2012/7/7 David Rientjes <rientjes@xxxxxxxxxx>: > On Sat, 7 Jul 2012, Joonsoo Kim wrote: > >> __alloc_pages_direct_compact has many arguments so invoking it is very costly. >> And in almost invoking case, order is 0, so return immediately. >> > > If "zero cost" is "very costly", then this might make sense. > > __alloc_pages_direct_compact() is inlined by gcc. In my kernel image, __alloc_pages_direct_compact() is not inlined by gcc. So I send this patch. But, currently I think it is not useful, so drop it. Thanks for comments. -- 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>