block: remove the cmd_size field from struct request_queue

Entirely unused.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210920123328.1399408-11-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 9e36750..6737e48 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -544,8 +544,6 @@ struct request_queue {
 
        bool                    mq_sysfs_init_done;
 
-       size_t                  cmd_size;
-
 #define BLK_MAX_WRITE_HINTS    5
        u64                     write_hints[BLK_MAX_WRITE_HINTS];
 };