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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 <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2017-03-21 10:35:57 -07:00
parent 031aeee000
commit f1ec57a462
1 changed files with 1 additions and 1 deletions
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2
kernel/rcu/rcu.h
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@ -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)
/*