159 	struct buffer_head *obh, *nbh;  in nilfs_btnode_prepare_change_key()  local
167 	obh = ctxt->bh;  in nilfs_btnode_prepare_change_key()
171 		struct page *opage = obh->b_page;  in nilfs_btnode_prepare_change_key()
206 	BUG_ON(nbh == obh);  in nilfs_btnode_prepare_change_key()
211 	unlock_page(obh->b_page);  in nilfs_btnode_prepare_change_key()
222 	struct buffer_head *obh = ctxt->bh, *nbh = ctxt->newbh;  in nilfs_btnode_commit_change_key()  local
230 		opage = obh->b_page;  in nilfs_btnode_commit_change_key()
236 		mark_buffer_dirty(obh);  in nilfs_btnode_commit_change_key()
243 		opage->index = obh->b_blocknr = newkey;  in nilfs_btnode_commit_change_key()
246 		nilfs_copy_buffer(nbh, obh);  in nilfs_btnode_commit_change_key()
251 		nilfs_btnode_delete(obh); /* will decrement bh->b_count */  in nilfs_btnode_commit_change_key()