sched/core: Use the new llist_for_each_entry_safe() primitive (73215849) · Commits · 戴 / test

Now that we've added llist_for_each_entry_safe(), use it to simplify an open coded version of it in sched_ttwu_pending(). Signed-off-by:

Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <kernel-team@lge.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1494549584-11730-1-git-send-email-byungchul.park@lge.com Signed-off-by:

kernel/sched/core.c

+3 −12

Original line number	Diff line number	Diff line
		@@ -1731,7 +1731,7 @@ void sched_ttwu_pending(void)
		{
		struct rq *rq = this_rq();
		struct llist_node *llist = llist_del_all(&rq->wake_list);
		struct task_struct *p;
		struct task_struct p, t;
		struct rq_flags rf;

		if (!llist)
		@@ -1740,17 +1740,8 @@ void sched_ttwu_pending(void)
		rq_lock_irqsave(rq, &rf);
		update_rq_clock(rq);

		while (llist) {
		int wake_flags = 0;

		p = llist_entry(llist, struct task_struct, wake_entry);
		llist = llist_next(llist);

		if (p->sched_remote_wakeup)
		wake_flags = WF_MIGRATED;

		ttwu_do_activate(rq, p, wake_flags, &rf);
		}
		llist_for_each_entry_safe(p, t, llist, wake_entry)
		ttwu_do_activate(rq, p, p->sched_remote_wakeup ? WF_MIGRATED : 0, &rf);

		rq_unlock_irqrestore(rq, &rf);
		}