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b=lZgSpxke0mvUdvDGWrJuZQLWen71vjq/nK+jJUHf6APW+GhSGLI7pFx5NWfcTsjIg 1FBL8w+e1gyB3dujAEbON2e0pPOscCKqRIEqJgpS1yq0S9H0XBKtxUTKjBZ6jM25qj cztLOnR1xjdyGPZL4urYtaniCO+PNgEyLyAStr0GnGuAocclhFAVmNIsI0TRSufjC3 yeqjjfeXI1q43BgTcwyn9rW9FxKy2tX+PxebaFOnAZTAHL1STHXT6TG2O8gGiPcKVJ OzWy7TWHqVeUG1zoUKlqnQmO5Ww3P76sSrBmzISGCIei6CuexWBlDFkoNDzd7XjtZ1 IAFPdbVDdP+PQ== Message-ID: <45eaf367-331d-420c-b333-58c65c185a6f@kernel.org> Date: Fri, 2 Oct 2026 21:32:54 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 13/14] mm: replace thp_disabled_by_hw() with pgtable_has_pmd_leaves() To: Luiz Capitulino , linux-kernel@vger.kernel.org, linux-mm@kvack.org, baolin.wang@linux.alibaba.com, ziy@nvidia.com, lance.yang@linux.dev Cc: corbet@lwn.net, tsbogend@alpha.franken.de, maddy@linux.ibm.com, mpe@ellerman.id.au, agordeev@linux.ibm.com, 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, 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, dev.jain@arm.com, usama.arif@linux.dev References: <59028991ef703526a8e3be4c1f3875b042f328ae.1789695931.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: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 0B6C420005 X-Stat-Signature: 91u977r8pibowncjgxrwxj194ikmqqff X-Rspam-User: X-HE-Tag: 1790969584-136662 X-HE-Meta: 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 /sUWBSiH zTMGA79oVCw19dour5M55b1HLQLIYXrcz8LFqmTyxCoOU4LHNisNJF2aWQyt1JhhWyvBTTsiVZ1JqOklOC/frtlIB58Ykt2T00ryKaTfXwcVnZQ0l/FZcY4DYhR2qKsT8OTlGoBbNHg85WxgDx6L6JEmw8rRuhF+YYBwsiJTkAIywdL4UVbAmNHyjX+wkFhe7tJC5Oo9AFB52gM4Pekrjz4E12F8Zk64PfRPT4LMTPqPa+auZ/hBkNL3SeB5CxPVLmvvi18KVT6uqTw6AVquHmFBquRYWv7j6FrELVTdQkh7gF7qB3nI+Zgxm0kwNaVIHrbrhaEYhSZ8Blboqw6TKN6na+fWnOLHnXgyDeQd9rW3skiclRKJ9y7FmBZaoMShQ/LV9F59vViMYv8GI5xJGsuenxg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 9/18/26 03:45, Luiz Capitulino wrote: > Despite its name, thp_disabled_by_hw() just checks whether the > architecture supports PMD-sized pages. It returns true when > TRANSPARENT_HUGEPAGE_UNSUPPORTED is set in transparent_hugepage_flags, > this only occurs if the architecture implements arch_has_pmd_leaves() > and that function returns false. > > Since pgtable_has_pmd_leaves() provides the same semantics, use it > instead. > > Reviewed-by: Lance Yang > Reviewed-by: Baolin Wang > Acked-by: Zi Yan > Acked-by: David Hildenbrand (Arm) > Signed-off-by: Luiz Capitulino > --- Yes, that's a nice cleanup. -- Cheers, David