linux-kernel - Re: 2.6.29 -mm merge plans

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Message-ID: <20090107025725.GJ496@one.firstfloor.org>
Date:	Wed, 7 Jan 2009 03:57:25 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Nick Piggin <npiggin@...e.de>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.29 -mm merge plans

> sys_sync B which is invoked *after* sys_sync caller A should not
> return before A. If you didn't have a global lock, they'd tend to
> block one another's pages anyway. I think it's OK.

It means that you cannot reboot because reboot does sync.
What happens when the sync gets stuck somewhere on a really
slow device?

-Andi

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