diff options
Diffstat (limited to 'kernel/cpuset.c')
| -rw-r--r-- | kernel/cpuset.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index f7371341d42a..6e9cbdde25bd 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -114,18 +114,21 @@ struct cpuset { int relax_domain_level; }; +static inline struct cpuset *css_cs(struct cgroup_subsys_state *css) +{ + return css ? container_of(css, struct cpuset, css) : NULL; +} + /* Retrieve the cpuset for a cgroup */ static inline struct cpuset *cgroup_cs(struct cgroup *cgrp) { - return container_of(cgroup_css(cgrp, cpuset_subsys_id), - struct cpuset, css); + return css_cs(cgroup_css(cgrp, cpuset_subsys_id)); } /* Retrieve the cpuset for a task */ static inline struct cpuset *task_cs(struct task_struct *task) { - return container_of(task_css(task, cpuset_subsys_id), - struct cpuset, css); + return css_cs(task_css(task, cpuset_subsys_id)); } static inline struct cpuset *parent_cs(struct cpuset *cs) |