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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-01-19 16:56:46 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-03-11 13:22:37 -0700 |
| commit | c8aead6a9b27fdd94b7bcb74b587ae012d8145f2 (patch) | |
| tree | 89a8e040da6e361ab2fef199d78a3fd1a894bfed | |
| parent | 78043c467a91573cc1d51827fe10d7d15ae79a60 (diff) | |
| download | op-kernel-dev-c8aead6a9b27fdd94b7bcb74b587ae012d8145f2.zip op-kernel-dev-c8aead6a9b27fdd94b7bcb74b587ae012d8145f2.tar.gz | |
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>
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 0a571e9..d37c9fb 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. */ } /** |
