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cgroup: rename cgroup_dummy_root and related names

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The dummy root will be repurposed to serve as the default unified
hierarchy.  Let's rename things in preparation.

* s/cgroup_dummy_root/cgrp_dfl_root/
* s/cgroupfs_root/cgroup_root/ as we don't do fs part directly anymore
* s/cgroup_root->top_cgroup/cgroup_root->cgrp/ for brevity

This is pure rename.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
This commit is contained in:
Tejun Heo
2014-03-19 10:23:54 -04:00
parent 944196278d
commit 3dd06ffa9d
2 changed files with 88 additions and 94 deletions
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14
include/linux/cgroup.h
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@@ -24,7 +24,7 @@
#ifdef CONFIG_CGROUPS
struct cgroupfs_root;
struct cgroup_root;
struct cgroup_subsys;
struct inode;
struct cgroup;
@@ -179,7 +179,7 @@ struct cgroup {
/* Private pointers for each registered subsystem */
struct cgroup_subsys_state __rcu *subsys[CGROUP_SUBSYS_COUNT];
struct cgroupfs_root *root;
struct cgroup_root *root;
/*
* List of cgrp_cset_links pointing at css_sets with tasks in this
@@ -211,7 +211,7 @@ struct cgroup {
#define MAX_CGROUP_ROOT_NAMELEN 64
/* cgroupfs_root->flags */
/* cgroup_root->flags */
enum {
/*
* Unfortunately, cgroup core and various controllers are riddled
@@ -272,18 +272,18 @@ enum {
};
/*
* A cgroupfs_root represents the root of a cgroup hierarchy, and may be
* A cgroup_root represents the root of a cgroup hierarchy, and may be
* associated with a kernfs_root to form an active hierarchy. This is
* internal to cgroup core. Don't access directly from controllers.
*/
struct cgroupfs_root {
struct cgroup_root {
struct kernfs_root *kf_root;
/* Unique id for this hierarchy. */
int hierarchy_id;
/* The root cgroup. Root is destroyed on its release. */
struct cgroup top_cgroup;
struct cgroup cgrp;
/* Number of cgroups in the hierarchy, used only for /proc/cgroups */
atomic_t nr_cgrps;
@@ -598,7 +598,7 @@ struct cgroup_subsys {
const char *name;
/* link to parent, protected by cgroup_lock() */
struct cgroupfs_root *root;
struct cgroup_root *root;
/*
* List of cftypes. Each entry is the first entry of an array