On Tue, Aug 27, 2019 at 02:46:29PM +0300, Nikolay Borisov wrote:
> btrfs_find_name_in_ext_backref returns either 0/1 depending on whether it
> found a backref for the given name. If it returns true then the actual
> inode_ref struct is returned in one of its parameters. That's pointless,
> instead refactor the function such that it returns either a pointer
> to the btrfs_inode_extref or NULL it it didn't find anything. This
> streamlines the function calling convention.
> 
> Signed-off-by: Nikolay Borisov <nbori...@suse.com>
> ---
>  fs/btrfs/ctree.h      |  9 ++++-----
>  fs/btrfs/inode-item.c | 33 +++++++++++++--------------------
>  fs/btrfs/tree-log.c   |  6 +++---
>  3 files changed, 20 insertions(+), 28 deletions(-)
> 
> diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
> index 11312aeb6ff6..8b9469df8e3f 100644
> --- a/fs/btrfs/ctree.h
> +++ b/fs/btrfs/ctree.h
> @@ -2863,11 +2863,10 @@ btrfs_lookup_inode_extref(struct btrfs_trans_handle 
> *trans,
>  struct btrfs_inode_ref *btrfs_find_name_in_backref(struct extent_buffer 
> *leaf,
>                                                  int slot, const char *name,
>                                                  int name_len);
> -int btrfs_find_name_in_ext_backref(struct extent_buffer *leaf, int slot,
> -                                u64 ref_objectid, const char *name,
> -                                int name_len,
> -                                struct btrfs_inode_extref **extref_ret);
> -
> +struct btrfs_inode_extref *
> +btrfs_find_name_in_ext_backref(struct extent_buffer *leaf, int slot,
> +                            u64 ref_objectid, const char *name,
> +                            int name_len);

Please use the common style for function declarations/definitions with
type and name on one line.

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