From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 17 Nov 2011 06:12:38 +0000 (-0500)
Subject: btrfs: kill pointless reassignment of ->s_fs_info in btrfs_fill_super()
X-Git-Tag: firefly_0821_release~3680^2~3677^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=29db78aa0ac82319b764b87a1c5030d74523e296;p=firefly-linux-kernel-4.4.55.git

btrfs: kill pointless reassignment of ->s_fs_info in btrfs_fill_super()

We do not (fortunately) modify ->s_fs_info of superblock on the fly in
btrfs_fill_super(); apparent assignment is a no-op.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 56e007fd6702..a381f9f9b0c2 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -588,8 +588,8 @@ static int btrfs_fill_super(struct super_block *sb,
 {
 	struct inode *inode;
 	struct dentry *root_dentry;
-	struct btrfs_root *tree_root;
-	struct btrfs_fs_info *fs_info;
+	struct btrfs_root *tree_root = sb->s_fs_info;
+	struct btrfs_fs_info *fs_info = tree_root->fs_info;
 	struct btrfs_key key;
 	int err;
 
@@ -609,9 +609,6 @@ static int btrfs_fill_super(struct super_block *sb,
 		printk("btrfs: open_ctree failed\n");
 		return err;
 	}
-	tree_root = sb->s_fs_info;
-	fs_info = tree_root->fs_info;
-	sb->s_fs_info = tree_root;
 
 	key.objectid = BTRFS_FIRST_FREE_OBJECTID;
 	key.type = BTRFS_INODE_ITEM_KEY;