srcu: Allow a second bit in rcu_seq for SRCU state

This commit increases the number of reserved bits at the bottom of an rcu_seq grace-period counter from one to two, as will be needed to accommodate SRCU's three-state grace periods. Signed-off-by: Paul E. McKenney <[email protected]>
akvadrako · Apr 18, 2017 · f1ec57a · f1ec57a
1 parent 031aeee
commit f1ec57a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
@@ -61,7 +61,7 @@
  * Grace-period counter management.
  */
 
-#define RCU_SEQ_CTR_SHIFT	1
+#define RCU_SEQ_CTR_SHIFT	2
 #define RCU_SEQ_STATE_MASK	((1 << RCU_SEQ_CTR_SHIFT) - 1)
 
 /*