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=-18.7 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, USER_AGENT_GIT 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 1D6B5C43470 for ; Fri, 30 Apr 2021 19:52:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0D4A9613F8 for ; Fri, 30 Apr 2021 19:52:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233419AbhD3Txl (ORCPT ); Fri, 30 Apr 2021 15:53:41 -0400 Received: from server.lespinasse.org ([63.205.204.226]:42153 "EHLO server.lespinasse.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232273AbhD3TxW (ORCPT ); Fri, 30 Apr 2021 15:53:22 -0400 DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=lespinasse.org; i=@lespinasse.org; q=dns/txt; s=srv-14-ed; t=1619812353; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : from; bh=XrNJKiD+gmmouaQBEDV3mKD7UNcz8msknbq0XbuTisY=; b=c/51/1unLYjIqVdN/mCnwDipupc8y9BaUfUWoaPw+8lcfZzM8MTrGl0GR8iCl86G/el+9 VkBqOtDJ9Dy7dbLAw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lespinasse.org; i=@lespinasse.org; q=dns/txt; s=srv-14-rsa; t=1619812353; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : from; bh=XrNJKiD+gmmouaQBEDV3mKD7UNcz8msknbq0XbuTisY=; b=WpKVbH3zCSFSsOUWUEnw+ZlensRRNG8hYH+1jHHA3Hyq1YoY2rSXA/wnfwQ2Jc2ePKIeO eWfcLF3MFa7LhjKg4RzrswI+/6Lydp+qTR0Tt98CAhdDUki3z08/wYDH6Ulm41YdbbRgA50 r6AMvdvhQN2OO1GXwCcjLxj8tDxcX7HgfD8vGOL60hYuAJkE7QYQO8KSbZFJBEfIcrjeQf8 lSVKjvYwHUvz0RnDbdJwU+f3+Kr4q/GMwN6YXyeVLiU4MZQo9tXfg28en2dVA1y+GeSKHnJ W1Vv+qI7lse73tZxG0LvC5oySnCnQqHqywx2us2XmTIDnarGZZgsuI9PWLrA== Received: from zeus.lespinasse.org (zeus.lespinasse.org [IPv6:fd00::150:0]) by server.lespinasse.org (Postfix) with ESMTPS id 2635516030E; Fri, 30 Apr 2021 12:52:33 -0700 (PDT) Received: by zeus.lespinasse.org (Postfix, from userid 1000) id 144E919F525; Fri, 30 Apr 2021 12:52:33 -0700 (PDT) From: Michel Lespinasse To: Linux-MM , Linux-Kernel Cc: Laurent Dufour , Peter Zijlstra , Michal Hocko , Matthew Wilcox , Rik van Riel , Paul McKenney , Andrew Morton , Suren Baghdasaryan , Joel Fernandes , Andy Lutomirski , Michel Lespinasse Subject: [PATCH 04/29] do_anonymous_page: use update_mmu_tlb() Date: Fri, 30 Apr 2021 12:52:05 -0700 Message-Id: <20210430195232.30491-5-michel@lespinasse.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210430195232.30491-1-michel@lespinasse.org> References: <20210430195232.30491-1-michel@lespinasse.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org update_mmu_tlb() can be used instead of update_mmu_cache() when the page fault handler detects that it lost the race to another page fault. (TODO double check with Bibo Mao ) Signed-off-by: Michel Lespinasse --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index 550405fc3b5e..59ff65cb3ab4 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3567,7 +3567,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf) vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address, &vmf->ptl); if (!pte_none(*vmf->pte)) { - update_mmu_cache(vma, vmf->address, vmf->pte); + update_mmu_tlb(vma, vmf->address, vmf->pte); goto release; } -- 2.20.1