On 2/2/18 3:36 PM, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
>
> We don't support reflink on the realtime device, so don't let people
> create such things.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx>
> ---
> mkfs/xfs_mkfs.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
>
> diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
> index 219b209..b20e3d6 100644
> --- a/mkfs/xfs_mkfs.c
> +++ b/mkfs/xfs_mkfs.c
> @@ -2025,6 +2025,13 @@ _("cowextsize not supported without reflink support\n"));
> usage();
> }
>
> + if (cli->sb_feat.reflink && cli->xi->rtname) {
> + fprintf(stderr,
> +_("reflink not supported with realtime devices\n"));
> + usage();
> + cli->sb_feat.reflink = false;
> + }
> +
> if (cli->sb_feat.rmapbt && cli->xi->rtname) {
> fprintf(stderr,
> _("rmapbt not supported with realtime devices\n"));
>
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