linux/arch/unicore32
Johannes Weiner e2ec2c2b96 arch: mm: pass userspace fault flag to generic fault handler
commit 759496ba64 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
..
boot Kbuild: centralize MKIMAGE and cmd_uimage definitions 2012-03-26 15:49:20 +02:00
configs unicore32: add KBUILD_DEFCONFIG with unicore32_defconfig (old debug_defconfig) 2011-06-09 16:24:42 +08:00
include Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
kernel unicore32: just use mmap_pgoff()... 2013-05-09 14:10:07 -04:00
lib unicore32: fix build error for find bitops 2011-11-15 17:13:14 +08:00
mm arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
.gitignore unicore32 core architecture: build infrastructure 2011-03-17 09:19:05 +08:00
Kconfig idle: Remove GENERIC_IDLE_LOOP config switch 2013-04-17 10:39:38 +02:00
Kconfig.debug unicore32: drop unused Kconfig symbols 2011-11-15 17:13:18 +08:00
Makefile unicore32: Use generic init_task 2012-05-05 13:00:26 +02:00