diff options
| -rw-r--r-- | drivers/md/raid5.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2aff4be35dc4..4d63773ee73a 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2541,7 +2541,7 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh, struct dma_async_tx_descriptor *tx = NULL; clear_bit(STRIPE_EXPAND_SOURCE, &sh->state); for (i = 0; i < sh->disks; i++) - if (i != sh->pd_idx && (r6s && i != r6s->qd_idx)) { + if (i != sh->pd_idx && (!r6s || i != r6s->qd_idx)) { int dd_idx, pd_idx, j; struct stripe_head *sh2; @@ -2574,7 +2574,8 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh, set_bit(R5_UPTODATE, &sh2->dev[dd_idx].flags); for (j = 0; j < conf->raid_disks; j++) if (j != sh2->pd_idx && - (r6s && j != r6s->qd_idx) && + (!r6s || j != raid6_next_disk(sh2->pd_idx, + sh2->disks)) && !test_bit(R5_Expanded, &sh2->dev[j].flags)) break; if (j == conf->raid_disks) { @@ -2583,12 +2584,12 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh, } release_stripe(sh2); - /* done submitting copies, wait for them to complete */ - if (i + 1 >= sh->disks) { - async_tx_ack(tx); - dma_wait_for_async_tx(tx); - } } + /* done submitting copies, wait for them to complete */ + if (tx) { + async_tx_ack(tx); + dma_wait_for_async_tx(tx); + } } /* @@ -2855,7 +2856,7 @@ static void handle_stripe5(struct stripe_head *sh) sh->disks = conf->raid_disks; sh->pd_idx = stripe_to_pdidx(sh->sector, conf, conf->raid_disks); - s.locked += handle_write_operations5(sh, 0, 1); + s.locked += handle_write_operations5(sh, 1, 1); } else if (s.expanded && !test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending)) { clear_bit(STRIPE_EXPAND_READY, &sh->state); |