159 	struct buffer_head *obh, *nbh;  in nilfs_btnode_prepare_change_key()  local
209 	nbh = nilfs_btnode_create_block(btnc, newkey);  in nilfs_btnode_prepare_change_key()
210 	if (!nbh)  in nilfs_btnode_prepare_change_key()
213 	BUG_ON(nbh == obh);  in nilfs_btnode_prepare_change_key()
214 	ctxt->newbh = nbh;  in nilfs_btnode_prepare_change_key()
229 	struct buffer_head *obh = ctxt->bh, *nbh = ctxt->newbh;  in nilfs_btnode_commit_change_key()  local
236 	if (nbh == NULL) {	/* blocksize == pagesize */  in nilfs_btnode_commit_change_key()
254 		nilfs_copy_buffer(nbh, obh);  in nilfs_btnode_commit_change_key()
255 		mark_buffer_dirty(nbh);  in nilfs_btnode_commit_change_key()
257 		nbh->b_blocknr = newkey;  in nilfs_btnode_commit_change_key()
258 		ctxt->bh = nbh;  in nilfs_btnode_commit_change_key()
270 	struct buffer_head *nbh = ctxt->newbh;  in nilfs_btnode_abort_change_key()  local
276 	if (nbh == NULL) {	/* blocksize == pagesize */  in nilfs_btnode_abort_change_key()
282 		brelse(nbh);  in nilfs_btnode_abort_change_key()