> On Thu, Mar 18, 2010 at 08:56:23AM +0900, KOSAKI Motohiro wrote: > > > On Wed, 17 Mar 2010, Mel Gorman wrote: > > > > > > > > If select MIGRATION works, we can remove "depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE" > > > > > line from config MIGRATION. > > > > > > > > > > > > > I'm not quite getting why this would be an advantage. COMPACTION > > > > requires MIGRATION but conceivable both NUMA and HOTREMOVE can work > > > > without it. > > > > > > Avoids having to add additional CONFIG_XXX on the page migration "depends" > > > line in the future. > > > > Yes, Kconfig mess freqently shot ourself in past days. if we have a chance > > to remove unnecessary dependency, we should do. that's my intention of the last mail. > > > > But if the depends line is removed, it could be set without NUMA, memory > hot-remove or compaction enabled. That wouldn't be very useful. I'm > missing something obvious. Perhaps I'm missing something. my point is, force enabling useless config is not good idea (yes, i agree). but config selectability doesn't cause any failure. IOW, usefulness and dependency aren't related so much. personally I dislike _unnecessary_ dependency. If my opinion cause any bad thing, I'll withdraw it. of course. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>