Commit-ID: 351573a86d0ef17cbba1c5436706602692781bfe
Gitweb: http://git.kernel.org/tip/351573a86d0ef17cbba1c5436706602692781bfe
Author: Paul E. McKenney <paul.mckenney@xxxxxxxxxx>
AuthorDate: Mon, 29 Oct 2012 04:52:56 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Tue, 13 Nov 2012 14:08:34 -0800
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@xxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paul.mckenney@xxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcutiny.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index e4c6a59..e7dce58 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -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;
}
/*
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|