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Message-ID: <aa56f811-4b80-4df6-92c5-c4f44f73f0f4@gmx.com>
Date: Fri, 4 Oct 2024 06:41:02 +0930
From: Qu Wenruo <quwenruo.btrfs@....com>
To: linux@...blig.org, clm@...com, josef@...icpanda.com, dsterba@...e.com,
 hch@....de
Cc: rostedt@...dmis.org, mhiramat@...nel.org, mathieu.desnoyers@...icios.com,
 linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: Remove unused btrfs_is_parity_mirror



在 2024/10/3 23:57, linux@...blig.org 写道:
> From: "Dr. David Alan Gilbert" <linux@...blig.org>
>
> btrfs_is_parity_mirror() has been unused since commit
> 4886ff7b50f6 ("btrfs: introduce a new helper to submit write bio for repair")
>
> Remove it.
>
> Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>

Reviewed-by: Qu Wenruo <wqu@...e.com>

Thanks,
Qu
> ---
>   fs/btrfs/volumes.c | 18 ------------------
>   fs/btrfs/volumes.h |  2 --
>   2 files changed, 20 deletions(-)
>
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index 8f340ad1d938..7453b4999263 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -5841,24 +5841,6 @@ unsigned long btrfs_full_stripe_len(struct btrfs_fs_info *fs_info,
>   	return len;
>   }
>
> -int btrfs_is_parity_mirror(struct btrfs_fs_info *fs_info, u64 logical, u64 len)
> -{
> -	struct btrfs_chunk_map *map;
> -	int ret = 0;
> -
> -	if (!btrfs_fs_incompat(fs_info, RAID56))
> -		return 0;
> -
> -	map = btrfs_get_chunk_map(fs_info, logical, len);
> -
> -	if (!WARN_ON(IS_ERR(map))) {
> -		if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK)
> -			ret = 1;
> -		btrfs_free_chunk_map(map);
> -	}
> -	return ret;
> -}
> -
>   static int find_live_mirror(struct btrfs_fs_info *fs_info,
>   			    struct btrfs_chunk_map *map, int first,
>   			    int dev_replace_is_ongoing)
> diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
> index 03d2d60afe0c..715af107ea5d 100644
> --- a/fs/btrfs/volumes.h
> +++ b/fs/btrfs/volumes.h
> @@ -735,8 +735,6 @@ int btrfs_run_dev_stats(struct btrfs_trans_handle *trans);
>   void btrfs_rm_dev_replace_remove_srcdev(struct btrfs_device *srcdev);
>   void btrfs_rm_dev_replace_free_srcdev(struct btrfs_device *srcdev);
>   void btrfs_destroy_dev_replace_tgtdev(struct btrfs_device *tgtdev);
> -int btrfs_is_parity_mirror(struct btrfs_fs_info *fs_info,
> -			   u64 logical, u64 len);
>   unsigned long btrfs_full_stripe_len(struct btrfs_fs_info *fs_info,
>   				    u64 logical);
>   u64 btrfs_calc_stripe_length(const struct btrfs_chunk_map *map);


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