Re: [PATCH] VMware Balloon driver

From: Avi Kivity
Date: Mon Apr 05 2010 - 18:27:10 EST

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.

Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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