linux-kernel - Re: [PATCH 11/13] xfs: Only free full extents for forcealign

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Message-ID: <20240621191322.GP3058325@frogsfrogsfrogs>
Date: Fri, 21 Jun 2024 12:13:22 -0700
From: "Darrick J. Wong" <djwong@...nel.org>
To: John Garry <john.g.garry@...cle.com>
Cc: chandan.babu@...cle.com, dchinner@...hat.com, hch@....de,
	viro@...iv.linux.org.uk, brauner@...nel.org, jack@...e.cz,
	linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, catherine.hoang@...cle.com,
	martin.petersen@...cle.com
Subject: Re: [PATCH 11/13] xfs: Only free full extents for forcealign

On Fri, Jun 21, 2024 at 10:05:38AM +0000, John Garry wrote:
> Like we already do for rtvol, only free full extents for forcealign in
> xfs_free_file_space().
> 
> Signed-off-by: John Garry <john.g.garry@...cle.com>

Seems fine to me.
Reviewed-by: Darrick J. Wong <djwong@...nel.org>

--D

> ---
>  fs/xfs/xfs_bmap_util.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
> index 56b80a7c0992..ee767a4fd63a 100644
> --- a/fs/xfs/xfs_bmap_util.c
> +++ b/fs/xfs/xfs_bmap_util.c
> @@ -842,8 +842,11 @@ xfs_free_file_space(
>  	startoffset_fsb = XFS_B_TO_FSB(mp, offset);
>  	endoffset_fsb = XFS_B_TO_FSBT(mp, offset + len);
>  
> -	/* We can only free complete realtime extents. */
> -	if (xfs_inode_has_bigrtalloc(ip)) {
> +	/* Free only complete extents. */
> +	if (xfs_inode_has_forcealign(ip)) {
> +		startoffset_fsb = roundup_64(startoffset_fsb, ip->i_extsize);
> +		endoffset_fsb = rounddown_64(endoffset_fsb, ip->i_extsize);
> +	} else if (xfs_inode_has_bigrtalloc(ip)) {
>  		startoffset_fsb = xfs_rtb_roundup_rtx(mp, startoffset_fsb);
>  		endoffset_fsb = xfs_rtb_rounddown_rtx(mp, endoffset_fsb);
>  	}
> -- 
> 2.31.1
> 
>