On Wed, Jan 31, 2018 at 05:11:25PM -0600, Bill O'Donnell wrote:
> On Wed, Jan 31, 2018 at 02:23:24PM -0800, Darrick J. Wong wrote:
> > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> >
> > Now that reflink is no longer experimental, reject attempts to mount
> > with DAX until that whole mess gets sorted out.
> >
> > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
>
> nit: Check alignment of the warning message (probably ok?)...
nevermind. Alignment wasn't in your change. :)
Reviewed-by: Bill O'Donnell <billodo@xxxxxxxxxx>
>
> Reviewed-by: Bill O'Donnell <billodo@xxxxxxxxxx>
>
> > ---
> > fs/xfs/xfs_super.c | 5 ++++-
> > 1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> > index f436eec..fd34cf2 100644
> > --- a/fs/xfs/xfs_super.c
> > +++ b/fs/xfs/xfs_super.c
> > @@ -1666,9 +1666,12 @@ xfs_fs_fill_super(
> > "DAX unsupported by block device. Turning off DAX.");
> > mp->m_flags &= ~XFS_MOUNT_DAX;
> > }
> > - if (xfs_sb_version_hasreflink(&mp->m_sb))
> > + if (xfs_sb_version_hasreflink(&mp->m_sb)) {
> > xfs_alert(mp,
> > "DAX and reflink cannot be used together!");
> > + error = -EINVAL;
> > + goto out_filestream_unmount;
> > + }
> > }
> >
> > if (mp->m_flags & XFS_MOUNT_DISCARD) {
> > --
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