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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 20 Feb 2019 18:28:22 -0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x1KISLjs19595292 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 Feb 2019 18:28:21 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 06F72B2066; Wed, 20 Feb 2019 18:28:21 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C9019B2064; Wed, 20 Feb 2019 18:28:20 +0000 (GMT) Received: from paulmck-ThinkPad-W541 (unknown [9.85.138.62]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 20 Feb 2019 18:28:20 +0000 (GMT) Received: by paulmck-ThinkPad-W541 (Postfix, from userid 1000) id AEF5F16C3B20; Wed, 20 Feb 2019 10:28:20 -0800 (PST) Date: Wed, 20 Feb 2019 10:28:20 -0800 From: "Paul E. McKenney" To: Joel Fernandes Cc: LKML , rcu@vger.kernel.org Subject: Re: [RFC 0/5] RCU fixes for rcu_assign_pointer usage Reply-To: paulmck@linux.ibm.com References: <20190220040827.136184-1-joel@joelfernandes.org> <20190220164242.GN11787@linux.ibm.com> <20190220180952.GB97771@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190220180952.GB97771@google.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-GCONF: 00 x-cbid: 19022018-0052-0000-0000-0000038D66EA X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010633; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000281; SDB=6.01163889; UDB=6.00607748; IPR=6.00944473; MB=3.00025670; MTD=3.00000008; XFM=3.00000015; UTC=2019-02-20 18:28:23 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19022018-0053-0000-0000-00005FE9A801 Message-Id: <20190220182820.GO11787@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-02-20_14:,, 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-1902200128 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 20, 2019 at 01:09:52PM -0500, Joel Fernandes wrote: > On Wed, Feb 20, 2019 at 08:42:43AM -0800, Paul E. McKenney wrote: > > On Tue, Feb 19, 2019 at 08:11:36PM -0800, Joel Fernandes wrote: > > > On Tue, Feb 19, 2019 at 8:08 PM Joel Fernandes (Google) > > > wrote: > > > > > > > > These patches fix various RCU API usage issues found due to sparse errors as a > > > > result of the recent check to add rcu_check_sparse() to rcu_assign_pointer(). > > > > > > > > This is very early RFC stage, and is only build tested. I am also only sending > > > > to the RCU group for initial review before sending to LKML. Thanks for any feedback! > > > > > > > > There are still more usages that cause errors such as rbtree which I am > > > > looking into. > > > > > > Looks like it got sent to LKML anyway, ;-) That's Ok since it is > > > prefixed as RFC. > > > > As is only right and proper. ;-) > > > > I don't see an immediate problem with them, but it would be good to get > > the relevant developers and maintainers on CC for the next version. I > > cannot claim to know that code very well. > > Definitely will CC them next time, sorry about that. I'll stop being so shy > but I have some scars that are still healing ;-) If you don't get at least a few scars, you aren't trying hard enough! ;-) Thanx, Paul