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Diffstat (limited to 'include/linux/page-flags.h')
-rw-r--r--include/linux/page-flags.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index bbad43fb818..b5b30f1c1e5 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -266,7 +266,7 @@ static inline void SetPageUptodate(struct page *page)
#define PG_head_tail_mask ((1L << PG_compound) | (1L << PG_reclaim))
-#define PageTail(page) ((page->flags & PG_head_tail_mask) \
+#define PageTail(page) (((page)->flags & PG_head_tail_mask) \
== PG_head_tail_mask)
static inline void __SetPageTail(struct page *page)
@@ -279,7 +279,7 @@ static inline void __ClearPageTail(struct page *page)
page->flags &= ~PG_head_tail_mask;
}
-#define PageHead(page) ((page->flags & PG_head_tail_mask) \
+#define PageHead(page) (((page)->flags & PG_head_tail_mask) \
== (1L << PG_compound))
#define __SetPageHead(page) __SetPageCompound(page)
#define __ClearPageHead(page) __ClearPageCompound(page)