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| author | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-11-07 22:53:34 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-12-01 21:38:48 +0100 |
| commit | e3e740544173ef0dd8bffbf158182a7748e6c678 (patch) | |
| tree | eb7ac285649fd194b5fe831270e9cc85a5f6acf9 /include | |
| parent | net/bridge: Replace call_rcu_bh() and rcu_barrier_bh() (diff) | |
| download | linux-e3e740544173ef0dd8bffbf158182a7748e6c678.tar.xz linux-e3e740544173ef0dd8bffbf158182a7748e6c678.zip | |
percpu-rwsem: Replace synchronize_sched() with synchronize_rcu()
Now that synchronize_rcu() waits for preempt-disable regions of code
as well as RCU read-side critical sections, synchronize_sched() can be
replaced by synchronize_rcu(). This commit therefore makes this change,
even though it is but a comment.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Acked-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/percpu-rwsem.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h index 79b99d653e03..71b75643c432 100644 --- a/include/linux/percpu-rwsem.h +++ b/include/linux/percpu-rwsem.h @@ -41,7 +41,7 @@ static inline void percpu_down_read_preempt_disable(struct percpu_rw_semaphore * * cannot both change sem->state from readers_fast and start checking * counters while we are here. So if we see !sem->state, we know that * the writer won't be checking until we're past the preempt_enable() - * and that one the synchronize_sched() is done, the writer will see + * and that once the synchronize_rcu() is done, the writer will see * anything we did within this RCU-sched read-size critical section. */ __this_cpu_inc(*sem->read_count); |