688 static void null_free_sector(struct nullb *nullb, sector_t sector,  in null_free_sector()  argument
697 	idx = sector >> PAGE_SECTORS_SHIFT;  in null_free_sector()
698 	sector_bit = (sector & SECTOR_MASK);  in null_free_sector()
761 	sector_t sector, bool for_write, bool is_cache)  in __null_lookup_page()  argument
768 	idx = sector >> PAGE_SECTORS_SHIFT;  in __null_lookup_page()
769 	sector_bit = (sector & SECTOR_MASK);  in __null_lookup_page()
782 	sector_t sector, bool for_write, bool ignore_cache)  in null_lookup_page()  argument
787 		page = __null_lookup_page(nullb, sector, for_write, true);  in null_lookup_page()
790 	return __null_lookup_page(nullb, sector, for_write, false);  in null_lookup_page()
794 					   sector_t sector, bool ignore_cache)  in null_insert_page()  argument
801 	t_page = null_lookup_page(nullb, sector, true, ignore_cache);  in null_insert_page()
815 	idx = sector >> PAGE_SECTORS_SHIFT;  in null_insert_page()
825 	return null_lookup_page(nullb, sector, true, ignore_cache);  in null_insert_page()
931 	unsigned int off, sector_t sector, size_t n, bool is_fua)  in copy_to_nullb()  argument
944 		offset = (sector & SECTOR_MASK) << SECTOR_SHIFT;  in copy_to_nullb()
945 		t_page = null_insert_page(nullb, sector,  in copy_to_nullb()
956 		__set_bit(sector & SECTOR_MASK, t_page->bitmap);  in copy_to_nullb()
959 			null_free_sector(nullb, sector, true);  in copy_to_nullb()
962 		sector += temp >> SECTOR_SHIFT;  in copy_to_nullb()
968 	unsigned int off, sector_t sector, size_t n)  in copy_from_nullb()  argument
978 		offset = (sector & SECTOR_MASK) << SECTOR_SHIFT;  in copy_from_nullb()
979 		t_page = null_lookup_page(nullb, sector, false,  in copy_from_nullb()
994 		sector += temp >> SECTOR_SHIFT;  in copy_from_nullb()
999 static void null_handle_discard(struct nullb *nullb, sector_t sector, size_t n)  in null_handle_discard()  argument
1006 		null_free_sector(nullb, sector, false);  in null_handle_discard()
1008 			null_free_sector(nullb, sector, true);  in null_handle_discard()
1009 		sector += temp >> SECTOR_SHIFT;  in null_handle_discard()
1036 	unsigned int len, unsigned int off, bool is_write, sector_t sector,  in null_transfer()  argument
1042 		err = copy_from_nullb(nullb, page, off, sector, len);  in null_transfer()
1046 		err = copy_to_nullb(nullb, page, off, sector, len, is_fua);  in null_transfer()
1058 	sector_t sector;  in null_handle_rq()  local
1062 	sector = blk_rq_pos(rq);  in null_handle_rq()
1065 		null_handle_discard(nullb, sector, blk_rq_bytes(rq));  in null_handle_rq()
1073 				     op_is_write(req_op(rq)), sector,  in null_handle_rq()
1079 		sector += len >> SECTOR_SHIFT;  in null_handle_rq()
1092 	sector_t sector;  in null_handle_bio()  local
1096 	sector = bio->bi_iter.bi_sector;  in null_handle_bio()
1099 		null_handle_discard(nullb, sector,  in null_handle_bio()
1108 				     op_is_write(bio_op(bio)), sector,  in null_handle_bio()
1114 		sector += len >> SECTOR_SHIFT;  in null_handle_bio()
1158 						 sector_t sector,  in null_handle_badblocks()  argument
1165 	if (badblocks_check(bb, sector, nr_sectors, &first_bad, &bad_sectors))  in null_handle_badblocks()
1211 static blk_status_t null_handle_cmd(struct nullb_cmd *cmd, sector_t sector,  in null_handle_cmd()  argument
1230 		cmd->error = null_handle_badblocks(cmd, sector, nr_sectors);  in null_handle_cmd()
1239 		cmd->error = null_handle_zoned(cmd, op, sector, nr_sectors);  in null_handle_cmd()
1285 	sector_t sector = bio->bi_iter.bi_sector;  in null_queue_bio()  local
1294 	null_handle_cmd(cmd, sector, nr_sectors, bio_op(bio));  in null_queue_bio()
1329 	sector_t sector = blk_rq_pos(bd->rq);  in null_queue_rq()  local
1358 	return null_handle_cmd(cmd, sector, nr_sectors, req_op(bd->rq));  in null_queue_rq()