Re: mmap/munmap bug

[Gleb Natapov]

On Mon, Mar 21, 2005 at 07:34:02PM +0100, Arjan van de Ven wrote:
> On Mon, 2005-03-21 at 17:32 +0200, Hayim Shaul wrote:
> > Hi all,
> > 
> > I have an unexplained bug with mmap/munmap on 2.6.X.
> > 
> > I'm writing a kernel module that gives super-fast access to the network.
> > It does so by doing mmap thus avoiding the memcpy to/from user.
> 
> well... you are aware the network stack already supports generic zero
> copy networking, right ?
> 
Does it support zero copy not only for send but also for receive? Can we
receive packets directly to userspace buffers?

--
			Gleb.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/