xfs_mkfs: default to rtinherit=1 for zoned file systems

Zone file systems are intended to use sequential write required zones
(or areas treated as such) for data, and the main data device only for
metadata.  rtinherit=1 is the way to achieve that, so enabled it by
default.

Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index b7057c4ff72baeb697042fddec6df11c51c00e82..e470a11f6c7159543d3ad7bf634301a8200bae57 100644 (file)
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -2957,6 +2957,13 @@ _("rt extent size not supported on realtime devices with zoned mode\n"));
                        }
                        cli->rtextsize = 0;
                }
+
+               /*
+                * Force the rtinherit flag on the root inode for zoned file
+                * systems as they use the data device only as a metadata
+                * container.
+                */
+               cli->fsx.fsx_xflags |= FS_XFLAG_RTINHERIT;
        } else {
                if (cli->rtstart) {
                        fprintf(stderr,