diff options
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 80a67d789b72..e8c8157b02fc 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -688,7 +688,8 @@ ops_run_prexor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) } static struct dma_async_tx_descriptor * -ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) +ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, + unsigned long pending) { int disks = sh->disks; int pd_idx = sh->pd_idx, i; @@ -696,7 +697,7 @@ ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) /* check if prexor is active which means only process blocks * that are part of a read-modify-write (Wantprexor) */ - int prexor = test_bit(STRIPE_OP_PREXOR, &sh->ops.pending); + int prexor = test_bit(STRIPE_OP_PREXOR, &pending); pr_debug("%s: stripe %llu\n", __FUNCTION__, (unsigned long long)sh->sector); @@ -773,7 +774,8 @@ static void ops_complete_write(void *stripe_head_ref) } static void -ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) +ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, + unsigned long pending) { /* kernel stack size limits the total number of disks */ int disks = sh->disks; @@ -781,7 +783,7 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) int count = 0, pd_idx = sh->pd_idx, i; struct page *xor_dest; - int prexor = test_bit(STRIPE_OP_PREXOR, &sh->ops.pending); + int prexor = test_bit(STRIPE_OP_PREXOR, &pending); unsigned long flags; dma_async_tx_callback callback; @@ -808,7 +810,7 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) } /* check whether this postxor is part of a write */ - callback = test_bit(STRIPE_OP_BIODRAIN, &sh->ops.pending) ? + callback = test_bit(STRIPE_OP_BIODRAIN, &pending) ? ops_complete_write : ops_complete_postxor; /* 1/ if we prexor'd then the dest is reused as a source @@ -896,12 +898,12 @@ static void raid5_run_ops(struct stripe_head *sh, unsigned long pending) tx = ops_run_prexor(sh, tx); if (test_bit(STRIPE_OP_BIODRAIN, &pending)) { - tx = ops_run_biodrain(sh, tx); + tx = ops_run_biodrain(sh, tx, pending); overlap_clear++; } if (test_bit(STRIPE_OP_POSTXOR, &pending)) - ops_run_postxor(sh, tx); + ops_run_postxor(sh, tx, pending); if (test_bit(STRIPE_OP_CHECK, &pending)) ops_run_check(sh); @@ -2624,6 +2626,13 @@ static void handle_stripe5(struct stripe_head *sh) s.expanded = test_bit(STRIPE_EXPAND_READY, &sh->state); /* Now to look around and see what can be done */ + /* clean-up completed biofill operations */ + if (test_bit(STRIPE_OP_BIOFILL, &sh->ops.complete)) { + clear_bit(STRIPE_OP_BIOFILL, &sh->ops.pending); + clear_bit(STRIPE_OP_BIOFILL, &sh->ops.ack); + clear_bit(STRIPE_OP_BIOFILL, &sh->ops.complete); + } + rcu_read_lock(); for (i=disks; i--; ) { mdk_rdev_t *rdev; @@ -2856,7 +2865,8 @@ static void handle_stripe5(struct stripe_head *sh) md_done_sync(conf->mddev, STRIPE_SECTORS, 1); } - if (s.expanding && s.locked == 0) + if (s.expanding && s.locked == 0 && + !test_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.pending)) handle_stripe_expansion(conf, sh, NULL); if (sh->ops.count) @@ -2897,13 +2907,6 @@ static void handle_stripe6(struct stripe_head *sh, struct page *tmp_page) s.expanded = test_bit(STRIPE_EXPAND_READY, &sh->state); /* Now to look around and see what can be done */ - /* clean-up completed biofill operations */ - if (test_bit(STRIPE_OP_BIOFILL, &sh->ops.complete)) { - clear_bit(STRIPE_OP_BIOFILL, &sh->ops.pending); - clear_bit(STRIPE_OP_BIOFILL, &sh->ops.ack); - clear_bit(STRIPE_OP_BIOFILL, &sh->ops.complete); - } - rcu_read_lock(); for (i=disks; i--; ) { mdk_rdev_t *rdev; @@ -3065,7 +3068,8 @@ static void handle_stripe6(struct stripe_head *sh, struct page *tmp_page) md_done_sync(conf->mddev, STRIPE_SECTORS, 1); } - if (s.expanding && s.locked == 0) + if (s.expanding && s.locked == 0 && + !test_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.pending)) handle_stripe_expansion(conf, sh, &r6s); spin_unlock(&sh->lock); @@ -3186,8 +3190,7 @@ static void unplug_slaves(mddev_t *mddev) atomic_inc(&rdev->nr_pending); rcu_read_unlock(); - if (r_queue->unplug_fn) - r_queue->unplug_fn(r_queue); + blk_unplug(r_queue); rdev_dec_pending(rdev, mddev); rcu_read_lock(); |