Re: [PATCH 01/14] wireguard: allowedips: replace call_rcu by kfree_rcu for simple kmem_cache_free callback

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Hi Julia & Vlastimil,

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

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




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