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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 B202DC433DB for ; Wed, 24 Feb 2021 04:29:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E13564E6F for ; Wed, 24 Feb 2021 04:29:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232761AbhBXE3k (ORCPT ); Tue, 23 Feb 2021 23:29:40 -0500 Received: from mail.kernel.org ([198.145.29.99]:54948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232446AbhBXE3j (ORCPT ); Tue, 23 Feb 2021 23:29:39 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id E33F464E60; Wed, 24 Feb 2021 04:28:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1614140939; bh=9DsVTzTqUapN/iE5DG8PBWMsADvZ8Llz/q4wlcO87A0=; h=Date:From:To:Subject:From; b=G64OmbGV6z+vkbw2ZlCH0zsOerPKW5gvfq4ro0t2yBqBfJJY/Nv5fx5PJJWoHeQF3 FidmPN8n5eVHPsPbWuf/EpObXBcqCFwd4bc9kihYC45V6RF5S1bsPN9/BlS1sOXcU8 tzujQWgjv2USXKWAtCKhzFHJvFnIJWQ3n4cIhC6o= Date: Tue, 23 Feb 2021 20:28:58 -0800 From: akpm@linux-foundation.org To: mhocko@suse.com, mike.kravetz@oracle.com, mm-commits@vger.kernel.org, osalvador@suse.de, songmuchun@bytedance.com Subject: + hugetlb-use-pageprivate-for-hugetlb-specific-page-flags-fix-2.patch added to -mm tree Message-ID: <20210224042858.x12k3SMNe%akpm@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: hugetlb: document the new location of page subpool pointer has been added to the -mm tree. Its filename is hugetlb-use-pageprivate-for-hugetlb-specific-page-flags-fix-2.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/hugetlb-use-pageprivate-for-hugetlb-specific-page-flags-fix-2.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/hugetlb-use-pageprivate-for-hugetlb-specific-page-flags-fix-2.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Mike Kravetz Subject: hugetlb: document the new location of page subpool pointer Expand comments, no functional change. Link: https://lkml.kernel.org/r/20210224040439.351882-1-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz Cc: Michal Hocko Cc: Oscar Salvador Cc: Muchun Song Signed-off-by: Andrew Morton --- include/linux/hugetlb.h | 3 +++ 1 file changed, 3 insertions(+) --- a/include/linux/hugetlb.h~hugetlb-use-pageprivate-for-hugetlb-specific-page-flags-fix-2 +++ a/include/linux/hugetlb.h @@ -476,6 +476,9 @@ unsigned long hugetlb_get_unmapped_area( * huegtlb page specific state flags. These flags are located in page.private * of the hugetlb head page. Functions created via the below macros should be * used to manipulate these flags. + * Note: The hugetlb page subpool pointer previously located at page.private + * was moved to page[1].private to make room for flags in the head page. See + * hugetlb_page_subpool(). * * HPG_restore_reserve - Set when a hugetlb page consumes a reservation at * allocation time. Cleared when page is fully instantiated. Free _ Patches currently in -mm which might be from mike.kravetz@oracle.com are hugetlb-fix-update_and_free_page-contig-page-struct-assumption.patch hugetlb-fix-copy_huge_page_from_user-contig-page-struct-assumption.patch hugetlb-use-pageprivate-for-hugetlb-specific-page-flags.patch hugetlb-use-pageprivate-for-hugetlb-specific-page-flags-fix.patch hugetlb-use-pageprivate-for-hugetlb-specific-page-flags-fix-2.patch hugetlb-convert-page_huge_active-hpagemigratable-flag.patch hugetlb-convert-pagehugetemporary-to-hpagetemporary-flag.patch hugetlb-convert-pagehugefreed-to-hpagefreed-flag.patch include-linux-hugetlbh-add-synchronization-information-for-new-hugetlb-specific-flags.patch mm-hugetlb-change-hugetlb_reserve_pages-to-type-bool.patch hugetlbfs-remove-special-hugetlbfs_set_page_dirty.patch