[LAD] concurrent access on smp

[Clemens Ladisch]

Paul Giblock wrote:
>> If your data structures and their use require locking, which you would like
>> to avoid, there is a concept called Read-Copy-Update which is for example
>> heavily used in the kernel and is also available as an userspace library
>> (http://lttng.org/urcu).
>
> Yes, the RCU approach is quite effective.  However, better to not call
> it that since IBM has a patent on it last I checked.

Calling it by a different name won't prevent it from infringing IBM
patents.

However, IBM's RCU license for all (L)GPL projects will.

Anyway, that library is published by the patent holder.


Regards,
Clemens