diff options
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c index 4a16a424f57d4..c9d06f72c587e 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -559,6 +559,13 @@ static void blk_report_disk_dead(struct gendisk *disk, bool surprise) struct block_device *bdev; unsigned long idx; + /* + * On surprise disk removal, bdev_mark_dead() may call into file + * systems below. Make it clear that we're expecting to not hold + * disk->open_mutex. + */ + lockdep_assert_not_held(&disk->open_mutex); + rcu_read_lock(); xa_for_each(&disk->part_tbl, idx, bdev) { if (!kobject_get_unless_zero(&bdev->bd_device.kobj)) |