383 	blk64_t offset = 0, cur_block;  in sparse_read_blk64()  local
391 		cur_block = block_to_sparse_block(block, &offset, channel, sm);  in sparse_read_blk64()
392 		if (sm->blocks[cur_block])  in sparse_read_blk64()
393 			memcpy(out, (sm->blocks[cur_block]) + offset, count);  in sparse_read_blk64()
398 			cur_block = block_to_sparse_block(block + i, &offset,  in sparse_read_blk64()
400 			if (sm->blocks[cur_block])  in sparse_read_blk64()
402 				       sm->blocks[cur_block] + offset,  in sparse_read_blk64()
422 	blk64_t offset = 0, cur_block;  in sparse_write_blk64()  local
431 		cur_block = block_to_sparse_block(block, &offset, channel,  in sparse_write_blk64()
433 		if (!sm->blocks[cur_block]) {  in sparse_write_blk64()
434 			sm->blocks[cur_block] = calloc(1, sm->block_size);  in sparse_write_blk64()
435 			if (!sm->blocks[cur_block])  in sparse_write_blk64()
438 		memcpy(sm->blocks[cur_block] + offset, in, count);  in sparse_write_blk64()
443 			cur_block = block_to_sparse_block(block + i, &offset,  in sparse_write_blk64()
445 			if (!sm->blocks[cur_block]) {  in sparse_write_blk64()
446 				sm->blocks[cur_block] =  in sparse_write_blk64()
448 				if (!sm->blocks[cur_block])  in sparse_write_blk64()
451 			memcpy(sm->blocks[cur_block] + offset,  in sparse_write_blk64()
468 	blk64_t cur_block, offset;  in sparse_discard()  local
477 		cur_block = block_to_sparse_block(blk + i, &offset, channel,  in sparse_discard()
479 		if (!sm->blocks[cur_block])  in sparse_discard()
481 		free(sm->blocks[cur_block]);  in sparse_discard()
482 		sm->blocks[cur_block] = NULL;  in sparse_discard()