From e636c8d336489bf3eed5878299e6cc045bbad077 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:17:29 +0000
Subject: [PATCH] debug lk
---
kernel/include/linux/sched/cputime.h | 12 +++++++-----
1 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/kernel/include/linux/sched/cputime.h b/kernel/include/linux/sched/cputime.h
index 53f883f..6c9f19a 100644
--- a/kernel/include/linux/sched/cputime.h
+++ b/kernel/include/linux/sched/cputime.h
@@ -61,8 +61,7 @@
* Thread group CPU time accounting.
*/
void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times);
-void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
-
+void thread_group_sample_cputime(struct task_struct *tsk, u64 *samples);
/*
* The following are functions that support scheduler-internal time accounting.
@@ -71,7 +70,7 @@
*/
/**
- * get_running_cputimer - return &tsk->signal->cputimer if cputimer is running
+ * get_running_cputimer - return &tsk->signal->cputimer if cputimers are active
*
* @tsk: Pointer to target task.
*/
@@ -81,8 +80,11 @@
{
struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
- /* Check if cputimer isn't running. This is accessed without locking. */
- if (!READ_ONCE(cputimer->running))
+ /*
+ * Check whether posix CPU timers are active. If not the thread
+ * group accounting is not active either. Lockless check.
+ */
+ if (!READ_ONCE(tsk->signal->posix_cputimers.timers_active))
return NULL;
/*
--
Gitblit v1.6.2