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 2C22AC433F5 for ; Sun, 22 May 2022 00:39:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237857AbiEVAjl (ORCPT ); Sat, 21 May 2022 20:39:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238629AbiEVAjl (ORCPT ); Sat, 21 May 2022 20:39:41 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 410B646652 for ; Sat, 21 May 2022 17:39:40 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 02587B80ACC for ; Sun, 22 May 2022 00:39:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BC3D6C385A9; Sun, 22 May 2022 00:39:37 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.95) (envelope-from ) id 1nsZdA-000p8j-Ot; Sat, 21 May 2022 20:39:36 -0400 From: Steven Rostedt To: linux-trace-devel@vger.kernel.org Cc: "Steven Rostedt (Google)" Subject: [PATCH 0/4] trace-cmd: Fix up kvm time synchronization Date: Sat, 21 May 2022 20:39:31 -0400 Message-Id: <20220522003935.196466-1-rostedt@goodmis.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org From: "Steven Rostedt (Google)" Fix the kvm time synchronization so that it works with the agent proxy. That includes using "stat()" instead of just reading the content of the file to see if they exist. Have the kvm time sync functions test for a valid VM instead of just seeing if there are no failures, as no VMs or VCPUs would pass when it should not. Set the proper role for the agent proxy. Finally, mount the debugfs file system if it is not already mounted, otherwise it will say that KVM time synchronization is not supported when it actually is. Steven Rostedt (Google) (4): trace-cmd kvm timesync: Use stat() in kvm_scaling_check_vm_cpu() trace-cmd kvm timesync: Check for one valid VM trace-cmd record: Set the proper role when connected to a proxy trace-cmd: Mount debugfs if needed for KVM data Makefile | 2 +- lib/trace-cmd/trace-timesync-kvm.c | 99 ++++++++++++++++++++++-------- tracecmd/trace-record.c | 6 +- 3 files changed, 80 insertions(+), 27 deletions(-) -- 2.35.1