linux-kernel - Re: [PATCH RFC v2 04/29] PCI/MSI/pSeries: Make quota traversing and requesting race-safe

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Message-ID: <20131120154326.GD28946@htj.dyndns.org>
Date:	Wed, 20 Nov 2013 10:43:26 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Alexander Gordeev <agordeev@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
	Michael Ellerman <michael@...erman.id.au>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ben Hutchings <bhutchings@...arflare.com>,
	David Laight <David.Laight@...LAB.COM>,
	Mark Lord <kernel@...rt.ca>, "H. Peter Anvin" <hpa@...or.com>,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH RFC v2 04/29] PCI/MSI/pSeries: Make quota traversing and
 requesting race-safe

Hello,

Sorry about the long delay.  Was traveling quite a bit.

On Fri, Oct 18, 2013 at 07:12:04PM +0200, Alexander Gordeev wrote:
> Signed-off-by: Alexander Gordeev <agordeev@...hat.com>

Please explain what the race condition in detail and how it gets fixed
by the patch.  This isn't a trivial change and non-trivial changes
especially stuff like race condition fixes definitely require detailed
explanation.

Thanks.

-- 
tejun
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