From dad1c65c8000f4485d8602e1875ded77e0d72133 Mon Sep 17 00:00:00 2001 From: Con Kolivas Date: Tue, 8 Nov 2005 21:38:57 -0800 Subject: [PATCH] [PATCH] sched: account rt tasks in prio_bias() Real time tasks' effect on prio_bias should be based on their real time priority level instead of their static_prio which is based on nice. Signed-off-by: Con Kolivas Cc: Ingo Molnar Cc: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/sched.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index e1f57bd5aaa6..d9dbf8ee6ca4 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -661,21 +661,21 @@ static int effective_prio(task_t *p) } #ifdef CONFIG_SMP -static inline void inc_prio_bias(runqueue_t *rq, int static_prio) +static inline void inc_prio_bias(runqueue_t *rq, int prio) { - rq->prio_bias += MAX_PRIO - static_prio; + rq->prio_bias += MAX_PRIO - prio; } -static inline void dec_prio_bias(runqueue_t *rq, int static_prio) +static inline void dec_prio_bias(runqueue_t *rq, int prio) { - rq->prio_bias -= MAX_PRIO - static_prio; + rq->prio_bias -= MAX_PRIO - prio; } #else -static inline void inc_prio_bias(runqueue_t *rq, int static_prio) +static inline void inc_prio_bias(runqueue_t *rq, int prio) { } -static inline void dec_prio_bias(runqueue_t *rq, int static_prio) +static inline void dec_prio_bias(runqueue_t *rq, int prio) { } #endif @@ -683,13 +683,19 @@ static inline void dec_prio_bias(runqueue_t *rq, int static_prio) static inline void inc_nr_running(task_t *p, runqueue_t *rq) { rq->nr_running++; - inc_prio_bias(rq, p->static_prio); + if (rt_task(p)) + inc_prio_bias(rq, p->prio); + else + inc_prio_bias(rq, p->static_prio); } static inline void dec_nr_running(task_t *p, runqueue_t *rq) { rq->nr_running--; - dec_prio_bias(rq, p->static_prio); + if (rt_task(p)) + dec_prio_bias(rq, p->prio); + else + dec_prio_bias(rq, p->static_prio); } /* -- 2.20.1