kernel-ark/arch/um/kernel/initrd_kern.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

60 lines
1.4 KiB
C

/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#include "linux/init.h"
#include "linux/bootmem.h"
#include "linux/initrd.h"
#include "asm/types.h"
#include "user_util.h"
#include "kern_util.h"
#include "initrd.h"
#include "init.h"
#include "os.h"
/* Changed by uml_initrd_setup, which is a setup */
static char *initrd __initdata = NULL;
static int __init read_initrd(void)
{
void *area;
long long size;
int err;
if(initrd == NULL) return 0;
err = os_file_size(initrd, &size);
if(err) return 0;
area = alloc_bootmem(size);
if(area == NULL) return 0;
if(load_initrd(initrd, area, size) == -1) return 0;
initrd_start = (unsigned long) area;
initrd_end = initrd_start + size;
return 0;
}
__uml_postsetup(read_initrd);
static int __init uml_initrd_setup(char *line, int *add)
{
initrd = line;
return 0;
}
__uml_setup("initrd=", uml_initrd_setup,
"initrd=<initrd image>\n"
" This is used to boot UML from an initrd image. The argument is the\n"
" name of the file containing the image.\n\n"
);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/