Add mbr pseudo metadata handler.

[thirdparty/mdadm.git] / Assemble.c

diff --git a/Assemble.c b/Assemble.c
index afd4e60a283f7cfb641463e200775bda04b701b8..23d0b826f4304db1c5453cf09795b4ecf75579fe 100644 (file)
--- a/Assemble.c
+++ b/Assemble.c
@@ -262,8 +262,14 @@ int Assemble(struct supertype *st, char *mddev,
                        tmpdev->used = 2;
                } else if (tst->ss->load_super(tst,dfd, NULL)) {
                        if (report_missmatch)
-                               fprintf( stderr, Name ": no RAID superblock on %s\n",
-                                        devname);
+                               fprintf(stderr, Name ": no RAID superblock on %s\n",
+                                       devname);
+               } else if (tst->ss->compare_super == NULL) {
+                       if (report_missmatch)
+                               fprintf(stderr, Name ": Cannot assemble %s metadata on %s\n",
+                                       tst->ss->name, devname);
+                       tst->ss->free_super(tst);
+                       tmpdev->used = 2;
                } else if (auto_assem && st == NULL &&
                           !conf_test_metadata(tst->ss->name,
                                               tst->ss->match_home(tst, homehost) == 1)) {
@@ -1189,6 +1195,29 @@ int Assemble(struct supertype *st, char *mddev,
                                                                      (4 * content->array.chunk_size / 4096) + 1);
                                        }
                                }
+                               if (okcnt < (unsigned)content->array.raid_disks) {
+                                       /* If any devices did not get added
+                                        * because the kernel rejected them based
+                                        * on event count, try adding them
+                                        * again providing the action policy is
+                                        * 're-add' or greater.  The bitmap
+                                        * might allow them to be included, or
+                                        * they will become spares.
+                                        */
+                                       for (i = 0; i <= bestcnt; i++) {
+                                               int j = best[i];
+                                               if (j >= 0 && !devices[j].uptodate) {
+                                                       if (!disk_action_allows(&devices[j].i, st->ss->name, act_re_add))
+                                                               continue;
+                                                       rv = add_disk(mdfd, st, content,
+                                                                     &devices[j].i);
+                                                       if (rv == 0 && verbose >= 0)
+                                                               fprintf(stderr,
+                                                                       Name ": %s has been re-added.\n",
+                                                                       devices[j].devname);
+                                               }
+                                       }
+                               }
                                wait_for(mddev, mdfd);
                                close(mdfd);
                                if (auto_assem) {