From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50311C00A89 for ; Fri, 30 Oct 2020 07:25:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EFBC422228 for ; Fri, 30 Oct 2020 07:25:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725962AbgJ3HZQ (ORCPT ); Fri, 30 Oct 2020 03:25:16 -0400 Received: from verein.lst.de ([213.95.11.211]:51843 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725780AbgJ3HZP (ORCPT ); Fri, 30 Oct 2020 03:25:15 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 1A01067373; Fri, 30 Oct 2020 08:25:08 +0100 (CET) Date: Fri, 30 Oct 2020 08:25:08 +0100 From: Christoph Hellwig To: Thomas Gleixner Cc: LKML , linux-arch@vger.kernel.org, Linus Torvalds , Peter Zijlstra , Paul McKenney , David Airlie , Daniel Vetter , Ard Biesheuvel , Herbert Xu , Christoph Hellwig , Sebastian Andrzej Siewior , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Andrew Morton , linux-mm@kvack.org, x86@kernel.org, Vineet Gupta , linux-snps-arc@lists.infradead.org, Russell King , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, Guo Ren , linux-csky@vger.kernel.org, Michal Simek , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Nick Hu , Greentime Hu , Vincent Chen , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , sparclinux@vger.kernel.org, Chris Zankel , Max Filippov , linux-xtensa@linux-xtensa.org Subject: Re: [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends Message-ID: <20201030072508.GA18471@lst.de> References: <20201029221806.189523375@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201029221806.189523375@linutronix.de> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Thu, Oct 29, 2020 at 11:18:06PM +0100, Thomas Gleixner wrote: > This is achieved by: ... > > - Consolidating all kmap atomic implementations in generic code ... > Though I wanted to share the current state of affairs before investigating > that further. If there is consensus in going forward with this, I'll have a > deeper look into this issue. I think the consolidation is a winner no matter where we go next. Maybe split it out in a prep series so we can get it in ASAP? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70B47C4741F for ; Fri, 30 Oct 2020 07:25:22 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E00FA2083B for ; Fri, 30 Oct 2020 07:25:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="iVZUjSXj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E00FA2083B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=wfdWw6CXTlzDGuTbQAz4Coi9nksUly/Num7RDBQjAdA=; b=iVZUjSXj2csKuEKkV1iXwWG5K LiR3rXqJeB08sdH2ulN8WtKzEfCYEvC5zSEG9Y4WAA2+RAHsWumFf09tAiLkaYHiJEaztLu7mxk7V OWeUllwVTU9BAs2jKAdQ1zeeJDCdPONCLdP4KBWymTVJ1P1ijJ5xELemOtZZ/jR82oOBSTTOAoWW1 nMYI0xqozIT2+gy6/n9kVZx8/FSrOHSih5vUcGDqqOXhd3fXgQG2SJY3E8vWumfI7iKi29IArfmZv GosjGLfYKVH0CbdSMLWmhg25dLTUOZBSJ5f7AEEst2zOP5fkDwGxckyu1H5lBQVuPTl5QpC0vMbzJ I41IBZ+4g==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYOmm-00049z-WE; Fri, 30 Oct 2020 07:25:21 +0000 Received: from verein.lst.de ([213.95.11.211]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYOmh-00047J-Kl; Fri, 30 Oct 2020 07:25:16 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 1A01067373; Fri, 30 Oct 2020 08:25:08 +0100 (CET) Date: Fri, 30 Oct 2020 08:25:08 +0100 From: Christoph Hellwig To: Thomas Gleixner Subject: Re: [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends Message-ID: <20201030072508.GA18471@lst.de> References: <20201029221806.189523375@linutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201029221806.189523375@linutronix.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201030_032515_821097_18B74F7B X-CRM114-Status: GOOD ( 14.75 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juri Lelli , linux-xtensa@linux-xtensa.org, Peter Zijlstra , Benjamin Herrenschmidt , Sebastian Andrzej Siewior , linux-mips@vger.kernel.org, Ben Segall , linux-mm@kvack.org, Guo Ren , sparclinux@vger.kernel.org, Vincent Chen , Ingo Molnar , linux-arch@vger.kernel.org, Vincent Guittot , Herbert Xu , Michael Ellerman , x86@kernel.org, Russell King , linux-csky@vger.kernel.org, Christoph Hellwig , David Airlie , Mel Gorman , linux-snps-arc@lists.infradead.org, Ard Biesheuvel , Paul McKenney , linuxppc-dev@lists.ozlabs.org, Steven Rostedt , Linus Torvalds , Greentime Hu , Dietmar Eggemann , linux-arm-kernel@lists.infradead.org, Chris Zankel , Michal Simek , Thomas Bogendoerfer , Nick Hu , Max Filippov , Vineet Gupta , LKML , Arnd Bergmann , Daniel Vetter , Paul Mackerras , Andrew Morton , Daniel Bristot de Oliveira , "David S. Miller" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Thu, Oct 29, 2020 at 11:18:06PM +0100, Thomas Gleixner wrote: > This is achieved by: ... > > - Consolidating all kmap atomic implementations in generic code ... > Though I wanted to share the current state of affairs before investigating > that further. If there is consensus in going forward with this, I'll have a > deeper look into this issue. I think the consolidation is a winner no matter where we go next. Maybe split it out in a prep series so we can get it in ASAP? _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C2B8C56201 for ; Fri, 30 Oct 2020 07:26:57 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 631B42083B for ; Fri, 30 Oct 2020 07:26:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 631B42083B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4CMv595vWMzDqvj for ; Fri, 30 Oct 2020 18:26:53 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lst.de (client-ip=213.95.11.211; helo=verein.lst.de; envelope-from=hch@lst.de; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=lst.de Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4CMv3K1r37zDqfb for ; Fri, 30 Oct 2020 18:25:15 +1100 (AEDT) Received: by verein.lst.de (Postfix, from userid 2407) id 1A01067373; Fri, 30 Oct 2020 08:25:08 +0100 (CET) Date: Fri, 30 Oct 2020 08:25:08 +0100 From: Christoph Hellwig To: Thomas Gleixner Subject: Re: [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends Message-ID: <20201030072508.GA18471@lst.de> References: <20201029221806.189523375@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201029221806.189523375@linutronix.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juri Lelli , linux-xtensa@linux-xtensa.org, Peter Zijlstra , Sebastian Andrzej Siewior , linux-mips@vger.kernel.org, Ben Segall , linux-mm@kvack.org, Guo Ren , sparclinux@vger.kernel.org, Vincent Chen , Ingo Molnar , linux-arch@vger.kernel.org, Vincent Guittot , Herbert Xu , x86@kernel.org, Russell King , linux-csky@vger.kernel.org, Christoph Hellwig , David Airlie , Mel Gorman , linux-snps-arc@lists.infradead.org, Ard Biesheuvel , Paul McKenney , linuxppc-dev@lists.ozlabs.org, Steven Rostedt , Linus Torvalds , Greentime Hu , Dietmar Eggemann , linux-arm-kernel@lists.infradead.org, Chris Zankel , Michal Simek , Thomas Bogendoerfer , Nick Hu , Max Filippov , Vineet Gupta , LKML , Arnd Bergmann , Daniel Vetter , Paul Mackerras , Andrew Morton , Daniel Bristot de Oliveira , "David S. Miller" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, Oct 29, 2020 at 11:18:06PM +0100, Thomas Gleixner wrote: > This is achieved by: ... > > - Consolidating all kmap atomic implementations in generic code ... > Though I wanted to share the current state of affairs before investigating > that further. If there is consensus in going forward with this, I'll have a > deeper look into this issue. I think the consolidation is a winner no matter where we go next. Maybe split it out in a prep series so we can get it in ASAP? From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Fri, 30 Oct 2020 07:25:08 +0000 Subject: Re: [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends Message-Id: <20201030072508.GA18471@lst.de> List-Id: References: <20201029221806.189523375@linutronix.de> In-Reply-To: <20201029221806.189523375@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Thomas Gleixner Cc: LKML , linux-arch@vger.kernel.org, Linus Torvalds , Peter Zijlstra , Paul McKenney , David Airlie , Daniel Vetter , Ard Biesheuvel , Herbert Xu , Christoph Hellwig , Sebastian Andrzej Siewior , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Andrew Morton , linux-mm@kvack.org, x86@kernel.org, Vineet Gupta , linux-snps-arc@lists.infradead.org, Russell King , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, Guo Ren , linux-csky@vger.kernel.org, Michal Simek , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Nick Hu , Greentime Hu , Vincent Chen , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , sparclinux@vger.kernel.org, Chris Zankel , Max Filippov , linux-xtensa@linux-xtensa.org On Thu, Oct 29, 2020 at 11:18:06PM +0100, Thomas Gleixner wrote: > This is achieved by: ... > > - Consolidating all kmap atomic implementations in generic code ... > Though I wanted to share the current state of affairs before investigating > that further. If there is consensus in going forward with this, I'll have a > deeper look into this issue. I think the consolidation is a winner no matter where we go next. Maybe split it out in a prep series so we can get it in ASAP? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3650FC4742C for ; Fri, 30 Oct 2020 07:26:36 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7F6072083B for ; Fri, 30 Oct 2020 07:26:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="JV8HQ7jq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7F6072083B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Vh5BbtCK89zo4kqhDqAJlYzra1xiqXD6bdnOeRhGgls=; b=JV8HQ7jqvAwm6CI3h4UuVaEx+ /787T5jyCSSizJOd9LBN/4T0aRTBo/mCftCdNaHYq6I2JVPRdIsTWunr8TQsbT2xAbXyJQ9WrVweX 84eknDH+BkLMWu0/4kBY4OFvOyngGYejhbANwQh9PdY8+gFdkujyHekG0hH8m1gDvA4JU7HmMwYZ+ Cd93pvK6pVM8O9KT5Fnp1z5ewp+Qq3INK00sbKc654j/wx29T2zCCSOWB9R+jXuqvKJtQBhBydlD4 4nNBYlUQ0nNWYQIJ7GZJOPozy72WDZHap/HnXTxLTkaSeM/jXcJVdU+Sz3eCXcAp1xpvNLl0xSf/I g3QYFSv+A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYOmk-000496-MY; Fri, 30 Oct 2020 07:25:18 +0000 Received: from verein.lst.de ([213.95.11.211]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYOmh-00047J-Kl; Fri, 30 Oct 2020 07:25:16 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 1A01067373; Fri, 30 Oct 2020 08:25:08 +0100 (CET) Date: Fri, 30 Oct 2020 08:25:08 +0100 From: Christoph Hellwig To: Thomas Gleixner Subject: Re: [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends Message-ID: <20201030072508.GA18471@lst.de> References: <20201029221806.189523375@linutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201029221806.189523375@linutronix.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201030_032515_821097_18B74F7B X-CRM114-Status: GOOD ( 14.75 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juri Lelli , linux-xtensa@linux-xtensa.org, Peter Zijlstra , Benjamin Herrenschmidt , Sebastian Andrzej Siewior , linux-mips@vger.kernel.org, Ben Segall , linux-mm@kvack.org, Guo Ren , sparclinux@vger.kernel.org, Vincent Chen , Ingo Molnar , linux-arch@vger.kernel.org, Vincent Guittot , Herbert Xu , Michael Ellerman , x86@kernel.org, Russell King , linux-csky@vger.kernel.org, Christoph Hellwig , David Airlie , Mel Gorman , linux-snps-arc@lists.infradead.org, Ard Biesheuvel , Paul McKenney , linuxppc-dev@lists.ozlabs.org, Steven Rostedt , Linus Torvalds , Greentime Hu , Dietmar Eggemann , linux-arm-kernel@lists.infradead.org, Chris Zankel , Michal Simek , Thomas Bogendoerfer , Nick Hu , Max Filippov , Vineet Gupta , LKML , Arnd Bergmann , Daniel Vetter , Paul Mackerras , Andrew Morton , Daniel Bristot de Oliveira , "David S. Miller" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Oct 29, 2020 at 11:18:06PM +0100, Thomas Gleixner wrote: > This is achieved by: ... > > - Consolidating all kmap atomic implementations in generic code ... > Though I wanted to share the current state of affairs before investigating > that further. If there is consensus in going forward with this, I'll have a > deeper look into this issue. I think the consolidation is a winner no matter where we go next. Maybe split it out in a prep series so we can get it in ASAP? _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel