linux-kernel - Re: [patch] BFS 420: a tiny step forward

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Message-ID: <CAJd=RBA=mvMGQgdKgW26dgd8nK2-_dW_epQLwbjOo2Zx2gsbeg@mail.gmail.com>
Date:	Thu, 31 May 2012 20:15:09 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Emmanuel Benisty <benisty.e@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [patch] BFS 420: a tiny step forward

On Thu, May 31, 2012 at 3:12 PM, Emmanuel Benisty <benisty.e@...il.com> wrote:
>
> This is what happens with Greg's 3.3.7 + Con's bfs-420 + your
> bfs-420-421 patches, any idea?
>
>  CC      kernel/sched/bfs.o
> kernel/sched/bfs.c: In function 'try_preempt':
> kernel/sched/bfs.c:1450:2: error: incompatible type for argument 2 of
> 'cpumask_next_and'
> include/linux/cpumask.h:192:5: note: expected 'const struct cpumask *'
> but argument is of type 'cpumask_t'
> kernel/sched/bfs.c:1450:2: error: incompatible type for argument 3 of
> 'cpumask_next_and'
> include/linux/cpumask.h:192:5: note: expected 'const struct cpumask *'
> but argument is of type 'cpumask_t'
> kernel/sched/bfs.c:1450:2: warning: left-hand operand of comma
> expression has no effect
> make[2]: *** [kernel/sched/bfs.o] Error 1
> make[1]: *** [kernel/sched] Error 2
> make: *** [kernel] Error 2
>

My bad, lets try the follwoing fix /hd


--- a/kernel/sched/bfs.c	Wed May 30 21:04:10 2012
+++ b/kernel/sched/bfs.c	Thu May 31 20:05:44 2012
@@ -1447,7 +1447,7 @@ static void try_preempt(struct task_stru
 	highest_prio = p->prio;
 	latest_deadline = p->deadline;

-	for_each_cpu_and(cpu, cpu_online_map, p->cpus_allowed) {
+	for_each_cpu_and(cpu, cpu_online_mask, tsk_cpus_allowed(p)) {
 		struct rq *rq;
 		int rq_prio;

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