proc: move /proc/schedstat boilerplate to kernel/sched_stats.h Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index f6d25db..4a768ed 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c

@@ -195,9 +195,6 @@
 	proc_symlink("mounts", NULL, "self/mounts");
 
 	/* And now for trickier ones */
-#ifdef CONFIG_SCHEDSTATS
-	proc_create("schedstat", 0, NULL, &proc_schedstat_operations);
-#endif
 #ifdef CONFIG_PROC_KCORE
 	proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
 	if (proc_root_kcore)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5c38db5..7f60cb9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h

@@ -681,10 +681,6 @@
 };
 #endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */
 
-#ifdef CONFIG_SCHEDSTATS
-extern const struct file_operations proc_schedstat_operations;
-#endif /* CONFIG_SCHEDSTATS */
-
 #ifdef CONFIG_TASK_DELAY_ACCT
 struct task_delay_info {
 	spinlock_t	lock;

diff --git a/kernel/sched.c b/kernel/sched.c
index d906f72..5a70189 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c

@@ -55,6 +55,7 @@
 #include <linux/cpuset.h>
 #include <linux/percpu.h>
 #include <linux/kthread.h>
+#include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/sysctl.h>
 #include <linux/syscalls.h>

diff --git a/kernel/sched_stats.h b/kernel/sched_stats.h
index b8c1569..3d14ce2 100644
--- a/kernel/sched_stats.h
+++ b/kernel/sched_stats.h

@@ -90,13 +90,20 @@
 	return res;
 }
 
-const struct file_operations proc_schedstat_operations = {
+static const struct file_operations proc_schedstat_operations = {
 	.open    = schedstat_open,
 	.read    = seq_read,
 	.llseek  = seq_lseek,
 	.release = single_release,
 };
 
+static int __init proc_schedstat_init(void)
+{
+	proc_create("schedstat", 0, NULL, &proc_schedstat_operations);
+	return 0;
+}
+module_init(proc_schedstat_init);
+
 /*
  * Expects runqueue lock to be held for atomicity of update
  */