[PATCH] oom fix: prevent oom from killing a process with children/sibling unkillable

Looking at oom_kill.c, found that the intention to not kill the selected
process if any of its children/siblings has OOM_DISABLE set, is not being
met.
Signed-off-by: NAnkita Garg <ankita@in.ibm.com>
Acked-by: NNick Piggin <npiggin@suse.de>
Acked-by: NWilliam Irwin <wli@holomorphy.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

mm/oom_kill.c

@@ -320,7 +320,7 @@ static int oom_kill_task(struct task_struct *p)
 	 * Don't kill the process if any threads are set to OOM_DISABLE
 	 */
 	do_each_thread(g, q) {
-		if (q->mm == mm && p->oomkilladj == OOM_DISABLE)
+		if (q->mm == mm && q->oomkilladj == OOM_DISABLE)
 			return 1;
 	} while_each_thread(g, q);