X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=urcu.h;h=b8f6d9b29ab20a73b40b547261294c0f033c56e8;hb=4917a879125c1fca08ccb4328104701e83108556;hp=2e8c0424abb0d413b6a64035ba05acced231d253;hpb=581a270d427d9598c06a4da9ae7f9a9fc5354ec0;p=urcu.git

diff --git a/urcu.h b/urcu.h
index 2e8c042..b8f6d9b 100644
--- a/urcu.h
+++ b/urcu.h
@@ -162,11 +162,12 @@ static inline void debug_yield_init(void)
 #endif
 
 /*
- * Limiting the nesting level to 256 to keep instructions small in the read
- * fast-path.
+ * The trick here is that RCU_GP_CTR_BIT must be a multiple of 8 so we can use a
+ * full 8-bits, 16-bits or 32-bits bitmask for the lower order bits.
  */
 #define RCU_GP_COUNT		(1U << 0)
-#define RCU_GP_CTR_BIT		(1U << 8)
+/* Use the amount of bits equal to half of the architecture long size */
+#define RCU_GP_CTR_BIT		(sizeof(long) << 2)
 #define RCU_GP_CTR_NEST_MASK	(RCU_GP_CTR_BIT - 1)
 
 /*