When second array reshape is about to start metadata should be update
by mdmon in imsm_set_array_state().
Signed-off-by: Adam Kwolek <adam.kwolek@xxxxxxxxx>
---
super-intel.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 77 insertions(+), 0 deletions(-)
diff --git a/super-intel.c b/super-intel.c
index 72b6cf5..0f10e32 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -5002,6 +5002,83 @@ static int imsm_set_array_state(struct active_array *a, int consistent)
for (mdi = a->info.devs; mdi; mdi = mdi->next)
imsm_set_disk(a, mdi->disk.raid_disk, mdi->curr_state);
+ } else if (dev->vol.migr_state == 0) {
+ /* check here if this is container action
+ * and next metadata should be prepared
+ */
+ struct active_array *aa = a->container->arrays;
+ int arrays_under_reshape = 0;
+
+ /* check if no other arrays is under reshape
+ */
+ while (aa) {
+ if (aa->container) {
+ int inst = aa->info.container_member;
+ struct intel_super *super = aa->container->sb;
+ struct imsm_dev *dev =
+ get_imsm_dev(super, inst);
+ struct imsm_map *map2 = get_imsm_map(dev, 1);
+
+ if (map2)
+ arrays_under_reshape++;
+ }
+ aa = aa->next;
+ }
+ if (arrays_under_reshape == 0) {
+ struct imsm_map *map = get_imsm_map(dev, 0);
+ struct dl *dl = NULL;
+ int disks_count = 0;
+
+ /* check if this array should be reshaped
+ */
+ for (dl = super->disks; dl; dl = dl->next)
+ if (dl->index >= 0)
+ disks_count++;
+ if (disks_count > map->num_members) {
+ /* manage changes in volume
+ */
+ struct imsm_map *map, *map2;
+ int prev_num_members;
+ int used_disks;
+ int i;
+
+ map = get_imsm_map(dev, 0);
+ prev_num_members = map->num_members;
+ map->num_members = disks_count;
+ dev->vol.migr_state = 1;
+ dev->vol.curr_migr_unit = 0;
+ dev->vol.migr_type = MIGR_GEN_MIGR;
+ for (i = prev_num_members;
+ i < map->num_members; i++)
+ set_imsm_ord_tbl_ent(map, i, i);
+ map2 = get_imsm_map(dev, 1);
+ /* Copy the current map */
+ memcpy(map2, map, sizeof_imsm_map(map));
+ map2->num_members = prev_num_members;
+
+ /* calculate new size
+ */
+ used_disks = imsm_num_data_members(dev, 0);
+ if (used_disks) {
+ unsigned long long array_blocks;
+
+ array_blocks =
+ map->blocks_per_member
+ * used_disks;
+ /* round array size down to closest MB
+ */
+ array_blocks = (array_blocks
+ >> SECT_PER_MB_SHIFT)
+ << SECT_PER_MB_SHIFT;
+ dev->size_low =
+ __cpu_to_le32((__u32)array_blocks);
+ dev->size_high =
+ __cpu_to_le32(
+ (__u32)(array_blocks >> 32));
+ }
+ super->updates_pending++;
+ }
+ }
}
return consistent;
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
