cgroup: rename cgroup_subsys->subsys_id to ->id

It's no longer referenced outside cgroup core, so renaming is easy.
Let's rename it for consistency & brevity.

This patch is pure rename.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index cd6611e622fd..198c7fcd727e 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -548,7 +548,7 @@ int cgroup_taskset_size(struct cgroup_taskset *tset);
              (task) = cgroup_taskset_next((tset)))                      \
                 if (!(skip_css) ||                                      \
                     cgroup_taskset_cur_css((tset),                      \
-                        (skip_css)->ss->subsys_id) != (skip_css))
+                        (skip_css)->ss->id) != (skip_css))
 
 /*
  * Control Group subsystem type.
@@ -592,7 +592,7 @@ struct cgroup_subsys {
         bool warned_broken_hierarchy;
 
         /* the following two fields are initialized automtically during boot */
-        int subsys_id;
+        int id;
 #define MAX_CGROUP_TYPE_NAMELEN 32
         const char *name;