microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
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Merge branch 'master' into upstream

This commit is contained in:
Jeff Garzik 2006-09-11 09:05:33 -04:00
Родитель cff93eb3d3 38f5745c5a
Коммит 10e299fc6d
34 изменённых файлов: 202 добавлений и 291 удалений
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4
arch/frv/Kconfig
Просмотреть файл

@ -29,6 +29,10 @@ config GENERIC_HARDIRQS
bool
default n
config GENERIC_TIME
bool
default y
config TIME_LOW_RES
bool
default y

81
arch/frv/kernel/time.c
Просмотреть файл

@ -32,8 +32,6 @@
#define TICK_SIZE (tick_nsec / 1000)
extern unsigned long wall_jiffies;
unsigned long __nongprelbss __clkin_clock_speed_HZ;
unsigned long __nongprelbss __ext_bus_clock_speed_HZ;
unsigned long __nongprelbss __res_bus_clock_speed_HZ;
@ -144,85 +142,6 @@ void time_init(void)
time_divisor_init();
}
/*
* This version of gettimeofday has near microsecond resolution.
*/
void do_gettimeofday(struct timeval *tv)
{
unsigned long seq;
unsigned long usec, sec;
unsigned long max_ntp_tick;
do {
unsigned long lost;
seq = read_seqbegin(&xtime_lock);
usec = 0;
lost = jiffies - wall_jiffies;
/*
* If time_adjust is negative then NTP is slowing the clock
* so make sure not to go into next possible interval.
* Better to lose some accuracy than have time go backwards..
*/
if (unlikely(time_adjust < 0)) {
max_ntp_tick = (USEC_PER_SEC / HZ) - tickadj;
usec = min(usec, max_ntp_tick);
if (lost)
usec += lost * max_ntp_tick;
}
else if (unlikely(lost))
usec += lost * (USEC_PER_SEC / HZ);
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry(&xtime_lock, seq));
while (usec >= 1000000) {
usec -= 1000000;
sec++;
}
tv->tv_sec = sec;
tv->tv_usec = usec;
}
EXPORT_SYMBOL(do_gettimeofday);
int do_settimeofday(struct timespec *tv)
{
time_t wtm_sec, sec = tv->tv_sec;
long wtm_nsec, nsec = tv->tv_nsec;
if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
return -EINVAL;
write_seqlock_irq(&xtime_lock);
/*
* This is revolting. We need to set "xtime" correctly. However, the
* value in this location is the value at the most recent update of
* wall time. Discover what correction gettimeofday() would have
* made, and then undo it!
*/
nsec -= 0 * NSEC_PER_USEC;
nsec -= (jiffies - wall_jiffies) * TICK_NSEC;
wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
set_normalized_timespec(&xtime, sec, nsec);
set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
ntp_clear();
write_sequnlock_irq(&xtime_lock);
clock_was_set();
return 0;
}
EXPORT_SYMBOL(do_settimeofday);
/*
* Scheduler clock - returns current time in nanosec units.
*/

4
arch/ia64/kernel/entry.S
Просмотреть файл

@ -1605,8 +1605,8 @@ sys_call_table:
data8 sys_ni_syscall // 1295 reserved for ppoll
data8 sys_unshare
data8 sys_splice
data8 sys_set_robust_list
data8 sys_get_robust_list
data8 sys_ni_syscall // reserved for set_robust_list
data8 sys_ni_syscall // reserved for get_robust_list
data8 sys_sync_file_range // 1300
data8 sys_tee
data8 sys_vmsplice

5
arch/ia64/kernel/head.S
Просмотреть файл

@ -197,6 +197,11 @@ start_ap:
;;
srlz.i
;;
{
flushrs // must be first insn in group
srlz.i
}
;;
/*
* Save the region registers, predicate before they get clobbered
*/

4
arch/ia64/kernel/perfmon.c
Просмотреть файл

@ -4936,13 +4936,15 @@ abort_locked:
if (likely(ctx)) {
DPRINT(("context unlocked\n"));
UNPROTECT_CTX(ctx, flags);
fput(file);
}
/* copy argument back to user, if needed */
if (call_made && PFM_CMD_RW_ARG(cmd) && copy_to_user(arg, args_k, base_sz*count)) ret = -EFAULT;
error_args:
if (file)
fput(file);
kfree(args_k);
DPRINT(("cmd=%s ret=%ld\n", PFM_CMD_NAME(cmd), ret));

28
arch/ia64/kernel/sys_ia64.c
Просмотреть файл

@ -163,10 +163,25 @@ sys_pipe (void)
return retval;
}
int ia64_mmap_check(unsigned long addr, unsigned long len,
unsigned long flags)
{
unsigned long roff;
/*
* Don't permit mappings into unmapped space, the virtual page table
* of a region, or across a region boundary. Note: RGN_MAP_LIMIT is
* equal to 2^n-PAGE_SIZE (for some integer n <= 61) and len > 0.
*/
roff = REGION_OFFSET(addr);
if ((len > RGN_MAP_LIMIT) || (roff > (RGN_MAP_LIMIT - len)))
return -EINVAL;
return 0;
}
static inline unsigned long
do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, unsigned long pgoff)
{
unsigned long roff;
struct file *file = NULL;
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
@ -188,17 +203,6 @@ do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, un
goto out;
}
/*
* Don't permit mappings into unmapped space, the virtual page table of a region,
* or across a region boundary. Note: RGN_MAP_LIMIT is equal to 2^n-PAGE_SIZE
* (for some integer n <= 61) and len > 0.
*/
roff = REGION_OFFSET(addr);
if ((len > RGN_MAP_LIMIT) || (roff > (RGN_MAP_LIMIT - len))) {
addr = -EINVAL;
goto out;
}
down_write(&current->mm->mmap_sem);
addr = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
up_write(&current->mm->mmap_sem);

2
arch/ia64/sn/kernel/setup.c
Просмотреть файл

@ -565,7 +565,7 @@ static void __init sn_init_pdas(char **cmdline_p)
* Also sets up a few fields in the nodepda. Also known as
* platform_cpu_init() by the ia64 machvec code.
*/
void __init sn_cpu_init(void)
void __cpuinit sn_cpu_init(void)
{
int cpuid;
int cpuphyid;

27
arch/sparc/kernel/sys_sparc.c
Просмотреть файл

@ -219,6 +219,21 @@ out:
return err;
}
int sparc_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
{
if (ARCH_SUN4C_SUN4 &&
(len > 0x20000000 ||
((flags & MAP_FIXED) &&
addr < 0xe0000000 && addr + len > 0x20000000)))
return -EINVAL;
/* See asm-sparc/uaccess.h */
if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE)
return -EINVAL;
return 0;
}
/* Linux version of mmap */
static unsigned long do_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags, unsigned long fd,
@ -233,25 +248,13 @@ static unsigned long do_mmap2(unsigned long addr, unsigned long len,
goto out;
}
retval = -EINVAL;
len = PAGE_ALIGN(len);
if (ARCH_SUN4C_SUN4 &&
(len > 0x20000000 ||
((flags & MAP_FIXED) &&
addr < 0xe0000000 && addr + len > 0x20000000)))
goto out_putf;
/* See asm-sparc/uaccess.h */
if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE)
goto out_putf;
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
down_write(&current->mm->mmap_sem);
retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
up_write(&current->mm->mmap_sem);
out_putf:
if (file)
fput(file);
out:

36
arch/sparc64/kernel/sys_sparc.c
Просмотреть файл

@ -548,6 +548,26 @@ asmlinkage long sparc64_personality(unsigned long personality)
return ret;
}
int sparc64_mmap_check(unsigned long addr, unsigned long len,
unsigned long flags)
{
if (test_thread_flag(TIF_32BIT)) {
if (len >= STACK_TOP32)
return -EINVAL;
if ((flags & MAP_FIXED) && addr > STACK_TOP32 - len)
return -EINVAL;
} else {
if (len >= VA_EXCLUDE_START)
return -EINVAL;
if ((flags & MAP_FIXED) && invalid_64bit_range(addr, len))
return -EINVAL;
}
return 0;
}
/* Linux version of mmap */
asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags, unsigned long fd,
@ -563,27 +583,11 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
}
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
len = PAGE_ALIGN(len);
retval = -EINVAL;
if (test_thread_flag(TIF_32BIT)) {
if (len >= STACK_TOP32)
goto out_putf;
if ((flags & MAP_FIXED) && addr > STACK_TOP32 - len)
goto out_putf;
} else {
if (len >= VA_EXCLUDE_START)
goto out_putf;
if ((flags & MAP_FIXED) && invalid_64bit_range(addr, len))
goto out_putf;
}
down_write(&current->mm->mmap_sem);
retval = do_mmap(file, addr, len, prot, flags, off);
up_write(&current->mm->mmap_sem);
out_putf:
if (file)
fput(file);
out:

2
drivers/ide/ide-proc.c
Просмотреть файл

@ -376,6 +376,8 @@ static int proc_ide_read_media
break;
case ide_floppy:media = "floppy\n";
break;
case ide_optical:media = "optical\n";
break;
default: media = "UNKNOWN\n";
break;
}

2
drivers/ide/pci/sis5513.c
Просмотреть файл

@ -86,6 +86,8 @@ static const struct {
u8 chipset_family;
u8 flags;
} SiSHostChipInfo[] = {
{ "SiS968", PCI_DEVICE_ID_SI_968, ATA_133 },
{ "SiS966", PCI_DEVICE_ID_SI_966, ATA_133 },
{ "SiS965", PCI_DEVICE_ID_SI_965, ATA_133 },
{ "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 },
{ "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 },

11
fs/ext3/inode.c
Просмотреть файл

@ -1009,11 +1009,14 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode,
buffer_trace_init(&dummy.b_history);
err = ext3_get_blocks_handle(handle, inode, block, 1,
&dummy, create, 1);
if (err == 1) {
/*
* ext3_get_blocks_handle() returns number of blocks
* mapped. 0 in case of a HOLE.
*/
if (err > 0) {
if (err > 1)
WARN_ON(1);
err = 0;
} else if (err >= 0) {
WARN_ON(1);
err = -EIO;
}
*errp = err;
if (!err && buffer_mapped(&dummy)) {

50
fs/nfs/direct.c
Просмотреть файл

@ -100,25 +100,6 @@ static inline int put_dreq(struct nfs_direct_req *dreq)
return atomic_dec_and_test(&dreq->io_count);
}
/*
* "size" is never larger than rsize or wsize.
*/
static inline int nfs_direct_count_pages(unsigned long user_addr, size_t size)
{
int page_count;
page_count = (user_addr + size + PAGE_SIZE - 1) >> PAGE_SHIFT;
page_count -= user_addr >> PAGE_SHIFT;
BUG_ON(page_count < 0);
return page_count;
}
static inline unsigned int nfs_max_pages(unsigned int size)
{
return (size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
}
/**
* nfs_direct_IO - NFS address space operation for direct I/O
* @rw: direction (read or write)
@ -276,28 +257,24 @@ static ssize_t nfs_direct_read_schedule(struct nfs_direct_req *dreq, unsigned lo
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->dentry->d_inode;
size_t rsize = NFS_SERVER(inode)->rsize;
unsigned int rpages = nfs_max_pages(rsize);
unsigned int pgbase;
int result;
ssize_t started = 0;
get_dreq(dreq);
pgbase = user_addr & ~PAGE_MASK;
do {
struct nfs_read_data *data;
size_t bytes;
pgbase = user_addr & ~PAGE_MASK;
bytes = min(rsize,count);
result = -ENOMEM;
data = nfs_readdata_alloc(rpages);
data = nfs_readdata_alloc(pgbase + bytes);
if (unlikely(!data))
break;
bytes = rsize;
if (count < rsize)
bytes = count;
data->npages = nfs_direct_count_pages(user_addr, bytes);
down_read(&current->mm->mmap_sem);
result = get_user_pages(current, current->mm, user_addr,
data->npages, 1, 0, data->pagevec, NULL);
@ -344,8 +321,10 @@ static ssize_t nfs_direct_read_schedule(struct nfs_direct_req *dreq, unsigned lo
started += bytes;
user_addr += bytes;
pos += bytes;
/* FIXME: Remove this unnecessary math from final patch */
pgbase += bytes;
pgbase &= ~PAGE_MASK;
BUG_ON(pgbase != (user_addr & ~PAGE_MASK));
count -= bytes;
} while (count != 0);
@ -524,7 +503,7 @@ static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode
static void nfs_alloc_commit_data(struct nfs_direct_req *dreq)
{
dreq->commit_data = nfs_commit_alloc(0);
dreq->commit_data = nfs_commit_alloc();
if (dreq->commit_data != NULL)
dreq->commit_data->req = (struct nfs_page *) dreq;
}
@ -605,28 +584,24 @@ static ssize_t nfs_direct_write_schedule(struct nfs_direct_req *dreq, unsigned l
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->dentry->d_inode;
size_t wsize = NFS_SERVER(inode)->wsize;
unsigned int wpages = nfs_max_pages(wsize);
unsigned int pgbase;
int result;
ssize_t started = 0;
get_dreq(dreq);
pgbase = user_addr & ~PAGE_MASK;
do {
struct nfs_write_data *data;
size_t bytes;
pgbase = user_addr & ~PAGE_MASK;
bytes = min(wsize,count);
result = -ENOMEM;
data = nfs_writedata_alloc(wpages);
data = nfs_writedata_alloc(pgbase + bytes);
if (unlikely(!data))
break;
bytes = wsize;
if (count < wsize)
bytes = count;
data->npages = nfs_direct_count_pages(user_addr, bytes);
down_read(&current->mm->mmap_sem);
result = get_user_pages(current, current->mm, user_addr,
data->npages, 0, 0, data->pagevec, NULL);
@ -676,8 +651,11 @@ static ssize_t nfs_direct_write_schedule(struct nfs_direct_req *dreq, unsigned l
started += bytes;
user_addr += bytes;
pos += bytes;
/* FIXME: Remove this useless math from the final patch */
pgbase += bytes;
pgbase &= ~PAGE_MASK;
BUG_ON(pgbase != (user_addr & ~PAGE_MASK));
count -= bytes;
} while (count != 0);

24
fs/nfs/read.c
Просмотреть файл

@ -43,13 +43,15 @@ static mempool_t *nfs_rdata_mempool;
#define MIN_POOL_READ (32)
struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
struct nfs_read_data *nfs_readdata_alloc(size_t len)
{
unsigned int pagecount = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
struct nfs_read_data *p = mempool_alloc(nfs_rdata_mempool, SLAB_NOFS);
if (p) {
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
p->npages = pagecount;
if (pagecount <= ARRAY_SIZE(p->page_array))
p->pagevec = p->page_array;
else {
@ -140,7 +142,7 @@ static int nfs_readpage_sync(struct nfs_open_context *ctx, struct inode *inode,
int result;
struct nfs_read_data *rdata;
rdata = nfs_readdata_alloc(1);
rdata = nfs_readdata_alloc(count);
if (!rdata)
return -ENOMEM;
@ -336,25 +338,25 @@ static int nfs_pagein_multi(struct list_head *head, struct inode *inode)
struct nfs_page *req = nfs_list_entry(head->next);
struct page *page = req->wb_page;
struct nfs_read_data *data;
unsigned int rsize = NFS_SERVER(inode)->rsize;
unsigned int nbytes, offset;
size_t rsize = NFS_SERVER(inode)->rsize, nbytes;
unsigned int offset;
int requests = 0;
LIST_HEAD(list);
nfs_list_remove_request(req);
nbytes = req->wb_bytes;
for(;;) {
data = nfs_readdata_alloc(1);
do {
size_t len = min(nbytes,rsize);
data = nfs_readdata_alloc(len);
if (!data)
goto out_bad;
INIT_LIST_HEAD(&data->pages);
list_add(&data->pages, &list);
requests++;
if (nbytes <= rsize)
break;
nbytes -= rsize;
}
nbytes -= len;
} while(nbytes != 0);
atomic_set(&req->wb_complete, requests);
ClearPageError(page);
@ -402,7 +404,7 @@ static int nfs_pagein_one(struct list_head *head, struct inode *inode)
if (NFS_SERVER(inode)->rsize < PAGE_CACHE_SIZE)
return nfs_pagein_multi(head, inode);
data = nfs_readdata_alloc(NFS_SERVER(inode)->rpages);
data = nfs_readdata_alloc(NFS_SERVER(inode)->rsize);
if (!data)
goto out_bad;

37
fs/nfs/write.c
Просмотреть файл

@ -90,22 +90,13 @@ static mempool_t *nfs_commit_mempool;
static DECLARE_WAIT_QUEUE_HEAD(nfs_write_congestion);
struct nfs_write_data *nfs_commit_alloc(unsigned int pagecount)
struct nfs_write_data *nfs_commit_alloc(void)
{
struct nfs_write_data *p = mempool_alloc(nfs_commit_mempool, SLAB_NOFS);
if (p) {
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
if (pagecount <= ARRAY_SIZE(p->page_array))
p->pagevec = p->page_array;
else {
p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_NOFS);
if (!p->pagevec) {
mempool_free(p, nfs_commit_mempool);
p = NULL;
}
}
}
return p;
}
@ -117,13 +108,15 @@ void nfs_commit_free(struct nfs_write_data *p)
mempool_free(p, nfs_commit_mempool);
}
struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
struct nfs_write_data *nfs_writedata_alloc(size_t len)
{
unsigned int pagecount = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
struct nfs_write_data *p = mempool_alloc(nfs_wdata_mempool, SLAB_NOFS);
if (p) {
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
p->npages = pagecount;
if (pagecount <= ARRAY_SIZE(p->page_array))
p->pagevec = p->page_array;
else {
@ -208,7 +201,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
int result, written = 0;
struct nfs_write_data *wdata;
wdata = nfs_writedata_alloc(1);
wdata = nfs_writedata_alloc(wsize);
if (!wdata)
return -ENOMEM;
@ -999,24 +992,24 @@ static int nfs_flush_multi(struct inode *inode, struct list_head *head, int how)
struct nfs_page *req = nfs_list_entry(head->next);
struct page *page = req->wb_page;
struct nfs_write_data *data;
unsigned int wsize = NFS_SERVER(inode)->wsize;
unsigned int nbytes, offset;
size_t wsize = NFS_SERVER(inode)->wsize, nbytes;
unsigned int offset;
int requests = 0;
LIST_HEAD(list);
nfs_list_remove_request(req);
nbytes = req->wb_bytes;
for (;;) {
data = nfs_writedata_alloc(1);
do {
size_t len = min(nbytes, wsize);
data = nfs_writedata_alloc(len);
if (!data)
goto out_bad;
list_add(&data->pages, &list);
requests++;
if (nbytes <= wsize)
break;
nbytes -= wsize;
}
nbytes -= len;
} while (nbytes != 0);
atomic_set(&req->wb_complete, requests);
ClearPageError(page);
@ -1070,7 +1063,7 @@ static int nfs_flush_one(struct inode *inode, struct list_head *head, int how)
struct nfs_write_data *data;
unsigned int count;
data = nfs_writedata_alloc(NFS_SERVER(inode)->wpages);
data = nfs_writedata_alloc(NFS_SERVER(inode)->wsize);
if (!data)
goto out_bad;
@ -1378,7 +1371,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how)
struct nfs_write_data *data;
struct nfs_page *req;
data = nfs_commit_alloc(NFS_SERVER(inode)->wpages);
data = nfs_commit_alloc();
if (!data)
goto out_bad;

1
fs/super.c
Просмотреть файл

@ -49,6 +49,7 @@ DEFINE_SPINLOCK(sb_lock);
/**
* alloc_super - create new superblock
* @type: filesystem type superblock should belong to
*
* Allocates and initializes a new &struct super_block. alloc_super()
* returns a pointer new superblock or %NULL if allocation had failed.

2
include/asm-i386/Kbuild
Просмотреть файл

@ -1,5 +1,5 @@
include include/asm-generic/Kbuild.asm
header-y += boot.h cpufeature.h debugreg.h ldt.h setup.h ucontext.h
header-y += boot.h debugreg.h ldt.h setup.h ucontext.h
unifdef-y += mtrr.h vm86.h

8
include/asm-ia64/mman.h
Просмотреть файл

@ -22,4 +22,12 @@
#define MCL_CURRENT 1 /* lock all current mappings */
#define MCL_FUTURE 2 /* lock all future mappings */
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#define arch_mmap_check ia64_mmap_check
int ia64_mmap_check(unsigned long addr, unsigned long len,
unsigned long flags);
#endif
#endif
#endif /* _ASM_IA64_MMAN_H */

3
include/asm-ia64/unistd.h
Просмотреть файл

@ -286,8 +286,7 @@
/* 1294, 1295 reserved for pselect/ppoll */
#define __NR_unshare 1296
#define __NR_splice 1297
#define __NR_set_robust_list 1298
#define __NR_get_robust_list 1299
/* 1298, 1299 reserved for set_robust_list/get_robust_list */
#define __NR_sync_file_range 1300
#define __NR_tee 1301
#define __NR_vmsplice 1302

2
include/asm-sh/page.h
Просмотреть файл

@ -104,7 +104,7 @@ typedef struct { unsigned long pgprot; } pgprot_t;
/* PFN start number, because of __MEMORY_START */
#define PFN_START (__MEMORY_START >> PAGE_SHIFT)
#define ARCH_PFN_OFFSET (FPN_START)
#define ARCH_PFN_OFFSET (PFN_START)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define pfn_valid(pfn) (((pfn) - PFN_START) < max_mapnr)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)

8
include/asm-sparc/mman.h
Просмотреть файл

@ -35,4 +35,12 @@
#define MADV_FREE 0x5 /* (Solaris) contents can be freed */
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#define arch_mmap_check sparc_mmap_check
int sparc_mmap_check(unsigned long addr, unsigned long len,
unsigned long flags);
#endif
#endif
#endif /* __SPARC_MMAN_H__ */

8
include/asm-sparc64/mman.h
Просмотреть файл

@ -35,4 +35,12 @@
#define MADV_FREE 0x5 /* (Solaris) contents can be freed */
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#define arch_mmap_check sparc64_mmap_check
int sparc64_mmap_check(unsigned long addr, unsigned long len,
unsigned long flags);
#endif
#endif
#endif /* __SPARC64_MMAN_H__ */

2
include/linux/atmdev.h
Просмотреть файл

@ -7,7 +7,6 @@
#define LINUX_ATMDEV_H
#include <linux/device.h>
#include <linux/atmapi.h>
#include <linux/atm.h>
#include <linux/atmioc.h>
@ -210,6 +209,7 @@ struct atm_cirange {
#ifdef __KERNEL__
#include <linux/device.h>
#include <linux/wait.h> /* wait_queue_head_t */
#include <linux/time.h> /* struct timeval */
#include <linux/net.h>

1
include/linux/hrtimer.h
Просмотреть файл

@ -80,6 +80,7 @@ struct hrtimer_sleeper {
* @get_softirq_time: function to retrieve the current time from the softirq
* @curr_timer: the timer which is executing a callback right now
* @softirq_time: the time when running the hrtimer queue in the softirq
* @lock_key: the lock_class_key for use with lockdep
*/
struct hrtimer_base {
clockid_t index;

7
include/linux/ktime.h
Просмотреть файл

@ -56,7 +56,8 @@ typedef union {
#endif
} ktime_t;
#define KTIME_MAX (~((u64)1 << 63))
#define KTIME_MAX ((s64)~((u64)1 << 63))
#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC)
/*
* ktime_t definitions when using the 64-bit scalar representation:
@ -73,6 +74,10 @@ typedef union {
*/
static inline ktime_t ktime_set(const long secs, const unsigned long nsecs)
{
#if (BITS_PER_LONG == 64)
if (unlikely(secs >= KTIME_SEC_MAX))
return (ktime_t){ .tv64 = KTIME_MAX };
#endif
return (ktime_t) { .tv64 = (s64)secs * NSEC_PER_SEC + (s64)nsecs };
}

6
include/linux/nfs_fs.h
Просмотреть файл

@ -427,7 +427,7 @@ extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
extern void nfs_writedata_release(void *);
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
struct nfs_write_data *nfs_commit_alloc(unsigned int pagecount);
struct nfs_write_data *nfs_commit_alloc(void);
void nfs_commit_free(struct nfs_write_data *p);
#endif
@ -478,7 +478,7 @@ static inline int nfs_wb_page(struct inode *inode, struct page* page)
/*
* Allocate nfs_write_data structures
*/
extern struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount);
extern struct nfs_write_data *nfs_writedata_alloc(size_t len);
/*
* linux/fs/nfs/read.c
@ -492,7 +492,7 @@ extern void nfs_readdata_release(void *data);
/*
* Allocate nfs_read_data structures
*/
extern struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount);
extern struct nfs_read_data *nfs_readdata_alloc(size_t len);
/*
* linux/fs/nfs3proc.c

4
include/linux/nfs_xdr.h
Просмотреть файл

@ -729,7 +729,7 @@ struct nfs_read_data {
struct list_head pages; /* Coalesced read requests */
struct nfs_page *req; /* multi ops per nfs_page */
struct page **pagevec;
unsigned int npages; /* active pages in pagevec */
unsigned int npages; /* Max length of pagevec */
struct nfs_readargs args;
struct nfs_readres res;
#ifdef CONFIG_NFS_V4
@ -748,7 +748,7 @@ struct nfs_write_data {
struct list_head pages; /* Coalesced requests we wish to flush */
struct nfs_page *req; /* multi ops per nfs_page */
struct page **pagevec;
unsigned int npages; /* active pages in pagevec */
unsigned int npages; /* Max length of pagevec */
struct nfs_writeargs args; /* argument struct */
struct nfs_writeres res; /* result struct */
#ifdef CONFIG_NFS_V4

2
include/linux/pci_ids.h
Просмотреть файл

@ -648,6 +648,8 @@
#define PCI_DEVICE_ID_SI_962 0x0962
#define PCI_DEVICE_ID_SI_963 0x0963
#define PCI_DEVICE_ID_SI_965 0x0965
#define PCI_DEVICE_ID_SI_966 0x0966
#define PCI_DEVICE_ID_SI_968 0x0968
#define PCI_DEVICE_ID_SI_5511 0x5511
#define PCI_DEVICE_ID_SI_5513 0x5513
#define PCI_DEVICE_ID_SI_5517 0x5517

84
kernel/futex.c
Просмотреть файл

@ -1120,9 +1120,10 @@ static int futex_wait(u32 __user *uaddr, u32 val, unsigned long time)
* if there are waiters then it will block, it does PI, etc. (Due to
* races the kernel might see a 0 value of the futex too.)
*/
static int do_futex_lock_pi(u32 __user *uaddr, int detect, int trylock,
struct hrtimer_sleeper *to)
static int futex_lock_pi(u32 __user *uaddr, int detect, unsigned long sec,
long nsec, int trylock)
{
struct hrtimer_sleeper timeout, *to = NULL;
struct task_struct *curr = current;
struct futex_hash_bucket *hb;
u32 uval, newval, curval;
@ -1132,6 +1133,13 @@ static int do_futex_lock_pi(u32 __user *uaddr, int detect, int trylock,
if (refill_pi_state_cache())
return -ENOMEM;
if (sec != MAX_SCHEDULE_TIMEOUT) {
to = &timeout;
hrtimer_init(&to->timer, CLOCK_REALTIME, HRTIMER_ABS);
hrtimer_init_sleeper(to, current);
to->timer.expires = ktime_set(sec, nsec);
}
q.pi_state = NULL;
retry:
down_read(&curr->mm->mmap_sem);
@ -1307,7 +1315,7 @@ static int do_futex_lock_pi(u32 __user *uaddr, int detect, int trylock,
if (!detect && ret == -EDEADLK && 0)
force_sig(SIGKILL, current);
return ret;
return ret != -EINTR ? ret : -ERESTARTNOINTR;
out_unlock_release_sem:
queue_unlock(&q, hb);
@ -1341,76 +1349,6 @@ static int do_futex_lock_pi(u32 __user *uaddr, int detect, int trylock,
return ret;
}
/*
* Restart handler
*/
static long futex_lock_pi_restart(struct restart_block *restart)
{
struct hrtimer_sleeper timeout, *to = NULL;
int ret;
restart->fn = do_no_restart_syscall;
if (restart->arg2 || restart->arg3) {
to = &timeout;
hrtimer_init(&to->timer, CLOCK_REALTIME, HRTIMER_ABS);
hrtimer_init_sleeper(to, current);
to->timer.expires.tv64 = ((u64)restart->arg1 << 32) |
(u64) restart->arg0;
}
pr_debug("lock_pi restart: %p, %d (%d)\n",
(u32 __user *)restart->arg0, current->pid);
ret = do_futex_lock_pi((u32 __user *)restart->arg0, restart->arg1,
0, to);
if (ret != -EINTR)
return ret;
restart->fn = futex_lock_pi_restart;
/* The other values are filled in */
return -ERESTART_RESTARTBLOCK;
}
/*
* Called from the syscall entry below.
*/
static int futex_lock_pi(u32 __user *uaddr, int detect, unsigned long sec,
long nsec, int trylock)
{
struct hrtimer_sleeper timeout, *to = NULL;
struct restart_block *restart;
int ret;
if (sec != MAX_SCHEDULE_TIMEOUT) {
to = &timeout;
hrtimer_init(&to->timer, CLOCK_REALTIME, HRTIMER_ABS);
hrtimer_init_sleeper(to, current);
to->timer.expires = ktime_set(sec, nsec);
}
ret = do_futex_lock_pi(uaddr, detect, trylock, to);
if (ret != -EINTR)
return ret;
pr_debug("lock_pi interrupted: %p, %d (%d)\n", uaddr, current->pid);
restart = &current_thread_info()->restart_block;
restart->fn = futex_lock_pi_restart;
restart->arg0 = (unsigned long) uaddr;
restart->arg1 = detect;
if (to) {
restart->arg2 = to->timer.expires.tv64 & 0xFFFFFFFF;
restart->arg3 = to->timer.expires.tv64 >> 32;
} else
restart->arg2 = restart->arg3 = 0;
return -ERESTART_RESTARTBLOCK;
}
/*
* Userspace attempted a TID -> 0 atomic transition, and failed.
* This is the in-kernel slowpath: we look up the PI state (if any),

2
kernel/panic.c
Просмотреть файл

@ -173,7 +173,7 @@ const char *print_tainted(void)
void add_taint(unsigned flag)
{
debug_locks_off(); /* can't trust the integrity of the kernel anymore */
debug_locks = 0; /* can't trust the integrity of the kernel anymore */
tainted |= flag;
}
EXPORT_SYMBOL(add_taint);

6
kernel/power/Kconfig
Просмотреть файл

@ -56,7 +56,7 @@ config PM_TRACE
config SOFTWARE_SUSPEND
bool "Software Suspend"
depends on PM && SWAP && (X86 && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)
depends on PM && SWAP && ((X86 && (!SMP || SUSPEND_SMP) && !X86_PAE) || ((FRV || PPC32) && !SMP))
---help---
Enable the possibility of suspending the machine.
It doesn't need ACPI or APM.
@ -78,6 +78,10 @@ config SOFTWARE_SUSPEND
For more information take a look at <file:Documentation/power/swsusp.txt>.
(For now, swsusp is incompatible with PAE aka HIGHMEM_64G on i386.
we need identity mapping for resume to work, and that is trivial
to get with 4MB pages, but less than trivial on PAE).
config PM_STD_PARTITION
string "Default resume partition"
depends on SOFTWARE_SUSPEND

2
kernel/spinlock.c
Просмотреть файл

@ -72,7 +72,7 @@ EXPORT_SYMBOL(_write_trylock);
* not re-enabled during lock-acquire (which the preempt-spin-ops do):
*/
#if !defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP) || \
defined(CONFIG_PROVE_LOCKING)
defined(CONFIG_DEBUG_LOCK_ALLOC)
void __lockfunc _read_lock(rwlock_t *lock)
{

17
mm/mmap.c
Просмотреть файл

@ -30,6 +30,10 @@
#include <asm/cacheflush.h>
#include <asm/tlb.h>
#ifndef arch_mmap_check
#define arch_mmap_check(addr, len, flags) (0)
#endif
static void unmap_region(struct mm_struct *mm,
struct vm_area_struct *vma, struct vm_area_struct *prev,
unsigned long start, unsigned long end);
@ -913,6 +917,10 @@ unsigned long do_mmap_pgoff(struct file * file, unsigned long addr,
if (!len)
return -EINVAL;
error = arch_mmap_check(addr, len, flags);
if (error)
return error;
/* Careful about overflows.. */
len = PAGE_ALIGN(len);
if (!len || len > TASK_SIZE)
@ -1859,6 +1867,7 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
unsigned long flags;
struct rb_node ** rb_link, * rb_parent;
pgoff_t pgoff = addr >> PAGE_SHIFT;
int error;
len = PAGE_ALIGN(len);
if (!len)
@ -1867,6 +1876,12 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
if ((addr + len) > TASK_SIZE || (addr + len) < addr)
return -EINVAL;
flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
error = arch_mmap_check(addr, len, flags);
if (error)
return error;
/*
* mlock MCL_FUTURE?
*/
@ -1907,8 +1922,6 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
if (security_vm_enough_memory(len >> PAGE_SHIFT))
return -ENOMEM;
flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
/* Can we just expand an old private anonymous mapping? */
if (vma_merge(mm, prev, addr, addr + len, flags,
NULL, NULL, pgoff, NULL))

11
mm/truncate.c
Просмотреть файл

@ -68,10 +68,10 @@ invalidate_complete_page(struct address_space *mapping, struct page *page)
return 0;
write_lock_irq(&mapping->tree_lock);
if (PageDirty(page)) {
write_unlock_irq(&mapping->tree_lock);
return 0;
}
if (PageDirty(page))
goto failed;
if (page_count(page) != 2) /* caller's ref + pagecache ref */
goto failed;
BUG_ON(PagePrivate(page));
__remove_from_page_cache(page);
@ -79,6 +79,9 @@ invalidate_complete_page(struct address_space *mapping, struct page *page)
ClearPageUptodate(page);
page_cache_release(page); /* pagecache ref */
return 1;
failed:
write_unlock_irq(&mapping->tree_lock);
return 0;
}
/**