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. ]

Oleg Nesterov committed 5 years ago

Commit 2b8ca1a1 parent 02dbb721 file · +0 −1Browse files

Showing the changes to kernel (1 of 1 file). Show all

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@@ -585,7 +585,6 @@ void wake_up_q(struct wake_q_head *head) · 584 unmodified lines
585	struct task_struct *task;	585	struct task_struct *task;
586		586
587	task = container_of(node, struct task_struct, wake_q);	587	task = container_of(node, struct task_struct, wake_q);
588	BUG_ON(!task);
589	/* Task can safely be re-inserted now: */	588	/* Task can safely be re-inserted now: */
590	node = node->next;	589	node = node->next;
591	task->wake_q.next = NULL;	590	task->wake_q.next = NULL;

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