From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: pgd_alloc and [cd]tors
Date: Thu, 16 Nov 2006 16:50:59 -0800
Message-ID: <455D0773.2050906@goop.org>
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To: Chris Wright <chrisw@sous-sol.org>, Rusty Russell <rusty@rustcorp.com.au>, Zachary Amsden <zach@vmware.com>
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Is there any real use in having a ctor/dtor for the pgd cache?  Given
that all pgd allocation happens via pgd_alloc/pgd_free, why not just
fold the [cd]tor in?

I'm asking because Xen wants pgd[3] to be unshared in the PAE case, and
it looks to me like the easiest way to handle that is by making
pgd_alloc/free pv-ops and doing the appropriate thing in the Xen code. =

Would need to sort out the vmalloc mapping replication as well, but I
think that's pretty straightforward.

    J