tree e05f9760a40c2560e500762b13ef81b37f153b9d
parent 5f40d4209461f23a15d88c6b55993bb8b0fa2670
author Oleg Nesterov <oleg@redhat.com> 1300129530 +0100
committer Linus Torvalds <torvalds@linux-foundation.org> 1300135115 -0700

oom: oom_kill_process: fix the child_points logic

oom_kill_process() starts with victim_points == 0.  This means that
(most likely) any child has more points and can be killed erroneously.

Also, "children has a different mm" doesn't match the reality, we should
check child->mm != t->mm.  This check is not exactly correct if t->mm ==
NULL but this doesn't really matter, oom_kill_task() will kill them
anyway.

Note: "Kill all processes sharing p->mm" in oom_kill_task() is wrong
too.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>