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 A0CCCC352A1 for ; Wed, 30 Nov 2022 23:44:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229449AbiK3Xoo (ORCPT ); Wed, 30 Nov 2022 18:44:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36096 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229516AbiK3Xon (ORCPT ); Wed, 30 Nov 2022 18:44:43 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89E6B4D5E4 for ; Wed, 30 Nov 2022 15:44:41 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 4F86DB81D75 for ; Wed, 30 Nov 2022 23:44:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DF99CC433D7; Wed, 30 Nov 2022 23:44:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1669851879; bh=J9aIEFHllA/1gq7innj/DOjXubk7ADC/YLxqFAQ8AnQ=; h=Date:To:From:Subject:From; b=pTbGWPwwPLjaC2Tq2Vhj3bPxrm8z3W90/uQ1YRFd7GCPHl+V5v/VSwm+UCSIPULfX oCgxExQev3PlkUxgnOsqUlBOfpIiy4VNRa5gYeEQyPId3Xt0tNlLv+ShOAqC2wIA+S q6xw51DGaeKPJZ3BTF8dCoZAufcxAGeoPfi84tLE= Date: Wed, 30 Nov 2022 15:44:38 -0800 To: mm-commits@vger.kernel.org, songmuchun@bytedance.com, joao.m.martins@oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: [folded-merged] mm-hugetlb_vmemmap-remap-head-page-to-newly-allocated-page-v4.patch removed from -mm tree Message-Id: <20221130234438.DF99CC433D7@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: mm-hugetlb_vmemmap-remap-head-page-to-newly-allocated-page-v4 has been removed from the -mm tree. Its filename was mm-hugetlb_vmemmap-remap-head-page-to-newly-allocated-page-v4.patch This patch was dropped because it was folded into mm-hugetlb_vmemmap-remap-head-page-to-newly-allocated-page.patch ------------------------------------------------------ From: Joao Martins Subject: mm-hugetlb_vmemmap-remap-head-page-to-newly-allocated-page-v4 Date: Thu, 10 Nov 2022 12:12:14 +0000 add smp_wmb() to ensure page contents are visible prior to PTE write Link: https://lkml.kernel.org/r/20221110121214.6297-1-joao.m.martins@oracle.com Signed-off-by: Joao Martins Reviewed-by: Muchun Song Signed-off-by: Andrew Morton --- mm/hugetlb_vmemmap.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/mm/hugetlb_vmemmap.c~mm-hugetlb_vmemmap-remap-head-page-to-newly-allocated-page-v4 +++ a/mm/hugetlb_vmemmap.c @@ -246,6 +246,13 @@ static void vmemmap_remap_pte(pte_t *pte if (unlikely(addr == walk->reuse_addr)) { pgprot = PAGE_KERNEL; list_del(&walk->reuse_page->lru); + + /* + * Makes sure that preceding stores to the page contents from + * vmemmap_remap_free() become visible before the set_pte_at() + * write. + */ + smp_wmb(); } entry = mk_pte(walk->reuse_page, pgprot); _ Patches currently in -mm which might be from joao.m.martins@oracle.com are mm-hugetlb_vmemmap-remap-head-page-to-newly-allocated-page.patch