From: Darrick J. Wong <darrick.wong@oracle.com>
Date: Mon, 5 Feb 2018 20:37:35 +0000 (-0600)
Subject: mkfs: don't create realtime filesystems with reflink enabled
X-Git-Tag: v4.15.0-rc1~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bfa66ecdb675afbf00d48c70cf5d53af383f27f0;p=thirdparty%2Fxfsprogs-dev.git

mkfs: don't create realtime filesystems with reflink enabled

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@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
---

diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 219b209b4..b20e3d682 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"));