Re: [PATCH V6 2/4 net-next] skbuff: Add userspace zero-copybuffers in skb

[Eric Dumazet]

Le jeudi 26 mai 2011 Ã 13:24 -0700, Shirley Ma a Ãcrit :

> I could reduce callback pointer by moving it to *arg, but not desc, this
> indicates that which buffer DMA hasn't done yet in *arg.


I guess you dont need to use skb itself to hold all your states ?

I understand its convenient for you, but I believe its worth the pain to
use only one pointer to a (small) object where you put all your stuff.

Some machines alloc/free millions of skbs per second. 

If/when most skb uses are for userspace zero-copy buffers we can embbed
your small object in skb itself ;)


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