Messages in this thread | | | Date | Fri, 16 Nov 2012 11:08:51 -0500 | From | Rik van Riel <> | Subject | Re: [PATCH 14/43] mm: mempolicy: Use _PAGE_NUMA to migrate pages |
| |
On 11/16/2012 06:22 AM, Mel Gorman wrote: > Note: Based on "mm/mpol: Use special PROT_NONE to migrate pages" but > sufficiently different that the signed-off-bys were dropped > > Combine our previous _PAGE_NUMA, mpol_misplaced and migrate_misplaced_page() > pieces into an effective migrate on fault scheme. > > Note that (on x86) we rely on PROT_NONE pages being !present and avoid > the TLB flush from try_to_unmap(TTU_MIGRATION). This greatly improves the > page-migration performance. > > Based-on-work-by: Peter Zijlstra <a.p.zijlstra@chello.nl> > Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
(this is getting easier, I must have reviewed this code 4x now)
-- All rights reversed
| |