linux-kernel - RE: exfat filesystem

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Message-ID: <SN6PR2101MB10721504993B62F1D6EBD693A0F10@SN6PR2101MB1072.namprd21.prod.outlook.com>
Date:   Tue, 9 Jul 2019 17:13:02 +0000
From:   KY Srinivasan <kys@...rosoft.com>
To:     Valdis Klētnieks <valdis.kletnieks@...edu>
CC:     Matthew Wilcox <willy@...radead.org>,
        Theodore Ts'o <tytso@....edu>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
        Sasha Levin <sashal@...nel.org>
Subject: RE: exfat filesystem



> -----Original Message-----
> From: Valdis Kletnieks <valdis@...edu> On Behalf Of Valdis Kletnieks
> Sent: Tuesday, July 9, 2019 9:51 AM
> To: KY Srinivasan <kys@...rosoft.com>
> Cc: Matthew Wilcox <willy@...radead.org>; Theodore Ts'o
> <tytso@....edu>; Alexander Viro <viro@...iv.linux.org.uk>; Greg Kroah-
> Hartman <gregkh@...uxfoundation.org>; linux-fsdevel@...r.kernel.org;
> linux-kernel@...r.kernel.org; devel@...verdev.osuosl.org; Sasha Levin
> <sashal@...nel.org>
> Subject: Re: exfat filesystem
> 
> On Tue, 09 Jul 2019 16:39:31 -0000, KY Srinivasan said:
> 
> > Let me dig up the details here.
> 
> In case this helps clarify the chain of events, the code in question is the
> Samsung code mentioned here, updated to 5.2 kernel....
> 
> "We know that Microsoft has done patent troll shakedowns in the past on
> Linux products related to the exfat filesystem. While we at Conservancy
> were successful in getting the code that implements exfat for Linux released
> under GPL (by Samsung), that code has not been upstreamed into Linux. So,
> Microsoft has not included any patents they might hold on exfat into the
> patent non-aggression pact."
> 
> https://sfconservancy.org/blog/2018/oct/10/microsoft-oin-exfat/
> 
> (Link in that para points here):
> https://sfconservancy.org/news/2013/aug/16/exfat-samsung/
> 
Thanks Valdis. I have started an internal thread on this; will get back ASAP.

K. Y