Merge tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

[linux.git] / block / blk-mq.h

diff --git a/block/blk-mq.h b/block/blk-mq.h
index b63a0de8a07a3272633c49a95ded223369cfae47..d943d46b078547e5f48d488575be5178fb0195e5 100644 (file)
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -18,8 +18,8 @@ struct blk_mq_ctxs {
 struct blk_mq_ctx {
        struct {
                spinlock_t              lock;
-               struct list_head        rq_list;
-       }  ____cacheline_aligned_in_smp;
+               struct list_head        rq_lists[HCTX_MAX_TYPES];
+       } ____cacheline_aligned_in_smp;
 
        unsigned int            cpu;
        unsigned short          index_hw[HCTX_MAX_TYPES];
@@ -105,14 +105,17 @@ static inline struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *q,
 {
        enum hctx_type type = HCTX_TYPE_DEFAULT;
 
-       if (q->tag_set->nr_maps > HCTX_TYPE_POLL &&
-           ((flags & REQ_HIPRI) && test_bit(QUEUE_FLAG_POLL, &q->queue_flags)))
+       if ((flags & REQ_HIPRI) &&
+           q->tag_set->nr_maps > HCTX_TYPE_POLL && 
+           q->tag_set->map[HCTX_TYPE_POLL].nr_queues &&
+           test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
                type = HCTX_TYPE_POLL;
 
-       else if (q->tag_set->nr_maps > HCTX_TYPE_READ &&
-                ((flags & REQ_OP_MASK) == REQ_OP_READ))
+       else if (((flags & REQ_OP_MASK) == REQ_OP_READ) &&
+                q->tag_set->nr_maps > HCTX_TYPE_READ &&
+                q->tag_set->map[HCTX_TYPE_READ].nr_queues)
                type = HCTX_TYPE_READ;
-
+       
        return blk_mq_map_queue_type(q, type, cpu);
 }