Commit-ID: 71b1da46ff70309a2ec12ce943aa0d192d2c8f0c
Gitweb: http://git.kernel.org/tip/71b1da46ff70309a2ec12ce943aa0d192d2c8f0c
Author: Frederic Weisbecker <[email protected]>
AuthorDate: Fri, 12 Apr 2013 01:50:59 +0200
Committer: Ingo Molnar <[email protected]>
CommitDate: Tue, 28 May 2013 09:40:23 +0200
sched: Update rq clock before setting fair group shares
Because we may update the execution time in
sched_group_set_shares()->update_cfs_shares()->reweight_entity()->update_curr()
before reweighting the entity while setting the group shares and this requires
an uptodate version of the runqueue clock.
Signed-off-by: Frederic Weisbecker <[email protected]>
Cc: Li Zhong <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Paul Turner <[email protected]>
Cc: Mike Galbraith <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link:
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
kernel/sched/fair.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f62b16d..f76ca21 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6107,6 +6107,9 @@ int sched_group_set_shares(struct task_group *tg,
unsigned long shares)
se = tg->se[i];
/* Propagate contribution to hierarchy */
raw_spin_lock_irqsave(&rq->lock, flags);
+
+ /* Possible calls to update_curr() need rq clock */
+ update_rq_clock(rq);
for_each_sched_entity(se)
update_cfs_shares(group_cfs_rq(se));
raw_spin_unlock_irqrestore(&rq->lock, flags);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
