Re: [PATCH] infiniband: fix a possible use-after-free bug

[Cong Wang]

On Mon, Jun 4, 2018 at 9:23 AM, Gi-Oh Kim <gi-oh.kim@xxxxxxxxxxxxxxxx> wrote:
> Hi,
>
> Your patch is reasonable to me.
> Can I ask a question for that?
> Could it be solved by asymmetric locking as following?

Maybe, if you are sure taking file->mut is safe in that place.

Can you double check atomic_inc_not_zero(&mc->ctx->ref)?
I am too far away from familiar with infiniband. ;)