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[2620:137:e000::1:20]) by mx.google.com with ESMTP id w4-20020a1709027b8400b001a51bb4ad81si10859663pll.44.2023.05.30.01.24.23; Tue, 30 May 2023 01:24:37 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=ePA0Sj4e; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230100AbjE3IHe (ORCPT + 99 others); Tue, 30 May 2023 04:07:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230104AbjE3IHL (ORCPT ); Tue, 30 May 2023 04:07:11 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A2D3E5F; Tue, 30 May 2023 01:06:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1685434006; x=1716970006; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=3NUJ2cV526DtOmRsdjgiB8BAWkISfmdbH9OrsnpKKCA=; b=ePA0Sj4et55eLFzeuvoOqqtw9lnmEFV7f/t413xNcDEHZiWCYdZlUnQD lvEqYmfdmbho0vUVORm+9jOtpY/B13XvgSmYXgRptxe/7+U3dO10YcOKK QfT701J0TQYILBE9/z63L364amL2YdjGrfbc8s2H2qFOKx/L/MmbyMLqW w5mansNW0WptJ6mRYmvb3GnffIcqf0Dwc7miErg493dZ3bkJpb5HitIOW B7OLD3R0Pi4h3CC0xxvxGz1WRab2S59R9Z4+5pb78PBpd557Vc6i+HrQG iFFxJqRos3LK75H3Dis8UTCGght0r/pVENy/J+DEfU0w7dxoWarhKeTyR A==; X-IronPort-AV: E=McAfee;i="6600,9927,10725"; a="335196940" X-IronPort-AV: E=Sophos;i="6.00,203,1681196400"; d="scan'208";a="335196940" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 May 2023 01:06:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10725"; a="706326971" X-IronPort-AV: E=Sophos;i="6.00,203,1681196400"; d="scan'208";a="706326971" Received: from fyin-dev.sh.intel.com ([10.239.159.32]) by orsmga002.jf.intel.com with ESMTP; 30 May 2023 01:06:43 -0700 From: Yin Fengwei To: willy@infradead.org, ryan.roberts@arm.com, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: fengwei.yin@intel.com Subject: [PATCH 3/4] mm: mark PTEs referencing the accessed folio young Date: Tue, 30 May 2023 16:07:30 +0800 Message-Id: <20230530080731.1462122-4-fengwei.yin@intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230530080731.1462122-1-fengwei.yin@intel.com> References: <20230530080731.1462122-1-fengwei.yin@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-4.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767306772305795496?= X-GMAIL-MSGID: =?utf-8?q?1767306772305795496?= To allow using larger TLB entries, it's better to mark the PTEs of same folio accessed when setup the PTEs. Reported-by: Ryan Roberts Signed-off-by: Yin Fengwei --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index c359fb8643e5..2615ea552613 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4259,7 +4259,7 @@ void set_pte_range(struct vm_fault *vmf, struct folio *folio, struct vm_area_struct *vma = vmf->vma; bool uffd_wp = pte_marker_uffd_wp(vmf->orig_pte); bool write = vmf->flags & FAULT_FLAG_WRITE; - bool prefault = vmf->address != addr; + bool prefault = (addr > vmf->address) || ((addr + nr) < vmf->address); pte_t entry; flush_icache_pages(vma, page, nr);