212 	struct buffer_head *obh, *nbh;  in nilfs_btnode_prepare_change_key()  local
220 	obh = ctxt->bh;  in nilfs_btnode_prepare_change_key()
224 		struct folio *ofolio = obh->b_folio;  in nilfs_btnode_prepare_change_key()
259 	BUG_ON(nbh == obh);  in nilfs_btnode_prepare_change_key()
264 	folio_unlock(obh->b_folio);  in nilfs_btnode_prepare_change_key()
288 	struct buffer_head *obh = ctxt->bh, *nbh = ctxt->newbh;  in nilfs_btnode_commit_change_key()  local
296 		ofolio = obh->b_folio;  in nilfs_btnode_commit_change_key()
302 		mark_buffer_dirty(obh);  in nilfs_btnode_commit_change_key()
309 		ofolio->index = obh->b_blocknr = newkey;  in nilfs_btnode_commit_change_key()
312 		nilfs_copy_buffer(nbh, obh);  in nilfs_btnode_commit_change_key()
317 		nilfs_btnode_delete(obh); /* will decrement bh->b_count */  in nilfs_btnode_commit_change_key()