patch-2.2.19 linux/arch/alpha/kernel/irq.c

• Lines: 16
• Date: Sun Mar 25 11:37:29 2001
• Orig file: v2.2.18/arch/alpha/kernel/irq.c
• Orig date: Sun Mar 25 11:13:14 2001

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.18/arch/alpha/kernel/irq.c linux/arch/alpha/kernel/irq.c
@@ -385,6 +385,7 @@
 /* This protects BH software state (masks, things like that). */
 atomic_t global_bh_lock = ATOMIC_INIT(0);
 atomic_t global_bh_count = ATOMIC_INIT(0);
+spinlock_t alpha_bh_lock = SPIN_LOCK_UNLOCKED;
 
 static void *previous_irqholder = NULL;
 
@@ -650,6 +651,7 @@
 void
 synchronize_bh(void)
 {
+	mb();
 	if (atomic_read(&global_bh_count) && !in_interrupt())
 			wait_on_bh();
 }