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 Ph6hTfJe 54GhKL2XjQtYlOApKNJnEb5v1Cin0UyLndZInl8YJc5RZJXriY6HiTo2ffhox47+guLG7D97u4gfcDhJZ4WAtnQIxyQ6yGbKUq8DEF0MWdsRnIYY= 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: > + * @stop_at_none determines what we do when we encounter an empty PTE. If true, > + * we return that PTE. If false and @sz is less than the current PTE's size, > + * we make that PTE point to the next level down, going until @sz is the same > + * as our current PTE. [..] > +int hugetlb_hgm_walk(struct mm_struct *mm, struct vm_area_struct *vma, > + struct hugetlb_pte *hpte, unsigned long addr, > + unsigned long sz, bool stop_at_none) > +{ [..] > + while (hugetlb_pte_size(hpte) > sz && !ret) { > + pte = huge_ptep_get(hpte->ptep); > + if (!pte_present(pte)) { > + if (stop_at_none) > + return 0; > + if (unlikely(!huge_pte_none(pte))) > + return -EEXIST; If 'stop_at_none' means settling down on the just encountered empty PTE, should the above two "if" clauses switch order? I thought Peter has raised this question too, but I'm not seeing a response. Regards, -jane > + } else if (hugetlb_pte_present_leaf(hpte, pte)) > + return 0; > + ret = hugetlb_walk_step(mm, hpte, addr, sz); > + } > + > + return ret; > +} > +