linux-kernel - Re: [PATCH 05/13] XFS: Fix lock ASSERT on UP

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Date:	Fri, 30 Mar 2012 01:52:01 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
	xfs-masters@....sgi.com
Subject: Re: [PATCH 05/13] XFS: Fix lock ASSERT on UP

On Thu, Mar 29, 2012 at 07:21:14PM -0400, Christoph Hellwig wrote:
> On Tue, Mar 27, 2012 at 05:47:09PM -0700, Andi Kleen wrote:
> > From: Andi Kleen <ak@...ux.intel.com>
> > 
> > ASSERT(!spin_is_locked()) doesn't work on UP builds. Replace with a standard
> > lockdep_assert_held()
> 
> The "standard" is assert_spin_locked() - which not only is much cheaper
> but also has the advantage of working in non-lockdep builds.

But then you have it unconditional, not just on debug builds.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only.
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