linux-kernel - [tip:core/locking] liblockdep: Add pthread_rwlock

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Date:	Mon, 4 Feb 2013 05:55:06 -0800
From:	tip-bot for Sasha Levin <sasha.levin@...cle.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, sasha.levin@...cle.com,
	hpa@...or.com, mingo@...nel.org, a.p.zijlstra@...llo.nl,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	tglx@...utronix.de
Subject: [tip:core/locking] liblockdep: Add pthread_rwlock_t test suite

Commit-ID:  8baa277b1b862ced9fce64d5ee5386676a723025
Gitweb:     http://git.kernel.org/tip/8baa277b1b862ced9fce64d5ee5386676a723025
Author:     Sasha Levin <sasha.levin@...cle.com>
AuthorDate: Sun, 3 Feb 2013 20:50:42 -0500
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 4 Feb 2013 11:39:06 +0100

liblockdep: Add pthread_rwlock_t test suite

A simple test to make sure we handle rwlocks correctly.

Signed-off-by: Sasha Levin <sasha.levin@...cle.com>
Cc: paulus@...ba.org
Cc: acme@...stprotocols.net
Cc: penberg@...nel.org
Cc: peterz@...radead.org
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/1359942644-26371-5-git-send-email-sasha.levin@oracle.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/lib/lockdep/tests/WW.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tools/lib/lockdep/tests/WW.c b/tools/lib/lockdep/tests/WW.c
new file mode 100644
index 0000000..4b1be0f
--- /dev/null
+++ b/tools/lib/lockdep/tests/WW.c
@@ -0,0 +1,16 @@
+#include <liblockdep/rwlock.h>
+
+void main(void)
+{
+	pthread_rwlock_t a, b;
+
+	liblockdep_init();
+	liblockdep_set_thread();
+
+	pthread_rwlock_init(&a, NULL);
+	pthread_rwlock_init(&b, NULL);
+
+	pthread_rwlock_wrlock(&a);
+	pthread_rwlock_rdlock(&b);
+	pthread_rwlock_wrlock(&a);
+}
--
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