linux-kernel - Re: [PATCH 01/23] xfs: use uuid_copy() helper to abstract uuid

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Date:   Thu, 18 May 2017 16:32:48 -0700
From:   "Darrick J. Wong" <darrick.wong@...cle.com>
To:     Christoph Hellwig <hch@....de>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Amir Goldstein <amir73il@...il.com>,
        linux-fsdevel@...r.kernel.org, Shaohua Li <shli@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        David Howells <dhowells@...hat.com>,
        Steven Whitehouse <swhiteho@...hat.com>,
        Mimi Zohar <zohar@...ux.vnet.ibm.com>,
        linux-xfs@...r.kernel.org, linux-raid@...r.kernel.org,
        linux-nvdimm@...1.01.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/23] xfs: use uuid_copy() helper to abstract uuid_t

On Thu, May 18, 2017 at 08:26:43AM +0200, Christoph Hellwig wrote:
> From: Amir Goldstein <amir73il@...il.com>
> 
> uuid_t definition is about to change.
> 
> Signed-off-by: Amir Goldstein <amir73il@...il.com>
> Signed-off-by: Christoph Hellwig <hch@....de>

Reviewed-by: Darrick J. Wong <darrick.wong@...cle.com>

> ---
>  fs/xfs/xfs_inode_item.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
> index 08cb7d1a4a3a..013cc78d7daf 100644
> --- a/fs/xfs/xfs_inode_item.c
> +++ b/fs/xfs/xfs_inode_item.c
> @@ -834,9 +834,7 @@ xfs_inode_item_format_convert(
>  		in_f->ilf_dsize = in_f32->ilf_dsize;
>  		in_f->ilf_ino = in_f32->ilf_ino;
>  		/* copy biggest field of ilf_u */
> -		memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
> -		       in_f32->ilf_u.ilfu_uuid.__u_bits,
> -		       sizeof(uuid_t));
> +		uuid_copy(&in_f->ilf_u.ilfu_uuid, &in_f32->ilf_u.ilfu_uuid);
>  		in_f->ilf_blkno = in_f32->ilf_blkno;
>  		in_f->ilf_len = in_f32->ilf_len;
>  		in_f->ilf_boffset = in_f32->ilf_boffset;
> @@ -851,9 +849,7 @@ xfs_inode_item_format_convert(
>  		in_f->ilf_dsize = in_f64->ilf_dsize;
>  		in_f->ilf_ino = in_f64->ilf_ino;
>  		/* copy biggest field of ilf_u */
> -		memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
> -		       in_f64->ilf_u.ilfu_uuid.__u_bits,
> -		       sizeof(uuid_t));
> +		uuid_copy(&in_f->ilf_u.ilfu_uuid, &in_f64->ilf_u.ilfu_uuid);
>  		in_f->ilf_blkno = in_f64->ilf_blkno;
>  		in_f->ilf_len = in_f64->ilf_len;
>  		in_f->ilf_boffset = in_f64->ilf_boffset;
> -- 
> 2.11.0
> 
> --
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