spinlock_t *ptl = NULL;
#if USE_SPLIT_PTE_PTLOCKS
- ptl = ptlock_ptr(page);
+ ptl = ptlock_ptr(page_ptdesc(page));
spin_lock_nest_lock(ptl, &mm->page_table_lock);
#endif
bool ptlock_alloc(struct ptdesc *ptdesc);
extern void ptlock_free(struct page *page);
-static inline spinlock_t *ptlock_ptr(struct page *page)
+static inline spinlock_t *ptlock_ptr(struct ptdesc *ptdesc)
{
- return page->ptl;
+ return ptdesc->ptl;
}
#else /* ALLOC_SPLIT_PTLOCKS */
static inline void ptlock_cache_init(void)
{
}
-static inline spinlock_t *ptlock_ptr(struct page *page)
+static inline spinlock_t *ptlock_ptr(struct ptdesc *ptdesc)
{
- return &page->ptl;
+ return &ptdesc->ptl;
}
#endif /* ALLOC_SPLIT_PTLOCKS */
static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd)
{
- return ptlock_ptr(pmd_page(*pmd));
+ return ptlock_ptr(page_ptdesc(pmd_page(*pmd)));
}
static inline bool ptlock_init(struct page *page)
VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page);
if (!ptlock_alloc(page_ptdesc(page)))
return false;
- spin_lock_init(ptlock_ptr(page));
+ spin_lock_init(ptlock_ptr(page_ptdesc(page)));
return true;
}
static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
{
- return ptlock_ptr(ptdesc_page(pmd_ptdesc(pmd)));
+ return ptlock_ptr(pmd_ptdesc(pmd));
}
static inline bool pmd_ptlock_init(struct page *page)