diff options
| -rw-r--r-- | block/genhd.c | 24 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 1 |
2 files changed, 25 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c index b3bd58e9fbea..a07c4d6a1476 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -565,6 +565,28 @@ out_exit_elevator: } 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 @@ -592,6 +614,8 @@ void blk_mark_disk_dead(struct gendisk *disk) * 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); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 44f2a8bc57e8..9e9a9e4edee9 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1471,6 +1471,7 @@ void blkdev_show(struct seq_file *seqf, off_t offset); #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, |