On 12/09/2013 02:08 AM, Mel Gorman wrote: > The TLB must be flushed if the PTE is updated but change_pte_range is clearing > the PTE while marking PTEs pte_numa without necessarily flushing the TLB if it > reinserts the same entry. Without the flush, it's conceivable that two > processors > have different TLBs for the same virtual address and at the very least it > would > generate spurious faults. This patch only unmaps the pages in > change_pte_range for > a full protection change. > > Cc: sta...@vger.kernel.org > Signed-off-by: Mel Gorman <mgor...@suse.de>
Reviewed-by: Rik van Riel <r...@redhat.com> -- 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/
