return (remainder < rv) ? remainder : rv;
}
-/*
- * Return minimum size of a spare and sector size
- * that can be used in this array
- */
-int get_spare_criteria_imsm(struct supertype *st, struct spare_criteria *c)
-{
- struct intel_super *super = st->sb;
- struct dl *dl;
- struct extent *e;
- int i;
- unsigned long long size = 0;
-
- c->min_size = 0;
- c->sector_size = 0;
-
- if (!super)
- return -EINVAL;
- /* find first active disk in array */
- dl = super->disks;
- while (dl && (is_failed(&dl->disk) || dl->index == -1))
- dl = dl->next;
- if (!dl)
- return -EINVAL;
- /* find last lba used by subarrays */
- e = get_extents(super, dl, 0);
- if (!e)
- return -EINVAL;
- for (i = 0; e[i].size; i++)
- continue;
- if (i > 0)
- size = e[i-1].start + e[i-1].size;
- free(e);
-
- /* add the amount of space needed for metadata */
- size += imsm_min_reserved_sectors(super);
-
- c->min_size = size * 512;
- c->sector_size = super->sector_size;
-
- return 0;
-}
-
static bool is_gen_migration(struct imsm_dev *dev);
#define IMSM_4K_DIV 8
struct intel_super *super = st->sb;
struct imsm_disk *disk;
int map_disks = info->array.raid_disks;
+ int max_enough = -1;
int i;
struct imsm_super *mpb;
for (i = 0; i < mpb->num_raid_devs; i++) {
struct imsm_dev *dev = get_imsm_dev(super, i);
- int j = 0;
+ int failed, enough, j, missing = 0;
struct imsm_map *map;
+ __u8 state;
+ failed = imsm_count_failed(super, dev, MAP_0);
+ state = imsm_check_degraded(super, dev, failed, MAP_0);
map = get_imsm_map(dev, MAP_0);
/* any newly missing disks?
if (!(ord & IMSM_ORD_REBUILD) &&
get_imsm_missing(super, idx)) {
+ missing = 1;
break;
}
}
+
+ if (state == IMSM_T_STATE_FAILED)
+ enough = -1;
+ else if (state == IMSM_T_STATE_DEGRADED &&
+ (state != map->map_state || missing))
+ enough = 0;
+ else /* we're normal, or already degraded */
+ enough = 1;
+ if (is_gen_migration(dev) && missing) {
+ /* during general migration we need all disks
+ * that process is running on.
+ * No new missing disk is allowed.
+ */
+ max_enough = -1;
+ enough = -1;
+ /* no more checks necessary
+ */
+ break;
+ }
+ /* in the missing/failed disk case check to see
+ * if at least one array is runnable
+ */
+ max_enough = max(max_enough, enough);
}
+ info->container_enough = max_enough;
+
if (super->disks) {
__u32 reserved = imsm_reserved_sectors(super, super->disks);
memset(buf, 0, sizeof(buf));
+ if (check_env("IMSM_DEVNAME_AS_SERIAL")) {
+ memset(serial, 0, serial_buf_len);
+ fd2devname(fd, (char *) serial);
+ return 0;
+ }
+
rv = nvme_get_serial(fd, buf, sizeof(buf));
if (rv)
rv = scsi_get_serial(fd, buf, sizeof(buf));
- if (rv && check_env("IMSM_DEVNAME_AS_SERIAL")) {
- memset(serial, 0, MAX_RAID_SERIAL_LEN);
- fd2devname(fd, (char *) serial);
- return 0;
- }
-
if (rv != 0) {
if (devname)
pr_err("Failed to retrieve serial for %s\n",
super->updates_pending++;
}
+ if (a->prev_action == idle)
+ goto skip_mark_checkpoint;
+
mark_checkpoint:
/* skip checkpointing for general migration,
* it is controlled in mdadm
return drv;
}
+/**
+ * get_spare_criteria_imsm() - set spare criteria.
+ * @st: supertype.
+ * @mddev_path: path to md device devnode, it must be container.
+ * @c: spare_criteria struct to fill, not NULL.
+ *
+ * If superblock is not loaded, use mddev_path to load_container. It must be given in this case.
+ * Filles size and sector size accordingly to superblock.
+ */
+mdadm_status_t get_spare_criteria_imsm(struct supertype *st, char *mddev_path,
+ struct spare_criteria *c)
+{
+ mdadm_status_t ret = MDADM_STATUS_ERROR;
+ bool free_superblock = false;
+ unsigned long long size = 0;
+ struct intel_super *super;
+ struct extent *e;
+ struct dl *dl;
+ int i;
+
+ /* If no superblock and no mddev_path, we cannot load superblock. */
+ assert(st->sb || mddev_path);
+
+ if (mddev_path) {
+ int fd = open(mddev_path, O_RDONLY);
+
+ if (!is_fd_valid(fd))
+ return MDADM_STATUS_ERROR;
+
+ if (!st->sb) {
+ if (load_container_imsm(st, fd, st->devnm)) {
+ close(fd);
+ return MDADM_STATUS_ERROR;
+ }
+ free_superblock = true;
+ }
+ close(fd);
+ }
+
+ super = st->sb;
+
+ /* find first active disk in array */
+ dl = super->disks;
+ while (dl && (is_failed(&dl->disk) || dl->index == -1))
+ dl = dl->next;
+
+ if (!dl)
+ goto out;
+
+ /* find last lba used by subarrays */
+ e = get_extents(super, dl, 0);
+ if (!e)
+ goto out;
+
+ for (i = 0; e[i].size; i++)
+ continue;
+ if (i > 0)
+ size = e[i - 1].start + e[i - 1].size;
+ free(e);
+
+ /* add the amount of space needed for metadata */
+ size += imsm_min_reserved_sectors(super);
+
+ c->min_size = size * 512;
+ c->sector_size = super->sector_size;
+ c->criteria_set = true;
+ ret = MDADM_STATUS_SUCCESS;
+
+out:
+ if (free_superblock)
+ free_super_imsm(st);
+
+ if (ret != MDADM_STATUS_SUCCESS)
+ c->criteria_set = false;
+
+ return ret;
+}
+
static char *imsm_find_array_devnm_by_subdev(int subdev, char *container)
{
static char devnm[32];
{
struct spare_criteria sc;
- get_spare_criteria_imsm(st, &sc);
+ get_spare_criteria_imsm(st, NULL, &sc);
return container_choose_spares(st, &sc, NULL, NULL, NULL, 0);
}
projects / thirdparty / mdadm.git / blobdiff