725 	cursor->resid = min_t(size_t, length, data->bio_length);  in ceph_msg_data_bio_cursor_init()
727 	if (cursor->resid < it->iter.bi_size)  in ceph_msg_data_bio_cursor_init()
728 		it->iter.bi_size = cursor->resid;  in ceph_msg_data_bio_cursor_init()
730 	BUG_ON(cursor->resid < bio_iter_len(it->bio, it->iter));  in ceph_msg_data_bio_cursor_init()
751 	BUG_ON(bytes > cursor->resid);  in ceph_msg_data_bio_advance()
753 	cursor->resid -= bytes;  in ceph_msg_data_bio_advance()
756 	if (!cursor->resid)  in ceph_msg_data_bio_advance()
766 		if (cursor->resid < it->iter.bi_size)  in ceph_msg_data_bio_advance()
767 			it->iter.bi_size = cursor->resid;  in ceph_msg_data_bio_advance()
770 	BUG_ON(cursor->resid < bio_iter_len(it->bio, it->iter));  in ceph_msg_data_bio_advance()
781 	cursor->resid = min_t(size_t, length, data->bvec_pos.iter.bi_size);  in ceph_msg_data_bvecs_cursor_init()
783 	cursor->bvec_iter.bi_size = cursor->resid;  in ceph_msg_data_bvecs_cursor_init()
785 	BUG_ON(cursor->resid < bvec_iter_len(bvecs, cursor->bvec_iter));  in ceph_msg_data_bvecs_cursor_init()
806 	BUG_ON(bytes > cursor->resid);  in ceph_msg_data_bvecs_advance()
808 	cursor->resid -= bytes;  in ceph_msg_data_bvecs_advance()
811 	if (!cursor->resid)  in ceph_msg_data_bvecs_advance()
818 	BUG_ON(cursor->resid < bvec_iter_len(bvecs, cursor->bvec_iter));  in ceph_msg_data_bvecs_advance()
837 	cursor->resid = min(length, data->length);  in ceph_msg_data_pages_cursor_init()
858 	*length = min_t(size_t, cursor->resid, PAGE_SIZE - *page_offset);  in ceph_msg_data_pages_next()
871 	cursor->resid -= bytes;  in ceph_msg_data_pages_advance()
876 	if (!cursor->resid)  in ceph_msg_data_pages_advance()
909 	cursor->resid = min(length, pagelist->length);  in ceph_msg_data_pagelist_cursor_init()
927 	BUG_ON(cursor->offset + cursor->resid != pagelist->length);  in ceph_msg_data_pagelist_next()
931 	*length = min_t(size_t, cursor->resid, PAGE_SIZE - *page_offset);  in ceph_msg_data_pagelist_next()
946 	BUG_ON(cursor->offset + cursor->resid != pagelist->length);  in ceph_msg_data_pagelist_advance()
951 	cursor->resid -= bytes;  in ceph_msg_data_pagelist_advance()
957 	if (!cursor->resid)  in ceph_msg_data_pagelist_advance()
1049 	BUG_ON(*length > cursor->resid);  in ceph_msg_data_next()
1062 	BUG_ON(bytes > cursor->resid);  in ceph_msg_data_advance()
1085 	if (!cursor->resid && cursor->total_resid) {  in ceph_msg_data_advance()