On 12/06/2013 07:25 PM, Christoph Lameter wrote: > On Fri, 6 Dec 2013, Rik van Riel wrote: > >>> When you start migrating a page a special page migration entry is >>> created that will trap all accesses to the page. You can safely flush when >>> the migration entry is there. Only allow a new PTE/PMD to be put there >>> *after* the tlb flush. >> >> A PROT_NONE or NUMA pte is just as effective as a migration pte. >> The only problem is, the TLB flush was not always done... > > Ok then what are you trying to fix?
It would help if you had actually read the patch. -- All rights reversed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
