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=-3.1 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 D2571C282C4 for ; Tue, 12 Feb 2019 17:57:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A46C920869 for ; Tue, 12 Feb 2019 17:57:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cWv1bpsh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729796AbfBLR5Q (ORCPT ); Tue, 12 Feb 2019 12:57:16 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:38076 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727915AbfBLR5P (ORCPT ); Tue, 12 Feb 2019 12:57:15 -0500 Received: by mail-pg1-f195.google.com with SMTP id g189so1594991pgc.5 for ; Tue, 12 Feb 2019 09:57:15 -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=okXsoq+U9IeaU0VkH1d2ZCj70CXHgmSj7Z/Roa4I0YU=; b=cWv1bpsh0BQ+ZGN8tDbP9K4zEswvZNXfg/nITJ2zYAx6pHZWuhWnaevWJ/bVgLbzdU f1Z8jpU9lOf3yl8JFg2jtgfHYDTwT3U1SfNSHPnimlhk3Z29LecBm7cCq5fIKtDLG7lh ga7Dm5nDKaZgcDB2jqJyvMUuvvlw2MB4BTprxZ+0Cfi9ajbkcVB0IZOkhUtIhe5ylV9i /f7VmNF+Oq6WBUUrzrbqn7UL+Rc/l+ymJkQmi9Vyp1hKY384k/CCGLGoDr84qYeb9Xai +ZP7p8q/0g+zv3YXjKzkB/c0ovG/1sapvI6u8/ocqTp9f1gbMKSVIeVEBDEqxB+tknPz BCWg== 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=okXsoq+U9IeaU0VkH1d2ZCj70CXHgmSj7Z/Roa4I0YU=; b=FPvVFGz/fEJCdjiXM4KjP3tad3dSXidZZ7ySsTi47G/cgIhjyqMjh9Hh17Md4luE4U cCEVPdPTft9+Yr5kelaIGBn3sjYF5dQnPNwhcZ1tBPbh0rHFtSmwn0TfukckC/AXR5PI EKT3w42r/kFebrnsCFahNiG5ymXi/oGCAQyfx7H3C6TkIsJx73oNAc/qVoefxY4F89Bd ruW5bw4XVaYRCcTzp1VDkSrEVXNQ6INn9bJdGAD1Zd7YsU3mQ0Mz2NjsZonO2MQe5U8y ctPLyNRdJ3dF+URqz80cZ8YJ7NPxmLM1F3fXd+e4gWNya5cfMvgg5LnS1yqBxjxSOuGj XGrg== X-Gm-Message-State: AHQUAua3UC65x1goJvP2J6MkEPzypsGFNi3DNTy/rOkHpMsXFlDAOEKg b9YgMYSOD0A4Meo5pJ8a3Eg= X-Google-Smtp-Source: AHgI3IaQzDGTUcSHrJMGIIbl5On/Asyf02rHV2C6kaTrOmWnxvGkafqrxzUumtO/1Cj61Ra2JdTwhw== X-Received: by 2002:a63:516:: with SMTP id 22mr4528109pgf.353.1549994235050; Tue, 12 Feb 2019 09:57:15 -0800 (PST) Received: from tower.thefacebook.com ([2620:10d:c090:200::5:4d62]) by smtp.gmail.com with ESMTPSA id z186sm18608427pfz.119.2019.02.12.09.57.13 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 12 Feb 2019 09:57:14 -0800 (PST) From: Roman Gushchin X-Google-Original-From: Roman Gushchin To: linux-mm@kvack.org Cc: Matthew Wilcox , Johannes Weiner , kernel-team@fb.com, Andrew Morton , linux-kernel@vger.kernel.org, Roman Gushchin Subject: [PATCH v2 0/3] vmalloc enhancements Date: Tue, 12 Feb 2019 09:56:45 -0800 Message-Id: <20190212175648.28738-1-guro@fb.com> X-Mailer: git-send-email 2.20.1 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) separates memory allocation and data initialization in alloc_vmap_area() Patch (3) adds vmalloc counter to /proc/meminfo. v2->v1: - rebased on top of current mm tree - switch from atomic to percpu vmalloc page counter RFC->v1: - removed bogus empty lines (suggested by Matthew Wilcox) - made nr_vmalloc_pages static (suggested by Matthew Wilcox) - dropped patch 3 from RFC patchset, will post later with some other changes - dropped RFC Roman Gushchin (3): mm: refactor __vunmap() to avoid duplicated call to find_vm_area() mm: separate memory allocation and actual work in alloc_vmap_area() mm: show number of vmalloc pages in /proc/meminfo fs/proc/meminfo.c | 2 +- include/linux/vmalloc.h | 2 + mm/vmalloc.c | 113 +++++++++++++++++++++++++++------------- 3 files changed, 79 insertions(+), 38 deletions(-) -- 2.20.1