Re: [PATCH 2/2] xfs: Move AGI buffer type setting to xfs_read_agi

[Brian Foster <bfoster@redhat.com>]

On Wed, Nov 30, 2016 at 04:42:50PM -0600, Eric Sandeen wrote:
> We've missed properly setting the buffer type for
> an AGI transaction in 3 spots now, so just move it
> into xfs_read_agi() and set it if we are in a transaction
> to avoid the problem in the future.
> 
> This is similar to how it is done in i.e. the dir3
> and attr3 read functions.
> 
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
> ---

Looks like there's one more instance that can be removed in
xfs_iunlink(). Otherwise, looks good:

Reviewed-by: Brian Foster <bfoster@redhat.com>

> 
> diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
> index 51b4e0d..c482b97 100644
> --- a/fs/xfs/libxfs/xfs_ialloc.c
> +++ b/fs/xfs/libxfs/xfs_ialloc.c
> @@ -2450,8 +2450,6 @@
>  	ASSERT(agi->agi_magicnum == cpu_to_be32(XFS_AGI_MAGIC));
>  #endif
>  
> -	xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGI_BUF);
> -
>  	/*
>  	 * Compute byte offsets for the first and last fields in the first
>  	 * region and log the agi buffer. This only logs up through
> @@ -2592,6 +2590,8 @@
>  			XFS_FSS_TO_BB(mp, 1), 0, bpp, &xfs_agi_buf_ops);
>  	if (error)
>  		return error;
> +	if (tp)
> +		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_AGI_BUF);
>  
>  	xfs_buf_set_ref(*bpp, XFS_AGI_REF);
>  	return 0;
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index 4e560e6..36e6372 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -2133,7 +2133,6 @@
>  		agi->agi_unlinked[bucket_index] = cpu_to_be32(next_agino);
>  		offset = offsetof(xfs_agi_t, agi_unlinked) +
>  			(sizeof(xfs_agino_t) * bucket_index);
> -		xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
>  		xfs_trans_log_buf(tp, agibp, offset,
>  				  (offset + sizeof(xfs_agino_t) - 1));
>  	} else {
> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
> index 2d91f5a..9b3d7c7 100644
> --- a/fs/xfs/xfs_log_recover.c
> +++ b/fs/xfs/xfs_log_recover.c
> @@ -4929,7 +4929,6 @@ static inline bool xlog_item_is_intent(struct xfs_log_item *lip)
>  	agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
>  	offset = offsetof(xfs_agi_t, agi_unlinked) +
>  		 (sizeof(xfs_agino_t) * bucket);
> -	xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
>  	xfs_trans_log_buf(tp, agibp, offset,
>  			  (offset + sizeof(xfs_agino_t) - 1));
>  
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html