From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulrich Drepper Subject: Re: [PATCH] alternative to sys_indirect, part 1 Date: Thu, 24 Apr 2008 10:31:29 -0700 Message-ID: <4810C3F1.9060009@redhat.com> References: <200804240403.m3O43us8028699@devserv.devel.redhat.com> <20080424112514.055d8071@the-village.bc.nu> <20080424.083908.147395158.davem@davemloft.net> <517f3f820804240903y788102bar5c7d1fa9bcee1c8a@mail.gmail.com> <20080424164226.415cedeb@the-village.bc.nu> <517f3f820804240948u788745f4s7a5dd4e7417ffeaf@mail.gmail.com> <4810C16A.3000606@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Michael Kerrisk , Alan Cox , David Miller , torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, "akpm@linux-foundation.org Jakub Jelinek" To: "H. Peter Anvin" Return-path: Received: from mx1.redhat.com ([66.187.233.31]:59433 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751565AbYDXRcS (ORCPT ); Thu, 24 Apr 2008 13:32:18 -0400 In-Reply-To: <4810C16A.3000606@zytor.com> Sender: netdev-owner@vger.kernel.org List-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 H. Peter Anvin wrote: > sys_indirect is a total red herring here, since it won't help one iot= a > making the userspace interface comprehensible - it just introduces a > different calling convention that the C library will have to thunk. Nobody ever suggested that sys_indirect is in any way visible at the userlevel. It's only meant to solve the problem of changing many syscalls (and hence touch lots of arch-specific code). Again, as said several times, it could easily be used to fix the existing signalfd and eventfd syscalls without any arch-specific changes and no userlevel interface changes (the latter since we already have the correct interfa= ce). Yes, you don't like sys_indirect, we know it. But don't deliberately misrepresent the approach. - -- =E2=9E=A7 Ulrich Drepper =E2=9E=A7 Red Hat, Inc. =E2=9E=A7 444 Castro S= t =E2=9E=A7 Mountain View, CA =E2=9D=96 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) iD8DBQFIEMPx2ijCOnn/RHQRAr7uAJ0aHkZ+bbjk2nsMhhN2xzslA/yhKgCghi8r 9PZw8zfW5fxTVTfrbsHIII0=3D =3DSmAT -----END PGP SIGNATURE-----