staging: android/lowmemorykiller: Do not kill kernel threads

LMK should not try killing kernel threads.

Suggested-by: Oleg Nesterov <[email protected]>
Reviewed-by: Oleg Nesterov <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
Acked-by: KOSAKI Motohiro <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index 6e800d35ebdaf7032233bb8bcb839700d66985d0..ae38c39a152500eee8f3729cdfe03ed7dfeeb57d 100644 (file)
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -138,6 +138,9 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
                struct task_struct *p;
                int oom_adj;
 
+               if (tsk->flags & PF_KTHREAD)
+                       continue;
+
                p = find_lock_task_mm(tsk);
                if (!p)
                        continue;