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Mon, 27 Jul 2026 10:25:56 -0700 (PDT) X-Received: by 2002:a05:6214:4984:b0:8f2:860f:4dec with SMTP id 6a1803df08f44-907ec768badmr108097326d6.15.1785173153995; Mon, 27 Jul 2026 10:25:53 -0700 (PDT) Received: from [192.168.2.110] ([70.49.81.60]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-907e851b717sm69356736d6.7.2026.07.27.10.25.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jul 2026 10:25:53 -0700 (PDT) Message-ID: <4fd6df44-fa50-4c3f-9d0e-8a785278f84f@redhat.com> Date: Mon, 27 Jul 2026 13:25:50 -0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 08/14] s390: move has_transparent_hugepage() out of THP guard To: "David Hildenbrand (Arm)" , Alexander Gordeev Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, baolin.wang@linux.alibaba.com, ziy@nvidia.com, lance.yang@linux.dev, corbet@lwn.net, tsbogend@alpha.franken.de, maddy@linux.ibm.com, mpe@ellerman.id.au, gerald.schaefer@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, x86@kernel.org, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, ira.weiny@intel.com, hughd@google.com, dave.hansen@linux.intel.com, djbw@kernel.org, vishal.l.verma@intel.com, dave.jiang@intel.com, akpm@linux-foundation.org, yintirui@huawei.com, ljs@kernel.org, dev.jain@arm.com References: <3ab69c6a9210d2764f714a093eff731dcb55ed14.1784856856.git.luizcap@redhat.com> Content-Language: en-US, en-CA From: Luiz Capitulino In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2026-07-27 13:14, David Hildenbrand (Arm) wrote: > On 7/27/26 19:06, Luiz Capitulino wrote: >> On 2026-07-27 11:41, Alexander Gordeev wrote: >>> On Thu, Jul 23, 2026 at 09:34:12PM -0400, Luiz Capitulino wrote: >>>> has_transparent_hugepage() definition is guarded by >>>> CONFIG_TRANSPARENT_HUGEPAGE, but there's a need to use it when >>> ^^^^^^^^^^^^^^ >>> What need? The commit message needs to be self-sufficient or >>> at least explain why that it is a pre-requisite. >> >> This series is adding a new API, based on has_transparent_hugepage(), to >> check if a CPU supports PMD-sized pages. The new API is orthogonal to >> THP and must work when CONFIG_TRANSPARENT_HUGEPAGE=n. > > Alexander is asking for that to be incorporated into the patch description :) Sure, I can do that.