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 62CF6C6379F for ; Mon, 13 Feb 2023 23:55:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229462AbjBMXz2 (ORCPT ); Mon, 13 Feb 2023 18:55:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231308AbjBMXzW (ORCPT ); Mon, 13 Feb 2023 18:55:22 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6674617144 for ; Mon, 13 Feb 2023 15:55:20 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 029A46135D for ; Mon, 13 Feb 2023 23:55:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5861BC433EF; Mon, 13 Feb 2023 23:55:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1676332519; bh=Awpj24ph7ecpVs+gsqIEF/ZGh3hqnKBbpdDuMaT6ZMo=; h=Date:To:From:Subject:From; b=uWSRmPnW90DaJtNNPzVQ07IXrwkkTVVnujJ0OfUfc5vc+UW2ApSvwOYTqcUtx4LYa G5xv7zcnwfMdmVlydH1bAsxEw/rCeKc9vlESSosHzV1QU3yV62lvLWx6xurRdQbAZc vr94c129jXXaSq8AvQhfUWWbKU5eY6s+vufh+oKg= Date: Mon, 13 Feb 2023 15:55:18 -0800 To: mm-commits@vger.kernel.org, willy@infradead.org, songmuchun@bytedance.com, mike.kravetz@oracle.com, lkp@intel.com, jhubbard@nvidia.com, gerald.schaefer@linux.ibm.com, sidhartha.kumar@oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-hugetlb-convert-hugetlbfs_pagecache_present-to-folios.patch removed from -mm tree Message-Id: <20230213235519.5861BC433EF@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: convert hugetlbfs_pagecache_present() to folios has been removed from the -mm tree. Its filename was mm-hugetlb-convert-hugetlbfs_pagecache_present-to-folios.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Sidhartha Kumar Subject: mm/hugetlb: convert hugetlbfs_pagecache_present() to folios Date: Wed, 25 Jan 2023 09:05:31 -0800 Refactor hugetlbfs_pagecache_present() to avoid getting and dropping a refcount on a page. Use RCU and page_cache_next_miss() instead. Link: https://lkml.kernel.org/r/20230125170537.96973-3-sidhartha.kumar@oracle.com Suggested-by: Matthew Wilcox Signed-off-by: Sidhartha Kumar Cc: Gerald Schaefer Cc: John Hubbard Cc: kernel test robot Cc: Mike Kravetz Cc: Muchun Song Signed-off-by: Andrew Morton --- --- a/mm/hugetlb.c~mm-hugetlb-convert-hugetlbfs_pagecache_present-to-folios +++ a/mm/hugetlb.c @@ -5651,17 +5651,15 @@ out_release_old: static bool hugetlbfs_pagecache_present(struct hstate *h, struct vm_area_struct *vma, unsigned long address) { - struct address_space *mapping; - pgoff_t idx; - struct page *page; + struct address_space *mapping = vma->vm_file->f_mapping; + pgoff_t idx = vma_hugecache_offset(h, vma, address); + bool present; - mapping = vma->vm_file->f_mapping; - idx = vma_hugecache_offset(h, vma, address); + rcu_read_lock(); + present = page_cache_next_miss(mapping, idx, 1) != idx; + rcu_read_unlock(); - page = find_get_page(mapping, idx); - if (page) - put_page(page); - return page != NULL; + return present; } int hugetlb_add_to_page_cache(struct page *page, struct address_space *mapping, _ Patches currently in -mm which might be from sidhartha.kumar@oracle.com are