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-rw-r--r--include/asm-generic/preempt.h14
-rw-r--r--include/trace/events/sched.h2
2 files changed, 15 insertions, 1 deletions
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index a1fc6590a743..8100b1ec1715 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -28,6 +28,20 @@ static __always_inline void preempt_count_set(int pc)
}
/*
+ * must be macros to avoid header recursion hell
+ */
+#define task_preempt_count(p) \
+ (task_thread_info(p)->preempt_count & ~PREEMPT_NEED_RESCHED)
+
+#define init_task_preempt_count(p) do { \
+ task_thread_info(p)->preempt_count = PREEMPT_DISABLED; \
+} while (0)
+
+#define init_idle_preempt_count(p, cpu) do { \
+ task_thread_info(p)->preempt_count = PREEMPT_ENABLED; \
+} while (0)
+
+/*
* We fold the NEED_RESCHED bit into the preempt count such that
* preempt_enable() can decrement and test for needing to reschedule with a
* single instruction.
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 2e7d9947a10d..613381bcde40 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -100,7 +100,7 @@ static inline long __trace_sched_switch_state(struct task_struct *p)
/*
* For all intents and purposes a preempted task is a running task.
*/
- if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
+ if (task_preempt_count(p) & PREEMPT_ACTIVE)
state = TASK_RUNNING | TASK_STATE_MAX;
#endif