From 2b8ca1a907d5fffc85fb648bbace28ddf3420825 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 10 May 2021 18:15:22 +0200 Subject: [PATCH] sched/core: Remove the pointless BUG_ON(!task) from wake_up_q() container_of() can never return NULL - so don't check for it pointlessly. [ mingo: Twiddled the changelog. ] Signed-off-by: Oleg Nesterov Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20210510161522.GA32644@redhat.com --- kernel/sched/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 5226cc26a095..61d1d85bb93d 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -585,7 +585,6 @@ void wake_up_q(struct wake_q_head *head) struct task_struct *task; task = container_of(node, struct task_struct, wake_q); - BUG_ON(!task); /* Task can safely be re-inserted now: */ node = node->next; task->wake_q.next = NULL;