Subject: Re: CVS commit: syssrc/sys/arch/arm/arm32
To: None <Richard.Earnshaw@arm.com>
From: Jason R Thorpe <firstname.lastname@example.org>
Date: 10/18/2001 12:12:09
On Thu, Oct 18, 2001 at 07:14:31PM +0100, Richard Earnshaw wrote:
> But that doesn't solve the critical problem that for a given pmap we can't
> tell if the pmap is physically shared with another process (to know this,
> you need to know the proc it is part of); if it is, and we remove the
> page0 entry, then we loose the whole system.
Well, there is a reference count mechanism in the pmap subsystem...
pmap_reference() and pmap_destroy() frob it.
-- Jason R. Thorpe <email@example.com>