*melp = NULL;
f = fopen("/var/run/mdadm/map", "r");
+ if (!f)
+ f = fopen("/var/run/mdadm.map", "r");
+ if (!f) {
+ RebuildMap();
+ f = fopen("/var/run/mdadm/map", "r");
+ }
if (!f)
f = fopen("/var/run/mdadm.map", "r");
if (!f)
}
return NULL;
}
+
+void RebuildMap(void)
+{
+ struct mdstat_ent *mdstat = mdstat_read(0, 0);
+ struct mdstat_ent *md;
+ struct map_ent *map = NULL;
+ int mdp = get_mdp_major();
+
+ for (md = mdstat ; md ; md = md->next) {
+ struct mdinfo *sra = sysfs_read(-1, md->devnum, GET_DEVS);
+ struct mdinfo *sd;
+
+ for (sd = sra->devs ; sd ; sd = sd->next) {
+ char dn[30];
+ int dfd;
+ int ok;
+ struct supertype *st;
+ char *path;
+ struct mdinfo info;
+
+ sprintf(dn, "%d:%d", sd->disk.major, sd->disk.minor);
+ dfd = dev_open(dn, O_RDONLY);
+ if (dfd < 0)
+ continue;
+ st = guess_super(dfd);
+ if ( st == NULL)
+ ok = -1;
+ else
+ ok = st->ss->load_super(st, dfd, NULL);
+ close(dfd);
+ if (ok != 0)
+ continue;
+ st->ss->getinfo_super(st, &info);
+ if (md->devnum > 0)
+ path = map_dev(MD_MAJOR, md->devnum, 0);
+ else
+ path = map_dev(mdp, (-1-md->devnum)<< 6, 0);
+ map_add(&map, md->devnum,
+ info.text_version,
+ info.uuid, path ? : "/unknown");
+ st->ss->free_super(st);
+ break;
+ }
+ sysfs_free(sra);
+ }
+ map_write(map);
+ map_free(map);
+ for (md = mdstat ; md ; md = md->next) {
+ struct mdinfo *sra = sysfs_read(-1, md->devnum, GET_VERSION);
+ sysfs_uevent(sra, "change");
+ sysfs_free(sra);
+ }
+}