Re: [RFC 1/8] mm: add overflow and underflow checks for page->_refcount
On Tue, Oct 26, 2021 at 09:21:29PM -0400, Pasha Tatashin wrote: > I think we can do that by using: > atomic_fetch_*() and check for overflow/underflow after operation. I > will send the updated series soon.
Please include performance measurements. You're adding code to some hot paths.