On 05/11/2010 04:57 AM, Mel Gorman wrote:
Hi Andrew, This patch closes the most important race in relation to exec and migration. With it applied, the swapops bug is no longer triggering for known problem workloads. If you pick it up, it should go with the other mmmigration-* fixes in mm.
This patch causes pages within the temporary stack during exec to be skipped by migration. It does this by marking the VMA covering the temporary stack with an otherwise impossible combination of VMA flags. These flags are cleared when the temporary stack is moved to its final location. [kamezawa.hiroyu@xxxxxxxxxxxxxx: Idea for having migration skip temporary stacks] Signed-off-by: Mel Gorman<mel@xxxxxxxxx> Reviewed-by: KAMEZAWA Hiroyuki<kamezawa.hiroyu@xxxxxxxxxxxxxx>
Reviewed-by: Rik van Riel <riel@xxxxxxxxxx> -- All rights reversed -- 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>