On Thu, Jul 24, 2008 at 10:56:08PM +1000, Nick Piggin wrote:

quoted

quoted

OTOH, skb allocation uses kmalloc don't they? So you could still use
SLOB ksize for that I guess.

On Thursday 24 July 2008 23:04, Herbert Xu wrote:

quoted

Yes I was referring to the data portion which is kmalloc'ed.
That is also why I'm interested in ksize because a priori we
don't know exactly how big it's going to be.  However, we do
know that statistically 1500 will dominate.

I'm not interested in ksize for kmem_cache at all.  So in fact
we could have something simpler that's based on kmalloc's rounding
algorithm instead.

On Thu, 2008-07-24 at 23:13 +1000, Nick Piggin wrote:

Yes you could definitely have a function that returns allocated
bytes for a given kmalloc size. Should be about as fast or faster
than extracting the size from the kaddr...

Yup, makes sense.