linux-kernel - [PATCH] btrfs: use a single if() statement for one outcome in get_block

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Date:	Wed, 9 Sep 2015 00:18:50 +0000
From:	Alexandru Moise <00moses.alexander00@...il.com>
To:	clm@...com
Cc:	jbacik@...com, dsterba@...e.com, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, 00moses.alexander00@...il.com
Subject: [PATCH] btrfs: use a single if() statement for one outcome in
 get_block_rsv()

Rather than have three separate if() statements for the same outcome
we should just OR them together in the same if() statement.

Signed-off-by: Alexandru Moise <00moses.alexander00@...il.com>
---
 fs/btrfs/extent-tree.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 5411f0a..e8f2c15 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4890,13 +4890,9 @@ static struct btrfs_block_rsv *get_block_rsv(
 {
 	struct btrfs_block_rsv *block_rsv = NULL;
 
-	if (test_bit(BTRFS_ROOT_REF_COWS, &root->state))
-		block_rsv = trans->block_rsv;
-
-	if (root == root->fs_info->csum_root && trans->adding_csums)
-		block_rsv = trans->block_rsv;
-
-	if (root == root->fs_info->uuid_root)
+	if (test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
+	    (root == root->fs_info->csum_root && trans->adding_csums) ||
+	     (root == root->fs_info->uuid_root))
 		block_rsv = trans->block_rsv;
 
 	if (!block_rsv)
-- 
2.5.1

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