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Tip revision: 2ef96a5bb12be62ef75b5828c0aab838ebb29cb8 authored by Linus Torvalds on 10 May 2020, 22:16:58 UTC
Linux 5.7-rc5
Tip revision: 2ef96a5
noinitramfs.c
// SPDX-License-Identifier: GPL-2.0-only
/*
 * init/noinitramfs.c
 *
 * Copyright (C) 2006, NXP Semiconductors, All Rights Reserved
 * Author: Jean-Paul Saman <jean-paul.saman@nxp.com>
 */
#include <linux/init.h>
#include <linux/stat.h>
#include <linux/kdev_t.h>
#include <linux/syscalls.h>

/*
 * Create a simple rootfs that is similar to the default initramfs
 */
static int __init default_rootfs(void)
{
	int err;

	err = ksys_mkdir((const char __user __force *) "/dev", 0755);
	if (err < 0)
		goto out;

	err = ksys_mknod((const char __user __force *) "/dev/console",
			S_IFCHR | S_IRUSR | S_IWUSR,
			new_encode_dev(MKDEV(5, 1)));
	if (err < 0)
		goto out;

	err = ksys_mkdir((const char __user __force *) "/root", 0700);
	if (err < 0)
		goto out;

	return 0;

out:
	printk(KERN_WARNING "Failed to create a rootfs\n");
	return err;
}
rootfs_initcall(default_rootfs);
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