Andres Freund <andres@anarazel.de> writes:
> On 2020-06-04 14:50:40 -0400, Tom Lane wrote:
>> 2. The computed completePasses value would go backwards. I bet
>> that wouldn't matter too much either, or at least we could teach
>> BgBufferSync to cope. (I notice the comments therein suggest that
>> it is already designed to cope with completePasses wrapping around,
>> so maybe nothing needs to be done.)
> If we're not concerned about that, then we can remove the
> atomic-inside-spinlock, I think. The only reason for that right now is
> to avoid assuming a wrong pass number.
Hmm. That might be a less-invasive path to a solution. I can take
a look, if you don't want to.
regards, tom lane