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Commit ca531a0a authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds
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[PATCH] posix-timers: exit path cleanup 



No need to rebalance when task exited

Signed-off-by: default avatarOleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 3de463c7

kernel/posix-cpu-timers.c

+6 −0
Original line number Diff line number Diff line
@@ -486,6 +486,9 @@ static void process_timer_rebalance(struct task_struct *p, 
 	struct task_struct *t = p;

	unsigned int nthreads = atomic_read(&p->signal->live);



	if (!nthreads)

		return;



	switch (clock_idx) {

	default:

		BUG();
@@ -1160,6 +1163,9 @@ static void check_process_timers(struct task_struct *tsk, 
		unsigned long long sched_left, sched;

		const unsigned int nthreads = atomic_read(&sig->live);



		if (!nthreads)

			return;



		prof_left = cputime_sub(prof_expires, utime);

		prof_left = cputime_sub(prof_left, stime);

		prof_left = cputime_div(prof_left, nthreads);