211 lines
5.5 KiB
Diff
211 lines
5.5 KiB
Diff
--- a/arch/x86/kernel/vmlinux.lds.S
|
|
+++ b/arch/x86/kernel/vmlinux.lds.S
|
|
@@ -244,6 +244,12 @@ SECTIONS
|
|
__initcall_end = .;
|
|
}
|
|
|
|
+ .root_initcall.init : AT(ADDR(.root_initcall.init) - LOAD_OFFSET) {
|
|
+ __root_initcall_start = .;
|
|
+ INITCALLS_ROOT
|
|
+ __root_initcall_end = .;
|
|
+ }
|
|
+
|
|
.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
|
|
__con_initcall_start = .;
|
|
*(.con_initcall.init)
|
|
--- a/drivers/mtd/devices/block2mtd.c
|
|
+++ b/drivers/mtd/devices/block2mtd.c
|
|
@@ -18,10 +18,18 @@
|
|
#include <linux/buffer_head.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/mount.h>
|
|
+#include <linux/list.h>
|
|
+#include <linux/delay.h>
|
|
|
|
#define ERROR(fmt, args...) printk(KERN_ERR "block2mtd: " fmt "\n" , ## args)
|
|
#define INFO(fmt, args...) printk(KERN_INFO "block2mtd: " fmt "\n" , ## args)
|
|
|
|
+struct retry {
|
|
+ struct list_head list;
|
|
+ const char *val;
|
|
+};
|
|
+
|
|
+static LIST_HEAD(retry_list);
|
|
|
|
/* Info for the block device */
|
|
struct block2mtd_dev {
|
|
@@ -33,10 +41,34 @@ struct block2mtd_dev {
|
|
char devname[0];
|
|
};
|
|
|
|
+static int block2mtd_setup2(const char *val);
|
|
|
|
/* Static info about the MTD, used in cleanup_module */
|
|
static LIST_HEAD(blkmtd_device_list);
|
|
|
|
+static int add_retry(const char *val) {
|
|
+ struct retry *r = kmalloc(sizeof(struct retry), GFP_KERNEL);
|
|
+
|
|
+ INIT_LIST_HEAD(&r->list);
|
|
+ r->val = val;
|
|
+ list_add(&r->list, &retry_list);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int __init process_retries(void) {
|
|
+ struct list_head *p, *tmp;
|
|
+
|
|
+ list_for_each_safe(p, tmp, &retry_list) {
|
|
+ struct retry *r = list_entry(p, struct retry, list);
|
|
+ block2mtd_setup2(r->val);
|
|
+ msleep(100);
|
|
+ list_del(p);
|
|
+ kfree(r);
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+rootfs_initcall(process_retries);
|
|
|
|
static struct page *page_read(struct address_space *mapping, int index)
|
|
{
|
|
@@ -511,7 +543,9 @@ static int block2mtd_setup2(const char *
|
|
if (token[2] && (strlen(token[2]) + 1 > 80))
|
|
parse_err("mtd device name too long");
|
|
|
|
- add_device(name, erase_size, token[2]);
|
|
+ if (add_device(name, erase_size, token[2]) == NULL) {
|
|
+ add_retry(val);
|
|
+ }
|
|
|
|
return 0;
|
|
}
|
|
--- a/include/asm-generic/vmlinux.lds.h
|
|
+++ b/include/asm-generic/vmlinux.lds.h
|
|
@@ -622,12 +622,14 @@
|
|
*(.initcall4s.init) \
|
|
*(.initcall5.init) \
|
|
*(.initcall5s.init) \
|
|
- *(.initcallrootfs.init) \
|
|
*(.initcall6.init) \
|
|
*(.initcall6s.init) \
|
|
*(.initcall7.init) \
|
|
*(.initcall7s.init)
|
|
|
|
+#define INITCALLS_ROOT \
|
|
+ *(.initcallrootfs.init)
|
|
+
|
|
#define INIT_CALLS \
|
|
VMLINUX_SYMBOL(__initcall_start) = .; \
|
|
INITCALLS \
|
|
--- a/init/do_mounts.c
|
|
+++ b/init/do_mounts.c
|
|
@@ -176,16 +176,8 @@ static int __init fs_names_setup(char *s
|
|
return 1;
|
|
}
|
|
|
|
-static unsigned int __initdata root_delay;
|
|
-static int __init root_delay_setup(char *str)
|
|
-{
|
|
- root_delay = simple_strtoul(str, NULL, 0);
|
|
- return 1;
|
|
-}
|
|
-
|
|
__setup("rootflags=", root_data_setup);
|
|
__setup("rootfstype=", fs_names_setup);
|
|
-__setup("rootdelay=", root_delay_setup);
|
|
|
|
static void __init get_fs_names(char *page)
|
|
{
|
|
@@ -366,23 +358,6 @@ void __init prepare_namespace(void)
|
|
{
|
|
int is_floppy;
|
|
|
|
- if (root_delay) {
|
|
- printk(KERN_INFO "Waiting %dsec before mounting root device...\n",
|
|
- root_delay);
|
|
- ssleep(root_delay);
|
|
- }
|
|
-
|
|
- /*
|
|
- * wait for the known devices to complete their probing
|
|
- *
|
|
- * Note: this is a potential source of long boot delays.
|
|
- * For example, it is not atypical to wait 5 seconds here
|
|
- * for the touchpad of a laptop to initialize.
|
|
- */
|
|
- wait_for_device_probe();
|
|
-
|
|
- md_run_setup();
|
|
-
|
|
if (saved_root_name[0]) {
|
|
root_device_name = saved_root_name;
|
|
if (!strncmp(root_device_name, "mtd", 3) ||
|
|
--- a/init/main.c
|
|
+++ b/init/main.c
|
|
@@ -79,6 +79,7 @@
|
|
#ifdef CONFIG_X86_LOCAL_APIC
|
|
#include <asm/smp.h>
|
|
#endif
|
|
+#include "do_mounts.h"
|
|
|
|
static int kernel_init(void *);
|
|
|
|
@@ -784,12 +785,13 @@ int do_one_initcall(initcall_t fn)
|
|
|
|
|
|
extern initcall_t __initcall_start[], __initcall_end[], __early_initcall_end[];
|
|
+extern initcall_t __root_initcall_start[], __root_initcall_end[];
|
|
|
|
-static void __init do_initcalls(void)
|
|
+static void __init do_initcalls(initcall_t *start, initcall_t *end)
|
|
{
|
|
initcall_t *call;
|
|
|
|
- for (call = __early_initcall_end; call < __initcall_end; call++)
|
|
+ for (call = start; call < end; call++)
|
|
do_one_initcall(*call);
|
|
|
|
/* Make sure there is no pending stuff from the initcall sequence */
|
|
@@ -812,7 +814,7 @@ static void __init do_basic_setup(void)
|
|
driver_init();
|
|
init_irq_proc();
|
|
do_ctors();
|
|
- do_initcalls();
|
|
+ do_initcalls(__early_initcall_end, __initcall_end);
|
|
}
|
|
|
|
static void __init do_pre_smp_initcalls(void)
|
|
@@ -873,6 +875,13 @@ static noinline int init_post(void)
|
|
panic("No init found. Try passing init= option to kernel.");
|
|
}
|
|
|
|
+static unsigned int __initdata root_delay;
|
|
+static int __init root_delay_setup(char *str)
|
|
+{
|
|
+ root_delay = simple_strtoul(str, NULL, 0);
|
|
+ return 1;
|
|
+}
|
|
+__setup("rootdelay=", root_delay_setup);
|
|
static int __init kernel_init(void * unused)
|
|
{
|
|
lock_kernel();
|
|
@@ -917,7 +926,16 @@ static int __init kernel_init(void * unu
|
|
|
|
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
|
|
ramdisk_execute_command = NULL;
|
|
- prepare_namespace();
|
|
+ if (root_delay) {
|
|
+ printk(KERN_INFO "Waiting %desc before mounting root device...\n",
|
|
+ root_delay);
|
|
+ ssleep(root_delay);
|
|
+ }
|
|
+ while (driver_probe_done() != 0)
|
|
+ msleep(100);
|
|
+ md_run_setup();
|
|
+ do_initcalls(__root_initcall_start, __root_initcall_end);
|
|
+ prepare_namespace();
|
|
}
|
|
|
|
/*
|