From b18b6a9cef7f30e9a8b7738d5fc8d568cf660855 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Sat, 21 Jan 2017 00:09:08 -0500 Subject: timers: Omit POSIX timer stuff from task_struct when disabled When CONFIG_POSIX_TIMERS is disabled, it is preferable to remove related structures from struct task_struct and struct signal_struct as they won't contain anything useful and shouldn't be relied upon by mistake. Code still referencing those structures is also disabled here. Signed-off-by: Nicolas Pitre Signed-off-by: John Stultz --- kernel/sched/rt.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'kernel/sched/rt.c') diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 2516b8df6dbb..a688a8206727 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -2246,6 +2246,7 @@ prio_changed_rt(struct rq *rq, struct task_struct *p, int oldprio) } } +#ifdef CONFIG_POSIX_TIMERS static void watchdog(struct rq *rq, struct task_struct *p) { unsigned long soft, hard; @@ -2267,6 +2268,9 @@ static void watchdog(struct rq *rq, struct task_struct *p) p->cputime_expires.sched_exp = p->se.sum_exec_runtime; } } +#else +static inline void watchdog(struct rq *rq, struct task_struct *p) { } +#endif static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued) { -- cgit v1.2.3