On Thu, 23 Apr 2015 11:33:10 +0100 Mel Gorman <mgorman@xxxxxxx> wrote: > This patch initalises all low memory struct pages and 2G of the highest zone > on each node during memory initialisation if CONFIG_DEFERRED_STRUCT_PAGE_INIT > is set. That config option cannot be set but will be available in a later > patch. Parallel initialisation of struct page depends on some features > from memory hotplug and it is necessary to alter alter section annotations. > > ... > > +#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT > +#define __defermem_init __meminit > +#define __defer_init __meminit > +#else > +#define __defermem_init > +#define __defer_init __init > +#endif Could we get some comments describing these? What they do, when and where they should be used. I have a suspicion that the naming isn't good, but I didn't spend a lot of time reverse-engineering the intent... -- 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>