On Thu, Feb 03, 2005 at 05:23:57PM -0800, David S. Miller wrote:
>
> You're absolutely right. Ok, so we do need to change kfree_skb().
> I believe even with the memory barrier, the atomic_read() optimization
> is still worth it. atomic ops on sparc64 take a minimum of 40 some odd
> cycles on UltraSPARC-III and later, whereas the memory barrier will
> take up a single cycle most of the time.
OK, here is the patch to do that. Let's get rid of kfree_skb_fast
while we're at it since it's no longer used.
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Thanks,
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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