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From: Martin Steigerwald <Martin@lichtvoll.de>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Linux PM list <linux-pm@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>, Jan Kara <jack@suse.cz>,
	linux-fsdevel@vger.kernel.org, Dave Chinner <david@fromorbit.com>,
	Nigel Cunningham <nigel@tuxonice.net>,
	Pavel Machek <pavel@ucw.cz>,
	"Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Subject: Re: [RFC][PATCH] PM / Sleep: Freeze filesystems during system suspend/hibernation
Date: Sun, 29 Jan 2012 16:55:16 +0100	[thread overview]
Message-ID: <201201291655.17056.Martin@lichtvoll.de> (raw)
In-Reply-To: <201201281445.49377.rjw@sisk.pl>

Am Samstag, 28. Januar 2012 schrieb Rafael J. Wysocki:
> From: Rafael J. Wysocki <rjw@sisk.pl>
> 
> Freeze all filesystems during system suspend and (kernel-driven)
> hibernation by calling freeze_supers() for all superblocks and thaw
> them during the subsequent resume with the help of thaw_supers().
> 
> This makes filesystems stay in a consistent state in case something
> goes wrong between system suspend (or hibernation) and the subsequent
> resume (e.g. journal replays won't be necessary in those cases).  In
> particular, this should help to solve a long-standing issue that, in
> some cases, during resume from hibernation the boot loader causes the
> journal to be replied for the filesystem containing the kernel image

replied => replayed

> and/or initrd causing it to become inconsistent with the information
> stored in the hibernation image.

Thanks,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7

  parent reply	other threads:[~2012-01-29 15:55 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-28 13:45 [RFC][PATCH] PM / Sleep: Freeze filesystems during system suspend/hibernation Rafael J. Wysocki
2012-01-28 21:23 ` Nigel Cunningham
2012-01-29 15:55 ` Martin Steigerwald [this message]
2012-01-29 19:53   ` Rafael J. Wysocki
2012-01-29 16:28 ` Srivatsa S. Bhat
2012-01-29 19:53   ` Rafael J. Wysocki
2012-01-30 23:24     ` Srivatsa S. Bhat
2012-01-30 20:00 ` Jan Kara
2012-01-30 21:05   ` Rafael J. Wysocki
2012-01-30 21:10     ` Nigel Cunningham
2012-01-31  0:03       ` Jan Kara
2012-01-30 23:58     ` Jan Kara
2012-02-01 13:36 ` Pavel Machek
2012-02-01 15:29   ` Alan Stern
2012-02-10  2:52     ` Jamie Lokier
2012-02-10  9:03       ` Jan Kara
2012-02-02  3:17 ` Nigel Cunningham
2012-02-17 15:41 ` Josh Boyer
2012-02-17 15:41   ` Josh Boyer
2012-02-17 18:33   ` Josh Boyer
2012-02-17 20:59     ` Rafael J. Wysocki
2012-05-25 16:55       ` Josh Boyer
2012-05-25 16:55         ` Josh Boyer
2012-05-25 19:13         ` Rafael J. Wysocki
2013-12-17 16:03           ` Josh Boyer
2013-12-17 16:04             ` Josh Boyer
2013-12-17 23:08               ` Pavel Machek
2013-12-17 23:31                 ` Dave Chinner
2013-12-18  0:01                   ` Pavel Machek
2013-12-18 12:39                     ` Dave Chinner
2013-12-18 14:08                       ` Pavel Machek
2013-12-19  0:22                         ` Dave Chinner
2013-12-21 23:33                           ` Pavel Machek
2013-12-23  3:48                             ` Dave Chinner
2013-12-18  0:52               ` Rafael J. Wysocki
2013-12-18  1:00                 ` Josh Boyer
2013-12-18  1:16                   ` Rafael J. Wysocki
2013-12-18 12:31                     ` Josh Boyer
2013-12-18 21:40                       ` Rafael J. Wysocki

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