310 	struct btrfs_key key;  in btrfs_lookup_csums_range()  local
335 	key.objectid = BTRFS_EXTENT_CSUM_OBJECTID;  in btrfs_lookup_csums_range()
336 	key.offset = start;  in btrfs_lookup_csums_range()
337 	key.type = BTRFS_EXTENT_CSUM_KEY;  in btrfs_lookup_csums_range()
339 	ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);  in btrfs_lookup_csums_range()
344 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0] - 1);  in btrfs_lookup_csums_range()
345 		if (key.objectid == BTRFS_EXTENT_CSUM_OBJECTID &&  in btrfs_lookup_csums_range()
346 		    key.type == BTRFS_EXTENT_CSUM_KEY) {  in btrfs_lookup_csums_range()
347 			offset = (start - key.offset) >>  in btrfs_lookup_csums_range()
366 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in btrfs_lookup_csums_range()
367 		if (key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||  in btrfs_lookup_csums_range()
368 		    key.type != BTRFS_EXTENT_CSUM_KEY ||  in btrfs_lookup_csums_range()
369 		    key.offset > end)  in btrfs_lookup_csums_range()
372 		if (key.offset > start)  in btrfs_lookup_csums_range()
373 			start = key.offset;  in btrfs_lookup_csums_range()
376 		csum_end = key.offset + (size / csum_size) * root->sectorsize;  in btrfs_lookup_csums_range()
398 			offset = (start - key.offset) >>  in btrfs_lookup_csums_range()
518 				       struct btrfs_key *key,  in truncate_one_csum()  argument
530 	csum_end += key->offset;  in truncate_one_csum()
532 	if (key->offset < bytenr && csum_end <= end_byte) {  in truncate_one_csum()
539 		u32 new_size = (bytenr - key->offset) >> blocksize_bits;  in truncate_one_csum()
542 	} else if (key->offset >= bytenr && csum_end > end_byte &&  in truncate_one_csum()
543 		   end_byte > key->offset) {  in truncate_one_csum()
555 		key->offset = end_byte;  in truncate_one_csum()
556 		btrfs_set_item_key_safe(root->fs_info, path, key);  in truncate_one_csum()
570 	struct btrfs_key key;  in btrfs_del_csums()  local
585 		key.objectid = BTRFS_EXTENT_CSUM_OBJECTID;  in btrfs_del_csums()
586 		key.offset = end_byte - 1;  in btrfs_del_csums()
587 		key.type = BTRFS_EXTENT_CSUM_KEY;  in btrfs_del_csums()
590 		ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_del_csums()
600 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in btrfs_del_csums()
602 		if (key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||  in btrfs_del_csums()
603 		    key.type != BTRFS_EXTENT_CSUM_KEY) {  in btrfs_del_csums()
607 		if (key.offset >= end_byte)  in btrfs_del_csums()
612 		csum_end += key.offset;  in btrfs_del_csums()
619 		if (key.offset >= bytenr && csum_end <= end_byte) {  in btrfs_del_csums()
623 			if (key.offset == bytenr)  in btrfs_del_csums()
625 		} else if (key.offset < bytenr && csum_end > end_byte) {  in btrfs_del_csums()
647 			offset = (bytenr - key.offset) >> blocksize_bits;  in btrfs_del_csums()
657 			key.offset = bytenr;  in btrfs_del_csums()
663 			ret = btrfs_split_item(trans, root, path, &key, offset);  in btrfs_del_csums()
669 			key.offset = end_byte - 1;  in btrfs_del_csums()
671 			truncate_one_csum(root, path, &key, bytenr, len);  in btrfs_del_csums()
672 			if (key.offset < bytenr)  in btrfs_del_csums()
888 	struct btrfs_key key;  in btrfs_extent_item_to_extent_map()  local
895 	btrfs_item_key_to_cpu(leaf, &key, slot);  in btrfs_extent_item_to_extent_map()
896 	extent_start = key.offset;  in btrfs_extent_item_to_extent_map()