On Thu, 14 Feb 2013, Chris Murphy wrote:
> Date: Thu, 14 Feb 2013 00:29:59 -0700
> From: Chris Murphy <lists@xxxxxxxxxxxxxxxxx>
> To: Dave Chinner <david@xxxxxxxxxxxxx>
> Cc: Karel Zak <kzak@xxxxxxxxxx>, Lukáš Czerner <lczerner@xxxxxxxxxx>,
> xfs@xxxxxxxxxxx, sandeen@xxxxxxxxxx, Zach Brown <zabrown@xxxxxxxxxx>,
> linux-btrfs@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH] xfs_mkfs: wipe old signatures from the device
>
>
> On Feb 13, 2013, at 3:17 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote:
> > it is the responsibility of filesystem
> > tools to behave sanely, not for the rest of the world to have to
> > work around the dangerous behaviour of a specific filesystems'
> > toolset.
>
> I appreciate this, and in particular that mkfs.xfs doesn't nerf a file system without the use of -f; even an existing XFS file system. Considering most data loss is user induced, I'd appreciate it if other file systems's tools weren't so easily made belligerent by (hopefully temporarily) confused apes wearing pants.
>
> Chris Murphy
I would not be so optimistic about it. The reason being that there
are almost _always_ old file system signatures on the device. So I
think that it got to the point where users will usually use mkfs.xfs
-f all the time. And even if they did not and they would use a wrong
device they would probably get the same warning even for the device
they wanted to use in the first place.
So even thoug it might help in some cases I do not think that we
should go and change all file systems to do that as well, it would
not be very useful anyway.
-Lukas
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