[libvirt] [PATCH v2] qemu: process: Improve update of maximum baloon state at startup

[Peter Krempa]

On Wed, Jul 01, 2015 at 10:13:27 +0200, Peter Krempa wrote:
> In commit 641a145d73fdc3dd9350fd57b3d3247abf101c05 I've added code that
> resets the ballon memory value to full size prior to resuming the vCPUs
> since the size certainly was not reduced at that point.
> 
> Since qemuProcess start is used also in code paths with already booted
> up guests (migration, save/restore) the assumption is not entirely true
> since the guest might already been running before.
> 
> This patch adds a function that queries the monitor rather than using
> the full size since a balloon event would not be reissued in case we are
> recovering a saved migration state.
> 
> Additionally the new function is used also when reconnecting to a VM
> after libvirtd restart since we might have missed a few ballon events
> while libvirtd was not running.
> ---
>  src/qemu/qemu_process.c | 38 +++++++++++++++++++++++++++++++++++++-
>  1 file changed, 37 insertions(+), 1 deletion(-)
> 

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