* lruvec->lru_lock. Sometimes used as a generic list
* by the page owner.
*/
- struct list_head lru;
+ union {
+ struct list_head lru;
+ /* Or, for the Unevictable "LRU list" slot */
+ struct {
+ /* Always even, to negate PageTail */
+ void *__filler;
+ /* Count page's or folio's mlocks */
+ unsigned int mlock_count;
+ };
+ };
/* See page-flags.h for PAGE_MAPPING_FLAGS */
struct address_space *mapping;
pgoff_t index; /* Our offset within mapping. */
unsigned char compound_dtor;
unsigned char compound_order;
atomic_t compound_mapcount;
+ atomic_t compound_pincount;
+#ifdef CONFIG_64BIT
unsigned int compound_nr; /* 1 << compound_order */
+#endif
};
struct { /* Second tail page of compound page */
unsigned long _compound_pad_1; /* compound_head */
- atomic_t hpage_pinned_refcount;
+ unsigned long _compound_pad_2;
/* For both global and memcg */
struct list_head deferred_list;
};
struct {
/* public: */
unsigned long flags;
- struct list_head lru;
+ union {
+ struct list_head lru;
+ struct {
+ void *__filler;
+ unsigned int mlock_count;
+ };
+ };
struct address_space *mapping;
pgoff_t index;
void *private;
static inline atomic_t *compound_pincount_ptr(struct page *page)
{
- return &page[2].hpage_pinned_refcount;
+ return &page[1].compound_pincount;
}
/*
#endif
struct work_struct async_put_work;
-#ifdef CONFIG_IOMMU_SUPPORT
+#ifdef CONFIG_IOMMU_SVA
u32 pasid;
#endif
} __randomize_layout;