Btrfs: remove old tree_root case in btrfs_read_locked_inode()

commit 67ade058ef2c65a3e56878af9c293ec76722a2e5 upstream.

As Jeff explained in c2951f32d36c ("btrfs: remove old tree_root dirent
processing in btrfs_real_readdir()"), supporting this old format is no
longer necessary since the Btrfs magic number has been updated since we
changed to the current format. There are other places where we still
handle this old format, but since this is part of a fix that is going to
stable, I'm only removing this one for now.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 79babd4a6ce26d6b0e6a56da47efb723431abc70)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index cafff04835eb01b1a89cf5d85de0a9b90c8052a5..12db964b7257afd137885a7493dadda524c056fc 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3782,10 +3782,7 @@ cache_acl:
                break;
        case S_IFDIR:
                inode->i_fop = &btrfs_dir_file_operations;
-               if (root == root->fs_info->tree_root)
-                       inode->i_op = &btrfs_dir_ro_inode_operations;
-               else
-                       inode->i_op = &btrfs_dir_inode_operations;
+               inode->i_op = &btrfs_dir_inode_operations;
                break;
        case S_IFLNK:
                inode->i_op = &btrfs_symlink_inode_operations;