758 static void null_free_sector(struct nullb *nullb, sector_t sector,  in null_free_sector()  argument
767 	idx = sector >> PAGE_SECTORS_SHIFT;  in null_free_sector()
768 	sector_bit = (sector & SECTOR_MASK);  in null_free_sector()
831 	sector_t sector, bool for_write, bool is_cache)  in __null_lookup_page()  argument
838 	idx = sector >> PAGE_SECTORS_SHIFT;  in __null_lookup_page()
839 	sector_bit = (sector & SECTOR_MASK);  in __null_lookup_page()
852 	sector_t sector, bool for_write, bool ignore_cache)  in null_lookup_page()  argument
857 		page = __null_lookup_page(nullb, sector, for_write, true);  in null_lookup_page()
860 	return __null_lookup_page(nullb, sector, for_write, false);  in null_lookup_page()
864 					   sector_t sector, bool ignore_cache)  in null_insert_page()  argument
871 	t_page = null_lookup_page(nullb, sector, true, ignore_cache);  in null_insert_page()
885 	idx = sector >> PAGE_SECTORS_SHIFT;  in null_insert_page()
895 	return null_lookup_page(nullb, sector, true, ignore_cache);  in null_insert_page()
1001 	unsigned int off, sector_t sector, size_t n, bool is_fua)  in copy_to_nullb()  argument
1014 		offset = (sector & SECTOR_MASK) << SECTOR_SHIFT;  in copy_to_nullb()
1015 		t_page = null_insert_page(nullb, sector,  in copy_to_nullb()
1026 		__set_bit(sector & SECTOR_MASK, t_page->bitmap);  in copy_to_nullb()
1029 			null_free_sector(nullb, sector, true);  in copy_to_nullb()
1032 		sector += temp >> SECTOR_SHIFT;  in copy_to_nullb()
1038 	unsigned int off, sector_t sector, size_t n)  in copy_from_nullb()  argument
1048 		offset = (sector & SECTOR_MASK) << SECTOR_SHIFT;  in copy_from_nullb()
1049 		t_page = null_lookup_page(nullb, sector, false,  in copy_from_nullb()
1064 		sector += temp >> SECTOR_SHIFT;  in copy_from_nullb()
1079 static void null_handle_discard(struct nullb *nullb, sector_t sector, size_t n)  in null_handle_discard()  argument
1086 		null_free_sector(nullb, sector, false);  in null_handle_discard()
1088 			null_free_sector(nullb, sector, true);  in null_handle_discard()
1089 		sector += temp >> SECTOR_SHIFT;  in null_handle_discard()
1116 	unsigned int len, unsigned int off, bool is_write, sector_t sector,  in null_transfer()  argument
1126 				sector, len);  in null_transfer()
1130 				sector, valid_len);  in null_transfer()
1140 		err = copy_to_nullb(nullb, page, off, sector, len, is_fua);  in null_transfer()
1152 	sector_t sector;  in null_handle_rq()  local
1156 	sector = blk_rq_pos(rq);  in null_handle_rq()
1159 		null_handle_discard(nullb, sector, blk_rq_bytes(rq));  in null_handle_rq()
1167 				     op_is_write(req_op(rq)), sector,  in null_handle_rq()
1173 		sector += len >> SECTOR_SHIFT;  in null_handle_rq()
1186 	sector_t sector;  in null_handle_bio()  local
1190 	sector = bio->bi_iter.bi_sector;  in null_handle_bio()
1193 		null_handle_discard(nullb, sector,  in null_handle_bio()
1202 				     op_is_write(bio_op(bio)), sector,  in null_handle_bio()
1208 		sector += len >> SECTOR_SHIFT;  in null_handle_bio()
1252 						 sector_t sector,  in null_handle_badblocks()  argument
1259 	if (badblocks_check(bb, sector, nr_sectors, &first_bad, &bad_sectors))  in null_handle_badblocks()
1333 			      enum req_opf op, sector_t sector,  in null_process_cmd()  argument
1340 		ret = null_handle_badblocks(cmd, sector, nr_sectors);  in null_process_cmd()
1351 static blk_status_t null_handle_cmd(struct nullb_cmd *cmd, sector_t sector,  in null_handle_cmd()  argument
1370 		sts = null_process_zoned_cmd(cmd, op, sector, nr_sectors);  in null_handle_cmd()
1372 		sts = null_process_cmd(cmd, op, sector, nr_sectors);  in null_handle_cmd()
1422 	sector_t sector = bio->bi_iter.bi_sector;  in null_submit_bio()  local
1431 	null_handle_cmd(cmd, sector, nr_sectors, bio_op(bio));  in null_submit_bio()
1478 	sector_t sector = blk_rq_pos(bd->rq);  in null_queue_rq()  local
1509 	return null_handle_cmd(cmd, sector, nr_sectors, req_op(bd->rq));  in null_queue_rq()