make kface thread safe

1 files changed, 4 insertions, 1 deletions

diff --git a/src/kernel_iface.c b/src/kernel_iface.c
index 5751ca6..35c84b6 100644
--- a/src/kernel_iface.c
+++ b/src/kernel_iface.c
@@ -3,6 +3,9 @@
 #include "litmus.h"
 #include "internal.h"
 
+/* per real-time thread kernel <-> user space flags */
+
+
 struct np_flag {
         #define RT_PREEMPTIVE           0x2050 /* = NP */
         #define RT_NON_PREEMPTIVE       0x4e50 /* =  P */
@@ -19,7 +22,7 @@ int signal_exit_np(void);
 
 
 
-static struct np_flag np_flag;
+static __thread struct np_flag np_flag;
 
 
 int init_kernel_iface(void)