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Message-Id: <1457461223-4301-2-git-send-email-dave@stgolabs.net>
Date: Tue, 8 Mar 2016 10:20:21 -0800
From: Davidlohr Bueso <dave@...olabs.net>
To: tglx@...utronix.de, mingo@...nel.org
Cc: peterz@...radead.org, bigeasy@...utronix.de,
umgwanakikbuti@...il.com, paulmck@...ux.vnet.ibm.com,
dave@...olabs.net, linux-kernel@...r.kernel.org,
Davidlohr Bueso <dbueso@...e.de>
Subject: [PATCH 1/3] rtmutex: Delete save_state member of struct rt_mutex
From: Davidlohr Bueso <dbueso@...e.de>
This field (debug) is unused. Furthermore it looks like a result
of rtmutex from -rt into upstream, where it serves to determine
if the wakeup is for a task blocked on a "sleeping spinlock",
iow if this is a regular rt_mutex_lock() or rt_spin_lock().
Of course, upstream we only have regular rt_mutexes, thus we
can safely assume nothing will be done with this field anyway.
There is also the fact that this is under debug.
Signed-off-by: Davidlohr Bueso <dbueso@...e.de>
---
include/linux/rtmutex.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h
index 1abba5c..9c50e2e 100644
--- a/include/linux/rtmutex.h
+++ b/include/linux/rtmutex.h
@@ -32,7 +32,6 @@ struct rt_mutex {
struct rb_node *waiters_leftmost;
struct task_struct *owner;
#ifdef CONFIG_DEBUG_RT_MUTEXES
- int save_state;
const char *name, *file;
int line;
void *magic;
--
2.1.4
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