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I have updated it in my tree and also squashed the rq_clock patch into the same to prevent conflicts. https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git/log/?h=sched/scx-dlserver-boost-rebase But its a minor thing, and we can review the v4 I sent. thanks, - Joel On 6/17/2025 4:05 PM, Joel Fernandes wrote: > Signed-off-by: Joel Fernandes > --- > kernel/sched/ext.c | 39 +++++++++++++++++++++++++-------------- > 1 file changed, 25 insertions(+), 14 deletions(-) > > diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c > index 84ccab8cb838..23e5711bc4fc 100644 > --- a/kernel/sched/ext.c > +++ b/kernel/sched/ext.c > @@ -4960,6 +4960,31 @@ static void scx_disable_workfn(struct kthread_work *work) > > scx_init_task_enabled = false; > > + for_each_possible_cpu(cpu) { > + struct rq *rq = cpu_rq(cpu); > + struct rq_flags rf; > + > + /* > + * Invalidate all the rq clocks to prevent getting outdated > + * rq clocks from a previous scx scheduler. > + */ > + scx_rq_clock_invalidate(rq); > + > + /* > + * We are unloading the sched_ext scheduler, we do not need its > + * DL server bandwidth anymore, remove it for all CPUs. Whenever > + * the first SCX task is enqueued (when scx is re-loaded), its DL > + * server bandwidth will be re-initialized. > + */ > + rq_lock_irqsave(rq, &rf); > + update_rq_clock(rq); > + if (dl_server_active(&rq->ext_server)) > + dl_server_stop(&rq->ext_server); > + dl_server_remove_params(&rq->ext_server); > + rq_unlock_irqrestore(rq, &rf); > + } > + > + > scx_task_iter_start(&sti); > while ((p = scx_task_iter_next_locked(&sti))) { > const struct sched_class *old_class = p->sched_class; > @@ -4985,26 +5010,12 @@ static void scx_disable_workfn(struct kthread_work *work) > > for_each_possible_cpu(cpu) { > struct rq *rq = cpu_rq(cpu); > - struct rq_flags rf; > > /* > * Invalidate all the rq clocks to prevent getting outdated > * rq clocks from a previous scx scheduler. > */ > scx_rq_clock_invalidate(rq); > - > - /* > - * We are unloading the sched_ext scheduler, we do not need its > - * DL server bandwidth anymore, remove it for all CPUs. Whenever > - * the first SCX task is enqueued (when scx is re-loaded), its DL > - * server bandwidth will be re-initialized. > - */ > - rq_lock_irqsave(rq, &rf); > - update_rq_clock(rq); > - if (dl_server_active(&rq->ext_server)) > - dl_server_stop(&rq->ext_server); > - dl_server_remove_params(&rq->ext_server); > - rq_unlock_irqrestore(rq, &rf); > } > > /* no task is on scx, turn off all the switches and flush in-progress calls */