Merge branch 'block-6.17' into for-next

* block-6.17:
  block: ensure discard_granularity is zero when discard is not supported
  zloop: fix KASAN use-after-free of tag set
  block: Fix default IO priority if there is no IO context

Author: axboe

block/blk-settings.c

@@ -400,12 +400,19 @@ int blk_validate_limits(struct queue_limits *lim)
 	lim->max_discard_sectors =
 		min(lim->max_hw_discard_sectors, lim->max_user_discard_sectors);
 
+	/*
+	 * When discard is not supported, discard_granularity should be reported
+	 * as 0 to userspace.
+	 */
+	if (lim->max_discard_sectors)
+		lim->discard_granularity =
+			max(lim->discard_granularity, lim->physical_block_size);
+	else
+		lim->discard_granularity = 0;
+
 	if (!lim->max_discard_segments)
 		lim->max_discard_segments = 1;
 
-	if (lim->discard_granularity < lim->physical_block_size)
-		lim->discard_granularity = lim->physical_block_size;
-
 	/*
 	 * By default there is no limit on the segment boundary alignment,
 	 * but if there is one it can't be smaller than the page size as

drivers/block/zloop.c

@@ -700,6 +700,8 @@ static void zloop_free_disk(struct gendisk *disk)
 	struct zloop_device *zlo = disk->private_data;
 	unsigned int i;
 
+	blk_mq_free_tag_set(&zlo->tag_set);
+
 	for (i = 0; i < zlo->nr_zones; i++) {
 		struct zloop_zone *zone = &zlo->zones[i];
 
@@ -1080,7 +1082,6 @@ static int zloop_ctl_remove(struct zloop_options *opts)
 
 	del_gendisk(zlo->disk);
 	put_disk(zlo->disk);
-	blk_mq_free_tag_set(&zlo->tag_set);
 
 	pr_info("Removed device %d\n", opts->id);
 

include/linux/ioprio.h

@@ -60,7 +60,8 @@ static inline int __get_task_ioprio(struct task_struct *p)
 	int prio;
 
 	if (!ioc)
-		return IOPRIO_DEFAULT;
+		return IOPRIO_PRIO_VALUE(task_nice_ioclass(p),
+					 task_nice_ioprio(p));
 
 	if (p != current)
 		lockdep_assert_held(&p->alloc_lock);