Messages in this thread Patch in this message | | | From | David Howells <> | Subject | [PATCH] MM: Fix macro argument substitution in PageHead() and PageTail() | Date | Thu, 21 Feb 2008 16:12:45 +0000 |
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From: David Howells <dhowells@redhat.com>
Fix macro argument substitution in PageHead() and PageTail() - 'page' should have brackets surrounding it (commit 6d7779538f765963ced45a3fa4bed7ba8d2c277d).
Signed-off-by: David Howells <dhowells@redhat.com> ---
include/linux/page-flags.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index bbad43f..b5b30f1 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)
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