[PATCH 3.8-rc4-nohz3] kvm: Add missing EXPORT_SYMBOL when CONFIG_KVM=m

[Sedat Dilek <sedat.dilek@gmail.com>]

With CONFIG_KVM=m my build with 3.8-rc4-nohz3 breaks like this:

ERROR: "guest_enter" [arch/x86/kvm/kvm.ko] undefined!
ERROR: "guest_exit" [arch/x86/kvm/kvm.ko] undefined!

Fix this by adding the missing EXPORT_SYMBOL for guest_enter() and
guest_exit() in kernel/context_tracking.c as suggested by Frederic.

This issue was introduced with commit 8eebafe9be58 ("kvm: Prepare to
add generic guest entry/exit callbacks").

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
---
 kernel/context_tracking.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index bbb2c2c..950f30a 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -111,14 +111,16 @@ void guest_enter(void)
 	else
 		__guest_enter();
 }
+EXPORT_SYMBOL(guest_enter);
 
 void guest_exit(void)
-{
+{i
 	if (vtime_accounting_enabled())
 		vtime_guest_exit(current);
 	else
 		__guest_exit();
 }
+EXPORT_SYMBOL(guest_exit);
 #endif
 
 
-- 
1.8.1.1