Re: [PATCH sched_ext/for-7.3-fixes] sched_ext: Generate qseq from a per-task counter

[Kuba Piecuch]

Hi Tejun,

On Fri, Oct 02, 2026 at 12:33:27PM -1000, Tejun Heo wrote:
> Maybe wrap the counter where the QSEQ field wraps instead of looping?
>
> 	p->scx.ops_qseq = ((p->scx.ops_qseq + 1) &
> 			   (SCX_OPSS_QSEQ_MASK >> SCX_OPSS_QSEQ_SHIFT)) ?: 1;
> 	qseq = (unsigned long)p->scx.ops_qseq << SCX_OPSS_QSEQ_SHIFT;
>
> On 32bit, the shift drops the top two bits of the counter, so the mask is
> what keeps the counter from reaching a value that shifts to 0.

Sounds good, will send a v2 with this change.

Thanks,
Kuba