Fix: handle sys_futex() FUTEX_WAIT interrupted by signal

[urcu.git] / urcu-pointer.h

diff --git a/urcu-pointer.h b/urcu-pointer.h
index 5be986ca65a0d6aab3027812fdbc2f0b4acdffb5..18ea99ecf3808ddcbc81aa29f033c815d4483381 100644 (file)
--- a/urcu-pointer.h
+++ b/urcu-pointer.h
@@ -66,6 +66,7 @@ extern "C" {
 
 extern void *rcu_dereference_sym(void *p);
 #define rcu_dereference(p)                                                  \
+       __extension__                                                        \
        ({                                                                   \
                __typeof__(p) _________p1 =     URCU_FORCE_CAST(__typeof__(p), \
                        rcu_dereference_sym(URCU_FORCE_CAST(void *, p)));    \
@@ -74,6 +75,7 @@ extern void *rcu_dereference_sym(void *p);
 
 extern void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new);
 #define rcu_cmpxchg_pointer(p, old, _new)                                   \
+       __extension__                                                        \
        ({                                                                   \
                __typeof__(*(p)) _________pold = (old);                      \
                __typeof__(*(p)) _________pnew = (_new);                     \
@@ -86,6 +88,7 @@ extern void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new);
 
 extern void *rcu_xchg_pointer_sym(void **p, void *v);
 #define rcu_xchg_pointer(p, v)                                              \
+       __extension__                                                        \
        ({                                                                   \
                __typeof__(*(p)) _________pv = (v);                          \
                __typeof__(*(p)) _________p1 = URCU_FORCE_CAST(__typeof__(*(p)), \