lguest: export symbols for lguest as a module

lguest does some fairly lowlevel things to support a host, which
normal modules don't need:

math_state_restore:
	When the guest triggers a Device Not Available fault, we need
	to be able to restore the FPU

__put_task_struct:
	We need to hold a reference to another task for inter-guest
	I/O, and put_task_struct() is an inline function which calls
	__put_task_struct.

access_process_vm:
	We need to access another task for inter-guest I/O.

map_vm_area & __get_vm_area:
	We need to map the switcher shim (ie. monitor) at 0xFFC01000.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/mm/memory.c b/mm/memory.c
index 50dd3d1f4d18..8aace3db3a54 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2865,3 +2865,4 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in
 
         return buf - old_buf;
 }
+EXPORT_SYMBOL_GPL(access_process_vm);