#include <linux/kallsyms.h>
#include <linux/writeback.h>
#include <linux/cpu.h>
+#include <linux/cpuset.h>
#include <linux/efi.h>
#include <linux/unistd.h>
#include <linux/rmap.h>
#error Sorry, your GCC is too old. It builds incorrect kernels.
#endif
-extern char *linux_banner;
-
static int init(void *);
extern void init_IRQ(void);
enum system_states system_state;
EXPORT_SYMBOL(system_state);
-/*
- * The kernel_magic value represents the address of _end, which allows
- * namelist tools to "match" each other respectively. That way a tool
- * that looks at /dev/mem can verify that it is using the right System.map
- * file -- if kernel_magic doesn't equal the namelist value of _end,
- * something's wrong.
- */
-extern unsigned long _end;
-unsigned long *kernel_magic = &_end;
-
/*
* Boot command-line arguments
*/
-#define MAX_INIT_ARGS 32
-#define MAX_INIT_ENVS 32
+#define MAX_INIT_ARGS CONFIG_INIT_ENV_ARG_LIMIT
+#define MAX_INIT_ENVS CONFIG_INIT_ENV_ARG_LIMIT
extern void time_init(void);
/* Default late time init is NULL. archs can override this later. */
char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
static const char *panic_later, *panic_param;
+extern struct obs_kernel_param __setup_start[], __setup_end[];
+
static int __init obsolete_checksetup(char *line)
{
struct obs_kernel_param *p;
- extern struct obs_kernel_param __setup_start, __setup_end;
- p = &__setup_start;
+ p = __setup_start;
do {
int n = strlen(p->str);
if (!strncmp(line, p->str, n)) {
return 1;
}
p++;
- } while (p < &__setup_end);
+ } while (p < __setup_end);
return 0;
}
-static unsigned long preset_lpj;
-static int __init lpj_setup(char *str)
-{
- preset_lpj = simple_strtoul(str,NULL,0);
- return 1;
-}
-
-__setup("lpj=", lpj_setup);
-
/*
* This should be approx 2 Bo*oMips to start (note initial shift), and will
* still work even if initially too large, it will just take slightly longer
EXPORT_SYMBOL(loops_per_jiffy);
-/*
- * This is the number of bits of precision for the loops_per_jiffy. Each
- * bit takes on average 1.5/HZ seconds. This (like the original) is a little
- * better than 1%
- */
-#define LPS_PREC 8
-
-void __devinit calibrate_delay(void)
-{
- unsigned long ticks, loopbit;
- int lps_precision = LPS_PREC;
-
- if (preset_lpj) {
- loops_per_jiffy = preset_lpj;
- printk("Calibrating delay loop (skipped)... "
- "%lu.%02lu BogoMIPS preset\n",
- loops_per_jiffy/(500000/HZ),
- (loops_per_jiffy/(5000/HZ)) % 100);
- } else {
- loops_per_jiffy = (1<<12);
-
- printk(KERN_DEBUG "Calibrating delay loop... ");
- while ((loops_per_jiffy <<= 1) != 0) {
- /* wait for "start of" clock tick */
- ticks = jiffies;
- while (ticks == jiffies)
- /* nothing */;
- /* Go .. */
- ticks = jiffies;
- __delay(loops_per_jiffy);
- ticks = jiffies - ticks;
- if (ticks)
- break;
- }
-
- /*
- * Do a binary approximation to get loops_per_jiffy set to
- * equal one clock (up to lps_precision bits)
- */
- loops_per_jiffy >>= 1;
- loopbit = loops_per_jiffy;
- while (lps_precision-- && (loopbit >>= 1)) {
- loops_per_jiffy |= loopbit;
- ticks = jiffies;
- while (ticks == jiffies)
- /* nothing */;
- ticks = jiffies;
- __delay(loops_per_jiffy);
- if (jiffies != ticks) /* longer than 1 tick */
- loops_per_jiffy &= ~loopbit;
- }
-
- /* Round the value and print it */
- printk("%lu.%02lu BogoMIPS (lpj=%lu)\n",
- loops_per_jiffy/(500000/HZ),
- (loops_per_jiffy/(5000/HZ)) % 100,
- loops_per_jiffy);
- }
-
-}
-
static int __init debug_kernel(char *str)
{
if (*str)
__setup("debug", debug_kernel);
__setup("quiet", quiet_kernel);
+static int __init loglevel(char *str)
+{
+ get_option(&str, &console_loglevel);
+ return 1;
+}
+
+__setup("loglevel=", loglevel);
+
/*
* Unknown boot options get handed to init, unless they look like
* failed parameters
__setup("init=", init_setup);
extern void setup_arch(char **);
-extern void cpu_idle(void);
#ifndef CONFIG_SMP
}
/* Any cleanup work */
- printk("Brought up %ld CPUs\n", (long)num_online_cpus());
+ printk(KERN_INFO "Brought up %ld CPUs\n", (long)num_online_cpus());
smp_cpus_done(max_cpus);
#if 0
/* Get other processors into their bootup holding patterns. */
- smp_threads_ready=1;
smp_commence();
#endif
}
kernel_thread(init, NULL, CLONE_FS | CLONE_SIGHAND);
numa_default_policy();
unlock_kernel();
- cpu_idle();
+ preempt_enable_no_resched();
+ cpu_idle();
}
/* Check for early params. */
static int __init do_early_param(char *param, char *val)
{
struct obs_kernel_param *p;
- extern struct obs_kernel_param __setup_start, __setup_end;
- for (p = &__setup_start; p < &__setup_end; p++) {
+ for (p = __setup_start; p < __setup_end; p++) {
if (p->early && strcmp(param, p->str) == 0) {
if (p->setup_func(val) != 0)
printk(KERN_WARNING
*/
lock_kernel();
page_address_init();
+ printk(KERN_NOTICE);
printk(linux_banner);
setup_arch(&command_line);
setup_per_cpu_areas();
* time - but meanwhile we still have a functioning scheduler.
*/
sched_init();
+ /*
+ * Disable preemption - early bootup scheduling is extremely
+ * fragile until we cpu_idle() for the first time.
+ */
+ preempt_disable();
build_all_zonelists();
page_alloc_init();
- printk("Kernel command line: %s\n", saved_command_line);
+ printk(KERN_NOTICE "Kernel command line: %s\n", saved_command_line);
parse_early_param();
parse_args("Booting kernel", command_line, __start___param,
__stop___param - __start___param,
proc_caches_init();
buffer_init();
unnamed_dev_init();
+ key_init();
security_init();
vfs_caches_init(num_physpages);
radix_tree_init();
#ifdef CONFIG_PROC_FS
proc_root_init();
#endif
+ cpuset_init();
+
check_bugs();
acpi_early_init(); /* before LAPIC and SMP init */
struct task_struct *child_reaper = &init_task;
-extern initcall_t __initcall_start, __initcall_end;
+extern initcall_t __initcall_start[], __initcall_end[];
static void __init do_initcalls(void)
{
initcall_t *call;
int count = preempt_count();
- for (call = &__initcall_start; call < &__initcall_end; call++) {
+ for (call = __initcall_start; call < __initcall_end; call++) {
char *msg;
if (initcall_debug) {
local_irq_enable();
}
if (msg) {
- printk("error in initcall at 0x%p: "
+ printk(KERN_WARNING "error in initcall at 0x%p: "
"returned with %s\n", *call, msg);
}
}
/* drivers will send hotplug events */
init_workqueues();
usermodehelper_init();
- key_init();
driver_init();
#ifdef CONFIG_SYSCTL
static int init(void * unused)
{
lock_kernel();
+ /*
+ * init can run on any cpu.
+ */
+ set_cpus_allowed(current, CPU_MASK_ALL);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
fixup_cpu_present_map();
smp_init();
+ cpuset_init_smp();
+
/*
* Do this before initcalls, because some drivers want to access
* firmware files.
numa_default_policy();
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- printk("Warning: unable to open an initial console.\n");
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
(void) sys_dup(0);
(void) sys_dup(0);
panic("No init found. Try passing init= option to kernel.");
}
-
-static int early_param_test(char *rest)
-{
- printk("early_parm_test: %s\n", rest ?: "(null)");
- return rest ? 0 : -EINVAL;
-}
-early_param("testsetup", early_param_test);
-static int early_setup_test(char *rest)
-{
- printk("early_setup_test: %s\n", rest ?: "(null)");
- return 0;
-}
-__setup("testsetup_long", early_setup_test);
git://git.onelab.eu / linux-2.6.git / blobdiff