linux-kernel - Re: [patch 30/52] fs: icache lock lru/writeback lists

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Message-ID: <1277392412.1875.976.camel@laptop>
Date:	Thu, 24 Jun 2010 17:13:32 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Nick Piggin <npiggin@...e.de>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	John Stultz <johnstul@...ibm.com>,
	Frank Mayhar <fmayhar@...gle.com>
Subject: Re: [patch 30/52] fs: icache lock lru/writeback lists

On Fri, 2010-06-25 at 01:09 +1000, Nick Piggin wrote:
> On Thu, Jun 24, 2010 at 10:58:08AM +0200, Peter Zijlstra wrote:
> > On Thu, 2010-06-24 at 13:02 +1000, npiggin@...e.de wrote:
> > > +       assert_spin_locked(&wb_inode_list_lock);
> > 
> > There's also lockdep_assert_held() which also validates we're the owner.
> 
> These locks should have such miniscule contention now that they
> effectively mean the same thing :) But no that's a good suggestion
> thanks. I guess _most_ assert_spin_locked could be changed over.

Probably, I just haven't felt like actually visiting all sites to
check ;-)
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