linux-kernel - [tip: locking/core] locking/rwsem: Remove an unused parameter of rwsem

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Message-ID: <162739432696.395.7214705950514731382.tip-bot2@tip-bot2>
Date:   Tue, 27 Jul 2021 13:58:46 -0000
From:   "tip-bot2 for xuyehan" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     xuyehan <xuyehan@...omi.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Waiman Long <longman@...hat.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: locking/core] locking/rwsem: Remove an unused parameter of rwsem_wake()

The following commit has been merged into the locking/core branch of tip:

Commit-ID:     d4e5076c3522658996dbb050aa6c708bd2c1a3c1
Gitweb:        https://git.kernel.org/tip/d4e5076c3522658996dbb050aa6c708bd2c1a3c1
Author:        xuyehan <xuyehan@...omi.com>
AuthorDate:    Tue, 06 Jul 2021 12:50:43 +08:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Fri, 16 Jul 2021 18:46:44 +02:00

locking/rwsem: Remove an unused parameter of rwsem_wake()

The 2nd parameter 'count' is not used in this function.
The places where the function is called are also modified.

Signed-off-by: xuyehan <xuyehan@...omi.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Acked-by: Waiman Long <longman@...hat.com>
Link: https://lore.kernel.org/r/1625547043-28103-1-git-send-email-yehanxu1@gmail.com
---
 kernel/locking/rwsem.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 809b001..2cad15d 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -1165,7 +1165,7 @@ out_nolock:
  * handle waking up a waiter on the semaphore
  * - up_read/up_write has decremented the active part of count if we come here
  */
-static struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem, long count)
+static struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
 {
 	unsigned long flags;
 	DEFINE_WAKE_Q(wake_q);
@@ -1297,7 +1297,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 	if (unlikely((tmp & (RWSEM_LOCK_MASK|RWSEM_FLAG_WAITERS)) ==
 		      RWSEM_FLAG_WAITERS)) {
 		clear_nonspinnable(sem);
-		rwsem_wake(sem, tmp);
+		rwsem_wake(sem);
 	}
 }
 
@@ -1319,7 +1319,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 	rwsem_clear_owner(sem);
 	tmp = atomic_long_fetch_add_release(-RWSEM_WRITER_LOCKED, &sem->count);
 	if (unlikely(tmp & RWSEM_FLAG_WAITERS))
-		rwsem_wake(sem, tmp);
+		rwsem_wake(sem);
 }
 
 /*