Messages in this thread Patch in this message | | | From | Sven Eckelmann <> | Subject | [PATCHv4 08/11] xfs: Use *_dec_not_zero instead of *_add_unless | Date | Wed, 27 Jul 2011 11:47:47 +0200 |
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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@narfation.org> Cc: Alex Elder <aelder@sgi.com> Cc: xfs-masters@oss.sgi.com Cc: xfs@oss.sgi.com --- fs/xfs/linux-2.6/xfs_buf.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index b2b4119..a68d9bf 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -1429,7 +1429,7 @@ xfs_buftarg_shrink( * zero. If the value is already zero, we need to reclaim the * buffer, otherwise it gets another trip through the LRU. */ - if (!atomic_add_unless(&bp->b_lru_ref, -1, 0)) { + if (!atomic_dec_not_zero(&bp->b_lru_ref)) { list_move_tail(&bp->b_lru, &btp->bt_lru); continue; } -- 1.7.5.4
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