posix-cpu-timers: Sample directly in timer check (a324956f) · Commits · 戴 / test

The thread group accounting is active, otherwise the expiry function would not be running. Sample the thread group time directly. Signed-off-by:

kernel/time/posix-cpu-timers.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -921,9 +921,10 @@ static void check_process_timers(struct task_struct *tsk,
		sig->cputimer.checking_timer = true;

		/*
		* Collect the current process totals.
		* Collect the current process totals. Group accounting is active
		* so the sample can be taken directly.
		*/
		thread_group_cputimer(tsk, &cputime);
		sample_cputime_atomic(&cputime, &sig->cputimer.cputime_atomic);
		utime = cputime.utime;
		ptime = utime + cputime.stime;
		sum_sched_runtime = cputime.sum_exec_runtime;