From patchwork Wed Jul 25 02:42:07 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thiago Jung Bauermann X-Patchwork-Id: 10543413 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 798DB14BC for ; Wed, 25 Jul 2018 02:44:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 69C3629A1A for ; Wed, 25 Jul 2018 02:44:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5E4C929A28; Wed, 25 Jul 2018 02:44:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0438029A1A for ; Wed, 25 Jul 2018 02:44:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728073AbeGYDxu (ORCPT ); Tue, 24 Jul 2018 23:53:50 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:55686 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727353AbeGYDxu (ORCPT ); Tue, 24 Jul 2018 23:53:50 -0400 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w6P2hYVM112084 for ; Tue, 24 Jul 2018 22:44:21 -0400 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 2keatc3xah-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 24 Jul 2018 22:44:21 -0400 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 24 Jul 2018 20:44:20 -0600 Received: from b03cxnp07029.gho.boulder.ibm.com (9.17.130.16) by e34.co.us.ibm.com (192.168.1.134) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 24 Jul 2018 20:44:18 -0600 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w6P2iHpu11862414 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 24 Jul 2018 19:44:17 -0700 Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 89D9578060; Tue, 24 Jul 2018 20:44:17 -0600 (MDT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A2E6C7805E; Tue, 24 Jul 2018 20:44:15 -0600 (MDT) Received: from morokweng.localdomain.com (unknown [9.85.159.138]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 24 Jul 2018 20:44:15 -0600 (MDT) From: Thiago Jung Bauermann To: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Shuah Khan , Andrea Arcangeli , Mike Rapoport , Prakash Sangappa , Thiago Jung Bauermann Subject: [PATCH 1/3] userfaultfd: selftest: Fix checking of userfaultfd_open() result Date: Tue, 24 Jul 2018 23:42:07 -0300 X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180725024209.32586-1-bauerman@linux.ibm.com> References: <20180725024209.32586-1-bauerman@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18072502-0016-0000-0000-0000090CFFBA X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009424; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01065718; UDB=6.00547467; IPR=6.00843577; MB=3.00022308; MTD=3.00000008; XFM=3.00000015; UTC=2018-07-25 02:44:19 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18072502-0017-0000-0000-00003FC04DED Message-Id: <20180725024209.32586-2-bauerman@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-07-24_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807250027 Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If the userfaultfd test is run on a kernel with CONFIG_USERFAULTFD=n, it will report that the system call is not available yet go ahead and continue anyway: # ./userfaultfd anon 30 1 nr_pages: 480, nr_pages_per_cpu: 120 userfaultfd syscall not available in this kernel bounces: 0, mode:, register failure This is because userfaultfd_open() returns 0 on success and 1 on error but all callers assume that it returns < 0 on error. Since the convention of the test as a whole is the one used by userfault_open(), fix its callers instead. Now the test behaves correctly: # ./userfaultfd anon 30 1 nr_pages: 480, nr_pages_per_cpu: 120 userfaultfd syscall not available in this kernel Signed-off-by: Thiago Jung Bauermann --- tools/testing/selftests/vm/userfaultfd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index 7b8171e3128a..e4099afe7557 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -859,7 +859,7 @@ static int userfaultfd_zeropage_test(void) if (uffd_test_ops->release_pages(area_dst)) return 1; - if (userfaultfd_open(0) < 0) + if (userfaultfd_open(0)) return 1; uffdio_register.range.start = (unsigned long) area_dst; uffdio_register.range.len = nr_pages * page_size; @@ -902,7 +902,7 @@ static int userfaultfd_events_test(void) features = UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE; - if (userfaultfd_open(features) < 0) + if (userfaultfd_open(features)) return 1; fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); @@ -961,7 +961,7 @@ static int userfaultfd_sig_test(void) return 1; features = UFFD_FEATURE_EVENT_FORK|UFFD_FEATURE_SIGBUS; - if (userfaultfd_open(features) < 0) + if (userfaultfd_open(features)) return 1; fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); @@ -1027,7 +1027,7 @@ static int userfaultfd_stress(void) if (!area_dst) return 1; - if (userfaultfd_open(0) < 0) + if (userfaultfd_open(0)) return 1; count_verify = malloc(nr_pages * sizeof(unsigned long long)); From patchwork Wed Jul 25 02:42:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thiago Jung Bauermann X-Patchwork-Id: 10543415 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 49EAF1822 for ; Wed, 25 Jul 2018 02:44:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 391DC29A1A for ; Wed, 25 Jul 2018 02:44:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2DB4C29A28; Wed, 25 Jul 2018 02:44:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0C7E929A1A for ; Wed, 25 Jul 2018 02:44:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388553AbeGYDxy (ORCPT ); Tue, 24 Jul 2018 23:53:54 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:39422 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727646AbeGYDxy (ORCPT ); Tue, 24 Jul 2018 23:53:54 -0400 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w6P2i8gR118601 for ; Tue, 24 Jul 2018 22:44:25 -0400 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ke9kny0hb-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 24 Jul 2018 22:44:25 -0400 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 24 Jul 2018 20:44:24 -0600 Received: from b03cxnp08027.gho.boulder.ibm.com (9.17.130.19) by e34.co.us.ibm.com (192.168.1.134) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 24 Jul 2018 20:44:22 -0600 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w6P2iL5Y57999452 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 24 Jul 2018 19:44:21 -0700 Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 251BD78060; Tue, 24 Jul 2018 20:44:21 -0600 (MDT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 303E27805E; Tue, 24 Jul 2018 20:44:19 -0600 (MDT) Received: from morokweng.localdomain.com (unknown [9.85.159.138]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 24 Jul 2018 20:44:18 -0600 (MDT) From: Thiago Jung Bauermann To: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Shuah Khan , Andrea Arcangeli , Mike Rapoport , Prakash Sangappa , Thiago Jung Bauermann Subject: [PATCH 2/3] userfaultfd: selftest: Skip test if a feature isn't supported Date: Tue, 24 Jul 2018 23:42:08 -0300 X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180725024209.32586-1-bauerman@linux.ibm.com> References: <20180725024209.32586-1-bauerman@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18072502-0016-0000-0000-0000090CFFBB X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009424; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01065718; UDB=6.00547467; IPR=6.00843577; MB=3.00022308; MTD=3.00000008; XFM=3.00000015; UTC=2018-07-25 02:44:23 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18072502-0017-0000-0000-00003FC04DF3 Message-Id: <20180725024209.32586-3-bauerman@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-07-24_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807250027 Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If userfaultfd runs on a system that doesn't support some feature it is trying to test, it currently ends with error code 1 which indicates test failure: # ./userfaultfd anon 10 10 nr_pages: 160, nr_pages_per_cpu: 80 bounces: 9, mode: rnd poll, userfaults: 7 59 bounces: 8, mode: poll, userfaults: 0 0 bounces: 7, mode: rnd racing ver, userfaults: 45 2 bounces: 6, mode: racing ver, userfaults: 3 1 bounces: 5, mode: rnd ver, userfaults: 55 32 bounces: 4, mode: ver, userfaults: 69 0 bounces: 3, mode: rnd racing, userfaults: 1 1 bounces: 2, mode: racing, userfaults: 65 0 bounces: 1, mode: rnd, userfaults: 44 1 bounces: 0, mode:, userfaults: 3 2 testing UFFDIO_ZEROPAGE: done. testing signal delivery: UFFDIO_API # echo $? 1 Make the testcase return KSFT_SKIP instead, which is more accurate since it is not a real test failure: # ./userfaultfd anon 10 10 nr_pages: 160, nr_pages_per_cpu: 80 bounces: 9, mode: rnd poll, userfaults: 3 0 bounces: 8, mode: poll, userfaults: 6 1 bounces: 7, mode: rnd racing ver, userfaults: 3 1 bounces: 6, mode: racing ver, userfaults: 2 1 bounces: 5, mode: rnd ver, userfaults: 2 1 bounces: 4, mode: ver, userfaults: 3 47 bounces: 3, mode: rnd racing, userfaults: 38 0 bounces: 2, mode: racing, userfaults: 4 61 bounces: 1, mode: rnd, userfaults: 16 6 bounces: 0, mode:, userfaults: 55 25 testing UFFDIO_ZEROPAGE: done. testing signal delivery: UFFDIO_API: Invalid argument # echo $? 4 While at it, also improve the error message of the ioctl(UFFDIO_API) call. Signed-off-by: Thiago Jung Bauermann --- tools/testing/selftests/vm/userfaultfd.c | 41 ++++++++++++++++++++++---------- 1 file changed, 29 insertions(+), 12 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index e4099afe7557..bc9ec38fbc34 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -645,8 +645,11 @@ static int userfaultfd_open(int features) uffdio_api.api = UFFD_API; uffdio_api.features = features; if (ioctl(uffd, UFFDIO_API, &uffdio_api)) { - fprintf(stderr, "UFFDIO_API\n"); - return 1; + int errnum = errno; + + perror("UFFDIO_API"); + + return errnum == EINVAL ? KSFT_SKIP : 1; } if (uffdio_api.api != UFFD_API) { fprintf(stderr, "UFFDIO_API error %Lu\n", uffdio_api.api); @@ -852,6 +855,7 @@ static int userfaultfd_zeropage_test(void) { struct uffdio_register uffdio_register; unsigned long expected_ioctls; + int err; printf("testing UFFDIO_ZEROPAGE: "); fflush(stdout); @@ -859,8 +863,10 @@ static int userfaultfd_zeropage_test(void) if (uffd_test_ops->release_pages(area_dst)) return 1; - if (userfaultfd_open(0)) - return 1; + err = userfaultfd_open(0); + if (err) + return err; + uffdio_register.range.start = (unsigned long) area_dst; uffdio_register.range.len = nr_pages * page_size; uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; @@ -902,8 +908,9 @@ static int userfaultfd_events_test(void) features = UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE; - if (userfaultfd_open(features)) - return 1; + err = userfaultfd_open(features); + if (err) + return err; fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); uffdio_register.range.start = (unsigned long) area_dst; @@ -961,8 +968,9 @@ static int userfaultfd_sig_test(void) return 1; features = UFFD_FEATURE_EVENT_FORK|UFFD_FEATURE_SIGBUS; - if (userfaultfd_open(features)) - return 1; + err = userfaultfd_open(features); + if (err) + return err; fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); uffdio_register.range.start = (unsigned long) area_dst; @@ -1027,8 +1035,9 @@ static int userfaultfd_stress(void) if (!area_dst) return 1; - if (userfaultfd_open(0)) - return 1; + err = userfaultfd_open(0); + if (err) + return err; count_verify = malloc(nr_pages * sizeof(unsigned long long)); if (!count_verify) { @@ -1199,8 +1208,16 @@ static int userfaultfd_stress(void) return err; close(uffd); - return userfaultfd_zeropage_test() || userfaultfd_sig_test() - || userfaultfd_events_test(); + + err = userfaultfd_zeropage_test(); + if (err) + return err; + + err = userfaultfd_sig_test(); + if (err) + return err; + + return userfaultfd_events_test(); } /* From patchwork Wed Jul 25 02:42:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thiago Jung Bauermann X-Patchwork-Id: 10543417 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 62E4A1822 for ; Wed, 25 Jul 2018 02:44:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5434F29A1A for ; Wed, 25 Jul 2018 02:44:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4825529A28; Wed, 25 Jul 2018 02:44:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E9F6029A1A for ; Wed, 25 Jul 2018 02:44:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727353AbeGYDx5 (ORCPT ); Tue, 24 Jul 2018 23:53:57 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:47584 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388555AbeGYDx5 (ORCPT ); Tue, 24 Jul 2018 23:53:57 -0400 Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w6P2hWoh134219 for ; Tue, 24 Jul 2018 22:44:28 -0400 Received: from e35.co.us.ibm.com (e35.co.us.ibm.com [32.97.110.153]) by mx0a-001b2d01.pphosted.com with ESMTP id 2kedbaegf7-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 24 Jul 2018 22:44:28 -0400 Received: from localhost by e35.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 24 Jul 2018 20:44:27 -0600 Received: from b03cxnp08028.gho.boulder.ibm.com (9.17.130.20) by e35.co.us.ibm.com (192.168.1.135) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 24 Jul 2018 20:44:25 -0600 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp08028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w6P2iOfO8782230 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 24 Jul 2018 19:44:24 -0700 Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 86BEF7805F; Tue, 24 Jul 2018 20:44:24 -0600 (MDT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8CA0C7805E; Tue, 24 Jul 2018 20:44:22 -0600 (MDT) Received: from morokweng.localdomain.com (unknown [9.85.159.138]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 24 Jul 2018 20:44:22 -0600 (MDT) From: Thiago Jung Bauermann To: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Shuah Khan , Andrea Arcangeli , Mike Rapoport , Prakash Sangappa , Thiago Jung Bauermann Subject: [PATCH 3/3] userfaultfd: selftest: Report XFAIL if shmem doesn't support zeropage Date: Tue, 24 Jul 2018 23:42:09 -0300 X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180725024209.32586-1-bauerman@linux.ibm.com> References: <20180725024209.32586-1-bauerman@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18072502-0012-0000-0000-00001690D8E5 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009424; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01065718; UDB=6.00547467; IPR=6.00843576; MB=3.00022308; MTD=3.00000008; XFM=3.00000015; UTC=2018-07-25 02:44:27 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18072502-0013-0000-0000-000053CAC391 Message-Id: <20180725024209.32586-4-bauerman@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-07-24_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807250027 Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If userfaultfd runs on a system that doesn't support UFFDIO_ZEROPAGE for shared memory, it currently ends with error code 1 which indicates test failure: # ./userfaultfd shmem 10 10 nr_pages: 160, nr_pages_per_cpu: 80 bounces: 9, mode: rnd poll, unexpected missing ioctl for anon memory # echo $? 1 This is a real failure, but expected so signal that to the test harness: # ./userfaultfd shmem 10 10 nr_pages: 160, nr_pages_per_cpu: 80 bounces: 9, mode: rnd poll, UFFDIO_ZEROPAGE unsupported in shmem VMAs # echo $? 2 Signed-off-by: Thiago Jung Bauermann --- tools/testing/selftests/vm/userfaultfd.c | 8 ++++++++ 1 file changed, 8 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index bc9ec38fbc34..686fe96f617f 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -1115,6 +1115,14 @@ static int userfaultfd_stress(void) expected_ioctls = uffd_test_ops->expected_ioctls; if ((uffdio_register.ioctls & expected_ioctls) != expected_ioctls) { + if (test_type == TEST_SHMEM && + (uffdio_register.ioctls & expected_ioctls) == + UFFD_API_RANGE_IOCTLS_BASIC) { + fprintf(stderr, + "UFFDIO_ZEROPAGE unsupported in shmem VMAs\n"); + return KSFT_XFAIL; + } + fprintf(stderr, "unexpected missing ioctl for anon memory\n"); return 1;