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 0A576C4332F for ; Fri, 10 Nov 2023 17:43:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234649AbjKJRnV (ORCPT ); Fri, 10 Nov 2023 12:43:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45976 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234674AbjKJRl7 (ORCPT ); Fri, 10 Nov 2023 12:41:59 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8A7B446CB for ; Fri, 10 Nov 2023 09:25:52 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 875C7C433C8; Fri, 10 Nov 2023 17:25:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1699637152; bh=d4TGtwtZCUva07tQd6GEmKInqypMAWL4Oemj1eeJIWI=; h=Date:To:From:Subject:From; b=AQgBonQhQVxLQMcAFpk7jwqlaLrI5uJ8yzKOoIz86SLWzgzoFhF02mwvFr4Ky7NBN YxCknonqD+4otUu8XqbL07+J39dWMLP82TEbJjbTH6E466MFaHry4qXWC93p8D0meF PorHAniXVrqE0oMjKirparxZ7AwtbMAsLGfNDcKo= Date: Fri, 10 Nov 2023 09:25:51 -0800 To: mm-commits@vger.kernel.org, willy@infradead.org, gregory.price@memverge.com, david@redhat.com, wangkefeng.wang@huawei.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-task_mmu-use-a-folio-in-clear_refs_pte_range.patch added to mm-unstable branch Message-Id: <20231110172552.875C7C433C8@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: mm: task_mmu: use a folio in clear_refs_pte_range() has been added to the -mm mm-unstable branch. Its filename is mm-task_mmu-use-a-folio-in-clear_refs_pte_range.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-task_mmu-use-a-folio-in-clear_refs_pte_range.patch This patch will later appear in the mm-unstable 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: Kefeng Wang Subject: mm: task_mmu: use a folio in clear_refs_pte_range() Date: Fri, 10 Nov 2023 11:33:23 +0800 Use a folio to save two compound_head() calls in clear_refs_pte_range(). Link: https://lkml.kernel.org/r/20231110033324.2455523-7-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang Cc: David Hildenbrand Cc: Gregory Price Cc: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- fs/proc/task_mmu.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) --- a/fs/proc/task_mmu.c~mm-task_mmu-use-a-folio-in-clear_refs_pte_range +++ a/fs/proc/task_mmu.c @@ -1161,7 +1161,7 @@ static int clear_refs_pte_range(pmd_t *p struct vm_area_struct *vma = walk->vma; pte_t *pte, ptent; spinlock_t *ptl; - struct page *page; + struct folio *folio; ptl = pmd_trans_huge_lock(pmd, vma); if (ptl) { @@ -1173,12 +1173,12 @@ static int clear_refs_pte_range(pmd_t *p if (!pmd_present(*pmd)) goto out; - page = pmd_page(*pmd); + folio = page_folio(pmd_page(*pmd)); /* Clear accessed and referenced bits. */ pmdp_test_and_clear_young(vma, addr, pmd); - test_and_clear_page_young(page); - ClearPageReferenced(page); + folio_test_clear_young(folio); + folio_clear_referenced(folio); out: spin_unlock(ptl); return 0; @@ -1200,14 +1200,14 @@ out: if (!pte_present(ptent)) continue; - page = vm_normal_page(vma, addr, ptent); - if (!page) + folio = vm_normal_folio(vma, addr, ptent); + if (!folio) continue; /* Clear accessed and referenced bits. */ ptep_test_and_clear_young(vma, addr, pte); - test_and_clear_page_young(page); - ClearPageReferenced(page); + folio_test_clear_young(folio); + folio_clear_referenced(folio); } pte_unmap_unlock(pte - 1, ptl); cond_resched(); _ Patches currently in -mm which might be from wangkefeng.wang@huawei.com are fs-proc-page-remove-unneeded-pagetail-pageslab-check.patch fs-proc-page-use-a-folio-in-stable_page_flags.patch fs-proc-page-respect-folio-head-page-flag-placement.patch mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch mm-task_mmu-use-a-folio-in-smaps_account.patch mm-task_mmu-use-a-folio-in-clear_refs_pte_range.patch page_idle-kill-page-idle-and-young-wrapper.patch