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

From: npiggin
Date: Wed Oct 24 2007 - 05:05:09 EST


Signed-off-by: Nick Piggin <npiggin@xxxxxxx>

---
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)

--

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/