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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
..
alpha
arc mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
arm Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2013-07-07 11:11:43 -07:00
arm64
avr32
blackfin
c6x
cris
frv
h8300
hexagon
ia64
m32r
m68k
metag mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
microblaze
mips Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2013-07-07 11:11:43 -07:00
mn10300 mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
openrisc mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
parisc
powerpc
s390
score mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
sh
sparc
tile mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
um
unicore32
x86 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-06 14:09:38 -07:00
xtensa
.gitignore
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