2009-11-30 06:00:27

by Hiroshi Shimamoto

Subject: [PATCH] task_struct: reduce size on TRACE_IRQFLAGS and 64bit

From: Hiroshi Shimamoto <[email protected]>

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

Signed-off-by: Hiroshi Shimamoto <[email protected]>
---
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 b9c0bcd..7341cd7 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
--
1.6.3.3

2009-12-02 10:45:46

by Hiroshi Shimamoto

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 <[email protected]>
AuthorDate: Mon, 30 Nov 2009 14:59:44 +0900
Committer: Ingo Molnar <[email protected]>
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 <[email protected]>
Cc: Peter Zijlstra <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
---
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