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=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 266AEC433DB for ; Wed, 6 Jan 2021 08:50:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DCE1F2310B for ; Wed, 6 Jan 2021 08:50:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726695AbhAFIuU (ORCPT ); Wed, 6 Jan 2021 03:50:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726157AbhAFIuT (ORCPT ); Wed, 6 Jan 2021 03:50:19 -0500 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A50C9C06134C for ; Wed, 6 Jan 2021 00:49:39 -0800 (PST) Received: by mail-pj1-x1031.google.com with SMTP id hk16so1241796pjb.4 for ; Wed, 06 Jan 2021 00:49:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=MJ7EXnrnjhy7+uYeV34kijGi9OXt4E2hNZBzDKNjCfU=; b=asObGoSIMPvAwU5SHqpDMotcGC0UjYsXRcsgmrKMTgKJ1dNK/O5ouxREgMZDHIDIyE TctjLAYpcLcS/+PctbvaJv5wJGj2ajWaEH9r5896EeRNTvdv68aT23SBy0yXSxvS/vVW HLgWpwELnYK0FnYyLMZ71ET0u0m5UiqcWNeITKd5BeqLfOuJTm4HZ2HyxVl7NQkNSXeT PqZ7opAzPZiFmjvsXW4nRxQdsiajL5Q5A0jiy2W53M3laLFVyvzUR4b3XJHgGrPrZHhb qDr5HL+X8TZd8PDjmsng90OzUQ6bX9cNEM7x/vwQ/nblg/dJqFtgrI33Az7Ou36+3lWM R+HQ== 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=MJ7EXnrnjhy7+uYeV34kijGi9OXt4E2hNZBzDKNjCfU=; b=PwET+m/rdbR2BdntZB8ex0FiXRYnOgfAVfCAlF6l1+jGUsGjxAkMaT3fchaB76FIoa q+tpU0nvTuf6jypu34eDVN5+2zqNOIAsn8R36KKXbw9k5GeuIoWCZrhOSuHQ2N9MSpuL w8IoIpjl2iGOd0DTjqh5in0aUatOktvplmRr7FPopNR1OM+DjHBoFM+rJxv04icHejvN /6xxxJvjNlZTuKPxUTNrIoIbcQP30meWNip1S9EPnpK6jF2YW7xCmkMN59OonBddyZI4 RCQLqFMiQt+fs+4W2ZG/wI3ioZY/4bgW3YBPsY/Wh/wVXUMkiq0ZETgG2l3hcx560xDq Kf4A== X-Gm-Message-State: AOAM531n0a+539oCEZxexOBo7fKcKr5UdcJgaDcyuZOWI2oG/SW8vbsz CF0ZVSE88RAaxss67ns7y5zWQ29J/pZh2VyeRhg= X-Google-Smtp-Source: ABdhPJyPVD0EI/kuz45CeSBqtJJ2E0++1zedCl9qsb+hROtQBU2JorcSzunxBILZ7c4GNzUPeDM9Fg== X-Received: by 2002:a17:902:b943:b029:dc:6bd:5562 with SMTP id h3-20020a170902b943b02900dc06bd5562mr3563335pls.59.1609922979261; Wed, 06 Jan 2021 00:49:39 -0800 (PST) Received: from localhost.localdomain ([139.177.225.232]) by smtp.gmail.com with ESMTPSA id h8sm1851806pjc.2.2021.01.06.00.49.35 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 06 Jan 2021 00:49:38 -0800 (PST) From: Muchun Song To: mike.kravetz@oracle.com, akpm@linux-foundation.org Cc: n-horiguchi@ah.jp.nec.com, ak@linux.intel.com, mhocko@suse.cz, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Muchun Song Subject: [PATCH v2 0/6] Fix some bugs about HugeTLB code Date: Wed, 6 Jan 2021 16:47:33 +0800 Message-Id: <20210106084739.63318-1-songmuchun@bytedance.com> X-Mailer: git-send-email 2.21.0 (Apple Git-122) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series aims to fix some bugs and add some improvements. Changelog since v1 -> v2: - Export set_page_huge_active() in patch #2 to fix. - Using head[3].mapping to indicate the page is freed in patch #3. - Flush @free_hpage_work in patch #4. Muchun Song (6): mm: migrate: do not migrate HugeTLB page whose refcount is one mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page mm: hugetlb: fix a race between freeing and dissolving the page mm: hugetlb: add return -EAGAIN for dissolve_free_huge_page mm: hugetlb: fix a race between isolating and freeing page mm: hugetlb: remove VM_BUG_ON_PAGE from page_huge_active fs/hugetlbfs/inode.c | 3 ++- include/linux/hugetlb.h | 2 ++ mm/hugetlb.c | 69 +++++++++++++++++++++++++++++++++++++++++++------ mm/migrate.c | 6 +++++ 4 files changed, 71 insertions(+), 9 deletions(-) -- 2.11.0