This is take 2 on describing why these section names exist. If accepted then it should be considered a fix for the mmotm patch mm-meminit-initialise-a-subset-of-struct-pages-if-config_deferred_struct_page_init-is-set.patch Signed-off-by: Mel Gorman <mgorman@xxxxxxx> --- mm/internal.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/mm/internal.h b/mm/internal.h index 24314b671db1..85189fce7f61 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -386,10 +386,14 @@ static inline void mminit_verify_zonelist(void) #endif /* CONFIG_DEBUG_MEMORY_INIT */ /* - * Deferred struct page initialisation requires some early init functions that - * are removed before kswapd is up and running. The feature depends on memory - * hotplug so put the data and code required by deferred initialisation into - * the __meminit section where they are preserved. + * 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>