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

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>

1 files changed, 4 insertions, 4 deletions

diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 78a16f5b7275..19ecc8de9e6b 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -180,7 +180,7 @@ static void dev_exception_clean(struct dev_cgroup *dev_cgroup)
 /*
  * called from kernel/cgroup.c with cgroup_lock() held.
  */
-static struct cgroup_subsys_state *devcgroup_create(struct cgroup *cgroup)
+static struct cgroup_subsys_state *devcgroup_css_alloc(struct cgroup *cgroup)
 {
         struct dev_cgroup *dev_cgroup, *parent_dev_cgroup;
         struct cgroup *parent_cgroup;
@@ -210,7 +210,7 @@ static struct cgroup_subsys_state *devcgroup_create(struct cgroup *cgroup)
         return &dev_cgroup->css;
 }
 
-static void devcgroup_destroy(struct cgroup *cgroup)
+static void devcgroup_css_free(struct cgroup *cgroup)
 {
         struct dev_cgroup *dev_cgroup;
 
@@ -564,8 +564,8 @@ static struct cftype dev_cgroup_files[] = {
 struct cgroup_subsys devices_subsys = {
         .name = "devices",
         .can_attach = devcgroup_can_attach,
-        .create = devcgroup_create,
-        .destroy = devcgroup_destroy,
+        .css_alloc = devcgroup_css_alloc,
+        .css_free = devcgroup_css_free,
         .subsys_id = devices_subsys_id,
         .base_cftypes = dev_cgroup_files,