/* * fixup_activate is called when: * - an active object is activated * - an unknown object is activated (might be a statically initialized object) * Activation is performed internally by call_rcu(). */ static int rcuhead_fixup_activate(void *addr, enum debug_obj_state state) { struct rcu_head *head = addr; switch (state) { case ODEBUG_STATE_NOTAVAILABLE: /* * This is not really a fixup. We just make sure that it is * tracked in the object tracker. */ debug_object_init(head, &rcuhead_debug_descr); debug_object_activate(head, &rcuhead_debug_descr); return 0; case ODEBUG_STATE_ACTIVE: /* * Ensure that queued callbacks are all executed. * If we detect that we are nested in a RCU read-side critical * section, we should simply fail, otherwise we would deadlock. */ if (rcu_preempt_depth() != 0 || preempt_count() != 0 || irqs_disabled()) { WARN_ON(1); return 0; } rcu_barrier(); rcu_barrier_sched(); rcu_barrier_bh(); debug_object_activate(head, &rcuhead_debug_descr); return 1; default: return 0; } }
/* * fixup_activate is called when: * - an active object is activated * - an unknown object is activated (might be a statically initialized object) */ static int timer_fixup_activate(void *addr, enum debug_obj_state state) { struct tti_timer_list *timer = addr; switch (state) { case ODEBUG_STATE_NOTAVAILABLE: /* * This is not really a fixup. The timer was * statically initialized. We just make sure that it * is tracked in the object tracker. */ if (timer->entry.next == NULL && timer->entry.prev == TIMER_ENTRY_STATIC) { debug_object_init(timer, &timer_debug_descr); debug_object_activate(timer, &timer_debug_descr); return 0; } else { WARN_ON_ONCE(1); } return 0; case ODEBUG_STATE_ACTIVE: WARN_ON(1); default: return 0; } }
/* * fixup_activate is called when: * - an active object is activated * - an unknown object is activated (might be a statically initialized object) * Activation is performed internally by call_rcu(). */ static int rcuhead_fixup_activate(void *addr, enum debug_obj_state state) { struct rcu_head *head = addr; switch (state) { case ODEBUG_STATE_NOTAVAILABLE: /* * This is not really a fixup. We just make sure that it is * tracked in the object tracker. */ debug_object_init(head, &rcuhead_debug_descr); debug_object_activate(head, &rcuhead_debug_descr); return 0; case ODEBUG_STATE_ACTIVE: /* * Ensure that queued callbacks are all executed. * If we detect that we are nested in a RCU read-side critical * section, we should simply fail, otherwise we would deadlock. * In !PREEMPT configurations, there is no way to tell if we are * in a RCU read-side critical section or not, so we never * attempt any fixup and just print a warning. */ #ifndef CONFIG_PREEMPT WARN_ON_ONCE(1); return 0; #endif if (rcu_preempt_depth() != 0 || preempt_count() != 0 || irqs_disabled()) { WARN_ON_ONCE(1); return 0; } rcu_barrier(); rcu_barrier_sched(); rcu_barrier_bh(); debug_object_activate(head, &rcuhead_debug_descr); return 1; default: return 0; } }
/* * fixup_activate is called when: * - an active object is activated * - an unknown object is activated (might be a statically initialized object) * Activation is performed internally by call_rcu(). */ static int rcuhead_fixup_activate(void *addr, enum debug_obj_state state) { struct rcu_head *head = addr; switch (state) { case ODEBUG_STATE_NOTAVAILABLE: /* * This is not really a fixup. We just make sure that it is * tracked in the object tracker. */ debug_object_init(head, &rcuhead_debug_descr); debug_object_activate(head, &rcuhead_debug_descr); return 0; default: return 1; } }
static inline void debug_hrtimer_activate(struct hrtimer *timer) { debug_object_activate(timer, &hrtimer_debug_descr); }
static inline void debug_fence_activate(struct i915_sw_fence *fence) { debug_object_activate(fence, &i915_sw_fence_debug_descr); }
static inline void debug_timer_activate(struct tti_timer_list *timer) { debug_object_activate(timer, &timer_debug_descr); }