srcu: Allow a second bit in rcu_seq for SRCU state · f1ec57a462 - Gogs: Go Git Service GfA electronic

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>

Paul E. McKenney 8 years ago

parent

031aeee000

commit

f1ec57a462

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
kernel/rcu/rcu.h
							 
								View File
							
				@@ -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)
			
				 /*