105 	int r = 0;  in is_shadow()  local
112 			r = 1;  in is_shadow()
117 	return r;  in is_shadow()
209 	int r;  in dm_tm_pre_commit()  local
214 	r = dm_sm_commit(tm->sm);  in dm_tm_pre_commit()
215 	if (r < 0)  in dm_tm_pre_commit()
216 		return r;  in dm_tm_pre_commit()
238 	int r;  in dm_tm_new_block()  local
244 	r = dm_sm_new_block(tm->sm, &new_block);  in dm_tm_new_block()
245 	if (r < 0)  in dm_tm_new_block()
246 		return r;  in dm_tm_new_block()
248 	r = dm_bm_write_lock_zero(tm->bm, new_block, v, result);  in dm_tm_new_block()
249 	if (r < 0) {  in dm_tm_new_block()
251 		return r;  in dm_tm_new_block()
267 	int r;  in __shadow_block()  local
271 	r = dm_sm_new_block(tm->sm, &new);  in __shadow_block()
272 	if (r < 0)  in __shadow_block()
273 		return r;  in __shadow_block()
275 	r = dm_sm_dec_block(tm->sm, orig);  in __shadow_block()
276 	if (r < 0)  in __shadow_block()
277 		return r;  in __shadow_block()
279 	r = dm_bm_read_lock(tm->bm, orig, v, &orig_block);  in __shadow_block()
280 	if (r < 0)  in __shadow_block()
281 		return r;  in __shadow_block()
290 	r = dm_bm_write_lock_zero(tm->bm, new, v, result);  in __shadow_block()
291 	if (r) {  in __shadow_block()
293 		return r;  in __shadow_block()
300 	return r;  in __shadow_block()
307 	int r;  in dm_tm_shadow_block()  local
312 	r = dm_sm_count_is_more_than_one(tm->sm, orig, inc_children);  in dm_tm_shadow_block()
313 	if (r < 0)  in dm_tm_shadow_block()
314 		return r;  in dm_tm_shadow_block()
319 	r = __shadow_block(tm, orig, v, result);  in dm_tm_shadow_block()
320 	if (r < 0)  in dm_tm_shadow_block()
321 		return r;  in dm_tm_shadow_block()
324 	return r;  in dm_tm_shadow_block()
333 		int r = dm_bm_read_try_lock(tm->real->bm, b, v, blk);  in dm_tm_read_lock()  local
335 		if (r == -EWOULDBLOCK)  in dm_tm_read_lock()
338 		return r;  in dm_tm_read_lock()
402 	int r;  in dm_tm_create_internal()  local
415 		r = dm_sm_metadata_create(*sm, *tm, dm_bm_nr_blocks(bm),  in dm_tm_create_internal()
417 		if (r) {  in dm_tm_create_internal()
423 		r = dm_sm_metadata_open(*sm, *tm, sm_root, sm_len);  in dm_tm_create_internal()
424 		if (r) {  in dm_tm_create_internal()
435 	return r;  in dm_tm_create_internal()