[patch 2/5] tasklet: use lock bitops for tasklet lock

[npiggin@nick.local0.net]

[-- Attachment #1: tasklet_lock-use-lock-bitops.patch --]
[-- Type: text/plain, Size: 845 bytes --]

Signed-off-by: Nick Piggin <npiggin@suse.de>

---
 include/linux/interrupt.h |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Index: linux-2.6/include/linux/interrupt.h
===================================================================
--- linux-2.6.orig/include/linux/interrupt.h
+++ linux-2.6/include/linux/interrupt.h
@@ -321,13 +321,12 @@ enum
 #ifdef CONFIG_SMP
 static inline int tasklet_trylock(struct tasklet_struct *t)
 {
-	return !test_and_set_bit(TASKLET_STATE_RUN, &(t)->state);
+	return !test_and_set_bit_lock(TASKLET_STATE_RUN, &(t)->state);
 }
 
 static inline void tasklet_unlock(struct tasklet_struct *t)
 {
-	smp_mb__before_clear_bit(); 
-	clear_bit(TASKLET_STATE_RUN, &(t)->state);
+	clear_bit_unlock(TASKLET_STATE_RUN, &(t)->state);
 }
 
 static inline void tasklet_unlock_wait(struct tasklet_struct *t)

--