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cgroup: rename ->create/post_create/pre_destroy/destroy() to ->css_alloc/online/offline/free()

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Rename cgroup_subsys css lifetime related callbacks to better describe
what their roles are.  Also, update documentation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
This commit is contained in:
Tejun Heo 2012-11-19 08:13:38 -08:00
parent b1929db42f
commit 92fb97487a
13 changed files with 130 additions and 119 deletions
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16
kernel/sched/core.c
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@ -7468,7 +7468,7 @@ static inline struct task_group *cgroup_tg(struct cgroup *cgrp)
struct task_group, css);
}
static struct cgroup_subsys_state *cpu_cgroup_create(struct cgroup *cgrp)
static struct cgroup_subsys_state *cpu_cgroup_css_alloc(struct cgroup *cgrp)
{
struct task_group *tg, *parent;
@ -7485,7 +7485,7 @@ static struct cgroup_subsys_state *cpu_cgroup_create(struct cgroup *cgrp)
return &tg->css;
}
static void cpu_cgroup_destroy(struct cgroup *cgrp)
static void cpu_cgroup_css_free(struct cgroup *cgrp)
{
struct task_group *tg = cgroup_tg(cgrp);
@ -7845,8 +7845,8 @@ static struct cftype cpu_files[] = {
struct cgroup_subsys cpu_cgroup_subsys = {
.name = "cpu",
.create = cpu_cgroup_create,
.destroy = cpu_cgroup_destroy,
.css_alloc = cpu_cgroup_css_alloc,
.css_free = cpu_cgroup_css_free,
.can_attach = cpu_cgroup_can_attach,
.attach = cpu_cgroup_attach,
.exit = cpu_cgroup_exit,
@ -7869,7 +7869,7 @@ struct cgroup_subsys cpu_cgroup_subsys = {
struct cpuacct root_cpuacct;
/* create a new cpu accounting group */
static struct cgroup_subsys_state *cpuacct_create(struct cgroup *cgrp)
static struct cgroup_subsys_state *cpuacct_css_alloc(struct cgroup *cgrp)
{
struct cpuacct *ca;
@ -7899,7 +7899,7 @@ out:
}
/* destroy an existing cpu accounting group */
static void cpuacct_destroy(struct cgroup *cgrp)
static void cpuacct_css_free(struct cgroup *cgrp)
{
struct cpuacct *ca = cgroup_ca(cgrp);
@ -8070,8 +8070,8 @@ void cpuacct_charge(struct task_struct *tsk, u64 cputime)
struct cgroup_subsys cpuacct_subsys = {
.name = "cpuacct",
.create = cpuacct_create,
.destroy = cpuacct_destroy,
.css_alloc = cpuacct_css_alloc,
.css_free = cpuacct_css_free,
.subsys_id = cpuacct_subsys_id,
.base_cftypes = files,
};