296 	struct btrfs_key key;  in btrfs_lookup_csums_range()  local
319 	key.objectid = BTRFS_EXTENT_CSUM_OBJECTID;  in btrfs_lookup_csums_range()
320 	key.offset = start;  in btrfs_lookup_csums_range()
321 	key.type = BTRFS_EXTENT_CSUM_KEY;  in btrfs_lookup_csums_range()
323 	ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);  in btrfs_lookup_csums_range()
328 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0] - 1);  in btrfs_lookup_csums_range()
329 		if (key.objectid == BTRFS_EXTENT_CSUM_OBJECTID &&  in btrfs_lookup_csums_range()
330 		    key.type == BTRFS_EXTENT_CSUM_KEY) {  in btrfs_lookup_csums_range()
331 			offset = (start - key.offset) >>  in btrfs_lookup_csums_range()
350 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in btrfs_lookup_csums_range()
351 		if (key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||  in btrfs_lookup_csums_range()
352 		    key.type != BTRFS_EXTENT_CSUM_KEY ||  in btrfs_lookup_csums_range()
353 		    key.offset > end)  in btrfs_lookup_csums_range()
356 		if (key.offset > start)  in btrfs_lookup_csums_range()
357 			start = key.offset;  in btrfs_lookup_csums_range()
360 		csum_end = key.offset + (size / csum_size) * root->sectorsize;  in btrfs_lookup_csums_range()
383 			offset = (start - key.offset) >>  in btrfs_lookup_csums_range()
510 				       struct btrfs_key *key,  in truncate_one_csum()  argument
522 	csum_end += key->offset;  in truncate_one_csum()
524 	if (key->offset < bytenr && csum_end <= end_byte) {  in truncate_one_csum()
531 		u32 new_size = (bytenr - key->offset) >> blocksize_bits;  in truncate_one_csum()
534 	} else if (key->offset >= bytenr && csum_end > end_byte &&  in truncate_one_csum()
535 		   end_byte > key->offset) {  in truncate_one_csum()
547 		key->offset = end_byte;  in truncate_one_csum()
548 		btrfs_set_item_key_safe(root, path, key);  in truncate_one_csum()
562 	struct btrfs_key key;  in btrfs_del_csums()  local
577 		key.objectid = BTRFS_EXTENT_CSUM_OBJECTID;  in btrfs_del_csums()
578 		key.offset = end_byte - 1;  in btrfs_del_csums()
579 		key.type = BTRFS_EXTENT_CSUM_KEY;  in btrfs_del_csums()
582 		ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_del_csums()
592 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in btrfs_del_csums()
594 		if (key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||  in btrfs_del_csums()
595 		    key.type != BTRFS_EXTENT_CSUM_KEY) {  in btrfs_del_csums()
599 		if (key.offset >= end_byte)  in btrfs_del_csums()
604 		csum_end += key.offset;  in btrfs_del_csums()
611 		if (key.offset >= bytenr && csum_end <= end_byte) {  in btrfs_del_csums()
615 			if (key.offset == bytenr)  in btrfs_del_csums()
617 		} else if (key.offset < bytenr && csum_end > end_byte) {  in btrfs_del_csums()
639 			offset = (bytenr - key.offset) >> blocksize_bits;  in btrfs_del_csums()
649 			key.offset = bytenr;  in btrfs_del_csums()
655 			ret = btrfs_split_item(trans, root, path, &key, offset);  in btrfs_del_csums()
661 			key.offset = end_byte - 1;  in btrfs_del_csums()
663 			truncate_one_csum(root, path, &key, bytenr, len);  in btrfs_del_csums()
664 			if (key.offset < bytenr)  in btrfs_del_csums()