hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/ICA1GK -------------------------------- Which is to get the total CPU usage of a task's CPU accounting cgroup. Signed-off-by: GONG Ruiqi <gongruiqi1@huawei.com> --- kernel/sched/cpuacct.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index 3d3d12b60572..801f3df9734c 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -414,6 +414,13 @@ struct cpuacct *task_cpuacct(struct task_struct *tsk) return tsk ? task_ca(tsk) : NULL; } +__bpf_kfunc u64 bpf_task_ca_cpuusage(struct task_struct *p) +{ + if (!p) + return 0; + return cpuusage_read(task_css(p, cpuacct_cgrp_id), NULL); +} + __bpf_kfunc void bpf_cpuacct_kcpustat_cpu_fetch(struct kernel_cpustat *dst, struct cpuacct *ca, int cpu) { @@ -421,6 +428,7 @@ __bpf_kfunc void bpf_cpuacct_kcpustat_cpu_fetch(struct kernel_cpustat *dst, } BTF_SET8_START(bpf_cpuacct_kfunc_ids) +BTF_ID_FLAGS(func, bpf_task_ca_cpuusage) BTF_ID_FLAGS(func, bpf_cpuacct_kcpustat_cpu_fetch) BTF_SET8_END(bpf_cpuacct_kfunc_ids) -- 2.25.1