svn commit: r195007 - user/kmacy/releng_7_2_fcs/sys/amd64/amd64

[Kip Macy]

On Thu, Jun 25, 2009 at 2:59 PM, Kip Macy<kmacy at freebsd.org> wrote:
> Author: kmacy
> Date: Thu Jun 25 21:59:16 2009
> New Revision: 195007
> URL: http://svn.freebsd.org/changeset/base/195007
>
> Log:
>  Parts of vm_page_free_toq need the vm page queue lock held. To avoid a
>  LOR between the pmap lock and the vm page queue mutex in routines calling
>  vm_page_free, we either need to aquire the vm page queue lock in advance
>  (diminishing the value of the vm page lock) or we need to to defer page
>  freeing until the pmap lock is held. This

Defer until the pmap lock is not held.