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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>
This commit is contained in:
Paul E. McKenney 2012-10-29 04:52:56 -07:00 committed by Paul E. McKenney
parent f0a0e6f282
commit 351573a86d
1 changed files with 1 additions and 1 deletions
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2
kernel/rcutiny.c
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@ -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;
}
/*