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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 A3F7CC43331 for ; Mon, 11 Nov 2019 18:48:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7B5A920674 for ; Mon, 11 Nov 2019 18:48:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573498085; bh=magJWIIhJAta17rvJqjf/rR7U9jUmsF0pHTM+xeaEfk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=nOV5xkN8KaSHBL5ZJ9SQvuk1Y9kDTnUuhk3lUBmFa/N6SLiebTHnZSnJMrg9oRKPU HT0ELwYrltSbBjJi2eXvZ0ALgC7h1bQGSmcpN/nDAjbAx4ObiSd3BoucWygBKGrh4G x1IYFqK4/4FSsXa7Uu2UpcwQFlXPt77spbvr+0LA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730208AbfKKSsD (ORCPT ); Mon, 11 Nov 2019 13:48:03 -0500 Received: from mail.kernel.org ([198.145.29.99]:41004 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728788AbfKKSsB (ORCPT ); Mon, 11 Nov 2019 13:48:01 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B3E73204FD; Mon, 11 Nov 2019 18:47:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573498080; bh=magJWIIhJAta17rvJqjf/rR7U9jUmsF0pHTM+xeaEfk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kkFEEJHkBe/C2HFRdxX6VxD+rlGgJtR80RGkwIXD9M012Cuk6SdlFpUuCeku0ycPy JdXlJUlIrulaG/1vcVJeIpr9J6XK31cz+IM2a0juXdiMWJe2+P0EXsPAcUGOhdsGfK YESk58RHUNrPPzw0DZgqR+JXeTbnnRG/3O5KOdsw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jakub Kicinski , Simon Horman , "David S. Miller" Subject: [PATCH 5.3 017/193] selftests/tls: add test for concurrent recv and send Date: Mon, 11 Nov 2019 19:26:39 +0100 Message-Id: <20191111181501.432098820@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191111181459.850623879@linuxfoundation.org> References: <20191111181459.850623879@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jakub Kicinski [ Upstream commit 41098af59d8d753aa8d3bb4310cc4ecb61fc82c7 ] Add a test which spawns 16 threads and performs concurrent send and recv calls on the same socket. Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/net/tls.c | 108 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 108 insertions(+) --- a/tools/testing/selftests/net/tls.c +++ b/tools/testing/selftests/net/tls.c @@ -898,6 +898,114 @@ TEST_F(tls, nonblocking) } } +static void +test_mutliproc(struct __test_metadata *_metadata, struct _test_data_tls *self, + bool sendpg, unsigned int n_readers, unsigned int n_writers) +{ + const unsigned int n_children = n_readers + n_writers; + const size_t data = 6 * 1000 * 1000; + const size_t file_sz = data / 100; + size_t read_bias, write_bias; + int i, fd, child_id; + char buf[file_sz]; + pid_t pid; + + /* Only allow multiples for simplicity */ + ASSERT_EQ(!(n_readers % n_writers) || !(n_writers % n_readers), true); + read_bias = n_writers / n_readers ?: 1; + write_bias = n_readers / n_writers ?: 1; + + /* prep a file to send */ + fd = open("/tmp/", O_TMPFILE | O_RDWR, 0600); + ASSERT_GE(fd, 0); + + memset(buf, 0xac, file_sz); + ASSERT_EQ(write(fd, buf, file_sz), file_sz); + + /* spawn children */ + for (child_id = 0; child_id < n_children; child_id++) { + pid = fork(); + ASSERT_NE(pid, -1); + if (!pid) + break; + } + + /* parent waits for all children */ + if (pid) { + for (i = 0; i < n_children; i++) { + int status; + + wait(&status); + EXPECT_EQ(status, 0); + } + + return; + } + + /* Split threads for reading and writing */ + if (child_id < n_readers) { + size_t left = data * read_bias; + char rb[8001]; + + while (left) { + int res; + + res = recv(self->cfd, rb, + left > sizeof(rb) ? sizeof(rb) : left, 0); + + EXPECT_GE(res, 0); + left -= res; + } + } else { + size_t left = data * write_bias; + + while (left) { + int res; + + ASSERT_EQ(lseek(fd, 0, SEEK_SET), 0); + if (sendpg) + res = sendfile(self->fd, fd, NULL, + left > file_sz ? file_sz : left); + else + res = send(self->fd, buf, + left > file_sz ? file_sz : left, 0); + + EXPECT_GE(res, 0); + left -= res; + } + } +} + +TEST_F(tls, mutliproc_even) +{ + test_mutliproc(_metadata, self, false, 6, 6); +} + +TEST_F(tls, mutliproc_readers) +{ + test_mutliproc(_metadata, self, false, 4, 12); +} + +TEST_F(tls, mutliproc_writers) +{ + test_mutliproc(_metadata, self, false, 10, 2); +} + +TEST_F(tls, mutliproc_sendpage_even) +{ + test_mutliproc(_metadata, self, true, 6, 6); +} + +TEST_F(tls, mutliproc_sendpage_readers) +{ + test_mutliproc(_metadata, self, true, 4, 12); +} + +TEST_F(tls, mutliproc_sendpage_writers) +{ + test_mutliproc(_metadata, self, true, 10, 2); +} + TEST_F(tls, control_msg) { if (self->notls)