Message ID | 20210420150049.14031-1-rppt@kernel.org (mailing list archive) |
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Headers | show
Return-Path: <SRS0=ZI7U=JR=kvack.org=owner-linux-mm@kernel.org> 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=-11.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 08C99C43470 for <linux-mm@archiver.kernel.org>; Tue, 20 Apr 2021 15:01:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7C301613D7 for <linux-mm@archiver.kernel.org>; Tue, 20 Apr 2021 15:01:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7C301613D7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B56126B006C; Tue, 20 Apr 2021 11:01:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B054C6B006E; Tue, 20 Apr 2021 11:01:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9A6116B0070; Tue, 20 Apr 2021 11:01:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0159.hostedemail.com [216.40.44.159]) by kanga.kvack.org (Postfix) with ESMTP id 7D7776B006C for <linux-mm@kvack.org>; Tue, 20 Apr 2021 11:01:08 -0400 (EDT) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 3928E824999B for <linux-mm@kvack.org>; Tue, 20 Apr 2021 15:01:08 +0000 (UTC) X-FDA: 78053058216.15.8FABA0F Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf10.hostedemail.com (Postfix) with ESMTP id 6A1FB41AD7B9 for <linux-mm@kvack.org>; Tue, 20 Apr 2021 15:01:00 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id EE7CC613CD; Tue, 20 Apr 2021 15:00:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618930864; bh=8H5HU47vEWQjvvF+2Pz4ChL06bcJ0cPitsV98kgBsxg=; h=From:To:Cc:Subject:Date:From; b=n4Nm3HlpfChYGkCY62zrscIigP2PS/KwtQe3rk8cf0a4kmFXBffFMI/JZOZf3lqXG I2DY9NMidPqLhsTgvFwkE+J6Fy9TPmwoPeQuiLO1iU5ibpkWYcCNMkqL8WamECYDx/ cFnHJ2L51bPl3ihavFrLiRAdeJI2Bij5m4ZGUDbwVRUbPbbbOGIQTyE7lxfqgkGVlh +EYbmgdDfDCeyFVzW71FzXt7d+plT2fK+Ik0mpJZ2ndkuq0eiTmXZAZ7zGob/famDE EyW64QzflOhPuGIz3FV6JVuCs/V9Kd04MBng8Mkhuo5rTiWoHO+xJJif/5vq6yiKU1 X3aq4Yn+wxUkw== From: Mike Rapoport <rppt@kernel.org> To: Andrew Morton <akpm@linux-foundation.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk>, Andy Lutomirski <luto@kernel.org>, Arnd Bergmann <arnd@arndb.de>, Borislav Petkov <bp@alien8.de>, Catalin Marinas <catalin.marinas@arm.com>, Christopher Lameter <cl@linux.com>, Dan Williams <dan.j.williams@intel.com>, Dave Hansen <dave.hansen@linux.intel.com>, David Hildenbrand <david@redhat.com>, Elena Reshetova <elena.reshetova@intel.com>, "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>, James Bottomley <jejb@linux.ibm.com>, "Kirill A. Shutemov" <kirill@shutemov.name>, Matthew Wilcox <willy@infradead.org>, Matthew Garrett <mjg59@srcf.ucam.org>, Mark Rutland <mark.rutland@arm.com>, Michal Hocko <mhocko@suse.com>, Mike Rapoport <rppt@linux.ibm.com>, Mike Rapoport <rppt@kernel.org>, Michael Kerrisk <mtk.manpages@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, Paul Walmsley <paul.walmsley@sifive.com>, Peter Zijlstra <peterz@infradead.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Rick Edgecombe <rick.p.edgecombe@intel.com>, Roman Gushchin <guro@fb.com>, Shakeel Butt <shakeelb@google.com>, Shuah Khan <shuah@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Tycho Andersen <tycho@tycho.ws>, Will Deacon <will@kernel.org>, Yury Norov <yury.norov@gmail.com>, linux-api@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org, linux-riscv@lists.infradead.org, x86@kernel.org Subject: [PATCH v3 0/2] secretmem: optimize page_is_secretmem() Date: Tue, 20 Apr 2021 18:00:47 +0300 Message-Id: <20210420150049.14031-1-rppt@kernel.org> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 6A1FB41AD7B9 X-Stat-Signature: a6g965q8bwt5qyjfruhtnzwysh46oesc Received-SPF: none (kernel.org>: No applicable sender policy available) receiver=imf10; identity=mailfrom; envelope-from="<rppt@kernel.org>"; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1618930860-770489 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: <linux-mm.kvack.org> |
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secretmem: optimize page_is_secretmem()
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From: Mike Rapoport <rppt@linux.ibm.com> Hi, This is an updated version of page_is_secretmem() changes. This is based on v5.12-rc7-mmots-2021-04-15-16-28. @Andrew, please let me know if you'd like me to rebase it differently or resend the entire set. v3: * add missing put_compound_head() if we are to return NULL from gup_page_range(), thanks David. * add unlikely() to test for page_is_secretmem. v2: * move the check for secretmem page in gup_pte_range after we get a reference to the page, per Matthew. Mike Rapoport (2): secretmem/gup: don't check if page is secretmem without reference secretmem: optimize page_is_secretmem() include/linux/secretmem.h | 26 +++++++++++++++++++++++++- mm/gup.c | 6 +++--- mm/secretmem.c | 12 +----------- 3 files changed, 29 insertions(+), 15 deletions(-)