701 static void null_free_sector(struct nullb *nullb, sector_t sector,  in null_free_sector()  argument
710 	idx = sector >> PAGE_SECTORS_SHIFT;  in null_free_sector()
711 	sector_bit = (sector & SECTOR_MASK);  in null_free_sector()
774 	sector_t sector, bool for_write, bool is_cache)  in __null_lookup_page()  argument
781 	idx = sector >> PAGE_SECTORS_SHIFT;  in __null_lookup_page()
782 	sector_bit = (sector & SECTOR_MASK);  in __null_lookup_page()
795 	sector_t sector, bool for_write, bool ignore_cache)  in null_lookup_page()  argument
800 		page = __null_lookup_page(nullb, sector, for_write, true);  in null_lookup_page()
803 	return __null_lookup_page(nullb, sector, for_write, false);  in null_lookup_page()
807 					   sector_t sector, bool ignore_cache)  in null_insert_page()  argument
814 	t_page = null_lookup_page(nullb, sector, true, ignore_cache);  in null_insert_page()
828 	idx = sector >> PAGE_SECTORS_SHIFT;  in null_insert_page()
838 	return null_lookup_page(nullb, sector, true, ignore_cache);  in null_insert_page()
944 	unsigned int off, sector_t sector, size_t n, bool is_fua)  in copy_to_nullb()  argument
957 		offset = (sector & SECTOR_MASK) << SECTOR_SHIFT;  in copy_to_nullb()
958 		t_page = null_insert_page(nullb, sector,  in copy_to_nullb()
969 		__set_bit(sector & SECTOR_MASK, t_page->bitmap);  in copy_to_nullb()
972 			null_free_sector(nullb, sector, true);  in copy_to_nullb()
975 		sector += temp >> SECTOR_SHIFT;  in copy_to_nullb()
981 	unsigned int off, sector_t sector, size_t n)  in copy_from_nullb()  argument
991 		offset = (sector & SECTOR_MASK) << SECTOR_SHIFT;  in copy_from_nullb()
992 		t_page = null_lookup_page(nullb, sector, false,  in copy_from_nullb()
1007 		sector += temp >> SECTOR_SHIFT;  in copy_from_nullb()
1012 static void null_handle_discard(struct nullb *nullb, sector_t sector, size_t n)  in null_handle_discard()  argument
1019 		null_free_sector(nullb, sector, false);  in null_handle_discard()
1021 			null_free_sector(nullb, sector, true);  in null_handle_discard()
1022 		sector += temp >> SECTOR_SHIFT;  in null_handle_discard()
1049 	unsigned int len, unsigned int off, bool is_write, sector_t sector,  in null_transfer()  argument
1055 		err = copy_from_nullb(nullb, page, off, sector, len);  in null_transfer()
1059 		err = copy_to_nullb(nullb, page, off, sector, len, is_fua);  in null_transfer()
1071 	sector_t sector;  in null_handle_rq()  local
1075 	sector = blk_rq_pos(rq);  in null_handle_rq()
1078 		null_handle_discard(nullb, sector, blk_rq_bytes(rq));  in null_handle_rq()
1086 				     op_is_write(req_op(rq)), sector,  in null_handle_rq()
1092 		sector += len >> SECTOR_SHIFT;  in null_handle_rq()
1105 	sector_t sector;  in null_handle_bio()  local
1109 	sector = bio->bi_iter.bi_sector;  in null_handle_bio()
1112 		null_handle_discard(nullb, sector,  in null_handle_bio()
1121 				     op_is_write(bio_op(bio)), sector,  in null_handle_bio()
1127 		sector += len >> SECTOR_SHIFT;  in null_handle_bio()
1216 		sector_t sector, size, first_bad;  in null_handle_cmd()  local
1222 			sector = cmd->bio->bi_iter.bi_sector;  in null_handle_cmd()
1228 			sector = blk_rq_pos(cmd->rq);  in null_handle_cmd()
1231 		if (!is_flush && badblocks_check(&nullb->dev->badblocks, sector,  in null_handle_cmd()
1254 		sector_t sector;  in null_handle_cmd()  local
1260 			sector = cmd->bio->bi_iter.bi_sector;  in null_handle_cmd()
1264 			sector = blk_rq_pos(cmd->rq);  in null_handle_cmd()
1269 			null_zone_write(cmd, sector, nr_sectors);  in null_handle_cmd()
1271 			null_zone_reset(cmd, sector);  in null_handle_cmd()