linux-kernel - Re: Considerations on sched APIs under RT patch

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Message-ID: <1271854601.1776.102.camel@laptop>
Date:	Wed, 21 Apr 2010 14:56:41 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Primiano Tucci <p.tucci@...il.com>
Cc:	linux-kernel@...r.kernel.org, tglx <tglx@...utronix.de>,
	rostedt <rostedt@...dmis.org>
Subject: Re: Considerations on sched APIs under RT patch

On Tue, 2010-04-20 at 23:56 +0200, Primiano Tucci wrote:
> 
> long sched_setaffinity(pid_t pid, const struct cpumask *in_mask) {
>         cpumask_var_t cpus_allowed, new_mask;
>         struct task_struct *p;
>         int retval;
> 
>         get_online_cpus();
> -->     read_lock(&tasklist_lock);

FWIW recent kernels don't use tasklist_lock there anymore.

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