diff options
Diffstat (limited to 'mm/internal.h')
| -rw-r--r-- | mm/internal.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/internal.h b/mm/internal.h index a96da5b0029d..a25e359a4039 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -200,6 +200,8 @@ isolate_freepages_range(struct compact_control *cc, unsigned long isolate_migratepages_range(struct compact_control *cc, unsigned long low_pfn, unsigned long end_pfn); +int find_suitable_fallback(struct free_area *area, unsigned int order, + int migratetype, bool only_stealable, bool *can_steal); #endif @@ -222,13 +224,13 @@ static inline unsigned long page_order(struct page *page) * PageBuddy() should be checked first by the caller to minimize race window, * and invalid values must be handled gracefully. * - * ACCESS_ONCE is used so that if the caller assigns the result into a local + * READ_ONCE is used so that if the caller assigns the result into a local * variable and e.g. tests it for valid range before using, the compiler cannot * decide to remove the variable and inline the page_private(page) multiple * times, potentially observing different values in the tests and the actual * use of the result. */ -#define page_order_unsafe(page) ACCESS_ONCE(page_private(page)) +#define page_order_unsafe(page) READ_ONCE(page_private(page)) static inline bool is_cow_mapping(vm_flags_t flags) { @@ -240,7 +242,7 @@ void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma, struct vm_area_struct *prev, struct rb_node *rb_parent); #ifdef CONFIG_MMU -extern long __mlock_vma_pages_range(struct vm_area_struct *vma, +extern long populate_vma_page_range(struct vm_area_struct *vma, unsigned long start, unsigned long end, int *nonblocking); extern void munlock_vma_pages_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); |