Re: [PATCH 2/5] KEYS: user_defined: sanitize key payloads

[David Howells]

Eric Biggers <ebiggers3@xxxxxxxxx> wrote:

> > Add kzfree_rcu()?
> > 
> > David
> 
> We could, but it's not trivial because the way kfree_rcu() works is to store
> the offset of the rcu_head as the callback function, then have a special
> case in RCU reclaim that recognizes "function pointers" with value < 4096
> and call kfree() rather than the function. ...

Okay, that sounds reasonable.

David