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@xiaomi.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/1625547043-28103-1-git-send-email-yehanxu1@gmail.com

diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 809b001..2cad15d 100644 (file)
--- 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);
 }
 
 /*