block: add internal hd part table references

We can't use krefs since it's apparently restricted to very basic
reference counting.

This reverts commit e4a683c8.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/block/blk-merge.c b/block/blk-merge.c
index b06b83b89d8..00b7d31b38a 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -356,7 +356,7 @@ static void blk_account_io_merge(struct request *req)
 		part_round_stats(cpu, part);
 		part_dec_in_flight(part, rq_data_dir(req));
 
-		kref_put(&part->ref, __delete_partition);
+		hd_struct_put(part);
 		part_stat_unlock();
 	}
 }