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Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r--include/linux/blk-mq.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 779fba613bd0..de0b0c3e7395 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -228,6 +228,12 @@ static inline unsigned short req_get_ioprio(struct request *req)
*(listptr) = rq; \
} while (0)
+#define rq_list_add_tail(lastpptr, rq) do { \
+ (rq)->rq_next = NULL; \
+ **(lastpptr) = rq; \
+ *(lastpptr) = &rq->rq_next; \
+} while (0)
+
#define rq_list_pop(listptr) \
({ \
struct request *__req = NULL; \
@@ -473,6 +479,7 @@ enum hctx_type {
/**
* struct blk_mq_tag_set - tag set that can be shared between request queues
+ * @ops: Pointers to functions that implement block driver behavior.
* @map: One or more ctx -> hctx mappings. One map exists for each
* hardware queue type (enum hctx_type) that the driver wishes
* to support. There are no restrictions on maps being of the
@@ -480,7 +487,6 @@ enum hctx_type {
* types.
* @nr_maps: Number of elements in the @map array. A number in the range
* [1, HCTX_MAX_TYPES].
- * @ops: Pointers to functions that implement block driver behavior.
* @nr_hw_queues: Number of hardware queues supported by the block driver that
* owns this data structure.
* @queue_depth: Number of tags per hardware queue, reserved tags included.
@@ -505,9 +511,9 @@ enum hctx_type {
* (BLK_MQ_F_BLOCKING).
*/
struct blk_mq_tag_set {
+ const struct blk_mq_ops *ops;
struct blk_mq_queue_map map[HCTX_MAX_TYPES];
unsigned int nr_maps;
- const struct blk_mq_ops *ops;
unsigned int nr_hw_queues;
unsigned int queue_depth;
unsigned int reserved_tags;