diff options
Diffstat (limited to 'include/linux/page-flags.h')
-rw-r--r-- | include/linux/page-flags.h | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 2b87acfc5f87..13de789f0a5c 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h | |||
@@ -158,6 +158,9 @@ static inline int TestSetPage##uname(struct page *page) \ | |||
158 | static inline int TestClearPage##uname(struct page *page) \ | 158 | static inline int TestClearPage##uname(struct page *page) \ |
159 | { return test_and_clear_bit(PG_##lname, &page->flags); } | 159 | { return test_and_clear_bit(PG_##lname, &page->flags); } |
160 | 160 | ||
161 | #define __TESTCLEARFLAG(uname, lname) \ | ||
162 | static inline int __TestClearPage##uname(struct page *page) \ | ||
163 | { return __test_and_clear_bit(PG_##lname, &page->flags); } | ||
161 | 164 | ||
162 | #define PAGEFLAG(uname, lname) TESTPAGEFLAG(uname, lname) \ | 165 | #define PAGEFLAG(uname, lname) TESTPAGEFLAG(uname, lname) \ |
163 | SETPAGEFLAG(uname, lname) CLEARPAGEFLAG(uname, lname) | 166 | SETPAGEFLAG(uname, lname) CLEARPAGEFLAG(uname, lname) |
@@ -184,6 +187,9 @@ static inline void __ClearPage##uname(struct page *page) { } | |||
184 | #define TESTCLEARFLAG_FALSE(uname) \ | 187 | #define TESTCLEARFLAG_FALSE(uname) \ |
185 | static inline int TestClearPage##uname(struct page *page) { return 0; } | 188 | static inline int TestClearPage##uname(struct page *page) { return 0; } |
186 | 189 | ||
190 | #define __TESTCLEARFLAG_FALSE(uname) \ | ||
191 | static inline int __TestClearPage##uname(struct page *page) { return 0; } | ||
192 | |||
187 | struct page; /* forward declaration */ | 193 | struct page; /* forward declaration */ |
188 | 194 | ||
189 | TESTPAGEFLAG(Locked, locked) TESTSETFLAG(Locked, locked) | 195 | TESTPAGEFLAG(Locked, locked) TESTSETFLAG(Locked, locked) |
@@ -250,11 +256,11 @@ PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable) | |||
250 | #ifdef CONFIG_HAVE_MLOCKED_PAGE_BIT | 256 | #ifdef CONFIG_HAVE_MLOCKED_PAGE_BIT |
251 | #define MLOCK_PAGES 1 | 257 | #define MLOCK_PAGES 1 |
252 | PAGEFLAG(Mlocked, mlocked) __CLEARPAGEFLAG(Mlocked, mlocked) | 258 | PAGEFLAG(Mlocked, mlocked) __CLEARPAGEFLAG(Mlocked, mlocked) |
253 | TESTSCFLAG(Mlocked, mlocked) | 259 | TESTSCFLAG(Mlocked, mlocked) __TESTCLEARFLAG(Mlocked, mlocked) |
254 | #else | 260 | #else |
255 | #define MLOCK_PAGES 0 | 261 | #define MLOCK_PAGES 0 |
256 | PAGEFLAG_FALSE(Mlocked) | 262 | PAGEFLAG_FALSE(Mlocked) SETPAGEFLAG_NOOP(Mlocked) |
257 | SETPAGEFLAG_NOOP(Mlocked) TESTCLEARFLAG_FALSE(Mlocked) | 263 | TESTCLEARFLAG_FALSE(Mlocked) __TESTCLEARFLAG_FALSE(Mlocked) |
258 | #endif | 264 | #endif |
259 | 265 | ||
260 | #ifdef CONFIG_ARCH_USES_PG_UNCACHED | 266 | #ifdef CONFIG_ARCH_USES_PG_UNCACHED |
@@ -396,8 +402,8 @@ static inline void __ClearPageTail(struct page *page) | |||
396 | */ | 402 | */ |
397 | #define PAGE_FLAGS_CHECK_AT_PREP ((1 << NR_PAGEFLAGS) - 1) | 403 | #define PAGE_FLAGS_CHECK_AT_PREP ((1 << NR_PAGEFLAGS) - 1) |
398 | 404 | ||
399 | #endif /* !__GENERATING_BOUNDS_H */ | 405 | #define PAGE_FLAGS_PRIVATE \ |
400 | 406 | (1 << PG_private | 1 << PG_private_2) | |
401 | /** | 407 | /** |
402 | * page_has_private - Determine if page has private stuff | 408 | * page_has_private - Determine if page has private stuff |
403 | * @page: The page to be checked | 409 | * @page: The page to be checked |
@@ -405,8 +411,11 @@ static inline void __ClearPageTail(struct page *page) | |||
405 | * Determine if a page has private stuff, indicating that release routines | 411 | * Determine if a page has private stuff, indicating that release routines |
406 | * should be invoked upon it. | 412 | * should be invoked upon it. |
407 | */ | 413 | */ |
408 | #define page_has_private(page) \ | 414 | static inline int page_has_private(struct page *page) |
409 | ((page)->flags & ((1 << PG_private) | \ | 415 | { |
410 | (1 << PG_private_2))) | 416 | return !!(page->flags & PAGE_FLAGS_PRIVATE); |
417 | } | ||
418 | |||
419 | #endif /* !__GENERATING_BOUNDS_H */ | ||
411 | 420 | ||
412 | #endif /* PAGE_FLAGS_H */ | 421 | #endif /* PAGE_FLAGS_H */ |