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Sun, 29 Dec 2024 14:49:45 GMT Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0457D5804E; Sun, 29 Dec 2024 14:49:45 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7AA4C5803F; Sun, 29 Dec 2024 14:49:37 +0000 (GMT) Received: from [9.171.1.162] (unknown [9.171.1.162]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Sun, 29 Dec 2024 14:49:37 +0000 (GMT) Message-ID: Date: Sun, 29 Dec 2024 20:19:35 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC v2 PATCH 2/5] memory: move conditionally defined enums use inside ifdef tags To: Gregory Price Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, nehagholkar@meta.com, abhishekd@meta.com, kernel-team@meta.com, david@redhat.com, nphamcs@gmail.com, akpm@linux-foundation.org, hannes@cmpxchg.org, kbusch@meta.com, ying.huang@linux.alibaba.com References: <20241210213744.2968-1-gourry@gourry.net> <20241210213744.2968-3-gourry@gourry.net> <0dd42f11-2c2d-4fab-a115-2b0c8c69952d@linux.ibm.com> Content-Language: en-US From: Donet Tom In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: d3e_xt10yArlPLHGO8pj9JJQEteTsB-5 X-Proofpoint-GUID: joIcTg25mHpFaD9E1r8jzJR9gjZYDYRR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 malwarescore=0 adultscore=0 priorityscore=1501 clxscore=1015 mlxlogscore=889 spamscore=0 mlxscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412290129 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: C28D518000C X-Stat-Signature: s8kdjugcfxm9zbb3in6ojrih5jigb6sa X-Rspam-User: X-HE-Tag: 1735483758-487590 X-HE-Meta: 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 fBlOGm2H U2XLgO6hl0z+0qRPU9doxvFpvNW2RLRkG+PpX0/smlYwksv07zgYu0w2E5O6GmnjtiHEfdA7MkZ/exBSL1uOPZ5iJlQExPe3y9st2iXOeaXa0W7fMGeSjySshiLPIV7ZMorA9CIRNAoJM/KO2TDWaFwtGQY51EBmhXhuRvXqTX7QqKPqeEw/VAbiitI36U106wFaUq/5kyvxTF4MnhyabfCsvHLtFDmi13WZqeU7HTnKdPka4rTJ/5RLWlHB7uG12aDt+DD1Z+E3QdKPbbHCpNGLqsmleFu2+GSLe 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: List-Subscribe: List-Unsubscribe: On 12/27/24 21:12, Gregory Price wrote: > On Fri, Dec 27, 2024 at 04:04:05PM +0530, Donet Tom wrote: >> On 12/11/24 03:07, Gregory Price wrote: >>> NUMA_HINT_FAULTS and NUMA_HINT_FAULTS_LOCAL are only defined if >>> CONFIG_NUMA_BALANCING is defined, but are used outside the tags in >>> numa_migrate_check(). Fix this. >>> >>> TNF_SHARED is only used if CONFIG_NUMA_BALANCING is enabled, so >>> moving this line inside the ifdef is also safe - despite use of TNF_* >>> elsewhere in the function. TNF_* are not conditionally defined. >>> >>> Signed-off-by: Gregory Price >>> --- >>> mm/memory.c | 4 ++-- >>> 1 file changed, 2 insertions(+), 2 deletions(-) >>> >>> diff --git a/mm/memory.c b/mm/memory.c >>> index 83fd35c034d7..6ad7616918c4 100644 >>> --- a/mm/memory.c >>> +++ b/mm/memory.c >>> @@ -5573,14 +5573,14 @@ int numa_migrate_check(struct folio *folio, struct vm_fault *vmf, >>> /* Record the current PID acceesing VMA */ >>> vma_set_access_pid_bit(vma); >>> - count_vm_numa_event(NUMA_HINT_FAULTS); >>> #ifdef CONFIG_NUMA_BALANCING >> IIUC,|do_huge_pmd_numa_page|() and|do_numa_page()| are executed only if >> |CONFIG_NUMA_BALANCING| is enabled (|pte_protnone()| and|pmd_protnone()| >> return 0 if|CONFIG_NUMA_BALANCING| is disabled). >> >> Given this, do we still need the|#ifdef|? >> > the NUMA_HINT_FAULTS stuff is only defined if CONFIG_NUMA_BALANCING is > built. > > The ifdefs around some of this code is a bit inconsistent, it's > probably worth a separate line to try to clean it up. Sure. Thank you. > > ~Gregory