These changes primarily affect platforms with RMO semantics.
- Write out to local epoch requires atomic semantics,
adopt atomic store to epoch in ck_epoch_reclaim.
- Correct an issue where we would publish node availability
before record re-initialization.
- Execute full barrier in write_begin to serialize active flag
IFF we are not recursing into an epoch block. Serialize active
publication with respect to epoch walk.
- Use CAS-based tick operation for epoch counter. Despite higher
constant factor, we are much less likely to starve writers on
bursty workloads.
Samy Al Bahra
Samy Al Bahra