From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Tue, 10 Aug 2010 00:19:39 +0000 (-0700)
Subject: oom: remove child->mm check from oom_kill_process()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=19b4586cd9c8ed642798902e55c6f61ed576ad93;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

oom: remove child->mm check from oom_kill_process()

The current "child->mm == p->mm" check prevents selection of vfork()ed
task.  But we don't have any reason to don't consider vfork().

Removed.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 342d4333f71..942861bf917 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -479,9 +479,6 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
 		list_for_each_entry(child, &t->children, sibling) {
 			unsigned long child_points;
 
-			if (child->mm == p->mm)
-				continue;
-
 			/* badness() returns 0 if the thread is unkillable */
 			child_points = badness(child, mem, nodemask,
 					       uptime.tv_sec);