Re: [PATCH 2/4] libxfs: remove xfs_buf_oneshot

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On Thu, Mar 12, 2020 at 03:17:13PM +0100, Christoph Hellwig wrote:
> This function doesn't exist in the kernel and is purely a stub in
> xfsprogs, so remove it.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  libxfs/libxfs_priv.h | 2 --
>  libxfs/xfs_sb.c      | 2 --
>  2 files changed, 4 deletions(-)
> 
> diff --git a/libxfs/libxfs_priv.h b/libxfs/libxfs_priv.h
> index 17a0104b..723dddcd 100644
> --- a/libxfs/libxfs_priv.h
> +++ b/libxfs/libxfs_priv.h
> @@ -375,8 +375,6 @@ static inline struct xfs_buf *xfs_buf_incore(struct xfs_buftarg *target,
>  	return NULL;
>  }
>  
> -#define xfs_buf_oneshot(bp)		((void) 0)
> -
>  #define XBRW_READ			LIBXFS_BREAD
>  #define XBRW_WRITE			LIBXFS_BWRITE
>  #define xfs_buf_zero(bp,off,len)     libxfs_iomove(bp,off,len,NULL,LIBXFS_BZERO)
> diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c
> index 4f750d19..b931fee7 100644
> --- a/libxfs/xfs_sb.c
> +++ b/libxfs/xfs_sb.c
> @@ -982,7 +982,6 @@ xfs_update_secondary_sbs(
>  		}
>  
>  		bp->b_ops = &xfs_sb_buf_ops;
> -		xfs_buf_oneshot(bp);

Removing this will cause xfsprogs' libxfs to fall further out of sync
with the kernel's libxfs.  Eric and I have been trying to keep that to a
minimum.

--D

>  		xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
>  		xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
>  		xfs_buf_delwri_queue(bp, &buffer_list);
> @@ -1170,7 +1169,6 @@ xfs_sb_get_secondary(
>  	if (!bp)
>  		return -ENOMEM;
>  	bp->b_ops = &xfs_sb_buf_ops;
> -	xfs_buf_oneshot(bp);
>  	*bpp = bp;
>  	return 0;
>  }
> -- 
> 2.24.1
> 



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