linux-kernel - [tip:core/locking] locking, task_struct: Reduce size on TRACE

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Date:	Wed, 2 Dec 2009 10:45:07 GMT
From:	tip-bot for Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, h-shimamoto@...jp.nec.com,
	hpa@...or.com, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:core/locking] locking, task_struct: Reduce size on TRACE_IRQFLAGS and 64bit

Commit-ID:  fa1452e808732ae10e8b1267fd75fc2d028d634b
Gitweb:     http://git.kernel.org/tip/fa1452e808732ae10e8b1267fd75fc2d028d634b
Author:     Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
AuthorDate: Mon, 30 Nov 2009 14:59:44 +0900
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 2 Dec 2009 10:24:37 +0100

locking, task_struct: Reduce size on TRACE_IRQFLAGS and 64bit

Reorder task_struct field for TRACE_IRQFLAGS to remove padding
on 64-bit.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
LKML-Reference: <4B135F50.8070302@...jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 include/linux/sched.h |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 75e6e60..49be8f7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1421,17 +1421,17 @@ struct task_struct {
 #endif
 #ifdef CONFIG_TRACE_IRQFLAGS
 	unsigned int irq_events;
-	int hardirqs_enabled;
 	unsigned long hardirq_enable_ip;
-	unsigned int hardirq_enable_event;
 	unsigned long hardirq_disable_ip;
+	unsigned int hardirq_enable_event;
 	unsigned int hardirq_disable_event;
-	int softirqs_enabled;
+	int hardirqs_enabled;
+	int hardirq_context;
 	unsigned long softirq_disable_ip;
-	unsigned int softirq_disable_event;
 	unsigned long softirq_enable_ip;
+	unsigned int softirq_disable_event;
 	unsigned int softirq_enable_event;
-	int hardirq_context;
+	int softirqs_enabled;
 	int softirq_context;
 #endif
 #ifdef CONFIG_LOCKDEP
--
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