Merge tag 'for-5.17/block-2022-01-11' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Unify where the struct request handling code is located in the blk-mq
   code (Christoph)

 - Header cleanups (Christoph)

 - Clean up the io_context handling code (Christoph, me)

 - Get rid of ->rq_disk in struct request (Christoph)

 - Error handling fix for add_disk() (Christoph)

 - request allocation cleanusp (Christoph)

 - Documentation updates (Eric, Matthew)

 - Remove trivial crypto unregister helper (Eric)

 - Reduce shared tag overhead (John)

 - Reduce poll_stats memory overhead (me)

 - Known indirect function call for dio (me)

 - Use atomic references for struct request (me)

 - Support request list issue for block and NVMe (me)

 - Improve queue dispatch pinning (Ming)

 - Improve the direct list issue code (Keith)

 - BFQ improvements (Jan)

 - Direct completion helper and use it in mmc block (Sebastian)

 - Use raw spinlock for the blktrace code (Wander)

 - fsync error handling fix (Ye)

 - Various fixes and cleanups (Lukas, Randy, Yang, Tetsuo, Ming, me)

* tag 'for-5.17/block-2022-01-11' of git://git.kernel.dk/linux-block: (132 commits)
  MAINTAINERS: add entries for block layer documentation
  docs: block: remove queue-sysfs.rst
  docs: sysfs-block: document virt_boundary_mask
  docs: sysfs-block: document stable_writes
  docs: sysfs-block: fill in missing documentation from queue-sysfs.rst
  docs: sysfs-block: add contact for nomerges
  docs: sysfs-block: sort alphabetically
  docs: sysfs-block: move to stable directory
  block: don't protect submit_bio_checks by q_usage_counter
  block: fix old-style declaration
  nvme-pci: fix queue_rqs list splitting
  block: introduce rq_list_move
  block: introduce rq_list_for_each_safe macro
  block: move rq_list macros to blk-mq.h
  block: drop needless assignment in set_task_ioprio()
  block: remove unnecessary trailing '\'
  bio.h: fix kernel-doc warnings
  block: check minor range in device_add_disk()
  block: use "unsigned long" for blk_validate_block_size().
  block: fix error unwinding in device_add_disk
  ...

1 files changed, 21 insertions, 17 deletions

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 2483cfdd30ea..4e61b28a002f 100644
--- a/drivers/mmc/core/block.c
+++ b/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 */
@@ -1837,7 +1837,7 @@ static void mmc_blk_mq_rw_recovery(struct mmc_queue *mq, struct request *req)
 	/* Reset if the card is in a bad state */
 	if (!mmc_host_is_spi(mq->card->host) &&
 	    err && mmc_blk_reset(md, card->host, type)) {
-		pr_err("%s: recovery failed!\n", req->rq_disk->disk_name);
+		pr_err("%s: recovery failed!\n", req->q->disk->disk_name);
 		mqrq->retries = MMC_NO_RETRIES;
 		return;
 	}
@@ -2051,7 +2051,8 @@ static void mmc_blk_mq_dec_in_flight(struct mmc_queue *mq, struct request *req)
 		mmc_put_card(mq->card, &mq->ctx);
 }
 
-static void mmc_blk_mq_post_req(struct mmc_queue *mq, struct request *req)
+static void mmc_blk_mq_post_req(struct mmc_queue *mq, struct request *req,
+				bool can_sleep)
 {
 	struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req);
 	struct mmc_request *mrq = &mqrq->brq.mrq;
@@ -2063,10 +2064,14 @@ static void mmc_blk_mq_post_req(struct mmc_queue *mq, struct request *req)
 	 * Block layer timeouts race with completions which means the normal
 	 * completion path cannot be used during recovery.
 	 */
-	if (mq->in_recovery)
+	if (mq->in_recovery) {
 		mmc_blk_mq_complete_rq(mq, req);
-	else if (likely(!blk_should_fake_timeout(req->q)))
-		blk_mq_complete_request(req);
+	} else if (likely(!blk_should_fake_timeout(req->q))) {
+		if (can_sleep)
+			blk_mq_complete_request_direct(req, mmc_blk_mq_complete);
+		else
+			blk_mq_complete_request(req);
+	}
 
 	mmc_blk_mq_dec_in_flight(mq, req);
 }
@@ -2087,7 +2092,7 @@ void mmc_blk_mq_recovery(struct mmc_queue *mq)
 
 	mmc_blk_urgent_bkops(mq, mqrq);
 
-	mmc_blk_mq_post_req(mq, req);
+	mmc_blk_mq_post_req(mq, req, true);
 }
 
 static void mmc_blk_mq_complete_prev_req(struct mmc_queue *mq,
@@ -2106,7 +2111,7 @@ static void mmc_blk_mq_complete_prev_req(struct mmc_queue *mq,
 	if (prev_req)
 		*prev_req = mq->complete_req;
 	else
-		mmc_blk_mq_post_req(mq, mq->complete_req);
+		mmc_blk_mq_post_req(mq, mq->complete_req, true);
 
 	mq->complete_req = NULL;
 
@@ -2178,7 +2183,8 @@ static void mmc_blk_mq_req_done(struct mmc_request *mrq)
 	mq->rw_wait = false;
 	wake_up(&mq->wait);
 
-	mmc_blk_mq_post_req(mq, req);
+	/* context unknown */
+	mmc_blk_mq_post_req(mq, req, false);
 }
 
 static bool mmc_blk_rw_wait_cond(struct mmc_queue *mq, int *err)
@@ -2238,7 +2244,7 @@ static int mmc_blk_mq_issue_rw_rq(struct mmc_queue *mq,
 	err = mmc_start_request(host, &mqrq->brq.mrq);
 
 	if (prev_req)
-		mmc_blk_mq_post_req(mq, prev_req);
+		mmc_blk_mq_post_req(mq, prev_req, true);
 
 	if (err)
 		mq->rw_wait = false;
@@ -2395,10 +2401,8 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
 	md->disk->private_data = md;
 	md->parent = parent;
 	set_disk_ro(md->disk, md->read_only || default_ro);
-	md->disk->flags = GENHD_FL_EXT_DEVT;
 	if (area_type & (MMC_BLK_DATA_AREA_RPMB | MMC_BLK_DATA_AREA_BOOT))
-		md->disk->flags |= GENHD_FL_NO_PART_SCAN
-				   | GENHD_FL_SUPPRESS_PARTITION_INFO;
+		md->disk->flags |= GENHD_FL_NO_PART;
 
 	/*
 	 * As discussed on lkml, GENHD_FL_REMOVABLE should:
@@ -2739,7 +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;
@@ -2778,7 +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) {