On Fri, Sep 03, 2010 at 05:38:26PM +0200, Andrea Arcangeli wrote: > From: Andrea Arcangeli <aarcange@xxxxxxxxxx> > > COMPACTION enables MIGRATION, but MIGRATION spawns a warning if numa > or memhotplug aren't selected. However MIGRATION doesn't depend on > them. I guess it's just trying to be strict doing a double check on > who's enabling it, but it doesn't know that compaction also enables > MIGRATION. > > Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> Acked-by: Mel Gorman <mel@xxxxxxxxx> This was the way an earlier version of compaction had Kconfig. I'm not sure at what point the "|| COMPACTION" got dropped. > --- > > diff --git a/mm/Kconfig b/mm/Kconfig > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -189,7 +189,7 @@ config COMPACTION > config MIGRATION > bool "Page migration" > def_bool y > - depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE > + depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION > help > Allows the migration of the physical location of pages of processes > while the virtual addresses are not changed. This is useful in > -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab -- 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>