Messages in this thread | | | Date | Thu, 18 Mar 2010 11:24:14 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH 04/11] Allow CONFIG_MIGRATION to be set without CONFIG_NUMA or memory hot-remove |
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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.
-- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab
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