ww_mutex_lock_interruptible
ret = ww_mutex_lock_interruptible(&lock->mutex, &ctx->ww_ctx);
return ww_mutex_lock_interruptible(&lock->mutex, NULL);
ret = ww_mutex_lock_interruptible(&bo->resv->lock, ticket);
return ww_mutex_lock_interruptible(&obj->lock, ctx);
extern int ww_mutex_lock_interruptible(struct ww_mutex *ww,