lkml.org 
[lkml]   [2006]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch 41/61] lock validator: special locking: genirq
From: Ingo Molnar <mingo@elte.hu>

teach special (recursive) locking code to the lock validator. Has no
effect on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
---
---
kernel/irq/handle.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

Index: linux/kernel/irq/handle.c
===================================================================
--- linux.orig/kernel/irq/handle.c
+++ linux/kernel/irq/handle.c
@@ -11,6 +11,7 @@
#include <linux/random.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
+#include <linux/kallsyms.h>

#include "internals.h"

@@ -193,3 +194,15 @@ out:
return 1;
}

+/*
+ * lockdep: we want to handle all irq_desc locks as a single lock-type:
+ */
+static struct lockdep_type_key irq_desc_lock_type;
+
+void early_init_irq_lock_type(void)
+{
+ int i;
+
+ for (i = 0; i < NR_IRQS; i++)
+ spin_lock_init_key(&irq_desc[i].lock, &irq_desc_lock_type);
+}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2006-05-29 23:39    [W:0.431 / U:25.768 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site