From b15a2e7d16cc6f6082d8c6a85349e48588763ffc Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Tue, 7 Jun 2011 17:05:34 -0700 Subject: [PATCH] rcu: Fix RCU's NMI documentation It has long been the case that the architecture must call nmi_enter() and nmi_exit() rather than irq_enter() and irq_exit() in order to permit RCU read-side critical sections in NMIs. Catch the documentation up with reality. Signed-off-by: Paul E. McKenney Acked-by: Mathieu Desnoyers --- Documentation/RCU/NMI-RCU.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/RCU/NMI-RCU.txt b/Documentation/RCU/NMI-RCU.txt index bf82851a0e5..687777f83b2 100644 --- a/Documentation/RCU/NMI-RCU.txt +++ b/Documentation/RCU/NMI-RCU.txt @@ -95,7 +95,7 @@ not to return until all ongoing NMI handlers exit. It is therefore safe to free up the handler's data as soon as synchronize_sched() returns. Important note: for this to work, the architecture in question must -invoke irq_enter() and irq_exit() on NMI entry and exit, respectively. +invoke nmi_enter() and nmi_exit() on NMI entry and exit, respectively. Answer to Quick Quiz