---

yaml --- r: 373746 b: refs/heads/master c: f7dd1ce h: refs/heads/master v: v3
git-mirror · May 7, 2013 · cbfdfa3 · cbfdfa3
1 parent edfa499
commit cbfdfa3
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Showing 2 changed files with 4 additions and 6 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e2d57f782c8a906f80d5b5f54da803c1638929d7
+refs/heads/master: f7dd1cee9a4e2b1450e4a3732636dfbf28562ee4
diff --git a/trunk/lib/rwsem.c b/trunk/lib/rwsem.c
@@ -188,14 +188,12 @@ rwsem_down_failed_common(struct rw_semaphore *sem,
 	struct task_struct *tsk = current;
 	signed long count;
 
-	set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-
 	/* set up my own style of waitqueue */
-	raw_spin_lock_irq(&sem->wait_lock);
 	waiter.task = tsk;
 	waiter.type = type;
 	get_task_struct(tsk);
 
+	raw_spin_lock_irq(&sem->wait_lock);
 	if (list_empty(&sem->wait_list))
 		adjustment += RWSEM_WAITING_BIAS;
 	list_add_tail(&waiter.list, &sem->wait_list);
@@ -218,7 +216,8 @@ rwsem_down_failed_common(struct rw_semaphore *sem,
 	raw_spin_unlock_irq(&sem->wait_lock);
 
 	/* wait to be given the lock */
-	for (;;) {
+	while (true) {
+		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
 		if (!waiter.task)
 			break;
 
@@ -231,7 +230,6 @@ rwsem_down_failed_common(struct rw_semaphore *sem,
 			}
 		raw_spin_unlock_irq(&sem->wait_lock);
 		schedule();
-		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
 	}
 
 	tsk->state = TASK_RUNNING;