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| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2009-01-08 13:22:55 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2009-01-08 13:22:55 +1100 |
| commit | 6206aa8b2b9a45b4cf3ee31b7209b014be349fd9 (patch) | |
| tree | 72c4223a2cc21bf055948eadb3b314ed0568ae9d /include/linux/page-flags.h | |
| parent | 95f8e302c04c0b0c6de35ab399a5551605eeb006 (diff) | |
| parent | 9e42d0cf5020aaf217433cad1a224745241d212a (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/linux/page-flags.h')
| -rw-r--r-- | include/linux/page-flags.h | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index b12f93a3c34..219a523ecdb 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -228,6 +228,7 @@ PAGEFLAG_FALSE(HighMem) PAGEFLAG(SwapCache, swapcache) #else PAGEFLAG_FALSE(SwapCache) + SETPAGEFLAG_NOOP(SwapCache) CLEARPAGEFLAG_NOOP(SwapCache) #endif #ifdef CONFIG_UNEVICTABLE_LRU @@ -372,31 +373,22 @@ static inline void __ClearPageTail(struct page *page) #define __PG_MLOCKED 0 #endif -#define PAGE_FLAGS (1 << PG_lru | 1 << PG_private | 1 << PG_locked | \ - 1 << PG_buddy | 1 << PG_writeback | \ - 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \ - __PG_UNEVICTABLE | __PG_MLOCKED) - -/* - * Flags checked in bad_page(). Pages on the free list should not have - * these flags set. It they are, there is a problem. - */ -#define PAGE_FLAGS_CLEAR_WHEN_BAD (PAGE_FLAGS | \ - 1 << PG_reclaim | 1 << PG_dirty | 1 << PG_swapbacked) - /* * Flags checked when a page is freed. Pages being freed should not have * these flags set. It they are, there is a problem. */ -#define PAGE_FLAGS_CHECK_AT_FREE (PAGE_FLAGS | 1 << PG_reserved) +#define PAGE_FLAGS_CHECK_AT_FREE \ + (1 << PG_lru | 1 << PG_private | 1 << PG_locked | \ + 1 << PG_buddy | 1 << PG_writeback | 1 << PG_reserved | \ + 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \ + __PG_UNEVICTABLE | __PG_MLOCKED) /* * Flags checked when a page is prepped for return by the page allocator. - * Pages being prepped should not have these flags set. It they are, there - * is a problem. + * Pages being prepped should not have any flags set. It they are set, + * there has been a kernel bug or struct page corruption. */ -#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | \ - 1 << PG_reserved | 1 << PG_dirty | 1 << PG_swapbacked) +#define PAGE_FLAGS_CHECK_AT_PREP ((1 << NR_PAGEFLAGS) - 1) #endif /* !__GENERATING_BOUNDS_H */ #endif /* PAGE_FLAGS_H */ |