Re: [PATCH net-next 2/3] virtio-net: use per-receive queue page frag alloc for mergeable bufs

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On Mon, Dec 23, 2013 at 11:37 AM, Michael S. Tsirkin <mst@xxxxxxxxxx> wrote:
> So there isn't a conflict with respect to locking.
>
> Is it problematic to use same page_frag with both GFP_ATOMIC and with
> GFP_KERNEL? If yes why?

I believe it is safe to use the same page_frag and I will send out a
followup patchset using just the per-receive page_frags. For future
consideration, Eric noted that disabling NAPI before GFP_KERNEL
allocs can potentially inhibit virtio-net network processing for some
time (e.g., during a blocking memory allocation or preemption).

Best,

Mike
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