1 files changed, 27 insertions, 14 deletions

diff --git a/init/main.c b/init/main.c
index 9d759d68d7a0..5616661eac01 100644
--- a/init/main.c
+++ b/init/main.c
@@ -534,6 +534,16 @@ void __init __weak thread_info_cache_init(void)
 {
 }
 
+/*
+ * Set up kernel memory allocators
+ */
+static void __init mm_init(void)
+{
+        mem_init();
+        kmem_cache_init();
+        vmalloc_init();
+}
+
 asmlinkage void __init start_kernel(void)
 {
         char * command_line;
@@ -575,6 +585,23 @@ asmlinkage void __init start_kernel(void)
         setup_nr_cpu_ids();
         smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
 
+        build_all_zonelists();
+        page_alloc_init();
+
+        printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
+        parse_early_param();
+        parse_args("Booting kernel", static_command_line, __start___param,
+                   __stop___param - __start___param,
+                   &unknown_bootoption);
+        /*
+         * These use large bootmem allocations and must precede
+         * kmem_cache_init()
+         */
+        pidhash_init();
+        vfs_caches_init_early();
+        sort_main_extable();
+        trap_init();
+        mm_init();
         /*
          * Set up the scheduler prior starting any interrupts (such as the
          * timer interrupt). Full topology setup happens at smp_init()
@@ -586,26 +613,16 @@ asmlinkage void __init start_kernel(void)
          * fragile until we cpu_idle() for the first time.
          */
         preempt_disable();
-        build_all_zonelists();
-        page_alloc_init();
-        printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
-        parse_early_param();
-        parse_args("Booting kernel", static_command_line, __start___param,
-                   __stop___param - __start___param,
-                   &unknown_bootoption);
         if (!irqs_disabled()) {
                 printk(KERN_WARNING "start_kernel(): bug: interrupts were "
                                 "enabled *very* early, fixing it\n");
                 local_irq_disable();
         }
-        sort_main_extable();
-        trap_init();
         rcu_init();
         /* init some links before init_ISA_irqs() */
         early_irq_init();
         init_IRQ();
         prio_tree_init();
-        pidhash_init();
         init_timers();
         hrtimers_init();
         softirq_init();
@@ -647,14 +664,10 @@ asmlinkage void __init start_kernel(void)
                 initrd_start = 0;
         }
 #endif
-        vmalloc_init();
-        vfs_caches_init_early();
         cpuset_init_early();
         page_cgroup_init();
-        mem_init();
         enable_debug_pagealloc();
         cpu_hotplug_init();
-        kmem_cache_init();
         kmemtrace_init();
         kmemleak_init();
         debug_objects_mem_init();