Re: [PATCH] mm/mempolicy: convert mempolicy refcnt to refcount_t

[David Hildenbrand (Arm)]

On 10/16/26 01:13, Gregory Price (Meta) wrote:
> struct mempolicy uses an atomic_t as a pure reference counter.
> 
> Convert it to refcount_t so that overflow and underflow are caught
> by the refcount saturation checks.
> 
> This silences the atomic_as_refcounter.cocci warning, which started
> matching __mpol_put() when it switched kmem_cache_free() to kfree_rcu().
> 
> No functional change for correct callers.
> 
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Closes: https://lore.kernel.org/oe-kbuild-all/202610061946.Bx22ZFrw-lkp@xxxxxxxxx/
> Signed-off-by: Gregory Price (Meta) <gourry@xxxxxxxxxx>
> ---

Wondering if we want a Fixes? If this only fixes cocci warnings I guess not.

Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>

-- 
Cheers,

David