On Thu, 2025-07-17 at 10:01 +0100, Will Deacon wrote: > > -#define VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE (1024 * 4) > +/* Dimension the RX SKB so that the entire thing fits exactly into > + * a single 4KiB page. This avoids wasting memory due to alloc_skb() > + * rounding up to the next page order and also means that we > + * don't leave higher-order pages sitting around in the RX queue. > + */ > +#define > VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE SKB_WITH_OVERHEAD(1024 * 4)
Should this be SKB_WITH_OVERHEAD()? Or should it subtract VIRTIO_VSOCK_SKB_HEADROOM instead? (And also, I have use cases where I want to expand this to 64KiB. Can I make it controllable with a sockopt? module param?)
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