linux-kernel - Re: Linux 2.6.39-rc3

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Message-ID: <20110418230254.GA22588@redhat.com>
Date:	Mon, 18 Apr 2011 19:02:55 -0400
From:	Dave Jones <davej@...hat.com>
To:	Kay Sievers <kay.sievers@...y.org>
Cc:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Eric Sandeen <sandeen@...hat.com>
Subject: Re: Linux 2.6.39-rc3

On Tue, Apr 19, 2011 at 12:57:27AM +0200, Kay Sievers wrote:

 > > uuid:<value> is the option field  as per
 > > Documentation/filesystem/proc.txt. There was an error in libmount
 > > parsing which got fixed upstream recently
 > 
 > Just a simple question about this approach in general? A filesystem
 > UUID can be changed on disk at any time (tune2fs -U ...).
 > 
 > Your code looks like you copy the bytes to the in-kernel superblock
 > structure without noticing any later changes on disk? How is that
 > supposed to work?

I thought tune2fs on a mounted filesystem was always a
"you get to keep both pieces if it breaks" situation.

	Dave

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