From 02d43b1d13a0a55a75bb5c5f98d2b13dbe71ecf9 Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Date: Mon, 1 Dec 2008 05:46:38 -0500
Subject: [PATCH 1/2] documentation: local_ops fix on_each_cpu
Impact: update code example in documentation
* Dr. David Alan Gilbert (dave@treblig.org) wrote:
[...]
> I noticed while looking at something else that the example in
> local_ops.txt still has the 4 operand on_each_cpu in the latest git;
> I don't know the rest of the code around there very well so I thought
> it best to mention it rather than post a patch.
Reported-by: Dr. David Alan Gilbert <dave@treblig.org>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
Documentation/local_ops.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/local_ops.txt b/Documentation/local_ops.txt
index f4f8b1c6c8ba..23045b8b50f0 100644
--- a/Documentation/local_ops.txt
+++ b/Documentation/local_ops.txt
@@ -149,7 +149,7 @@ static void do_test_timer(unsigned long data)
int cpu;
/* Increment the counters */
- on_each_cpu(test_each, NULL, 0, 1);
+ on_each_cpu(test_each, NULL, 1);
/* Read all the counters */
printk("Counters read from CPU %d\n", smp_processor_id());
for_each_online_cpu(cpu) {
From 201955463a5c1a70d3f70d1598b27e4c2c402642 Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Tue, 2 Dec 2008 22:55:38 +0100
Subject: [PATCH 2/2] check_hung_task(): unsigned sysctl_hung_task_warnings
cannot be less than 0
Impact: fix warnings-limit cutoff check for debug feature
unsigned sysctl_hung_task_warnings cannot be less than 0
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/softlockup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 3953e4aed733..dc0b3be6b7d5 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -188,7 +188,7 @@ static void check_hung_task(struct task_struct *t, unsigned long now)
if ((long)(now - t->last_switch_timestamp) <
sysctl_hung_task_timeout_secs)
return;
- if (sysctl_hung_task_warnings < 0)
+ if (!sysctl_hung_task_warnings)
return;
sysctl_hung_task_warnings--;