On (18/06/07 10:04), Christoph Lameter didst pronounce: > On Mon, 18 Jun 2007, Mel Gorman wrote: > > > > > CONFIG_MIGRATION currently depends on CONFIG_NUMA. move_pages() is the only > > user of migration today and as this system call is only meaningful on NUMA, > > it makes sense. However, memory compaction will operate within a zone and is > > There are more user of migration. move_pages is one of them, then there is > cpuset process migration, MPOL_BIND page migration and sys_migrate_pages > for explicit process migration.
Ok, this was poor phrasing. Each of those features are NUMA related even though the core migration mechanism is not dependant on NUMA. > > > useful on both NUMA and non-NUMA systems. This patch allows CONFIG_MIGRATION > > to be used in all memory models. To preserve existing behaviour, > > move_pages() > > is only available when CONFIG_NUMA is set. > > What does this have to do with memory models? A bit unclear. > More poor phrasing. It would have been clearer to simply say that the patch allows CONFIG_MIGRATION to be used without NUMA. > Otherwise > > Acked-by: Christoph Lameter <[EMAIL PROTECTED]> Thanks -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
