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Sun, 08 Jun 2025 00:35:53 -0700 (PDT) From: Yafang Shao To: akpm@linux-foundation.org, david@redhat.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, hannes@cmpxchg.org, usamaarif642@gmail.com, gutierrez.asier@huawei-partners.com, willy@infradead.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org Cc: bpf@vger.kernel.org, linux-mm@kvack.org, Yafang Shao Subject: [RFC PATCH v3 1/5] mm, thp: use __thp_vma_allowable_orders() in khugepaged_enter_vma() Date: Sun, 8 Jun 2025 15:35:12 +0800 Message-Id: <20250608073516.22415-2-laoar.shao@gmail.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20250608073516.22415-1-laoar.shao@gmail.com> References: <20250608073516.22415-1-laoar.shao@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 59BB2140017 X-Stat-Signature: 4utgskg4ro9pxuzxe7ihd51xeyr43kqz X-Rspam-User: X-HE-Tag: 1749368155-867533 X-HE-Meta: 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 odb9FRUg 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The order has already been validated in hugepage_pmd_enabled(), so there's no need to recheck it in thp_vma_allowable_orders(). Signed-off-by: Yafang Shao --- mm/khugepaged.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 15203ea7d007..79e208999ddb 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -474,8 +474,8 @@ void khugepaged_enter_vma(struct vm_area_struct *vma, { if (!test_bit(MMF_VM_HUGEPAGE, &vma->vm_mm->flags) && hugepage_pmd_enabled()) { - if (thp_vma_allowable_order(vma, vm_flags, TVA_ENFORCE_SYSFS, - PMD_ORDER)) + if (__thp_vma_allowable_orders(vma, vm_flags, TVA_ENFORCE_SYSFS, + BIT(PMD_ORDER))) __khugepaged_enter(vma->vm_mm); } } -- 2.43.5