cgroup: move struct cgroup_pidlist out from the header file

It's internally used only.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index dee53bdb046d503d20d6307af636a7d51ebb60ab..7da3e745b74c193fef48f4a335a40a7a8a887abc 100644 (file)
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -160,38 +160,6 @@ enum {
        CGRP_CLONE_CHILDREN,
 };
 
-/* which pidlist file are we talking about? */
-enum cgroup_filetype {
-       CGROUP_FILE_PROCS,
-       CGROUP_FILE_TASKS,
-};
-
-/*
- * A pidlist is a list of pids that virtually represents the contents of one
- * of the cgroup files ("procs" or "tasks"). We keep a list of such pidlists,
- * a pair (one each for procs, tasks) for each pid namespace that's relevant
- * to the cgroup.
- */
-struct cgroup_pidlist {
-       /*
-        * used to find which pidlist is wanted. doesn't change as long as
-        * this particular list stays in the list.
-        */
-       struct { enum cgroup_filetype type; struct pid_namespace *ns; } key;
-       /* array of xids */
-       pid_t *list;
-       /* how many elements the above list has */
-       int length;
-       /* how many files are using the current array */
-       int use_count;
-       /* each of these stored in a list by its cgroup */
-       struct list_head links;
-       /* pointer to the cgroup we belong to, for list removal purposes */
-       struct cgroup *owner;
-       /* protects the other fields */
-       struct rw_semaphore mutex;
-};
-
 struct cgroup {
        unsigned long flags;            /* "unsigned long" so bitops work */
 

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a5d3b5325f770f5347c7bdd1dca37baad1572126..6ca7acad7c55c9026bdc53cf7f3242df312b3b77 100644 (file)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -3043,6 +3043,38 @@ int cgroup_scan_tasks(struct cgroup_scanner *scan)
  *
  */
 
+/* which pidlist file are we talking about? */
+enum cgroup_filetype {
+       CGROUP_FILE_PROCS,
+       CGROUP_FILE_TASKS,
+};
+
+/*
+ * A pidlist is a list of pids that virtually represents the contents of one
+ * of the cgroup files ("procs" or "tasks"). We keep a list of such pidlists,
+ * a pair (one each for procs, tasks) for each pid namespace that's relevant
+ * to the cgroup.
+ */
+struct cgroup_pidlist {
+       /*
+        * used to find which pidlist is wanted. doesn't change as long as
+        * this particular list stays in the list.
+       */
+       struct { enum cgroup_filetype type; struct pid_namespace *ns; } key;
+       /* array of xids */
+       pid_t *list;
+       /* how many elements the above list has */
+       int length;
+       /* how many files are using the current array */
+       int use_count;
+       /* each of these stored in a list by its cgroup */
+       struct list_head links;
+       /* pointer to the cgroup we belong to, for list removal purposes */
+       struct cgroup *owner;
+       /* protects the other fields */
+       struct rw_semaphore mutex;
+};
+
 /*
  * The following two functions "fix" the issue where there are more pids
  * than kmalloc will give memory for; in such cases, we use vmalloc/vfree.