take cgroup_open() and cpuset_open() to fs/proc/base.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 900af59..68f2157 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -42,7 +42,7 @@
 extern int cgroup_load_subsys(struct cgroup_subsys *ss);
 extern void cgroup_unload_subsys(struct cgroup_subsys *ss);
 
-extern const struct file_operations proc_cgroup_operations;
+extern int proc_cgroup_show(struct seq_file *, void *);
 
 /* Define the enumeration of all builtin cgroup subsystems */
 #define SUBSYS(_x) _x ## _subsys_id,