block: remove the gendisk argument to blk_execute_rq

Remove the gendisk aregument to blk_execute_rq and blk_execute_rq_nowait
given that it is unused now.  Also convert the boolean at_head parameter
to actually use the bool type while touching the prototype.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20211126121802.2090656-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-mq.c

@@ -1153,7 +1153,6 @@ static void blk_end_sync_rq(struct request *rq, blk_status_t error)
 
 /**
  * blk_execute_rq_nowait - insert a request to I/O scheduler for execution
- * @bd_disk:	matching gendisk
  * @rq:		request to insert
  * @at_head:    insert request at head or tail of queue
  * @done:	I/O completion handler
@@ -1165,8 +1164,7 @@ static void blk_end_sync_rq(struct request *rq, blk_status_t error)
  * Note:
  *    This function will invoke @done directly if the queue is dead.
  */
-void blk_execute_rq_nowait(struct gendisk *bd_disk, struct request *rq,
+void blk_execute_rq_nowait(struct request *rq, bool at_head, rq_end_io_fn *done)
-			   int at_head, rq_end_io_fn *done)
 {
 	WARN_ON(irqs_disabled());
 	WARN_ON(!blk_rq_is_passthrough(rq));
@@ -1204,7 +1202,6 @@ static void blk_rq_poll_completion(struct request *rq, struct completion *wait)
 
 /**
  * blk_execute_rq - insert a request into queue for execution
- * @bd_disk:	matching gendisk
  * @rq:		request to insert
  * @at_head:    insert request at head or tail of queue
  *
@@ -1213,14 +1210,13 @@ static void blk_rq_poll_completion(struct request *rq, struct completion *wait)
  *    for execution and wait for completion.
  * Return: The blk_status_t result provided to blk_mq_end_request().
  */
-blk_status_t blk_execute_rq(struct gendisk *bd_disk, struct request *rq,
+blk_status_t blk_execute_rq(struct request *rq, bool at_head)
-		int at_head)
 {
 	DECLARE_COMPLETION_ONSTACK(wait);
 	unsigned long hang_check;
 
 	rq->end_io_data = &wait;
-	blk_execute_rq_nowait(bd_disk, rq, at_head, blk_end_sync_rq);
+	blk_execute_rq_nowait(rq, at_head, blk_end_sync_rq);
 
 	/* Prevent hang_check timer from firing at us during very long I/O */
 	hang_check = sysctl_hung_task_timeout_secs;

block/bsg-lib.c

@@ -92,7 +92,7 @@ static int bsg_transport_sg_io_fn(struct request_queue *q, struct sg_io_v4 *hdr,
 		goto out_unmap_bidi_rq;
 
 	bio = rq->bio;
-	blk_execute_rq(NULL, rq, !(hdr->flags & BSG_FLAG_Q_AT_TAIL));
+	blk_execute_rq(rq, !(hdr->flags & BSG_FLAG_Q_AT_TAIL));
 
 	/*
 	 * The assignments below don't make much sense, but are kept for

drivers/block/mtip32xx/mtip32xx.c

@@ -1015,7 +1015,7 @@ static int mtip_exec_internal_command(struct mtip_port *port,
 	rq->timeout = timeout;
 
 	/* insert request and run queue */
-	blk_execute_rq(NULL, rq, true);
+	blk_execute_rq(rq, true);
 
 	if (int_cmd->status) {
 		dev_err(&dd->pdev->dev, "Internal command [%02X] failed %d\n",

drivers/block/paride/pd.c

@@ -781,7 +781,7 @@ static int pd_special_command(struct pd_unit *disk,
 	req = blk_mq_rq_to_pdu(rq);
 
 	req->func = func;
-	blk_execute_rq(disk->gd, rq, 0);
+	blk_execute_rq(rq, false);
 	blk_mq_free_request(rq);
 	return 0;
 }

drivers/block/pktcdvd.c

@@ -722,7 +722,7 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *
 	if (cgc->quiet)
 		rq->rq_flags |= RQF_QUIET;
 
-	blk_execute_rq(pd->bdev->bd_disk, rq, 0);
+	blk_execute_rq(rq, false);
 	if (scsi_req(rq)->result)
 		ret = -EIO;
 out:

drivers/block/sx8.c

@@ -540,7 +540,7 @@ static int carm_array_info (struct carm_host *host, unsigned int array_idx)
 	spin_unlock_irq(&host->lock);
 
 	DPRINTK("blk_execute_rq_nowait, tag == %u\n", rq->tag);
-	blk_execute_rq_nowait(NULL, rq, true, NULL);
+	blk_execute_rq_nowait(rq, true, NULL);
 
 	return 0;
 
@@ -579,7 +579,7 @@ static int carm_send_special (struct carm_host *host, carm_sspc_t func)
 	crq->msg_bucket = (u32) rc;
 
 	DPRINTK("blk_execute_rq_nowait, tag == %u\n", rq->tag);
-	blk_execute_rq_nowait(NULL, rq, true, NULL);
+	blk_execute_rq_nowait(rq, true, NULL);
 
 	return 0;
 }

drivers/block/virtio_blk.c

@@ -384,7 +384,7 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str)
 	if (err)
 		goto out;
 
-	blk_execute_rq(vblk->disk, req, false);
+	blk_execute_rq(req, false);
 	err = blk_status_to_errno(virtblk_result(blk_mq_rq_to_pdu(req)));
 out:
 	blk_mq_free_request(req);

drivers/mmc/core/block.c

@@ -264,7 +264,7 @@ static ssize_t power_ro_lock_store(struct device *dev,
 		goto out_put;
 	}
 	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_BOOT_WP;
-	blk_execute_rq(NULL, req, 0);
+	blk_execute_rq(req, false);
 	ret = req_to_mmc_queue_req(req)->drv_op_result;
 	blk_mq_free_request(req);
 
@@ -657,7 +657,7 @@ static int mmc_blk_ioctl_cmd(struct mmc_blk_data *md,
 		rpmb ? MMC_DRV_OP_IOCTL_RPMB : MMC_DRV_OP_IOCTL;
 	req_to_mmc_queue_req(req)->drv_op_data = idatas;
 	req_to_mmc_queue_req(req)->ioc_count = 1;
-	blk_execute_rq(NULL, req, 0);
+	blk_execute_rq(req, false);
 	ioc_err = req_to_mmc_queue_req(req)->drv_op_result;
 	err = mmc_blk_ioctl_copy_to_user(ic_ptr, idata);
 	blk_mq_free_request(req);
@@ -726,7 +726,7 @@ static int mmc_blk_ioctl_multi_cmd(struct mmc_blk_data *md,
 		rpmb ? MMC_DRV_OP_IOCTL_RPMB : MMC_DRV_OP_IOCTL;
 	req_to_mmc_queue_req(req)->drv_op_data = idata;
 	req_to_mmc_queue_req(req)->ioc_count = num_of_cmds;
-	blk_execute_rq(NULL, req, 0);
+	blk_execute_rq(req, false);
 	ioc_err = req_to_mmc_queue_req(req)->drv_op_result;
 
 	/* copy to user if data and response */
@@ -2743,7 +2743,7 @@ static int mmc_dbg_card_status_get(void *data, u64 *val)
 	if (IS_ERR(req))
 		return PTR_ERR(req);
 	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_GET_CARD_STATUS;
-	blk_execute_rq(NULL, req, 0);
+	blk_execute_rq(req, false);
 	ret = req_to_mmc_queue_req(req)->drv_op_result;
 	if (ret >= 0) {
 		*val = ret;
@@ -2782,7 +2782,7 @@ static int mmc_ext_csd_open(struct inode *inode, struct file *filp)
 	}
 	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_GET_EXT_CSD;
 	req_to_mmc_queue_req(req)->drv_op_data = &ext_csd;
-	blk_execute_rq(NULL, req, 0);
+	blk_execute_rq(req, false);
 	err = req_to_mmc_queue_req(req)->drv_op_result;
 	blk_mq_free_request(req);
 	if (err) {

drivers/nvme/host/core.c

@@ -1056,7 +1056,7 @@ static int nvme_execute_rq(struct gendisk *disk, struct request *rq,
 {
 	blk_status_t status;
 
-	status = blk_execute_rq(disk, rq, at_head);
+	status = blk_execute_rq(rq, at_head);
 	if (nvme_req(rq)->flags & NVME_REQ_CANCELLED)
 		return -EINTR;
 	if (nvme_req(rq)->status)
@@ -1283,7 +1283,7 @@ static void nvme_keep_alive_work(struct work_struct *work)
 
 	rq->timeout = ctrl->kato * HZ;
 	rq->end_io_data = ctrl;
-	blk_execute_rq_nowait(NULL, rq, 0, nvme_keep_alive_end_io);
+	blk_execute_rq_nowait(rq, false, nvme_keep_alive_end_io);
 }
 
 static void nvme_start_keep_alive(struct nvme_ctrl *ctrl)

drivers/nvme/host/pci.c

@@ -1371,7 +1371,7 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
 	}
 
 	abort_req->end_io_data = NULL;
-	blk_execute_rq_nowait(NULL, abort_req, 0, abort_endio);
+	blk_execute_rq_nowait(abort_req, false, abort_endio);
 
 	/*
 	 * The aborted req will be completed on receiving the abort req.
@@ -2416,9 +2416,8 @@ static int nvme_delete_queue(struct nvme_queue *nvmeq, u8 opcode)
 	req->end_io_data = nvmeq;
 
 	init_completion(&nvmeq->delete_done);
-	blk_execute_rq_nowait(NULL, req, false,
+	blk_execute_rq_nowait(req, false, opcode == nvme_admin_delete_cq ?
-			opcode == nvme_admin_delete_cq ?
+			nvme_del_cq_end : nvme_del_queue_end);
-				nvme_del_cq_end : nvme_del_queue_end);
 	return 0;
 }
 

drivers/nvme/target/passthru.c

@@ -284,8 +284,7 @@ static void nvmet_passthru_execute_cmd(struct nvmet_req *req)
 		schedule_work(&req->p.work);
 	} else {
 		rq->end_io_data = req;
-		blk_execute_rq_nowait(ns ? ns->disk : NULL, rq, 0,
+		blk_execute_rq_nowait(rq, false, nvmet_passthru_req_done);
-				      nvmet_passthru_req_done);
 	}
 
 	if (ns)

drivers/scsi/scsi_bsg.c

@@ -60,7 +60,7 @@ static int scsi_bsg_sg_io_fn(struct request_queue *q, struct sg_io_v4 *hdr,
 		goto out_free_cmd;
 
 	bio = rq->bio;
-	blk_execute_rq(NULL, rq, !(hdr->flags & BSG_FLAG_Q_AT_TAIL));
+	blk_execute_rq(rq, !(hdr->flags & BSG_FLAG_Q_AT_TAIL));
 
 	/*
 	 * fill in all the output members

drivers/scsi/scsi_error.c

@@ -2040,7 +2040,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
 	req->timeout = 10 * HZ;
 	rq->retries = 5;
 
-	blk_execute_rq_nowait(NULL, req, 1, eh_lock_door_done);
+	blk_execute_rq_nowait(req, true, eh_lock_door_done);
 }
 
 /**

drivers/scsi/scsi_ioctl.c

@@ -483,7 +483,7 @@ static int sg_io(struct scsi_device *sdev, struct gendisk *disk,
 
 	start_time = jiffies;
 
-	blk_execute_rq(disk, rq, at_head);
+	blk_execute_rq(rq, at_head);
 
 	hdr->duration = jiffies_to_msecs(jiffies - start_time);
 
@@ -620,7 +620,7 @@ static int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk,
 			goto error;
 	}
 
-	blk_execute_rq(disk, rq, 0);
+	blk_execute_rq(rq, false);
 
 	err = req->result & 0xff;	/* only 8 bit SCSI status */
 	if (err) {

drivers/scsi/scsi_lib.c

@@ -241,7 +241,7 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
 	/*
 	 * head injection *required* here otherwise quiesce won't work
 	 */
-	blk_execute_rq(NULL, req, 1);
+	blk_execute_rq(req, true);
 
 	/*
 	 * Some devices (USB mass-storage in particular) may transfer

drivers/scsi/sg.c

@@ -833,7 +833,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
 
 	srp->rq->timeout = timeout;
 	kref_get(&sfp->f_ref); /* sg_rq_end_io() does kref_put(). */
-	blk_execute_rq_nowait(NULL, srp->rq, at_head, sg_rq_end_io);
+	blk_execute_rq_nowait(srp->rq, at_head, sg_rq_end_io);
 	return 0;
 }
 

drivers/scsi/sr.c

@@ -994,7 +994,7 @@ static int sr_read_cdda_bpc(struct cdrom_device_info *cdi, void __user *ubuf,
 	rq->timeout = 60 * HZ;
 	bio = rq->bio;
 
-	blk_execute_rq(disk, rq, 0);
+	blk_execute_rq(rq, false);
 	if (scsi_req(rq)->result) {
 		struct scsi_sense_hdr sshdr;
 

drivers/scsi/st.c

@@ -581,7 +581,7 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd,
 	rq->retries = retries;
 	req->end_io_data = SRpnt;
 
-	blk_execute_rq_nowait(NULL, req, 1, st_scsi_execute_end);
+	blk_execute_rq_nowait(req, true, st_scsi_execute_end);
 	return 0;
 }
 

drivers/scsi/ufs/ufshpb.c

@@ -677,7 +677,7 @@ static void ufshpb_execute_umap_req(struct ufshpb_lu *hpb,
 	ufshpb_set_unmap_cmd(rq->cmd, rgn);
 	rq->cmd_len = HPB_WRITE_BUFFER_CMD_LENGTH;
 
-	blk_execute_rq_nowait(NULL, req, 1, ufshpb_umap_req_compl_fn);
+	blk_execute_rq_nowait(req, true, ufshpb_umap_req_compl_fn);
 
 	hpb->stats.umap_req_cnt++;
 }
@@ -719,7 +719,7 @@ static int ufshpb_execute_map_req(struct ufshpb_lu *hpb,
 				map_req->rb.srgn_idx, mem_size);
 	rq->cmd_len = HPB_READ_BUFFER_CMD_LENGTH;
 
-	blk_execute_rq_nowait(NULL, req, 1, ufshpb_map_req_compl_fn);
+	blk_execute_rq_nowait(req, true, ufshpb_map_req_compl_fn);
 
 	hpb->stats.map_req_cnt++;
 	return 0;

drivers/target/target_core_pscsi.c

@@ -1005,7 +1005,7 @@ pscsi_execute_cmd(struct se_cmd *cmd)
 		req->timeout = PS_TIMEOUT_OTHER;
 	scsi_req(req)->retries = PS_RETRY;
 
-	blk_execute_rq_nowait(NULL, req, (cmd->sam_task_attr == TCM_HEAD_TAG),
+	blk_execute_rq_nowait(req, cmd->sam_task_attr == TCM_HEAD_TAG,
 			pscsi_req_done);
 
 	return 0;

include/linux/blk-mq.h

@@ -924,10 +924,9 @@ int blk_rq_unmap_user(struct bio *);
 int blk_rq_map_kern(struct request_queue *, struct request *, void *,
 		unsigned int, gfp_t);
 int blk_rq_append_bio(struct request *rq, struct bio *bio);
-void blk_execute_rq_nowait(struct gendisk *, struct request *, int,
+void blk_execute_rq_nowait(struct request *rq, bool at_head,
-		rq_end_io_fn *);
+		rq_end_io_fn *end_io);
-blk_status_t blk_execute_rq(struct gendisk *bd_disk, struct request *rq,
+blk_status_t blk_execute_rq(struct request *rq, bool at_head);
-		int at_head);
 
 struct req_iterator {
 	struct bvec_iter iter;