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Subject: Re: VFS issues (was: Re: 2.5.5-pre1: mounting NTFS partitions -t
	VFAT)
From: Richard Russon <ntfs@flatcap.org>
To: Jos Hulzink <josh@stack.nl>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,
        Linux Kernel Development <linux-kernel@vger.kernel.org>
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Date: 19 Feb 2002 11:52:18 +0000
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Hi Jos,

> The first question I want answered: Should I just call myself stupid for
> trying to mount NTFS as VFAT, or should we consider this a real issue that
> needs fixing ?

Stupid?  No.
Fixing?  Yes.

Whatever you throw at mount, you want it to fail_safe_.  i.e. in the
worst case, do nothing.

> While mounting a partition, the vfs layer tries to determine the partition
> type,

Without any help, mount (userspace) tries to determine the partition
type.  It understands the magics of a LOT of filesystems.

It looks for the NTFS magic before the DOS magic (or any of its variants).

> and passes that info to the filesystem driver

Which is passed to the VFS, and the to the driver which performs some
more rigid tests (hopefully :-)

Cheers,
  FlatCap (Rich)
  ntfs@flatcap.org


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