On Wed, 18 Jul 2012 10:22:00 +0900
Minchan Kim [off-list ref] wrote:

quoted

Is this really necessary?  Does the zone start out all-zeroes?  If not, can we
make it do so?

Good point.
It can remove zap_zone_vm_stats and zone->flags = 0, too.
More important thing is that we could remove adding code to initialize
zero whenever we add new field to zone. So I look at the code.

In summary, IMHO, all is already initialie zero out but we need double
check in mips.

Well, this is hardly a performance-critical path.  So rather than
groveling around ensuring that each and every architectures does the
right thing, would it not be better to put a single memset() into core
MM if there is an appropriate place?

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