diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mmzone.h | 2 | ||||
| -rw-r--r-- | include/linux/page-isolation.h | 19 |
2 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 73b64a38b984..4f4c8c26fa9d 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -57,7 +57,9 @@ enum { */ MIGRATE_CMA, #endif +#ifdef CONFIG_MEMORY_ISOLATION MIGRATE_ISOLATE, /* can't allocate from here */ +#endif MIGRATE_TYPES }; diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h index a92061e08d48..3fff8e774067 100644 --- a/include/linux/page-isolation.h +++ b/include/linux/page-isolation.h @@ -1,6 +1,25 @@ #ifndef __LINUX_PAGEISOLATION_H #define __LINUX_PAGEISOLATION_H +#ifdef CONFIG_MEMORY_ISOLATION +static inline bool is_migrate_isolate_page(struct page *page) +{ + return get_pageblock_migratetype(page) == MIGRATE_ISOLATE; +} +static inline bool is_migrate_isolate(int migratetype) +{ + return migratetype == MIGRATE_ISOLATE; +} +#else +static inline bool is_migrate_isolate_page(struct page *page) +{ + return false; +} +static inline bool is_migrate_isolate(int migratetype) +{ + return false; +} +#endif bool has_unmovable_pages(struct zone *zone, struct page *page, int count, bool skip_hwpoisoned_pages); |