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(parent: 8d3c682) | patch
cgroup: fix display of forceidle time at root
authorJosh Don <joshdon@google.com>
Wed, 15 Mar 2023 21:40:29 +0000 (14:40 -0700)
committerTejun Heo <tj@kernel.org>
Fri, 17 Mar 2023 22:19:15 +0000 (12:19 -1000)
commitfcdb1eda5302599045bb366e679cccb4216f3873
treedb8f154b993c6f51a90eb649af55435bf9b373c4tree | snapshot
parent8d3c682a5e3d9dfc2448ecbb22f4cd48359b9e21commit | diff
cgroup: fix display of forceidle time at root

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>
Fixes: 1fcf54deb767 ("sched/core: add forced idle accounting for cgroups")
Cc: stable@vger.kernel.org # v6.0+
Signed-off-by: Tejun Heo <tj@kernel.org>
kernel/cgroup/rstat.c diff | blob | history
Domain: System / Kernel;