linux-kernel - Re: [PATCH 4.19 325/639] afs: Fix AFS file locking to allow fine grained locks

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Message-ID: <20200126185703.GB26911@amd>
Date:   Sun, 26 Jan 2020 19:57:03 +0100
From:   Pavel Machek <pavel@...x.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Jonathan Billings <jsbillings@...illings.org>,
        David Howells <dhowells@...hat.com>,
        Sasha Levin <sashal@...nel.org>
Subject: Re: [PATCH 4.19 325/639] afs: Fix AFS file locking to allow fine
 grained locks

On Fri 2020-01-24 10:28:15, Greg Kroah-Hartman wrote:
> From: David Howells <dhowells@...hat.com>
> 
> [ Upstream commit 68ce801ffd82e72d5005ab5458e8b9e59f24d9cc ]
> 
> Fix AFS file locking to allow fine grained locks as some applications, such
> as firefox, won't work if they can't take such locks on certain state files
> - thereby preventing the use of kAFS to distribute a home directory.
> 
> Note that this cannot be made completely functional as the protocol only
> has provision for whole-file locks, so there exists the possibility

Is this suitable for -stable?

"AFS does not support fine-grained locks" is fine and easy to
understand. "AFS pretends it supports locks and hopes for the best for
benefit of firefox"... may be good idea for mainline, but I don't
think it matches -stable criteria.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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