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| author | Tejun Heo <tj@kernel.org> | 2015-10-15 20:41:51 (GMT) |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2015-10-15 20:41:51 (GMT) |
| commit | 2ceb231b0ab0e3d700c5f7c839273bfeecbefe3b (patch) | |
| tree | 8bd0339acd6735a8733f37f0f81d6b950d735c3a /Documentation/auxdisplay | |
| parent | 052c3f3a0b03651d94050d917ebc1df46a31c2f0 (diff) | |
| download | linux-2ceb231b0ab0e3d700c5f7c839273bfeecbefe3b.tar.xz | |
cgroup: make css_sets pin the associated cgroups
Currently, css_sets don't pin the associated cgroups. This is okay as
a cgroup with css_sets associated are not allowed to be removed;
however, to help resource tracking for zombie tasks, this is scheduled
to change such that a cgroup can be removed even when it has css_sets
associated as long as none of them are populated.
To ensure that a cgroup doesn't go away while css_sets are still
associated with it, make each associated css_set hold a reference on
the cgroup if non-root.
v2: Root cgroups are special and shouldn't be ref'd by css_sets.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation/auxdisplay')
0 files changed, 0 insertions, 0 deletions