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| author | Tejun Heo <tj@kernel.org> | 2016-03-03 09:57:57 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-03-03 09:57:57 -0500 |
| commit | 20b454a61fba59be13de52b4493898583ea26d20 (patch) | |
| tree | 5ca01cf119f13dbd501886cecd917f0705382d96 /lib | |
| parent | 2378d8b8ba3d2adffb4f98c0c60ee2f448b3be69 (diff) | |
| download | lwn-20b454a61fba59be13de52b4493898583ea26d20.tar.gz lwn-20b454a61fba59be13de52b4493898583ea26d20.zip | |
cgroup: suppress spurious de-populated events
During task migration, tasks may transfer between two css_sets which
are associated with the same cgroup. If those tasks are the only
tasks in the cgroup, this currently triggers a spurious de-populated
event on the cgroup.
Fix it by bumping up populated count before bumping it down during
migration to ensure that it doesn't reach zero spuriously.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Zefan Li <lizefan@huawei.com>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions