On Thu, Aug 08, 2019 at 08:54:54PM +0800, Jason Wang wrote: > I don't have any objection to convert to spinlock() but just want to > know if any case that the above smp_mb() + counter looks good to you? So how about we try this: - revert the original patch for this release - new safe patch with a spinlock for the next release - whatever improvements we can come up with on top Thoughts? Because I think this needs much more scrutiny than we can give an incremental patch. -- MST