[PATCH 1/1] mm/oom_kill.c: simpilfy rcu call with guard(rcu)

[Maninder Singh <maninder1.s@samsung.com>]

guard(rcu)() simplifies code readability and there is
no need of extra goto labels.

Thus replacing rcu_read_lock/unlock with guard(rcu)().

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
---
 mm/oom_kill.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 5c6c95c169ee..9e3e88c06ead 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -135,19 +135,16 @@ struct task_struct *find_lock_task_mm(struct task_struct *p)
 {
 	struct task_struct *t;
 
-	rcu_read_lock();
+	guard(rcu)();
 
 	for_each_thread(p, t) {
 		task_lock(t);
 		if (likely(t->mm))
-			goto found;
+			return t;
 		task_unlock(t);
 	}
-	t = NULL;
-found:
-	rcu_read_unlock();
 
-	return t;
+	return NULL;
 }
 
 /*
-- 
2.34.1