patch-2.3.48 linux/arch/i386/kernel/semaphore.c

• Lines: 20
• Date: Fri Feb 25 16:35:28 2000
• Orig file: v2.3.47/linux/arch/i386/kernel/semaphore.c
• Orig date: Tue Dec 7 09:32:40 1999

diff -u --recursive --new-file v2.3.47/linux/arch/i386/kernel/semaphore.c linux/arch/i386/kernel/semaphore.c
@@ -150,8 +150,9 @@
 int __down_trylock(struct semaphore * sem)
 {
 	int sleepers;
+	unsigned long flags;
 
-	spin_lock_irq(&semaphore_lock);
+	spin_lock_irqsave(&semaphore_lock, flags);
 	sleepers = sem->sleepers + 1;
 	sem->sleepers = 0;
 
@@ -162,7 +163,7 @@
 	if (!atomic_add_negative(sleepers, &sem->count))
 		wake_up(&sem->wait);
 
-	spin_unlock_irq(&semaphore_lock);
+	spin_unlock_irqrestore(&semaphore_lock, flags);
 	return 1;
 }