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G8+7Q9WmoOVvClxcbTf0LAKHcaEB5GOj80X4wk5pfSz0zDa8ByTIP+moZ/uPHjEdlyR5UYiLGIpdgNgpN0qP50qHMT7t5wg5vcA+tMESUIz7eLbcu4hDJuUbzHkcgtHrVJJZhTaNwTUSE7JTqE7MxzXY6jztALmJ1KbxefDCDDnTGHYNUzZgnt+KyPQa9xXDsnbafQ8dQfFyV7eTD5r6GsPUAO0A3JX+0Z1b689lULmz/YM7oJIFrQgvLt/9UtUMC3tlVzD5IfdFfgfPfmuL7WTUy6ASpqPqxRGcMy5Oii+Mop/o/whpVC3dtI0pl3GGJx3m9iqPzEfwz08kl17Jo0JkthgUr/Fr/+B8NDA30HCxccpdd5YtNHmEOTCuT2e6Qwm21/tiSHuIZNIYa72qT7k8mFsUXgIs4p+5kJLtUO/cuac4dOaNmjKIEPjRNdO7VNo3k+OlBkZLYvyY= 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: On 12/18/2025 9:24 PM, Zi Yan wrote: > On 18 Dec 2025, at 4:17, David Hildenbrand (Red Hat) wrote: > >> On 12/18/25 06:40, Garg, Shivank wrote: >>> >>> >>> On 12/16/2025 9:08 PM, Zi Yan wrote: >>>> On 16 Dec 2025, at 6:11, Shivank Garg wrote: >>>> >>> >>>> >>>>> int collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr, >>>>> bool install_pmd) >>>>> { >>>> >>>> And here. >>> Since this function is declared in khugepaged.h, I need to >>> move the enum definition to that header. I see two options for handling >>> the CONFIG_TRANSPARENT_HUGEPAGE check: >>> >>> 1. Define enum OUTSIDE the ifdef: This allows the static inline stub >>> to also return enum scan_result, keeping the API consistent. >>> 2. Define enum INSIDE the ifdef: The enum is hidden when THP is disabled, >>> forcing the stub to return int 0 instead. >>> >>> The only external caller (uprobes.c) of collapse_pte_mapped_thp currently >>> ignores the return value. >> >> Probably best to not expose that enum (especially when nobody cares ...) and instead expose a new void function for uprobe purposes. >> >> Maybe >> >> void collapse_pte_mapped_thp(...) >> { >> try_collapse_pte_mapped_thp(); >> } >> >> Maybe something like that? > > Sounds good to me. Thanks, this makes sense to me. I'll do this. Best Regards, Shivank