}
EXPORT_SYMBOL(device_add_disk);
+static void blk_report_disk_dead(struct gendisk *disk)
+{
+ struct block_device *bdev;
+ unsigned long idx;
+
+ rcu_read_lock();
+ xa_for_each(&disk->part_tbl, idx, bdev) {
+ if (!kobject_get_unless_zero(&bdev->bd_device.kobj))
+ continue;
+ rcu_read_unlock();
+
+ mutex_lock(&bdev->bd_holder_lock);
+ if (bdev->bd_holder_ops && bdev->bd_holder_ops->mark_dead)
+ bdev->bd_holder_ops->mark_dead(bdev);
+ mutex_unlock(&bdev->bd_holder_lock);
+
+ put_device(&bdev->bd_device);
+ rcu_read_lock();
+ }
+ rcu_read_unlock();
+}
+
/**
* blk_mark_disk_dead - mark a disk as dead
* @disk: disk to mark as dead
* Prevent new I/O from crossing bio_queue_enter().
*/
blk_queue_start_drain(disk->queue);
+
+ blk_report_disk_dead(disk);
}
EXPORT_SYMBOL_GPL(blk_mark_disk_dead);
#endif
struct blk_holder_ops {
+ void (*mark_dead)(struct block_device *bdev);
};
struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder,