From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754091AbeDWDC6 (ORCPT ); Sun, 22 Apr 2018 23:02:58 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:52266 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753937AbeDWDCl (ORCPT ); Sun, 22 Apr 2018 23:02:41 -0400 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel.opensrc@gmail.com, torvalds@linux-foundation.org, npiggin@gmail.com, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 21/21] rcu: Update list of rcu_future_grace_period() trace events Date: Sun, 22 Apr 2018 20:03:44 -0700 X-Mailer: git-send-email 2.5.2 In-Reply-To: <20180423030258.GA23370@linux.vnet.ibm.com> References: <20180423030258.GA23370@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18042303-0044-0000-0000-0000040974B7 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008903; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000257; SDB=6.01021898; UDB=6.00521542; IPR=6.00801133; MB=3.00020719; MTD=3.00000008; XFM=3.00000015; UTC=2018-04-23 03:02:38 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18042303-0045-0000-0000-0000083B7DB4 Message-Id: <1524452624-27589-21-git-send-email-paulmck@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-04-23_01:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1804230032 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Reworking grace-period initiation and funnel locking added new rcu_future_grace_period() trace events, so this commit updates the rcu_future_grace_period() trace event's header comment accordingly. Signed-off-by: Paul E. McKenney --- include/trace/events/rcu.h | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h index d8c33298c153..5936aac357ab 100644 --- a/include/trace/events/rcu.h +++ b/include/trace/events/rcu.h @@ -84,20 +84,21 @@ TRACE_EVENT(rcu_grace_period, ); /* - * Tracepoint for future grace-period events, including those for no-callbacks - * CPUs. The caller should pull the data from the rcu_node structure, - * other than rcuname, which comes from the rcu_state structure, and event, - * which is one of the following: + * Tracepoint for future grace-period events. The caller should pull + * the data from the rcu_node structure, other than rcuname, which comes + * from the rcu_state structure, and event, which is one of the following: * - * "Startleaf": Request a nocb grace period based on leaf-node data. + * "Startleaf": Request a grace period based on leaf-node data. + * "Prestarted": Someone beat us to the request * "Startedleaf": Leaf-node start proved sufficient. * "Startedleafroot": Leaf-node start proved sufficient after checking root. * "Startedroot": Requested a nocb grace period based on root-node data. + * "NoGPkthread": The RCU grace-period kthread has not yet started. * "StartWait": Start waiting for the requested grace period. * "ResumeWait": Resume waiting after signal. * "EndWait": Complete wait. * "Cleanup": Clean up rcu_node structure after previous GP. - * "CleanupMore": Clean up, and another no-CB GP is needed. + * "CleanupMore": Clean up, and another GP is needed. */ TRACE_EVENT(rcu_future_grace_period, -- 2.5.2