Messages in this thread Patch in this message | | | From | brookxu <> | Subject | [PATCH 3/3] cgroup: use tsk->in_iowait instead of delayacct_is_task_waiting_on_io() | Date | Wed, 31 Mar 2021 11:24:41 +0800 |
| |
From: Chunguang Xu <brookxu@tencent.com>
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@tencent.com> --- 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
| |