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=-18.8 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 93BAFC433B4 for ; Wed, 7 Apr 2021 01:51:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 60BF6613ED for ; Wed, 7 Apr 2021 01:51:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347895AbhDGBwD (ORCPT ); Tue, 6 Apr 2021 21:52:03 -0400 Received: from server.lespinasse.org ([63.205.204.226]:50997 "EHLO server.lespinasse.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343701AbhDGBvt (ORCPT ); Tue, 6 Apr 2021 21:51:49 -0400 DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=lespinasse.org; i=@lespinasse.org; q=dns/txt; s=srv-11-ed; t=1617759902; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : from; bh=Tl7c+fKXT/KEyeD0xB/+YiIdgIzXbLApcUUyx6tYhAc=; b=FhQJE30mUdou3MxgfjANMalYk0yghDWwQJi43mxwrXTvsJtXHEht3xYoY0uKAJ6JB1ifc I0uHh5I2VEUVnMwAg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lespinasse.org; i=@lespinasse.org; q=dns/txt; s=srv-11-rsa; t=1617759902; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : from; bh=Tl7c+fKXT/KEyeD0xB/+YiIdgIzXbLApcUUyx6tYhAc=; b=alvJkzgZCHNhI/J/Oxso+FnyCCyAhh/3VhhOpJiJCr7s9TEQrVPgikpbTw51VxBgDCCQI w7FkTc0lTMUagVapscii/LJG9Zm08jY9YDNgDXUE0z4lW5kR1W+S9Bm7eahNxbSt7i1DF/K 4An6MUsN2GjPOpl1dUda0RSDWa3cLilqgXOLffoFdN0/sfyYZzX5wCQWbvcMLlU4vZczU++ RshCSwV2fhPQrh/qq33PSljbSoowyZ9Hha9n3Tc6S2Z3iQmF0nZ/D/jZQ3zPPrxmYhm2yiV f5fZLHOHzsrbKR0OXKHH9hRON9E8GJ3/o+TyF0pKb2X/3KjsPh7xbhDfDKOg== Received: from zeus.lespinasse.org (zeus.lespinasse.org [IPv6:fd00::150:0]) by server.lespinasse.org (Postfix) with ESMTPS id 7C44916022D; Tue, 6 Apr 2021 18:45:02 -0700 (PDT) Received: by zeus.lespinasse.org (Postfix, from userid 1000) id 68FC519F320; Tue, 6 Apr 2021 18:45:02 -0700 (PDT) From: Michel Lespinasse To: Linux-MM Cc: Laurent Dufour , Peter Zijlstra , Michal Hocko , Matthew Wilcox , Rik van Riel , Paul McKenney , Andrew Morton , Suren Baghdasaryan , Joel Fernandes , Rom Lemarchand , Linux-Kernel , Michel Lespinasse Subject: [RFC PATCH 03/37] do_anonymous_page: use update_mmu_tlb() Date: Tue, 6 Apr 2021 18:44:28 -0700 Message-Id: <20210407014502.24091-4-michel@lespinasse.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210407014502.24091-1-michel@lespinasse.org> References: <20210407014502.24091-1-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. 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 5efa07fb6cdc..8ee4bd239303 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