cgroup: update comment about dropping cgroup kn refs

the cgroup is actually freed in css_free_rwork_fn() now
the ref count of the cgroup's kernfs_node is also dropped there
so we need to update the corresponding comment in cgroup_mkdir()

Signed-off-by: Haorui He <mail@hehaorui.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Haorui He 2025-01-12 22:49:20 +08:00 committed by Tejun Heo
parent 3cb97a927f
commit ca3957ef3f

View File

@ -5835,7 +5835,7 @@ int cgroup_mkdir(struct kernfs_node *parent_kn, const char *name, umode_t mode)
}
/*
* This extra ref will be put in cgroup_free_fn() and guarantees
* This extra ref will be put in css_free_rwork_fn() and guarantees
* that @cgrp->kn is always accessible.
*/
kernfs_get(cgrp->kn);