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=-2.6 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, 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 AB91CC6778F for ; Wed, 25 Jul 2018 15:48:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 64687204EC for ; Wed, 25 Jul 2018 15:48:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=8bytes.org header.i=@8bytes.org header.b="bhTQVlM7" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 64687204EC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728825AbeGYRAg (ORCPT ); Wed, 25 Jul 2018 13:00:36 -0400 Received: from 8bytes.org ([81.169.241.247]:40116 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728360AbeGYRAf (ORCPT ); Wed, 25 Jul 2018 13:00:35 -0400 Received: by theia.8bytes.org (Postfix, from userid 1000) id 714D92DC; Wed, 25 Jul 2018 17:48:19 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=8bytes.org; s=mail-1; t=1532533699; bh=L9/OWQWqSPUqG2lLweD54IOtxRyq7LaGRIrwnwmSXjs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bhTQVlM7n5PlqM8ICWuJsAX/iarutHZxGEb6ajynyNliPRZM546gp8odEVXF76p5E iQmtbc/KAP4ldPX0SDik8KeBdDEX8JyMLI4zlvpiRVzsm8dmnIUFf2lD9rSAjZ1gva yBJKUg87BBP4inpcs3z7DwXxkaaKxTxQ3TuSCqssthzeAve1I5DR6VlLFSXxHLEXJr X1hSrG9oP863uGSYgGg4MGM9IyWNK/8zhYdCFmhKjh6Ea/I/IZeCshQC/8i0vofpfp M7QoNdCUb4hy6v5pSvnaTVFBIkIQa4HI6WHvFIPZrqX/JVZsv1+tit6sRHoC4KI8SG k05f+OsPHAjig== From: Joerg Roedel To: Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" Cc: x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Linus Torvalds , Andy Lutomirski , Dave Hansen , Josh Poimboeuf , Juergen Gross , Peter Zijlstra , Borislav Petkov , Jiri Kosina , Boris Ostrovsky , Brian Gerst , David Laight , Denys Vlasenko , Eduardo Valentin , Greg KH , Will Deacon , aliguori@amazon.com, daniel.gruss@iaik.tugraz.at, hughd@google.com, keescook@google.com, Andrea Arcangeli , Waiman Long , Pavel Machek , "David H . Gutteridge" , jroedel@suse.de, Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , joro@8bytes.org Subject: [PATCH 1/3] x86/mm: Remove in_nmi() warning from vmalloc_fault() Date: Wed, 25 Jul 2018 17:48:01 +0200 Message-Id: <1532533683-5988-2-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1532533683-5988-1-git-send-email-joro@8bytes.org> References: <1532533683-5988-1-git-send-email-joro@8bytes.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel It is perfectly okay to take page-faults, especially on the vmalloc area while executing an NMI handler. Remove the warning. Signed-off-by: Joerg Roedel --- arch/x86/mm/fault.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 2aafa6a..db1c042 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -317,8 +317,6 @@ static noinline int vmalloc_fault(unsigned long address) if (!(address >= VMALLOC_START && address < VMALLOC_END)) return -1; - WARN_ON_ONCE(in_nmi()); - /* * Synchronize this task's top level page-table * with the 'reference' page table. -- 2.7.4