v4.19.13 snapshot.
diff --git a/fs/proc/version.c b/fs/proc/version.c
new file mode 100644
index 0000000..b449f18
--- /dev/null
+++ b/fs/proc/version.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/utsname.h>
+
+static int version_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, linux_proc_banner,
+ utsname()->sysname,
+ utsname()->release,
+ utsname()->version);
+ return 0;
+}
+
+static int __init proc_version_init(void)
+{
+ proc_create_single("version", 0, NULL, version_proc_show);
+ return 0;
+}
+fs_initcall(proc_version_init);