Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

[cascardo/linux.git] / init / main.c

diff --git a/init/main.c b/init/main.c
index 106e02d..40aaa02 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -149,6 +149,20 @@ static int __init nosmp(char *str)
 
 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);
@@ -416,7 +430,9 @@ static noinline void __init_refok rest_init(void)
        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();
 
        /*
@@ -584,6 +600,7 @@ asmlinkage void __init start_kernel(void)
                local_irq_disable();
        }
        rcu_init();
+       radix_tree_init();
        /* init some links before init_ISA_irqs() */
        early_irq_init();
        init_IRQ();
@@ -657,7 +674,6 @@ asmlinkage void __init start_kernel(void)
        proc_caches_init();
        buffer_init();
        key_init();
-       radix_tree_init();
        security_init();
        vfs_caches_init(totalram_pages);
        signals_init();