Messages in this thread |  | | Subject | Re: [PATCH V6 2/4 net-next] skbuff: Add userspace zero-copy buffers in skb | | From | Eric Dumazet <> | | Date | Thu, 26 May 2011 22:55:25 +0200 |
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Le jeudi 26 mai 2011 à 13:24 -0700, Shirley Ma a écrit :
> 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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