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=-3.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 00707C43387 for ; Fri, 14 Dec 2018 18:07:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2B418206E0 for ; Fri, 14 Dec 2018 18:07:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="hteUcZu1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730506AbeLNSHs (ORCPT ); Fri, 14 Dec 2018 13:07:48 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:35343 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729619AbeLNSHs (ORCPT ); Fri, 14 Dec 2018 13:07:48 -0500 Received: by mail-pl1-f195.google.com with SMTP id p8so3085472plo.2 for ; Fri, 14 Dec 2018 10:07:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=4Ip/0LYnlHlDLXrjJ5WMEPjQEt2PfRgjDNF+8RQ/S5E=; b=hteUcZu11WDSxGU22hv9xrRZ43cU5rq/w4ppUOAeo3HOonRX7h5zodYK+kiSvjdWAO ZHzGbOL+h/UVNMT2769B1/9Q0fErY7xlPRVQend8O+RvoZwMblSlKJmogPZnckYwTf+y YRSI81x2kT9kfF7NSqM47qkmag7azPP7YpE1Fn5mYsLIosGqpL3bpT20wHvOkuh+z+gW C26iQWta1h4v/PiGfhPOp57q1ZdX3H14c6F5rRT8BoRLzRvOkXJwPigHt8ylBlosKe5U NlUj4doUJwd1ksSgkmrSPNZDniOk2cE12mBFjByL2SVl2V8Ib60TH9TNBLW9cUdY26HJ HLIw== 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:mime-version :content-transfer-encoding; bh=4Ip/0LYnlHlDLXrjJ5WMEPjQEt2PfRgjDNF+8RQ/S5E=; b=rQiggw6YXevNfoYJG+NO4/1SsJlbB8opXPruenXtKKpzD5bmdKNSpvtn21mZOHTW1h BxMHSqBziJrtiI3uj6oRUalrVwkBoTMH3FhoenA+YLerv11dJchE/4cCveb3YKDllQV4 ZWWj+60RYnSYqsOdF/NNCzkz1TAr7QT76WdrgOtk7qF7j2D3iTyA9G5sfIziK4kIzt8l 1EpCHnFJzjGFysYF3vFceStlKduZVakikBJeSKvvhsvEjVk1Np4NXiaW3tET7+1BowGH mVk7FIJ0JmHXcb20rc0TSBiz+0ly0SzHgrBIErFPmixgH3buHwcKxTOcTfTm2cJbBHGP xU/A== X-Gm-Message-State: AA+aEWaodtnSL6bkcBRgFutrmOq+UAzyIEj0HfMXBDo9DDHLB1GFyJki kOjK2yNzf5vQ7gfNWU44XAk= X-Google-Smtp-Source: AFSGD/XOYLSpsZOMc/lgird/uoAM4mCH7iTi1fKcRHmcgg6iawo7SSaNjvxdcj1aGhg4IvATT7zdFw== X-Received: by 2002:a17:902:2bc5:: with SMTP id l63mr3843864plb.107.1544810867619; Fri, 14 Dec 2018 10:07:47 -0800 (PST) Received: from tower.thefacebook.com ([2620:10d:c090:200::5:3d97]) by smtp.gmail.com with ESMTPSA id r2sm7180856pgo.18.2018.12.14.10.07.46 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 14 Dec 2018 10:07:47 -0800 (PST) From: Roman Gushchin X-Google-Original-From: Roman Gushchin To: linux-mm@kvack.org Cc: Alexey Dobriyan , Johannes Weiner , Michal Hocko , Vlastimil Babka , linux-kernel@vger.kernel.org, kernel-team@fb.com, Roman Gushchin Subject: [RFC 0/4] vmalloc enhancements Date: Fri, 14 Dec 2018 10:07:16 -0800 Message-Id: <20181214180720.32040-1-guro@fb.com> X-Mailer: git-send-email 2.19.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patchset contains few changes to the vmalloc code, which are leading to some performance gains and code simplification. Also, it exports a number of pages, used by vmalloc(), in /proc/meminfo. Patch (1) removes some redundancy on __vunmap(). Patch (2) is a preparation for patch (3). Patch (3) merges independent 3 metadata allocations into one. Patch (4) adds vmalloc counter to /proc/meminfo. Roman Gushchin (4): mm: refactor __vunmap() to avoid duplicated call to find_vm_area() mm: separate memory allocation and actual work in alloc_vmap_area() mm: allocate vmalloc metadata in one allocation mm: show number of vmalloc pages in /proc/meminfo arch/mips/mm/ioremap.c | 7 +- arch/nios2/mm/ioremap.c | 4 +- arch/sh/kernel/cpu/sh4/sq.c | 5 +- arch/sh/mm/ioremap.c | 8 +- arch/x86/mm/ioremap.c | 4 +- fs/proc/meminfo.c | 2 +- include/linux/vmalloc.h | 6 +- mm/vmalloc.c | 206 ++++++++++++++++++++++-------------- 8 files changed, 140 insertions(+), 102 deletions(-) -- 2.19.2