Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a12bb44471b819c7f33d8a83044e7116c124e3d5
Commit: a12bb44471b819c7f33d8a83044e7116c124e3d5
Parent: 2d3fbbb391e280724f7f7804ab00ff61cf1b6a4c
Author: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
AuthorDate: Thu May 10 22:22:47 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Fri May 11 08:29:34 2007 -0700
stop_machine() now uses hard_irq_disable
Add a call to hard_irq_disable() to stop_machine so that we make sure IRQs
are
really disabled and not only lazy-disabled on archs like powerpc as some
users
of stop_machine() may rely on that.
[EMAIL PROTECTED]: build fix]
Signed-off-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
Acked-by: Rusty Russell <[EMAIL PROTECTED]>
Cc: Paul Mackerras <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
kernel/stop_machine.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index daabb74..fcee2a8 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -8,6 +8,8 @@
#include <linux/sched.h>
#include <linux/stop_machine.h>
#include <linux/syscalls.h>
+#include <linux/interrupt.h>
+
#include <asm/atomic.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
@@ -45,6 +47,7 @@ static int stopmachine(void *cpu)
if (stopmachine_state == STOPMACHINE_DISABLE_IRQ
&& !irqs_disabled) {
local_irq_disable();
+ hard_irq_disable();
irqs_disabled = 1;
/* Ack: irqs disabled. */
smp_mb(); /* Must read state first. */
@@ -124,6 +127,7 @@ static int stop_machine(void)
/* Make them disable irqs. */
local_irq_disable();
+ hard_irq_disable();
stopmachine_set_state(STOPMACHINE_DISABLE_IRQ);
return 0;
-
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