diff options
Diffstat (limited to 'mm/internal.h')
| -rw-r--r-- | mm/internal.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h index 58e9022e3757..88ac7be741ca 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -387,6 +387,24 @@ static inline void mminit_verify_zonelist(void) } #endif /* CONFIG_DEBUG_MEMORY_INIT */ +/* + * Deferred struct page initialisation requires init functions that are freed + * before kswapd is available. Reuse the memory hotplug section annotation + * to mark the required code. + * + * __defermem_init is code that always exists but is annotated __meminit to + * avoid section warnings. + * __defer_init code gets marked __meminit when deferring struct page + * initialistion but is otherwise in the init section. + */ +#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT +#define __defermem_init __meminit +#define __defer_init __meminit +#else +#define __defermem_init +#define __defer_init __init +#endif + /* mminit_validate_memmodel_limits is independent of CONFIG_DEBUG_MEMORY_INIT */ #if defined(CONFIG_SPARSEMEM) extern void mminit_validate_memmodel_limits(unsigned long *start_pfn, |