diff -urpN source.rhel6//block/Kconfig source/block/Kconfig
--- source.rhel6//block/Kconfig	2012-11-21 12:24:27.625510977 +0100
+++ source/block/Kconfig	2012-11-21 16:09:02.796206772 +0100
@@ -99,6 +99,8 @@ config BLK_DEV_THROTTLING
 
 	See Documentation/cgroups/blkio-controller.txt for more information.
 
+source block/mars/kernel/Kconfig
+
 endif # BLOCK
 
 config BLOCK_COMPAT
diff -urpN source.rhel6//block/Makefile source/block/Makefile
--- source.rhel6//block/Makefile	2012-11-21 12:24:27.625510977 +0100
+++ source/block/Makefile	2012-11-21 16:09:55.384556249 +0100
@@ -18,3 +18,6 @@ obj-$(CONFIG_IOSCHED_CFQ)	+= cfq-iosched
 
 obj-$(CONFIG_BLOCK_COMPAT)	+= compat_ioctl.o
 obj-$(CONFIG_BLK_DEV_INTEGRITY)	+= blk-integrity.o
+
+obj-$(CONFIG_MARS)             += mars/kernel/
+
diff -urpN source.rhel6//fs/aio.c source/fs/aio.c
--- source.rhel6//fs/aio.c	2012-11-21 12:24:35.721563886 +0100
+++ source/fs/aio.c	2012-11-21 16:13:54.634146459 +0100
@@ -1304,6 +1304,8 @@ out:
 	return ret;
 }
 
+EXPORT_SYMBOL(sys_io_setup);
+
 /* sys_io_destroy:
  *	Destroy the aio_context specified.  May cancel any outstanding 
  *	AIOs and block on completion.  Will fail with -ENOSYS if not
@@ -1321,6 +1323,8 @@ SYSCALL_DEFINE1(io_destroy, aio_context_
 	return -EINVAL;
 }
 
+EXPORT_SYMBOL(sys_io_destroy);
+
 static void aio_advance_iovec(struct kiocb *iocb, ssize_t ret)
 {
 	struct iovec *iov = &iocb->ki_iovec[iocb->ki_cur_seg];
@@ -1927,6 +1931,8 @@ SYSCALL_DEFINE3(io_submit, aio_context_t
 	return do_io_submit(ctx_id, nr, iocbpp, 0);
 }
 
+EXPORT_SYMBOL(sys_io_submit);
+
 /* lookup_kiocb
  *	Finds a given iocb for cancellation.
  */
@@ -2006,6 +2012,8 @@ SYSCALL_DEFINE3(io_cancel, aio_context_t
 	return ret;
 }
 
+EXPORT_SYMBOL(sys_io_cancel);
+
 /* io_getevents:
  *	Attempts to read at least min_nr events and up to nr events from
  *	the completion queue for the aio_context specified by ctx_id.  May
@@ -2036,3 +2044,5 @@ SYSCALL_DEFINE5(io_getevents, aio_contex
 	asmlinkage_protect(5, ret, ctx_id, min_nr, nr, events, timeout);
 	return ret;
 }
+
+EXPORT_SYMBOL(sys_io_getevents);
diff -urpN source.rhel6//fs/open.c source/fs/open.c
--- source.rhel6//fs/open.c	2012-11-21 12:24:38.097579412 +0100
+++ source/fs/open.c	2012-11-21 16:16:34.083206503 +0100
@@ -611,6 +611,8 @@ out:
 	return error;
 }
 
+EXPORT_SYMBOL(sys_lchown);
+
 SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
 {
 	struct file * file;
diff -urpN source.rhel6//fs/utimes.c source/fs/utimes.c
--- source.rhel6//fs/utimes.c	2012-11-21 12:24:38.249580405 +0100
+++ source/fs/utimes.c	2012-11-21 16:20:22.144720576 +0100
@@ -1,3 +1,4 @@
+#include <linux/module.h>
 #include <linux/compiler.h>
 #include <linux/file.h>
 #include <linux/fs.h>
@@ -184,6 +185,8 @@ out:
 	return error;
 }
 
+EXPORT_SYMBOL(do_utimes);
+
 SYSCALL_DEFINE4(utimensat, int, dfd, char __user *, filename,
 		struct timespec __user *, utimes, int, flags)
 {
diff -urpN source.rhel6//include/linux/major.h source/include/linux/major.h
--- source.rhel6//include/linux/major.h	2012-11-21 12:24:38.717583463 +0100
+++ source/include/linux/major.h	2012-11-21 16:21:14.865066525 +0100
@@ -146,6 +146,7 @@
 #define UNIX98_PTY_SLAVE_MAJOR	(UNIX98_PTY_MASTER_MAJOR+UNIX98_PTY_MAJOR_COUNT)
 
 #define DRBD_MAJOR		147
+#define MARS_MAJOR		148
 #define RTF_MAJOR		150
 #define RAW_MAJOR		162
 
diff -urpN source.rhel6//include/linux/sched.h source/include/linux/sched.h
--- source.rhel6//include/linux/sched.h	2012-11-21 12:24:38.953585006 +0100
+++ source/include/linux/sched.h	2012-11-21 16:22:31.845571806 +0100
@@ -1532,6 +1532,9 @@ struct task_struct {
 	/* mutex deadlock detection */
 	struct mutex_waiter *blocked_on;
 #endif
+#ifdef CONFIG_DEBUG_SPINLOCK
+	atomic_t lock_count;
+#endif
 #ifdef CONFIG_TRACE_IRQFLAGS
 	unsigned int irq_events;
 	int hardirqs_enabled;
diff -urpN source.rhel6//lib/debug_locks.c source/lib/debug_locks.c
--- source.rhel6//lib/debug_locks.c	2012-11-21 12:24:39.849590860 +0100
+++ source/lib/debug_locks.c	2012-11-21 16:24:06.234191565 +0100
@@ -44,3 +44,5 @@ int debug_locks_off(void)
 	}
 	return 0;
 }
+
+EXPORT_SYMBOL(debug_locks_off);
diff -urpN source.rhel6//mm/init-mm.c source/mm/init-mm.c
--- source.rhel6//mm/init-mm.c	2012-11-21 12:24:39.929591383 +0100
+++ source/mm/init-mm.c	2012-11-21 16:25:35.382777139 +0100
@@ -5,6 +5,7 @@
 #include <linux/list.h>
 #include <linux/cpumask.h>
 #include <linux/module.h>
+#include <linux/sched.h>
 
 #include <asm/atomic.h>
 #include <asm/pgtable.h>
@@ -18,5 +19,10 @@ struct mm_struct init_mm = {
 	.page_table_lock =  __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
 	.mmlist		= LIST_HEAD_INIT(init_mm.mmlist),
 	.cpu_vm_mask	= CPU_MASK_ALL,
+#ifdef CONFIG_AIO
+	.ioctx_lock     =  __SPIN_LOCK_UNLOCKED(init_mm.ioctx_lock),
+	.ioctx_list     = HLIST_HEAD_INIT,
+	.get_unmapped_area = arch_get_unmapped_area,
+#endif
 };
 EXPORT_SYMBOL(init_mm);
diff -urpN source.rhel6//mm/mmu_context.c source/mm/mmu_context.c
--- source.rhel6//mm/mmu_context.c	2012-11-21 12:24:39.969591645 +0100
+++ source/mm/mmu_context.c	2012-11-21 16:26:42.839220361 +0100
@@ -7,6 +7,7 @@
 #include <linux/mmu_context.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/module.h>
 
 #include <asm/mmu_context.h>
 
diff -urpN source.rhel6//mm/page_alloc.c source/mm/page_alloc.c
--- source.rhel6//mm/page_alloc.c	2012-11-21 12:24:39.985591749 +0100
+++ source/mm/page_alloc.c	2012-11-21 16:29:13.160208474 +0100
@@ -168,6 +168,7 @@ static char * const zone_names[MAX_NR_ZO
  * tuned according to the amount of memory in the system.
  */
 int min_free_kbytes = 1024;
+EXPORT_SYMBOL(min_free_kbytes);
 
 /*
  * Extra memory for the system to try freeing between the min and
@@ -5125,6 +5126,8 @@ void setup_per_zone_wmarks(void)
 	calculate_totalreserve_pages();
 }
 
+EXPORT_SYMBOL(setup_per_zone_wmarks);
+
 /*
  * The inactive anon list should be small enough that the VM never has to
  * do too much work, but large enough that each inactive page has a chance