diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/raid5.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f34ddadd4e29..35f0317f0717 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1459,6 +1459,7 @@ ops_run_compute5(struct stripe_head *sh, struct raid5_percpu *percpu) /* set_syndrome_sources - populate source buffers for gen_syndrome * @srcs - (struct page *) array of size sh->disks + * @offs - (unsigned int) array of offset for each page * @sh - stripe_head to parse * * Populates srcs in proper layout order for the stripe and returns the @@ -1467,6 +1468,7 @@ ops_run_compute5(struct stripe_head *sh, struct raid5_percpu *percpu) * is recorded in srcs[count+1]]. */ static int set_syndrome_sources(struct page **srcs, + unsigned int *offs, struct stripe_head *sh, int srctype) { @@ -1497,6 +1499,12 @@ static int set_syndrome_sources(struct page **srcs, srcs[slot] = sh->dev[i].orig_page; else srcs[slot] = sh->dev[i].page; + /* + * For R5_InJournal, PAGE_SIZE must be 4KB and will + * not shared page. In that case, dev[i].offset + * is 0. + */ + offs[slot] = sh->dev[i].offset; } i = raid6_next_disk(i, disks); } while (i != d0_idx); @@ -1540,13 +1548,13 @@ ops_run_compute6_1(struct stripe_head *sh, struct raid5_percpu *percpu) atomic_inc(&sh->count); if (target == qd_idx) { - count = set_syndrome_sources(blocks, sh, SYNDROME_SRC_ALL); + count = set_syndrome_sources(blocks, offs, sh, SYNDROME_SRC_ALL); blocks[count] = NULL; /* regenerating p is not necessary */ BUG_ON(blocks[count+1] != dest); /* q should already be set */ init_async_submit(&submit, ASYNC_TX_FENCE, NULL, ops_complete_compute, sh, to_addr_conv(sh, percpu, 0)); - tx = async_gen_syndrome(blocks, 0, count+2, + tx = async_gen_syndrome(blocks, offs, count+2, RAID5_STRIPE_SIZE(sh->raid_conf), &submit); } else { /* Compute any data- or p-drive using XOR */ @@ -1628,7 +1636,7 @@ ops_run_compute6_2(struct stripe_head *sh, struct raid5_percpu *percpu) init_async_submit(&submit, ASYNC_TX_FENCE, NULL, ops_complete_compute, sh, to_addr_conv(sh, percpu, 0)); - return async_gen_syndrome(blocks, 0, syndrome_disks+2, + return async_gen_syndrome(blocks, offs, syndrome_disks+2, RAID5_STRIPE_SIZE(sh->raid_conf), &submit); } else { @@ -1660,11 +1668,11 @@ ops_run_compute6_2(struct stripe_head *sh, struct raid5_percpu *percpu) RAID5_STRIPE_SIZE(sh->raid_conf), &submit); - count = set_syndrome_sources(blocks, sh, SYNDROME_SRC_ALL); + count = set_syndrome_sources(blocks, offs, sh, SYNDROME_SRC_ALL); init_async_submit(&submit, ASYNC_TX_FENCE, tx, ops_complete_compute, sh, to_addr_conv(sh, percpu, 0)); - return async_gen_syndrome(blocks, 0, count+2, + return async_gen_syndrome(blocks, offs, count+2, RAID5_STRIPE_SIZE(sh->raid_conf), &submit); } @@ -1750,17 +1758,18 @@ ops_run_prexor6(struct stripe_head *sh, struct raid5_percpu *percpu, struct dma_async_tx_descriptor *tx) { struct page **blocks = to_addr_page(percpu, 0); + unsigned int *offs = to_addr_offs(sh, percpu); int count; struct async_submit_ctl submit; pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); - count = set_syndrome_sources(blocks, sh, SYNDROME_SRC_WANT_DRAIN); + count = set_syndrome_sources(blocks, offs, sh, SYNDROME_SRC_WANT_DRAIN); init_async_submit(&submit, ASYNC_TX_FENCE|ASYNC_TX_PQ_XOR_DST, tx, ops_complete_prexor, sh, to_addr_conv(sh, percpu, 0)); - tx = async_gen_syndrome(blocks, 0, count+2, + tx = async_gen_syndrome(blocks, offs, count+2, RAID5_STRIPE_SIZE(sh->raid_conf), &submit); return tx; @@ -1989,6 +1998,7 @@ ops_run_reconstruct6(struct stripe_head *sh, struct raid5_percpu *percpu, { struct async_submit_ctl submit; struct page **blocks; + unsigned int *offs; int count, i, j = 0; struct stripe_head *head_sh = sh; int last_stripe; @@ -2013,6 +2023,7 @@ ops_run_reconstruct6(struct stripe_head *sh, struct raid5_percpu *percpu, again: blocks = to_addr_page(percpu, j); + offs = to_addr_offs(sh, percpu); if (sh->reconstruct_state == reconstruct_state_prexor_drain_run) { synflags = SYNDROME_SRC_WRITTEN; @@ -2022,7 +2033,7 @@ again: txflags = ASYNC_TX_ACK; } - count = set_syndrome_sources(blocks, sh, synflags); + count = set_syndrome_sources(blocks, offs, sh, synflags); last_stripe = !head_sh->batch_head || list_first_entry(&sh->batch_list, struct stripe_head, batch_list) == head_sh; @@ -2034,7 +2045,7 @@ again: } else init_async_submit(&submit, 0, tx, NULL, NULL, to_addr_conv(sh, percpu, j)); - tx = async_gen_syndrome(blocks, 0, count+2, + tx = async_gen_syndrome(blocks, offs, count+2, RAID5_STRIPE_SIZE(sh->raid_conf), &submit); if (!last_stripe) { j++; @@ -2100,6 +2111,7 @@ static void ops_run_check_p(struct stripe_head *sh, struct raid5_percpu *percpu) static void ops_run_check_pq(struct stripe_head *sh, struct raid5_percpu *percpu, int checkp) { struct page **srcs = to_addr_page(percpu, 0); + unsigned int *offs = to_addr_offs(sh, percpu); struct async_submit_ctl submit; int count; @@ -2107,16 +2119,16 @@ static void ops_run_check_pq(struct stripe_head *sh, struct raid5_percpu *percpu (unsigned long long)sh->sector, checkp); BUG_ON(sh->batch_head); - count = set_syndrome_sources(srcs, sh, SYNDROME_SRC_ALL); + count = set_syndrome_sources(srcs, offs, sh, SYNDROME_SRC_ALL); if (!checkp) srcs[count] = NULL; atomic_inc(&sh->count); init_async_submit(&submit, ASYNC_TX_ACK, NULL, ops_complete_check, sh, to_addr_conv(sh, percpu, 0)); - async_syndrome_val(srcs, 0, count+2, + async_syndrome_val(srcs, offs, count+2, RAID5_STRIPE_SIZE(sh->raid_conf), - &sh->ops.zero_sum_result, percpu->spare_page, &submit); + &sh->ops.zero_sum_result, percpu->spare_page, 0, &submit); } static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) |