Re: [PATCH] mm/mempolicy: Convert from atomic_t to refcount_t on mempolicy->refcnt

[Muchun Song]

On Mon, Jul 19, 2021 at 4:34 PM Xiyu Yang <xiyuyang19@xxxxxxxxxxxx> wrote:
>
> refcount_t type and corresponding API can protect refcounters from
> accidental underflow and overflow and further use-after-free situations.
>
> Signed-off-by: Xiyu Yang <xiyuyang19@xxxxxxxxxxxx>
> Signed-off-by: Xin Tan <tanxin.ctf@xxxxxxxxx>

Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>