block: add a __disk_get_part helper

[mirror_ubuntu-bionic-kernel.git] / block / blk.h

diff --git a/block/blk.h b/block/blk.h
index 3a3d715bd7253b82522b30fcde33161f909dcf0b..fde8b351c166dbdaca88faac146c6f4bf7bf5d9f 100644 (file)
--- a/block/blk.h
+++ b/block/blk.h
@@ -204,6 +204,8 @@ static inline void elv_deactivate_rq(struct request_queue *q, struct request *rq
                e->type->ops.sq.elevator_deactivate_req_fn(q, rq);
 }
 
+struct hd_struct *__disk_get_part(struct gendisk *disk, int partno);
+
 #ifdef CONFIG_FAIL_IO_TIMEOUT
 int blk_should_fake_timeout(struct request_queue *);
 ssize_t part_timeout_show(struct device *, struct device_attribute *, char *);