xfs_mkfs: reflink conflicts with zoned file systems for now

Don't allow reflink on zoned file system until garbage collections learns
how to deal with shared extents and doesn't blindly unshare them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 5882ee4844a5045653670161cb6eb953fbcd9a1a..9192694dd5955172144fdd4e13037d79c86f42ee 100644 (file)
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -2966,6 +2966,14 @@ _("rt extent size not supported on realtime devices with zoned mode\n"));
                        }
                        cli->rtextsize = 0;
                }
+               if (cli->sb_feat.reflink) {
+                       if (cli_opt_set(&mopts, M_REFLINK)) {
+                               fprintf(stderr,
+_("reflink not supported on realtime devices with zoned mode specified\n"));
+                               usage();
+                       }
+                       cli->sb_feat.reflink = false;
+               }
 
                /*
                 * Set the rtinherit by default for zoned file systems as they