Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / proc / cmdline.c

diff --git a/kernel/fs/proc/cmdline.c b/kernel/fs/proc/cmdline.c
new file mode 100644 (file)
index 0000000..cbd82df
--- /dev/null
+++ b/kernel/fs/proc/cmdline.c
@@ -0,0 +1,29 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+static int cmdline_proc_show(struct seq_file *m, void *v)
+{
+       seq_printf(m, "%s\n", saved_command_line);
+       return 0;
+}
+
+static int cmdline_proc_open(struct inode *inode, struct file *file)
+{
+       return single_open(file, cmdline_proc_show, NULL);
+}
+
+static const struct file_operations cmdline_proc_fops = {
+       .open           = cmdline_proc_open,
+       .read           = seq_read,
+       .llseek         = seq_lseek,
+       .release        = single_release,
+};
+
+static int __init proc_cmdline_init(void)
+{
+       proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
+       return 0;
+}
+fs_initcall(proc_cmdline_init);