linux-kernel - Re: [patch 0/3] add rt_tgsigqueueinfo syscall -V2

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Message-Id: <20090401012547.3B581FC3AB@magilla.sf.frob.com>
Date:	Tue, 31 Mar 2009 18:25:47 -0700 (PDT)
From:	Roland McGrath <roland@...hat.com>
To:	mtk.manpages@...il.com
Cc:	Oleg Nesterov <oleg@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Ulrich Drepper <drepper@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [patch 0/3] add rt_tgsigqueueinfo syscall -V2

> 1) With rt_siqueueinfo(), we can get the PID (TGID) of the sender,

No.  You can get whatever the caller put into the siginfo_t.
Only the si_signo field is set by the kernel.

> With rt_tgsigqueueinfo(), [...]

You still get whatever the caller put into the siginfo_t.


Thanks,
Roland
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