diff options
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index cfd0ac4e5e0e..4509f0cfaf39 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -39,6 +39,12 @@ struct hmm; * allows the use of atomic double word operations on the flags/mapping * and lru list pointers also. */ +#ifdef CONFIG_HAVE_ALIGNED_STRUCT_PAGE +#define _struct_page_alignment __aligned(2 * sizeof(unsigned long)) +#else +#define _struct_page_alignment +#endif + struct page { /* First double word block */ unsigned long flags; /* Atomic flags, some possibly @@ -212,15 +218,7 @@ struct page { #ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS int _last_cpupid; #endif -} -/* - * The struct page can be forced to be double word aligned so that atomic ops - * on double words work. The SLUB allocator can make use of such a feature. - */ -#ifdef CONFIG_HAVE_ALIGNED_STRUCT_PAGE - __aligned(2 * sizeof(unsigned long)) -#endif -; +} _struct_page_alignment; #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) #define PAGE_FRAG_CACHE_MAX_ORDER get_order(PAGE_FRAG_CACHE_MAX_SIZE) |