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? This email is horribly mangled, but I don't think mixing smb_mb() and smp_load_acquire() would be considerd a best-practice, and using smp_store_release() instead would be the wrong barrier. spinlock does seem to be the only existing locking primitive that does what is needed here. Jason
