rcu: Fix TINY_RCU rcu_is_cpu_rrupt_from_idle check · 351573a86d - Gogs

rcu: Fix TINY_RCU rcu_is_cpu_rrupt_from_idle check

The rcu_is_cpu_rrupt_from_idle() needs to allow for one interrupt level
from the idle loop, but TINY_RCU checks for a call from the idle loop
itself.  This commit fixes this issue.

Reported-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

Paul E. McKenney 12 years ago

parent

f0a0e6f282

commit

351573a86d

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
kernel/rcutiny.c
							 
								View File
							
				@@ -195,7 +195,7 @@ EXPORT_SYMBOL(rcu_is_cpu_idle);
			
				  */
			
				 int rcu_is_cpu_rrupt_from_idle(void)
			
				 {
			
				-	return rcu_dynticks_nesting <= 0;
			
				+	return rcu_dynticks_nesting <= 1;
			
				 }
			
				 /*