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pageflag helpers for configed-out flags

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Define proper false/noop inline functions for noreclaim page flags when
!defined(CONFIG_UNEVICTABLE_LRU)

Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Lee Schermerhorn 2008-10-18 20:26:37 -07:00 committed by Linus Torvalds
parent 33c120ed28
commit 8a7a8544a4
1 changed files with 12 additions and 0 deletions
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12
include/linux/page-flags.h
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@ -162,6 +162,18 @@ static inline int Page##uname(struct page *page) \
#define TESTSCFLAG(uname, lname) \ #define TESTSCFLAG(uname, lname) \
TESTSETFLAG(uname, lname) TESTCLEARFLAG(uname, lname) TESTSETFLAG(uname, lname) TESTCLEARFLAG(uname, lname)
#define SETPAGEFLAG_NOOP(uname) \
static inline void SetPage##uname(struct page *page) { }
#define CLEARPAGEFLAG_NOOP(uname) \
static inline void ClearPage##uname(struct page *page) { }
#define __CLEARPAGEFLAG_NOOP(uname) \
static inline void __ClearPage##uname(struct page *page) { }
#define TESTCLEARFLAG_FALSE(uname) \
static inline int TestClearPage##uname(struct page *page) { return 0; }
struct page; /* forward declaration */ struct page; /* forward declaration */
TESTPAGEFLAG(Locked, locked) TESTPAGEFLAG(Locked, locked)