From c14632ddac98dca7ab1740461fae330d09909560 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Wed, 31 Jan 2018 16:38:18 -0800 Subject: [PATCH] xfs: don't allow reflink + realtime filesystems We don't support realtime filesystems with reflink either, so fail those mounts. Signed-off-by: Darrick J. Wong Reviewed-by: Bill O'Donnell --- fs/xfs/xfs_super.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 0505605e25c1..96388fb9adff 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1684,6 +1684,13 @@ xfs_fs_fill_super( } } + if (xfs_sb_version_hasreflink(&mp->m_sb) && mp->m_sb.sb_rblocks) { + xfs_alert(mp, + "reflink not compatible with realtime device!"); + error = -EINVAL; + goto out_filestream_unmount; + } + if (xfs_sb_version_hasrmapbt(&mp->m_sb)) { if (mp->m_sb.sb_rblocks) { xfs_alert(mp, -- 2.30.2