block: remove struct request_queue queue_head

The dispatch list is not used any more, as the legacy block IO stack has been removed. Reviewed-by: Bart Van Assche <[email protected]> Reviewed-by: Ming Lei <[email protected]> Signed-off-by: Junxiao Bi <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
niw · Aug 19, 2019 · 988721d · 988721d
1 parent 6444f47
commit 988721d
Showing 2 changed files with 0 additions and 5 deletions.
diff --git a/block/blk-core.c b/block/blk-core.c
@@ -482,7 +482,6 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 	if (!q)
 		return NULL;
 
-	INIT_LIST_HEAD(&q->queue_head);
 	q->last_merge = NULL;
 
 	q->id = ida_simple_get(&blk_queue_ida, 0, 0, gfp_mask);

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
@@ -391,10 +391,6 @@ static inline int blkdev_reset_zones_ioctl(struct block_device *bdev,
 #endif /* CONFIG_BLK_DEV_ZONED */
 
 struct request_queue {
-	/*
-	 * Together with queue_head for cacheline sharing
-	 */
-	struct list_head	queue_head;
 	struct request		*last_merge;
 	struct elevator_queue	*elevator;