From nobody Thu Oct 2 09:22:04 2025 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 3CC99318138 for ; Fri, 19 Sep 2025 14:11:47 +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=1758291108; cv=none; b=jBgDbBjZx+hxJGSTNJ9hpdbDK67OKRiYIsmCOPi9cueX/u0XZjUdQWG7oDN1nYFMCVuXzGyQZZ27zcgxN7Z3U1tPujxn5w/GUkL4Bq98WeuG75CA4KZ4m9/fGfLx+xeEOZCt1CV9Hm08leNnujAM7lpAClWt/Ftm+KSKr8rTIAQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758291108; c=relaxed/simple; bh=WQNXShQgY7xogk082FyCjCHP+tYrX3Ygc3qimHccFXk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z7p1yPQO9fP3xNcp8XG5TrGiWufLWWCZY3MRq3QEmeIXZwhcOMuj9JqAzZA1wCt23S6SF4prbLOc5QHPNW3Dc+DqQW8XXpEgIFhqofnsQv9sK5F2c4eLCDawTjFRZPvCyOc+PUPJ2e2Ki3X8czIpd+DwyvhVarreKM8V2wKn8CI= 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=GdlHdDkX; 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="GdlHdDkX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1758291106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dfwybVwZAOX255a6SxX6GTdqkRsVNInDqN+J7H6EHfY=; b=GdlHdDkXFqGjUyW5CzqTnlytVQHJI4SPjm+pwVQHqUMlYX+3P2A29fHR09ib7TDwIksxLX F/bW/pjQLbXD+6q0PMiJibdu+9tdtxdx1XTKQ5yXDaXmV7o3JtMYD/y8mx2hsbU2RhsWPo YZSrxrf0uqSdkR1iV6kiOQkFTjoxxH8= Received: from mx-prod-mc-06.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-172-nSRWILYLPnmarjJvl0RQDA-1; Fri, 19 Sep 2025 10:11:42 -0400 X-MC-Unique: nSRWILYLPnmarjJvl0RQDA-1 X-Mimecast-MFC-AGG-ID: nSRWILYLPnmarjJvl0RQDA_1758291101 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (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-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8927C1800293; Fri, 19 Sep 2025 14:11:41 +0000 (UTC) Received: from gmonaco-thinkpadt14gen3.rmtit.csb (unknown [10.45.224.13]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 1F8C719560BB; Fri, 19 Sep 2025 14:11:36 +0000 (UTC) From: Gabriele Monaco To: linux-kernel@vger.kernel.org, Ingo Molnar , Peter Zijlstra Cc: Gabriele Monaco , Steven Rostedt , Nam Cao , Tomas Glozar , Juri Lelli , Clark Williams , John Kacur , linux-trace-kernel@vger.kernel.org Subject: [PATCH v2 16/20] sched: Export hidden tracepoints to modules Date: Fri, 19 Sep 2025 16:09:50 +0200 Message-ID: <20250919140954.104920-17-gmonaco@redhat.com> In-Reply-To: <20250919140954.104920-1-gmonaco@redhat.com> References: <20250919140954.104920-1-gmonaco@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Content-Type: text/plain; charset="utf-8" The tracepoints sched_entry, sched_exit and sched_set_need_resched are not exported to tracefs as trace events, this allows only kernel code to access them. Helper modules like [1] can be used to still have the tracepoints available to ftrace for debugging purposes, but they do rely on the tracepoints being exported. Export the 3 not exported tracepoints. Note that sched_set_state is already exported as the macro is called from modules. [1] - https://github.com/qais-yousef/sched_tp.git Signed-off-by: Gabriele Monaco --- kernel/sched/core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index ccba6fc3c3fe..334ff5b214d7 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -117,6 +117,9 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(sched_util_est_cfs_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(sched_util_est_se_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(sched_update_nr_running_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(sched_compute_energy_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_entry_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_exit_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_set_need_resched_tp); =20 DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); =20 --=20 2.51.0