X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-qsbr-static.h;h=22a93b2fd7a823d21c76cbbd1ad5c6bf3b0495e4;hp=887dc3d64e949ab843a248846e4286b4fbdbf7bb;hb=81d1f1f5a2d41dfd76defc700cdf68660d12f323;hpb=ac258107eb2e669d6f8210c86164f1b2a028f5fc

diff --git a/urcu-qsbr-static.h b/urcu-qsbr-static.h
index 887dc3d..22a93b2 100644
--- a/urcu-qsbr-static.h
+++ b/urcu-qsbr-static.h
@@ -162,7 +162,7 @@ static inline void reader_barrier()
 }
 
 #define RCU_GP_ONLINE		(1UL << 0)
-#define RCU_GP_COUNT		(1UL << 1)
+#define RCU_GP_CTR		(1UL << 1)
 
 /*
  * Global quiescent period counter with low-order bits unused.
@@ -173,6 +173,17 @@ extern unsigned long urcu_gp_ctr;
 
 extern unsigned long __thread rcu_reader_qs_gp;
 
+#if (BITS_PER_LONG < 64)
+static inline int rcu_gp_ongoing(unsigned long *value)
+{
+	unsigned long reader_gp;
+
+	if (value == NULL)
+		return 0;
+	reader_gp = LOAD_SHARED(*value);
+	return reader_gp && ((reader_gp ^ urcu_gp_ctr) & RCU_GP_CTR);
+}
+#else /* !(BITS_PER_LONG < 64) */
 static inline int rcu_gp_ongoing(unsigned long *value)
 {
 	unsigned long reader_gp;
@@ -182,6 +193,7 @@ static inline int rcu_gp_ongoing(unsigned long *value)
 	reader_gp = LOAD_SHARED(*value);
 	return reader_gp && (reader_gp - urcu_gp_ctr > ULONG_MAX / 2);
 }
+#endif  /* !(BITS_PER_LONG < 64) */
 
 static inline void _rcu_read_lock(void)
 {