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Gleb Natapov 69e4747ee9 Unused iocbs in a batch should not be accounted as active. 
Since commit 080d676de0 ("aio: allocate kiocbs in batches") iocbs are
allocated in a batch during processing of first iocbs.  All iocbs in a
batch are automatically added to ctx->active_reqs list and accounted in
ctx->reqs_active.

If one (not the last one) of iocbs submitted by an user fails, further
iocbs are not processed, but they are still present in ctx->active_reqs
and accounted in ctx->reqs_active.  This causes process to stuck in a D
state in wait_for_all_aios() on exit since ctx->reqs_active will never
go down to zero.  Furthermore since kiocb_batch_free() frees iocb
without removing it from active_reqs list the list become corrupted
which may cause oops.

Fix this by removing iocb from ctx->active_reqs and updating
ctx->reqs_active in kiocb_batch_free().

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Cc: stable@kernel.org   # 3.2
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-13 20:39:44 -08:00
..
9p
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
2012-01-10 15:09:01 -08:00
adfs
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
affs
affs: propagate umode_t
2012-01-03 22:55:04 -05:00
afs
switch ->create() to umode_t
2012-01-03 22:54:53 -05:00
autofs4
autofs4 - fix deal with autofs4_write races
2012-01-13 08:30:49 -08:00
befs
vfs: fix the stupidity with i_dentry in inode destructors
2012-01-03 22:52:40 -05:00
bfs
switch ->create() to umode_t
2012-01-03 22:54:53 -05:00
btrfs
mm: compaction: introduce sync-light migration for use by compaction
2012-01-12 20:13:09 -08:00
cachefiles
fs: move code out of buffer.c
2012-01-03 22:54:07 -05:00
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2012-01-13 10:29:21 -08:00
cifs
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-01-08 12:19:57 -08:00
coda
coda: switch coda_cnode_make() to sane API as well, clean coda_lookup()
2012-01-10 11:13:16 -05:00
configfs
configfs: convert to umode_t
2012-01-03 22:54:57 -05:00
cramfs
Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into Z
2012-01-06 23:15:54 -05:00
debugfs
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-01-08 12:19:57 -08:00
devpts
devpts: fix double-free on mount failure
2012-01-08 20:19:03 -05:00
dlm
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
2012-01-10 14:55:55 -08:00
ecryptfs
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
efs
vfs: fix the stupidity with i_dentry in inode destructors
2012-01-03 22:52:40 -05:00
exofs
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
2012-01-09 12:51:01 -08:00
exportfs
…
ext2
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-01-09 12:51:21 -08:00
ext3
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-01-09 12:51:21 -08:00
ext4
Merge branch 'for_linus' into for_linus_merged
2012-01-10 11:54:07 -05:00
fat
Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2012-01-09 12:09:47 -08:00
freevxfs
fs: propagate umode_t, misc bits
2012-01-03 22:55:10 -05:00
fscache
…
fuse
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
2012-01-12 12:39:21 -08:00
gfs2
GFS2: Fix nlink setting on inode creation
2012-01-11 12:35:05 +00:00
hfs
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
hfsplus
hfsplus: creation of hidden dir on mount can fail
2012-01-10 17:48:52 -05:00
hostfs
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
hpfs
switch ->mknod() to umode_t
2012-01-03 22:54:54 -05:00
hppfs
vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_root
2012-01-03 22:52:41 -05:00
hugetlbfs
mm: compaction: introduce sync-light migration for use by compaction
2012-01-12 20:13:09 -08:00
isofs
isofs: inode leak on mount failure
2012-01-09 10:48:11 -05:00
jbd
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-01-09 12:51:21 -08:00
jbd2
Merge branch 'for_linus' into for_linus_merged
2012-01-10 11:54:07 -05:00
jffs2
Merge tag 'for-linus-3.3' of git://git.infradead.org/mtd-2.6
2012-01-10 13:45:22 -08:00
jfs
Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2012-01-08 13:10:57 -08:00
lockd
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
2012-01-06 23:16:53 -05:00
logfs
Merge tag 'for-linus-3.3' of git://git.infradead.org/mtd-2.6
2012-01-10 13:45:22 -08:00
minix
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-01-08 12:19:57 -08:00
ncpfs
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
nfs
mm: compaction: introduce sync-light migration for use by compaction
2012-01-12 20:13:09 -08:00
nfs_common
…
nfsd
Merge branch 'nfs-for-3.3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
2012-01-10 14:57:40 -08:00
nilfs2
Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2012-01-08 13:10:57 -08:00
nls
NLS: raname "maxlen" to "maxout" in UTF conversion routines
2011-11-26 19:58:47 -08:00
notify
vfs: move fsnotify junk to struct mount
2012-01-03 22:57:12 -05:00
ntfs
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
ocfs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
2012-01-10 14:55:55 -08:00
omfs
omfs: propagate umode_t
2012-01-03 22:55:01 -05:00
openpromfs
vfs: fix the stupidity with i_dentry in inode destructors
2012-01-03 22:52:40 -05:00
proc
c/r: procfs: add start_data, end_data, start_brk members to /proc/$pid/stat v4
2012-01-12 20:13:13 -08:00
pstore
pstore: gracefully handle NULL pstore_info functions
2011-11-18 13:49:00 -08:00
qnx4
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-01-08 13:21:22 -08:00
quota
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
2012-01-06 23:16:53 -05:00
ramfs
pohmelfs: propagate umode_t
2012-01-03 22:55:07 -05:00
reiserfs
reiserfs: don't lock root inode searching
2012-01-10 16:30:54 -08:00
romfs
Merge tag 'for-linus-3.3' of git://git.infradead.org/mtd-2.6
2012-01-10 13:45:22 -08:00
squashfs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next
2012-01-13 10:34:57 -08:00
sysfs
sysfs: propagate umode_t
2012-01-03 22:55:03 -05:00
sysv
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
2012-01-06 23:16:53 -05:00
ubifs
Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
2012-01-13 10:31:33 -08:00
udf
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-01-09 12:51:21 -08:00
ufs
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
xfs
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
2012-01-09 12:50:15 -08:00
aio.c
Unused iocbs in a batch should not be accounted as active.
2012-01-13 20:39:44 -08:00
anon_inodes.c
…
attr.c
switch is_sxid() to umode_t
2012-01-03 22:55:11 -05:00
bad_inode.c
switch ->mknod() to umode_t
2012-01-03 22:54:54 -05:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
fs: binfmt_elf: create Kconfig variable for PIE randomization
2012-01-10 16:30:51 -08:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
2012-01-06 23:16:53 -05:00
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
…
bio.c
…
block_dev.c
vfs: cache request_queue in struct block_device
2012-01-12 20:13:12 -08:00
buffer.c
fs: move code out of buffer.c
2012-01-03 22:54:07 -05:00
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
vfs: fix up ENOIOCTLCMD error handling
2012-01-05 15:40:12 -08:00
compat.c
switch open and mkdir syscalls to umode_t
2012-01-03 22:55:19 -05:00
dcache.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2012-01-13 10:29:21 -08:00
dcookies.c
…
direct-io.c
dio: optimize cache misses in the submission path
2012-01-12 20:13:12 -08:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
epoll: limit paths
2012-01-12 20:13:04 -08:00
exec.c
tracepoint: add tracepoints for debugging oom_score_adj
2012-01-10 16:30:44 -08:00
fcntl.c
…
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: prevent remount read-only if pending removes
2012-01-06 23:20:13 -05:00
file.c
…
filesystems.c
vfs: convert fs_supers to hlist
2012-01-03 22:52:39 -05:00
fs_struct.c
…
fs-writeback.c
Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
2012-01-10 16:59:59 -08:00
generic_acl.c
…
inode.c
mm: account reaped page cache on inode cache pruning
2012-01-10 16:30:42 -08:00
internal.h
vfs: protect remounting superblock read-only
2012-01-06 23:20:12 -05:00
ioctl.c
vfs: fix up ENOIOCTLCMD error handling
2012-01-05 15:40:12 -08:00
ioprio.c
…
Kconfig
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
2012-01-09 12:51:01 -08:00
Kconfig.binfmt
fs: binfmt_elf: create Kconfig variable for PIE randomization
2012-01-10 16:30:51 -08:00
libfs.c
fs: move code out of buffer.c
2012-01-03 22:54:07 -05:00
locks.c
vfs: fix handling of lock allocation failure in lease-break case
2011-12-26 10:25:26 -08:00
Makefile
Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into Z
2012-01-06 23:15:54 -05:00
mbcache.c
…
mount.h
vfs: keep list of mounts for each superblock
2012-01-06 23:20:12 -05:00
mpage.c
…
namei.c
Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into Z
2012-01-06 23:15:54 -05:00
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
switch security_path_chmod() to struct path *
2012-01-06 23:16:53 -05:00
pipe.c
pipe: fail cleanly when root tries F_SETPIPE_SZ with big size
2012-01-12 20:13:04 -08:00
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
…
proc_namespace.c
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
read_write.c
…
read_write.h
…
readdir.c
…
select.c
…
seq_file.c
constify seq_file stuff
2012-01-03 22:52:40 -05:00
signalfd.c
…
splice.c
fs: move code out of buffer.c
2012-01-03 22:54:07 -05:00
stack.c
…
stat.c
…
statfs.c
vfs: new helper - vfs_ustat()
2012-01-03 22:53:07 -05:00
super.c
vfs: prevent remount read-only if pending removes
2012-01-06 23:20:13 -05:00
sync.c
fs: move code out of buffer.c
2012-01-03 22:54:07 -05:00
timerfd.c
…
utimes.c
…
xattr_acl.c
…
xattr.c
vfs: mnt_drop_write_file()
2012-01-03 22:52:40 -05:00