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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-01-19 16:56:46 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-03-11 13:22:37 -0700
commitc8aead6a9b27fdd94b7bcb74b587ae012d8145f2 (patch)
tree89a8e040da6e361ab2fef199d78a3fd1a894bfed /kernel/rcu
parent78043c467a91573cc1d51827fe10d7d15ae79a60 (diff)
downloadlinux-c8aead6a9b27fdd94b7bcb74b587ae012d8145f2.tar.bz2
rcu: Simplify sync_rcu_preempt_exp_init()
This commit eliminates a boolean and associated "if" statement by rearranging the code. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/tree_plugin.h5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 0a571e9a0f1d..d37c9fbdba71 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -677,19 +677,16 @@ static void
sync_rcu_preempt_exp_init(struct rcu_state *rsp, struct rcu_node *rnp)
{
unsigned long flags;
- int must_wait = 0;
raw_spin_lock_irqsave(&rnp->lock, flags);
smp_mb__after_unlock_lock();
if (!rcu_preempt_has_tasks(rnp)) {
raw_spin_unlock_irqrestore(&rnp->lock, flags);
+ rcu_report_exp_rnp(rsp, rnp, false); /* No tasks, report. */
} else {
rnp->exp_tasks = rnp->blkd_tasks.next;
rcu_initiate_boost(rnp, flags); /* releases rnp->lock */
- must_wait = 1;
}
- if (!must_wait)
- rcu_report_exp_rnp(rsp, rnp, false); /* Don't wake self. */
}
/**