This patch modifies the queue_write_unlock() function to use the
new smp_store_release() function in another pending patch. This patch
should only be merged if the other patch was merged.
Signed-off-by: Waiman Long <waiman.l...@hp.com>
---
include/asm-generic/qrwlock.h | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/include/asm-generic/qrwlock.h b/include/asm-generic/qrwlock.h
index 335473a..59c5972 100644
--- a/include/asm-generic/qrwlock.h
+++ b/include/asm-generic/qrwlock.h
@@ -176,9 +176,7 @@ static inline void queue_write_unlock(struct qrwlock *lock)
/*
* Make sure that none of the critical section will be leaked out.
*/
- smp_mb__before_clear_bit();
- ACCESS_ONCE(lock->cnts.writer) = 0;
- smp_mb__after_clear_bit();
+ smp_store_release(&lock->cnts.writer, 0)
}
/*
--
1.7.1
--
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