55 static struct page *brd_lookup_page(struct brd_device *brd, sector_t sector)  in brd_lookup_page()  argument
72 	idx = sector >> PAGE_SECTORS_SHIFT; /* sector to page index */  in brd_lookup_page()
86 static struct page *brd_insert_page(struct brd_device *brd, sector_t sector)  in brd_insert_page()  argument
92 	page = brd_lookup_page(brd, sector);  in brd_insert_page()
116 	idx = sector >> PAGE_SECTORS_SHIFT;  in brd_insert_page()
171 static int copy_to_brd_setup(struct brd_device *brd, sector_t sector, size_t n)  in copy_to_brd_setup()  argument
173 	unsigned int offset = (sector & (PAGE_SECTORS-1)) << SECTOR_SHIFT;  in copy_to_brd_setup()
177 	if (!brd_insert_page(brd, sector))  in copy_to_brd_setup()
180 		sector += copy >> SECTOR_SHIFT;  in copy_to_brd_setup()
181 		if (!brd_insert_page(brd, sector))  in copy_to_brd_setup()
191 			sector_t sector, size_t n)  in copy_to_brd()  argument
195 	unsigned int offset = (sector & (PAGE_SECTORS-1)) << SECTOR_SHIFT;  in copy_to_brd()
199 	page = brd_lookup_page(brd, sector);  in copy_to_brd()
208 		sector += copy >> SECTOR_SHIFT;  in copy_to_brd()
210 		page = brd_lookup_page(brd, sector);  in copy_to_brd()
223 			sector_t sector, size_t n)  in copy_from_brd()  argument
227 	unsigned int offset = (sector & (PAGE_SECTORS-1)) << SECTOR_SHIFT;  in copy_from_brd()
231 	page = brd_lookup_page(brd, sector);  in copy_from_brd()
241 		sector += copy >> SECTOR_SHIFT;  in copy_from_brd()
243 		page = brd_lookup_page(brd, sector);  in copy_from_brd()
258 			sector_t sector)  in brd_do_bvec()  argument
264 		err = copy_to_brd_setup(brd, sector, len);  in brd_do_bvec()
271 		copy_from_brd(mem + off, brd, sector, len);  in brd_do_bvec()
275 		copy_to_brd(brd, mem + off, sector, len);  in brd_do_bvec()
287 	sector_t sector;  in brd_make_request()  local
290 	sector = bio->bi_iter.bi_sector;  in brd_make_request()
299 				  bio_op(bio), sector);  in brd_make_request()
302 		sector += len >> SECTOR_SHIFT;  in brd_make_request()
312 static int brd_rw_page(struct block_device *bdev, sector_t sector,  in brd_rw_page()  argument
320 	err = brd_do_bvec(brd, page, PAGE_SIZE, 0, op, sector);  in brd_rw_page()