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Naoya Horiguchi 7a71932d56 kpageflags: fix wrong KPF_THP on non-huge compound pages 
KPF_THP can be set on non-huge compound pages (like slab pages or pages
allocated by drivers with __GFP_COMP) because PageTransCompound only
checks PG_head and PG_tail.  Obviously this is a bug and breaks user space
applications which look for thp via /proc/kpageflags.

This patch rules out setting KPF_THP wrongly by additionally checking
PageLRU on the head pages.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:23:00 +09:00
..
9p
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
adfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
affs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
afs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
autofs4
make get_file() return its argument
2012-09-26 21:10:25 -04:00
befs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
bfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
btrfs
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
cachefiles
…
ceph
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
cifs
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
coda
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
configfs
userns: Convert configfs to use kuid and kgid where appropriate
2012-09-18 01:01:37 -07:00
cramfs
userns: Convert cramfs to use kuid/kgid where appropriate
2012-09-21 03:13:08 -07:00
debugfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-10-02 11:11:09 -07:00
devpts
…
dlm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-10-02 13:38:27 -07:00
ecryptfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
efs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
exofs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
exportfs
…
ext2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
ext3
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-10-04 09:14:01 -07:00
ext4
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
fat
fat: simplify writeback_inode()
2012-10-06 03:05:12 +09:00
freevxfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
fscache
…
fuse
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
gfs2
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
hfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
hfsplus
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
hostfs
userns: Convert hostfs to use kuid and kgid where appropriate
2012-09-21 03:13:23 -07:00
hpfs
hpfs: convert to use leXX_add_cpu()
2012-10-06 03:05:08 +09:00
hppfs
…
hugetlbfs
mm: replace vma prio_tree with an interval tree
2012-10-09 16:22:39 +09:00
isofs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
jbd
jbd: Fix assertion failure in commit code due to lacking transaction credits
2012-09-12 15:52:03 +02:00
jbd2
The big new feature added this time is supporting online resizing
2012-10-08 06:36:39 +09:00
jffs2
rbtree: move some implementation details from rbtree.h to rbtree.c
2012-10-09 16:22:32 +09:00
jfs
JFS TRIM support and some minor fixes
2012-10-03 08:48:21 -07:00
lockd
close the race in nlmsvc_free_block()
2012-09-22 20:48:20 -04:00
logfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
minix
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
ncpfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
nfs
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
nfs_common
…
nfsd
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
nilfs2
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
nls
…
notify
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
ntfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
ocfs2
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
omfs
omfs: convert to use beXX_add_cpu()
2012-10-06 03:05:31 +09:00
openpromfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
proc
kpageflags: fix wrong KPF_THP on non-huge compound pages
2012-10-09 16:23:00 +09:00
pstore
pstore: Avoid recursive spinlocks in the oops_in_progress case
2012-09-20 17:04:50 -07:00
qnx4
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
qnx6
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
quota
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-10-02 11:11:09 -07:00
ramfs
…
reiserfs
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-10-04 09:14:01 -07:00
romfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
squashfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
sysfs
sysfs: Fix comment typo "sysf_create_link".
2012-09-04 16:11:31 -07:00
sysv
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
ubifs
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
udf
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-10-04 09:14:01 -07:00
ufs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
xfs
mm: kill vma flag VM_CAN_NONLINEAR
2012-10-09 16:22:17 +09:00
aio.c
…
anon_inodes.c
…
attr.c
ima: add inode_post_setattr call
2012-09-07 14:57:46 -04:00
bad_inode.c
…
binfmt_aout.c
coredump: pass siginfo_t* to do_coredump() and below, not merely signr
2012-10-06 03:05:16 +09:00
binfmt_elf_fdpic.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
binfmt_elf.c
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
binfmt_em86.c
…
binfmt_flat.c
coredump: pass siginfo_t* to do_coredump() and below, not merely signr
2012-10-06 03:05:16 +09:00
binfmt_misc.c
…
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
…
bio.c
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2012-08-25 11:36:43 -07:00
block_dev.c
…
buffer.c
The big new feature added this time is supporting online resizing
2012-10-08 06:36:39 +09:00
char_dev.c
…
compat_binfmt_elf.c
coredump: extend core dump note section to contain file names of mapped files
2012-10-06 03:05:17 +09:00
compat_ioctl.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
compat.c
compat: fs: Generic compat_sys_sendfile implementation
2012-10-02 21:35:55 -04:00
coredump.c
coredump: pass siginfo_t* to do_coredump() and below, not merely signr
2012-10-06 03:05:16 +09:00
coredump.h
coredump: update coredump-related headers
2012-10-06 03:05:15 +09:00
dcache.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
dcookies.c
…
direct-io.c
…
drop_caches.c
…
eventfd.c
…
eventpoll.c
epoll: support for disabling items, and a self-test app
2012-10-06 03:05:00 +09:00
exec.c
mm: avoid taking rmap locks in move_ptes()
2012-10-09 16:22:42 +09:00
fcntl.c
fcntl: fix misannotations
2012-09-26 22:20:20 -04:00
fhandle.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
fifo.c
…
file_table.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2012-10-02 21:38:48 -07:00
file.c
export fget_light
2012-09-26 21:10:06 -04:00
filesystems.c
…
fs_struct.c
…
fs-writeback.c
fs/fs-writeback.c: remove unneccesary parameter of __writeback_single_inode()
2012-10-09 16:23:00 +09:00
generic_acl.c
userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr
2012-09-18 01:01:35 -07:00
inode.c
mm: replace vma prio_tree with an interval tree
2012-10-09 16:22:39 +09:00
internal.h
…
ioctl.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
ioprio.c
…
Kconfig
…
Kconfig.binfmt
coredump: make core dump functionality optional
2012-10-06 03:05:15 +09:00
libfs.c
vfs: fix kerneldoc for generic_fh_to_parent()
2012-09-05 10:59:30 +02:00
locks.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
Makefile
coredump: make core dump functionality optional
2012-10-06 03:05:15 +09:00
mbcache.c
…
mount.h
…
mpage.c
…
namei.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
namespace.c
do_add_mount()/umount -l races
2012-09-22 20:48:18 -04:00
no-block.c
…
open.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
pipe.c
pipe(2) - race-free error recovery
2012-09-26 21:08:52 -04:00
pnode.c
…
pnode.h
…
posix_acl.c
userns: Convert vfs posix_acl support to use kuids and kgids
2012-09-18 01:01:35 -07:00
proc_namespace.c
…
read_write.c
compat: fs: Generic compat_sys_sendfile implementation
2012-10-02 21:35:55 -04:00
read_write.h
compat: fs: Generic compat_sys_sendfile implementation
2012-10-02 21:35:55 -04:00
readdir.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
select.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
seq_file.c
…
signalfd.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
splice.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
stack.c
…
stat.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
statfs.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
super.c
idr: rename MAX_LEVEL to MAX_IDR_LEVEL
2012-10-06 03:04:56 +09:00
sync.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
timerfd.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
utimes.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
xattr_acl.c
userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr
2012-09-18 01:01:35 -07:00
xattr.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2012-10-02 21:38:48 -07:00