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>
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@ -171,13 +171,12 @@ static inline int __TestClearPage##uname(struct page *page) \
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#define __PAGEFLAG(uname, lname) TESTPAGEFLAG(uname, lname) \
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__SETPAGEFLAG(uname, lname) __CLEARPAGEFLAG(uname, lname)
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#define PAGEFLAG_FALSE(uname) \
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static inline int Page##uname(const struct page *page) \
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{ return 0; }
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#define TESTSCFLAG(uname, lname) \
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TESTSETFLAG(uname, lname) TESTCLEARFLAG(uname, lname)
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#define TESTPAGEFLAG_FALSE(uname) \
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static inline int Page##uname(const struct page *page) { return 0; }
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#define SETPAGEFLAG_NOOP(uname) \
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static inline void SetPage##uname(struct page *page) { }
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@ -187,12 +186,21 @@ static inline void ClearPage##uname(struct page *page) { }
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#define __CLEARPAGEFLAG_NOOP(uname) \
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static inline void __ClearPage##uname(struct page *page) { }
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#define TESTSETFLAG_FALSE(uname) \
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static inline int TestSetPage##uname(struct page *page) { return 0; }
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#define TESTCLEARFLAG_FALSE(uname) \
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static inline int TestClearPage##uname(struct page *page) { return 0; }
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#define __TESTCLEARFLAG_FALSE(uname) \
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static inline int __TestClearPage##uname(struct page *page) { return 0; }
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#define PAGEFLAG_FALSE(uname) TESTPAGEFLAG_FALSE(uname) \
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SETPAGEFLAG_NOOP(uname) CLEARPAGEFLAG_NOOP(uname)
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#define TESTSCFLAG_FALSE(uname) \
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TESTSETFLAG_FALSE(uname) TESTCLEARFLAG_FALSE(uname)
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struct page; /* forward declaration */
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TESTPAGEFLAG(Locked, locked)
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@ -248,7 +256,6 @@ PAGEFLAG_FALSE(HighMem)
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PAGEFLAG(SwapCache, swapcache)
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#else
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PAGEFLAG_FALSE(SwapCache)
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SETPAGEFLAG_NOOP(SwapCache) CLEARPAGEFLAG_NOOP(SwapCache)
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#endif
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PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable)
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@ -258,8 +265,8 @@ PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable)
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PAGEFLAG(Mlocked, mlocked) __CLEARPAGEFLAG(Mlocked, mlocked)
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TESTSCFLAG(Mlocked, mlocked) __TESTCLEARFLAG(Mlocked, mlocked)
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#else
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PAGEFLAG_FALSE(Mlocked) SETPAGEFLAG_NOOP(Mlocked)
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TESTCLEARFLAG_FALSE(Mlocked) __TESTCLEARFLAG_FALSE(Mlocked)
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PAGEFLAG_FALSE(Mlocked) __CLEARPAGEFLAG_NOOP(Mlocked)
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TESTSCFLAG_FALSE(Mlocked) __TESTCLEARFLAG_FALSE(Mlocked)
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#endif
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#ifdef CONFIG_ARCH_USES_PG_UNCACHED
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