Re: [PATCH sched_ext/for-7.3-fixes 4/4] sched_ext: scx_qmap: Place only on cids whose caps are in effect

[Tejun Heo]

Hello,

> This is a pre-existing issue, but can lockless readers observe a transiently
> zeroed qa.self_cids.mask here and incorrectly fall through to the rescue block?

Yes, but scx_qmap is an example scheduler and the result is a spurious rescue
insert, which isn't critical. The race is acceptable.

Thanks.

--
tejun