linux-kernel - [PATCH] sched, deadline: Properly initialize def_dl

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Date:	Tue, 17 Dec 2013 15:17:53 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	tglx@...utronix.de, mingo@...hat.com, oleg@...hat.com,
	fweisbec@...il.com, darren@...art.com, johan.eker@...csson.com,
	p.faure@...tech.ch, linux-kernel@...r.kernel.org,
	claudio@...dence.eu.com, michael@...rulasolutions.com,
	fchecconi@...il.com, tommaso.cucinotta@...up.it,
	juri.lelli@...il.com, nicola.manica@...i.unitn.it,
	luca.abeni@...tn.it, dhaval.giani@...il.com, hgu1972@...il.com,
	paulmck@...ux.vnet.ibm.com, raistlin@...ux.it,
	insop.song@...il.com, liming.wang@...driver.com, jkacur@...hat.com
Subject: [PATCH] sched, deadline: Properly initialize def_dl_bandwidth lock


Spinlocks even in structures require to be properly initialized.

Signed-off-by: Steven Rostedt <rostedt@...dmis.org>

Index: linux-rt.git/kernel/sched/deadline.c
===================================================================
--- linux-rt.git.orig/kernel/sched/deadline.c
+++ linux-rt.git/kernel/sched/deadline.c
@@ -18,7 +18,9 @@
 
 #include <linux/slab.h>
 
-struct dl_bandwidth def_dl_bandwidth;
+struct dl_bandwidth def_dl_bandwidth = {
+	.dl_runtime_lock = __RAW_SPIN_LOCK_UNLOCKED(def_dl_bandwidth.dl_runtime_lock),
+};
 
 static inline struct task_struct *dl_task_of(struct sched_dl_entity *dl_se)
 {
--
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