Re: [Qemu-devel] [PATCH v5 44/45] Disable mlock around incoming postcopy

[David Gibson]

On Wed, Feb 25, 2015 at 04:52:07PM +0000, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
> 
> Userfault doesn't work with mlock; mlock is designed to nail down pages
> so they don't move, userfault is designed to tell you when they're not
> there.
> 
> munlock the pages we userfault protect before postcopy.
> mlock everything again at the end if mlock is enabled.
> 
> Signed-off-by: Dr. David Alan Gilbert <address@hidden>

Reviewed-by: David Gibson <address@hidden>

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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