On Sat, May 09, 2020 at 02:47:02PM -0500, Eric Sandeen wrote: > So there's no real way to know that the grace period adjustment failed > on an older kernel. We could consider that a bug and fix it, or > consider it a change in behavior that we can't just make without > at least some form of versioning. Thoughts? I'd consider a bug, as applications are very unlikely to rely on these ignored calls (famous last words..).