diff options
Diffstat (limited to 'net/sched')
-rw-r--r-- | net/sched/cls_cgroup.c | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index 3a294eb..867b4a3 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -23,19 +23,18 @@ #include <net/sock.h> #include <net/cls_cgroup.h> -static inline struct cgroup_cls_state *cgrp_cls_state(struct cgroup *cgrp) +static inline struct cgroup_cls_state *css_cls_state(struct cgroup_subsys_state *css) { - return container_of(cgroup_subsys_state(cgrp, net_cls_subsys_id), - struct cgroup_cls_state, css); + return css ? container_of(css, struct cgroup_cls_state, css) : NULL; } static inline struct cgroup_cls_state *task_cls_state(struct task_struct *p) { - return container_of(task_subsys_state(p, net_cls_subsys_id), - struct cgroup_cls_state, css); + return css_cls_state(task_css(p, net_cls_subsys_id)); } -static struct cgroup_subsys_state *cgrp_css_alloc(struct cgroup *cgrp) +static struct cgroup_subsys_state * +cgrp_css_alloc(struct cgroup_subsys_state *parent_css) { struct cgroup_cls_state *cs; @@ -45,17 +44,19 @@ static struct cgroup_subsys_state *cgrp_css_alloc(struct cgroup *cgrp) return &cs->css; } -static int cgrp_css_online(struct cgroup *cgrp) +static int cgrp_css_online(struct cgroup_subsys_state *css) { - if (cgrp->parent) - cgrp_cls_state(cgrp)->classid = - cgrp_cls_state(cgrp->parent)->classid; + struct cgroup_cls_state *cs = css_cls_state(css); + struct cgroup_cls_state *parent = css_cls_state(css_parent(css)); + + if (parent) + cs->classid = parent->classid; return 0; } -static void cgrp_css_free(struct cgroup *cgrp) +static void cgrp_css_free(struct cgroup_subsys_state *css) { - kfree(cgrp_cls_state(cgrp)); + kfree(css_cls_state(css)); } static int update_classid(const void *v, struct file *file, unsigned n) @@ -67,12 +68,13 @@ static int update_classid(const void *v, struct file *file, unsigned n) return 0; } -static void cgrp_attach(struct cgroup *cgrp, struct cgroup_taskset *tset) +static void cgrp_attach(struct cgroup_subsys_state *css, + struct cgroup_taskset *tset) { struct task_struct *p; void *v; - cgroup_taskset_for_each(p, cgrp, tset) { + cgroup_taskset_for_each(p, css, tset) { task_lock(p); v = (void *)(unsigned long)task_cls_classid(p); iterate_fd(p->files, 0, update_classid, v); @@ -80,14 +82,15 @@ static void cgrp_attach(struct cgroup *cgrp, struct cgroup_taskset *tset) } } -static u64 read_classid(struct cgroup *cgrp, struct cftype *cft) +static u64 read_classid(struct cgroup_subsys_state *css, struct cftype *cft) { - return cgrp_cls_state(cgrp)->classid; + return css_cls_state(css)->classid; } -static int write_classid(struct cgroup *cgrp, struct cftype *cft, u64 value) +static int write_classid(struct cgroup_subsys_state *css, struct cftype *cft, + u64 value) { - cgrp_cls_state(cgrp)->classid = (u32) value; + css_cls_state(css)->classid = (u32) value; return 0; } |