linux-kernel - Re: [Patch 4/7] softirq: Use hotplug thread infrastructure

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Message-ID: <CAAmzW4OhKu=Xwt1S1ABs-fZvLRq=DauXPXjWZqCJb1n1Q7dWXA@mail.gmail.com>
Date:	Wed, 25 Jul 2012 23:21:15 +0900
From:	JoonSoo Kim <js1304@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [Patch 4/7] softirq: Use hotplug thread infrastructure

2012/7/16 Thomas Gleixner <tglx@...utronix.de>:
> -               static const struct sched_param param = {
> -                       .sched_priority = MAX_RT_PRIO-1
> -               };
> -
> -               p = per_cpu(ksoftirqd, hotcpu);
> -               per_cpu(ksoftirqd, hotcpu) = NULL;
> -               sched_setscheduler_nocheck(p, SCHED_FIFO, &param);
> -               kthread_stop(p);
> +               int hotcpu = (unsigned long)hcpu;
> +
>                 takeover_tasklets(hotcpu);
>                 break;

Currently, "int hotcpu = (unsigned long)hcpu;" is somewhat strange.
"takeover_tasklets((unsigned long)hcpu)" is sufficient for me.
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