From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 16 Mar 2017 18:45:47 +0100 (CET) Received: from Galois.linutronix.de ([IPv6:2a01:7a0:2:106d:700::1]:47207 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23991955AbdCPRpkYSXmu (ORCPT ); Thu, 16 Mar 2017 18:45:40 +0100 Received: from localhost ([127.0.0.1]) by Galois.linutronix.de with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1coZPp-0004gf-Aq; Thu, 16 Mar 2017 18:42:21 +0100 Date: Thu, 16 Mar 2017 18:42:39 +0100 (CET) From: Thomas Gleixner To: Till Smejkal cc: Andy Lutomirski , Andy Lutomirski , Richard Henderson , Ivan Kokshaysky , Matt Turner , Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Steven Miao , Richard Kuo , Tony Luck , Fenghua Yu , James Hogan , Ralf Baechle , "James E.J. Bottomley" , Helge Deller , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Martin Schwidefsky , Heiko Carstens , Yoshinori Sato , Rich Felker , "David S. Miller" , Chris Metcalf , Ingo Molnar , "H. Peter Anvin" , X86 ML , Chris Zankel , Max Filippov , Arnd Bergmann , Greg Kroah-Hartman , Laurent Pinchart , Mauro Carvalho Chehab , Pawel Osciak , Marek Szyprowski , Kyungmin Park , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , Cyrille Pitchen , Felipe Balbi , Alexander Viro , Benjamin LaHaise , Nadia Yvette Chambers , Jeff Layton , "J. Bruce Fields" , Peter Zijlstra , Hugh Dickins , Arnaldo Carvalho de Melo , Alexander Shishkin , Jaroslav Kysela , Takashi Iwai , "linux-kernel@vger.kernel.org" , linux-alpha@vger.kernel.org, arcml , "linux-arm-kernel@lists.infradead.org" , adi-buildroot-devel@lists.sourceforge.net, linux-hexagon@vger.kernel.org, "linux-ia64@vger.kernel.org" , linux-metag@vger.kernel.org, Linux MIPS Mailing List , linux-parisc@vger.kernel.org, linuxppc-dev , "linux-s390@vger.kernel.org" , "linux-sh@vger.kernel.org" , sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, Linux Media Mailing List , linux-mtd@lists.infradead.org, USB list , Linux FS Devel , linux-aio@kvack.org, "linux-mm@kvack.org" , Linux API , linux-arch , ALSA development Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces In-Reply-To: <20170316172909.ux4u7dbspwlynsce@arch-dev> Message-ID: References: <20170316172909.ux4u7dbspwlynsce@arch-dev> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 57374 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: tglx@linutronix.de Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On Thu, 16 Mar 2017, Till Smejkal wrote: > On Thu, 16 Mar 2017, Thomas Gleixner wrote: > > Why do we need yet another mechanism to represent something which looks > > like a file instead of simply using existing mechanisms and extend them? > > You are right. I also recognized during the discussion with Andy, Chris, > Matthew, Luck, Rich and the others that there are already other > techniques in the Linux kernel that can achieve the same functionality > when combined. As I said also to the others, I will drop the VAS segments > for future versions. The first class virtual address space feature was > the more interesting part of the patchset anyways. While you are at it, could you please drop this 'first class' marketing as well? It has zero technical value, really. Thanks, tglx From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from Galois.linutronix.de ([IPv6:2a01:7a0:2:106d:700::1]:47207 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23991955AbdCPRpkYSXmu (ORCPT ); Thu, 16 Mar 2017 18:45:40 +0100 Date: Thu, 16 Mar 2017 18:42:39 +0100 (CET) From: Thomas Gleixner Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces In-Reply-To: <20170316172909.ux4u7dbspwlynsce@arch-dev> Message-ID: References: <20170316172909.ux4u7dbspwlynsce@arch-dev> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-subscribe: List-owner: List-post: List-archive: To: Till Smejkal Cc: Andy Lutomirski , Andy Lutomirski , Richard Henderson , Ivan Kokshaysky , Matt Turner , Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Steven Miao , Richard Kuo , Tony Luck , Fenghua Yu , James Hogan , Ralf Baechle , "James E.J. Bottomley" , Helge Deller , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Martin Schwidefsky , Heiko Carstens , Yoshinori Sato , Rich Felker , "David S. Miller" , Chris Metcalf , Ingo Molnar , "H. Peter Anvin" , X86 ML , Chris Zankel , Max Filippov , Arnd Bergmann , Greg Kroah-Hartman , Laurent Pinchart , Mauro Carvalho Chehab , Pawel Osciak , Marek Szyprowski , Kyungmin Park , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , Cyrille Pitchen , Felipe Balbi , Alexander Viro , Benjamin LaHaise , Nadia Yvette Chambers , Jeff Layton , "J. Bruce Fields" , Peter Zijlstra , Hugh Dickins , Arnaldo Carvalho de Melo , Alexander Shishkin , Jaroslav Kysela , Takashi Iwai , "linux-kernel@vger.kernel.org" , linux-alpha@vger.kernel.org, arcml , "linux-arm-kernel@lists.infradead.org" , adi-buildroot-devel@lists.sourceforge.net, linux-hexagon@vger.kernel.org, "linux-ia64@vger.kernel.org" , linux-metag@vger.kernel.org, Linux MIPS Mailing List , linux-parisc@vger.kernel.org, linuxppc-dev , "linux-s390@vger.kernel.org" , "linux-sh@vger.kernel.org" , sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, Linux Media Mailing List , linux-mtd@lists.infradead.org, USB list , Linux FS Devel , linux-aio@kvack.org, "linux-mm@kvack.org" , Linux API , linux-arch , ALSA development Message-ID: <20170316174239.qdC4jCUkd6zsdedRf6vf8TrHRD4L40-U_jN68ITAbBA@z> On Thu, 16 Mar 2017, Till Smejkal wrote: > On Thu, 16 Mar 2017, Thomas Gleixner wrote: > > Why do we need yet another mechanism to represent something which looks > > like a file instead of simply using existing mechanisms and extend them? > > You are right. I also recognized during the discussion with Andy, Chris, > Matthew, Luck, Rich and the others that there are already other > techniques in the Linux kernel that can achieve the same functionality > when combined. As I said also to the others, I will drop the VAS segments > for future versions. The first class virtual address space feature was > the more interesting part of the patchset anyways. While you are at it, could you please drop this 'first class' marketing as well? It has zero technical value, really. Thanks, tglx