From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [RFC][v7][PATCH 8/9]: Define clone2() syscall Date: Tue, 29 Sep 2009 15:19:30 -0700 Message-ID: <4AC287F2.8060603@zytor.com> References: <20090924165548.GA16586@us.ibm.com> <20090924170308.GH16989@us.ibm.com> <200909242343.59903.arnd@arndb.de> <20090925082346.GB4436@localdomain> <20090925105632.GG12824@hawkmoon.kerlabs.com> <20090929180537.GD4625@us.ibm.com> <20090929184023.532DF34@magilla.sf.frob.com> <4AC255A4.4030002@zytor.com> <20090929210207.247b94df@infradead.org> <4AC267C7.4070300@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Linus Torvalds Cc: Arjan van de Ven , Roland McGrath , Sukadev Bhattiprolu , Arnd Bergmann , Containers , Nathan Lynch , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Eric W. Biederman" , mingo-X9Un+BFzKDI@public.gmane.org, Alexey Dobriyan , Pavel Emelyanov , linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kosaki.motohiro-+CUm20s59erQFUHtdCDX3A@public.gmane.org List-Id: linux-api@vger.kernel.org On 09/29/2009 03:11 PM, Linus Torvalds wrote: > > Ok, I agree with that. The kernel side is easy (we have magic calling > conventions there and need to turn registers into arguments anyway before > you get to the shared code), but your point about the user side prototype > is valid. > I think it would also apply to kernel-side munging. It's quite possibly you're right in that clone is such a special case anyway, but it seems pointless to make it more special in the short bus sort of way even if it is possible. Let's just make it another system call. It doesn't have any downside that I can see, might prevent problems, and avoids setting a bad precedent that someone can misinterpret. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html