Re: [PATCH v2 3/7] mm, slab: move kfence_shutdown_cache() outside slab_mutex

Jann Horn
2024-08-07T19:12:27Z

On Wed, Aug 7, 2024 at 12:31 PM Vlastimil Babka <vbabka@suse.cz> wrote:
> kfence_shutdown_cache() is called under slab_mutex when the cache is
> destroyed synchronously, and outside slab_mutex during the delayed
> destruction of SLAB_TYPESAFE_BY_RCU caches.
>
> It seems it should always be safe to call it outside of slab_mutex so we
> can just move the call to kmem_cache_release(), which is called outside.
>
> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

Reviewed-by: Jann Horn <jannh@google.com>