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authorChristoph Hellwig <hch@lst.de>2020-06-04 10:23:14 +0200
committerChristoph Hellwig <hch@lst.de>2020-07-30 08:22:33 +0200
commitc8376994c86c4eb02b9a1032cd3a8d44c911d671 (patch)
tree29415bbfe069f70c1212eaeb9d8250873559e9e3 /init
parent7e0adbfc20c50b021e425662834a492f958efee7 (diff)
initrd: remove support for multiple floppies
Remove the special handling for multiple floppies in the initrd code. No one should be using floppies for booting these days. (famous last words..) Includes a spelling fix from Colin Ian King <colin.king@canonical.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/do_mounts.c69
-rw-r--r--init/do_mounts.h1
-rw-r--r--init/do_mounts_rd.c20
3 files changed, 12 insertions, 78 deletions
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 1a4dfa17fb28..a7f22cf58c7e 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -28,8 +28,6 @@
#include "do_mounts.h"
-int __initdata rd_doload; /* 1 = load RAM disk, 0 = don't load */
-
int root_mountflags = MS_RDONLY | MS_SILENT;
static char * __initdata root_device_name;
static char __initdata saved_root_name[64];
@@ -39,7 +37,7 @@ dev_t ROOT_DEV;
static int __init load_ramdisk(char *str)
{
- rd_doload = simple_strtol(str,NULL,0) & 3;
+ pr_warn("ignoring the deprecated load_ramdisk= option\n");
return 1;
}
__setup("load_ramdisk=", load_ramdisk);
@@ -553,66 +551,20 @@ static int __init mount_cifs_root(void)
}
#endif
-#if defined(CONFIG_BLK_DEV_RAM) || defined(CONFIG_BLK_DEV_FD)
-void __init change_floppy(char *fmt, ...)
-{
- struct termios termios;
- char buf[80];
- char c;
- int fd;
- va_list args;
- va_start(args, fmt);
- vsprintf(buf, fmt, args);
- va_end(args);
- fd = ksys_open("/dev/root", O_RDWR | O_NDELAY, 0);
- if (fd >= 0) {
- ksys_ioctl(fd, FDEJECT, 0);
- ksys_close(fd);
- }
- printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
- fd = ksys_open("/dev/console", O_RDWR, 0);
- if (fd >= 0) {
- ksys_ioctl(fd, TCGETS, (long)&termios);
- termios.c_lflag &= ~ICANON;
- ksys_ioctl(fd, TCSETSF, (long)&termios);
- ksys_read(fd, &c, 1);
- termios.c_lflag |= ICANON;
- ksys_ioctl(fd, TCSETSF, (long)&termios);
- ksys_close(fd);
- }
-}
-#endif
-
void __init mount_root(void)
{
#ifdef CONFIG_ROOT_NFS
if (ROOT_DEV == Root_NFS) {
- if (mount_nfs_root())
- return;
-
- printk(KERN_ERR "VFS: Unable to mount root fs via NFS, trying floppy.\n");
- ROOT_DEV = Root_FD0;
+ if (!mount_nfs_root())
+ printk(KERN_ERR "VFS: Unable to mount root fs via NFS.\n");
+ return;
}
#endif
#ifdef CONFIG_CIFS_ROOT
if (ROOT_DEV == Root_CIFS) {
- if (mount_cifs_root())
- return;
-
- printk(KERN_ERR "VFS: Unable to mount root fs via SMB, trying floppy.\n");
- ROOT_DEV = Root_FD0;
- }
-#endif
-#ifdef CONFIG_BLK_DEV_FD
- if (MAJOR(ROOT_DEV) == FLOPPY_MAJOR) {
- /* rd_doload is 2 for a dual initrd/ramload setup */
- if (rd_doload==2) {
- if (rd_load_disk(1)) {
- ROOT_DEV = Root_RAM1;
- root_device_name = NULL;
- }
- } else
- change_floppy("root floppy");
+ if (!mount_cifs_root())
+ printk(KERN_ERR "VFS: Unable to mount root fs via SMB.\n");
+ return;
}
#endif
#ifdef CONFIG_BLOCK
@@ -631,8 +583,6 @@ void __init mount_root(void)
*/
void __init prepare_namespace(void)
{
- int is_floppy;
-
if (root_delay) {
printk(KERN_INFO "Waiting %d sec before mounting root device...\n",
root_delay);
@@ -675,11 +625,6 @@ void __init prepare_namespace(void)
async_synchronize_full();
}
- is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR;
-
- if (is_floppy && rd_doload && rd_load_disk(0))
- ROOT_DEV = Root_RAM0;
-
mount_root();
out:
devtmpfs_mount();
diff --git a/init/do_mounts.h b/init/do_mounts.h
index 50d6c8941e15..c855b3f0e06d 100644
--- a/init/do_mounts.h
+++ b/init/do_mounts.h
@@ -9,7 +9,6 @@
#include <linux/major.h>
#include <linux/root_dev.h>
-void change_floppy(char *fmt, ...);
void mount_block_root(char *name, int flags);
void mount_root(void);
extern int root_mountflags;
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index 32fb049d18f9..0a5c3ebee61d 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -15,11 +15,9 @@
#include <linux/decompress/generic.h>
-int __initdata rd_prompt = 1;/* 1 = prompt for RAM disk, 0 = don't prompt */
-
static int __init prompt_ramdisk(char *str)
{
- rd_prompt = simple_strtol(str,NULL,0) & 1;
+ pr_warn("ignoring the deprecated prompt_ramdisk= option\n");
return 1;
}
__setup("prompt_ramdisk=", prompt_ramdisk);
@@ -178,7 +176,7 @@ int __init rd_load_image(char *from)
int res = 0;
int in_fd, out_fd;
unsigned long rd_blocks, devblocks;
- int nblocks, i, disk;
+ int nblocks, i;
char *buf = NULL;
unsigned short rotate = 0;
decompress_fn decompressor = NULL;
@@ -243,21 +241,15 @@ int __init rd_load_image(char *from)
printk(KERN_NOTICE "RAMDISK: Loading %dKiB [%ld disk%s] into ram disk... ",
nblocks, ((nblocks-1)/devblocks)+1, nblocks>devblocks ? "s" : "");
- for (i = 0, disk = 1; i < nblocks; i++) {
+ for (i = 0; i < nblocks; i++) {
if (i && (i % devblocks == 0)) {
- pr_cont("done disk #%d.\n", disk++);
+ pr_cont("done disk #1.\n");
rotate = 0;
if (ksys_close(in_fd)) {
printk("Error closing the disk.\n");
goto noclose_input;
}
- change_floppy("disk #%d", disk);
- in_fd = ksys_open(from, O_RDONLY, 0);
- if (in_fd < 0) {
- printk("Error opening disk.\n");
- goto noclose_input;
- }
- printk("Loading disk #%d... ", disk);
+ break;
}
ksys_read(in_fd, buf, BLOCK_SIZE);
ksys_write(out_fd, buf, BLOCK_SIZE);
@@ -284,8 +276,6 @@ out:
int __init rd_load_disk(int n)
{
- if (rd_prompt)
- change_floppy("root floppy disk to be loaded into RAM disk");
create_dev("/dev/root", ROOT_DEV);
create_dev("/dev/ram", MKDEV(RAMDISK_MAJOR, n));
return rd_load_image("/dev/root");