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[v2] btrfs: simplify expression in btrfs_calc_trans_metadata_size()

Message ID 1453825984-12100-1-git-send-email-bhlee.kernel@gmail.com (mailing list archive)
State Accepted
Headers show

Commit Message

Byongho Lee Jan. 26, 2016, 4:33 p.m. UTC 
Simplify expression in btrfs_calc_trans_metadata_size().

Signed-off-by: Byongho Lee <bhlee.kernel@gmail.com>
Reviewed-by: Stefan Behrens <sbehrens@giantdisaster.de>
---
v2:
  Fix wrong function's name in commit log.
---
 fs/btrfs/ctree.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a9496644f47d..3ab8026280a2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3448,8 +3448,7 @@  u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes);
 static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_root *root,
 						 unsigned num_items)
 {
-	return (root->nodesize + root->nodesize * (BTRFS_MAX_LEVEL - 1)) *
-		2 * num_items;
+	return root->nodesize * BTRFS_MAX_LEVEL * 2 * num_items;
 }
 
 /*