brd_device
static void brd_free_pages(struct brd_device *brd)
static bool brd_rw_bvec(struct brd_device *brd, struct bio *bio)
static void brd_do_discard(struct brd_device *brd, sector_t sector, u32 size)
struct brd_device *brd = bio->bi_bdev->bd_disk->private_data;
static struct brd_device *brd_find_or_alloc_device(int i)
struct brd_device *brd;
static void brd_free_device(struct brd_device *brd)
struct brd_device *brd;
struct brd_device *brd, *next;
static struct page *brd_lookup_page(struct brd_device *brd, sector_t sector)
static struct page *brd_insert_page(struct brd_device *brd, sector_t sector,