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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84943FA3740 for ; Mon, 24 Oct 2022 11:40:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230522AbiJXLk5 (ORCPT ); Mon, 24 Oct 2022 07:40:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231214AbiJXLih (ORCPT ); Mon, 24 Oct 2022 07:38:37 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5F50696FD; Mon, 24 Oct 2022 04:37:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666611466; x=1698147466; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=tOCK3h3jPTF9+zsBKkGPw4b8sRWy9dxpSKt7joVm7RQ=; b=f9kylC3xIZwJfYktCAHkH6xe+FHSr026mckP+weduDPuf8m/0GfyqAGm sdlP4LGQXBT6SGvWtajTRgkoeog5qeHCJtHGkWY5icGygJ/mJdGQujNC/ 9jNsRAr547JggRqYGDwaUPLoOtfEWMM4IVpkdvhZqn09gSlkzoROPPrRm 59klknAifdEnu3PYomagMYaFTYXKxIQjIRUWkJ8CgLm6ZRISnGuD5Enkm B5LApfNoaEJghPfKIQ/ib4IczjVaq8nqh73iyJYUBtzR1+9poyxTaXiJM nNqOIz2wxdLqEYoXqbFL9QSQDflm92b646UeRS2bFs5lDqNT856JXzZpY g==; X-IronPort-AV: E=McAfee;i="6500,9779,10509"; a="369462454" X-IronPort-AV: E=Sophos;i="5.95,209,1661842800"; d="scan'208";a="369462454" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2022 04:35:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10509"; a="773785009" X-IronPort-AV: E=Sophos;i="5.95,209,1661842800"; d="scan'208";a="773785009" Received: from tdx-lm.sh.intel.com ([10.239.53.27]) by fmsmga001.fm.intel.com with ESMTP; 24 Oct 2022 04:35:17 -0700 From: Wei Wang To: seanjc@google.com, pbonzini@redhat.com Cc: dmatlack@google.com, vipinsh@google.com, ajones@ventanamicro.com, eric.auger@redhat.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Wei Wang Subject: [PATCH v1 12/18] KVM: selftests/rseq_test: name the migration thread and some cleanup Date: Mon, 24 Oct 2022 19:34:39 +0800 Message-Id: <20221024113445.1022147-13-wei.w.wang@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20221024113445.1022147-1-wei.w.wang@intel.com> References: <20221024113445.1022147-1-wei.w.wang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Use the helper function to create the migration thread with name. Change the global defination of migration_thread to local, as it's not referenced anywhere outside main(). Aslo, check the return value from pthread_join and assert on errors. Signed-off-by: Wei Wang --- tools/testing/selftests/kvm/rseq_test.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c index 6f88da7e60be..c124f00ca4fe 100644 --- a/tools/testing/selftests/kvm/rseq_test.c +++ b/tools/testing/selftests/kvm/rseq_test.c @@ -2,7 +2,6 @@ #define _GNU_SOURCE /* for program_invocation_short_name */ #include #include -#include #include #include #include @@ -28,7 +27,6 @@ */ #define NR_TASK_MIGRATIONS 100000 -static pthread_t migration_thread; static cpu_set_t possible_mask; static int min_cpu, max_cpu; static bool done; @@ -204,6 +202,7 @@ int main(int argc, char *argv[]) struct kvm_vm *vm; struct kvm_vcpu *vcpu; u32 cpu, rseq_cpu; + pthread_t migration_thread; /* Tell stdout not to buffer its content */ setbuf(stdout, NULL); @@ -226,8 +225,8 @@ int main(int argc, char *argv[]) vm = vm_create_with_one_vcpu(&vcpu, guest_code); ucall_init(vm, NULL); - pthread_create(&migration_thread, NULL, migration_worker, - (void *)(unsigned long)syscall(SYS_gettid)); + pthread_create_with_name(&migration_thread, migration_worker, + (void *)(unsigned long)syscall(SYS_gettid), "mig-thread"); for (i = 0; !done; i++) { vcpu_run(vcpu); @@ -272,7 +271,8 @@ int main(int argc, char *argv[]) TEST_ASSERT(i > (NR_TASK_MIGRATIONS / 2), "Only performed %d KVM_RUNs, task stalled too much?\n", i); - pthread_join(migration_thread, NULL); + r = pthread_join(migration_thread, NULL); + TEST_ASSERT(r == 0, "failed to join the migration thread"); kvm_vm_free(vm); -- 2.27.0