Re: [PATCH] kernfs: Convert from atomic_t to refcount_t on kernfs_node->count

[Greg Kroah-Hartman]

On Mon, Jul 19, 2021 at 04:33:21PM +0800, Xiyu Yang wrote:
> refcount_t type and corresponding API can protect refcounters from
> accidental underflow and overflow and further use-after-free situations.

But this really is a count, not a refcount.

So are you _sure_ this should be changed?

What did you to do to test this?

thanks,

greg k-h