From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Joel Fernandes (Google)" Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) Date: Fri, 12 Oct 2018 18:31:59 -0700 Message-ID: <20181013013200.206928-4-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: linux-mips@linux-mips.org, Rich Felker , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , Catalin Marinas , Dave Hansen , Will Deacon , mhocko@kernel.org, linux-mm@kvack.org, lokeshgidra@google.com, "Joel Fernandes \(Google\)" , linux-riscv@lists.infradead.org, elfring@users.sourceforge.net, Jonas Bonn , kvmarm@lists.cs.columbia.edu, dancol@google.com, Yoshinori Sato , sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-hexagon@vger.kernel.org, Helge Deller , "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" , hughd@google.com, "James E.J. Bottomley" , kasan-dev@googlegroups.com, anton.ivanov@kot-begem To: linux-kernel@vger.kernel.org Return-path: In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-snps-arc-bounces+gla-linux-snps-arc=m.gmane.org@lists.infradead.org Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Sat, 13 Oct 2018 03:33:01 +0200 (CEST) Received: from mail-pf1-x444.google.com ([IPv6:2607:f8b0:4864:20::444]:38168 "EHLO mail-pf1-x444.google.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23994599AbeJMBccM0t-y (ORCPT ); Sat, 13 Oct 2018 03:32:32 +0200 Received: by mail-pf1-x444.google.com with SMTP id f29-v6so7016228pff.5 for ; Fri, 12 Oct 2018 18:32:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelfernandes.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=bjYTsH4Iq69Ub7N2c7p2HOCfpyLGuHcm9WhDWE1Dnwg=; b=pvEfVikziMJRWxtTRTm3WwDM1z7pcXybcAtnjCIyQdfWN8O5jRGdCgjUlGTjsMAT/F saWeGlI2HK0vC3ro6vBYXn3xIZY1BMwuP8djzpt6M+eKMtkHqPqZ+mldfVclfk22srUA b5EsPUgxygKFL8hgKZ6UMDusfAYxbbW7exB4M= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=bjYTsH4Iq69Ub7N2c7p2HOCfpyLGuHcm9WhDWE1Dnwg=; b=HL0noLwzdVnraEWP3iInZdUdBvGdEREy/CkEH+Ktp88PlXvMNTWYCoXxGMibbh8/Xr lcKDKD9q960339NGA1Hg8wvaRFF1ZmxD9bwVsP3rFBkvvLQqX2ZgLX8GG5oHsegvmf0H F1Kk4+vM+F1hMHcs0PgWgohf/Lv9Un5welUB23xXxpv59fWC7mwAI2WIs6AybM7DgNWm d+7bI6jayKJ3MJrsQ95UvWshprOCF+7NMbEjWXR6KouqVyyg4SYX8wDxIBdteqFIF22T 0mMFDG16mwCC9neglRNbaPqDRL4JvDzkTvt7K2AZLjamGD382Lx3hv4ilofIcIuNfLDR KDdQ== X-Gm-Message-State: ABuFfogllR37MlbgfWL+AoCeijwsAUNTWHywGja33xJmaWJuL8PS07aA aqKVzf4jra+ss8EbvlbXZYgD1A== X-Google-Smtp-Source: ACcGV60ecPJwErRYv7rdeDNNhheUXmreqwFNvyYIFQM0w7YuygsKhKKgtC5tCiolpW/Ws3yIGetyhA== X-Received: by 2002:a63:2a11:: with SMTP id q17-v6mr7630469pgq.374.1539394345842; Fri, 12 Oct 2018 18:32:25 -0700 (PDT) Received: from joelaf.mtv.corp.google.com ([2620:0:1000:1601:3aef:314f:b9ea:889f]) by smtp.gmail.com with ESMTPSA id q7-v6sm6507828pfd.164.2018.10.12.18.32.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 12 Oct 2018 18:32:24 -0700 (PDT) From: "Joel Fernandes (Google)" To: linux-kernel@vger.kernel.org Cc: kernel-team@android.com, "Joel Fernandes (Google)" , akpm@linux-foundation.org, Andrey Ryabinin , Andy Lutomirski , anton.ivanov@kot-begemot.co.uk, Borislav Petkov , Catalin Marinas , Chris Zankel , dancol@google.com, Dave Hansen , "David S. Miller" , elfring@users.sourceforge.net, Fenghua Yu , Geert Uytterhoeven , Guan Xuetao , Helge Deller , hughd@google.com, Ingo Molnar , "James E.J. Bottomley" , Jeff Dike , Jonas Bonn , Julia Lawall , kasan-dev@googlegroups.com, "Kirill A. Shutemov" , kvmarm@lists.cs.columbia.edu, Ley Foon Tan , linux-alpha@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@linux-mips.org, linux-mm@kvack.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, lokeshgidra@google.com, Max Filippov , mhocko@kernel.org, minchan@kernel.org, nios2-dev@lists.rocketboards.org, pantin@google.com, Peter Zijlstra , Richard Weinberger , Rich Felker , Sam Creasey , sparclinux@vger.kernel.org, Stafford Horne , Stefan Kristiansson , Thomas Gleixner , Tony Luck , Will Deacon , x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), Yoshinori Sato Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) Date: Fri, 12 Oct 2018 18:31:59 -0700 Message-Id: <20181013013200.206928-4-joel@joelfernandes.org> X-Mailer: git-send-email 2.19.0.605.g01d371f741-goog In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: 66806 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: joel@joelfernandes.org 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 Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-x444.google.com ([IPv6:2607:f8b0:4864:20::444]:38168 "EHLO mail-pf1-x444.google.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23994599AbeJMBccM0t-y (ORCPT ); Sat, 13 Oct 2018 03:32:32 +0200 Received: by mail-pf1-x444.google.com with SMTP id f29-v6so7016228pff.5 for ; Fri, 12 Oct 2018 18:32:32 -0700 (PDT) From: "Joel Fernandes (Google)" Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) Date: Fri, 12 Oct 2018 18:31:59 -0700 Message-ID: <20181013013200.206928-4-joel@joelfernandes.org> In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: linux-kernel@vger.kernel.org Cc: kernel-team@android.com, "Joel Fernandes (Google)" , akpm@linux-foundation.org, Andrey Ryabinin , Andy Lutomirski , anton.ivanov@kot-begemot.co.uk, Borislav Petkov , Catalin Marinas , Chris Zankel , dancol@google.com, Dave Hansen , "David S. Miller" , elfring@users.sourceforge.net, Fenghua Yu , Geert Uytterhoeven , Guan Xuetao , Helge Deller , hughd@google.com, Ingo Molnar , "James E.J. Bottomley" , Jeff Dike , Jonas Bonn , Julia Lawall , kasan-dev@googlegroups.com, "Kirill A. Shutemov" , kvmarm@lists.cs.columbia.edu, Ley Foon Tan , linux-alpha@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@linux-mips.org, linux-mm@kvack.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, lokeshgidra@google.com, Max Filippov , mhocko@kernel.org, minchan@kernel.org, nios2-dev@lists.rocketboards.org, pantin@google.com, Peter Zijlstra , Richard Weinberger , Rich Felker , Sam Creasey , sparclinux@vger.kernel.org, Stafford Horne , Stefan Kristiansson , Thomas Gleixner , Tony Luck , Will Deacon , "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" , Yoshinori Sato Message-ID: <20181013013159.7o6z0js1OzMZ4AD4iH5JCyYPqg5RnJg0y5a5BDUtEGc@z> Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog From mboxrd@z Thu Jan 1 00:00:00 1970 From: joel@joelfernandes.org (Joel Fernandes (Google)) Date: Fri, 12 Oct 2018 18:31:59 -0700 Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> Message-ID: <20181013013200.206928-4-joel@joelfernandes.org> To: linux-riscv@lists.infradead.org List-Id: linux-riscv.lists.infradead.org Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog 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=-10.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 C7276C71122 for ; 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Fri, 12 Oct 2018 18:32:25 -0700 (PDT) Received: from joelaf.mtv.corp.google.com ([2620:0:1000:1601:3aef:314f:b9ea:889f]) by smtp.gmail.com with ESMTPSA id q7-v6sm6507828pfd.164.2018.10.12.18.32.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 12 Oct 2018 18:32:24 -0700 (PDT) From: "Joel Fernandes (Google)" To: linux-kernel@vger.kernel.org Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) Date: Fri, 12 Oct 2018 18:31:59 -0700 Message-Id: <20181013013200.206928-4-joel@joelfernandes.org> X-Mailer: git-send-email 2.19.0.605.g01d371f741-goog In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181012_183236_972890_525F2791 X-CRM114-Status: GOOD ( 10.33 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mips@linux-mips.org, Rich Felker , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , Catalin Marinas , Dave Hansen , Will Deacon , mhocko@kernel.org, linux-mm@kvack.org, lokeshgidra@google.com, "Joel Fernandes \(Google\)" , linux-riscv@lists.infradead.org, elfring@users.sourceforge.net, Jonas Bonn , kvmarm@lists.cs.columbia.edu, dancol@google.com, Yoshinori Sato , sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-hexagon@vger.kernel.org, Helge Deller , "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" , hughd@google.com, "James E.J. Bottomley" , kasan-dev@googlegroups.com, anton.ivanov@kot-begemot.co.uk, Ingo Molnar , Geert Uytterhoeven , Andrey Ryabinin , linux-snps-arc@lists.infradead.org, kernel-team@android.com, Sam Creasey , Fenghua Yu , linux-s390@vger.kernel.org, Jeff Dike , linux-um@lists.infradead.org, Stefan Kristiansson , Julia Lawall , linux-m68k@lists.linux-m68k.org, Borislav Petkov , Andy Lutomirski , nios2-dev@lists.rocketboards.org, "Kirill A. Shutemov" , Stafford Horne , Guan Xuetao , Chris Zankel , Tony Luck , Richard Weinberger , linux-parisc@vger.kernel.org, Max Filippov , pantin@google.com, minchan@kernel.org, Thomas Gleixner , linux-alpha@vger.kernel.org, Ley Foon Tan , akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org, "David S. Miller" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org Message-ID: <20181013013159.BZzEkIwjnjgYanV77WC-rUWqf3IJP3KOyys0LhU5gVE@z> Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv 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=-8.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 7454DC6787C for ; 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Fri, 12 Oct 2018 18:32:25 -0700 (PDT) Received: from joelaf.mtv.corp.google.com ([2620:0:1000:1601:3aef:314f:b9ea:889f]) by smtp.gmail.com with ESMTPSA id q7-v6sm6507828pfd.164.2018.10.12.18.32.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 12 Oct 2018 18:32:24 -0700 (PDT) From: "Joel Fernandes (Google)" To: linux-kernel@vger.kernel.org Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) Date: Fri, 12 Oct 2018 18:31:59 -0700 Message-Id: <20181013013200.206928-4-joel@joelfernandes.org> X-Mailer: git-send-email 2.19.0.605.g01d371f741-goog In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Sat, 13 Oct 2018 13:44:51 +1100 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: linux-mips@linux-mips.org, Rich Felker , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , Catalin Marinas , Dave Hansen , Will Deacon , mhocko@kernel.org, linux-mm@kvack.org, lokeshgidra@google.com, "Joel Fernandes \(Google\)" , linux-riscv@lists.infradead.org, elfring@users.sourceforge.net, Jonas Bonn , kvmarm@lists.cs.columbia.edu, dancol@google.com, Yoshinori Sato , sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-hexagon@vger.kernel.org, Helge Deller , "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" , hughd@google.com, "James E.J. Bottomley" , kasan-dev@googlegroups.com, anton.ivanov@kot-begemot.co.uk, Ingo Molnar , Geert Uytterhoeven , Andrey Ryabinin , linux-snps-arc@lists.infradead.org, kernel-team@android.com, Sam Creasey , Fenghua Yu , linux-s390@vger.kernel.org, Jeff Dike , linux-um@lists.infradead.org, Stefan Kristiansson , Julia Lawall , linux-m68k@lists.linux-m68k.org, Borislav Petkov , Andy Lutomirski , nios2-dev@lists.rocketboards.org, "Kirill A. Shutemov" , Stafford Horne , Guan Xuetao , Chris Zankel , Tony Luck , Richard Weinberger , linux-parisc@vger.kernel.org, Max Filippov , pantin@google.com, minchan@kernel.org, Thomas Gleixner , linux-alpha@vger.kernel.org, Ley Foon Tan , akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org, "David S. Miller" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog From mboxrd@z Thu Jan 1 00:00:00 1970 From: joel@joelfernandes.org (Joel Fernandes (Google)) Date: Fri, 12 Oct 2018 18:31:59 -0700 Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> List-ID: Message-ID: <20181013013200.206928-4-joel@joelfernandes.org> To: linux-snps-arc@lists.infradead.org Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Joel Fernandes (Google)" Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1) Date: Fri, 12 Oct 2018 18:31:59 -0700 Message-ID: <20181013013200.206928-4-joel@joelfernandes.org> References: <20181013013200.206928-1-joel@joelfernandes.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=7nbaYAZCArkwulWcph7mnWBdigkVmF+XmR+PMMvt/cc=; b=i5fuiKu2eQo613 Ab6hpclGDFS1Vo5SYmtyLQ1/6ezXH8OO+KZVcKLDRrSDN5cni9jAOe3wwVjYJM0D0cIsB+OXdvHQk JRtfmmA80qVkOX3nEc9uxnQuQhFxbKv0txubdmBU5efVY2eDJXn3AYdPyecCjYD4+SS4KWW7u2c5o yb3mIkSOD84BMydBXRFBVWtt+yAnO/LW4qt6b+hqqAhylr9nfCkt3LF4yGlT8WvENEyeImLSpv1bi nhox6wWhgvOkOrO8KWt3BLZAcFtdNAzBkrHAPlcnJhU6I8pYpYiIaEkfuUKhbo9lzSC+lYeNVmPSm kNEfpU+abMnK4IlhnXpg==; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelfernandes.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=bjYTsH4Iq69Ub7N2c7p2HOCfpyLGuHcm9WhDWE1Dnwg=; b=pvEfVikziMJRWxtTRTm3WwDM1z7pcXybcAtnjCIyQdfWN8O5jRGdCgjUlGTjsMAT/F saWeGlI2HK0vC3ro6vBYXn3xIZY1BMwuP8djzpt6M+eKMtkHqPqZ+mldfVclfk22srUA b5EsPUgxygKFL8hgKZ6UMDusfAYxbbW7exB4M= In-Reply-To: <20181013013200.206928-1-joel@joelfernandes.org> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+gla-linux-snps-arc=m.gmane.org@lists.infradead.org To: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org, Rich Felker , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , Catalin Marinas , Dave Hansen , Will Deacon , mhocko@kernel.org, linux-mm@kvack.org, lokeshgidra@google.com, "Joel Fernandes (Google)" , linux-riscv@lists.infradead.org, elfring@users.sourceforge.net, Jonas Bonn , kvmarm@lists.cs.columbia.edu, dancol@google.com, Yoshinori Sato , sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-hexagon@vger.kernel.org, Helge Deller , "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" , hughd@google.com, "James E.J. Bottomley" , kasan-dev@googlegroups.com, anton.ivanov@kot-begem Moving page-tables at the PMD-level on arm64 is known to be safe. Enable this option so that we can do fast mremap when possible. Signed-off-by: Joel Fernandes (Google) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..5d7c35c6f90c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,6 +135,7 @@ config ARM64 select HAVE_IRQ_TIME_ACCOUNTING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP if NUMA + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS -- 2.19.0.605.g01d371f741-goog