X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fspinlock.c;h=d1b810782bc4e1b643faac72733074e2dc492fa4;hb=beb07c1a56e2cff3842e22c473bd1aaaea08e532;hp=0375fcd5921df5fe390ec6a3f1c1ce402d240f80;hpb=38a9a621aba953ddb8051547e98c10ec3c741312;p=linux-2.6

diff --git a/kernel/spinlock.c b/kernel/spinlock.c
index 0375fcd592..d1b810782b 100644
--- a/kernel/spinlock.c
+++ b/kernel/spinlock.c
@@ -179,16 +179,16 @@ EXPORT_SYMBOL(_write_lock);
 #define BUILD_LOCK_OPS(op, locktype)					\
 void __lockfunc _##op##_lock(locktype##_t *lock)			\
 {									\
-	preempt_disable();						\
 	for (;;) {							\
+		preempt_disable();					\
 		if (likely(_raw_##op##_trylock(lock)))			\
 			break;						\
 		preempt_enable();					\
+									\
 		if (!(lock)->break_lock)				\
 			(lock)->break_lock = 1;				\
 		while (!op##_can_lock(lock) && (lock)->break_lock)	\
 			cpu_relax();					\
-		preempt_disable();					\
 	}								\
 	(lock)->break_lock = 0;						\
 }									\
@@ -199,19 +199,18 @@ unsigned long __lockfunc _##op##_lock_irqsave(locktype##_t *lock)	\
 {									\
 	unsigned long flags;						\
 									\
-	preempt_disable();						\
 	for (;;) {							\
+		preempt_disable();					\
 		local_irq_save(flags);					\
 		if (likely(_raw_##op##_trylock(lock)))			\
 			break;						\
 		local_irq_restore(flags);				\
-									\
 		preempt_enable();					\
+									\
 		if (!(lock)->break_lock)				\
 			(lock)->break_lock = 1;				\
 		while (!op##_can_lock(lock) && (lock)->break_lock)	\
 			cpu_relax();					\
-		preempt_disable();					\
 	}								\
 	(lock)->break_lock = 0;						\
 	return flags;							\