unwind_work
int unwind_deferred_init(struct unwind_work *work, unwind_callback_t func);
int unwind_deferred_request(struct unwind_work *work, u64 *cookie);
void unwind_deferred_cancel(struct unwind_work *work);
unwind_deferred_init(struct unwind_work *work, unwind_callback_t func)
unwind_deferred_request(struct unwind_work *work, u64 *timestamp)
static inline void unwind_deferred_cancel(struct unwind_work *work) {}
struct unwind_work;
typedef void (*unwind_callback_t)(struct unwind_work *work,
static void perf_unwind_deferred_callback(struct unwind_work *work,
static struct unwind_work perf_unwind_work;
struct unwind_work *work;
int unwind_deferred_request(struct unwind_work *work, u64 *cookie)
void unwind_deferred_cancel(struct unwind_work *work)
int unwind_deferred_init(struct unwind_work *work, unwind_callback_t func)