diff options
Diffstat (limited to 'kernel/locking/rwsem-spinlock.c')
-rw-r--r-- | kernel/locking/rwsem-spinlock.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c index 1591f6b3539f..5eacab880f67 100644 --- a/kernel/locking/rwsem-spinlock.c +++ b/kernel/locking/rwsem-spinlock.c @@ -128,7 +128,6 @@ __rwsem_wake_one_writer(struct rw_semaphore *sem) void __sched __down_read(struct rw_semaphore *sem) { struct rwsem_waiter waiter; - struct task_struct *tsk; unsigned long flags; raw_spin_lock_irqsave(&sem->wait_lock, flags); @@ -140,13 +139,12 @@ void __sched __down_read(struct rw_semaphore *sem) goto out; } - tsk = current; - set_task_state(tsk, TASK_UNINTERRUPTIBLE); + set_current_state(TASK_UNINTERRUPTIBLE); /* set up my own style of waitqueue */ - waiter.task = tsk; + waiter.task = current; waiter.type = RWSEM_WAITING_FOR_READ; - get_task_struct(tsk); + get_task_struct(current); list_add_tail(&waiter.list, &sem->wait_list); @@ -158,10 +156,10 @@ void __sched __down_read(struct rw_semaphore *sem) if (!waiter.task) break; schedule(); - set_task_state(tsk, TASK_UNINTERRUPTIBLE); + set_current_state(TASK_UNINTERRUPTIBLE); } - __set_task_state(tsk, TASK_RUNNING); + __set_current_state(TASK_RUNNING); out: ; } @@ -194,15 +192,13 @@ int __down_read_trylock(struct rw_semaphore *sem) int __sched __down_write_common(struct rw_semaphore *sem, int state) { struct rwsem_waiter waiter; - struct task_struct *tsk; unsigned long flags; int ret = 0; raw_spin_lock_irqsave(&sem->wait_lock, flags); /* set up my own style of waitqueue */ - tsk = current; - waiter.task = tsk; + waiter.task = current; waiter.type = RWSEM_WAITING_FOR_WRITE; list_add_tail(&waiter.list, &sem->wait_list); @@ -220,7 +216,7 @@ int __sched __down_write_common(struct rw_semaphore *sem, int state) ret = -EINTR; goto out; } - set_task_state(tsk, state); + set_current_state(state); raw_spin_unlock_irqrestore(&sem->wait_lock, flags); schedule(); raw_spin_lock_irqsave(&sem->wait_lock, flags); |