[LTP] [RFC PATCH 4/8] kernel/mem: Fix linking error with -fno-common

[Petr Vorel]

Adding missing extern.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 testcases/kernel/mem/include/mem.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testcases/kernel/mem/include/mem.h b/testcases/kernel/mem/include/mem.h
index a12c2231f..cce9c0497 100644
--- a/testcases/kernel/mem/include/mem.h
+++ b/testcases/kernel/mem/include/mem.h
@@ -37,7 +37,7 @@ static inline void clean_node(unsigned long *array)
 #define MLOCK			2
 #define KSM			3
 
-long overcommit;
+extern long overcommit;
 void oom(int testcase, int lite, int retcode, int allow_sigkill);
 void testoom(int mempolicy, int lite, int retcode, int allow_sigkill);
 
-- 
2.26.0