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From: Keir Fraser <keir@xensource.com>
To: Jan Beulich <jbeulich@novell.com>, xen-devel@lists.xensource.com
Subject: Re: [PATCH] linux/x86-64: allow kernel init memory to be freed
Date: Fri, 02 Mar 2007 16:19:22 +0000	[thread overview]
Message-ID: <C20DFF0A.A837%keir@xensource.com> (raw)
In-Reply-To: <45E85870.76E4.0078.0@novell.com>

On 2/3/07 16:01, "Jan Beulich" <jbeulich@novell.com> wrote:

> The mappings in the direct map area must be writeable and, as the comment
> says, make_readonly() forces all kernel space mappings to be set up as
> read-only during boot. Thus this does *not* depend on
> XENFEAT_writable_page_tables, unless make_readonly() is changed.

Ok, understood.

> So - would you be okay with taking the full-blown patch (probably not, as it
> touches another file not currently in the sparse tree), or should I create a
> __make_page_inaccessible() function along the lines of
> __make_page_readonly()/__make_page_writable()?

Yeah, I'll go with __make_page_inaccessible(). :-)

 -- Keir

  reply	other threads:[~2007-03-02 16:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-02 11:04 [PATCH] linux/x86-64: allow kernel init memory to be freed Jan Beulich
2007-03-02 15:23 ` Keir Fraser
2007-03-02 16:01   ` Jan Beulich
2007-03-02 16:19     ` Keir Fraser [this message]
2007-03-05  9:51       ` Jan Beulich

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