APPLIED: [SRU][F:linux-gcp/J:linux-gcp/N:linux-gcp/O:linux-gcp/P:linux-gcp][PATCH 0/1] Make virtio_balloon a loadable module

[Ian Whitfield]

On Tue, Apr 01, 2025 at 05:20:58PM -0700, Ian Whitfield wrote:
> BugLink: https://bugs.launchpad.net/bugs/2105142
> 
> [Impact]
> 
> Google requested that the virtio_balloon module be made loadable, rather
> than built-in. This is to support disabling the module at runtime, which
> is specified as possible in their documentation:
> https://cloud.google.com/compute/docs/dynamic-resource-management#disabling_the_virtio_memory_balloon_device
> 
> [Fix]
> 
> Change CONFIG_VIRTIO_BALLOON to build the driver as a loadable module
> rather than a built-in, drivers/virtio/* is already in the inclusion
> list, so the driver will be included in the main modules package.
> 
> A thread for Bionic was sent to the ESM mailing list.
> 
> [Test Plan]
> 
> List files in the linux-modules package and verify that virtio_balloon.ko
> is there.
> 
> [Regression potential]
> 
> The regression potential is very low since the module will still be
> included with all cloud installations and a user has to manually
> disable it to get different behavior.
> 
> Ian Whitfield (1):
>   UBUNTU: [Packaging] gcp: Make virtio_balloon loadable
> 
>  debian.gcp/config/annotations | 3 +++
>  1 file changed, 3 insertions(+)
> 
> -- 
> 2.43.0
> 

Applied to focal:linux-gcp, jammy:linux-gcp, noble:linux-gcp,
oracular:linux-gcp, and plucky:linux-gcp master-next branches.