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

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Message-Id: <20090324065858.153BAFC3AB@magilla.sf.frob.com>
Date:	Mon, 23 Mar 2009 23:58:58 -0700 (PDT)
From:	Roland McGrath <roland@...hat.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	mtk.manpages@...il.com, LKML <linux-kernel@...r.kernel.org>,
	Oleg Nesterov <oleg@...sign.ru>, Ingo Molnar <mingo@...e.hu>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Linux API <linux-api@...r.kernel.org>
Subject: Re: [patch 0/3] add rt_tgsigqueueinfo syscall [RESEND]

> > I don't see any rationale for rt_tgsigqueueinfo and rt_sigqueueinfo to
> > differ in their treatment of si_pid/si_uid (whatever that is).  It just
> > seems like common sense that they would match.
> > 
> > Oleg and/or Sukadev have some patches floating around (maybe all in -mm?)
> > that relate to setting those.
> 
> You mean having the same logic as we have in {t,tg,}kill syscalls for
> rt_sigqueueinfo as well ?

I mean just what I said: rt_tgsigqueueinfo's treatment of the siginfo_t
should match rt_sigqueueinfo's.  Make it match rt_sigqueueinfo today and
make sure that if rt_sigqueueinfo changes, then rt_tgsigqueueinfo will
change to match.

> Is there anything else which stands in the way of getting the
> rt_tgsigqueueinfo interface merged ?

I don't see any problem.  But you should at least make sure that Ulrich
likes the syscall interface for implementing pthread_sigqueue or whatever
it will be.


Thanks,
Roland
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