From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E29FC4ADDAD for ; Tue, 4 Aug 2026 17:43:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785865433; cv=none; b=GCj76/aPVqG02GK1Tkw58aaOjHd/UUCl6c3MCIEp6Wn2BXv19osdyG6t08ZzwV6MQ0l9XJKr5aJVVaint/Bta2X324F3FK8LR+bSK9J6JTDC3S10XUdA+w5RAa01rf9wWSVNViM6hrBz5cbBOKSHU0jCuL9WVtAuWLp5O+ayJrw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785865433; c=relaxed/simple; bh=6j6oFNDGCW22dPi/OuojAv6AgzWQQtmzdQGiZwBPIS4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:content-type; b=qTZ5o7aQf7x3C3cov2csXEZsVxVKYyvo/02XwdEajHyW9d7vwlJkQlZEA5sJRCCnzHwuvTMglSb07N7hxMvEY4rYnEPlDyftj+vHxLgaK77bEmSyMWcZ2esyn8Trq+oDaLxJ5iap5c9eqalsBnPg4gMeUgVx8y+BEXRRHf2cRBc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=KAfpRpQR; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="KAfpRpQR" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1785865430; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZyfMFThYySVUZ/UP9vZ/no6yT92LHdHbfgfkLQhYtrY=; b=KAfpRpQR4yMN+ne6jyWjk3iP1lusI52OZJQA+UdllsPUAZ0IXMOQ++Ls6KtBB+M+ZScC6Y HbAuNtCfcHYffZyXEaqAyR56qhefGuotCAyMsagr5eisbivR2+uIZzJvUeJhOzarUf6YWQ xH0SHlmJRUJzoI12QiJBDMFYGQF1uMQ= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-686-Hq0rdqakNAeJfEKXDx4n-g-1; Tue, 04 Aug 2026 13:43:37 -0400 X-MC-Unique: Hq0rdqakNAeJfEKXDx4n-g-1 X-Mimecast-MFC-AGG-ID: Hq0rdqakNAeJfEKXDx4n-g_1785865413 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 6EBF81800364; Tue, 4 Aug 2026 17:43:33 +0000 (UTC) Received: from vschneid-thinkpadt14sgen2i.remote.csb (unknown [10.44.34.30]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9ACEF195608E; Tue, 4 Aug 2026 17:43:29 +0000 (UTC) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Tomas Glozar , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Costa Shulyupin , Crystal Wood , John Kacur , Ivan Pravdin , Jonathan Corbet Subject: [PATCH v4 5/6] rtla: Unconditionally clean any pre-existing filters for user-provided events Date: Tue, 4 Aug 2026 19:42:37 +0200 Message-ID: <20260804174242.2288433-6-vschneid@redhat.com> In-Reply-To: <20260804174242.2288433-1-vschneid@redhat.com> References: <20260804174242.2288433-1-vschneid@redhat.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Mimecast-MFC-PROC-ID: I9C-Ovzf5OK1m7v2ywfl86kKJ9_P49vTG1VaPDxlrvs_1785865413 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true A later commit will apply a filter to events recorded to the trace output. To prevent any user confusion, remove pre-existing filters when enabling an event provided via the '-e' command line argument. Suggested-by: Tomas Glozar Signed-off-by: Valentin Schneider --- tools/tracing/rtla/src/trace.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/tracing/rtla/src/trace.c b/tools/tracing/rtla/src/trace.c index e407447773d04..f67f02cc92cdd 100644 --- a/tools/tracing/rtla/src/trace.c +++ b/tools/tracing/rtla/src/trace.c @@ -473,6 +473,10 @@ static int trace_event_enable_filter(struct trace_instance *instance, char filter[MAX_PATH]; int retval; + /* Unconditionally clean any pre-existing filters */ + tracefs_event_file_write(instance->inst, tevent->system, + tevent->event, "filter", "0"); + if (!tevent->filter) return 0; -- 2.55.0