early_param("nosmp", nosmp);
+/* this is hard limit */
+static int __init nrcpus(char *str)
+{
+ int nr_cpus;
+
+ get_option(&str, &nr_cpus);
+ if (nr_cpus > 0 && nr_cpus < nr_cpu_ids)
+ nr_cpu_ids = nr_cpus;
+
+ return 0;
+}
+
+early_param("nr_cpus", nrcpus);
+
static int __init maxcpus(char *str)
{
get_option(&str, &setup_max_cpus);
early_param("maxcpus", maxcpus);
#else
-const unsigned int setup_max_cpus = NR_CPUS;
+static const unsigned int setup_max_cpus = NR_CPUS;
#endif
/*
kernel_thread(kernel_init, NULL, CLONE_FS | CLONE_SIGHAND);
numa_default_policy();
pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES);
+ rcu_read_lock();
kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
+ rcu_read_unlock();
unlock_kernel();
/*
local_irq_disable();
}
rcu_init();
+ radix_tree_init();
/* init some links before init_ISA_irqs() */
early_irq_init();
init_IRQ();
local_irq_enable();
/* Interrupts are enabled now so all GFP allocations are safe. */
- set_gfp_allowed_mask(__GFP_BITS_MASK);
+ gfp_allowed_mask = __GFP_BITS_MASK;
kmem_cache_init_late();
proc_caches_init();
buffer_init();
key_init();
- radix_tree_init();
security_init();
vfs_caches_init(totalram_pages);
signals_init();
run_init_process("/bin/init");
run_init_process("/bin/sh");
- panic("No init found. Try passing init= option to kernel.");
+ panic("No init found. Try passing init= option to kernel. "
+ "See Linux Documentation/init.txt for guidance.");
}
static int __init kernel_init(void * unused)