Re: [PATCH 3/7] vhost: account the per-device kernel allocations to memcg

[sashiko-bot@kernel.org]

> From: Tao Cui <cuitao@kylinos.cn>
> 
> Everything except the worker struct is allocated with plain GFP_KERNEL:
> the per-vq iovec and log arrays at VHOST_SET_OWNER, the memory table at
> VHOST_SET_MEM_TABLE whose size follows the user supplied region count,
> the pending message nodes, and the vhost_net/vhost_vsock device structs
> with their fallback to vmalloc.  The worker has been accounted since the
> vhost_task conversion.
> 
> A container that can open /dev/vhost-net or /dev/vhost-vsock, which
> device plugins hand out with passthrough, holds roughly 150KB of
> resident kernel memory per device after SET_OWNER.  Charge the rest the
> same way the worker already is.
> 
> Signed-off-by: Tao Cui <cuitao@kylinos.cn>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261106131829.3228926-1-cui.tao@linux.dev?part=3