Hi, Manfred Spraul,Did you already post V2, did you cc me?
Thanks you for re-propose kfree_rcu().
I NAK. this patch.
Comparing with my patch(V1), your patch has several improvements.
But core idea is the same as my patch.
This idea(share offset with function pointer) has some disadvantages.
And I had implemented V2 and the patches for using kfree_rcu().
The V2 patch has not tested enough, but It will be done in one month.