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Shirish Pargaonkar 2c0c2a08be cifs: fix oops while traversing open file list (try #4) 
While traversing the linked list of open file handles, if the identfied
file handle is invalid, a reopen is attempted and if it fails, we
resume traversing where we stopped and cifs can oops while accessing
invalid next element, for list might have changed.

So mark the invalid file handle and attempt reopen if no
valid file handle is found in rest of the list.
If reopen fails, move the invalid file handle to the end of the list
and start traversing the list again from the begining.
Repeat this four times before giving up and returning an error if
file reopen keeps failing.

Cc: <stable@vger.kernel.org>
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-05-23 12:33:18 +04:00
..
9p
9p changes for the 3.4 merge window
2012-03-28 09:58:38 -07:00
adfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
affs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
afs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
autofs4
autofs: make the autofsv5 packet file descriptor use a packetized pipe
2012-04-29 13:30:08 -07:00
befs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
bfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2012-05-06 10:20:07 -07:00
cachefiles
switch touch_atime to struct path
2012-03-20 21:29:41 -04:00
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2012-03-28 10:01:29 -07:00
cifs
cifs: fix oops while traversing open file list (try #4)
2012-05-23 12:33:18 +04:00
coda
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
configfs
make configfs_pin_fs() return root dentry on success
2012-03-20 21:29:48 -04:00
cramfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
debugfs
simple_open: automatically convert to simple_open()
2012-04-05 15:25:50 -07:00
devpts
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
dlm
dlm fixes for 3.4
2012-04-23 18:22:42 -07:00
ecryptfs
ecryptfs: make register_filesystem() the last potential failure exit
2012-03-20 21:29:49 -04:00
efs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
exofs
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
2012-03-28 20:04:27 -07:00
exportfs
…
ext2
migrate ext2_fs.h guts to fs/ext2/ext2.h
2012-03-31 16:03:16 -04:00
ext3
ext3: move headers to fs/ext3/
2012-03-31 16:03:16 -04:00
ext4
Ext4 bug fixes for 3.4
2012-04-23 19:52:00 -07:00
fat
fat: fix bug in enforcing Long File Name length
2012-03-23 16:58:40 -07:00
freevxfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
fscache
FS-Cache: Fix __fscache_uncache_all_inode_pages()'s outer loop
2011-07-21 10:59:16 -07:00
fuse
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
2012-04-18 17:29:05 -07:00
gfs2
GFS2: Instruct DLM to avoid queue convert slowdown
2012-04-24 13:26:50 +01:00
hfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
hfsplus
hfsplus: Fix potential buffer overflows
2012-05-04 17:11:24 -07:00
hostfs
Merge branch 'for-linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
2012-03-27 18:29:53 -07:00
hpfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
hppfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
hugetlbfs
hugetlbfs: lockdep annotate root inode properly
2012-04-25 21:26:34 -07:00
isofs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
jbd
Power management updates for 3.4
2012-03-21 10:15:51 -07:00
jbd2
jbd2: use GFP_NOFS for blkdev_issue_flush
2012-04-23 21:43:41 -04:00
jffs2
jffs2: Fix lock acquisition order bug in gc path
2012-05-07 20:30:14 +01:00
jfs
jfs: mising cleanup on register_filesystem() failure
2012-03-20 21:29:48 -04:00
lockd
lockd: fix the endianness bug
2012-04-13 13:50:52 -04:00
logfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
minix
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
ncpfs
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
nfs
NFSv4.1: Use the correct hostname in the client identifier string
2012-04-30 12:04:58 -04:00
nfs_common
…
nfsd
nfsd: fix nfs4recover.c printk format warning
2012-04-30 12:28:48 -07:00
nilfs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
nls
NLS: raname "maxlen" to "maxout" in UTF conversion routines
2011-11-26 19:58:47 -08:00
notify
fs/notify/notification.c: make subsys_initcall function static
2012-03-23 16:58:31 -07:00
ntfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
ocfs2
ocfs2: ->e_leaf_clusters endianness breakage
2012-04-13 12:31:43 -04:00
omfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
openpromfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
proc
proc/pid/pagemap: correctly report non-present ptes and holes between vmas
2012-05-10 15:06:44 -07:00
pstore
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
qnx4
qnx4: new helper - try_extent()
2012-03-20 21:29:52 -04:00
qnx6
fs: initial qnx6fs addition
2012-03-20 21:29:38 -04:00
quota
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-03-28 10:00:14 -07:00
ramfs
tidy up after d_make_root() conversion
2012-03-20 21:29:37 -04:00
reiserfs
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
romfs
MTD merge for 3.4
2012-03-30 17:31:56 -07:00
squashfs
Add an extra mount time sanity check, plus some code cleanups and bug fixes.
2012-03-28 18:05:54 -07:00
sysfs
sysfs: handle 'parent deleted before child added'
2012-04-10 14:48:51 -07:00
sysv
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
ubifs
- Improve error messages
2012-03-23 09:27:40 -07:00
udf
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-03-28 10:00:14 -07:00
ufs
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
xfs
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
aio.c
kill mm argument of vm_munmap()
2012-04-21 01:58:20 -04:00
anon_inodes.c
anon_inodes: move allocation of anon_inode into ->mount()
2012-03-20 21:29:45 -04:00
attr.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
bad_inode.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
binfmt_aout.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_elf_fdpic.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_elf.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_em86.c
__register_binfmt() made void
2012-03-20 21:29:46 -04:00
binfmt_flat.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_misc.c
magic.h: move some FS magic numbers into magic.h
2012-03-23 16:58:31 -07:00
binfmt_script.c
__register_binfmt() made void
2012-03-20 21:29:46 -04:00
binfmt_som.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
bio-integrity.c
fs: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:21 +08:00
bio.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
block_dev.c
magic.h: move some FS magic numbers into magic.h
2012-03-23 16:58:31 -07:00
buffer.c
fs/buffer.c: remove BUG() in possible but rare condition
2012-04-25 21:26:33 -07:00
char_dev.c
char_dev.c: fix up some whitespace errors
2011-12-13 11:18:17 -08:00
compat_binfmt_elf.c
…
compat_ioctl.c
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
compat.c
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 18:12:23 -07:00
dcache.c
vfs: make word-at-a-time accesses handle a non-existing page
2012-05-03 14:01:40 -07:00
dcookies.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
direct-io.c
Restore direct_io / truncate locking API
2012-02-23 15:56:21 -08:00
drop_caches.c
…
eventfd.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
eventpoll.c
epoll: clear the tfile_check_list on -ELOOP
2012-04-25 21:26:33 -07:00
exec.c
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-04-04 10:04:42 -07:00
fcntl.c
Wrap accesses to the fd_sets in struct fdtable
2012-02-19 10:30:52 -08:00
fhandle.c
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
2012-01-06 23:16:53 -05:00
fifo.c
…
file_table.c
vfs: drop_file_write_access() made static
2012-03-20 21:29:32 -04:00
file.c
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 18:12:23 -07:00
filesystems.c
vfs: convert fs_supers to hlist
2012-01-03 22:52:39 -05:00
fs_struct.c
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
fs-writeback.c
trivial writeback fixes
2012-03-28 10:07:27 -07:00
generic_acl.c
switch posix_acl_equiv_mode() to umode_t *
2011-08-01 02:10:06 -04:00
inode.c
trim includes in inode.c
2012-03-20 21:29:51 -04:00
internal.h
vfs: protect remounting superblock read-only
2012-01-06 23:20:12 -05:00
ioctl.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
ioprio.c
block: strip out locking optimization in put_io_context()
2012-02-07 07:51:30 +01:00
Kconfig
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
Kconfig.binfmt
fs: binfmt_elf: create Kconfig variable for PIE randomization
2012-01-10 16:30:51 -08:00
libfs.c
dentry leak in simple_fill_super() failure exit
2012-04-09 01:39:22 -04:00
locks.c
CIFS: Fix VFS lock usage for oplocked files
2012-04-01 13:54:27 -05:00
Makefile
fs: initial qnx6fs addition
2012-03-20 21:29:38 -04:00
mbcache.c
…
mount.h
vfs: keep list of mounts for each superblock
2012-01-06 23:20:12 -05:00
mpage.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
namei.c
vfs: make word-at-a-time accesses handle a non-existing page
2012-05-03 14:01:40 -07:00
namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-01-08 13:21:22 -08:00
no-block.c
…
open.c
Wrap accesses to the fd_sets in struct fdtable
2012-02-19 10:30:52 -08:00
pipe.c
pipes: add a "packetized pipe" mode for writing
2012-04-29 13:12:42 -07:00
pnode.c
vfs: switch pnode.h macros to struct mount *
2012-01-03 22:57:11 -05:00
pnode.h
vfs: switch pnode.h macros to struct mount *
2012-01-03 22:57:11 -05:00
posix_acl.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
proc_namespace.c
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
read_write.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
read_write.h
…
readdir.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
select.c
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 18:12:23 -07:00
seq_file.c
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
signalfd.c
epoll: ep_unregister_pollwait() can use the freed pwq->whead
2012-02-24 11:42:50 -08:00
splice.c
tcp: tcp_sendpages() should call tcp_push() once
2012-04-05 19:04:27 -04:00
stack.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
stat.c
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
statfs.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
super.c
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
sync.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
timerfd.c
…
utimes.c
…
xattr_acl.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
xattr.c
fs/xattr.c:setxattr(): improve handling of allocation failures
2012-04-05 15:25:50 -07:00