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| author | Salman Qazi <sqazi@google.com> | 2012-06-14 14:55:30 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-06-18 15:38:02 -0700 |
| commit | 8e3bbf42c6d73881956863cc3305456afe2bc4ea (patch) | |
| tree | bb3369e7444a2efe8e890ddd341e576e3cba18c1 /kernel/rcu.h | |
| parent | 967db0ea65b0bf8507a7643ac8f296c4f2c0a834 (diff) | |
| download | op-kernel-dev-8e3bbf42c6d73881956863cc3305456afe2bc4ea.zip op-kernel-dev-8e3bbf42c6d73881956863cc3305456afe2bc4ea.tar.gz | |
cgroups: Account for CSS_DEACT_BIAS in __css_put
When we fixed the race between atomic_dec and css_refcnt, we missed
the fact that css_refcnt internally subtracts CSS_DEACT_BIAS to get
the actual reference count. This can potentially cause a refcount leak
if __css_put races with cgroup_clear_css_refs.
Signed-off-by: Salman Qazi <sqazi@google.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/rcu.h')
0 files changed, 0 insertions, 0 deletions
