From 5f9fa8a62d6a98f5cb2ee2e00b85bfe95e45888d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 7 Dec 2007 19:02:47 +0100
Subject: [PATCH] lockdep: make cli/sti annotation warnings clearer
make cli/sti annotation warnings easier to interpret.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
kernel/lockdep.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 0f389621bb6b..723bd9f92556 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2654,10 +2654,15 @@ static void check_flags(unsigned long flags)
if (!debug_locks)
return;
- if (irqs_disabled_flags(flags))
- DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled);
- else
- DEBUG_LOCKS_WARN_ON(!current->hardirqs_enabled);
+ if (irqs_disabled_flags(flags)) {
+ if (DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)) {
+ printk("possible reason: unannotated irqs-off.\n");
+ }
+ } else {
+ if (DEBUG_LOCKS_WARN_ON(!current->hardirqs_enabled)) {
+ printk("possible reason: unannotated irqs-on.\n");
+ }
+ }
/*
* We dont accurately track softirq state in e.g.
--
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