From ca531a0a5e01e5122f67cb6aca8fcbfc70e18e0b Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 24 Oct 2005 14:36:28 +0400 Subject: [PATCH] [PATCH] posix-timers: exit path cleanup No need to rebalance when task exited Signed-off-by: Oleg Nesterov Signed-off-by: Linus Torvalds --- kernel/posix-cpu-timers.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c index ccb04683bf18..92a038064628 100644 --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -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); -- 2.20.1