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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 28 Feb 2019 16:51:43 -0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x1SGpg1I21758146 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 28 Feb 2019 16:51:42 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AA4FBB205F; Thu, 28 Feb 2019 16:51:42 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8CA1EB2066; Thu, 28 Feb 2019 16:51:42 +0000 (GMT) Received: from paulmck-ThinkPad-W541 (unknown [9.70.82.188]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 28 Feb 2019 16:51:42 +0000 (GMT) Received: by paulmck-ThinkPad-W541 (Postfix, from userid 1000) id 7BBEE16C42B8; Thu, 28 Feb 2019 08:51:43 -0800 (PST) Date: Thu, 28 Feb 2019 08:51:43 -0800 From: "Paul E. McKenney" To: Geert Uytterhoeven Cc: Jonathan Corbet , Josh Triplett , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH] doc: rcu: Suspicious RCU usage is a warning Reply-To: paulmck@linux.ibm.com References: <20190228105932.1274-1-geert+renesas@glider.be> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190228105932.1274-1-geert+renesas@glider.be> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-GCONF: 00 x-cbid: 19022816-0072-0000-0000-0000040199FD X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010680; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000281; SDB=6.01167659; UDB=6.00610029; IPR=6.00948272; MB=3.00025782; MTD=3.00000008; XFM=3.00000015; UTC=2019-02-28 16:51:46 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19022816-0073-0000-0000-00004B548AB8 Message-Id: <20190228165143.GU4072@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-02-28_09:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902280115 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 28, 2019 at 11:59:32AM +0100, Geert Uytterhoeven wrote: > Suspicious RCU usage messages are reported as warnings. > > Fixes: a5dd63efda3d07b5 ("lockdep: Use "WARNING" tag on lockdep splats") > Signed-off-by: Geert Uytterhoeven Reviewed-by: Paul E. McKenney > --- > And before that, they were printed as errors, which was also never > reflected in the documentation... > --- > Documentation/RCU/lockdep-splat.txt | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/Documentation/RCU/lockdep-splat.txt b/Documentation/RCU/lockdep-splat.txt > index 9423b633526d14df..9c015976b174123f 100644 > --- a/Documentation/RCU/lockdep-splat.txt > +++ b/Documentation/RCU/lockdep-splat.txt > @@ -14,9 +14,9 @@ being the real world and all that. > So let's look at an example RCU lockdep splat from 3.0-rc5, one that > has long since been fixed: > > -=============================== > -[ INFO: suspicious RCU usage. ] > -------------------------------- > +============================= > +WARNING: suspicious RCU usage > +----------------------------- > block/cfq-iosched.c:2776 suspicious rcu_dereference_protected() usage! > > other info that might help us debug this: > -- > 2.17.1 >