diff options
Diffstat (limited to 'arch/um/kernel/initrd.c')
-rw-r--r-- | arch/um/kernel/initrd.c | 48 |
1 files changed, 5 insertions, 43 deletions
diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c index c1981ffb7179..47b8cb1a1156 100644 --- a/arch/um/kernel/initrd.c +++ b/arch/um/kernel/initrd.c @@ -10,37 +10,21 @@ #include <init.h> #include <os.h> +#include "um_arch.h" + /* Changed by uml_initrd_setup, which is a setup */ static char *initrd __initdata = NULL; -static int load_initrd(char *filename, void *buf, int size); int __init read_initrd(void) { + unsigned long long size; void *area; - long long size; - int err; - - if (initrd == NULL) - return 0; - err = os_file_size(initrd, &size); - if (err) + if (!initrd) return 0; - /* - * This is necessary because alloc_bootmem craps out if you - * ask for no memory. - */ - if (size == 0) { - printk(KERN_ERR "\"%s\" is a zero-size initrd\n", initrd); - return 0; - } - - area = memblock_alloc(size, SMP_CACHE_BYTES); + area = uml_load_file(initrd, &size); if (!area) - panic("%s: Failed to allocate %llu bytes\n", __func__, size); - - if (load_initrd(initrd, area, size) == -1) return 0; initrd_start = (unsigned long) area; @@ -59,25 +43,3 @@ __uml_setup("initrd=", uml_initrd_setup, " This is used to boot UML from an initrd image. The argument is the\n" " name of the file containing the image.\n\n" ); - -static int load_initrd(char *filename, void *buf, int size) -{ - int fd, n; - - fd = os_open_file(filename, of_read(OPENFLAGS()), 0); - if (fd < 0) { - printk(KERN_ERR "Opening '%s' failed - err = %d\n", filename, - -fd); - return -1; - } - n = os_read_file(fd, buf, size); - if (n != size) { - printk(KERN_ERR "Read of %d bytes from '%s' failed, " - "err = %d\n", size, - filename, -n); - return -1; - } - - os_close_file(fd); - return 0; -} |