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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 metag: tz1090: select and instantiate pinctrl-tz1090-pdc 2013-06-27 13:49:56 +01:00
configs metag: minimal TZ1090 (Comet) SoC infrastructure 2013-06-13 12:14:07 +01:00
include Metag architecture changes for v3.11 2013-07-06 12:39:39 -07:00
kernel Metag architecture changes for v3.11 2013-07-06 12:39:39 -07:00
lib metag: move EXPORT_SYMBOL(csum_partial) to metag_ksyms.c 2013-07-04 10:00:02 +01:00
mm mm: invoke oom-killer from remaining unconverted page fault handlers 2013-07-09 10:33:20 -07:00
oprofile metag: OProfile support 2013-03-15 13:21:05 +00:00
tbx
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
Kconfig.soc metag: tz1090: select and instantiate pinctrl-tz1090-pdc 2013-06-27 13:49:56 +01:00
Makefile metag: minimal TZ1090 (Comet) SoC infrastructure 2013-06-13 12:14:07 +01:00