On Tue, Jun 30, 2020 at 10:23:54AM +0800, Ming Lei wrote:

blk_mq_get_driver_tag() is only used by blk-mq.c and is supposed to
stay in blk-mq.c, so move it and preparing for cleanup code of
get/put driver tag.

Meantime hctx_may_queue() is moved to header file and it is fine
since it is defined as inline always.

hctx_may_queue looks pretty big for an inline function to start with.

But except for that this looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>