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-rw-r--r--mm/internal.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/mm/internal.h b/mm/internal.h
index a4fa284f6bc2..9ba21100ebf3 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -92,6 +92,11 @@ extern int isolate_lru_page(struct page *page);
extern void putback_lru_page(struct page *page);
/*
+ * in mm/rmap.c:
+ */
+extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address);
+
+/*
* in mm/page_alloc.c
*/
extern void __free_pages_bootmem(struct page *page, unsigned int order);
@@ -130,7 +135,6 @@ struct compact_control {
int migratetype; /* MOVABLE, RECLAIMABLE etc */
struct zone *zone;
bool contended; /* True if a lock was contended */
- struct page **page; /* Page captured of requested size */
};
unsigned long
@@ -212,15 +216,18 @@ static inline void mlock_migrate_page(struct page *newpage, struct page *page)
{
if (TestClearPageMlocked(page)) {
unsigned long flags;
+ int nr_pages = hpage_nr_pages(page);
local_irq_save(flags);
- __dec_zone_page_state(page, NR_MLOCK);
+ __mod_zone_page_state(page_zone(page), NR_MLOCK, -nr_pages);
SetPageMlocked(newpage);
- __inc_zone_page_state(newpage, NR_MLOCK);
+ __mod_zone_page_state(page_zone(newpage), NR_MLOCK, nr_pages);
local_irq_restore(flags);
}
}
+extern pmd_t maybe_pmd_mkwrite(pmd_t pmd, struct vm_area_struct *vma);
+
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
extern unsigned long vma_address(struct page *page,
struct vm_area_struct *vma);