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Trond Myklebust 11170fcc31 NFS: Fix a writeback race... 
patch 61e930a904 in mainline

This patch fixes a regression that was introduced by commit
44dd151d5c

We cannot zero the user page in nfs_mark_uptodate() any more, since

  a) We'd be modifying the page without holding the page lock
  b) We can race with other updates of the page, most notably
     because of the call to nfs_wb_page() in nfs_writepage_setup().

Instead, we do the zeroing in nfs_update_request() if we see that we're
creating a request that might potentially be marked as up to date.

Thanks to Olivier Paquet for reporting the bug and providing a test-case.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-16 09:37:01 -08:00
..
9p
9p: remove deprecated v9fs_fid_lookup_remove()
2007-08-23 10:13:45 -05:00
adfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
affs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
afs
afs: mntput called before dput
2007-09-11 17:21:19 -07:00
autofs
…
autofs4
autofs4: deadlock during create
2007-08-22 19:52:46 -07:00
befs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
bfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
cifs
[CIFS] Check return code on failed alloc
2007-08-18 00:15:20 +00:00
coda
coda: remove CODA_STORE/CODA_RELEASE upcalls
2007-07-21 17:49:14 -07:00
configfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
cramfs
…
debugfs
debugfs: remove rmdir() non-empty complaint
2007-07-18 15:49:48 -07:00
devpts
…
dlm
[DLM] fix basts for granted PR waiting CW
2007-08-14 10:31:02 +01:00
ecryptfs
eCryptfs: fix possible fault in ecryptfs_sync_page
2007-08-31 01:42:23 -07:00
efs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
exportfs
knfsd: exportfs: split out reconnecting a dentry from find_exported_dentry
2007-07-17 10:23:06 -07:00
ext2
fix inode_table test in ext234_check_descriptors
2007-07-26 11:35:17 -07:00
ext3
ext34: ensure do_split leaves enough free space in both blocks
2007-09-19 11:24:18 -07:00
ext4
ext34: ensure do_split leaves enough free space in both blocks
2007-09-19 11:24:18 -07:00
fat
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
freevxfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
fuse
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
gfs2
[GFS2] Revert remounting w/o acl option leaves acls enabled
2007-08-14 10:34:40 +01:00
hfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
hfsplus
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
hostfs
…
hpfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
hppfs
…
hugetlbfs
hugepage: fix broken check for offset alignment in hugepage mappings
2007-08-31 01:42:23 -07:00
isofs
isofs: mounting to regular file may succeed
2007-07-31 15:39:41 -07:00
jbd
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
jbd2
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
jffs2
[JFFS2] fix write deadlock regression
2007-09-02 18:18:38 +01:00
jfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
lockd
NLM: Fix a memory leak in nlmsvc_testlock
2007-10-09 12:38:26 -07:00
minix
minixfs: limit minixfs printks on corrupted dir i_size (CVE-2006-6058)
2007-11-16 09:37:00 -08:00
msdos
…
ncpfs
NCP: delete test of long-deceased CONFIG_NCPFS_DEBUGDENTRY
2007-07-31 15:39:41 -07:00
nfs
NFS: Fix a writeback race...
2007-11-16 09:37:01 -08:00
nfs_common
…
nfsd
knfsd: Validate filehandle type in fsid_source
2007-09-10 18:57:47 -07:00
nls
NLS: Remove obsolete Makefile entries
2007-07-16 09:05:52 -07:00
ntfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
ocfs2
ocfs2: fix write() performance regression
2007-11-16 09:37:01 -08:00
openpromfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
partitions
[PARTITION]: Sun/Solaris VTOC table corrections
2007-07-30 00:27:31 -07:00
proc
sched: keep utime/stime monotonic
2007-11-16 08:12:44 -08:00
qnx4
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
ramfs
NOMMU: Fix SYSV IPC SHM
2007-07-31 15:39:36 -07:00
reiserfs
quota: fix infinite loop
2007-09-11 17:21:19 -07:00
romfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
smbfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
sysfs
sysfs: don't warn on removal of a nonexistent binary file
2007-08-22 14:35:36 -07:00
sysv
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
udf
Fix possible NULL pointer dereference in udf_table_free_blocks()
2007-08-31 01:42:22 -07:00
ufs
ufs: fix sun state
2007-09-25 08:51:04 -07:00
vfat
…
xfs
xfs: eagerly remove vmap mappings to avoid upsetting Xen
2007-11-16 08:22:58 -08:00
aio.c
AIO: fix cleanup in io_submit_one(...)
2007-10-08 12:58:14 -07:00
anon_inodes.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
2007-07-17 11:50:26 -07:00
attr.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
coredump masking: ELF-FDPIC: enable core dump filtering
2007-07-19 10:04:47 -07:00
binfmt_elf.c
revert "PIE randomization"
2007-07-21 17:49:14 -07:00
binfmt_em86.c
…
binfmt_flat.c
binfmt_flat: checkpatch fixing minimum support for the blackfin relocations
2007-10-03 23:43:57 +08:00
binfmt_misc.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
binfmt_script.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
binfmt_som.c
…
bio.c
[BLOCK] Get rid of request_queue_t typedef
2007-07-24 09:28:11 +02:00
block_dev.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
buffer.c
fix some conversion overflows
2007-07-20 08:44:19 -07:00
char_dev.c
unregister_chrdev() return void
2007-07-19 10:04:43 -07:00
compat_ioctl.c
[PATCH] WE : Add missing auth compat-ioctl
2007-09-21 11:26:33 -04:00
compat.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
dcache.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
dcookies.c
Remove fs.h from mm.h
2007-07-29 17:09:29 -07:00
direct-io.c
dio: zero struct dio with kzalloc instead of manually
2007-08-20 22:50:25 -07:00
dnotify.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
dquot.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
drop_caches.c
invalidate_mapping_pages(): add cond_resched
2007-07-16 09:05:36 -07:00
eventfd.c
…
eventpoll.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
exec.c
signalfd simplification
2007-09-20 13:19:59 -07:00
fcntl.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
fifo.c
…
file_table.c
…
file.c
…
filesystems.c
…
fs-writeback.c
…
generic_acl.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00
inode.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
inotify_user.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
inotify.c
…
internal.h
…
ioctl.c
drop obsolete sys_ioctl export
2007-07-16 09:05:48 -07:00
ioprio.c
…
Kconfig
ocfs2: update docs for new features
2007-09-11 11:38:25 -07:00
Kconfig.binfmt
…
libfs.c
…
locks.c
locks: fix possible infinite loop in posix deadlock detection
2007-11-16 08:12:42 -08:00
Makefile
…
mbcache.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
mpage.c
…
namei.c
fs: remove path_walk export
2007-07-19 10:04:45 -07:00
namespace.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
nfsctl.c
nfsctl: use vfs_path_lookup
2007-07-19 10:04:45 -07:00
no-block.c
…
open.c
VFS: fix a race in lease-breaking during truncate
2007-07-31 15:39:42 -07:00
pipe.c
docbook: add pipes, other fixes
2007-07-27 08:08:51 +02:00
pnode.c
…
pnode.h
…
posix_acl.c
…
quota_v1.c
…
quota_v2.c
…
quota.c
[IA64] Fix build failure in fs/quota.c
2007-07-27 15:40:13 -07:00
read_write.c
…
read_write.h
…
readdir.c
…
select.c
Fix select on /proc files without ->poll
2007-09-11 17:21:20 -07:00
seq_file.c
seq_file: more atomicity in traverse()
2007-07-16 09:05:45 -07:00
signalfd.c
signalfd simplification
2007-09-20 13:19:59 -07:00
splice.c
splice: fix double kunmap() in vmsplice copy path
2007-11-16 08:12:43 -08:00
stack.c
…
stat.c
…
super.c
hugetlbfs: handle empty options string
2007-07-16 09:05:46 -07:00
sync.c
…
timerfd.c
make timerfd return a u64 and fix the __put_user
2007-07-26 11:35:17 -07:00
utimes.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00
xattr_acl.c
…
xattr.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00