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| author | Nikunj A. Dadhania <nikunj@linux.vnet.ibm.com> | 2011-06-07 12:13:22 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-07-01 10:39:06 +0200 |
| commit | 2a46dae38087e62dd5fb08a6dadf1407717ed13c (patch) | |
| tree | 1840acef6c5003aee8744b64fec3a13002ba0abd /kernel/sched_fair.c | |
| parent | Merge commit 'v3.0-rc5' into sched/core (diff) | |
| download | linux-2a46dae38087e62dd5fb08a6dadf1407717ed13c.tar.xz linux-2a46dae38087e62dd5fb08a6dadf1407717ed13c.zip | |
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@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20110607101251.777.34547.stgit@IBM-009124035060.in.ibm.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | 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 433491c2dc8f..eb98f77b38ef 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 |