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authorLars Ellenberg <lars.ellenberg@linbit.com>2011-02-21 15:20:55 +0300
committerPhilipp Reisner <philipp.reisner@linbit.com>2011-10-14 18:47:42 +0400
commit4738fa16907a933d72bbcae1b8922dc9330fde92 (patch)
treed0a48980a5269758ba01545b4200c548b30b0909 /include/linux/lru_cache.h
parent61610420f764acb835af4a450251dbab2ab6d621 (diff)
downloadlinux-4738fa16907a933d72bbcae1b8922dc9330fde92.tar.xz
drbd: use clear_bit_unlock() where appropriate
Some open-coded clear_bit(); smp_mb__after_clear_bit(); should in fact have been smp_mb__before_clear_bit(); clear_bit(); Instead, use clear_bit_unlock() to annotate the intention, and have it do the right thing. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'include/linux/lru_cache.h')
-rw-r--r--include/linux/lru_cache.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/lru_cache.h b/include/linux/lru_cache.h
index 7a71ffad037c..4cceafb0732d 100644
--- a/include/linux/lru_cache.h
+++ b/include/linux/lru_cache.h
@@ -275,8 +275,7 @@ static inline int lc_try_lock(struct lru_cache *lc)
*/
static inline void lc_unlock(struct lru_cache *lc)
{
- clear_bit(__LC_DIRTY, &lc->flags);
- smp_mb__after_clear_bit();
+ clear_bit_unlock(__LC_DIRTY, &lc->flags);
}
static inline int lc_is_used(struct lru_cache *lc, unsigned int enr)