Symbol: FQ_GC_AGE
net/sched/sch_fq.c
253
time_after(jiffies, f->age + FQ_GC_AGE);
tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c
657
((s64)(jiffies - (flow->age + FQ_GC_AGE)) > 0);