diff options
Diffstat (limited to 'kernel/cgroup/rstat.c')
-rw-r--r-- | kernel/cgroup/rstat.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c index 2542c21b6b6d..d80d7a608141 100644 --- a/kernel/cgroup/rstat.c +++ b/kernel/cgroup/rstat.c @@ -344,6 +344,7 @@ static void cgroup_base_stat_flush(struct cgroup *cgrp, int cpu) { struct cgroup_rstat_cpu *rstatc = cgroup_rstat_cpu(cgrp, cpu); struct cgroup *parent = cgroup_parent(cgrp); + struct cgroup_rstat_cpu *prstatc; struct cgroup_base_stat delta; unsigned seq; @@ -357,17 +358,24 @@ static void cgroup_base_stat_flush(struct cgroup *cgrp, int cpu) delta = rstatc->bstat; } while (__u64_stats_fetch_retry(&rstatc->bsync, seq)); - /* propagate percpu delta to global */ + /* propagate per-cpu delta to cgroup and per-cpu global statistics */ cgroup_base_stat_sub(&delta, &rstatc->last_bstat); cgroup_base_stat_add(&cgrp->bstat, &delta); cgroup_base_stat_add(&rstatc->last_bstat, &delta); + cgroup_base_stat_add(&rstatc->subtree_bstat, &delta); - /* propagate global delta to parent (unless that's root) */ + /* propagate cgroup and per-cpu global delta to parent (unless that's root) */ if (cgroup_parent(parent)) { delta = cgrp->bstat; cgroup_base_stat_sub(&delta, &cgrp->last_bstat); cgroup_base_stat_add(&parent->bstat, &delta); cgroup_base_stat_add(&cgrp->last_bstat, &delta); + + delta = rstatc->subtree_bstat; + prstatc = cgroup_rstat_cpu(parent, cpu); + cgroup_base_stat_sub(&delta, &rstatc->last_subtree_bstat); + cgroup_base_stat_add(&prstatc->subtree_bstat, &delta); + cgroup_base_stat_add(&rstatc->last_subtree_bstat, &delta); } } |