diff options
| -rw-r--r-- | mm/internal.h | 10 | ||||
| -rw-r--r-- | mm/page_alloc.c | 10 |
2 files changed, 10 insertions, 10 deletions
diff --git a/mm/internal.h b/mm/internal.h index a3110c02aea..953f941ea86 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -37,4 +37,14 @@ static inline void __put_page(struct page *page) extern void fastcall __init __free_pages_bootmem(struct page *page, unsigned int order); +/* + * function for dealing with page's order in buddy system. + * zone->lock is already acquired when we use these. + * So, we don't need atomic page->flags operations here. + */ +static inline unsigned long page_order(struct page *page) +{ + VM_BUG_ON(!PageBuddy(page)); + return page_private(page); +} #endif diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a8a53f879df..71ced519c31 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -313,16 +313,6 @@ static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags) clear_highpage(page + i); } -/* - * function for dealing with page's order in buddy system. - * zone->lock is already acquired when we use these. - * So, we don't need atomic page->flags operations here. - */ -static inline unsigned long page_order(struct page *page) -{ - return page_private(page); -} - static inline void set_page_order(struct page *page, int order) { set_page_private(page, order); |