diff options
| -rw-r--r-- | tools/sched_ext/scx_flatcg.bpf.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/sched_ext/scx_flatcg.bpf.c b/tools/sched_ext/scx_flatcg.bpf.c index fec359581826..0fd214cc61da 100644 --- a/tools/sched_ext/scx_flatcg.bpf.c +++ b/tools/sched_ext/scx_flatcg.bpf.c @@ -256,7 +256,7 @@ static void cgrp_cap_budget(struct cgv_node *cgv_node, struct fcg_cgrp_ctx *cgc) * and thus can't be updated and repositioned. Instead, we collect the * vtime deltas separately and apply it asynchronously here. */ - delta = __sync_fetch_and_sub(&cgc->cvtime_delta, cgc->cvtime_delta); + delta = __sync_fetch_and_and(&cgc->cvtime_delta, 0); cvtime = cgv_node->cvtime + delta; /* @@ -570,7 +570,8 @@ void BPF_STRUCT_OPS(fcg_stopping, struct task_struct *p, bool runnable) cgc = find_cgrp_ctx(cgrp); if (cgc) { __sync_fetch_and_add(&cgc->cvtime_delta, - p->se.sum_exec_runtime - taskc->bypassed_at); + (p->se.sum_exec_runtime - taskc->bypassed_at) * + FCG_HWEIGHT_ONE / (cgc->hweight ?: 1)); taskc->bypassed_at = 0; } bpf_cgroup_release(cgrp); |