From: Chunguang Xu <brookxu@xxxxxxxxxxx> If delayacct is disabled, then delayacct_is_task_waiting_on_io() always returns false, which causes the statistical value to be wrong. Perhaps tsk->in_iowait is better. Signed-off-by: Chunguang Xu <brookxu@xxxxxxxxxxx> --- kernel/cgroup/cgroup-v1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index 32596fd..91991e2 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -727,7 +727,7 @@ int cgroupstats_build(struct cgroupstats *stats, struct dentry *dentry) stats->nr_stopped++; break; default: - if (delayacct_is_task_waiting_on_io(tsk)) + if (tsk->in_iowait) stats->nr_io_wait++; break; } -- 1.8.3.1
