Re: [PATCH] padata: Convert from atomic_t to refcount_t on parallel_data->refcnt

[Daniel Jordan]

On Mon, Jul 19, 2021 at 04:37:33PM +0800, Xiyu Yang 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>

This patch run on a big server didn't turn up anything, but it's
probably useful to have the extra checking.

Acked-by: Daniel Jordan <daniel.m.jordan@xxxxxxxxxx>