On 10/07/2013 06:28 AM, Mel Gorman wrote: > The zero page is not replicated between nodes and is often shared between > processes. The data is read-only and likely to be cached in local CPUs > if heavily accessed meaning that the remote memory access cost is less > of a concern. This patch prevents trapping faults on the zero pages. For > tasks using the zero page this will reduce the number of PTE updates, > TLB flushes and hinting faults. > > [peterz@xxxxxxxxxxxxx: Correct use of is_huge_zero_page] > Signed-off-by: Mel Gorman <mgorman@xxxxxxx> Reviewed-by: Rik van Riel <riel@xxxxxxxxxx> -- All rights reversed -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>