linux-kernel - Re: [RFC patch 0/3] signals: add rt

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Message-ID: <alpine.LFD.1.10.0810010950320.5549@apollo.tec.linutronix.de>
Date:	Wed, 1 Oct 2008 09:51:44 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Roland McGrath <roland@...hat.com>
cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Ulrich Drepper <drepper@...hat.com>,
	Oleg Nesterov <oleg@...sign.ru>,
	Michael Kerrisk <mtk.manpages@...glemail.com>
Subject: Re: [RFC patch 0/3] signals: add rt_tgsigqueueinfo syscall

On Tue, 30 Sep 2008, Roland McGrath wrote:

> The core of this looks fine to me.  Presumably this would be expressed in
> userland as pthread_sigqueue.

Yes, that would match the pthread_kill then.

> You are missing compat_sys_rt_tgsigqueueinfo for e.g. the
> arch/x86/ia32/ia32entry.S table.

Duh, did not think about that.
 
> The clean way to do that would be a do_rt_tgsigqueueinfo taking
> the siginfo_t * (not __user).  That is, just split out the copy_from_user,
> so compat_sys_rt_tgsigqueueinfo does copy_siginfo_from_user32 instead.

Will do.

Thanks,

	tglx
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