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Commit 4bf58435 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

dm: remove incomplete BLOCK_PC support 



DM tries to copy a few fields around for BLOCK_PC requests, but given
that no dm-target ever wires up scsi_cmd_ioctl BLOCK_PC can't actually
be sent to dm.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 48b77ad6

drivers/md/dm-rq.c

+0 −16
Original line number Diff line number Diff line
@@ -270,19 +270,6 @@ static void dm_end_request(struct request *clone, int error) 
	struct mapped_device *md = tio->md;

	struct request *rq = tio->orig;



	if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {

		rq->errors = clone->errors;

		rq->resid_len = clone->resid_len;



		if (rq->sense)

			/*

			 * We are using the sense buffer of the original

			 * request.

			 * So setting the length of the sense data is enough.

			 */

			rq->sense_len = clone->sense_len;

	}



	free_rq_clone(clone);

	rq_end_stats(md, rq);

	if (!rq->q->mq_ops)
@@ -511,9 +498,6 @@ static int setup_clone(struct request *clone, struct request *rq, 
	if (r)

		return r;



	clone->cmd = rq->cmd;

	clone->cmd_len = rq->cmd_len;

	clone->sense = rq->sense;

	clone->end_io = end_clone_request;

	clone->end_io_data = tio;