Commit-ID: 1a55af2e45cce0ff13bc33c8ee99da84e188b615 Gitweb: http://git.kernel.org/tip/1a55af2e45cce0ff13bc33c8ee99da84e188b615 Author: Frederic Weisbecker <fweis...@gmail.com> AuthorDate: Fri, 12 Apr 2013 01:51:01 +0200 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Tue, 28 May 2013 09:40:25 +0200
sched: Update rq clock earlier in unthrottle_cfs_rq In this function we are making use of rq->clock right before the update of the rq clock, let's just call update_rq_clock() just before that to avoid using a stale rq clock value. Signed-off-by: Frederic Weisbecker <fweis...@gmail.com> Cc: Li Zhong <zh...@linux.vnet.ibm.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Paul Turner <p...@google.com> Cc: Mike Galbraith <efa...@gmx.de> Signed-off-by: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/1365724262-20142-5-git-send-email-fweis...@gmail.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- kernel/sched/fair.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index f76ca21..1c8762a 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2319,12 +2319,14 @@ void unthrottle_cfs_rq(struct cfs_rq *cfs_rq) se = cfs_rq->tg->se[cpu_of(rq_of(cfs_rq))]; cfs_rq->throttled = 0; + + update_rq_clock(rq); + raw_spin_lock(&cfs_b->lock); cfs_b->throttled_time += rq->clock - cfs_rq->throttled_clock; list_del_rcu(&cfs_rq->throttled_list); raw_spin_unlock(&cfs_b->lock); - update_rq_clock(rq); /* update hierarchical throttle state */ walk_tg_tree_from(cfs_rq->tg, tg_nop, tg_unthrottle_up, (void *)rq); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
