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

..

array.c

c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat

2012-05-31 17:49:32 -07:00

base.c

oom: remove deprecated oom_adj

2012-10-09 16:22:24 +09:00

cmdline.c

proc: switch /proc/cmdline to seq_file

2008-10-23 14:29:04 +04:00

consoles.c

console: rename acquire/release_console_sem() to console_lock/unlock()

2011-01-26 10:50:06 +10:00

cpuinfo.c

proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c

2008-10-23 15:05:11 +04:00

devices.c

proc: use seq_puts()/seq_putc() where possible

2011-01-13 08:03:16 -08:00

fd.c

don't leak O_CLOEXEC into ->f_flags

2012-09-26 21:10:01 -04:00

fd.h

procfs: Move /proc/pid/fd[info] handling code to fd.[ch]

2012-09-26 21:10:01 -04:00

generic.c

proc: use kzalloc instead of kmalloc and memset

2012-10-06 03:05:18 +09:00

inode.c

proc: no need to initialize proc_inode->fd in proc_get_inode()

2012-10-06 03:05:18 +09:00

internal.h

coredump: use SUID_DUMPABLE_ENABLED rather than hardcoded 1

2012-10-06 03:05:16 +09:00

interrupts.c

proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c

2008-10-23 15:15:46 +04:00

Kconfig

kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT

2011-01-20 17:02:05 -08:00

kcore.c

fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static

2012-03-23 16:58:42 -07:00

kmsg.c

procfs: Use generic_file_llseek in /proc/kmsg

2010-04-09 16:35:41 +02:00

loadavg.c

sched, timers: cleanup avenrun users

2009-05-15 15:32:45 +02:00

Makefile

procfs: Move /proc/pid/fd[info] handling code to fd.[ch]

2012-09-26 21:10:01 -04:00

meminfo.c

fs/proc/meminfo.c: fix compilation error

2011-12-09 07:50:28 -08:00

mmu.c

fs/proc/mmu.c: headers butchery

2007-10-17 08:42:48 -07:00

namespaces.c

stop passing nameidata to ->lookup()

2012-07-14 16:34:32 +04:00

nommu.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

page.c

kpageflags: fix wrong KPF_THP on non-huge compound pages

2012-10-09 16:23:00 +09:00

proc_devtree.c

of: Improve prom_update_property() function

2012-07-11 15:26:51 +10:00

proc_net.c

stop passing nameidata to ->lookup()

2012-07-14 16:34:32 +04:00

proc_sysctl.c

rbtree: fix incorrect rbtree node insertion in fs/proc/proc_sysctl.c

2012-10-09 16:22:32 +09:00

proc_tty.c

proc: use seq_puts()/seq_putc() where possible

2011-01-13 08:03:16 -08:00

root.c

fs/proc/root.c: use NULL instead of 0 for pointer

2012-10-06 03:05:19 +09:00

softirqs.c

proc: use seq_puts()/seq_putc() where possible

2011-01-13 08:03:16 -08:00

stat.c

proc: stats: Use arch_idle_time for idle and iowait times if available

2012-03-30 15:43:33 +02:00

task_mmu.c

mm: kill vma flag VM_RESERVED and mm->reserved_vm counter

2012-10-09 16:22:19 +09:00

task_nommu.c

proc: remove mm_for_maps()

2012-05-31 17:49:28 -07:00

uptime.c

Merge branch 'sched/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into cputime-tip

2011-12-19 19:23:15 +01:00

version.c

proc: switch /proc/version to seq_file

2008-10-23 14:19:58 +04:00

vmcore.c

fadump: Introduce cleanup routine to invalidate /proc/vmcore.

2012-02-23 10:50:02 +11:00