On 12/09/2013 02:09 AM, Mel Gorman wrote: > On a protection change it is no longer clear if the page should be still > accessible. This patch clears the NUMA hinting fault bits on a protection > change.
I had to think about this one, because my first thought was "wait, aren't NUMA ptes inaccessible already?". Then I thought about doing things like adding read or write permission in the mprotect, eg. changing from PROT_NONE to PROT_READ ... and it became unclear what to do with the NUMA bit in that case... This patch clears up some confusing situations :) > Cc: [email protected] > Signed-off-by: Mel Gorman <[email protected]> Reviewed-by: Rik van Riel <[email protected]> -- All rights reversed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
