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Diffstat (limited to 'mm/rmap.c')
-rw-r--r--mm/rmap.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index 4644e10248f0..e375ce4bd93e 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1032,11 +1032,25 @@ void page_add_new_anon_rmap(struct page *page,
__mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
hpage_nr_pages(page));
__page_set_anon_rmap(page, vma, address, 1);
- if (!mlocked_vma_newpage(vma, page)) {
+
+ VM_BUG_ON_PAGE(PageLRU(page), page);
+ if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
SetPageActive(page);
lru_cache_add(page);
- } else
- add_page_to_unevictable_list(page);
+ return;
+ }
+
+ if (!TestSetPageMlocked(page)) {
+ /*
+ * We use the irq-unsafe __mod_zone_page_stat because this
+ * counter is not modified from interrupt context, and the pte
+ * lock is held(spinlock), which implies preemption disabled.
+ */
+ __mod_zone_page_state(page_zone(page), NR_MLOCK,
+ hpage_nr_pages(page));
+ count_vm_event(UNEVICTABLE_PGMLOCKED);
+ }
+ add_page_to_unevictable_list(page);
}
/**