atomic_dec_not_zero is defined for each architecture through <linux/atomic.h> to provide the functionality of atomic_add_unless(x, -1, 0). Signed-off-by: Sven Eckelmann <sven@xxxxxxxxxxxxx> Cc: "Theodore Ts'o" <tytso@xxxxxxx> Cc: Andreas Dilger <adilger.kernel@xxxxxxxxx> Cc: linux-ext4@xxxxxxxxxxxxxxx --- fs/ext4/ext4.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index fa44df8..29996e8 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2098,7 +2098,7 @@ static inline void ext4_lock_group(struct super_block *sb, ext4_group_t group) * We're able to grab the lock right away, so drop the * lock contention counter. */ - atomic_add_unless(&EXT4_SB(sb)->s_lock_busy, -1, 0); + atomic_dec_not_zero(&EXT4_SB(sb)->s_lock_busy); else { /* * The lock is busy, so bump the contention counter, -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html