Re: [PATCH 6.12] vsock/virtio: fix zerocopy completion for multi-skb sends

From: Sasha Levin

Date: Sun Jul 19 2026 - 11:02:22 EST


> When a large message is fragmented into multiple skbs, the zerocopy
> uarg is only allocated and attached to the last skb in the loop.
> Non-final skbs carry pinned user pages with no completion tracking,
> so the kernel has no way to notify userspace when those pages are safe
> to reuse.

Queued for 6.12, thanks.

--
Thanks,
Sasha