bop_ring_buffer
static void brb_init(struct bop_ring_buffer *brb)
static bool brb_empty(struct bop_ring_buffer *brb)
static unsigned int brb_next(struct bop_ring_buffer *brb, unsigned int old)
static int brb_push(struct bop_ring_buffer *brb,
static int brb_peek(struct bop_ring_buffer *brb, struct block_op *result)
static int brb_pop(struct bop_ring_buffer *brb)
struct bop_ring_buffer uncommitted;