tree 0c5a47808790e80a754b44aebe82c5c683811788
parent 7b98c2e402eaa1f2beec18b1bde17f74948a19db
author David Rientjes <rientjes@google.com> 1281399529 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1281411896 -0700

oom: avoid sending exiting tasks a SIGKILL

It's unnecessary to SIGKILL a task that is already PF_EXITING and can
actually cause a NULL pointer dereference of the sighand if it has already
been detached.  Instead, simply set TIF_MEMDIE so it has access to memory
reserves and can quickly exit as the comment implies.

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>