netdev - Re: [PATCH v2 net-next] net: refactor sk_page_frag

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Date:	Thu, 17 Oct 2013 15:46:25 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	mwdalton@...gle.com, dborkman@...hat.com, netdev@...r.kernel.org,
	ffusco@...hat.com, ycheng@...gle.com, ncardwell@...gle.com,
	digitaleric@...gle.com
Subject: Re: [PATCH v2 net-next] net: refactor sk_page_frag_refill()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sat, 12 Oct 2013 21:46:31 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> While working on virtio_net new allocation strategy to increase
> payload/truesize ratio, we found that refactoring sk_page_frag_refill()
> was needed.
> 
> This patch splits sk_page_frag_refill() into two parts, adding
> page_frag_refill() which can be used without a socket.
> 
> While we are at it, add a minimum frag size of 32 for
> sk_page_frag_refill()
> 
> Michael will either use netdev_alloc_frag() from softirq context,
> or page_frag_refill() from process context in refill_work() (GFP_KERNEL
> allocations)
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Please rename this to something like "skb_page_frag_refill" so that it
is clear that this is a networking interface.

Thanks Eric.
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