[PATCH] kernel/rcutree.c: deem to be lazy if there are no callbacks.

[Chen Gang <gang.chen@asianux.com>]

According to the comment above rcu_cpu_has_callbacks(): "If there are
no callbacks, all of them are deemed to be lazy".

So when both 'hc' and 'al' are false, '*all_lazy' should be true, not
false.


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 kernel/rcutree.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 5b53a89..9ee9565 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -2725,7 +2725,7 @@ static int rcu_cpu_has_callbacks(int cpu, bool *all_lazy)
 			hc = true;
 	}
 	if (all_lazy)
-		*all_lazy = al;
+		*all_lazy = !hc ? true : al;
 	return hc;
 }
 
-- 
1.7.7.6