linux-kernel - [PATCH 02/13] mm: use const struct page for r/o page-flag accessor methods

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Message-ID: <1311340653-19336-2-git-send-email-ian.campbell@citrix.com>
Date:	Fri, 22 Jul 2011 14:17:22 +0100
From:	Ian Campbell <ian.campbell@...rix.com>
To:	netdev@...r.kernel.org, linux-nfs@...r.kernel.org
CC:	Ian Campbell <ian.campbell@...rix.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Michel Lespinasse <walken@...gle.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 02/13] mm: use const struct page for r/o page-flag accessor methods

In a subsquent patch I have a const struct page in my hand...

Signed-off-by: Ian Campbell <ian.campbell@...rix.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Andrea Arcangeli <aarcange@...hat.com>
Cc: Rik van Riel <riel@...hat.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Michel Lespinasse <walken@...gle.com>
Cc: linux-kernel@...r.kernel.org
---
 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 6081493..7d632cc 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -135,7 +135,7 @@ enum pageflags {
  * Macros to create function definitions for page flags
  */
 #define TESTPAGEFLAG(uname, lname)					\
-static inline int Page##uname(struct page *page) 			\
+static inline int Page##uname(const struct page *page) 			\
 			{ return test_bit(PG_##lname, &page->flags); }
 
 #define SETPAGEFLAG(uname, lname)					\
@@ -173,7 +173,7 @@ static inline int __TestClearPage##uname(struct page *page)		\
 	__SETPAGEFLAG(uname, lname)  __CLEARPAGEFLAG(uname, lname)
 
 #define PAGEFLAG_FALSE(uname) 						\
-static inline int Page##uname(struct page *page) 			\
+static inline int Page##uname(const struct page *page) 			\
 			{ return 0; }
 
 #define TESTSCFLAG(uname, lname)					\
-- 
1.7.2.5

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