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linux/fs/proc
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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
..
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
consoles.c
cpuinfo.c
devices.c
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
Kconfig
kcore.c fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static 2012-03-23 16:58:42 -07:00
kmsg.c
loadavg.c
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
namespaces.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
nommu.c
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
root.c fs/proc/root.c: use NULL instead of 0 for pointer 2012-10-06 03:05:19 +09:00
softirqs.c
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
vmcore.c fadump: Introduce cleanup routine to invalidate /proc/vmcore. 2012-02-23 10:50:02 +11:00