[PATCH 2/3] locking/rwsem: Remove a few useless comments
From: Davidlohr Bueso
Date: Fri Aug 05 2016 - 04:07:01 EST
Our rwsem code (xadd, at least) is rather well documented, but
there are a few really annoying comments in there that serve
no purpose and we shouldn't bother with them.
Signed-off-by: Davidlohr Bueso <dbueso@xxxxxxx>
---
kernel/locking/rwsem-xadd.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index b03623172277..e02fe3289b5a 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -234,7 +234,6 @@ struct rw_semaphore __sched *rwsem_down_read_failed(struct rw_semaphore *sem)
struct task_struct *tsk = current;
WAKE_Q(wake_q);
- /* set up my own style of waitqueue */
waiter.task = tsk;
waiter.type = RWSEM_WAITING_FOR_READ;
@@ -613,7 +612,6 @@ struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
raw_spin_lock_irqsave(&sem->wait_lock, flags);
locked:
- /* do nothing if list empty */
if (!list_empty(&sem->wait_list))
__rwsem_mark_wake(sem, RWSEM_WAKE_ANY, &wake_q);
@@ -637,7 +635,6 @@ struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem)
raw_spin_lock_irqsave(&sem->wait_lock, flags);
- /* do nothing if list empty */
if (!list_empty(&sem->wait_list))
__rwsem_mark_wake(sem, RWSEM_WAKE_READ_OWNED, &wake_q);
--
2.6.6