Re: [PATCH] VMware Balloon driver

From: Avi Kivity
Date: Tue Apr 06 2010 - 12:28:19 EST

On 04/06/2010 01:40 AM, Andrew Morton wrote:
On Tue, 06 Apr 2010 01:26:11 +0300
Avi Kivity<avi@xxxxxxxxxx> wrote:

On 04/06/2010 01:17 AM, Andrew Morton wrote:
The basic idea of the driver is to allow a guest system to give up
memory it isn't using so it can be reused by other virtual machines (or
the host itself).

So... does this differ in any fundamental way from what hibernation
does, via shrink_all_memory()?

Just the _all_ bit, and the fact that we need to report the freed page
numbers to the hypervisor.

So... why not tweak that, rather than implementing some parallel thing?

That's maybe 5 lines of code. Most of the code is focused on interpreting requests from the hypervisor and replying with the page numbers.

error compiling committee.c: too many arguments to function

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