diff options
| author | Yafang Shao <laoar.shao@gmail.com> | 2023-10-29 06:14:32 +0000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2023-11-09 13:25:47 -1000 |
| commit | aecd408b7e50742868b3305c24325a89024e2a30 (patch) | |
| tree | cef667773cd2ee6e9880ef19f62d0a02562dada6 /kernel/cgroup/cgroup-internal.h | |
| parent | 0008454e8fd30ed0017a9a35b8dd708f168931b8 (diff) | |
cgroup: Add a new helper for cgroup1 hierarchy
A new helper is added for cgroup1 hierarchy:
- task_get_cgroup1
Acquires the associated cgroup of a task within a specific cgroup1
hierarchy. The cgroup1 hierarchy is identified by its hierarchy ID.
This helper function is added to facilitate the tracing of tasks within
a particular container or cgroup dir in BPF programs. It's important to
note that this helper is designed specifically for cgroup1 only.
tj: Use irsqsave/restore as suggested by Hou Tao <houtao@huaweicloud.com>.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Cc: Hou Tao <houtao@huaweicloud.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/cgroup/cgroup-internal.h')
| -rw-r--r-- | kernel/cgroup/cgroup-internal.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h index 5e17f01ced9f..520b90dd97ec 100644 --- a/kernel/cgroup/cgroup-internal.h +++ b/kernel/cgroup/cgroup-internal.h @@ -164,7 +164,6 @@ struct cgroup_mgctx { #define DEFINE_CGROUP_MGCTX(name) \ struct cgroup_mgctx name = CGROUP_MGCTX_INIT(name) -extern spinlock_t css_set_lock; extern struct cgroup_subsys *cgroup_subsys[]; extern struct list_head cgroup_roots; |