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Mon, 27 Jul 2026 10:25:54 -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 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> From: Luiz Capitulino In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: vCcYvrhrvo0u8HbppYbM2fykjx-9AaQjH5_0airm8cE_1785173155 X-Mimecast-Originator: redhat.com Content-Language: en-US, en-CA Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 19B154000A X-Stat-Signature: ixw43j4pca1qiy6yy67gorbs6kh86pkb X-HE-Tag: 1785173156-71146 X-HE-Meta: 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 4WcK8iS4 kuyAVr7N3JbBVGWayzzglvQTHfAaPf8NYnJniP+pcXgCAaTYa3YZx5XGyNI1LZdh/856cGNeV4kbJ4KOmE0SEsnceIr8981dlc6ppxeZmf1VMeeAGu7Pn8ZCugHNJKUJqn5BtxRGWhRyphb4vaRPrp10iFNBI3ZBmMWii3zaWiAPcbDV9iyVH3tQ0Rq7utu0gQQqlzllKWOY112mBLQCYjKIqs2WNSORvQe6INpPfreycndebhh3meSa6OPvmglaObPJ+SDt3l51pw/Vo+gMwAH/wl8CzuavkpVZIogKwT0x3h89XLSLYTkpAmTkqPJLGBFMbtrk+R4VEVuWBab/NNTySsUKmqFtZyydwF8Nh7UKcghtsPwkTz9wCdOQmP126NaGHQ1ap8x80f50= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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.