7 +1181,7 @@ xfs_fs_statfs(
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);
xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
spin_lock(&mp->m_sb_lock);
statp->f_bsize = sbp->sb_blocksize;

24
fs/xfs/linux-2.6/xfs_vnode.h
Просмотреть файл

@ -25,12 +25,6 @@ struct attrlist_cursor_kern;
typedef struct inode bhv_vnode_t;
#define VN_ISLNK(vp) S_ISLNK((vp)->i_mode)
#define VN_ISREG(vp) S_ISREG((vp)->i_mode)
#define VN_ISDIR(vp) S_ISDIR((vp)->i_mode)
#define VN_ISCHR(vp) S_ISCHR((vp)->i_mode)
#define VN_ISBLK(vp) S_ISBLK((vp)->i_mode)
/*
* Vnode to Linux inode mapping.
*/
@ -151,24 +145,6 @@ typedef struct bhv_vattr {
XFS_AT_TYPE|XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|\
XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_GENCOUNT)
/*
* Modes.
*/
#define VSUID S_ISUID /* set user id on execution */
#define VSGID S_ISGID /* set group id on execution */
#define VSVTX S_ISVTX /* save swapped text even after use */
#define VREAD S_IRUSR /* read, write, execute permissions */
#define VWRITE S_IWUSR
#define VEXEC S_IXUSR
#define MODEMASK S_IALLUGO /* mode bits plus permission bits */
/*
* Check whether mandatory file locking is enabled.
*/
#define MANDLOCK(vp, mode) \
(VN_ISREG(vp) && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
extern void vn_init(void);
extern int vn_revalidate(bhv_vnode_t *);

4
fs/xfs/quota/xfs_dquot.c
Просмотреть файл

@ -933,7 +933,7 @@ xfs_qm_dqget(
type == XFS_DQ_PROJ ||
type == XFS_DQ_GROUP);
if (ip) {
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
if (type == XFS_DQ_USER)
ASSERT(ip->i_udquot == NULL);
else
@ -1088,7 +1088,7 @@ xfs_qm_dqget(
xfs_qm_mplist_unlock(mp);
XFS_DQ_HASH_UNLOCK(h);
dqret:
ASSERT((ip == NULL) || XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT((ip == NULL) || xfs_isilocked(ip, XFS_ILOCK_EXCL));
xfs_dqtrace_entry(dqp, "DQGET DONE");
*O_dqpp = dqp;
return (0);

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

@ -670,7 +670,7 @@ xfs_qm_dqattach_one(
xfs_dquot_t *dqp;
int error;
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
error = 0;
/*
* See if we already have it in the inode itself. IO_idqpp is
@ -874,7 +874,7 @@ xfs_qm_dqattach(
return 0;
ASSERT((flags & XFS_QMOPT_ILOCKED) == 0 ||
XFS_ISLOCKED_INODE_EXCL(ip));
xfs_isilocked(ip, XFS_ILOCK_EXCL));
if (! (flags & XFS_QMOPT_ILOCKED))
xfs_ilock(ip, XFS_ILOCK_EXCL);
@ -888,7 +888,8 @@ xfs_qm_dqattach(
goto done;
nquotas++;
}
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
if (XFS_IS_OQUOTA_ON(mp)) {
error = XFS_IS_GQUOTA_ON(mp) ?
xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP,
@ -913,7 +914,7 @@ xfs_qm_dqattach(
* This WON'T, in general, result in a thrash.
*/
if (nquotas == 2) {
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(ip->i_udquot);
ASSERT(ip->i_gdquot);
@ -956,7 +957,7 @@ xfs_qm_dqattach(
#ifdef QUOTADEBUG
else
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
#endif
return error;
}
@ -1291,7 +1292,7 @@ xfs_qm_dqget_noattach(
xfs_mount_t *mp;
xfs_dquot_t *udqp, *gdqp;
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
mp = ip->i_mount;
udqp = NULL;
gdqp = NULL;
@ -1392,7 +1393,7 @@ xfs_qm_qino_alloc(
* Keep an extra reference to this quota inode. This inode is
* locked exclusively and joined to the transaction already.
*/
ASSERT(XFS_ISLOCKED_INODE_EXCL(*ip));
ASSERT(xfs_isilocked(*ip, XFS_ILOCK_EXCL));
VN_HOLD(XFS_ITOV((*ip)));
/*
@ -1737,12 +1738,6 @@ xfs_qm_dqusage_adjust(
return error;
}
if (ip->i_d.di_mode == 0) {
xfs_iput_new(ip, XFS_ILOCK_EXCL);
*res = BULKSTAT_RV_NOTHING;
return XFS_ERROR(ENOENT);
}
/*
* Obtain the locked dquots. In case of an error (eg. allocation
* fails for ENOSPC), we return the negative of the error number
@ -2563,7 +2558,7 @@ xfs_qm_vop_chown(
uint bfield = XFS_IS_REALTIME_INODE(ip) ?
XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT;
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
/* old dquot */
@ -2607,7 +2602,7 @@ xfs_qm_vop_chown_reserve(
uint delblks, blkflags, prjflags = 0;
xfs_dquot_t *unresudq, *unresgdq, *delblksudq, *delblksgdq;
ASSERT(XFS_ISLOCKED_INODE(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
mp = ip->i_mount;
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
@ -2717,7 +2712,7 @@ xfs_qm_vop_dqattach_and_dqmod_newinode(
if (!XFS_IS_QUOTA_ON(tp->t_mountp))
return;
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp));
if (udqp) {

6
fs/xfs/quota/xfs_qm_syscalls.c
Просмотреть файл

@ -1366,12 +1366,6 @@ xfs_qm_internalqcheck_adjust(
return (error);
}
if (ip->i_d.di_mode == 0) {
xfs_iput_new(ip, lock_flags);
*res = BULKSTAT_RV_NOTHING;
return XFS_ERROR(ENOENT);
}
/*
* This inode can have blocks after eof which can get released
* when we send it to inactive. Since we don't check the dquot

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

@ -27,11 +27,6 @@
/* Number of dquots that fit in to a dquot block */
#define XFS_QM_DQPERBLK(mp) ((mp)->m_quotainfo->qi_dqperchunk)
#define XFS_ISLOCKED_INODE(ip) (ismrlocked(&(ip)->i_lock, \
MR_UPDATE | MR_ACCESS) != 0)
#define XFS_ISLOCKED_INODE_EXCL(ip) (ismrlocked(&(ip)->i_lock, \
MR_UPDATE) != 0)
#define XFS_DQ_IS_ADDEDTO_TRX(t, d) ((d)->q_transp == (t))
#define XFS_QI_MPLRECLAIMS(mp) ((mp)->m_quotainfo->qi_dqreclaims)

2
fs/xfs/quota/xfs_trans_dquot.c
Просмотреть файл

@ -834,7 +834,7 @@ xfs_trans_reserve_quota_nblks(
ASSERT(ip->i_ino != mp->m_sb.sb_uquotino);
ASSERT(ip->i_ino != mp->m_sb.sb_gquotino);
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
XFS_TRANS_DQ_RES_RTBLKS ||

2
fs/xfs/xfs.h
Просмотреть файл

@ -22,7 +22,7 @@
#define STATIC
#define DEBUG 1
#define XFS_BUF_LOCK_TRACKING 1
#define QUOTADEBUG 1
/* #define QUOTADEBUG 1 */
#endif
#ifdef CONFIG_XFS_TRACE

53
fs/xfs/xfs_acl.c
Просмотреть файл

@ -72,7 +72,7 @@ xfs_acl_vhasacl_default(
{
int error;
if (!VN_ISDIR(vp))
if (!S_ISDIR(vp->i_mode))
return 0;
xfs_acl_get_attr(vp, NULL, _ACL_TYPE_DEFAULT, ATTR_KERNOVAL, &error);
return (error == 0);
@ -238,15 +238,8 @@ xfs_acl_vget(
error = EINVAL;
goto out;
}
if (kind == _ACL_TYPE_ACCESS) {
bhv_vattr_t va;
va.va_mask = XFS_AT_MODE;
error = xfs_getattr(xfs_vtoi(vp), &va, 0);
if (error)
goto out;
xfs_acl_sync_mode(va.va_mode, xfs_acl);
}
if (kind == _ACL_TYPE_ACCESS)
xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, xfs_acl);
error = -posix_acl_xfs_to_xattr(xfs_acl, ext_acl, size);
}
out:
@ -341,14 +334,15 @@ xfs_acl_iaccess(
{
xfs_acl_t *acl;
int rval;
struct xfs_name acl_name = {SGI_ACL_FILE, SGI_ACL_FILE_SIZE};
if (!(_ACL_ALLOC(acl)))
return -1;
/* If the file has no ACL return -1. */
rval = sizeof(xfs_acl_t);
if (xfs_attr_fetch(ip, SGI_ACL_FILE, SGI_ACL_FILE_SIZE,
(char *)acl, &rval, ATTR_ROOT | ATTR_KERNACCESS, cr)) {
if (xfs_attr_fetch(ip, &acl_name, (char *)acl, &rval,
ATTR_ROOT | ATTR_KERNACCESS)) {
_ACL_FREE(acl);
return -1;
}
@ -373,23 +367,15 @@ xfs_acl_allow_set(
bhv_vnode_t *vp,
int kind)
{
xfs_inode_t *ip = xfs_vtoi(vp);
bhv_vattr_t va;
int error;
if (vp->i_flags & (S_IMMUTABLE|S_APPEND))
return EPERM;
if (kind == _ACL_TYPE_DEFAULT && !VN_ISDIR(vp))
if (kind == _ACL_TYPE_DEFAULT && !S_ISDIR(vp->i_mode))
return ENOTDIR;
if (vp->i_sb->s_flags & MS_RDONLY)
return EROFS;
va.va_mask = XFS_AT_UID;
error = xfs_getattr(ip, &va, 0);
if (error)
return error;
if (va.va_uid != current->fsuid && !capable(CAP_FOWNER))
if (xfs_vtoi(vp)->i_d.di_uid != current->fsuid && !capable(CAP_FOWNER))
return EPERM;
return error;
return 0;
}
/*
@ -594,7 +580,7 @@ xfs_acl_get_attr(
*error = xfs_attr_get(xfs_vtoi(vp),
kind == _ACL_TYPE_ACCESS ?
SGI_ACL_FILE : SGI_ACL_DEFAULT,
(char *)aclp, &len, flags, sys_cred);
(char *)aclp, &len, flags);
if (*error || (flags & ATTR_KERNOVAL))
return;
xfs_acl_get_endian(aclp);
@ -643,7 +629,6 @@ xfs_acl_vtoacl(
xfs_acl_t *access_acl,
xfs_acl_t *default_acl)
{
bhv_vattr_t va;
int error = 0;
if (access_acl) {
@ -652,16 +637,10 @@ xfs_acl_vtoacl(
* be obtained for some reason, invalidate the access ACL.
*/
xfs_acl_get_attr(vp, access_acl, _ACL_TYPE_ACCESS, 0, &error);
if (!error) {
/* Got the ACL, need the mode... */
va.va_mask = XFS_AT_MODE;
error = xfs_getattr(xfs_vtoi(vp), &va, 0);
}
if (error)
access_acl->acl_cnt = XFS_ACL_NOT_PRESENT;
else /* We have a good ACL and the file mode, synchronize. */
xfs_acl_sync_mode(va.va_mode, access_acl);
xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, access_acl);
}
if (default_acl) {
@ -719,7 +698,7 @@ xfs_acl_inherit(
* If the new file is a directory, its default ACL is a copy of
* the containing directory's default ACL.
*/
if (VN_ISDIR(vp))
if (S_ISDIR(vp->i_mode))
xfs_acl_set_attr(vp, pdaclp, _ACL_TYPE_DEFAULT, &error);
if (!error && !basicperms)
xfs_acl_set_attr(vp, cacl, _ACL_TYPE_ACCESS, &error);
@ -744,7 +723,7 @@ xfs_acl_setmode(
bhv_vattr_t va;
xfs_acl_entry_t *ap;
xfs_acl_entry_t *gap = NULL;
int i, error, nomask = 1;
int i, nomask = 1;
*basicperms = 1;
@ -756,11 +735,7 @@ xfs_acl_setmode(
* mode. The m:: bits take precedence over the g:: bits.
*/
va.va_mask = XFS_AT_MODE;
error = xfs_getattr(xfs_vtoi(vp), &va, 0);
if (error)
return error;
va.va_mask = XFS_AT_MODE;
va.va_mode = xfs_vtoi(vp)->i_d.di_mode;
va.va_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
ap = acl->acl_entry;
for (i = 0; i < acl->acl_cnt; ++i) {

93
fs/xfs/xfs_attr.c
Просмотреть файл

@ -101,14 +101,28 @@ STATIC int xfs_attr_rmtval_remove(xfs_da_args_t *args);
ktrace_t *xfs_attr_trace_buf;
#endif
STATIC int
xfs_attr_name_to_xname(
struct xfs_name *xname,
const char *aname)
{
if (!aname)
return EINVAL;
xname->name = aname;
xname->len = strlen(aname);
if (xname->len >= MAXNAMELEN)
return EFAULT; /* match IRIX behaviour */
return 0;
}
/*========================================================================
* Overall external interface routines.
*========================================================================*/
int
xfs_attr_fetch(xfs_inode_t *ip, const char *name, int namelen,
char *value, int *valuelenp, int flags, struct cred *cred)
xfs_attr_fetch(xfs_inode_t *ip, struct xfs_name *name,
char *value, int *valuelenp, int flags)
{
xfs_da_args_t args;
int error;
@ -122,8 +136,8 @@ xfs_attr_fetch(xfs_inode_t *ip, const char *name, int namelen,
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
args.name = name;
args.namelen = namelen;
args.name = name->name;
args.namelen = name->len;
args.value = value;
args.valuelen = *valuelenp;
args.flags = flags;
@ -162,31 +176,29 @@ xfs_attr_get(
const char *name,
char *value,
int *valuelenp,
int flags,
cred_t *cred)
int flags)
{
int error, namelen;
int error;
struct xfs_name xname;
XFS_STATS_INC(xs_attr_get);
if (!name)
return(EINVAL);
namelen = strlen(name);
if (namelen >= MAXNAMELEN)
return(EFAULT); /* match IRIX behaviour */
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return(EIO);
error = xfs_attr_name_to_xname(&xname, name);
if (error)
return error;
xfs_ilock(ip, XFS_ILOCK_SHARED);
error = xfs_attr_fetch(ip, name, namelen, value, valuelenp, flags, cred);
error = xfs_attr_fetch(ip, &xname, value, valuelenp, flags);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return(error);
}
int
xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
char *value, int valuelen, int flags)
STATIC int
xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
char *value, int valuelen, int flags)
{
xfs_da_args_t args;
xfs_fsblock_t firstblock;
@ -209,7 +221,7 @@ xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
*/
if (XFS_IFORK_Q(dp) == 0) {
int sf_size = sizeof(xfs_attr_sf_hdr_t) +
XFS_ATTR_SF_ENTSIZE_BYNAME(namelen, valuelen);
XFS_ATTR_SF_ENTSIZE_BYNAME(name->len, valuelen);
if ((error = xfs_bmap_add_attrfork(dp, sf_size, rsvd)))
return(error);
@ -219,8 +231,8 @@ xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
args.name = name;
args.namelen = namelen;
args.name = name->name;
args.namelen = name->len;
args.value = value;
args.valuelen = valuelen;
args.flags = flags;
@ -236,7 +248,7 @@ xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
* Determine space new attribute will use, and if it would be
* "local" or "remote" (note: local != inline).
*/
size = xfs_attr_leaf_newentsize(namelen, valuelen,
size = xfs_attr_leaf_newentsize(name->len, valuelen,
mp->m_sb.sb_blocksize, &local);
nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
@ -429,26 +441,27 @@ xfs_attr_set(
int valuelen,
int flags)
{
int namelen;
namelen = strlen(name);
if (namelen >= MAXNAMELEN)
return EFAULT; /* match IRIX behaviour */
int error;
struct xfs_name xname;
XFS_STATS_INC(xs_attr_set);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
return xfs_attr_set_int(dp, name, namelen, value, valuelen, flags);
error = xfs_attr_name_to_xname(&xname, name);
if (error)
return error;
return xfs_attr_set_int(dp, &xname, value, valuelen, flags);
}
/*
* Generic handler routine to remove a name from an attribute list.
* Transitions attribute list from Btree to shortform as necessary.
*/
int
xfs_attr_remove_int(xfs_inode_t *dp, const char *name, int namelen, int flags)
STATIC int
xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
{
xfs_da_args_t args;
xfs_fsblock_t firstblock;
@ -460,8 +473,8 @@ xfs_attr_remove_int(xfs_inode_t *dp, const char *name, int namelen, int flags)
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
args.name = name;
args.namelen = namelen;
args.name = name->name;
args.namelen = name->len;
args.flags = flags;
args.hashval = xfs_da_hashname(args.name, args.namelen);
args.dp = dp;
@ -575,17 +588,18 @@ xfs_attr_remove(
const char *name,
int flags)
{
int namelen;
namelen = strlen(name);
if (namelen >= MAXNAMELEN)
return EFAULT; /* match IRIX behaviour */
int error;
struct xfs_name xname;
XFS_STATS_INC(xs_attr_remove);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
error = xfs_attr_name_to_xname(&xname, name);
if (error)
return error;
xfs_ilock(dp, XFS_ILOCK_SHARED);
if (XFS_IFORK_Q(dp) == 0 ||
(dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
@ -595,10 +609,10 @@ xfs_attr_remove(
}
xfs_iunlock(dp, XFS_ILOCK_SHARED);
return xfs_attr_remove_int(dp, name, namelen, flags);
return xfs_attr_remove_int(dp, &xname, flags);
}
int /* error */
STATIC int
xfs_attr_list_int(xfs_attr_list_context_t *context)
{
int error;
@ -2522,8 +2536,7 @@ attr_generic_get(
{
int error, asize = size;
error = xfs_attr_get(xfs_vtoi(vp), name, data,
&asize, xflags, NULL);
error = xfs_attr_get(xfs_vtoi(vp), name, data, &asize, xflags);
if (!error)
return asize;
return -error;

6
fs/xfs/xfs_attr.h
Просмотреть файл

@ -158,14 +158,10 @@ struct xfs_da_args;
/*
* Overall external interface routines.
*/
int xfs_attr_set_int(struct xfs_inode *, const char *, int, char *, int, int);
int xfs_attr_remove_int(struct xfs_inode *, const char *, int, int);
int xfs_attr_list_int(struct xfs_attr_list_context *);
int xfs_attr_inactive(struct xfs_inode *dp);
int xfs_attr_shortform_getvalue(struct xfs_da_args *);
int xfs_attr_fetch(struct xfs_inode *, const char *, int,
char *, int *, int, struct cred *);
int xfs_attr_fetch(struct xfs_inode *, struct xfs_name *, char *, int *, int);
int xfs_attr_rmtval_get(struct xfs_da_args *args);
#endif /* __XFS_ATTR_H__ */

1
fs/xfs/xfs_bmap.c
Просмотреть файл

@ -4074,7 +4074,6 @@ xfs_bmap_add_attrfork(
error2:
xfs_bmap_cancel(&flist);
error1:
ASSERT(ismrlocked(&ip->i_lock,MR_UPDATE));
xfs_iunlock(ip, XFS_ILOCK_EXCL);
error0:
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);

4
fs/xfs/xfs_dfrag.c
Просмотреть файл

@ -162,7 +162,7 @@ xfs_swap_extents(
ips[1] = ip;
}
xfs_lock_inodes(ips, 2, 0, lock_flags);
xfs_lock_inodes(ips, 2, lock_flags);
locked = 1;
/* Verify that both files have the same format */
@ -265,7 +265,7 @@ xfs_swap_extents(
locked = 0;
goto error0;
}
xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
/*
* Count the number of extended attribute blocks

8
fs/xfs/xfs_fsops.c
Просмотреть файл

@ -462,7 +462,7 @@ xfs_fs_counts(
xfs_mount_t *mp,
xfs_fsop_counts_t *cnt)
{
xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
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;
@ -524,7 +524,7 @@ xfs_reserve_blocks(
*/
retry:
spin_lock(&mp->m_sb_lock);
xfs_icsb_sync_counters_flags(mp, XFS_ICSB_SB_LOCKED);
xfs_icsb_sync_counters_locked(mp, 0);
/*
* If our previous reservation was larger than the current value,
@ -552,11 +552,8 @@ retry:
mp->m_resblks += free;
mp->m_resblks_avail += free;
fdblks_delta = -free;
mp->m_sb.sb_fdblocks = XFS_ALLOC_SET_ASIDE(mp);
} else {
fdblks_delta = -delta;
mp->m_sb.sb_fdblocks =
lcounter + XFS_ALLOC_SET_ASIDE(mp);
mp->m_resblks = request;
mp->m_resblks_avail += delta;
}
@ -587,7 +584,6 @@ out:
if (error == ENOSPC)
goto retry;
}
return 0;
}

10
fs/xfs/xfs_ialloc.c
Просмотреть файл

@ -147,6 +147,7 @@ xfs_ialloc_ag_alloc(
int version; /* inode version number to use */
int isaligned = 0; /* inode allocation at stripe unit */
/* boundary */
unsigned int gen;
args.tp = tp;
args.mp = tp->t_mountp;
@ -290,6 +291,14 @@ xfs_ialloc_ag_alloc(
else
version = XFS_DINODE_VERSION_1;
/*
* Seed the new inode cluster with a random generation number. This
* prevents short-term reuse of generation numbers if a chunk is
* freed and then immediately reallocated. We use random numbers
* rather than a linear progression to prevent the next generation
* number from being easily guessable.
*/
gen = random32();
for (j = 0; j < nbufs; j++) {
/*
* Get the block.
@ -309,6 +318,7 @@ xfs_ialloc_ag_alloc(
free = XFS_MAKE_IPTR(args.mp, fbuf, i);
free->di_core.di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
free->di_core.di_version = version;
free->di_core.di_gen = cpu_to_be32(gen);
free->di_next_unlinked = cpu_to_be32(NULLAGINO);
xfs_ialloc_log_di(tp, fbuf, i,
XFS_DI_CORE_BITS | XFS_DI_NEXT_UNLINKED);

142
fs/xfs/xfs_iget.c
Просмотреть файл

@ -593,8 +593,9 @@ xfs_iunlock_map_shared(
* XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL
*/
void
xfs_ilock(xfs_inode_t *ip,
uint lock_flags)
xfs_ilock(
xfs_inode_t *ip,
uint lock_flags)
{
/*
* You can't set both SHARED and EXCL for the same lock,
@ -607,16 +608,16 @@ xfs_ilock(xfs_inode_t *ip,
(XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_DEP_MASK)) == 0);
if (lock_flags & XFS_IOLOCK_EXCL) {
if (lock_flags & XFS_IOLOCK_EXCL)
mrupdate_nested(&ip->i_iolock, XFS_IOLOCK_DEP(lock_flags));
} else if (lock_flags & XFS_IOLOCK_SHARED) {
else if (lock_flags & XFS_IOLOCK_SHARED)
mraccess_nested(&ip->i_iolock, XFS_IOLOCK_DEP(lock_flags));
}
if (lock_flags & XFS_ILOCK_EXCL) {
if (lock_flags & XFS_ILOCK_EXCL)
mrupdate_nested(&ip->i_lock, XFS_ILOCK_DEP(lock_flags));
} else if (lock_flags & XFS_ILOCK_SHARED) {
else if (lock_flags & XFS_ILOCK_SHARED)
mraccess_nested(&ip->i_lock, XFS_ILOCK_DEP(lock_flags));
}
xfs_ilock_trace(ip, 1, lock_flags, (inst_t *)__return_address);
}
@ -631,15 +632,12 @@ xfs_ilock(xfs_inode_t *ip,
* lock_flags -- this parameter indicates the inode's locks to be
* to be locked. See the comment for xfs_ilock() for a list
* of valid values.
*
*/
int
xfs_ilock_nowait(xfs_inode_t *ip,
uint lock_flags)
xfs_ilock_nowait(
xfs_inode_t *ip,
uint lock_flags)
{
int iolocked;
int ilocked;
/*
* You can't set both SHARED and EXCL for the same lock,
* and only XFS_IOLOCK_SHARED, XFS_IOLOCK_EXCL, XFS_ILOCK_SHARED,
@ -651,37 +649,30 @@ xfs_ilock_nowait(xfs_inode_t *ip,
(XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_DEP_MASK)) == 0);
iolocked = 0;
if (lock_flags & XFS_IOLOCK_EXCL) {
iolocked = mrtryupdate(&ip->i_iolock);
if (!iolocked) {
return 0;
}
if (!mrtryupdate(&ip->i_iolock))
goto out;
} else if (lock_flags & XFS_IOLOCK_SHARED) {
iolocked = mrtryaccess(&ip->i_iolock);
if (!iolocked) {
return 0;
}
if (!mrtryaccess(&ip->i_iolock))
goto out;
}
if (lock_flags & XFS_ILOCK_EXCL) {
ilocked = mrtryupdate(&ip->i_lock);
if (!ilocked) {
if (iolocked) {
mrunlock(&ip->i_iolock);
}
return 0;
}
if (!mrtryupdate(&ip->i_lock))
goto out_undo_iolock;
} else if (lock_flags & XFS_ILOCK_SHARED) {
ilocked = mrtryaccess(&ip->i_lock);
if (!ilocked) {
if (iolocked) {
mrunlock(&ip->i_iolock);
}
return 0;
}
if (!mrtryaccess(&ip->i_lock))
goto out_undo_iolock;
}
xfs_ilock_trace(ip, 2, lock_flags, (inst_t *)__return_address);
return 1;
out_undo_iolock:
if (lock_flags & XFS_IOLOCK_EXCL)
mrunlock_excl(&ip->i_iolock);
else if (lock_flags & XFS_IOLOCK_SHARED)
mrunlock_shared(&ip->i_iolock);
out:
return 0;
}
/*
@ -697,8 +688,9 @@ xfs_ilock_nowait(xfs_inode_t *ip,
*
*/
void
xfs_iunlock(xfs_inode_t *ip,
uint lock_flags)
xfs_iunlock(
xfs_inode_t *ip,
uint lock_flags)
{
/*
* You can't set both SHARED and EXCL for the same lock,
@ -713,31 +705,25 @@ xfs_iunlock(xfs_inode_t *ip,
XFS_LOCK_DEP_MASK)) == 0);
ASSERT(lock_flags != 0);
if (lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) {
ASSERT(!(lock_flags & XFS_IOLOCK_SHARED) ||
(ismrlocked(&ip->i_iolock, MR_ACCESS)));
ASSERT(!(lock_flags & XFS_IOLOCK_EXCL) ||
(ismrlocked(&ip->i_iolock, MR_UPDATE)));
mrunlock(&ip->i_iolock);
}
if (lock_flags & XFS_IOLOCK_EXCL)
mrunlock_excl(&ip->i_iolock);
else if (lock_flags & XFS_IOLOCK_SHARED)
mrunlock_shared(&ip->i_iolock);
if (lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) {
ASSERT(!(lock_flags & XFS_ILOCK_SHARED) ||
(ismrlocked(&ip->i_lock, MR_ACCESS)));
ASSERT(!(lock_flags & XFS_ILOCK_EXCL) ||
(ismrlocked(&ip->i_lock, MR_UPDATE)));
mrunlock(&ip->i_lock);
if (lock_flags & XFS_ILOCK_EXCL)
mrunlock_excl(&ip->i_lock);
else if (lock_flags & XFS_ILOCK_SHARED)
mrunlock_shared(&ip->i_lock);
if ((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) &&
!(lock_flags & XFS_IUNLOCK_NONOTIFY) && ip->i_itemp) {
/*
* Let the AIL know that this item has been unlocked in case
* it is in the AIL and anyone is waiting on it. Don't do
* this if the caller has asked us not to.
*/
if (!(lock_flags & XFS_IUNLOCK_NONOTIFY) &&
ip->i_itemp != NULL) {
xfs_trans_unlocked_item(ip->i_mount,
(xfs_log_item_t*)(ip->i_itemp));
}
xfs_trans_unlocked_item(ip->i_mount,
(xfs_log_item_t*)(ip->i_itemp));
}
xfs_ilock_trace(ip, 3, lock_flags, (inst_t *)__return_address);
}
@ -747,22 +733,48 @@ xfs_iunlock(xfs_inode_t *ip,
* if it is being demoted.
*/
void
xfs_ilock_demote(xfs_inode_t *ip,
uint lock_flags)
xfs_ilock_demote(
xfs_inode_t *ip,
uint lock_flags)
{
ASSERT(lock_flags & (XFS_IOLOCK_EXCL|XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_IOLOCK_EXCL|XFS_ILOCK_EXCL)) == 0);
if (lock_flags & XFS_ILOCK_EXCL) {
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
if (lock_flags & XFS_ILOCK_EXCL)
mrdemote(&ip->i_lock);
}
if (lock_flags & XFS_IOLOCK_EXCL) {
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
if (lock_flags & XFS_IOLOCK_EXCL)
mrdemote(&ip->i_iolock);
}
}
#ifdef DEBUG
/*
* Debug-only routine, without additional rw_semaphore APIs, we can
* now only answer requests regarding whether we hold the lock for write
* (reader state is outside our visibility, we only track writer state).
*
* Note: this means !xfs_isilocked would give false positives, so don't do that.
*/
int
xfs_isilocked(
xfs_inode_t *ip,
uint lock_flags)
{
if ((lock_flags & (XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)) ==
XFS_ILOCK_EXCL) {
if (!ip->i_lock.mr_writer)
return 0;
}
if ((lock_flags & (XFS_IOLOCK_EXCL|XFS_IOLOCK_SHARED)) ==
XFS_IOLOCK_EXCL) {
if (!ip->i_iolock.mr_writer)
return 0;
}
return 1;
}
#endif
/*
* The following three routines simply manage the i_flock
* semaphore embedded in the inode. This semaphore synchronizes

25
fs/xfs/xfs_inode.c
Просмотреть файл

@ -1291,7 +1291,7 @@ xfs_file_last_byte(
xfs_fileoff_t size_last_block;
int error;
ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE | MR_ACCESS));
ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL|XFS_IOLOCK_SHARED));
mp = ip->i_mount;
/*
@ -1402,7 +1402,7 @@ xfs_itruncate_start(
bhv_vnode_t *vp;
int error = 0;
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE) != 0);
ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
ASSERT((new_size == 0) || (new_size <= ip->i_size));
ASSERT((flags == XFS_ITRUNC_DEFINITE) ||
(flags == XFS_ITRUNC_MAYBE));
@ -1528,8 +1528,7 @@ xfs_itruncate_finish(
xfs_bmap_free_t free_list;
int error;
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE) != 0);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT((new_size == 0) || (new_size <= ip->i_size));
ASSERT(*tp != NULL);
ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
@ -1780,8 +1779,7 @@ xfs_igrow_start(
xfs_fsize_t new_size,
cred_t *credp)
{
ASSERT(ismrlocked(&(ip->i_lock), MR_UPDATE) != 0);
ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE) != 0);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT(new_size > ip->i_size);
/*
@ -1809,8 +1807,7 @@ xfs_igrow_finish(
xfs_fsize_t new_size,
int change_flag)
{
ASSERT(ismrlocked(&(ip->i_lock), MR_UPDATE) != 0);
ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE) != 0);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT(ip->i_transp == tp);
ASSERT(new_size > ip->i_size);
@ -2287,7 +2284,7 @@ xfs_ifree(
xfs_dinode_t *dip;
xfs_buf_t *ibp;
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(ip->i_transp == tp);
ASSERT(ip->i_d.di_nlink == 0);
ASSERT(ip->i_d.di_nextents == 0);
@ -2746,7 +2743,7 @@ void
xfs_ipin(
xfs_inode_t *ip)
{
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
atomic_inc(&ip->i_pincount);
}
@ -2779,7 +2776,7 @@ __xfs_iunpin_wait(
{
xfs_inode_log_item_t *iip = ip->i_itemp;
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE | MR_ACCESS));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
if (atomic_read(&ip->i_pincount) == 0)
return;
@ -2829,7 +2826,7 @@ xfs_iextents_copy(
xfs_fsblock_t start_block;
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
ASSERT(ifp->if_bytes > 0);
nrecs = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
@ -3132,7 +3129,7 @@ xfs_iflush(
XFS_STATS_INC(xs_iflush_count);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
ASSERT(issemalocked(&(ip->i_flock)));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
@ -3297,7 +3294,7 @@ xfs_iflush_int(
int first;
#endif
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
ASSERT(issemalocked(&(ip->i_flock)));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);

16
fs/xfs/xfs_inode.h
Просмотреть файл

@ -386,20 +386,9 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
#define XFS_ILOCK_EXCL (1<<2)
#define XFS_ILOCK_SHARED (1<<3)
#define XFS_IUNLOCK_NONOTIFY (1<<4)
/* #define XFS_IOLOCK_NESTED (1<<5) */
#define XFS_EXTENT_TOKEN_RD (1<<6)
#define XFS_SIZE_TOKEN_RD (1<<7)
#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
#define XFS_WILLLEND (1<<8) /* Always acquire tokens for lending */
#define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
#define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
#define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND)
/* TODO:XFS_SIZE_TOKEN_WANT (1<<9) */
#define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
| XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \
| XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD \
| XFS_WILLLEND)
| XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
/*
* Flags for lockdep annotations.
@ -483,6 +472,7 @@ void xfs_ilock(xfs_inode_t *, uint);
int xfs_ilock_nowait(xfs_inode_t *, uint);
void xfs_iunlock(xfs_inode_t *, uint);
void xfs_ilock_demote(xfs_inode_t *, uint);
int xfs_isilocked(xfs_inode_t *, uint);
void xfs_iflock(xfs_inode_t *);
int xfs_iflock_nowait(xfs_inode_t *);
uint xfs_ilock_map_shared(xfs_inode_t *);
@ -534,7 +524,7 @@ int xfs_iflush(xfs_inode_t *, uint);
void xfs_iflush_all(struct xfs_mount *);
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_lock_inodes(xfs_inode_t **, int, uint);
void xfs_synchronize_atime(xfs_inode_t *);
void xfs_mark_inode_dirty_sync(xfs_inode_t *);

12
fs/xfs/xfs_inode_item.c
Просмотреть файл

@ -547,7 +547,7 @@ STATIC void
xfs_inode_item_pin(
xfs_inode_log_item_t *iip)
{
ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE));
ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
xfs_ipin(iip->ili_inode);
}
@ -664,13 +664,13 @@ xfs_inode_item_unlock(
ASSERT(iip != NULL);
ASSERT(iip->ili_inode->i_itemp != NULL);
ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE));
ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
XFS_ILI_IOLOCKED_EXCL)) ||
ismrlocked(&(iip->ili_inode->i_iolock), MR_UPDATE));
xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL));
ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
XFS_ILI_IOLOCKED_SHARED)) ||
ismrlocked(&(iip->ili_inode->i_iolock), MR_ACCESS));
xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED));
/*
* Clear the transaction pointer in the inode.
*/
@ -769,7 +769,7 @@ xfs_inode_item_pushbuf(
ip = iip->ili_inode;
ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
/*
* The ili_pushbuf_flag keeps others from
@ -857,7 +857,7 @@ xfs_inode_item_push(
ip = iip->ili_inode;
ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
ASSERT(issemalocked(&(ip->i_flock)));
/*
* Since we were able to lock the inode's flush lock and

19
fs/xfs/xfs_iomap.c
Просмотреть файл

@ -196,14 +196,14 @@ xfs_iomap(
break;
case BMAPI_WRITE:
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, ip, offset, count);
lockmode = XFS_ILOCK_EXCL|XFS_EXTSIZE_WR;
lockmode = XFS_ILOCK_EXCL;
if (flags & BMAPI_IGNSTATE)
bmapi_flags |= XFS_BMAPI_IGSTATE|XFS_BMAPI_ENTIRE;
xfs_ilock(ip, lockmode);
break;
case BMAPI_ALLOCATE:
xfs_iomap_enter_trace(XFS_IOMAP_ALLOC_ENTER, ip, offset, count);
lockmode = XFS_ILOCK_SHARED|XFS_EXTSIZE_RD;
lockmode = XFS_ILOCK_SHARED;
bmapi_flags = XFS_BMAPI_ENTIRE;
/* Attempt non-blocking lock */
@ -523,8 +523,7 @@ xfs_iomap_write_direct(
goto error_out;
}
if (unlikely(!imap.br_startblock &&
!(XFS_IS_REALTIME_INODE(ip)))) {
if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) {
error = xfs_cmn_err_fsblock_zero(ip, &imap);
goto error_out;
}
@ -624,7 +623,7 @@ xfs_iomap_write_delay(
int prealloc, fsynced = 0;
int error;
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
/*
* Make sure that the dquots are there. This doesn't hold
@ -686,8 +685,7 @@ retry:
goto retry;
}
if (unlikely(!imap[0].br_startblock &&
!(XFS_IS_REALTIME_INODE(ip))))
if (!(imap[0].br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap[0]);
*ret_imap = imap[0];
@ -838,9 +836,9 @@ xfs_iomap_write_allocate(
* See if we were able to allocate an extent that
* covers at least part of the callers request
*/
if (unlikely(!imap.br_startblock &&
XFS_IS_REALTIME_INODE(ip)))
if (!(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))) {
@ -934,8 +932,7 @@ xfs_iomap_write_unwritten(
if (error)
return XFS_ERROR(error);
if (unlikely(!imap.br_startblock &&
!(XFS_IS_REALTIME_INODE(ip))))
if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap);
if ((numblks_fsb = imap.br_blockcount) == 0) {

6
fs/xfs/xfs_itable.c
Просмотреть файл

@ -71,11 +71,6 @@ xfs_bulkstat_one_iget(
ASSERT(ip != NULL);
ASSERT(ip->i_blkno != (xfs_daddr_t)0);
if (ip->i_d.di_mode == 0) {
*stat = BULKSTAT_RV_NOTHING;
error = XFS_ERROR(ENOENT);
goto out_iput;
}
vp = XFS_ITOV(ip);
dic = &ip->i_d;
@ -124,7 +119,6 @@ xfs_bulkstat_one_iget(
break;
}
out_iput:
xfs_iput(ip, XFS_ILOCK_SHARED);
return error;
}

83
fs/xfs/xfs_mount.c
Просмотреть файл

@ -54,8 +54,9 @@ STATIC void xfs_unmountfs_wait(xfs_mount_t *);
#ifdef HAVE_PERCPU_SB
STATIC void xfs_icsb_destroy_counters(xfs_mount_t *);
STATIC void xfs_icsb_balance_counter(xfs_mount_t *, xfs_sb_field_t,
int, int);
STATIC void xfs_icsb_sync_counters(xfs_mount_t *);
int);
STATIC void xfs_icsb_balance_counter_locked(xfs_mount_t *, xfs_sb_field_t,
int);
STATIC int xfs_icsb_modify_counters(xfs_mount_t *, xfs_sb_field_t,
int64_t, int);
STATIC void xfs_icsb_disable_counter(xfs_mount_t *, xfs_sb_field_t);
@ -63,8 +64,8 @@ STATIC void xfs_icsb_disable_counter(xfs_mount_t *, xfs_sb_field_t);
#else
#define xfs_icsb_destroy_counters(mp) do { } while (0)
#define xfs_icsb_balance_counter(mp, a, b, c) do { } while (0)
#define xfs_icsb_sync_counters(mp) do { } while (0)
#define xfs_icsb_balance_counter(mp, a, b) do { } while (0)
#define xfs_icsb_balance_counter_locked(mp, a, b) do { } while (0)
#define xfs_icsb_modify_counters(mp, a, b, c) do { } while (0)
#endif
@ -1400,7 +1401,7 @@ xfs_log_sbcount(
if (!xfs_fs_writable(mp))
return 0;
xfs_icsb_sync_counters(mp);
xfs_icsb_sync_counters(mp, 0);
/*
* we don't need to do this if we are updating the superblock
@ -2026,9 +2027,9 @@ xfs_icsb_cpu_notify(
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
xfs_icsb_lock(mp);
xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0);
xfs_icsb_unlock(mp);
break;
case CPU_DEAD:
@ -2048,12 +2049,9 @@ xfs_icsb_cpu_notify(
memset(cntp, 0, sizeof(xfs_icsb_cnts_t));
xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT,
XFS_ICSB_SB_LOCKED, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_IFREE,
XFS_ICSB_SB_LOCKED, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS,
XFS_ICSB_SB_LOCKED, 0);
xfs_icsb_balance_counter_locked(mp, XFS_SBS_ICOUNT, 0);
xfs_icsb_balance_counter_locked(mp, XFS_SBS_IFREE, 0);
xfs_icsb_balance_counter_locked(mp, XFS_SBS_FDBLOCKS, 0);
spin_unlock(&mp->m_sb_lock);
xfs_icsb_unlock(mp);
break;
@ -2105,9 +2103,9 @@ xfs_icsb_reinit_counters(
* initial balance kicks us off correctly
*/
mp->m_icsb_counters = -1;
xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0);
xfs_icsb_unlock(mp);
}
@ -2223,7 +2221,7 @@ xfs_icsb_disable_counter(
if (!test_and_set_bit(field, &mp->m_icsb_counters)) {
/* drain back to superblock */
xfs_icsb_count(mp, &cnt, XFS_ICSB_SB_LOCKED|XFS_ICSB_LAZY_COUNT);
xfs_icsb_count(mp, &cnt, XFS_ICSB_LAZY_COUNT);
switch(field) {
case XFS_SBS_ICOUNT:
mp->m_sb.sb_icount = cnt.icsb_icount;
@ -2278,38 +2276,33 @@ xfs_icsb_enable_counter(
}
void
xfs_icsb_sync_counters_flags(
xfs_icsb_sync_counters_locked(
xfs_mount_t *mp,
int flags)
{
xfs_icsb_cnts_t cnt;
/* Pass 1: lock all counters */
if ((flags & XFS_ICSB_SB_LOCKED) == 0)
spin_lock(&mp->m_sb_lock);
xfs_icsb_count(mp, &cnt, flags);
/* Step 3: update mp->m_sb fields */
if (!xfs_icsb_counter_disabled(mp, XFS_SBS_ICOUNT))
mp->m_sb.sb_icount = cnt.icsb_icount;
if (!xfs_icsb_counter_disabled(mp, XFS_SBS_IFREE))
mp->m_sb.sb_ifree = cnt.icsb_ifree;
if (!xfs_icsb_counter_disabled(mp, XFS_SBS_FDBLOCKS))
mp->m_sb.sb_fdblocks = cnt.icsb_fdblocks;
if ((flags & XFS_ICSB_SB_LOCKED) == 0)
spin_unlock(&mp->m_sb_lock);
}
/*
* Accurate update of per-cpu counters to incore superblock
*/
STATIC void
void
xfs_icsb_sync_counters(
xfs_mount_t *mp)
xfs_mount_t *mp,
int flags)
{
xfs_icsb_sync_counters_flags(mp, 0);
spin_lock(&mp->m_sb_lock);
xfs_icsb_sync_counters_locked(mp, flags);
spin_unlock(&mp->m_sb_lock);
}
/*
@ -2332,19 +2325,15 @@ xfs_icsb_sync_counters(
#define XFS_ICSB_FDBLK_CNTR_REENABLE(mp) \
(uint64_t)(512 + XFS_ALLOC_SET_ASIDE(mp))
STATIC void
xfs_icsb_balance_counter(
xfs_icsb_balance_counter_locked(
xfs_mount_t *mp,
xfs_sb_field_t field,
int flags,
int min_per_cpu)
{
uint64_t count, resid;
int weight = num_online_cpus();
uint64_t min = (uint64_t)min_per_cpu;
if (!(flags & XFS_ICSB_SB_LOCKED))
spin_lock(&mp->m_sb_lock);
/* disable counter and sync counter */
xfs_icsb_disable_counter(mp, field);
@ -2354,19 +2343,19 @@ xfs_icsb_balance_counter(
count = mp->m_sb.sb_icount;
resid = do_div(count, weight);
if (count < max(min, XFS_ICSB_INO_CNTR_REENABLE))
goto out;
return;
break;
case XFS_SBS_IFREE:
count = mp->m_sb.sb_ifree;
resid = do_div(count, weight);
if (count < max(min, XFS_ICSB_INO_CNTR_REENABLE))
goto out;
return;
break;
case XFS_SBS_FDBLOCKS:
count = mp->m_sb.sb_fdblocks;
resid = do_div(count, weight);
if (count < max(min, XFS_ICSB_FDBLK_CNTR_REENABLE(mp)))
goto out;
return;
break;
default:
BUG();
@ -2375,9 +2364,17 @@ xfs_icsb_balance_counter(
}
xfs_icsb_enable_counter(mp, field, count, resid);
out:
if (!(flags & XFS_ICSB_SB_LOCKED))
spin_unlock(&mp->m_sb_lock);
}
STATIC void
xfs_icsb_balance_counter(
xfs_mount_t *mp,
xfs_sb_field_t fields,
int min_per_cpu)
{
spin_lock(&mp->m_sb_lock);
xfs_icsb_balance_counter_locked(mp, fields, min_per_cpu);
spin_unlock(&mp->m_sb_lock);
}
STATIC int
@ -2484,7 +2481,7 @@ slow_path:
* we are done.
*/
if (ret != ENOSPC)
xfs_icsb_balance_counter(mp, field, 0, 0);
xfs_icsb_balance_counter(mp, field, 0);
xfs_icsb_unlock(mp);
return ret;
@ -2508,7 +2505,7 @@ balance_counter:
* will either succeed through the fast path or slow path without
* another balance operation being required.
*/
xfs_icsb_balance_counter(mp, field, 0, delta);
xfs_icsb_balance_counter(mp, field, delta);
xfs_icsb_unlock(mp);
goto again;
}

7
fs/xfs/xfs_mount.h
Просмотреть файл

@ -206,17 +206,18 @@ typedef struct xfs_icsb_cnts {
#define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */
#define XFS_ICSB_SB_LOCKED (1 << 0) /* sb already locked */
#define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */
extern int xfs_icsb_init_counters(struct xfs_mount *);
extern void xfs_icsb_reinit_counters(struct xfs_mount *);
extern void xfs_icsb_sync_counters_flags(struct xfs_mount *, int);
extern void xfs_icsb_sync_counters(struct xfs_mount *, int);
extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int);
#else
#define xfs_icsb_init_counters(mp) (0)
#define xfs_icsb_reinit_counters(mp) do { } while (0)
#define xfs_icsb_sync_counters_flags(mp, flags) do { } while (0)
#define xfs_icsb_sync_counters(mp, flags) do { } while (0)
#define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0)
#endif
typedef struct xfs_ail {

264
fs/xfs/xfs_rename.c
Просмотреть файл

@ -55,85 +55,32 @@ xfs_rename_unlock4(
xfs_iunlock(i_tab[0], lock_mode);
for (i = 1; i < 4; i++) {
if (i_tab[i] == NULL) {
if (i_tab[i] == NULL)
break;
}
/*
* Watch out for duplicate entries in the table.
*/
if (i_tab[i] != i_tab[i-1]) {
if (i_tab[i] != i_tab[i-1])
xfs_iunlock(i_tab[i], lock_mode);
}
}
}
#ifdef DEBUG
int xfs_rename_skip, xfs_rename_nskip;
#endif
/*
* The following routine will acquire the locks required for a rename
* operation. The code understands the semantics of renames and will
* validate that name1 exists under dp1 & that name2 may or may not
* exist under dp2.
*
* We are renaming dp1/name1 to dp2/name2.
*
* Return ENOENT if dp1 does not exist, other lookup errors, or 0 for success.
* Enter all inodes for a rename transaction into a sorted array.
*/
STATIC int
xfs_lock_for_rename(
STATIC void
xfs_sort_for_rename(
xfs_inode_t *dp1, /* in: old (source) directory inode */
xfs_inode_t *dp2, /* in: new (target) directory inode */
xfs_inode_t *ip1, /* in: inode of old entry */
struct xfs_name *name2, /* in: new entry name */
xfs_inode_t **ipp2, /* out: inode of new entry, if it
xfs_inode_t *ip2, /* in: inode of new entry, if it
already exists, NULL otherwise. */
xfs_inode_t **i_tab,/* out: array of inode returned, sorted */
int *num_inodes) /* out: number of inodes in array */
{
xfs_inode_t *ip2 = NULL;
xfs_inode_t *temp;
xfs_ino_t inum1, inum2;
int error;
int i, j;
uint lock_mode;
int diff_dirs = (dp1 != dp2);
/*
* First, find out the current inums of the entries so that we
* can determine the initial locking order. We'll have to
* sanity check stuff after all the locks have been acquired
* to see if we still have the right inodes, directories, etc.
*/
lock_mode = xfs_ilock_map_shared(dp1);
IHOLD(ip1);
xfs_itrace_ref(ip1);
inum1 = ip1->i_ino;
/*
* Unlock dp1 and lock dp2 if they are different.
*/
if (diff_dirs) {
xfs_iunlock_map_shared(dp1, lock_mode);
lock_mode = xfs_ilock_map_shared(dp2);
}
error = xfs_dir_lookup_int(dp2, lock_mode, name2, &inum2, &ip2);
if (error == ENOENT) { /* target does not need to exist. */
inum2 = 0;
} else if (error) {
/*
* If dp2 and dp1 are the same, the next line unlocks dp1.
* Got it?
*/
xfs_iunlock_map_shared(dp2, lock_mode);
IRELE (ip1);
return error;
} else {
xfs_itrace_ref(ip2);
}
/*
* i_tab contains a list of pointers to inodes. We initialize
@ -145,21 +92,20 @@ xfs_lock_for_rename(
i_tab[0] = dp1;
i_tab[1] = dp2;
i_tab[2] = ip1;
if (inum2 == 0) {
*num_inodes = 3;
i_tab[3] = NULL;
} else {
if (ip2) {
*num_inodes = 4;
i_tab[3] = ip2;
} else {
*num_inodes = 3;
i_tab[3] = NULL;
}
*ipp2 = i_tab[3];
/*
* Sort the elements via bubble sort. (Remember, there are at
* most 4 elements to sort, so this is adequate.)
*/
for (i=0; i < *num_inodes; i++) {
for (j=1; j < *num_inodes; j++) {
for (i = 0; i < *num_inodes; i++) {
for (j = 1; j < *num_inodes; j++) {
if (i_tab[j]->i_ino < i_tab[j-1]->i_ino) {
temp = i_tab[j];
i_tab[j] = i_tab[j-1];
@ -167,30 +113,6 @@ xfs_lock_for_rename(
}
}
}
/*
* We have dp2 locked. If it isn't first, unlock it.
* If it is first, tell xfs_lock_inodes so it can skip it
* when locking. if dp1 == dp2, xfs_lock_inodes will skip both
* since they are equal. xfs_lock_inodes needs all these inodes
* so that it can unlock and retry if there might be a dead-lock
* potential with the log.
*/
if (i_tab[0] == dp2 && lock_mode == XFS_ILOCK_SHARED) {
#ifdef DEBUG
xfs_rename_skip++;
#endif
xfs_lock_inodes(i_tab, *num_inodes, 1, XFS_ILOCK_SHARED);
} else {
#ifdef DEBUG
xfs_rename_nskip++;
#endif
xfs_iunlock_map_shared(dp2, lock_mode);
xfs_lock_inodes(i_tab, *num_inodes, 0, XFS_ILOCK_SHARED);
}
return 0;
}
/*
@ -202,10 +124,10 @@ xfs_rename(
struct xfs_name *src_name,
xfs_inode_t *src_ip,
xfs_inode_t *target_dp,
struct xfs_name *target_name)
struct xfs_name *target_name,
xfs_inode_t *target_ip)
{
xfs_trans_t *tp;
xfs_inode_t *target_ip;
xfs_trans_t *tp = NULL;
xfs_mount_t *mp = src_dp->i_mount;
int new_parent; /* moving to a new dir */
int src_is_directory; /* src_name is a directory */
@ -215,9 +137,7 @@ xfs_rename(
int cancel_flags;
int committed;
xfs_inode_t *inodes[4];
int target_ip_dropped = 0; /* dropped target_ip link? */
int spaceres;
int target_link_zero = 0;
int num_inodes;
xfs_itrace_entry(src_dp);
@ -230,64 +150,27 @@ xfs_rename(
target_dp, DM_RIGHT_NULL,
src_name->name, target_name->name,
0, 0, 0);
if (error) {
if (error)
return error;
}
}
/* Return through std_return after this point. */
/*
* Lock all the participating inodes. Depending upon whether
* the target_name exists in the target directory, and
* whether the target directory is the same as the source
* directory, we can lock from 2 to 4 inodes.
* xfs_lock_for_rename() will return ENOENT if src_name
* does not exist in the source directory.
*/
tp = NULL;
error = xfs_lock_for_rename(src_dp, target_dp, src_ip, target_name,
&target_ip, inodes, &num_inodes);
if (error) {
/*
* We have nothing locked, no inode references, and
* no transaction, so just get out.
*/
goto std_return;
}
ASSERT(src_ip != NULL);
if ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
/*
* Check for link count overflow on target_dp
*/
if (target_ip == NULL && (src_dp != target_dp) &&
target_dp->i_d.di_nlink >= XFS_MAXLINK) {
error = XFS_ERROR(EMLINK);
xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
goto rele_return;
}
}
/*
* If we are using project inheritance, we only allow renames
* into our tree when the project IDs are the same; else the
* tree quota mechanism would be circumvented.
*/
if (unlikely((target_dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
(target_dp->i_d.di_projid != src_ip->i_d.di_projid))) {
error = XFS_ERROR(EXDEV);
xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
goto rele_return;
}
new_parent = (src_dp != target_dp);
src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
/*
* Drop the locks on our inodes so that we can start the transaction.
*/
xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
if (src_is_directory) {
/*
* Check for link count overflow on target_dp
*/
if (target_ip == NULL && new_parent &&
target_dp->i_d.di_nlink >= XFS_MAXLINK) {
error = XFS_ERROR(EMLINK);
goto std_return;
}
}
xfs_sort_for_rename(src_dp, target_dp, src_ip, target_ip,
inodes, &num_inodes);
XFS_BMAP_INIT(&free_list, &first_block);
tp = xfs_trans_alloc(mp, XFS_TRANS_RENAME);
@ -302,7 +185,7 @@ xfs_rename(
}
if (error) {
xfs_trans_cancel(tp, 0);
goto rele_return;
goto std_return;
}
/*
@ -310,13 +193,29 @@ xfs_rename(
*/
if ((error = XFS_QM_DQVOPRENAME(mp, inodes))) {
xfs_trans_cancel(tp, cancel_flags);
goto rele_return;
goto std_return;
}
/*
* Reacquire the inode locks we dropped above.
* Lock all the participating inodes. Depending upon whether
* the target_name exists in the target directory, and
* whether the target directory is the same as the source
* directory, we can lock from 2 to 4 inodes.
*/
xfs_lock_inodes(inodes, num_inodes, 0, XFS_ILOCK_EXCL);
xfs_lock_inodes(inodes, num_inodes, XFS_ILOCK_EXCL);
/*
* If we are using project inheritance, we only allow renames
* into our tree when the project IDs are the same; else the
* tree quota mechanism would be circumvented.
*/
if (unlikely((target_dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
(target_dp->i_d.di_projid != src_ip->i_d.di_projid))) {
error = XFS_ERROR(EXDEV);
xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
xfs_trans_cancel(tp, cancel_flags);
goto std_return;
}
/*
* Join all the inodes to the transaction. From this point on,
@ -328,17 +227,17 @@ xfs_rename(
*/
IHOLD(src_dp);
xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
if (new_parent) {
IHOLD(target_dp);
xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
}
if ((src_ip != src_dp) && (src_ip != target_dp)) {
xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
}
if ((target_ip != NULL) &&
(target_ip != src_ip) &&
(target_ip != src_dp) &&
(target_ip != target_dp)) {
IHOLD(src_ip);
xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
if (target_ip) {
IHOLD(target_ip);
xfs_trans_ijoin(tp, target_ip, XFS_ILOCK_EXCL);
}
@ -412,7 +311,6 @@ xfs_rename(
error = xfs_droplink(tp, target_ip);
if (error)
goto abort_return;
target_ip_dropped = 1;
if (src_is_directory) {
/*
@ -422,10 +320,6 @@ xfs_rename(
if (error)
goto abort_return;
}
/* Do this test while we still hold the locks */
target_link_zero = (target_ip)->i_d.di_nlink==0;
} /* target_ip != NULL */
/*
@ -491,15 +385,6 @@ xfs_rename(
xfs_trans_log_inode(tp, target_dp, XFS_ILOG_CORE);
}
/*
* If there was a target inode, take an extra reference on
* it here so that it doesn't go to xfs_inactive() from
* within the commit.
*/
if (target_ip != NULL) {
IHOLD(target_ip);
}
/*
* If this is a synchronous mount, make sure that the
* rename transaction goes to disk before returning to
@ -509,30 +394,11 @@ xfs_rename(
xfs_trans_set_sync(tp);
}
/*
* Take refs. for vop_link_removed calls below. No need to worry
* about directory refs. because the caller holds them.
*
* Do holds before the xfs_bmap_finish since it might rele them down
* to zero.
*/
if (target_ip_dropped)
IHOLD(target_ip);
IHOLD(src_ip);
error = xfs_bmap_finish(&tp, &free_list, &committed);
if (error) {
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES |
XFS_TRANS_ABORT));
if (target_ip != NULL) {
IRELE(target_ip);
}
if (target_ip_dropped) {
IRELE(target_ip);
}
IRELE(src_ip);
goto std_return;
}
@ -541,15 +407,6 @@ xfs_rename(
* the vnode references.
*/
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
if (target_ip != NULL)
IRELE(target_ip);
/*
* Let interposed file systems know about removed links.
*/
if (target_ip_dropped)
IRELE(target_ip);
IRELE(src_ip);
/* Fall through to std_return with error = 0 or errno from
* xfs_trans_commit */
@ -571,11 +428,4 @@ std_return:
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp, cancel_flags);
goto std_return;
rele_return:
IRELE(src_ip);
if (target_ip != NULL) {
IRELE(target_ip);
}
goto std_return;
}

12
fs/xfs/xfs_trans_inode.c
Просмотреть файл

@ -111,13 +111,13 @@ xfs_trans_iget(
*/
ASSERT(ip->i_itemp != NULL);
ASSERT(lock_flags & XFS_ILOCK_EXCL);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) ||
ismrlocked(&ip->i_iolock, MR_UPDATE));
xfs_isilocked(ip, XFS_IOLOCK_EXCL));
ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) ||
(ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_EXCL));
ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) ||
ismrlocked(&ip->i_iolock, (MR_UPDATE | MR_ACCESS)));
xfs_isilocked(ip, XFS_IOLOCK_EXCL|XFS_IOLOCK_SHARED));
ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) ||
(ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_ANY));
@ -185,7 +185,7 @@ xfs_trans_ijoin(
xfs_inode_log_item_t *iip;
ASSERT(ip->i_transp == NULL);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(lock_flags & XFS_ILOCK_EXCL);
if (ip->i_itemp == NULL)
xfs_inode_item_init(ip, ip->i_mount);
@ -232,7 +232,7 @@ xfs_trans_ihold(
{
ASSERT(ip->i_transp == tp);
ASSERT(ip->i_itemp != NULL);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ip->i_itemp->ili_flags |= XFS_ILI_HOLD;
}
@ -257,7 +257,7 @@ xfs_trans_log_inode(
ASSERT(ip->i_transp == tp);
ASSERT(ip->i_itemp != NULL);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(ip->i_itemp));
ASSERT(lidp != NULL);

45
fs/xfs/xfs_utils.c
Просмотреть файл

@ -41,49 +41,6 @@
#include "xfs_utils.h"
int
xfs_dir_lookup_int(
xfs_inode_t *dp,
uint lock_mode,
struct xfs_name *name,
xfs_ino_t *inum,
xfs_inode_t **ipp)
{
int error;
xfs_itrace_entry(dp);
error = xfs_dir_lookup(NULL, dp, name, inum);
if (!error) {
/*
* Unlock the directory. We do this because we can't
* hold the directory lock while doing the vn_get()
* in xfs_iget(). Doing so could cause us to hold
* a lock while waiting for the inode to finish
* being inactive while it's waiting for a log
* reservation in the inactive routine.
*/
xfs_iunlock(dp, lock_mode);
error = xfs_iget(dp->i_mount, NULL, *inum, 0, 0, ipp, 0);
xfs_ilock(dp, lock_mode);
if (error) {
*ipp = NULL;
} else if ((*ipp)->i_d.di_mode == 0) {
/*
* The inode has been freed. Something is
* wrong so just get out of here.
*/
xfs_iunlock(dp, lock_mode);
xfs_iput_new(*ipp, 0);
*ipp = NULL;
xfs_ilock(dp, lock_mode);
error = XFS_ERROR(ENOENT);
}
}
return error;
}
/*
* Allocates a new inode from disk and return a pointer to the
* incore copy. This routine will internally commit the current
@ -310,7 +267,7 @@ xfs_bump_ino_vers2(
{
xfs_mount_t *mp;
ASSERT(ismrlocked (&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1);
ip->i_d.di_version = XFS_DINODE_VERSION_2;

2
fs/xfs/xfs_utils.h
Просмотреть файл

@ -21,8 +21,6 @@
#define IRELE(ip) VN_RELE(XFS_ITOV(ip))
#define IHOLD(ip) VN_HOLD(XFS_ITOV(ip))
extern int xfs_dir_lookup_int(xfs_inode_t *, uint, struct xfs_name *,
xfs_ino_t *, xfs_inode_t **);
extern int xfs_truncate_file(xfs_mount_t *, xfs_inode_t *);
extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
xfs_dev_t, cred_t *, prid_t, int,

1
fs/xfs/xfs_vfsops.c
Просмотреть файл

@ -186,6 +186,7 @@ xfs_cleanup(void)
kmem_zone_destroy(xfs_efi_zone);
kmem_zone_destroy(xfs_ifork_zone);
kmem_zone_destroy(xfs_ili_zone);
kmem_zone_destroy(xfs_log_ticket_zone);
}
/*

274
fs/xfs/xfs_vnodeops.c
Просмотреть файл

@ -75,132 +75,6 @@ xfs_open(
return 0;
}
/*
* xfs_getattr
*/
int
xfs_getattr(
xfs_inode_t *ip,
bhv_vattr_t *vap,
int flags)
{
bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
if (!(flags & ATTR_LAZY))
xfs_ilock(ip, XFS_ILOCK_SHARED);
vap->va_size = XFS_ISIZE(ip);
if (vap->va_mask == XFS_AT_SIZE)
goto all_done;
vap->va_nblocks =
XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
vap->va_nodeid = ip->i_ino;
#if XFS_BIG_INUMS
vap->va_nodeid += mp->m_inoadd;
#endif
vap->va_nlink = ip->i_d.di_nlink;
/*
* Quick exit for non-stat callers
*/
if ((vap->va_mask &
~(XFS_AT_SIZE|XFS_AT_FSID|XFS_AT_NODEID|
XFS_AT_NLINK|XFS_AT_BLKSIZE)) == 0)
goto all_done;
/*
* Copy from in-core inode.
*/
vap->va_mode = ip->i_d.di_mode;
vap->va_uid = ip->i_d.di_uid;
vap->va_gid = ip->i_d.di_gid;
vap->va_projid = ip->i_d.di_projid;
/*
* Check vnode type block/char vs. everything else.
*/
switch (ip->i_d.di_mode & S_IFMT) {
case S_IFBLK:
case S_IFCHR:
vap->va_rdev = ip->i_df.if_u2.if_rdev;
vap->va_blocksize = BLKDEV_IOSIZE;
break;
default:
vap->va_rdev = 0;
if (!(XFS_IS_REALTIME_INODE(ip))) {
vap->va_blocksize = xfs_preferred_iosize(mp);
} else {
/*
* If the file blocks are being allocated from a
* realtime partition, then return the inode's
* realtime extent size or the realtime volume's
* extent size.
*/
vap->va_blocksize =
xfs_get_extsz_hint(ip) << mp->m_sb.sb_blocklog;
}
break;
}
vn_atime_to_timespec(vp, &vap->va_atime);
vap->va_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
vap->va_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
vap->va_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
vap->va_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
/*
* Exit for stat callers. See if any of the rest of the fields
* to be filled in are needed.
*/
if ((vap->va_mask &
(XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
goto all_done;
/*
* Convert di_flags to xflags.
*/
vap->va_xflags = xfs_ip2xflags(ip);
/*
* Exit for inode revalidate. See if any of the rest of
* the fields to be filled in are needed.
*/
if ((vap->va_mask &
(XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
goto all_done;
vap->va_extsize = ip->i_d.di_extsize << mp->m_sb.sb_blocklog;
vap->va_nextents =
(ip->i_df.if_flags & XFS_IFEXTENTS) ?
ip->i_df.if_bytes / sizeof(xfs_bmbt_rec_t) :
ip->i_d.di_nextents;
if (ip->i_afp)
vap->va_anextents =
(ip->i_afp->if_flags & XFS_IFEXTENTS) ?
ip->i_afp->if_bytes / sizeof(xfs_bmbt_rec_t) :
ip->i_d.di_anextents;
else
vap->va_anextents = 0;
vap->va_gen = ip->i_d.di_gen;
all_done:
if (!(flags & ATTR_LAZY))
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return 0;
}
/*
* xfs_setattr
*/
@ -211,7 +85,6 @@ xfs_setattr(
int flags,
cred_t *credp)
{
bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
xfs_trans_t *tp;
int mask;
@ -222,7 +95,6 @@ xfs_setattr(
gid_t gid=0, igid=0;
int timeflags = 0;
xfs_prid_t projid=0, iprojid=0;
int mandlock_before, mandlock_after;
struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2;
int file_owner;
int need_iolock = 1;
@ -383,7 +255,7 @@ xfs_setattr(
m |= S_ISGID;
#if 0
/* Linux allows this, Irix doesn't. */
if ((vap->va_mode & S_ISVTX) && !VN_ISDIR(vp))
if ((vap->va_mode & S_ISVTX) && !S_ISDIR(ip->i_d.di_mode))
m |= S_ISVTX;
#endif
if (m && !capable(CAP_FSETID))
@ -461,10 +333,10 @@ xfs_setattr(
goto error_return;
}
if (VN_ISDIR(vp)) {
if (S_ISDIR(ip->i_d.di_mode)) {
code = XFS_ERROR(EISDIR);
goto error_return;
} else if (!VN_ISREG(vp)) {
} else if (!S_ISREG(ip->i_d.di_mode)) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
@ -626,9 +498,6 @@ xfs_setattr(
xfs_trans_ihold(tp, ip);
}
/* determine whether mandatory locking mode changes */
mandlock_before = MANDLOCK(vp, ip->i_d.di_mode);
/*
* Truncate file. Must have write permission and not be a directory.
*/
@ -858,13 +727,6 @@ xfs_setattr(
code = xfs_trans_commit(tp, commit_flags);
}
/*
* If the (regular) file's mandatory locking mode changed, then
* notify the vnode. We do this under the inode lock to prevent
* racing calls to vop_vnode_change.
*/
mandlock_after = MANDLOCK(vp, ip->i_d.di_mode);
xfs_iunlock(ip, lock_flags);
/*
@ -1443,7 +1305,7 @@ xfs_inactive_attrs(
int error;
xfs_mount_t *mp;
ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
tp = *tpp;
mp = ip->i_mount;
ASSERT(ip->i_d.di_forkoff != 0);
@ -1491,7 +1353,7 @@ xfs_release(
xfs_mount_t *mp = ip->i_mount;
int error;
if (!VN_ISREG(vp) || (ip->i_d.di_mode == 0))
if (!S_ISREG(ip->i_d.di_mode) || (ip->i_d.di_mode == 0))
return 0;
/* If this is a read-only mount, don't do this (would generate I/O) */
@ -1774,8 +1636,7 @@ xfs_lookup(
struct xfs_name *name,
xfs_inode_t **ipp)
{
xfs_inode_t *ip;
xfs_ino_t e_inum;
xfs_ino_t inum;
int error;
uint lock_mode;
@ -1785,12 +1646,21 @@ xfs_lookup(
return XFS_ERROR(EIO);
lock_mode = xfs_ilock_map_shared(dp);
error = xfs_dir_lookup_int(dp, lock_mode, name, &e_inum, &ip);
if (!error) {
*ipp = ip;
xfs_itrace_ref(ip);
}
error = xfs_dir_lookup(NULL, dp, name, &inum);
xfs_iunlock_map_shared(dp, lock_mode);
if (error)
goto out;
error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp, 0);
if (error)
goto out;
xfs_itrace_ref(*ipp);
return 0;
out:
*ipp = NULL;
return error;
}
@ -1906,7 +1776,7 @@ xfs_create(
* It is locked (and joined to the transaction).
*/
ASSERT(ismrlocked (&ip->i_lock, MR_UPDATE));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
/*
* Now we join the directory inode to the transaction. We do not do it
@ -2112,7 +1982,7 @@ again:
ips[0] = ip;
ips[1] = dp;
xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
}
/* else e_inum == dp->i_ino */
/* This can happen if we're asked to lock /x/..
@ -2160,7 +2030,6 @@ void
xfs_lock_inodes(
xfs_inode_t **ips,
int inodes,
int first_locked,
uint lock_mode)
{
int attempts = 0, i, j, try_lock;
@ -2168,13 +2037,8 @@ xfs_lock_inodes(
ASSERT(ips && (inodes >= 2)); /* we need at least two */
if (first_locked) {
try_lock = 1;
i = 1;
} else {
try_lock = 0;
i = 0;
}
try_lock = 0;
i = 0;
again:
for (; i < inodes; i++) {
@ -2298,29 +2162,14 @@ xfs_remove(
return error;
}
/*
* We need to get a reference to ip before we get our log
* reservation. The reason for this is that we cannot call
* xfs_iget for an inode for which we do not have a reference
* once we've acquired a log reservation. This is because the
* inode we are trying to get might be in xfs_inactive going
* for a log reservation. Since we'll have to wait for the
* inactive code to complete before returning from xfs_iget,
* we need to make sure that we don't have log space reserved
* when we call xfs_iget. Instead we get an unlocked reference
* to the inode before getting our log reservation.
*/
IHOLD(ip);
xfs_itrace_entry(ip);
xfs_itrace_ref(ip);
error = XFS_QM_DQATTACH(mp, dp, 0);
if (!error && dp != ip)
if (!error)
error = XFS_QM_DQATTACH(mp, ip, 0);
if (error) {
REMOVE_DEBUG_TRACE(__LINE__);
IRELE(ip);
goto std_return;
}
@ -2347,7 +2196,6 @@ xfs_remove(
ASSERT(error != ENOSPC);
REMOVE_DEBUG_TRACE(__LINE__);
xfs_trans_cancel(tp, 0);
IRELE(ip);
return error;
}
@ -2355,7 +2203,6 @@ xfs_remove(
if (error) {
REMOVE_DEBUG_TRACE(__LINE__);
xfs_trans_cancel(tp, cancel_flags);
IRELE(ip);
goto std_return;
}
@ -2363,23 +2210,18 @@ xfs_remove(
* At this point, we've gotten both the directory and the entry
* inodes locked.
*/
IHOLD(ip);
xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
if (dp != ip) {
/*
* Increment vnode ref count only in this case since
* there's an extra vnode reference in the case where
* dp == ip.
*/
IHOLD(dp);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
}
IHOLD(dp);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
/*
* Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
*/
XFS_BMAP_INIT(&free_list, &first_block);
error = xfs_dir_removename(tp, dp, name, ip->i_ino,
&first_block, &free_list, 0);
&first_block, &free_list, resblks);
if (error) {
ASSERT(error != ENOENT);
REMOVE_DEBUG_TRACE(__LINE__);
@ -2401,12 +2243,6 @@ xfs_remove(
*/
link_zero = (ip)->i_d.di_nlink==0;
/*
* Take an extra ref on the inode so that it doesn't
* go to xfs_inactive() from within the commit.
*/
IHOLD(ip);
/*
* If this is a synchronous mount, make sure that the
* remove transaction goes to disk before returning to
@ -2423,10 +2259,8 @@ xfs_remove(
}
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
if (error) {
IRELE(ip);
if (error)
goto std_return;
}
/*
* If we are using filestreams, kill the stream association.
@ -2438,7 +2272,6 @@ xfs_remove(
xfs_filestream_deassociate(ip);
xfs_itrace_exit(ip);
IRELE(ip);
/* Fall through to std_return with error = 0 */
std_return:
@ -2467,8 +2300,6 @@ xfs_remove(
cancel_flags |= XFS_TRANS_ABORT;
xfs_trans_cancel(tp, cancel_flags);
IRELE(ip);
goto std_return;
}
@ -2536,7 +2367,7 @@ xfs_link(
ips[1] = sip;
}
xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
/*
* Increment vnode ref counts since xfs_trans_commit &
@ -2840,7 +2671,6 @@ xfs_rmdir(
struct xfs_name *name,
xfs_inode_t *cdp)
{
bhv_vnode_t *dir_vp = XFS_ITOV(dp);
xfs_mount_t *mp = dp->i_mount;
xfs_trans_t *tp;
int error;
@ -2865,28 +2695,13 @@ xfs_rmdir(
return XFS_ERROR(error);
}
/*
* We need to get a reference to cdp before we get our log
* reservation. The reason for this is that we cannot call
* xfs_iget for an inode for which we do not have a reference
* once we've acquired a log reservation. This is because the
* inode we are trying to get might be in xfs_inactive going
* for a log reservation. Since we'll have to wait for the
* inactive code to complete before returning from xfs_iget,
* we need to make sure that we don't have log space reserved
* when we call xfs_iget. Instead we get an unlocked reference
* to the inode before getting our log reservation.
*/
IHOLD(cdp);
/*
* Get the dquots for the inodes.
*/
error = XFS_QM_DQATTACH(mp, dp, 0);
if (!error && dp != cdp)
if (!error)
error = XFS_QM_DQATTACH(mp, cdp, 0);
if (error) {
IRELE(cdp);
REMOVE_DEBUG_TRACE(__LINE__);
goto std_return;
}
@ -2913,7 +2728,6 @@ xfs_rmdir(
if (error) {
ASSERT(error != ENOSPC);
cancel_flags = 0;
IRELE(cdp);
goto error_return;
}
XFS_BMAP_INIT(&free_list, &first_block);
@ -2927,21 +2741,13 @@ xfs_rmdir(
error = xfs_lock_dir_and_entry(dp, cdp);
if (error) {
xfs_trans_cancel(tp, cancel_flags);
IRELE(cdp);
goto std_return;
}
IHOLD(dp);
xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
if (dp != cdp) {
/*
* Only increment the parent directory vnode count if
* we didn't bump it in looking up cdp. The only time
* we don't bump it is when we're looking up ".".
*/
VN_HOLD(dir_vp);
}
xfs_itrace_ref(cdp);
IHOLD(cdp);
xfs_trans_ijoin(tp, cdp, XFS_ILOCK_EXCL);
ASSERT(cdp->i_d.di_nlink >= 2);
@ -2994,12 +2800,6 @@ xfs_rmdir(
/* Determine these before committing transaction */
last_cdp_link = (cdp)->i_d.di_nlink==0;
/*
* Take an extra ref on the child vnode so that it
* does not go to xfs_inactive() from within the commit.
*/
IHOLD(cdp);
/*
* If this is a synchronous mount, make sure that the
* rmdir transaction goes to disk before returning to
@ -3014,19 +2814,15 @@ xfs_rmdir(
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES |
XFS_TRANS_ABORT));
IRELE(cdp);
goto std_return;
}
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
if (error) {
IRELE(cdp);
goto std_return;
}
IRELE(cdp);
/* Fall through to std_return with error = 0 or the errno
* from xfs_trans_commit. */
std_return:

8
fs/xfs/xfs_vnodeops.h
Просмотреть файл

@ -15,7 +15,6 @@ struct xfs_iomap;
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_readlink(struct xfs_inode *ip, char *link);
@ -48,9 +47,9 @@ int xfs_change_file_space(struct xfs_inode *ip, int cmd,
struct cred *credp, int attr_flags);
int xfs_rename(struct xfs_inode *src_dp, struct xfs_name *src_name,
struct xfs_inode *src_ip, struct xfs_inode *target_dp,
struct xfs_name *target_name);
struct xfs_name *target_name, struct xfs_inode *target_ip);
int xfs_attr_get(struct xfs_inode *ip, const char *name, char *value,
int *valuelenp, int flags, cred_t *cred);
int *valuelenp, int flags);
int xfs_attr_set(struct xfs_inode *dp, const char *name, char *value,
int valuelen, int flags);
int xfs_attr_remove(struct xfs_inode *dp, const char *name, int flags);
@ -61,9 +60,6 @@ int xfs_ioctl(struct xfs_inode *ip, struct file *filp,
ssize_t xfs_read(struct xfs_inode *ip, struct kiocb *iocb,
const struct iovec *iovp, unsigned int segs,
loff_t *offset, int ioflags);
ssize_t xfs_sendfile(struct xfs_inode *ip, struct file *filp,
loff_t *offset, int ioflags, size_t count,
read_actor_t actor, void *target);
ssize_t xfs_splice_read(struct xfs_inode *ip, struct file *infilp,
loff_t *ppos, struct pipe_inode_info *pipe, size_t count,
int flags, int ioflags);