| From | "Paul E. McKenney" <> | Subject | [PATCH v3 tip/core/rcu 31/40] srcu: Allow a second bit in rcu_seq for SRCU state | Date | Wed, 19 Apr 2017 09:58:28 -0700 |
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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 <paulmck@linux.vnet.ibm.com> --- kernel/rcu/rcu.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index c62df93bfc1b..87a0ac95b551 100644 --- 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) /* -- 2.5.2
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