From patchwork Tue Apr 20 15:00:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 12214483 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=-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 ; 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 ; 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 ; 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 ; 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 ; 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 To: Andrew Morton Cc: Alexander Viro , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Christopher Lameter , Dan Williams , Dave Hansen , David Hildenbrand , Elena Reshetova , "H. Peter Anvin" , Ingo Molnar , James Bottomley , "Kirill A. Shutemov" , Matthew Wilcox , Matthew Garrett , Mark Rutland , Michal Hocko , Mike Rapoport , Mike Rapoport , Michael Kerrisk , Palmer Dabbelt , Paul Walmsley , Peter Zijlstra , "Rafael J. Wysocki" , Rick Edgecombe , Roman Gushchin , Shakeel Butt , Shuah Khan , Thomas Gleixner , Tycho Andersen , Will Deacon , Yury Norov , 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 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=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1618930860-770489 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: From: Mike Rapoport 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(-)