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mm: use const struct page for r/o page-flag accessor methods

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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>
This commit is contained in:
Ian Campbell 2011-07-25 17:11:52 -07:00 committed by Linus Torvalds
parent 33dd4e0ec9
commit 67db392d11
1 changed files with 2 additions and 2 deletions
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4
include/linux/page-flags.h
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@ -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) \