2 files changed, 21 insertions, 0 deletions

diff --git a/mm/Makefile b/mm/Makefile
index e89acb090b4d..cf76be785add 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -12,6 +12,7 @@ obj-y			:= bootmem.o filemap.o mempool.o oom_kill.o fadvise.o \
                            readahead.o swap.o truncate.o vmscan.o shmem.o \
                            prio_tree.o util.o mmzone.o vmstat.o backing-dev.o \
                            page_isolation.o mm_init.o $(mmu-y)
+obj-y += init-mm.o
 
 obj-$(CONFIG_PROC_PAGE_MONITOR) += pagewalk.o
 obj-$(CONFIG_BOUNCE)    += bounce.o
diff --git a/mm/init-mm.c b/mm/init-mm.c
new file mode 100644
index 000000000000..57aba0da9668
--- /dev/null
+++ b/mm/init-mm.c
@@ -0,0 +1,20 @@
+#include <linux/mm_types.h>
+#include <linux/rbtree.h>
+#include <linux/rwsem.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/cpumask.h>
+
+#include <asm/atomic.h>
+#include <asm/pgtable.h>
+
+struct mm_struct init_mm = {
+        .mm_rb          = RB_ROOT,
+        .pgd            = swapper_pg_dir,
+        .mm_users       = ATOMIC_INIT(2),
+        .mm_count       = ATOMIC_INIT(1),
+        .mmap_sem       = __RWSEM_INITIALIZER(init_mm.mmap_sem),
+        .page_table_lock =  __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
+        .mmlist         = LIST_HEAD_INIT(init_mm.mmlist),
+        .cpu_vm_mask    = CPU_MASK_ALL,
+};