Commit-ID: 62f6536a630affe3176deb48554d27ee58b65077
Gitweb: http://git.kernel.org/tip/62f6536a630affe3176deb48554d27ee58b65077
Author: Nikunj A. Dadhania <nikunj@xxxxxxxxxxxxxxxxxx>
AuthorDate: Fri, 17 Feb 2012 08:34:30 +0530
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Wed, 22 Feb 2012 12:28:28 +0100
sched: Remove rcu_read_lock/unlock() from select_idle_sibling()
select_idle_sibling() is called from select_task_rq_fair(), which
already has the RCU read lock held.
Signed-off-by: Nikunj A. Dadhania <nikunj@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/20120217030409.11748.12491.stgit@abhimanyu
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
kernel/sched/fair.c | 4 ----
1 files changed, 0 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4ab60a2..6ce9992 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2670,8 +2670,6 @@ static int select_idle_sibling(struct task_struct *p, int target)
/*
* Otherwise, iterate the domains and find an elegible idle cpu.
*/
- rcu_read_lock();
-
sd = rcu_dereference(per_cpu(sd_llc, target));
for_each_lower_domain(sd) {
sg = sd->groups;
@@ -2693,8 +2691,6 @@ next:
} while (sg != sd->groups);
}
done:
- rcu_read_unlock();
-
return target;
}
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|