diff options
| author |   Johannes Weiner <hannes@cmpxchg.org> | 2014-08-06 16:05:40 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:17 -0700 |
| commit | 2f3e442ccceb85c51c7dffd3799bfd84de213874 (patch) | |
| tree | 3cfcc32dc097f72093db88cab504902f28058551 /include/linux/page-flags.h | |
| parent | mm, thp: replace smp_mb after atomic_add by smp_mb__after_atomic (diff) | |
| download | linux-dev-2f3e442ccceb85c51c7dffd3799bfd84de213874.tar.xz linux-dev-2f3e442ccceb85c51c7dffd3799bfd84de213874.zip | |
mm: page-flags: clean up the page flag test, set, clear macros
- PAGEFLAG_FALSE only defines TEST, make it define SET and CLEAR as
well, analogous to PAGEFLAG.
- Define TESTSETFLAG_FALSE, analogous to TESTSETFLAG.
- Define TESTSCFLAG_FALSE, analogous to TESTSCFLAG
- Make PG_mlocked accessors the same on both MMU and !MMU setups
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/page-flags.h')
| -rw-r--r-- | include/linux/page-flags.h | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 8304959ad336..e1f5fcd79792 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -171,13 +171,12 @@ static inline int __TestClearPage##uname(struct page *page) \ #define __PAGEFLAG(uname, lname) TESTPAGEFLAG(uname, lname) \ __SETPAGEFLAG(uname, lname) __CLEARPAGEFLAG(uname, lname) -#define PAGEFLAG_FALSE(uname) \ -static inline int Page##uname(const struct page *page) \ - { return 0; } - #define TESTSCFLAG(uname, lname) \ TESTSETFLAG(uname, lname) TESTCLEARFLAG(uname, lname) +#define TESTPAGEFLAG_FALSE(uname) \ +static inline int Page##uname(const struct page *page) { return 0; } + #define SETPAGEFLAG_NOOP(uname) \ static inline void SetPage##uname(struct page *page) { } @@ -187,12 +186,21 @@ static inline void ClearPage##uname(struct page *page) { } #define __CLEARPAGEFLAG_NOOP(uname) \ static inline void __ClearPage##uname(struct page *page) { } +#define TESTSETFLAG_FALSE(uname) \ +static inline int TestSetPage##uname(struct page *page) { return 0; } + #define TESTCLEARFLAG_FALSE(uname) \ static inline int TestClearPage##uname(struct page *page) { return 0; } #define __TESTCLEARFLAG_FALSE(uname) \ static inline int __TestClearPage##uname(struct page *page) { return 0; } +#define PAGEFLAG_FALSE(uname) TESTPAGEFLAG_FALSE(uname) \ + SETPAGEFLAG_NOOP(uname) CLEARPAGEFLAG_NOOP(uname) + +#define TESTSCFLAG_FALSE(uname) \ + TESTSETFLAG_FALSE(uname) TESTCLEARFLAG_FALSE(uname) + struct page; /* forward declaration */ TESTPAGEFLAG(Locked, locked) @@ -248,7 +256,6 @@ PAGEFLAG_FALSE(HighMem) PAGEFLAG(SwapCache, swapcache) #else PAGEFLAG_FALSE(SwapCache) - SETPAGEFLAG_NOOP(SwapCache) CLEARPAGEFLAG_NOOP(SwapCache) #endif PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable) @@ -258,8 +265,8 @@ PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable) PAGEFLAG(Mlocked, mlocked) __CLEARPAGEFLAG(Mlocked, mlocked) TESTSCFLAG(Mlocked, mlocked) __TESTCLEARFLAG(Mlocked, mlocked) #else -PAGEFLAG_FALSE(Mlocked) SETPAGEFLAG_NOOP(Mlocked) - TESTCLEARFLAG_FALSE(Mlocked) __TESTCLEARFLAG_FALSE(Mlocked) +PAGEFLAG_FALSE(Mlocked) __CLEARPAGEFLAG_NOOP(Mlocked) + TESTSCFLAG_FALSE(Mlocked) __TESTCLEARFLAG_FALSE(Mlocked) #endif #ifdef CONFIG_ARCH_USES_PG_UNCACHED |