+ snprintf(percentalert, sizeof(percentalert), "Rebuild%02d", mse->percent);
+
+ alert(percentalert, dev, NULL, ainfo);
+ }
+
+ if (mse->percent == -1 &&
+ st->percent >= 0) {
+ /* Rebuild/sync/whatever just finished.
+ * If there is a number in /mismatch_cnt,
+ * we should report that.
+ */
+ struct mdinfo *sra =
+ sysfs_read(-1, st->devnum, GET_MISMATCH);
+ if (sra && sra->mismatch_cnt > 0) {
+ char cnt[40];
+ sprintf(cnt, " mismatches found: %d", sra->mismatch_cnt);
+ alert("RebuildFinished", dev, cnt, ainfo);
+ } else
+ alert("RebuildFinished", dev, NULL, ainfo);
+ if (sra)
+ free(sra);
+ }
+ st->percent = mse->percent;
+
+ for (i=0; i<MaxDisks && i <= array.raid_disks + array.nr_disks;
+ i++) {
+ mdu_disk_info_t disc;
+ disc.number = i;
+ if (ioctl(fd, GET_DISK_INFO, &disc) >= 0) {
+ info[i].state = disc.state;
+ info[i].major = disc.major;
+ info[i].minor = disc.minor;
+ } else
+ info[i].major = info[i].minor = 0;
+ }
+
+ if (strncmp(mse->metadata_version, "external:", 9) == 0 &&
+ is_subarray(mse->metadata_version+9))
+ st->parent_dev =
+ devname2devnum(mse->metadata_version+10);
+ else
+ st->parent_dev = NoMdDev;
+ if (st->metadata == NULL &&
+ st->parent_dev == NoMdDev)
+ st->metadata = super_by_fd(fd, NULL);
+
+ close(fd);
+
+ for (i=0; i<MaxDisks; i++) {
+ mdu_disk_info_t disc = {0,0,0,0,0};
+ int newstate=0;
+ int change;
+ char *dv = NULL;
+ disc.number = i;
+ if (i > array.raid_disks + array.nr_disks) {
+ newstate = 0;
+ disc.major = disc.minor = 0;
+ } else if (info[i].major || info[i].minor) {
+ newstate = info[i].state;
+ dv = map_dev(info[i].major, info[i].minor, 1);
+ disc.state = newstate;
+ disc.major = info[i].major;
+ disc.minor = info[i].minor;
+ } else if (mse && mse->pattern && i < (int)strlen(mse->pattern)) {
+ switch(mse->pattern[i]) {
+ case 'U': newstate = 6 /* ACTIVE/SYNC */; break;
+ case '_': newstate = 0; break;
+ }
+ disc.major = disc.minor = 0;
+ }
+ if (dv == NULL && st->devid[i])
+ dv = map_dev(major(st->devid[i]),
+ minor(st->devid[i]), 1);
+ change = newstate ^ st->devstate[i];
+ if (st->utime && change && !st->err) {
+ if (i < array.raid_disks &&
+ (((newstate&change)&(1<<MD_DISK_FAULTY)) ||
+ ((st->devstate[i]&change)&(1<<MD_DISK_ACTIVE)) ||
+ ((st->devstate[i]&change)&(1<<MD_DISK_SYNC)))
+ )
+ alert("Fail", dev, dv, ainfo);
+ else if (i >= array.raid_disks &&
+ (disc.major || disc.minor) &&
+ st->devid[i] == makedev(disc.major, disc.minor) &&
+ ((newstate&change)&(1<<MD_DISK_FAULTY))
+ )
+ alert("FailSpare", dev, dv, ainfo);
+ else if (i < array.raid_disks &&
+ ! (newstate & (1<<MD_DISK_REMOVED)) &&
+ (((st->devstate[i]&change)&(1<<MD_DISK_FAULTY)) ||
+ ((newstate&change)&(1<<MD_DISK_ACTIVE)) ||
+ ((newstate&change)&(1<<MD_DISK_SYNC)))
+ )
+ alert("SpareActive", dev, dv, ainfo);
+ }
+ st->devstate[i] = newstate;
+ st->devid[i] = makedev(disc.major, disc.minor);
+ }
+ st->active = array.active_disks;
+ st->working = array.working_disks;
+ st->spare = array.spare_disks;
+ st->failed = array.failed_disks;
+ st->utime = array.utime;
+ st->raid = array.raid_disks;
+ st->err = 0;
+ if ((st->active < st->raid) && st->spare == 0)
+ return 1;
+ return 0;
+}
+
+static int add_new_arrays(struct mdstat_ent *mdstat, struct state *statelist,
+ int test, struct alert_info *info)
+{
+ struct mdstat_ent *mse;
+ int new_found = 0;
+
+ for (mse=mdstat; mse; mse=mse->next)
+ if (mse->devnum != INT_MAX &&
+ (!mse->level || /* retrieve containers */
+ (strcmp(mse->level, "raid0") != 0 &&
+ strcmp(mse->level, "linear") != 0))
+ ) {
+ struct state *st = calloc(1, sizeof *st);
+ mdu_array_info_t array;
+ int fd;
+ if (st == NULL)
+ continue;
+ st->devname = strdup(get_md_name(mse->devnum));
+ if ((fd = open(st->devname, O_RDONLY)) < 0 ||
+ ioctl(fd, GET_ARRAY_INFO, &array)< 0) {
+ /* no such array */
+ if (fd >=0) close(fd);
+ put_md_name(st->devname);
+ free(st->devname);
+ if (st->metadata) {
+ st->metadata->ss->free_super(st->metadata);
+ free(st->metadata);
+ }
+ free(st);
+ continue;
+ }
+ close(fd);
+ st->next = statelist;
+ st->err = 1;
+ st->devnum = mse->devnum;
+ st->percent = -2;
+ st->expected_spares = -1;
+ if (strncmp(mse->metadata_version, "external:", 9) == 0 &&
+ is_subarray(mse->metadata_version+9))
+ st->parent_dev =
+ devname2devnum(mse->metadata_version+10);
+ else
+ st->parent_dev = NoMdDev;
+ statelist = st;
+ if (test)
+ alert("TestMessage", st->devname, NULL, info);
+ alert("NewArray", st->devname, NULL, info);
+ new_found = 1;
+ }
+ return new_found;
+}
+
+unsigned long long min_spare_size_required(struct state *st)
+{
+ int fd;
+ unsigned long long rv = 0;
+
+ if (!st->metadata ||
+ !st->metadata->ss->min_acceptable_spare_size)
+ return rv;
+
+ fd = open(st->devname, O_RDONLY);
+ if (fd < 0)
+ return 0;
+ st->metadata->ss->load_super(st->metadata, fd, st->devname);
+ close(fd);
+ rv = st->metadata->ss->min_acceptable_spare_size(st->metadata);
+ st->metadata->ss->free_super(st->metadata);
+
+ return rv;
+}
+
+static int move_spare(struct state *from, struct state *to,
+ dev_t devid,
+ struct alert_info *info)
+{
+ struct mddev_dev devlist;
+ char devname[20];
+
+ /* try to remove and add */
+ int fd1 = open(to->devname, O_RDONLY);
+ int fd2 = open(from->devname, O_RDONLY);
+
+ if (fd1 < 0 || fd2 < 0) {
+ if (fd1>=0) close(fd1);
+ if (fd2>=0) close(fd2);
+ return 0;
+ }
+
+ devlist.next = NULL;
+ devlist.used = 0;
+ devlist.re_add = 0;
+ devlist.writemostly = 0;
+ devlist.devname = devname;
+ sprintf(devname, "%d:%d", major(devid), minor(devid));
+
+ devlist.disposition = 'r';
+ if (Manage_subdevs(from->devname, fd2, &devlist, -1, 0) == 0) {
+ devlist.disposition = 'a';
+ if (Manage_subdevs(to->devname, fd1, &devlist, -1, 0) == 0) {
+ alert("MoveSpare", to->devname, from->devname, info);
+ close(fd1);
+ close(fd2);
+ return 1;
+ }
+ else Manage_subdevs(from->devname, fd2, &devlist, -1, 0);
+ }
+ close(fd1);
+ close(fd2);
+ return 0;
+}
+
+static int check_donor(struct state *from, struct state *to,
+ struct domainlist *domlist)
+{
+ struct state *sub;
+
+ if (from == to)
+ return 0;
+ if (from->parent)
+ /* Cannot move from a member */
+ return 0;
+ if (from->err)
+ return 0;
+ for (sub = from->subarray; sub; sub = sub->subarray)
+ /* If source array has degraded subarrays, don't
+ * remove anything
+ */
+ if (sub->active < sub->raid)
+ return 0;
+ if (from->metadata->ss->external == 0)
+ if (from->active < from->raid)
+ return 0;
+ if (from->spare <= 0)
+ return 0;
+ if (domlist == NULL)
+ return 0;
+ return 1;
+}
+
+static dev_t choose_spare(struct state *from, struct state *to,
+ struct domainlist *domlist)
+{
+ int d;
+ dev_t dev = 0;
+ unsigned long long min_size
+ = min_spare_size_required(to);
+
+ for (d = from->raid; !dev && d < MaxDisks; d++) {
+ if (from->devid[d] > 0 &&
+ from->devstate[d] == 0) {
+ struct dev_policy *pol;
+ unsigned long long dev_size;
+
+ if (min_size &&
+ dev_size_from_id(from->devid[d], &dev_size) &&
+ dev_size < min_size)
+ continue;
+
+ pol = devnum_policy(from->devid[d]);
+ if (from->spare_group)
+ pol_add(&pol, pol_domain,
+ from->spare_group, NULL);
+ if (domain_test(domlist, pol, to->metadata->ss->name))
+ dev = from->devid[d];
+ dev_policy_free(pol);
+ }