Re: [PATCH 4/7] btrfs: remove redundant parameter from btree_readahead_hook

[Liu Bo <bo.li.liu@oracle.com>]

On Wed, Mar 15, 2017 at 05:02:33PM +0100, David Sterba wrote:
> We can read fs_info from eb.
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>

Thanks,

-liubo
> 
> Signed-off-by: David Sterba <dsterba@suse.com>
> ---
>  fs/btrfs/ctree.h   | 3 +--
>  fs/btrfs/disk-io.c | 4 ++--
>  fs/btrfs/reada.c   | 4 ++--
>  3 files changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
> index 29b7fc28c607..173fac68323a 100644
> --- a/fs/btrfs/ctree.h
> +++ b/fs/btrfs/ctree.h
> @@ -3671,8 +3671,7 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root,
>  			      struct btrfs_key *start, struct btrfs_key *end);
>  int btrfs_reada_wait(void *handle);
>  void btrfs_reada_detach(void *handle);
> -int btree_readahead_hook(struct btrfs_fs_info *fs_info,
> -			 struct extent_buffer *eb, int err);
> +int btree_readahead_hook(struct extent_buffer *eb, int err);
>  
>  static inline int is_fstree(u64 rootid)
>  {
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 1d4c30327247..995b28179af9 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -762,7 +762,7 @@ static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
>  err:
>  	if (reads_done &&
>  	    test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))
> -		btree_readahead_hook(fs_info, eb, ret);
> +		btree_readahead_hook(eb, ret);
>  
>  	if (ret) {
>  		/*
> @@ -787,7 +787,7 @@ static int btree_io_failed_hook(struct page *page, int failed_mirror)
>  	eb->read_mirror = failed_mirror;
>  	atomic_dec(&eb->io_pages);
>  	if (test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))
> -		btree_readahead_hook(eb->fs_info, eb, -EIO);
> +		btree_readahead_hook(eb, -EIO);
>  	return -EIO;	/* we fixed nothing */
>  }
>  
> diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
> index 4c5a9b241cab..5edf7328f67d 100644
> --- a/fs/btrfs/reada.c
> +++ b/fs/btrfs/reada.c
> @@ -209,9 +209,9 @@ static void __readahead_hook(struct btrfs_fs_info *fs_info,
>  	return;
>  }
>  
> -int btree_readahead_hook(struct btrfs_fs_info *fs_info,
> -			 struct extent_buffer *eb, int err)
> +int btree_readahead_hook(struct extent_buffer *eb, int err)
>  {
> +	struct btrfs_fs_info *fs_info = eb->fs_info;
>  	int ret = 0;
>  	struct reada_extent *re;
>  
> -- 
> 2.12.0
> 
> --
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