Merge tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block

Pull core block updates from Jens Axboe:

 - disk events cleanup (Christoph)

 - gendisk and request queue allocation simplifications (Christoph)

 - bdev_disk_changed cleanups (Christoph)

 - IO priority improvements (Bart)

 - Chained bio completion trace fix (Edward)

 - blk-wbt fixes (Jan)

 - blk-wbt enable/disable fix (Zhang)

 - Scheduler dispatch improvements (Jan, Ming)

 - Shared tagset scheduler improvements (John)

 - BFQ updates (Paolo, Luca, Pietro)

 - BFQ lock inversion fix (Jan)

 - Documentation improvements (Kir)

 - CLONE_IO block cgroup fix (Tejun)

 - Remove of ancient and deprecated block dump feature (zhangyi)

 - Discard merge fix (Ming)

 - Misc fixes or followup fixes (Colin, Damien, Dan, Long, Max, Thomas,
   Yang)

* tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block: (129 commits)
  block: fix discard request merge
  block/mq-deadline: Remove a WARN_ON_ONCE() call
  blk-mq: update hctx->dispatch_busy in case of real scheduler
  blk: Fix lock inversion between ioc lock and bfqd lock
  bfq: Remove merged request already in bfq_requests_merged()
  block: pass a gendisk to bdev_disk_changed
  block: move bdev_disk_changed
  block: add the events* attributes to disk_attrs
  block: move the disk events code to a separate file
  block: fix trace completion for chained bio
  block/partitions/msdos: Fix typo inidicator -> indicator
  block, bfq: reset waker pointer with shared queues
  block, bfq: check waker only for queues with no in-flight I/O
  block, bfq: avoid delayed merge of async queues
  block, bfq: boost throughput by extending queue-merging times
  block, bfq: consider also creation time in delayed stable merge
  block, bfq: fix delayed stable merge check
  block, bfq: let also stably merged queues enjoy weight raising
  blk-wbt: make sure throttle is enabled properly
  blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
  ...

1 files changed, 7 insertions, 22 deletions

diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c
index fc09be7b1347..3cdfa00738e0 100644
--- a/arch/xtensa/platforms/iss/simdisk.c
+++ b/arch/xtensa/platforms/iss/simdisk.c
@@ -27,7 +27,6 @@
 struct simdisk {
 	const char *filename;
 	spinlock_t lock;
-	struct request_queue *queue;
 	struct gendisk *gd;
 	struct proc_dir_entry *procfile;
 	int users;
@@ -266,21 +265,13 @@ static int __init simdisk_setup(struct simdisk *dev, int which,
 	spin_lock_init(&dev->lock);
 	dev->users = 0;
 
-	dev->queue = blk_alloc_queue(NUMA_NO_NODE);
-	if (dev->queue == NULL) {
-		pr_err("blk_alloc_queue failed\n");
-		goto out_alloc_queue;
-	}
-
-	dev->gd = alloc_disk(SIMDISK_MINORS);
-	if (dev->gd == NULL) {
-		pr_err("alloc_disk failed\n");
-		goto out_alloc_disk;
-	}
+	dev->gd = blk_alloc_disk(NUMA_NO_NODE);
+	if (!dev->gd)
+		return -ENOMEM;
 	dev->gd->major = simdisk_major;
 	dev->gd->first_minor = which;
+	dev->gd->minors = SIMDISK_MINORS;
 	dev->gd->fops = &simdisk_ops;
-	dev->gd->queue = dev->queue;
 	dev->gd->private_data = dev;
 	snprintf(dev->gd->disk_name, 32, "simdisk%d", which);
 	set_capacity(dev->gd, 0);
@@ -288,12 +279,6 @@ static int __init simdisk_setup(struct simdisk *dev, int which,
 
 	dev->procfile = proc_create_data(tmp, 0644, procdir, &simdisk_proc_ops, dev);
 	return 0;
-
-out_alloc_disk:
-	blk_cleanup_queue(dev->queue);
-	dev->queue = NULL;
-out_alloc_queue:
-	return -ENOMEM;
 }
 
 static int __init simdisk_init(void)
@@ -343,10 +328,10 @@ static void simdisk_teardown(struct simdisk *dev, int which,
 	char tmp[2] = { '0' + which, 0 };
 
 	simdisk_detach(dev);
-	if (dev->gd)
+	if (dev->gd) {
 		del_gendisk(dev->gd);
-	if (dev->queue)
-		blk_cleanup_queue(dev->queue);
+		blk_cleanup_disk(dev->gd);
+	}
 	remove_proc_entry(tmp, procdir);
 }