1 files changed, 9 insertions, 1 deletions

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 30878defaeb6..69ada5887078 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -3571,6 +3571,14 @@ int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
         lock_rsb(r);
 
         switch (error) {
+        case -EBADR:
+                /* There's a chance the new master received our lock before
+                   dlm_recover_master_reply(), this wouldn't happen if we did
+                   a barrier between recover_masters and recover_locks. */
+                log_debug(ls, "master copy not ready %x r %lx %s", lkb->lkb_id,
+                          (unsigned long)r, r->res_name);
+                dlm_send_rcom_lock(r, lkb);
+                goto out;
         case -EEXIST:
                 log_debug(ls, "master copy exists %x", lkb->lkb_id);
                 /* fall through */
@@ -3585,7 +3593,7 @@ int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
         /* an ack for dlm_recover_locks() which waits for replies from
            all the locks it sends to new masters */
         dlm_recovered_lock(r);
-
+ out:
         unlock_rsb(r);
         put_rsb(r);
         dlm_put_lkb(lkb);