From: worley@alum.mit.edu (Dale R. Worley)
To: Ronan CHAUVIN <ronan.chauvin@parrot.com>
Cc: util-linux@vger.kernel.org
Subject: Re: [libfdisk]: gpt_write_disklabel function robustness to sudden power off
Date: Mon, 23 Mar 2015 23:24:45 -0400 [thread overview]
Message-ID: <87384vyt4y.fsf@hobgoblin.ariadne.com> (raw)
In-Reply-To: <550BF3A9.8080508@parrot.com> (ronan.chauvin@parrot.com)
Ronan CHAUVIN <ronan.chauvin@parrot.com> writes:
> I was wondering if the gpt_write_disklabel function was robust to sudden
> power-off.
gpt_write_disklabel can only be "robust to sudden power-off" if there is
some expectation that the partition tables, etc. can be in some sort of
"consistent" state if power is lost. But it seems to me that there is
no such consistent state -- what condition would you want that
information to be in? The old information is irretrevably lost during
the operation; the only problem that can be caused by sudden power-off
is that you have to enter the new information into fdisk again before
the disk has a valid structure.
Dale
next prev parent reply other threads:[~2015-03-24 3:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-20 10:17 [libfdisk]: gpt_write_disklabel function robustness to sudden power off Ronan CHAUVIN
2015-03-20 11:18 ` Karel Zak
2015-03-23 18:31 ` Peter Cordes
2015-03-24 14:05 ` Ronan CHAUVIN
2015-03-24 14:25 ` Peter Cordes
2015-03-26 13:07 ` Ronan CHAUVIN
2015-03-24 3:24 ` Dale R. Worley [this message]
2015-03-24 13:54 ` Ronan CHAUVIN
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