From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King - ARM Linux admin Subject: Re: [PATCH v2 00/13] mm: remove __ARCH_HAS_5LEVEL_HACK Date: Sun, 16 Feb 2020 08:22:30 +0000 Message-ID: <20200216082230.GV25745@shell.armlinux.org.uk> References: <20200216081843.28670-1-rppt@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20200216081843.28670-1-rppt@kernel.org> Sender: linux-hexagon-owner@vger.kernel.org To: Mike Rapoport Cc: linux-kernel@vger.kernel.org, Andrew Morton , Arnd Bergmann , Benjamin Herrenschmidt , Brian Cain , Catalin Marinas , Christophe Leroy , Fenghua Yu , Geert Uytterhoeven , Guan Xuetao , James Morse , Jonas Bonn , Julien Thierry , Ley Foon Tan , Marc Zyngier , Michael Ellerman , Paul Mackerras , Rich Felker , Stafford Horne , Stefan Kristiansson List-Id: linux-arch.vger.kernel.org On Sun, Feb 16, 2020 at 10:18:30AM +0200, Mike Rapoport wrote: > From: Mike Rapoport > > Hi, > > These patches convert several architectures to use page table folding and > remove __ARCH_HAS_5LEVEL_HACK along with include/asm-generic/5level-fixup.h. > > The changes are mostly about mechanical replacement of pgd accessors with p4d > ones and the addition of higher levels to page table traversals. > > All the patches were sent separately to the respective arch lists and > maintainers hence the "v2" prefix. You fail to explain why this change which adds 488 additional lines of code is desirable. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Sun, 16 Feb 2020 08:22:30 +0000 From: Russell King - ARM Linux admin Subject: Re: [PATCH v2 00/13] mm: remove __ARCH_HAS_5LEVEL_HACK Message-ID: <20200216082230.GV25745@shell.armlinux.org.uk> References: <20200216081843.28670-1-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200216081843.28670-1-rppt@kernel.org> Sender: Russell King - ARM Linux admin To: Mike Rapoport Cc: linux-kernel@vger.kernel.org, Andrew Morton , Arnd Bergmann , Benjamin Herrenschmidt , Brian Cain , Catalin Marinas , Christophe Leroy , Fenghua Yu , Geert Uytterhoeven , Guan Xuetao , James Morse , Jonas Bonn , Julien Thierry , Ley Foon Tan , Marc Zyngier , Michael Ellerman , Paul Mackerras , Rich Felker , Stafford Horne , Stefan Kristiansson , Suzuki K Poulose , Tony Luck , Will Deacon , Yoshinori Sato , kvmarm@lists.cs.columbia.edu, kvm-ppc@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, nios2-dev@lists.rocketboards.org, openrisc@lists.librecores.org, uclinux-h8-devel@lists.sourceforge.jp, Mike Rapoport List-ID: Message-ID: <20200216082230.pGze5_Eg_TA9Fv0V3HY4mKO1m4HEM4YDu2Ow8Msjw6s@z> On Sun, Feb 16, 2020 at 10:18:30AM +0200, Mike Rapoport wrote: > From: Mike Rapoport > > Hi, > > These patches convert several architectures to use page table folding and > remove __ARCH_HAS_5LEVEL_HACK along with include/asm-generic/5level-fixup.h. > > The changes are mostly about mechanical replacement of pgd accessors with p4d > ones and the addition of higher levels to page table traversals. > > All the patches were sent separately to the respective arch lists and > maintainers hence the "v2" prefix. You fail to explain why this change which adds 488 additional lines of code is desirable. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up