From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x227zcJDdYGtZCrmIDiE5osyTR3iUIFK58B5IiZTO4CMOZvmoBZcocHfdKNTH+4GXUrjDkefm ARC-Seal: i=1; a=rsa-sha256; t=1517866750; cv=none; d=google.com; s=arc-20160816; b=fcgeqHZwssfluC7Pj3IA1O3MzMESLAE0xKQRq+B6XT3/b1b+gsUpQ59OC7h11nVRgR iHv8h7y+5YwO+LYo9NPGHr7E5OGkpDfP5YDaE6tPN02srWaH8dScNT0L4Us0ORJRLlfc 8B/63oKlzdyoTcPEsPnqONpq2T2Y64tfzyJu9tzF/0mT2c0ze3xdT4f1PZk2fo4tN3Ub jdOFUDCFy+gBoZ0BS0UaSgqwhkaBS8BPads4WOuAs/pVGU6sK9aDSZ07bDQTqytaUJXu Mp8Ruuh/424hn00O5p7PnWmba/nIEfd9xsXIrA7/JA2eKTSKw+4qlgUXiYYknM5LldKn W0hQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=precedence:content-disposition:content-transfer-encoding :mime-version:robot-unsubscribe:robot-id:git-commit-id:subject:to :references:in-reply-to:reply-to:cc:message-id:from:sender:date :arc-authentication-results; bh=mjDA52wx2offJieY3+O61FRyXHK1gXdDKs4Az/B9oDQ=; b=v/sOKJmKELE+OZeuWJE3jFjjBsrMKMs6k/KRCxdThfpniSfjmlXPw1rsWxkVUl05wu NXZ43x6/PnJV6aQyHxjNAwHpO+1PhJ4oy4FyDOG0rGUJakqviTCm0/05eO+a6SCYJ7H5 PBvjVItphRA4RWl2LTWP5kkcaLVjgeorHhs8+aTXltDxkpLKOpTvy3EInIVWwfsfN5pz dEKvQhRF2DK2AD9FR9/jyOCqd/i8E51KDeWDO6Q9ASpU+w/AxsjGTzIOh9O/CRtsauOH ncRyuKrhfnXWzjECvqL5f5R9jBLhKy0q0l61tTZu4Dco8pxmvAq6bnxEMd9vGDwY16ml AP0w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of tipbot@zytor.com designates 65.50.211.136 as permitted sender) smtp.mailfrom=tipbot@zytor.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of tipbot@zytor.com designates 65.50.211.136 as permitted sender) smtp.mailfrom=tipbot@zytor.com Date: Mon, 5 Feb 2018 13:30:27 -0800 Sender: tip tree robot From: tip-bot for Mathieu Desnoyers Message-ID: Cc: alice.ferrazzi@gmail.com, paulmck@linux.vnet.ibm.com, paul.elder@pitt.edu, torvalds@linux-foundation.org, gregkh@linuxfoundation.org, peterz@infradead.org, avi@scylladb.com, parri.andrea@gmail.com, benh@kernel.crashing.org, mathieu.desnoyers@efficios.com, linux@armlinux.org.uk, shuahkh@osg.samsung.com, tglx@linutronix.de, boqun.feng@gmail.com, luto@kernel.org, mingo@kernel.org, ghackmann@google.com, maged.michael@gmail.com, linux-kernel@vger.kernel.org, ahh@google.com, will.deacon@arm.com, sehr@google.com, stern@rowland.harvard.edu, paulus@samba.org, davejwatson@fb.com, mpe@ellerman.id.au, hpa@zytor.com Reply-To: mingo@kernel.org, luto@kernel.org, boqun.feng@gmail.com, ghackmann@google.com, maged.michael@gmail.com, will.deacon@arm.com, ahh@google.com, linux-kernel@vger.kernel.org, paulus@samba.org, davejwatson@fb.com, stern@rowland.harvard.edu, sehr@google.com, mpe@ellerman.id.au, hpa@zytor.com, alice.ferrazzi@gmail.com, paulmck@linux.vnet.ibm.com, gregkh@linuxfoundation.org, torvalds@linux-foundation.org, peterz@infradead.org, paul.elder@pitt.edu, avi@scylladb.com, parri.andrea@gmail.com, mathieu.desnoyers@efficios.com, benh@kernel.crashing.org, tglx@linutronix.de, shuahkh@osg.samsung.com, linux@armlinux.org.uk In-Reply-To: <20180129202020.8515-12-mathieu.desnoyers@efficios.com> References: <20180129202020.8515-12-mathieu.desnoyers@efficios.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:sched/urgent] membarrier/selftest: Test private expedited sync core command Git-Commit-ID: 460e8c3340a265d1d70fa1ee05c42afd68b2efa0 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1591598645969427640?= X-GMAIL-MSGID: =?utf-8?q?1591598645969427640?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Commit-ID: 460e8c3340a265d1d70fa1ee05c42afd68b2efa0 Gitweb: https://git.kernel.org/tip/460e8c3340a265d1d70fa1ee05c42afd68b2efa0 Author: Mathieu Desnoyers AuthorDate: Mon, 29 Jan 2018 15:20:20 -0500 Committer: Ingo Molnar CommitDate: Mon, 5 Feb 2018 21:35:38 +0100 membarrier/selftest: Test private expedited sync core command Test the new MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE and MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE commands. Signed-off-by: Mathieu Desnoyers Acked-by: Thomas Gleixner Acked-by: Shuah Khan Acked-by: Peter Zijlstra (Intel) Cc: Alan Stern Cc: Alice Ferrazzi Cc: Andrea Parri Cc: Andrew Hunter Cc: Andy Lutomirski Cc: Avi Kivity Cc: Benjamin Herrenschmidt Cc: Boqun Feng Cc: Dave Watson Cc: David Sehr Cc: Greg Hackmann Cc: Greg Kroah-Hartman Cc: Linus Torvalds Cc: Maged Michael Cc: Michael Ellerman Cc: Paul E. McKenney Cc: Paul Elder Cc: Paul Mackerras Cc: Russell King Cc: Will Deacon Cc: linux-api@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-kselftest@vger.kernel.org Link: http://lkml.kernel.org/r/20180129202020.8515-12-mathieu.desnoyers@efficios.com Signed-off-by: Ingo Molnar --- .../testing/selftests/membarrier/membarrier_test.c | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/tools/testing/selftests/membarrier/membarrier_test.c b/tools/testing/selftests/membarrier/membarrier_test.c index eec39a0..22bffd5 100644 --- a/tools/testing/selftests/membarrier/membarrier_test.c +++ b/tools/testing/selftests/membarrier/membarrier_test.c @@ -132,6 +132,63 @@ static int test_membarrier_private_expedited_success(void) return 0; } +static int test_membarrier_private_expedited_sync_core_fail(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE not registered failure"; + + if (sys_membarrier(cmd, flags) != -1) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should fail, but passed\n", + test_name, flags); + } + if (errno != EPERM) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n", + test_name, flags, EPERM, strerror(EPERM), + errno, strerror(errno)); + } + + ksft_test_result_pass( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + return 0; +} + +static int test_membarrier_register_private_expedited_sync_core_success(void) +{ + int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", + test_name, flags); + return 0; +} + +static int test_membarrier_private_expedited_sync_core_success(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", + test_name, flags); + return 0; +} + static int test_membarrier_register_global_expedited_success(void) { int cmd = MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED, flags = 0; @@ -188,6 +245,22 @@ static int test_membarrier(void) status = test_membarrier_private_expedited_success(); if (status) return status; + status = sys_membarrier(MEMBARRIER_CMD_QUERY, 0); + if (status < 0) { + ksft_test_result_fail("sys_membarrier() failed\n"); + return status; + } + if (status & MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE) { + status = test_membarrier_private_expedited_sync_core_fail(); + if (status) + return status; + status = test_membarrier_register_private_expedited_sync_core_success(); + if (status) + return status; + status = test_membarrier_private_expedited_sync_core_success(); + if (status) + return status; + } /* * It is valid to send a global membarrier from a non-registered * process.