blob: 910b43ad9b9472b8b7bf473437d10541704f742a (
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diff --git a/init/do_mounts.c b/init/do_mounts.c
index 46fe407..efc134c 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -25,6 +25,7 @@ int __initdata rd_doload; /* 1 = load RAM disk, 0 = don't load */
int root_mountflags = MS_RDONLY | MS_SILENT;
char * __initdata root_device_name;
static char __initdata saved_root_name[64];
+int __initdata root_wait;
dev_t ROOT_DEV;
@@ -216,6 +217,14 @@ static int __init root_dev_setup(char *line)
__setup("root=", root_dev_setup);
+static int __init rootwait_setup(char *line)
+{
+ root_wait = simple_strtol(line,NULL,0);
+ return 1;
+}
+
+__setup("rootwait=", rootwait_setup);
+
static char * __initdata root_mount_data;
static int __init root_data_setup(char *str)
{
@@ -438,11 +447,24 @@ void __init prepare_namespace(void)
root_device_name += 5;
}
- is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR;
-
if (initrd_load())
goto out;
+ /* wait for any asynchronous scanning to complete */
+ if ((ROOT_DEV == 0) && root_wait) {
+ printk(KERN_INFO "Waiting for root device %s...\n",
+ saved_root_name);
+ do {
+ while (driver_probe_done() != 0)
+ msleep(100);
+ ROOT_DEV = name_to_dev_t(saved_root_name);
+ if (ROOT_DEV == 0)
+ msleep(100);
+ } while (ROOT_DEV == 0);
+ }
+
+ is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR;
+
if (is_floppy && rd_doload && rd_load_disk(0))
ROOT_DEV = Root_RAM0;
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