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Johannes Weiner 609838cfed mm: invoke oom-killer from remaining unconverted page fault handlers 
A few remaining architectures directly kill the page faulting task in an
out of memory situation.  This is usually not a good idea since that
task might not even use a significant amount of memory and so may not be
the optimal victim to resolve the situation.

Since 2.6.29's 1c0fe6e ("mm: invoke oom-killer from page fault") there
is a hook that architecture page fault handlers are supposed to call to
invoke the OOM killer and let it pick the right task to kill.  Convert
the remaining architectures over to this hook.

To have the previous behavior of simply taking out the faulting task the
vm.oom_kill_allocating_task sysctl can be set to 1.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>   [arch/arc bits]
Cc: James Hogan <james.hogan@imgtec.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2013-07-09 10:33:20 -07:00
..
boot MN10300: And Panasonic AM34 subarch and implement SMP 2010-10-27 17:28:55 +01:00
configs cgroup: remove the ns_cgroup 2011-05-26 17:12:34 -07:00
include Merge branch 'sched-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-02 16:19:24 -07:00
kernel mn10300: Use early_param() to parse "mem=" parameter 2013-06-28 16:53:03 +01:00
lib Disintegrate asm/system.h for MN10300 2012-03-28 18:30:02 +01:00
mm mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
oprofile MN10300: Kill MN10300's own profiling Kconfig 2009-04-09 10:53:16 -07:00
proc-mn2ws0050 Disintegrate asm/system.h for MN10300 2012-03-28 18:30:02 +01:00
proc-mn103e010 MN10300: Create general kernel debugger cache flushing 2011-03-18 16:54:30 +00:00
unit-asb2303 mn10300: move setup_jiffies_interrupt() to cevt-mn10300.c 2012-07-11 16:04:41 -07:00
unit-asb2305 mn10300: don't bother with VM_IO 2013-06-29 12:46:38 +04:00
unit-asb2364 mn10300: move setup_jiffies_interrupt() to cevt-mn10300.c 2012-07-11 16:04:41 -07:00
Kconfig consolidate per-arch stack overflow debugging options 2013-07-04 11:25:39 -07:00
Kconfig.debug consolidate per-arch stack overflow debugging options 2013-07-04 11:25:39 -07:00
Makefile mn10300: only add -mmem-funcs to KBUILD_CFLAGS if gcc supports it 2012-10-06 03:04:36 +09:00