diff options
Diffstat (limited to 'include/linux/page-flags.h')
| -rw-r--r-- | include/linux/page-flags.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index c74d3e875314..57b688cfb5e2 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -93,6 +93,7 @@ enum pageflags { PG_mappedtodisk, /* Has blocks allocated on-disk */ PG_reclaim, /* To be reclaimed asap */ PG_buddy, /* Page is free, on buddy lists */ + PG_swapbacked, /* Page is backed by RAM/swap */ #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PG_uncached, /* Page has been mapped as uncached */ #endif @@ -176,6 +177,7 @@ PAGEFLAG(SavePinned, savepinned); /* Xen */ PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved) PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private) __SETPAGEFLAG(Private, private) +PAGEFLAG(SwapBacked, swapbacked) __CLEARPAGEFLAG(SwapBacked, swapbacked) __PAGEFLAG(SlobPage, slob_page) __PAGEFLAG(SlobFree, slob_free) @@ -334,7 +336,8 @@ static inline void __ClearPageTail(struct page *page) * 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) +#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 @@ -347,7 +350,8 @@ static inline void __ClearPageTail(struct page *page) * Pages being prepped should not have these flags set. It they are, there * is a problem. */ -#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | 1 << PG_reserved | 1 << PG_dirty) +#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | \ + 1 << PG_reserved | 1 << PG_dirty | 1 << PG_swapbacked) #endif /* !__GENERATING_BOUNDS_H */ #endif /* PAGE_FLAGS_H */ |