From: David Sterba <dsterba@suse.cz>
To: Qu Wenruo <quwenruo@cn.fujitsu.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH v3] btrfs: Introduce new mount option to disable tree log replay
Date: Wed, 16 Dec 2015 14:58:40 +0100 [thread overview]
Message-ID: <20151216135840.GS4227@suse.cz> (raw)
In-Reply-To: <5670C017.5010104@cn.fujitsu.com>
On Wed, Dec 16, 2015 at 09:36:23AM +0800, Qu Wenruo wrote:
> >
> > mount -o ro,nowr /dev/sdx /mnt
> >
> > would work when switching kernels.
> >
> That would be nice.
>
> I'd like to forward the idea/discussion to filesystem ml, not only btrfs
> maillist.
Good idea.
> Such behavior should better be coordinated between all(at least xfs and
> ext4 and btrfs) filesystems.
>
> One sad example is, we can't use 'norecovery' mount option to disable
> log replay in btrfs, as there is 'recovery' mount option already.
I think we should pick a name that's not tied to the implementation how
the potential writes could happen under a RO mount.
Recovery/replay/whatever, the expected use is "avoid any writes".
> So I hope we can have a unified mount option between mainline filesystems.
That would be a good thing indeed.
prev parent reply other threads:[~2015-12-16 14:00 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-10 2:34 [PATCH v3] btrfs: Introduce new mount option to disable tree log replay Qu Wenruo
2015-12-14 17:32 ` David Sterba
2015-12-14 17:50 ` Austin S. Hemmelgarn
2015-12-14 19:16 ` Christoph Anton Mitterer
2015-12-14 19:33 ` Austin S. Hemmelgarn
2015-12-14 19:44 ` Christoph Anton Mitterer
2015-12-14 20:20 ` Austin S. Hemmelgarn
2015-12-14 23:34 ` Christoph Anton Mitterer
2015-12-15 13:31 ` Austin S. Hemmelgarn
2015-12-16 13:53 ` David Sterba
2015-12-14 19:11 ` Christoph Anton Mitterer
2015-12-16 1:36 ` Qu Wenruo
2015-12-16 2:13 ` Christoph Anton Mitterer
2015-12-16 11:10 ` Duncan
2015-12-16 11:45 ` Christoph Anton Mitterer
2015-12-17 1:09 ` Duncan
2015-12-17 1:46 ` Christoph Anton Mitterer
2015-12-16 12:12 ` Austin S. Hemmelgarn
2015-12-16 12:34 ` Christoph Anton Mitterer
2015-12-16 12:57 ` Austin S. Hemmelgarn
2015-12-16 13:01 ` Christoph Anton Mitterer
2015-12-16 13:58 ` David Sterba [this message]
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