diff options
| author | Johannes Weiner <hannes@cmpxchg.org> | 2016-06-17 12:24:27 -0400 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:51:04 +0300 |
| commit | c091fc3cb816ee387c842cba89fa08136c1574c8 (patch) | |
| tree | c4df8a3e0a471c720101c2bb6286ae710c93d97d /kernel/cgroup.c | |
| parent | bb21941ae247eaa6f7d744f4e3821048b98cf226 (diff) | |
cgroup: remove unnecessary 0 check from css_from_id()
css_idr allocation starts at 1, so index 0 will never point to an
item. css_from_id() currently filters that before asking idr_find(),
but idr_find() would also just return NULL, so this is not needed.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index c26010668e7e..6ef0861e08c8 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -6189,7 +6189,7 @@ struct cgroup_subsys_state *css_tryget_online_from_dir(struct dentry *dentry, struct cgroup_subsys_state *css_from_id(int id, struct cgroup_subsys *ss) { WARN_ON_ONCE(!rcu_read_lock_held()); - return id > 0 ? idr_find(&ss->css_idr, id) : NULL; + return idr_find(&ss->css_idr, id); } /** |