block: remov blk_queue_invalidate_tags

This function is entirely unused, so remove it and the tag_queue_busy
member of struct request_queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 0 insertions, 2 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index fa6f11751430..9154570edf29 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -562,7 +562,6 @@ struct request_queue {
         unsigned int            dma_alignment;
 
         struct blk_queue_tag    *queue_tags;
-        struct list_head        tag_busy_list;
 
         unsigned int            nr_sorted;
         unsigned int            in_flight[2];
@@ -1375,7 +1374,6 @@ extern void blk_queue_end_tag(struct request_queue *, struct request *);
 extern int blk_queue_init_tags(struct request_queue *, int, struct blk_queue_tag *, int);
 extern void blk_queue_free_tags(struct request_queue *);
 extern int blk_queue_resize_tags(struct request_queue *, int);
-extern void blk_queue_invalidate_tags(struct request_queue *);
 extern struct blk_queue_tag *blk_init_tags(int, int);
 extern void blk_free_tags(struct blk_queue_tag *);