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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 247C2C43334 for ; Tue, 28 Jun 2022 09:24:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344205AbiF1JYO (ORCPT ); Tue, 28 Jun 2022 05:24:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344174AbiF1JXt (ORCPT ); Tue, 28 Jun 2022 05:23:49 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 562D91EAD9 for ; Tue, 28 Jun 2022 02:23:48 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id o18so10564075plg.2 for ; Tue, 28 Jun 2022 02:23:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PQkt4wjPT/v+iF+fXDGRisMQCM0vLDWYyifuIV/OGDo=; b=BGy1MI8xqjO6lduBhMa13lY37kGteP8POqCXl3BZdOwHo9Opp1aEltf4yPcfE+uJ+2 ITWTBRfi0L2QIwl4XxMjPM/RcSAjUuGie94NjWZ0TSq3iPSH3m7NdNUSnvWYoyrIqjjj wkMqlgUCZLwlmXIWSvSo8zk4PWzCIDtGfDBMK87KLwi0vavL57ofaJpo4R+pPLDm4og/ /DZrlTwoxGLTO8ZDdWHkX4l9IIH9xzMH+zfkDqNK6rp+Cx7gTAIZX1rtZGL5ZZQ0ZJV3 kibsGCfxlIe99uHGHgCQwvo15q+zI3SrLYIcHxMgWZNMnUMQuM9WX8Afa/Ic8O+hzH9K /2cg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PQkt4wjPT/v+iF+fXDGRisMQCM0vLDWYyifuIV/OGDo=; b=Cg8wH/FA7YRM5U0dDmgyRleuW41gjszVpqiZ2xkthRv1tucBxud9Xb9mmUSu6txGUS Ve+UCQlzEeJswsEO4FrBnqbVEkkEVUYPqj3WZd/tLSfWIzoNerkjQIApLXKj5TyhDejY 2Aj4DCZRkNElpbCKfNFigBJB9Rb6LokTbc/80Ff3inhxybyIAjEM7oGZDbeCOd5PBMil YVDLQhKSJqVwx/UFWJ14FuhI9eTvNttux28hrRlJuFRqjLDw6YtmsdghfLkELMiFuHS5 QNIwdm4Q7AauJ/G6LmdohGg/ipvSo4mP24krMZwwWX5BHsfrrjdJAfqDdg5BZXT2wGyl tOQg== X-Gm-Message-State: AJIora/MKdlbaV802KyjvGT2UklVWADjOyLXeukvqWZqD2r+rN7DJWuP be6gPaHkdbz/H08LWky686el4Q== X-Google-Smtp-Source: AGRyM1ue3KkVfkoriauuRkSduIpdUzZ8CoxO4+O4HV1szaRrCPOfb8vOnORTEmnfN6gQ6hitXaQo/A== X-Received: by 2002:a17:90b:1d0a:b0:1ee:de8e:9d58 with SMTP id on10-20020a17090b1d0a00b001eede8e9d58mr10347710pjb.39.1656408227811; Tue, 28 Jun 2022 02:23:47 -0700 (PDT) Received: from FVFYT0MHHV2J.bytedance.net ([139.177.225.245]) by smtp.gmail.com with ESMTPSA id mm9-20020a17090b358900b001ec729d4f08sm8780463pjb.54.2022.06.28.02.23.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Jun 2022 02:23:47 -0700 (PDT) From: Muchun Song To: mike.kravetz@oracle.com, david@redhat.com, akpm@linux-foundation.org, corbet@lwn.net Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, duanxiongchun@bytedance.com, Muchun Song Subject: [PATCH v2 0/8] Simplify hugetlb vmemmap and improve its readability Date: Tue, 28 Jun 2022 17:22:27 +0800 Message-Id: <20220628092235.91270-1-songmuchun@bytedance.com> X-Mailer: git-send-email 2.32.1 (Apple Git-133) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org This series aims to simplify hugetlb vmemmap and improve its readability and is based on next-20220627. v2: - Collect Reviewed-ed and Acked-by. - Improve patch 6's log print. - Add patch 7 to improve vmemmap_dedup.rst. - Add patch 8 for cleanup. Muchun Song (8): mm: hugetlb_vmemmap: delete hugetlb_optimize_vmemmap_enabled() mm: hugetlb_vmemmap: optimize vmemmap_optimize_mode handling mm: hugetlb_vmemmap: introduce the name HVO mm: hugetlb_vmemmap: move vmemmap code related to HugeTLB to hugetlb_vmemmap.c mm: hugetlb_vmemmap: replace early_param() with core_param() mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability mm: hugetlb_vmemmap: move code comments to vmemmap_dedup.rst mm: hugetlb_vmemmap: use PTRS_PER_PTE instead of PMD_SIZE / PAGE_SIZE Documentation/admin-guide/kernel-parameters.txt | 7 +- Documentation/admin-guide/mm/hugetlbpage.rst | 4 +- Documentation/admin-guide/mm/memory-hotplug.rst | 4 +- Documentation/admin-guide/sysctl/vm.rst | 3 +- Documentation/vm/vmemmap_dedup.rst | 72 ++- arch/arm64/mm/flush.c | 13 +- fs/Kconfig | 12 +- include/linux/hugetlb.h | 7 +- include/linux/mm.h | 7 - include/linux/page-flags.h | 32 +- include/linux/sysctl.h | 4 + mm/hugetlb.c | 15 +- mm/hugetlb_vmemmap.c | 589 ++++++++++++++++++------ mm/hugetlb_vmemmap.h | 45 +- mm/sparse-vmemmap.c | 399 ---------------- 15 files changed, 567 insertions(+), 646 deletions(-) base-commit: aab35c3d5112df6e329a1a5a5a1881e5c4ca3821 -- 2.11.0