Merge branches 'acpica-fixes', 'acpi-pci-fixes' and 'acpi-debug-fixes'

[deliverable/linux.git] / include / linux / page-flags.h

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 6b052aa7b5b79de6712ee36fe3a424f6f93bd548..e5a32445f930d71d611098fc1e5c7dc1351c166d 100644 (file)
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -371,10 +371,15 @@ PAGEFLAG(Idle, idle, PF_ANY)
 #define PAGE_MAPPING_KSM       2
 #define PAGE_MAPPING_FLAGS     (PAGE_MAPPING_ANON | PAGE_MAPPING_KSM)
 
+static __always_inline int PageAnonHead(struct page *page)
+{
+       return ((unsigned long)page->mapping & PAGE_MAPPING_ANON) != 0;
+}
+
 static __always_inline int PageAnon(struct page *page)
 {
        page = compound_head(page);
-       return ((unsigned long)page->mapping & PAGE_MAPPING_ANON) != 0;
+       return PageAnonHead(page);
 }
 
 #ifdef CONFIG_KSM
@@ -474,7 +479,7 @@ static inline void ClearPageCompound(struct page *page)
 }
 #endif
 
-#define PG_head_mask ((1L << PG_head))
+#define PG_head_mask ((1UL << PG_head))
 
 #ifdef CONFIG_HUGETLB_PAGE
 int PageHuge(struct page *page);
@@ -665,7 +670,7 @@ static inline void ClearPageSlabPfmemalloc(struct page *page)
 }
 
 #ifdef CONFIG_MMU
-#define __PG_MLOCKED           (1 << PG_mlocked)
+#define __PG_MLOCKED           (1UL << PG_mlocked)
 #else
 #define __PG_MLOCKED           0
 #endif
@@ -675,11 +680,11 @@ static inline void ClearPageSlabPfmemalloc(struct page *page)
  * these flags set.  It they are, there is a problem.
  */
 #define PAGE_FLAGS_CHECK_AT_FREE \
-       (1 << PG_lru     | 1 << PG_locked    | \
-        1 << PG_private | 1 << PG_private_2 | \
-        1 << PG_writeback | 1 << PG_reserved | \
-        1 << PG_slab    | 1 << PG_swapcache | 1 << PG_active | \
-        1 << PG_unevictable | __PG_MLOCKED)
+       (1UL << PG_lru   | 1UL << PG_locked    | \
+        1UL << PG_private | 1UL << PG_private_2 | \
+        1UL << PG_writeback | 1UL << PG_reserved | \
+        1UL << PG_slab  | 1UL << PG_swapcache | 1UL << PG_active | \
+        1UL << PG_unevictable | __PG_MLOCKED)
 
 /*
  * Flags checked when a page is prepped for return by the page allocator.
@@ -690,10 +695,10 @@ static inline void ClearPageSlabPfmemalloc(struct page *page)
  * alloc-free cycle to prevent from reusing the page.
  */
 #define PAGE_FLAGS_CHECK_AT_PREP       \
-       (((1 << NR_PAGEFLAGS) - 1) & ~__PG_HWPOISON)
+       (((1UL << NR_PAGEFLAGS) - 1) & ~__PG_HWPOISON)
 
 #define PAGE_FLAGS_PRIVATE                             \
-       (1 << PG_private | 1 << PG_private_2)
+       (1UL << PG_private | 1UL << PG_private_2)
 /**
  * page_has_private - Determine if page has private stuff
  * @page: The page to be checked