Johannes Weiner e2ec2c2b96 arch: mm: pass userspace fault flag to generic fault handler ... commit 759496ba6407c6994d6a5ce3a5e74937d7816208 upstream. Unlike global OOM handling, memory cgroup code will invoke the OOM killer in any OOM situation because it has no way of telling faults occuring in kernel context - which could be handled more gracefully - from user-triggered faults. Pass a flag that identifies faults originating in user space from the architecture-specific fault handlers to generic code so that memcg OOM handling can be improved. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: azurIt <azurit@pobox.sk> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-11-21 09:22:56 -08:00
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boot	m32r: make memset() global for CONFIG_KERNEL_BZIP2=y	2012-07-17 16:21:30 -07:00
configs	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
include	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-05-01 14:08:52 -07:00
kernel	dump_stack: unify debug information printed by show_regs()	2013-04-30 17:04:02 -07:00
lib	m32r: export delay loop symbols	2009-10-04 12:02:36 +09:00
mm	arch: mm: pass userspace fault flag to generic fault handler	2014-11-21 09:22:56 -08:00
oprofile
platforms	Disintegrate asm/system.h for M32R	2012-03-28 18:30:02 +01:00
Kconfig	idle: Remove GENERIC_IDLE_LOOP config switch	2013-04-17 10:39:38 +02:00
Kconfig.debug	lib: consolidate DEBUG_STACK_USAGE option	2011-05-25 08:39:54 -07:00
Makefile	m32r: Use generic init_task	2012-05-05 13:00:23 +02:00