btrfs: Code cleanup

Attaching below is some of the code cleanups that i came across while
reading the code.

a) alloc_path already calls init_path.
b) Mention that btrfs_inode is the in memory copy.Ext4 have ext4_inode_info as
the in memory copy ext4_inode as the disk copy

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 7a2d63c1ee80..8e1b9046d5ec 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -36,7 +36,6 @@ int btrfs_find_last_root(struct btrfs_root *root, u64 objectid,
 
         path = btrfs_alloc_path();
         BUG_ON(!path);
-        btrfs_init_path(path);
         ret = btrfs_search_slot(NULL, root, &search_key, path, 0, 0);
         if (ret < 0)
                 goto out;
@@ -70,7 +69,6 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root
 
         path = btrfs_alloc_path();
         BUG_ON(!path);
-        btrfs_init_path(path);
         ret = btrfs_search_slot(trans, root, key, path, 0, 1);
         if (ret < 0)
                 goto out;
@@ -106,7 +104,6 @@ int btrfs_del_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 
         path = btrfs_alloc_path();
         BUG_ON(!path);
-        btrfs_init_path(path);
         ret = btrfs_search_slot(trans, root, key, path, -1, 1);
         if (ret < 0)
                 goto out;