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 234CFC3DA66 for ; Wed, 23 Aug 2023 21:01:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236604AbjHWVAv (ORCPT ); Wed, 23 Aug 2023 17:00:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236906AbjHWVAd (ORCPT ); Wed, 23 Aug 2023 17:00:33 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 414F210DA for ; Wed, 23 Aug 2023 14:00:31 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A2D06618C1 for ; Wed, 23 Aug 2023 21:00:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD43CC433C9; Wed, 23 Aug 2023 21:00:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1692824429; bh=bnQ0iUxDT8C5NJh6D7Y4Uy4lPsvL/Iq6k5CZ/9D0VWw=; h=Date:To:From:Subject:From; b=y3sd4OgwQ89YvKTyb+15jLhDastQ2XdAO77O6/PhOqS8rGKVZMZBW8Voj8jskJz8Y /GnZavkOyDAmg/Gdp5s1BGrvoblblTiDYbu3/no4GqzULCJdJ2unlIntxgIOc7MUPg pPQnrL0yj+Jj29UPRnwSqWuVt5CufsMvAPZtQm28= Date: Wed, 23 Aug 2023 14:00:28 -0700 To: mm-commits@vger.kernel.org, willy@infradead.org, axboe@kernel.dk, mike.kravetz@oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: + hugetlb-clear-flags-in-tail-pages-that-will-be-freed-individually.patch added to mm-stable branch Message-Id: <20230823210029.CD43CC433C9@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: hugetlb: clear flags in tail pages that will be freed individually has been added to the -mm mm-stable branch. Its filename is hugetlb-clear-flags-in-tail-pages-that-will-be-freed-individually.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/hugetlb-clear-flags-in-tail-pages-that-will-be-freed-individually.patch This patch will later appear in the mm-stable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Mike Kravetz Subject: hugetlb: clear flags in tail pages that will be freed individually Date: Tue, 22 Aug 2023 15:30:43 -0700 Link: https://lkml.kernel.org/r/20230822231741.GC4509@monkey Fixes: ebc1baf5c9b4 ("mm: free up a word in the first tail page") Signed-off-by: Mike Kravetz Cc: Jens Axboe Cc: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- mm/hugetlb.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) --- a/mm/hugetlb.c~hugetlb-clear-flags-in-tail-pages-that-will-be-freed-individually +++ a/mm/hugetlb.c @@ -1484,6 +1484,7 @@ static void __destroy_compound_gigantic_ for (i = 1; i < nr_pages; i++) { p = folio_page(folio, i); + p->flags &= ~PAGE_FLAGS_CHECK_AT_FREE; p->mapping = NULL; clear_compound_head(p); if (!demote) @@ -1702,8 +1703,6 @@ static void add_hugetlb_folio(struct hst static void __update_and_free_hugetlb_folio(struct hstate *h, struct folio *folio) { - int i; - struct page *subpage; bool clear_dtor = folio_test_hugetlb_vmemmap_optimized(folio); if (hstate_is_gigantic(h) && !gigantic_page_runtime_supported()) @@ -1745,14 +1744,6 @@ static void __update_and_free_hugetlb_fo spin_unlock_irq(&hugetlb_lock); } - for (i = 0; i < pages_per_huge_page(h); i++) { - subpage = folio_page(folio, i); - subpage->flags &= ~(1 << PG_locked | 1 << PG_error | - 1 << PG_referenced | 1 << PG_dirty | - 1 << PG_active | 1 << PG_private | - 1 << PG_writeback); - } - /* * Non-gigantic pages demoted from CMA allocated gigantic pages * need to be given back to CMA in free_gigantic_folio. _ Patches currently in -mm which might be from mike.kravetz@oracle.com are hugetlb-clear-flags-in-tail-pages-that-will-be-freed-individually.patch