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Re: [PATCH] update check on valid sb fields being modified on mount

To: David Chinner <dgc@xxxxxxx>
Subject: Re: [PATCH] update check on valid sb fields being modified on mount
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Fri, 16 May 2008 08:50:43 -0500
Cc: xfs-dev <xfs-dev@xxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <20080516131548.GX103491721@sgi.com>
References: <20080516131548.GX103491721@sgi.com>
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Thunderbird 2.0.0.14 (Macintosh/20080421)
David Chinner wrote:
> Recent changes to update the version number during mount
> (attr2 stuff) failed to change the assert that checked for
> calid flags being changed on mount. Clearly this path hasn't
> been exercised by the test code....
> 
> Signed-off-by: Dave Chinner <dgc@xxxxxxx>
> ---
>  fs/xfs/xfs_mount.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> Index: 2.6.x-xfs-new/fs/xfs/xfs_mount.c
> ===================================================================
> --- 2.6.x-xfs-new.orig/fs/xfs/xfs_mount.c     2008-05-16 23:08:18.000000000 
> +1000
> +++ 2.6.x-xfs-new/fs/xfs/xfs_mount.c  2008-05-16 23:10:00.224848630 +1000
> @@ -1887,7 +1887,8 @@ xfs_mount_log_sb(
>       int             error;
>  
>       ASSERT(fields & (XFS_SB_UNIT | XFS_SB_WIDTH | XFS_SB_UUID |
> -                      XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2));
> +                      XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2 |
> +                      XFS_SB_VERSIONNUM));
>  
>       tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT);
>       error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
> 
> 

Ah, looks like this is from:

                /* update sb_versionnum for the clearing of the morebits */
                if (!sbp->sb_features2)
                        update_flags |= XFS_SB_VERSIONNUM;

when attr2 gets turned back off?

Anyway, looks fine.

-Eric


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