init: introduce mm_init()

As suggested by Christoph Lameter, introduce mm_init() now that we initialize
all the kernel memory allocations together.

Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

diff --git a/init/main.c b/init/main.c
index 6d38f96..7917695 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -533,6 +533,16 @@ 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;
@@ -590,12 +600,7 @@ asmlinkage void __init start_kernel(void)
        vfs_caches_init_early();
        sort_main_extable();
        trap_init();
-       /*
-        * Set up kernel memory allocators
-        */
-       mem_init();
-       kmem_cache_init();
-       vmalloc_init();
+       mm_init();
        /*
         * Set up the scheduler prior starting any interrupts (such as the
         * timer interrupt). Full topology setup happens at smp_init()