summaryrefslogtreecommitdiffstats
path: root/kernel/semaphore.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2013-05-04 18:34:13 -0700
committerDavid S. Miller <davem@davemloft.net>2013-05-04 18:34:13 -0700
commit048c9acca90ca7da42b92745445fe008a48add88 (patch)
treee2e551a565a7dcdca0fc398aa659231745e5a901 /kernel/semaphore.c
parent07df841877195765d958df146f614fc7bdedd5e3 (diff)
parentad348cc5349be4ef4abe08819afbb63386585413 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Merge sparc bug fixes that didn't make it into v3.9 into sparc-next. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/semaphore.c')
-rw-r--r--kernel/semaphore.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/semaphore.c b/kernel/semaphore.c
index 4567fc020fe..6815171a4ff 100644
--- a/kernel/semaphore.c
+++ b/kernel/semaphore.c
@@ -193,7 +193,7 @@ EXPORT_SYMBOL(up);
struct semaphore_waiter {
struct list_head list;
struct task_struct *task;
- int up;
+ bool up;
};
/*
@@ -209,12 +209,12 @@ static inline int __sched __down_common(struct semaphore *sem, long state,
list_add_tail(&waiter.list, &sem->wait_list);
waiter.task = task;
- waiter.up = 0;
+ waiter.up = false;
for (;;) {
if (signal_pending_state(state, task))
goto interrupted;
- if (timeout <= 0)
+ if (unlikely(timeout <= 0))
goto timed_out;
__set_task_state(task, state);
raw_spin_unlock_irq(&sem->lock);
@@ -258,6 +258,6 @@ static noinline void __sched __up(struct semaphore *sem)
struct semaphore_waiter *waiter = list_first_entry(&sem->wait_list,
struct semaphore_waiter, list);
list_del(&waiter->list);
- waiter->up = 1;
+ waiter->up = true;
wake_up_process(waiter->task);
}