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block: remove struct request_queue queue_head

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The dispatch list is not used any more, as the legacy block IO stack
has been removed.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Junxiao Bi 2019-08-16 14:12:33 -07:00 committed by Jens Axboe
parent 6444f47eb8
commit 988721db93
2 changed files with 0 additions and 5 deletions
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1
block/blk-core.c
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@ -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);

4
include/linux/blkdev.h
View File

@ -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;