From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37455C10F14 for ; Thu, 3 Oct 2019 19:04:50 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D35FF20873 for ; Thu, 3 Oct 2019 19:04:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D35FF20873 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1E31A6B0005; Thu, 3 Oct 2019 15:04:49 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 194C86B0006; Thu, 3 Oct 2019 15:04:49 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 084B26B0007; Thu, 3 Oct 2019 15:04:49 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0006.hostedemail.com [216.40.44.6]) by kanga.kvack.org (Postfix) with ESMTP id DC7CB6B0005 for ; Thu, 3 Oct 2019 15:04:48 -0400 (EDT) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id 7B983824CA3B for ; Thu, 3 Oct 2019 19:04:48 +0000 (UTC) X-FDA: 76003400256.30.map79_4701068ee6f4b X-HE-Tag: map79_4701068ee6f4b X-Filterd-Recvd-Size: 7327 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf03.hostedemail.com (Postfix) with ESMTP for ; Thu, 3 Oct 2019 19:04:47 +0000 (UTC) Received: from pps.filterd (m0127361.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x93IqL1A004018; Thu, 3 Oct 2019 15:04:20 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 2vdm1756yc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 03 Oct 2019 15:04:19 -0400 Received: from m0127361.ppops.net (m0127361.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.27/8.16.0.27) with SMTP id x93IqgZA004949; Thu, 3 Oct 2019 15:04:16 -0400 Received: from ppma04dal.us.ibm.com (7a.29.35a9.ip4.static.sl-reverse.com [169.53.41.122]) by mx0a-001b2d01.pphosted.com with ESMTP id 2vdm1756x3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 03 Oct 2019 15:04:16 -0400 Received: from pps.filterd (ppma04dal.us.ibm.com [127.0.0.1]) by ppma04dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id x93ItvaJ020338; Thu, 3 Oct 2019 19:04:15 GMT Received: from b01cxnp23033.gho.pok.ibm.com (b01cxnp23033.gho.pok.ibm.com [9.57.198.28]) by ppma04dal.us.ibm.com with ESMTP id 2v9y58j8kw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 03 Oct 2019 19:04:14 +0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x93J4Dkf54591808 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 3 Oct 2019 19:04:13 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CDC21112061; Thu, 3 Oct 2019 19:04:13 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CB474112064; Thu, 3 Oct 2019 19:04:06 +0000 (GMT) Received: from leobras.br.ibm.com (unknown [9.18.235.190]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 3 Oct 2019 19:04:06 +0000 (GMT) Message-ID: <08c43176fcf46c768d474f7d3620e07f3f71b140.camel@linux.ibm.com> Subject: Re: [PATCH v5 10/11] mm/Kconfig: Adds config option to track lockless pagetable walks From: Leonardo Bras To: Qian Cai Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Arnd Bergmann , "Aneesh Kumar K.V" , Christophe Leroy , Nicholas Piggin , Andrew Morton , Mahesh Salgaonkar , Reza Arbab , Santosh Sivaraj , Balbir Singh , Thomas Gleixner , Greg Kroah-Hartman , Mike Rapoport , Allison Randal , Jason Gunthorpe , Dan Williams , Vlastimil Babka , Christoph Lameter , Logan Gunthorpe , Andrey Ryabinin , Alexey Dobriyan , Souptick Joarder , Mathieu Desnoyers , Ralph Campbell , Jesper Dangaard Brouer , Jann Horn , Davidlohr Bueso , "Peter Zijlstra (Intel)" , Ingo Molnar , Christian Brauner , Michal Hocko , Elena Reshetova , Roman Gushchin , Andrea Arcangeli , Al Viro , "Dmitry V. Levin" , =?ISO-8859-1?Q?J=E9r=F4me?= Glisse , Song Liu , Bartlomiej Zolnierkiewicz , Ira Weiny , "Kirill A. Shutemov" , John Hubbard , Keith Busch Date: Thu, 03 Oct 2019 16:04:02 -0300 In-Reply-To: <88228CE0-81B2-4F2F-8C1D-F3376DB25A16@lca.pw> References: <20191003013325.2614-11-leonardo@linux.ibm.com> <88228CE0-81B2-4F2F-8C1D-F3376DB25A16@lca.pw> Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-6JwD3nS1I5bp6jdQjZJI" User-Agent: Evolution 3.30.5 (3.30.5-1.fc29) MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-10-03_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=27 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910030155 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: --=-6JwD3nS1I5bp6jdQjZJI Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2019-10-02 at 22:08 -0400, Qian Cai wrote: > Can=E2=80=99t this name and all those new *lockless* function names be sh= orter?=20 > There are many functions name with *_locked, so how about dropping=20 > lockless at all, i.e., PAGE_TABLE_WALK_TRACKING blah blah? Thanks for the feedback! Well, in this case it only tracks the 'lockless pagetable walks'. In this approach, the 'locked pagetable walks' don't need to be tracked. --=-6JwD3nS1I5bp6jdQjZJI Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEMdeUgIzgjf6YmUyOlQYWtz9SttQFAl2WRiIACgkQlQYWtz9S ttTLPQ/5AadIHB7M8l0r2DhjP46ynmXH5IxgHEY7CjSTQZzcRJIAM9AMhlH9Ps+z fjqBvZ0ZSOJAJQPbMP4nRi3kTdAdg7tyLtJj78BgcKpM+2Y3iKlq3O2HgqvqCZdH zkuVaWtPdlYICGLA12Y39UaiYxnNEAwvm+W7vb9nk/fL6T8aTTZFZAZOT1SVQZty a6YhEcj/10usw6lATrcmS3j4z8RV0aLP5L4gFQeexekfPZQu08Jaq8B3tWmC9nTc eimFeMtGUaAybx9HJb//9GYYkSGGGGi8AkE1EpiIbQkoK88n0nPenGCcaBvJfD+V w2hHUAmtfEOCYgDO4pHiQRCxl0sI5fuVJNPpAFJc317szxCW/MGhg+CxxrPjfDtA S0Y0Iu9DZdXrHbBP7sfLuXv05bhL4yR7vS3/T6J+5CdzBSjnfMpYvL61Qj8vXb1R g703mw25Ukm4FXbxTNoVvalohYjPM80J6IOiFpMr+MWjuZSzBpS8ooH8SKO3hoMd wMwRtiJZD0vwLlj859memG7yhiufyG/TU6/lzAVydl9JZdb7xjhlSExGyutxCFCo 2Bnsd5rOYsT2pQNPnWuHm0r+MvPW7wYnm3qy7GoYhNsxB1hAhvNkFy+EXCzmcDKE tTVoRqlRZXwvVjtmTVbmV7NzchhZicDLcJRPS38dfIm2PezXsno= =6lYM -----END PGP SIGNATURE----- --=-6JwD3nS1I5bp6jdQjZJI--