linux-kernel - Re: [RFC][v8][PATCH 0/10] Implement clone3() system call

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Message-ID: <20091014013936.GC27627@count0.beaverton.ibm.com>
Date:	Tue, 13 Oct 2009 18:39:36 -0700
From:	Matt Helsley <matthltc@...ibm.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	randy.dunlap@...cle.com, arnd@...db.de,
	Containers <containers@...ts.linux-foundation.org>,
	Nathan Lynch <nathanl@...tin.ibm.com>,
	linux-kernel@...r.kernel.org, Louis.Rilling@...labs.com,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	kosaki.motohiro@...fujitsu.com, linux-api@...r.kernel.org,
	mingo@...e.hu, torvalds@...ux-foundation.org,
	Alexey Dobriyan <adobriyan@...il.com>, roland@...hat.com,
	Pavel Emelyanov <xemul@...nvz.org>
Subject: Re: [RFC][v8][PATCH 0/10] Implement clone3() system call

On Tue, Oct 13, 2009 at 04:49:05PM -0700, H. Peter Anvin wrote:
> On 10/12/2009 09:49 PM, Sukadev Bhattiprolu wrote:
> > 
> > This patchset implements a new system call, clone3() that lets a process
> > specify the pids of the child process.
> > 
> 
> A system call named clone3() taking two parameters is just too weird to
> live.  No, please.

Except we can't use clone2() because it conflicts on ia64.  Care to propose
a name you would prefer?

Also I was a bit suprised to discover there are plenty of examples where this
convention has not been followed: vm86, lseek64, and mmap2 to name a few. In
fact, of the 46 __NR_foo[[:digit:]]+, 36 break this convention on x86-32.

Cheers,
	-Matt Helsley
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