Commit-ID: 73215849dfbf63421c1cafea5a1b6da9bb17831e
Gitweb: http://git.kernel.org/tip/73215849dfbf63421c1cafea5a1b6da9bb17831e
Author: Byungchul Park <byungchul.park@xxxxxxx>
AuthorDate: Fri, 12 May 2017 09:39:44 +0900
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 23 May 2017 10:01:33 +0200
sched/core: Use the new llist_for_each_entry_safe() primitive
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: Byungchul Park <byungchul.park@xxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: <kernel-team@xxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1494549584-11730-1-git-send-email-byungchul.park@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/sched/core.c | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index dde5d1e..4a31239 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -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);
}
--
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