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| author | Tejun Heo <tj@kernel.org> | 2013-04-14 20:50:08 -0700 |
|---|---|---|
| committer | Maciej Wereski <m.wereski@partner.samsung.com> | 2014-12-29 09:31:37 +0100 |
| commit | a5d3882f7dda6213caccd748809a1be9961fb2dc (patch) | |
| tree | b6f0240d616b447668764c47310996ad5db33bbd /include | |
| parent | 4912bfd6d1e13b32f9c9efa43ff6dfcb59618c58 (diff) | |
| download | linux-3.10-a5d3882f7dda6213caccd748809a1be9961fb2dc.tar.gz linux-3.10-a5d3882f7dda6213caccd748809a1be9961fb2dc.tar.bz2 linux-3.10-a5d3882f7dda6213caccd748809a1be9961fb2dc.zip | |
cgroup: implement task_cgroup_path_from_hierarchy()
kdbus folks want a sane way to determine the cgroup path that a given
task belongs to on a given hierarchy, which is a reasonble thing to
expect from cgroup core.
Implement task_cgroup_path_from_hierarchy().
v2: Dropped unnecessary NULL check on the return value of
task_cgroup_from_root() as suggested by Li Zefan.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <greg@kroah.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Kay Sievers <kay@vrfy.org>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: Daniel Mack <daniel@zonque.org>
Change-Id: Ifd630e09163b8272627c2ef8be1866c5e9dc05f9
Origin: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=857a2beb09ab83e9a8185821ae16db7dfbe8b837
Backported-by: Maciej Wereski <m.wereski@partner.samsung.com>
Signed-off-by: Maciej Wereski <m.wereski@partner.samsung.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cgroup.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 8852d370c72..5982ebf66ae 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -542,6 +542,8 @@ int cgroup_is_removed(const struct cgroup *cgrp); bool cgroup_is_descendant(struct cgroup *cgrp, struct cgroup *ancestor); int cgroup_path(const struct cgroup *cgrp, char *buf, int buflen); +int task_cgroup_path_from_hierarchy(struct task_struct *task, int hierarchy_id, + char *buf, size_t buflen); int cgroup_task_count(const struct cgroup *cgrp); |