From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Raspl Subject: [PATCH v2 03/11] tools/kvm_stat: fix missing field update after filter change Date: Mon, 11 Dec 2017 12:25:21 +0100 Message-ID: <20171211112529.33706-4-raspl@linux.vnet.ibm.com> References: <20171211112529.33706-1-raspl@linux.vnet.ibm.com> Cc: pbonzini@redhat.com, rkrcmar@redhat.com, frankja@linux.vnet.ibm.com To: kvm@vger.kernel.org Return-path: Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:45870 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751999AbdLKLZj (ORCPT ); Mon, 11 Dec 2017 06:25:39 -0500 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vBBBPYYl094732 for ; Mon, 11 Dec 2017 06:25:39 -0500 Received: from e06smtp10.uk.ibm.com (e06smtp10.uk.ibm.com [195.75.94.106]) by mx0a-001b2d01.pphosted.com with ESMTP id 2esnhdb644-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 11 Dec 2017 06:25:38 -0500 Received: from localhost by e06smtp10.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 11 Dec 2017 11:25:36 -0000 In-Reply-To: <20171211112529.33706-1-raspl@linux.vnet.ibm.com> Sender: kvm-owner@vger.kernel.org List-ID: From: Stefan Raspl When updating the fields filter, tracepoint events of fields previously not visible were not enabled, as TracepointProvider.update_fields() updated the member variable directly instead of using the setter, which triggers the event enable/disable. To reproduce, run 'kvm_stat -f kvm_exit', press 'c' to remove the filter, and notice that no add'l fields that do not match the regex 'kvm_exit' will appear. This issue was introduced by commit c469117df059 ("tools/kvm_stat: simplify initializers"). Signed-off-by: Stefan Raspl --- tools/kvm/kvm_stat/kvm_stat | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 6347ad5d0d35..f133755fdde2 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -549,8 +549,8 @@ class TracepointProvider(Provider): def update_fields(self, fields_filter): """Refresh fields, applying fields_filter""" - self._fields = [field for field in self.get_available_fields() - if self.is_field_wanted(fields_filter, field)] + self.fields = [field for field in self.get_available_fields() + if self.is_field_wanted(fields_filter, field)] @staticmethod def get_online_cpus(): -- 2.13.5