Re: [PATCH] xfs: fix inverted return from xfs_btree_sblock_verify_crc

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On Thu, Nov 29, 2018 at 08:48:25PM -0600, Eric Sandeen wrote:
> xfs_btree_sblock_verify_crc is a bool so should not be returning
> a failaddr_t; worse, if xfs_log_check_lsn fails it returns
> __this_address which looks like a boolean true (i.e. success)
> to the caller.
> 
> (interestingly xfs_btree_lblock_verify_crc doesn't have the issue)
> 
> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

--D

> ---
> 
> diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
> index 34c6d7bd4d18..bbdae2b4559f 100644
> --- a/fs/xfs/libxfs/xfs_btree.c
> +++ b/fs/xfs/libxfs/xfs_btree.c
> @@ -330,7 +330,7 @@ xfs_btree_sblock_verify_crc(
>  
>  	if (xfs_sb_version_hascrc(&mp->m_sb)) {
>  		if (!xfs_log_check_lsn(mp, be64_to_cpu(block->bb_u.s.bb_lsn)))
> -			return __this_address;
> +			return false;
>  		return xfs_buf_verify_cksum(bp, XFS_BTREE_SBLOCK_CRC_OFF);
>  	}
>  
> 



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