diff options
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 8 | ||||
| -rw-r--r-- | kernel/sched/cpuacct.c | 11 |
2 files changed, 13 insertions, 6 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 323d907eac1a..5bccb0277129 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7083,11 +7083,15 @@ int sched_rt_handler(struct ctl_table *table, int write, #ifdef CONFIG_CGROUP_SCHED +static inline struct task_group *css_tg(struct cgroup_subsys_state *css) +{ + return css ? container_of(css, struct task_group, css) : NULL; +} + /* return corresponding task_group object of a cgroup */ static inline struct task_group *cgroup_tg(struct cgroup *cgrp) { - return container_of(cgroup_css(cgrp, cpu_cgroup_subsys_id), - struct task_group, css); + return css_tg(cgroup_css(cgrp, cpu_cgroup_subsys_id)); } static struct cgroup_subsys_state *cpu_cgroup_css_alloc(struct cgroup *cgrp) diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index 4a210faaab77..8ccfa10cc89f 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -33,18 +33,21 @@ struct cpuacct { struct kernel_cpustat __percpu *cpustat; }; +static inline struct cpuacct *css_ca(struct cgroup_subsys_state *css) +{ + return css ? container_of(css, struct cpuacct, css) : NULL; +} + /* return cpu accounting group corresponding to this container */ static inline struct cpuacct *cgroup_ca(struct cgroup *cgrp) { - return container_of(cgroup_css(cgrp, cpuacct_subsys_id), - struct cpuacct, css); + return css_ca(cgroup_css(cgrp, cpuacct_subsys_id)); } /* return cpu accounting group to which this task belongs */ static inline struct cpuacct *task_ca(struct task_struct *tsk) { - return container_of(task_css(tsk, cpuacct_subsys_id), - struct cpuacct, css); + return css_ca(task_css(tsk, cpuacct_subsys_id)); } static inline struct cpuacct *__parent_ca(struct cpuacct *ca) |