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SubjectRe: [PATCH v5 02/12] mm: migrate: support non-lru movable page migration
On (05/09/16 11:20), Minchan Kim wrote:
[..]
> +++ b/include/linux/migrate.h
> @@ -32,11 +32,16 @@ extern char *migrate_reason_names[MR_TYPES];
>
> #ifdef CONFIG_MIGRATION
>
> +extern int PageMovable(struct page *page);
> +extern void __SetPageMovable(struct page *page, struct address_space *mapping);
> +extern void __ClearPageMovable(struct page *page);
> extern void putback_movable_pages(struct list_head *l);
> extern int migrate_page(struct address_space *,
> struct page *, struct page *, enum migrate_mode);
> extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
> unsigned long private, enum migrate_mode mode, int reason);
> +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode);
> +extern void putback_movable_page(struct page *page);
>
> extern int migrate_prep(void);
> extern int migrate_prep_local(void);

given that some of Movable users can be built as modules, shouldn't
at least some of those symbols be exported via EXPORT_SYMBOL?

-ss

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