diff options
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 313f28b2d079..9c1c1544bac3 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -958,9 +958,10 @@ static bool flush_busy_ctx(struct sbitmap *sb, unsigned int bitnr, void *data) struct flush_busy_ctx_data *flush_data = data; struct blk_mq_hw_ctx *hctx = flush_data->hctx; struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; + enum hctx_type type = hctx->type; spin_lock(&ctx->lock); - list_splice_tail_init(&ctx->rq_list, flush_data->list); + list_splice_tail_init(&ctx->rq_lists[type], flush_data->list); sbitmap_clear_bit(sb, bitnr); spin_unlock(&ctx->lock); return true; @@ -992,12 +993,13 @@ static bool dispatch_rq_from_ctx(struct sbitmap *sb, unsigned int bitnr, struct dispatch_rq_data *dispatch_data = data; struct blk_mq_hw_ctx *hctx = dispatch_data->hctx; struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; + enum hctx_type type = hctx->type; spin_lock(&ctx->lock); - if (!list_empty(&ctx->rq_list)) { - dispatch_data->rq = list_entry_rq(ctx->rq_list.next); + if (!list_empty(&ctx->rq_lists[type])) { + dispatch_data->rq = list_entry_rq(ctx->rq_lists[type].next); list_del_init(&dispatch_data->rq->queuelist); - if (list_empty(&ctx->rq_list)) + if (list_empty(&ctx->rq_lists[type])) sbitmap_clear_bit(sb, bitnr); } spin_unlock(&ctx->lock); @@ -1608,15 +1610,16 @@ static inline void __blk_mq_insert_req_list(struct blk_mq_hw_ctx *hctx, bool at_head) { struct blk_mq_ctx *ctx = rq->mq_ctx; + enum hctx_type type = hctx->type; lockdep_assert_held(&ctx->lock); trace_block_rq_insert(hctx->queue, rq); if (at_head) - list_add(&rq->queuelist, &ctx->rq_list); + list_add(&rq->queuelist, &ctx->rq_lists[type]); else - list_add_tail(&rq->queuelist, &ctx->rq_list); + list_add_tail(&rq->queuelist, &ctx->rq_lists[type]); } void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, @@ -1651,6 +1654,7 @@ void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx, { struct request *rq; + enum hctx_type type = hctx->type; /* * preemption doesn't flush plug list, so it's possible ctx->cpu is @@ -1662,7 +1666,7 @@ void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx, } spin_lock(&ctx->lock); - list_splice_tail_init(list, &ctx->rq_list); + list_splice_tail_init(list, &ctx->rq_lists[type]); blk_mq_hctx_mark_pending(hctx, ctx); spin_unlock(&ctx->lock); } @@ -2200,13 +2204,15 @@ static int blk_mq_hctx_notify_dead(unsigned int cpu, struct hlist_node *node) struct blk_mq_hw_ctx *hctx; struct blk_mq_ctx *ctx; LIST_HEAD(tmp); + enum hctx_type type; hctx = hlist_entry_safe(node, struct blk_mq_hw_ctx, cpuhp_dead); ctx = __blk_mq_get_ctx(hctx->queue, cpu); + type = hctx->type; spin_lock(&ctx->lock); - if (!list_empty(&ctx->rq_list)) { - list_splice_init(&ctx->rq_list, &tmp); + if (!list_empty(&ctx->rq_lists[type])) { + list_splice_init(&ctx->rq_lists[type], &tmp); blk_mq_hctx_clear_pending(hctx, ctx); } spin_unlock(&ctx->lock); @@ -2343,10 +2349,13 @@ static void blk_mq_init_cpu_queues(struct request_queue *q, for_each_possible_cpu(i) { struct blk_mq_ctx *__ctx = per_cpu_ptr(q->queue_ctx, i); struct blk_mq_hw_ctx *hctx; + int k; __ctx->cpu = i; spin_lock_init(&__ctx->lock); - INIT_LIST_HEAD(&__ctx->rq_list); + for (k = HCTX_TYPE_DEFAULT; k < HCTX_MAX_TYPES; k++) + INIT_LIST_HEAD(&__ctx->rq_lists[k]); + __ctx->queue = q; /* |