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, 2 deletions

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 37dd3801a107..3c140cc1dd05 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -38,7 +38,6 @@ int btrfs_insert_file_extent(struct btrfs_trans_handle *trans,
 
         path = btrfs_alloc_path();
         BUG_ON(!path);
-        btrfs_init_path(path);
         file_key.objectid = objectid;
         file_key.offset = pos;
         file_key.flags = 0;
@@ -274,7 +273,6 @@ int btrfs_csum_verify_file_block(struct btrfs_root *root,
 
         path = btrfs_alloc_path();
         BUG_ON(!path);
-        btrfs_init_path(path);
         file_key.objectid = objectid;
         file_key.offset = offset;
         file_key.flags = 0;