On 2018/8/20 下午9:28, Nikolay Borisov wrote:
> Rename the function so its name falls in line with the rest of btrfs
> nomenclature. So when we change the uuid of the header it's in fact
> of the buffer header.
We have setget functions like btrfs_header_nritems() or
btrfs_header_bytenr(), IMHO both ways make sense.
Although I have no objection against current modification.
> Also remove the root argument since it's used
> solely to take a reference to fs_info which can be done via the
> mandatory eb argument. No functional changes.>
> Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>
Thanks,
Qu
> ---
> btrfstune.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/btrfstune.c b/btrfstune.c
> index 723317a00f3a..3745a00c46ae 100644
> --- a/btrfstune.c
> +++ b/btrfstune.c
> @@ -91,9 +91,9 @@ static int set_super_incompat_flags(struct btrfs_root *root, u64 flags)
> return ret;
> }
>
> -static int change_header_uuid(struct btrfs_root *root, struct extent_buffer *eb)
> +static int change_buffer_header_uuid(struct extent_buffer *eb)
> {
> - struct btrfs_fs_info *fs_info = root->fs_info;
> + struct btrfs_fs_info *fs_info = eb->fs_info;
> int same_fsid = 1;
> int same_chunk_tree_uuid = 1;
> int ret;
> @@ -157,7 +157,7 @@ static int change_extents_uuid(struct btrfs_fs_info *fs_info)
> ret = PTR_ERR(eb);
> goto out;
> }
> - ret = change_header_uuid(root, eb);
> + ret = change_buffer_header_uuid(eb);
> free_extent_buffer(eb);
> if (ret < 0) {
> error("failed to change uuid of tree block: %llu",
>
