Evgeniy Polyakov <[EMAIL PROTECTED]> writes: > Hi. > > On Wed, Jul 18, 2007 at 11:51:03PM -0700, vinay ravuri ([EMAIL PROTECTED]) > wrote: > > How about the following approach: > > > > I allocate an skb of 0 bytes and replace data element > > of skb struct (i.e. skb.data = addr_given_by_hw) when > > the h/w interrupts me with a packet. I register for a > > destructor for this skb and when the kernel is ready > > to free the skb, I make sure that my free is invoked - > > Ofcourse this is assuming that their is a facility in > > linux socket buffers to be able to do destructors. Is > > this approach a viable, if so, are any gottcha's? > > It will not work, since kfree_skb() eventually tries to free skb->head > into kmem cache,
And in addition if the skbuff is ever passed towards the socket layer the destructor will be overwritten -Andi - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
