On Sun, 9 Jun 2024, Jason A. Donenfeld wrote:

Hi Julia & Vlastimil,

On Sun, Jun 09, 2024 at 10:27:13AM +0200, Julia Lawall wrote:

quoted

Since SLOB was removed, it is not necessary to use call_rcu
when the callback only performs kmem_cache_free. Use
kfree_rcu() directly.

Thanks, I applied this to the wireguard tree, and I'll send this out as
a fix for 6.10. Let me know if this is unfavorable to you and if you'd
like to take this somewhere yourself, in which case I'll give you my
ack.

Please push it onward.

julia

Just a question, though, for Vlastimil -- I know that with the SLOB
removal, kfree() is now allowed on kmemcache'd objects. Do you plan to
do a blanket s/kmem_cache_free/kfree/g at some point, and then remove
kmem_cache_free all together?

Jason