Commit-ID: 2a46dae38087e62dd5fb08a6dadf1407717ed13c
Gitweb: http://git.kernel.org/tip/2a46dae38087e62dd5fb08a6dadf1407717ed13c
Author: Nikunj A. Dadhania <nikunj@xxxxxxxxxxxxxxxxxx>
AuthorDate: Tue, 7 Jun 2011 15:43:22 +0530
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 1 Jul 2011 10:39:06 +0200
sched: Remove rcu_read_lock() from wake_affine()
wake_affine() is only called from one path: 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>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20110607101251.777.34547.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
kernel/sched_fair.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 433491c..eb98f77 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1481,7 +1481,6 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
* effect of the currently running task from the load
* of the current CPU:
*/
- rcu_read_lock();
if (sync) {
tg = task_group(current);
weight = current->se.load.weight;
@@ -1517,7 +1516,6 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
balanced = this_eff_load <= prev_eff_load;
} else
balanced = true;
- rcu_read_unlock();
/*
* If the currently running task will sleep within
--
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