md: Add support for Raid5->Raid0 and Raid10->Raid0 takeover

Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 22c630b7ba6c..7dcc74089550 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3045,6 +3045,13 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
         mddev->layout = mddev->new_layout;
         mddev->chunk_sectors = mddev->new_chunk_sectors;
         mddev->delta_disks = 0;
+        if (mddev->pers->sync_request == NULL) {
+                /* this is now an array without redundancy, so
+                 * it must always be in_sync
+                 */
+                mddev->in_sync = 1;
+                del_timer_sync(&mddev->safemode_timer);
+        }
         pers->run(mddev);
         mddev_resume(mddev);
         set_bit(MD_CHANGE_DEVS, &mddev->flags);