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...
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 6081493..3e5a1b1 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -135,7 +135,7 @@
* 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 @@
__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) \
