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b=f7Bkg5utQljnDHBFVOvkdXOv86n/OfFwbNA/Th0W8iRELhHjfM8tEVistbMpHpchL KPiZ0CKVo8BfPa1cvE0nwZNdA5fegYghyTotPvMnZnSp1mfN6OC53drv20rTlk8dnm DS+dV7bmrqwjwS1Tu7eRSNBYC8AUUNpdzyQv6e18y+f1frUrJGp4jQmAA+HFpzRaoU pXX0hDi9F+EA8VBh+v9N5jfgIAdT5DDwS0s8oVJt0VVbCZOxNDH8/7Te9q6CrTyrzt +YVazGJMT7lUpxxi2/MwBfMc04ETlSURVmSQE15j62QVx9RBQNM1QUn8tA+rnt/2aE IZSBNJUTefHAA== Message-ID: Date: Mon, 27 Jul 2026 19:14:05 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 08/14] s390: move has_transparent_hugepage() out of THP guard To: Luiz Capitulino , 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: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 5D5A8100005 X-Stat-Signature: ukofg8fcnpnqgc8uzdgz4ijjyxk8wgcm X-Rspam-User: X-HE-Tag: 1785172456-351445 X-HE-Meta: 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 TOFNtfmt XEHwKU2plbPXxTCsyDjOE557FeNCV1rKm8wnSiUUUy6Xp0u4s3CSpHhwi1vkTfvew9zzZeBaWaDX7N2hQE/bnCE8j/7EHt3S3uWeMiDa4duJesVw/m4JiIhgxYtPnpbzIWAHDIdEtN2z+DcCz22FY7CS9S6VSbeabm8kLqu3lE0khKf/AEEWrCf+y3ylLllHS/QAdimqqYOTYRmJPa7aJC4ZB2oFLnKit5OJU1a46ywOhtZJaO2qGVgRd+pcIjjeaAaDnHMIwD1WxNAC0ipvUBOnsp0xnZUwc2cq7fcK+vXikjcziIfgcd6QyNHkqbS8/+pa4WCmBvA9ac/U= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 :) -- Cheers, David