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b=i+zS7V+NWrt9FcmmtNbilvGk8AMgrsDPvEmr8qyID+GbT+wn8dKLGm16QlZPm1pQD CKW8GGJzBm926RYbyIJNe8AoOjuVfbkfEPlD7A/NEc6FSqj7IU9vHV3ok3gxgU0c1u pIjm42i8CB4j1ze7Zo0RVVBKXLazV/rV9e5a3W1WUHWJYbHRGQkVyvW4vD0TEN7BjO Fn6wXKf4VNKhqvSv4lCS3zpywrOK3PZBrEAwSx8fuYfMnH06VEUVr0nWbdab+p8Z/0 +gG5thxvIRcSkF432btKAabqBmB8URlAqma9xQ/lsXRq52b4ty9B4wJsNIkDg/V1cs yXCcpJ8YSxAFg== Message-ID: <388b396c-2dca-492d-8873-c9c672ac30f2@kernel.org> Date: Fri, 2 Oct 2026 21:15:15 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 04/14] drivers: dax: use 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: <700b622814a2b294083f9066631f655cf61c3070.1789695931.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: rspam08 X-Rspamd-Queue-Id: 8C341180004 X-Rspam-User: X-Stat-Signature: 57mxxot46sb3jxatoedxnbw1cuzti3rg X-HE-Tag: 1790968527-12566 X-HE-Meta: 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 vFKvrBAM sS3lf52Dh2ewjDathN4IFOrIHcP4XE9aCz+sW4/MumXD0zVQ9SgU6qsmVDv0ds7x8tqlaCvs5VoZXWdhruoLe9fCI8U/6zf6pIULStZVK3SG0lTiQXWdncAJVPS9J83B4DSZiFQfR95/rgbO31i+nXD7VXZ1B6DAJnV/sTFTUm2RKDbKnM1rlTD8AZdJth1ESgy7A+6+ngIn5g+wVDAdr9jIzIjlzk1NNltxH5gkmNdZgm6pRyKPu3KFjJlgrH6gWNLpOsq6S0AJC35QuFQmBfh/XJdxngyFjlc2X/LSJAaeAIQwyjulthcSHNg3ZiKKnRQjLu8I0GZ7r0IS+LOT/8VIvwYjwtwSMgXj1 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: > dax_align_valid() uses has_transparent_hugepage() to check if PMD-sized > pages are supported, use pgtable_has_pmd_leaves() instead. > > Acked-by: David Hildenbrand (Red Hat) > Signed-off-by: Luiz Capitulino > --- > drivers/dax/dax-private.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h > index 607a53a91f58..18a6295aa766 100644 > --- a/drivers/dax/dax-private.h > +++ b/drivers/dax/dax-private.h > @@ -121,7 +121,7 @@ static inline bool dax_align_valid(unsigned long align) > { > if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)) > return true; > - if (align == PMD_SIZE && has_transparent_hugepage()) > + if (align == PMD_SIZE && pgtable_has_pmd_leaves()) > return true; > if (align == PAGE_SIZE) > return true; The main part why we don't see any change is that dax_align_valid() is wrapped in the #ifdef CONFIG_TRANSPARENT_HUGEPAGE today. Might we worth spelling that out in the patch description. -- Cheers, David