Hi Santosa, Can you please be more explicit. I do manage buffers internally in my module. Some cases if it full I will lose data. Can you please provide more detailed explanation on how to approach this. Thanks.
--Sri On Wed, Feb 9, 2011 at 10:21 PM, Mulyadi Santosa <[email protected]> wrote: > On Thu, Feb 10, 2011 at 06:45, Sri Ram Vemulpali > <[email protected]> wrote: >> Hi all, >> >> How do I map some space between kernel and user space. Can anyone >> point me in to right direction. I was trying to map the packets from >> my netfilter function to kernel user space, to avoid over head of >> copying. Thanks in advance. > > Not trying to discourage you, but I assume your "filtering" function > will be engaged many many times in the case of rapid traffic...thus, > the buffer might grow rapidly too, right? In that case, are you sure > direct mapping could cope with it? Well unless you're ready to loose > some data ..... > > Anyway, I think you can do that by reserve the buffer in user space > and the get_user_page() them. As the bridge, a unique device with > ioctl() might do the job. > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com > -- Regards, Sri. _______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
