What are ck_queue.h guarantees?

[Lev Serebryakov]

Hello Kristof,

Sunday, October 14, 2018, 9:14:31 AM, you wrote:

>>   But in all places at kernel I peeked, CK_XXXX macros are protected by
>>  locks. Yes, even read ones.

> Note that the implementation of if_maddr_rlock() doesn’t actually take a
> lock. Instead it calls epoch_enter_preempt().
 Oh, I've should look inside these functions before asking. Thank you for
pointing me out.

> I suspect the ‘lock’/‘unlock’ naming is mostly historical here: i.e. it
> used to be a real lock, and when it was replaced by the epoch-based
> approach the functions were not renamed.
  Yep, and it is very misleading :-)


-- 
Best regards,
 Lev                            mailto:lev at FreeBSD.org