mm: add a "struct page_frag" type containing a page, offset and length
A few network drivers currently use skb_frag_struct for this purpose but I have patches which add additional fields and semantics there which these other uses do not want. A structure for reference sub-page regions seems like a generally useful thing so do so instead of adding a network subsystem specific structure. Signed-off-by:Ian Campbell <ian.campbell@citrix.com> Acked-by:
Jens Axboe <jaxboe@fusionio.com> Acked-by:
David Rientjes <rientjes@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
90278c9f
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