Messages in this thread Patch in this message | | | Date | Wed, 15 Mar 2023 14:40:29 -0700 | Subject | [PATCH] cgroup: fix display of forceidle time at root | From | Josh Don <> |
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We need to reset forceidle_sum to 0 when reading from root, since the bstat we accumulate into is stack allocated.
To make this more robust, just replace the existing cputime reset with a memset of the overall bstat.
Signed-off-by: Josh Don <joshdon@google.com> --- kernel/cgroup/rstat.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c index 831f1f472bb8..0a2b4967e333 100644 --- a/kernel/cgroup/rstat.c +++ b/kernel/cgroup/rstat.c @@ -457,9 +457,7 @@ static void root_cgroup_cputime(struct cgroup_base_stat *bstat) struct task_cputime *cputime = &bstat->cputime; int i; - cputime->stime = 0; - cputime->utime = 0; - cputime->sum_exec_runtime = 0; + memset(bstat, 0, sizeof(*bstat)); for_each_possible_cpu(i) { struct kernel_cpustat kcpustat; u64 *cpustat = kcpustat.cpustat; -- 2.40.0.rc1.284.g88254d51c5-goog
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