The metadata update code during spare activation is moved to a separate
function for clarity of code, as a prework for the next patch fixing
the bug.
Signed-off-by: Lukasz Orlowski <lukasz.orlowski@xxxxxxxxx>
---
super-intel.c | 195 ++++++++++++++++++++++++++++++---------------------------
1 files changed, 102 insertions(+), 93 deletions(-)
diff --git a/super-intel.c b/super-intel.c
index dfa85aa..c669135 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -6982,6 +6982,106 @@ error_disk_add:
return ret_val;
}
+static int apply_update_activate_spare(struct imsm_update_activate_spare *u,
+ struct intel_super *super, struct active_array *active_array) {
+ struct imsm_super *mpb = super->anchor;
+ struct imsm_dev *dev = get_imsm_dev(super, u->array);
+ struct imsm_map *map = get_imsm_map(dev, 0);
+ struct imsm_map *migr_map;
+ struct active_array *a;
+ struct imsm_disk *disk;
+ __u8 to_state;
+ struct dl *dl;
+ unsigned int found;
+ int failed;
+ int victim = get_imsm_disk_idx(dev, u->slot, -1);
+ int i;
+
+ for (dl = super->disks; dl; dl = dl->next)
+ if (dl == u->dl)
+ break;
+
+ if (!dl) {
+ fprintf(stderr, "error: imsm_activate_spare passed "
+ "an unknown disk (index: %d)\n",
+ u->dl->index);
+ return 0;
+ }
+
+ /* count failures (excluding rebuilds and the victim)
+ * to determine map[0] state
+ */
+ failed = 0;
+ for (i = 0; i < map->num_members; i++) {
+ if (i == u->slot)
+ continue;
+ disk = get_imsm_disk(super,
+ get_imsm_disk_idx(dev, i, -1));
+ if (!disk || is_failed(disk))
+ failed++;
+ }
+
+ /* adding a pristine spare, assign a new index */
+ if (dl->index < 0) {
+ dl->index = super->anchor->num_disks;
+ super->anchor->num_disks++;
+ }
+ disk = &dl->disk;
+ disk->status |= CONFIGURED_DISK;
+ disk->status &= ~SPARE_DISK;
+
+ /* mark rebuild */
+ to_state = imsm_check_degraded(super, dev, failed);
+ map->map_state = IMSM_T_STATE_DEGRADED;
+ migrate(dev, super, to_state, MIGR_REBUILD);
+ migr_map = get_imsm_map(dev, 1);
+ set_imsm_ord_tbl_ent(map, u->slot, dl->index);
+ set_imsm_ord_tbl_ent(migr_map, u->slot,
+ dl->index | IMSM_ORD_REBUILD);
+
+ /* update the family_num to mark a new container
+ * generation, being careful to record the existing
+ * family_num in orig_family_num to clean up after
+ * earlier mdadm versions that neglected to set it.
+ */
+ if (mpb->orig_family_num == 0)
+ mpb->orig_family_num = mpb->family_num;
+ mpb->family_num += super->random;
+
+ /* count arrays using the victim in the metadata */
+ found = 0;
+ for (a = active_array; a ; a = a->next) {
+ dev = get_imsm_dev(super, a->info.container_member);
+ map = get_imsm_map(dev, 0);
+
+ if (get_imsm_disk_slot(map, victim) >= 0)
+ found++;
+ }
+
+ /* delete the victim if it is no longer being
+ * utilized anywhere
+ */
+ if (!found) {
+ struct dl **dlp;
+
+ /* We know that 'manager' isn't touching anything,
+ * so it is safe to delete
+ */
+ for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next)
+ if ((*dlp)->index == victim)
+ break;
+
+ /* victim may be on the missing list */
+ if (!*dlp)
+ for (dlp = &super->missing; *dlp;
+ dlp = &(*dlp)->next)
+ if ((*dlp)->index == victim)
+ break;
+ imsm_delete(super, dlp, victim);
+ }
+
+ return 1;
+}
static int apply_reshape_container_disks_update(struct imsm_update_reshape *u,
struct intel_super *super,
@@ -7276,99 +7376,8 @@ static void imsm_process_update(struct supertype *st,
}
case update_activate_spare: {
struct imsm_update_activate_spare *u = (void *) update->buf;
- struct imsm_dev *dev = get_imsm_dev(super, u->array);
- struct imsm_map *map = get_imsm_map(dev, 0);
- struct imsm_map *migr_map;
- struct active_array *a;
- struct imsm_disk *disk;
- __u8 to_state;
- struct dl *dl;
- unsigned int found;
- int failed;
- int victim = get_imsm_disk_idx(dev, u->slot, -1);
- int i;
-
- for (dl = super->disks; dl; dl = dl->next)
- if (dl == u->dl)
- break;
-
- if (!dl) {
- fprintf(stderr, "error: imsm_activate_spare passed "
- "an unknown disk (index: %d)\n",
- u->dl->index);
- return;
- }
-
- super->updates_pending++;
- /* count failures (excluding rebuilds and the victim)
- * to determine map[0] state
- */
- failed = 0;
- for (i = 0; i < map->num_members; i++) {
- if (i == u->slot)
- continue;
- disk = get_imsm_disk(super,
- get_imsm_disk_idx(dev, i, -1));
- if (!disk || is_failed(disk))
- failed++;
- }
-
- /* adding a pristine spare, assign a new index */
- if (dl->index < 0) {
- dl->index = super->anchor->num_disks;
- super->anchor->num_disks++;
- }
- disk = &dl->disk;
- disk->status |= CONFIGURED_DISK;
- disk->status &= ~SPARE_DISK;
-
- /* mark rebuild */
- to_state = imsm_check_degraded(super, dev, failed);
- map->map_state = IMSM_T_STATE_DEGRADED;
- migrate(dev, super, to_state, MIGR_REBUILD);
- migr_map = get_imsm_map(dev, 1);
- set_imsm_ord_tbl_ent(map, u->slot, dl->index);
- set_imsm_ord_tbl_ent(migr_map, u->slot, dl->index | IMSM_ORD_REBUILD);
-
- /* update the family_num to mark a new container
- * generation, being careful to record the existing
- * family_num in orig_family_num to clean up after
- * earlier mdadm versions that neglected to set it.
- */
- if (mpb->orig_family_num == 0)
- mpb->orig_family_num = mpb->family_num;
- mpb->family_num += super->random;
-
- /* count arrays using the victim in the metadata */
- found = 0;
- for (a = st->arrays; a ; a = a->next) {
- dev = get_imsm_dev(super, a->info.container_member);
- map = get_imsm_map(dev, 0);
-
- if (get_imsm_disk_slot(map, victim) >= 0)
- found++;
- }
-
- /* delete the victim if it is no longer being
- * utilized anywhere
- */
- if (!found) {
- struct dl **dlp;
-
- /* We know that 'manager' isn't touching anything,
- * so it is safe to delete
- */
- for (dlp = &super->disks; *dlp; dlp = &(*dlp)->next)
- if ((*dlp)->index == victim)
- break;
-
- /* victim may be on the missing list */
- if (!*dlp)
- for (dlp = &super->missing; *dlp; dlp = &(*dlp)->next)
- if ((*dlp)->index == victim)
- break;
- imsm_delete(super, dlp, victim);
- }
+ if (apply_update_activate_spare(u, super, st->arrays))
+ super->updates_pending++;
break;
}
case update_create_array: {
---------------------------------------------------------------------
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