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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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12
mm/memcontrol.c
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@@ -4922,7 +4922,7 @@ err_cleanup:
}
static struct cgroup_subsys_state * __ref
mem_cgroup_create(struct cgroup *cont)
mem_cgroup_css_alloc(struct cgroup *cont)
{
struct mem_cgroup *memcg, *parent;
long error = -ENOMEM;
@@ -5003,14 +5003,14 @@ free_out:
return ERR_PTR(error);
}
static void mem_cgroup_pre_destroy(struct cgroup *cont)
static void mem_cgroup_css_offline(struct cgroup *cont)
{
struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
mem_cgroup_reparent_charges(memcg);
}
static void mem_cgroup_destroy(struct cgroup *cont)
static void mem_cgroup_css_free(struct cgroup *cont)
{
struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
@@ -5600,9 +5600,9 @@ static void mem_cgroup_move_task(struct cgroup *cont,
struct cgroup_subsys mem_cgroup_subsys = {
.name = "memory",
.subsys_id = mem_cgroup_subsys_id,
.create = mem_cgroup_create,
.pre_destroy = mem_cgroup_pre_destroy,
.destroy = mem_cgroup_destroy,
.css_alloc = mem_cgroup_css_alloc,
.css_offline = mem_cgroup_css_offline,
.css_free = mem_cgroup_css_free,
.can_attach = mem_cgroup_can_attach,
.cancel_attach = mem_cgroup_cancel_attach,
.attach = mem_cgroup_move_task,