On Wed, Jan 26, 2005 at 11:22:27PM -0800, David S. Miller wrote:

On Thu, 27 Jan 2005 08:16:45 +0100
Andi Kleen [off-list ref] wrote:

quoted

quoted

Yes, that's the idea.

per CPU only works in preemptive kernel if you have preemption
disabled all the time. Do you? 

Seems not likely to me.

BH is disabled in these code paths (specifically we're talking
about ->hard_start_xmit()), as that is where the recursion
check goes.

Hmm, but hard_start_xmit is allowed to enable preemption again, isn't it?

An safer alternative may be to change the cpu mask of the current process
temporarily.

-Andi