Messages in this thread Patch in this message | | | From | Pierre Gondois <> | Subject | [PATCH 5/7] sched/topology: Remove CPUs with NULL sd from HKR_TYPE_SCHED mask | Date | Wed, 3 Apr 2024 17:05:37 +0200 |
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Upon attaching a NULL sched domain to a CPU, remove the CPU from the HKR_TYPE_SCHED isolation mask. CPUs present in this mask are prevented from being added to the fair.c variables: - nohz.idle_cpus_mask - nohz.nr_cpus
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> --- kernel/sched/topology.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 63aecd2a7a9f..b4fc212ccfb0 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -775,6 +775,11 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu) sched_domain_debug(sd, cpu); + if (sd) + housekeeping_runtime_set_cpu(cpu, HKR_TYPE_SCHED); + else + housekeeping_runtime_clear_cpu(cpu, HKR_TYPE_SCHED); + rq_attach_root(rq, rd); tmp = rq->sd; rcu_assign_pointer(rq->sd, sd); -- 2.25.1
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