linux-kernel - Re: 2.6.29 -mm merge plans

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Date:	Wed, 07 Jan 2009 02:38:45 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Nick Piggin <npiggin@...e.de>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.29 -mm merge plans

Nick Piggin <npiggin@...e.de> writes:
>
> I can't see a problem with putting a global mutex around sys_sync (almost
> by definition, any app in the last 10+ years that calls sys_sync is not
> performance critical).

Hmm, but sync() used to (is still?) livelocky and when it takes a
minute or so to flush (and I've seen that) do you really want any
other sync user to block for a minute too?

-Andi


-- 
ak@...ux.intel.com
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