linux-kernel - RE: [PATCH] mtd: fix: avoid race condition when accessing mtd->usecount

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Message-ID: <362FEC998FA6CC42BC5BA5B7BA75E0970D5A1D1E@DEMUMBX009.nsn-intra.net>
Date:	Tue, 12 May 2015 06:38:34 +0000
From:	"Cantavenera, Giuseppe (EXT-Other - DE/Ulm)" 
	<giuseppe.cantavenera.ext@...ia.com>
To:	ext Brian Norris <computersforpeace@...il.com>
CC:	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"Restelli, Lorenzo (EXT-Other - DE/Ulm)" 
	<lorenzo.restelli.ext@...ia.com>,
	"dwmw2@...radead.org" <dwmw2@...radead.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>,
	"Sverdlin, Alexander (Nokia - DE/Ulm)" <alexander.sverdlin@...ia.com>,
	zhangxingcai <zhangxingcai@...wei.com>,
	"fengfuqiu@...wei.com" <fengfuqiu@...wei.com>,
	"tanhaijun@...wei.com" <tanhaijun@...wei.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] mtd: fix: avoid race condition when accessing
 mtd->usecount

> -----Original Message-----
> From: ext Brian Norris [mailto:computersforpeace@...il.com]
> Sent: Tuesday, May 12, 2015 12:25 AM
> To: Cantavenera, Giuseppe (EXT-Other - DE/Ulm)
> Cc: linux-mtd@...ts.infradead.org; Restelli, Lorenzo (EXT-Other -
> DE/Ulm); dwmw2@...radead.org; stable@...r.kernel.org; Sverdlin,
> Alexander (Nokia - DE/Ulm); zhangxingcai; fengfuqiu@...wei.com;
> tanhaijun@...wei.com; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH] mtd: fix: avoid race condition when accessing mtd-
> >usecount
> 
> On Mon, May 11, 2015 at 07:44:26AM +0000, Cantavenera, Giuseppe (EXT-
> Other - DE/Ulm) wrote:
> > > -----Original Message-----
> > > From: ext Brian Norris [mailto:computersforpeace@...il.com]
> > > Sent: Friday, May 08, 2015 2:27 AM
> > > To: Cantavenera, Giuseppe (EXT-Other - DE/Ulm)
> > > Cc: linux-mtd@...ts.infradead.org; Restelli, Lorenzo (EXT-Other -
> > > DE/Ulm); dwmw2@...radead.org; stable@...r.kernel.org; Sverdlin,
> > > Alexander (Nokia - DE/Ulm); zhangxingcai; fengfuqiu@...wei.com;
> > > tanhaijun@...wei.com; linux-kernel@...r.kernel.org
> > > Subject: Re: [PATCH] mtd: fix: avoid race condition when accessing
> mtd-
> > > >usecount
> > >
> > > On Thu, May 07, 2015 at 05:17:45PM -0700, Brian Norris wrote:
> > > > On Thu, May 07, 2015 at 05:10:12PM -0700, Brian Norris wrote:
> > > > > On Tue, Apr 21, 2015 at 12:20:22PM +0200, Giuseppe Cantavenera
> > > wrote:

> Can I get a 'Tested-by', or at least an 'Acked-by' for the patch? I
> tested it, but I don't think I can reproduce your original problem very
> easily.
> 
> Brian

Hello Brian,

We were able to do some long runs last night and as expected
this patch seems to address the issue pretty well.

Thanks,
Giuseppe

Tested-by: Giuseppe Cantavenera <giuseppe.cantavenera.ext@...ia.com>
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