From patchwork Tue Dec 15 03:14:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11973965 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=-15.7 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 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 8B516C4361B for ; Tue, 15 Dec 2020 03:14:05 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2A51D223E0 for ; Tue, 15 Dec 2020 03:14:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2A51D223E0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B57408D007B; Mon, 14 Dec 2020 22:14:04 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id AE28A8D001C; Mon, 14 Dec 2020 22:14:04 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9CF788D007B; Mon, 14 Dec 2020 22:14:04 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0134.hostedemail.com [216.40.44.134]) by kanga.kvack.org (Postfix) with ESMTP id 833D88D001C for ; Mon, 14 Dec 2020 22:14:04 -0500 (EST) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 51BD8180AD83E for ; Tue, 15 Dec 2020 03:14:04 +0000 (UTC) X-FDA: 77594047608.09.rest28_2708fa227420 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin09.hostedemail.com (Postfix) with ESMTP id 3B2F5180AD830 for ; Tue, 15 Dec 2020 03:14:04 +0000 (UTC) X-HE-Tag: rest28_2708fa227420 X-Filterd-Recvd-Size: 2268 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf49.hostedemail.com (Postfix) with ESMTP for ; Tue, 15 Dec 2020 03:14:03 +0000 (UTC) Date: Mon, 14 Dec 2020 19:14:02 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608002042; bh=ru6ryEcr6nrj8Qs4TUJItGo6IS8Sr9pM0CkAvcz0KJU=; h=From:To:Subject:In-Reply-To:From; b=qa8uabiQbRKpNWp0LA2jYIXJO2+dxI/A1MDleT61RbpoS5nmMykRQWzWWzTM8lvhE 2/nZi9TAoXJgVkXuIYMCynV5qqv9N7tvfaSyEBNqEar6Obe15EYv36jOrgvYfwIa50 okU4uwh+fetamEe1c4MbndZRe/FOYK/buWkj32MU= From: Andrew Morton To: aarcange@redhat.com, akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, peterx@redhat.com, rppt@linux.vnet.ibm.com, torvalds@linux-foundation.org Subject: [patch 182/200] userfaultfd/selftests: always dump something in modes Message-ID: <20201215031402.8uJvm2D5f%akpm@linux-foundation.org> In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Peter Xu Subject: userfaultfd/selftests: always dump something in modes Patch series "userfaultfd: selftests: Small fixes". Some very trivial fixes that I kept locally to userfaultfd selftest program. This patch (of 3): BOUNCE_POLL is a special bit that if cleared it means "READ" instead. Dump that too otherwise we'll see tests with empty modes. Link: https://lkml.kernel.org/r/20201208024709.7701-1-peterx@redhat.com Link: https://lkml.kernel.org/r/20201208024709.7701-2-peterx@redhat.com Signed-off-by: Peter Xu Cc: Andrea Arcangeli Cc: Mike Rapoport Signed-off-by: Andrew Morton --- tools/testing/selftests/vm/userfaultfd.c | 2 ++ 1 file changed, 2 insertions(+) --- a/tools/testing/selftests/vm/userfaultfd.c~userfaultfd-selftests-always-dump-something-in-modes +++ a/tools/testing/selftests/vm/userfaultfd.c @@ -1291,6 +1291,8 @@ static int userfaultfd_stress(void) printf(" ver"); if (bounces & BOUNCE_POLL) printf(" poll"); + else + printf(" read"); printf(", "); fflush(stdout);