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@ct.jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4B135F50.8070302@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 75e6e60..49be8f7 100644 (file)
--- 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