X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=urcu-qsbr-static.h;h=9f3a9b99f3c36ded7961cdeb3eadc102bba0f51d;hb=5db941e8f87f9728883c2dd0446698d13d5b9fec;hp=2816621f7296d0203e0551d5010d48d9028cfd56;hpb=02be55611d3b1c7bf4fdfcb3a9c98f621882d417;p=urcu.git

diff --git a/urcu-qsbr-static.h b/urcu-qsbr-static.h
index 2816621..9f3a9b9 100644
--- a/urcu-qsbr-static.h
+++ b/urcu-qsbr-static.h
@@ -121,11 +121,6 @@ static inline void debug_yield_init(void)
 }
 #endif
 
-static inline void reader_barrier()
-{
-	smp_mb();
-}
-
 #define RCU_GP_ONLINE		(1UL << 0)
 #define RCU_GP_CTR		(1UL << 1)
 
@@ -161,24 +156,20 @@ static inline void wake_up_gp(void)
 }
 
 #if (BITS_PER_LONG < 64)
-static inline int rcu_gp_ongoing(unsigned long *value)
+static inline int rcu_gp_ongoing(unsigned long *ctr)
 {
-	unsigned long reader_gp;
+	unsigned long v;
 
-	if (value == NULL)
-		return 0;
-	reader_gp = LOAD_SHARED(*value);
-	return reader_gp && ((reader_gp ^ rcu_gp_ctr) & RCU_GP_CTR);
+	v = LOAD_SHARED(*ctr);
+	return v && ((v ^ rcu_gp_ctr) & RCU_GP_CTR);
 }
 #else /* !(BITS_PER_LONG < 64) */
-static inline int rcu_gp_ongoing(unsigned long *value)
+static inline int rcu_gp_ongoing(unsigned long *ctr)
 {
-	unsigned long reader_gp;
+	unsigned long v;
 
-	if (value == NULL)
-		return 0;
-	reader_gp = LOAD_SHARED(*value);
-	return reader_gp && (reader_gp - rcu_gp_ctr > ULONG_MAX / 2);
+	v = LOAD_SHARED(*ctr);
+	return v && (v - rcu_gp_ctr > ULONG_MAX / 2);
 }
 #endif  /* !(BITS_PER_LONG < 64) */