linux-kernel - Re: [PATCH 01/75] net: add APIs for manipulating skb page fragments.

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Message-ID: <20110824182113.GF15675@dumpdata.com>
Date:	Wed, 24 Aug 2011 14:21:13 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Ian Campbell <ian.campbell@...rix.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Michał Mirosław <mirq-linux@...e.qmqm.pl>
Subject: Re: [PATCH 01/75] net: add APIs for manipulating skb page fragments.

On Fri, Aug 19, 2011 at 02:26:33PM +0100, Ian Campbell wrote:
> The primary aim is to add skb_frag_(ref|unref) in order to remove the use of
> bare get/put_page on SKB pages fragments and to isolate users from subsequent
> changes to the skb_frag_t data structure.
> 
> Also included are helper APIs for passing a paged fragment to kmap and
> dma_map_page since I was seeing the same pattern a lot. A helper for
> pci_map_page is ommitted due to Michał Mirosław's recommendation that users
> should transition to pci_map_page instead.

You mean "transition to dma_map_page instead." ?
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