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,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 D6699C433ED for ; Fri, 30 Apr 2021 19:54:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBD546145A for ; Fri, 30 Apr 2021 19:54:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232499AbhD3Tyy (ORCPT ); Fri, 30 Apr 2021 15:54:54 -0400 Received: from server.lespinasse.org ([63.205.204.226]:46307 "EHLO server.lespinasse.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232441AbhD3Txg (ORCPT ); Fri, 30 Apr 2021 15:53:36 -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=V+gT9krnriafAz+sMsWczyeeM3oMiD/qdk5LAIhe9Yg=; b=6H5+DJWUUSgWfXs0KVFOLhcS3YlB+lkUS1LWjaqexBE/zZ535kKaA1aq7BdXF2oe1B1z/ Roh6vuKhxFHU5ZECA== 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=V+gT9krnriafAz+sMsWczyeeM3oMiD/qdk5LAIhe9Yg=; b=HZvNX4/POpcRD77pCbupyXrI0ZmJA5Ak9aJV9RKOn3IjsghQfdP4EY8R9oWq8ApOp3Q5h bnXXSYPi7IGlYLGHvGFOBsIlqvIE02S7g1eRgIsTJ4PR+60JlTtpiq1Rs8WECoEq8WWYhGD MVFB1wl4X4qDgBNt4ez4i5eb+sibOS6zzu64RdvYKa/nMa4uJXf7MEsXQf2L2b2KV+pVXlV rUpSob+T26o99noRz5hgTLUi//lhC1ySxclol2A4whI6ZNXh9B9AuafHlB27hv93+jOKr54 FI6DV6eaeyyN03FicM8YcMjSmRe9Wb8uKohTjSYTfEdYxw0urz/cvOE9h7MA== Received: from zeus.lespinasse.org (zeus.lespinasse.org [IPv6:fd00::150:0]) by server.lespinasse.org (Postfix) with ESMTPS id A9075160360; Fri, 30 Apr 2021 12:52:33 -0700 (PDT) Received: by zeus.lespinasse.org (Postfix, from userid 1000) id 9B55D19F523; 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 24/29] mm: enable speculative fault handling through do_swap_page() Date: Fri, 30 Apr 2021 12:52:25 -0700 Message-Id: <20210430195232.30491-25-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 Change do_swap_page() to allow speculative fault execution to proceed. Signed-off-by: Michel Lespinasse --- mm/memory.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index a3708b4a616c..cf1a1c0196f0 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3357,11 +3357,6 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) vm_fault_t ret = 0; void *shadow = NULL; - if (vmf->flags & FAULT_FLAG_SPECULATIVE) { - pte_unmap(vmf->pte); - return VM_FAULT_RETRY; - } - #if defined(CONFIG_SMP) || defined(CONFIG_PREEMPTION) if (sizeof(pte_t) > sizeof(unsigned long)) { /* -- 2.20.1