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From: Arjan van de Ven <arjan@infradead.org>
Cc: hch@infradead.org, miklos@szeredi.hu, tytso@mit.edu,
	pavel@suse.cz, t-sato@yk.jp.nec.com, akpm@linux-foundation.org,
	viro@ZenIV.linux.org.uk, linux-ext4@vger.kernel.org,
	xfs@oss.sgi.com, dm-devel@redhat.com,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	axboe@kernel.dk, mtk.manpages@googlemail.com
Subject: Re: [PATCH 3/3] Add timeout feature
Date: Tue, 8 Jul 2008 23:41:20 -0700	[thread overview]
Message-ID: <20080708234120.5072111f@infradead.org> (raw)
In-Reply-To: <E1KGT4q-0006fD-Jb@pomaz-ex.szeredi.hu>

On Wed, 09 Jul 2008 08:22:56 +0200
Miklos Szeredi <miklos@szeredi.hu> wrote:

> On Wed, 9 Jul 2008, Christoph Hellwig wrote:
> > On Wed, Jul 09, 2008 at 08:13:21AM +0200, Miklos Szeredi wrote:
> > > This would mean that freeze and thaw will have to be done on the
> > > same file descriptor, but this isn't unreasonable to expect, is
> > > it?
> > 
> > It is certainly not the current use case, where you run one command
> > to freeze the filesystem and another one to unfreeze it.
> 
> So instead of
> 
>   freeze_fs mountpoint
>   backup-command
>   unfreeze_fs mountpoint
> 
> the user would have do to
> 
>   run_freezed mountpoint backup-command
> 
> I find the second one nicer, regardless of any reliability issues.

nah he needs to do

make_snapshot ; backup-command ; unref_snapshot.

freezing isn't the right solution for the backup problem ;)


-- 
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

WARNING: multiple messages have this Message-ID (diff)
From: Arjan van de Ven <arjan@infradead.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: hch@infradead.org, miklos@szeredi.hu, tytso@mit.edu,
	pavel@suse.cz, t-sato@yk.jp.nec.com, akpm@linux-foundation.org,
	viro@ZenIV.linux.org.uk, linux-ext4@vger.kernel.org,
	xfs@oss.sgi.com, dm-devel@redhat.com,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	axboe@kernel.dk, mtk.manpages@googlemail.com
Subject: Re: [PATCH 3/3] Add timeout feature
Date: Tue, 8 Jul 2008 23:41:20 -0700	[thread overview]
Message-ID: <20080708234120.5072111f@infradead.org> (raw)
In-Reply-To: <E1KGT4q-0006fD-Jb@pomaz-ex.szeredi.hu>

On Wed, 09 Jul 2008 08:22:56 +0200
Miklos Szeredi <miklos@szeredi.hu> wrote:

> On Wed, 9 Jul 2008, Christoph Hellwig wrote:
> > On Wed, Jul 09, 2008 at 08:13:21AM +0200, Miklos Szeredi wrote:
> > > This would mean that freeze and thaw will have to be done on the
> > > same file descriptor, but this isn't unreasonable to expect, is
> > > it?
> > 
> > It is certainly not the current use case, where you run one command
> > to freeze the filesystem and another one to unfreeze it.
> 
> So instead of
> 
>   freeze_fs mountpoint
>   backup-command
>   unfreeze_fs mountpoint
> 
> the user would have do to
> 
>   run_freezed mountpoint backup-command
> 
> I find the second one nicer, regardless of any reliability issues.

nah he needs to do

make_snapshot ; backup-command ; unref_snapshot.

freezing isn't the right solution for the backup problem ;)


-- 
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

WARNING: multiple messages have this Message-ID (diff)
From: Arjan van de Ven <arjan@infradead.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: hch@infradead.org, tytso@mit.edu, pavel@suse.cz,
	t-sato@yk.jp.nec.com, akpm@linux-foundation.org,
	viro@ZenIV.linux.org.uk, linux-ext4@vger.kernel.org,
	xfs@oss.sgi.com, dm-devel@redhat.com,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	axboe@kernel.dk, mtk.manpages@googlemail.com
Subject: Re: [PATCH 3/3] Add timeout feature
Date: Tue, 8 Jul 2008 23:41:20 -0700	[thread overview]
Message-ID: <20080708234120.5072111f@infradead.org> (raw)
In-Reply-To: <E1KGT4q-0006fD-Jb@pomaz-ex.szeredi.hu>

On Wed, 09 Jul 2008 08:22:56 +0200
Miklos Szeredi <miklos@szeredi.hu> wrote:

> On Wed, 9 Jul 2008, Christoph Hellwig wrote:
> > On Wed, Jul 09, 2008 at 08:13:21AM +0200, Miklos Szeredi wrote:
> > > This would mean that freeze and thaw will have to be done on the
> > > same file descriptor, but this isn't unreasonable to expect, is
> > > it?
> > 
> > It is certainly not the current use case, where you run one command
> > to freeze the filesystem and another one to unfreeze it.
> 
> So instead of
> 
>   freeze_fs mountpoint
>   backup-command
>   unfreeze_fs mountpoint
> 
> the user would have do to
> 
>   run_freezed mountpoint backup-command
> 
> I find the second one nicer, regardless of any reliability issues.

nah he needs to do

make_snapshot ; backup-command ; unref_snapshot.

freezing isn't the right solution for the backup problem ;)


-- 
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

  reply	other threads:[~2008-07-09  6:41 UTC|newest]

Thread overview: 136+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-30 12:24 [PATCH 3/3] Add timeout feature Takashi Sato
2008-06-30 12:24 ` Takashi Sato
2008-07-01  8:10 ` Christoph Hellwig
2008-07-01 10:52   ` Alasdair G Kergon
2008-07-01 10:52     ` [dm-devel] " Alasdair G Kergon
2008-07-03 12:11     ` Takashi Sato
2008-07-03 12:11       ` [dm-devel] " Takashi Sato
2008-07-03 12:11       ` Takashi Sato
2008-07-03 12:47       ` Alasdair G Kergon
2008-07-03 12:47         ` [dm-devel] " Alasdair G Kergon
2008-07-03 22:11         ` Dave Chinner
2008-07-03 22:11           ` Dave Chinner
2008-07-04 12:08           ` Takashi Sato
2008-07-04 12:08             ` Takashi Sato
2008-07-03 22:11         ` Dave Chinner
2008-07-03 14:45       ` [dm-devel] " Eric Sandeen
2008-07-07 11:07   ` Pavel Machek
2008-07-08 23:10     ` Dave Chinner
2008-07-08 23:10       ` Dave Chinner
2008-07-08 23:20       ` Pavel Machek
2008-07-08 23:20       ` Pavel Machek
2008-07-08 23:20         ` Pavel Machek
2008-07-09  0:52         ` Dave Chinner
2008-07-09  1:09           ` Theodore Tso
2008-07-09  1:09           ` Theodore Tso
2008-07-09  1:09             ` Theodore Tso
2008-07-09  4:21             ` Brad Boyer
2008-07-09  4:21             ` Brad Boyer
2008-07-09  4:21               ` Brad Boyer
2008-07-09  4:21             ` Brad Boyer
2008-07-09  6:13             ` Miklos Szeredi
2008-07-09  6:16               ` Christoph Hellwig
2008-07-09  6:22                 ` Miklos Szeredi
2008-07-09  6:22                   ` Miklos Szeredi
2008-07-09  6:22                   ` Miklos Szeredi
2008-07-09  6:41                   ` Arjan van de Ven [this message]
2008-07-09  6:41                     ` Arjan van de Ven
2008-07-09  6:41                     ` Arjan van de Ven
2008-07-09  6:48                     ` Miklos Szeredi
2008-07-09  6:48                       ` Miklos Szeredi
2008-07-09  6:55                       ` Arjan van de Ven
2008-07-09  6:55                         ` Arjan van de Ven
2008-07-09  6:55                         ` Arjan van de Ven
2008-07-09  7:08                         ` Miklos Szeredi
2008-07-09  7:08                           ` Miklos Szeredi
2008-07-09 20:48                           ` Pavel Machek
2008-07-09  7:13                         ` Dave Chinner
2008-07-09 11:09                           ` Theodore Tso
2008-07-09 11:09                           ` Theodore Tso
2008-07-09 11:09                             ` Theodore Tso
2008-07-09 11:49                             ` Dave Chinner
2008-07-09 11:49                             ` Dave Chinner
2008-07-09 11:49                               ` Dave Chinner
2008-07-09 12:24                               ` Theodore Tso
2008-07-09 12:24                               ` Theodore Tso
2008-07-09 12:24                                 ` Theodore Tso
2008-07-09 12:59                                 ` Olaf Frączyk
2008-07-09 13:57                                   ` Arjan van de Ven
2008-07-09 13:57                                     ` Arjan van de Ven
2008-07-09 13:55                               ` Arjan van de Ven
2008-07-09 13:58                               ` jim owens
2008-07-09 14:13                                 ` jim owens
2008-07-13 12:06                                 ` Pavel Machek
2008-07-13 17:15                                   ` jim owens
2008-07-14  6:36                                     ` Pavel Machek
2008-07-14 13:17                                       ` jim owens
2008-07-14 13:12                                 ` Takashi Sato
2008-07-14 13:12                                   ` Takashi Sato
2008-07-14 14:04                                   ` jim owens
2008-07-09 11:49                             ` Dave Chinner
2008-07-09 13:53                           ` Arjan van de Ven
2008-07-09  6:59                     ` Dave Chinner
2008-07-09  7:13                       ` Miklos Szeredi
2008-07-09  7:33                         ` Dave Chinner
2008-07-09  7:33                           ` Dave Chinner
2008-07-09  8:11                           ` Miklos Szeredi
2008-07-09  8:11                             ` Miklos Szeredi
2008-07-09 11:15                             ` Dave Chinner
2008-07-09 11:15                               ` Dave Chinner
2008-07-09  1:09           ` Theodore Tso
2008-07-09 20:44           ` Pavel Machek
2008-07-09 20:44             ` Pavel Machek
2008-07-09 20:44           ` Pavel Machek
2008-07-09 20:44           ` Pavel Machek
2008-07-08 23:20       ` Pavel Machek
  -- strict thread matches above, loose matches on Subject: below --
2008-09-08 11:53 Takashi Sato
2008-09-08 11:53 ` Takashi Sato
2008-09-08 17:11 ` Christoph Hellwig
2008-09-25 21:06   ` Ric Wheeler
2008-09-26  8:52     ` Takashi Sato
2008-09-26  8:52       ` Takashi Sato
2008-09-26 10:58       ` Ric Wheeler
2008-09-29 11:11         ` Takashi Sato
2008-09-29 11:11           ` Takashi Sato
2008-09-29 11:11           ` Takashi Sato
2008-09-26 12:35       ` Valdis.Kletnieks
2008-09-26 12:35         ` Valdis.Kletnieks
2008-09-29 14:13       ` Christoph Hellwig
2008-09-29 14:36         ` Eric Sandeen
2008-09-29 14:36           ` Eric Sandeen
2008-09-29 14:37           ` Christoph Hellwig
2008-09-29 14:45             ` Eric Sandeen
2008-09-29 22:08               ` jim owens
2008-10-05 10:00               ` Pavel Machek
2008-10-09 10:12               ` Takashi Sato
2008-10-09 10:12                 ` Takashi Sato
2008-10-09 10:12                 ` Takashi Sato
2008-10-09 10:18                 ` Christoph Hellwig
2008-10-09 10:18                   ` Christoph Hellwig
2008-08-18 12:28 Takashi Sato
2008-08-18 12:28 ` Takashi Sato
2008-08-21 20:20 ` Andrew Morton
2008-08-21 20:20   ` Andrew Morton
2008-08-22 18:16   ` Christoph Hellwig
2008-08-22 18:16     ` Christoph Hellwig
2008-08-24 17:03   ` Oleg Nesterov
2008-08-29  9:39   ` Takashi Sato
2008-08-29  9:39     ` Takashi Sato
2008-08-29  9:39     ` Takashi Sato
2008-07-22  9:36 Takashi Sato
2008-07-22  9:36 Takashi Sato
2008-07-22  9:36 ` Takashi Sato
2008-07-22  9:36 ` Takashi Sato
2008-06-24  7:00 Takashi Sato
2008-06-24  7:00 ` Takashi Sato
2008-06-24 22:09 ` Andrew Morton
2008-06-27 11:33   ` Takashi Sato
2008-06-27 11:33     ` Takashi Sato
2008-06-27 11:33     ` Takashi Sato
2008-06-27 18:57     ` Andrew Morton
2008-06-29 23:13       ` Takashi Sato
2008-06-29 23:13         ` Takashi Sato
2008-06-29 23:13         ` Takashi Sato
2008-06-30  0:01         ` Andrew Morton
2008-06-30  0:01           ` Andrew Morton
2008-06-30  0:01           ` Andrew Morton

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