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| author | JP Kobryn <inwardvessel@gmail.com> | 2025-04-04 04:10:47 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-04-04 23:01:22 +0300 |
| commit | 845a7245801142bfff411bc84afa8cdbc789562f (patch) | |
| tree | 3716896b30a44aef7389d5551c68dccd5d3e7111 /include/linux/cgroup.h | |
| parent | f6e9a26e2d488c743757d66898ae91c53ffbe528 (diff) | |
| download | linux-845a7245801142bfff411bc84afa8cdbc789562f.tar.xz | |
cgroup: add helper for checking when css is cgroup::self
The cgroup struct has a css field called "self". The main difference
between this css and the others found in the cgroup::subsys array is that
cgroup::self has a NULL subsystem pointer. There are several places where
checks are performed to determine whether the css in question is
cgroup::self or not. Instead of accessing css->ss directly, introduce a
helper function that shows the intent and use where applicable.
Signed-off-by: JP Kobryn <inwardvessel@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/cgroup.h')
| -rw-r--r-- | include/linux/cgroup.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index e7da3c3b098b..65d95bb2199f 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -347,6 +347,11 @@ static inline bool css_is_dying(struct cgroup_subsys_state *css) return css->flags & CSS_DYING; } +static inline bool css_is_cgroup(struct cgroup_subsys_state *css) +{ + return css->ss == NULL; +} + static inline void cgroup_get(struct cgroup *cgrp) { css_get(&cgrp->self); |