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Diffstat (limited to 'init/main.c')
-rw-r--r--init/main.c39
1 files changed, 32 insertions, 7 deletions
diff --git a/init/main.c b/init/main.c
index ff410063e4e..f142d403534 100644
--- a/init/main.c
+++ b/init/main.c
@@ -123,6 +123,7 @@ extern void softirq_init(void);
char saved_command_line[COMMAND_LINE_SIZE];
static char *execute_command;
+static char *ramdisk_execute_command;
/* Setup configured maximum number of CPUs to activate */
static unsigned int max_cpus = NR_CPUS;
@@ -297,6 +298,18 @@ static int __init init_setup(char *str)
}
__setup("init=", init_setup);
+static int __init rdinit_setup(char *str)
+{
+ unsigned int i;
+
+ ramdisk_execute_command = str;
+ /* See "auto" comment in init_setup */
+ for (i = 1; i < MAX_INIT_ARGS; i++)
+ argv_init[i] = NULL;
+ return 1;
+}
+__setup("rdinit=", rdinit_setup);
+
extern void setup_arch(char **);
#ifndef CONFIG_SMP
@@ -614,6 +627,7 @@ static void do_pre_smp_initcalls(void)
migration_init();
#endif
spawn_ksoftirqd();
+ spawn_softlockup_task();
}
static void run_init_process(char *init_filename)
@@ -680,10 +694,14 @@ static int init(void * unused)
* check if there is an early userspace init. If yes, let it do all
* the work
*/
- if (sys_access((const char __user *) "/init", 0) == 0)
- execute_command = "/init";
- else
+
+ if (!ramdisk_execute_command)
+ ramdisk_execute_command = "/init";
+
+ if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
+ ramdisk_execute_command = NULL;
prepare_namespace();
+ }
/*
* Ok, we have completed the initial bootup, and
@@ -700,17 +718,24 @@ static int init(void * unused)
(void) sys_dup(0);
(void) sys_dup(0);
-
+
+ if (ramdisk_execute_command) {
+ run_init_process(ramdisk_execute_command);
+ printk(KERN_WARNING "Failed to execute %s\n",
+ ramdisk_execute_command);
+ }
+
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
-
- if (execute_command)
+ if (execute_command) {
run_init_process(execute_command);
-
+ printk(KERN_WARNING "Failed to execute %s. Attempting "
+ "defaults...\n", execute_command);
+ }
run_init_process("/sbin/init");
run_init_process("/etc/init");
run_init_process("/bin/init");