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|
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -136,6 +136,12 @@ SECTIONS
INITCALLS
__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
@@ -474,12 +474,14 @@
*(.initcall4s.init) \
*(.initcall5.init) \
*(.initcall5s.init) \
- *(.initcallrootfs.init) \
*(.initcall6.init) \
*(.initcall6s.init) \
*(.initcall7.init) \
*(.initcall7s.init)
+#define INITCALLS_ROOT \
+ *(.initcallrootfs.init)
+
/**
* PERCPU_VADDR - define output section for percpu area
* @vaddr: explicit base address (optional)
--- 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)
{
@@ -365,23 +357,6 @@ 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
@@ -76,6 +76,7 @@
#ifdef CONFIG_X86_LOCAL_APIC
#include <asm/smp.h>
#endif
+#include "do_mounts.h"
static int kernel_init(void *);
@@ -753,12 +754,13 @@ 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 */
@@ -780,7 +782,7 @@ static void __init do_basic_setup(void)
usermodehelper_init();
driver_init();
init_irq_proc();
- do_initcalls();
+ do_initcalls(__early_initcall_end, __initcall_end);
}
static void __init do_pre_smp_initcalls(void)
@@ -841,6 +843,13 @@ 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();
@@ -880,7 +889,16 @@ 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);
+ do_initcalls(__root_initcall_start, __root_initcall_end);
+ md_run_setup();
+ prepare_namespace();
}
/*
|
