From: Andi Kleen <andi@firstfloor.org>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>,
gregkh@linuxfoundation.org
Subject: [PATCH 04/13] staging/zmem: Use lockdep_assert_held instead of spin_is_locked
Date: Tue, 27 Mar 2012 17:47:08 -0700 [thread overview]
Message-ID: <1332895637-32572-5-git-send-email-andi@firstfloor.org> (raw)
In-Reply-To: <1332895637-32572-1-git-send-email-andi@firstfloor.org>
From: Andi Kleen <ak@linux.intel.com>
WARN_ON(!spin_is_locked()) will always trigger on UP.
Use lockdep_assert_held instead.
Cc: gregkh@linuxfoundation.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
drivers/staging/zcache/tmem.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/zcache/tmem.h b/drivers/staging/zcache/tmem.h
index ed147c4..0d4aa82 100644
--- a/drivers/staging/zcache/tmem.h
+++ b/drivers/staging/zcache/tmem.h
@@ -47,7 +47,7 @@
#define ASSERT_INVERTED_SENTINEL(_x, _y) do { } while (0)
#endif
-#define ASSERT_SPINLOCK(_l) WARN_ON(!spin_is_locked(_l))
+#define ASSERT_SPINLOCK(_l) lockdep_assert_held(_l)
/*
* A pool is the highest-level data structure managed by tmem and
--
1.7.7.6
next prev parent reply other threads:[~2012-03-28 0:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-28 0:47 spin-is-locked is evil patchkit v2 Andi Kleen
2012-03-28 0:47 ` [PATCH 01/13] block: use lockdep_assert_held for queue locking Andi Kleen
2012-03-30 10:33 ` Jens Axboe
2012-03-28 0:47 ` [PATCH 02/13] sgi-xp: Use lockdep_assert_held Andi Kleen
2012-03-28 0:47 ` [PATCH 03/13] ada152x: Remove broken usage of spin_is_locked Andi Kleen
2012-03-28 0:47 ` Andi Kleen [this message]
2012-03-28 0:47 ` [PATCH 05/13] XFS: Fix lock ASSERT on UP Andi Kleen
2012-03-29 23:21 ` Christoph Hellwig
2012-03-29 23:52 ` Andi Kleen
2012-03-30 4:13 ` Dave Chinner
2012-03-30 14:04 ` Andi Kleen
2012-03-30 14:10 ` Christoph Hellwig
2012-04-19 21:31 ` Andrew Morton
2012-03-28 0:47 ` [PATCH 06/13] huge-memory: Use lockdep_assert_held Andi Kleen
2012-03-28 0:47 ` [PATCH 07/13] futex: Use lockdep_assert_held() for lock checking Andi Kleen
2012-03-28 0:47 ` [PATCH 08/13] irda: remove spin_is_locked Andi Kleen
2012-03-28 1:32 ` David Miller
2012-03-28 0:47 ` [PATCH 09/13] usb: gadget: f_fs: Remove lock is held before freeing checks Andi Kleen
2012-04-10 10:42 ` Felipe Balbi
2012-03-28 0:47 ` [PATCH 10/13] smsc911x: Use lockdep_assert_held instead of home grown buggy construct Andi Kleen
2012-03-28 1:32 ` David Miller
2012-03-28 0:47 ` [PATCH 11/13] Add a discussion on why spin_is_locked() is bad to spinlocks.txt Andi Kleen
2012-03-28 8:48 ` Wolfram Sang
2012-03-28 9:07 ` Andi Kleen
2012-03-28 0:47 ` [PATCH 12/13] Add a kerneldoc comment to spin_is_locked() that discourages its usage Andi Kleen
2012-03-28 8:49 ` Wolfram Sang
2012-03-28 0:47 ` [PATCH 13/13] checkpatch: Check for spin_is_locked Andi Kleen
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