diff options
Diffstat (limited to 'drivers/md/md-cluster.c')
| -rw-r--r-- | drivers/md/md-cluster.c | 65 |
1 files changed, 43 insertions, 22 deletions
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index 021cbf9ef1bf..94329e03001e 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -304,15 +304,6 @@ static void recover_bitmaps(struct md_thread *thread) while (cinfo->recovery_map) { slot = fls64((u64)cinfo->recovery_map) - 1; - /* Clear suspend_area associated with the bitmap */ - spin_lock_irq(&cinfo->suspend_lock); - list_for_each_entry_safe(s, tmp, &cinfo->suspend_list, list) - if (slot == s->slot) { - list_del(&s->list); - kfree(s); - } - spin_unlock_irq(&cinfo->suspend_lock); - snprintf(str, 64, "bitmap%04d", slot); bm_lockres = lockres_init(mddev, str, NULL, 1); if (!bm_lockres) { @@ -326,19 +317,35 @@ static void recover_bitmaps(struct md_thread *thread) str, ret); goto clear_bit; } - ret = bitmap_copy_from_slot(mddev, slot, &lo, &hi, true); + ret = md_bitmap_copy_from_slot(mddev, slot, &lo, &hi, true); if (ret) { pr_err("md-cluster: Could not copy data from bitmap %d\n", slot); goto clear_bit; } + + /* Clear suspend_area associated with the bitmap */ + spin_lock_irq(&cinfo->suspend_lock); + list_for_each_entry_safe(s, tmp, &cinfo->suspend_list, list) + if (slot == s->slot) { + list_del(&s->list); + kfree(s); + } + spin_unlock_irq(&cinfo->suspend_lock); + if (hi > 0) { if (lo < mddev->recovery_cp) mddev->recovery_cp = lo; /* wake up thread to continue resync in case resync * is not finished */ if (mddev->recovery_cp != MaxSector) { - set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); - md_wakeup_thread(mddev->thread); + /* + * clear the REMOTE flag since we will launch + * resync thread in current node. + */ + clear_bit(MD_RESYNCING_REMOTE, + &mddev->recovery); + set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); + md_wakeup_thread(mddev->thread); } } clear_bit: @@ -457,6 +464,11 @@ static void process_suspend_info(struct mddev *mddev, struct suspend_info *s; if (!hi) { + /* + * clear the REMOTE flag since resync or recovery is finished + * in remote node. + */ + clear_bit(MD_RESYNCING_REMOTE, &mddev->recovery); remove_suspend_info(mddev, slot); set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); @@ -480,9 +492,7 @@ static void process_suspend_info(struct mddev *mddev, * resync thread is running in another node, * so we don't need to do the resync again * with the same section */ - bitmap_sync_with_cluster(mddev, cinfo->sync_low, - cinfo->sync_hi, - lo, hi); + md_bitmap_sync_with_cluster(mddev, cinfo->sync_low, cinfo->sync_hi, lo, hi); cinfo->sync_low = lo; cinfo->sync_hi = hi; @@ -585,6 +595,7 @@ static int process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) revalidate_disk(mddev->gendisk); break; case RESYNCING: + set_bit(MD_RESYNCING_REMOTE, &mddev->recovery); process_suspend_info(mddev, le32_to_cpu(msg->slot), le64_to_cpu(msg->low), le64_to_cpu(msg->high)); @@ -829,7 +840,7 @@ static int gather_all_resync_info(struct mddev *mddev, int total_slots) } /* Read the disk bitmap sb and check if it needs recovery */ - ret = bitmap_copy_from_slot(mddev, i, &lo, &hi, false); + ret = md_bitmap_copy_from_slot(mddev, i, &lo, &hi, false); if (ret) { pr_warn("md-cluster: Could not gather bitmaps from slot %d", i); lockres_free(bm_lockres); @@ -1127,13 +1138,13 @@ static int cluster_check_sync_size(struct mddev *mddev) bm_lockres = lockres_init(mddev, str, NULL, 1); if (!bm_lockres) { pr_err("md-cluster: Cannot initialize %s\n", str); - bitmap_free(bitmap); + md_bitmap_free(bitmap); return -1; } bm_lockres->flags |= DLM_LKF_NOQUEUE; rv = dlm_lock_sync(bm_lockres, DLM_LOCK_PW); if (!rv) - bitmap_update_sb(bitmap); + md_bitmap_update_sb(bitmap); lockres_free(bm_lockres); sb = kmap_atomic(bitmap->storage.sb_page); @@ -1141,11 +1152,11 @@ static int cluster_check_sync_size(struct mddev *mddev) sync_size = sb->sync_size; else if (sync_size != sb->sync_size) { kunmap_atomic(sb); - bitmap_free(bitmap); + md_bitmap_free(bitmap); return -1; } kunmap_atomic(sb); - bitmap_free(bitmap); + md_bitmap_free(bitmap); } return (my_sync_size == sync_size) ? 0 : -1; @@ -1265,8 +1276,18 @@ static int resync_info_update(struct mddev *mddev, sector_t lo, sector_t hi) static int resync_finish(struct mddev *mddev) { struct md_cluster_info *cinfo = mddev->cluster_info; + + clear_bit(MD_RESYNCING_REMOTE, &mddev->recovery); dlm_unlock_sync(cinfo->resync_lockres); - return resync_info_update(mddev, 0, 0); + + /* + * If resync thread is interrupted so we can't say resync is finished, + * another node will launch resync thread to continue. + */ + if (test_bit(MD_CLOSING, &mddev->flags)) + return 0; + else + return resync_info_update(mddev, 0, 0); } static int area_resyncing(struct mddev *mddev, int direction, @@ -1442,7 +1463,7 @@ static int gather_bitmaps(struct md_rdev *rdev) for (sn = 0; sn < mddev->bitmap_info.nodes; sn++) { if (sn == (cinfo->slot_number - 1)) continue; - err = bitmap_copy_from_slot(mddev, sn, &lo, &hi, false); + err = md_bitmap_copy_from_slot(mddev, sn, &lo, &hi, false); if (err) { pr_warn("md-cluster: Could not gather bitmaps from slot %d", sn); goto out; |