On Thu, 6 May 2010 16:08:09 +0100 Mel Gorman <mel@xxxxxxxxx> wrote: > Migration normally requires a call to migrate_prep() as a preparation > step. This schedules work on all CPUs for pagevecs to be drained. This > makes sense for move_pages and memory hot-remove but is unnecessary > for memory compaction. > > To avoid queueing work on multiple CPUs, this patch introduces > migrate_prep_local() which drains just local pagevecs. > > This patch can be either merged with mmcompaction-memory-compaction-core.patch > or placed immediately after it to clarify why migrate_prep_local() was > introduced. > > Signed-off-by: Mel Gorman <mel@xxxxxxxxx> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- 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>