From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Subject: Re: [PATCH 00/16 v3] f2fs: introduce flash-friendly file system
Date: Mon, 12 Nov 2012 10:04:03 +0400
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	 <201211021439.02797.Martin@lichtvoll.de>
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	 (sfid-20121105_204523_384093_CECB414C) <201211101933.38434.Martin@lichtvoll.de>
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Cc: Martin Steigerwald <Martin@lichtvoll.de>,
	linux-kernel@vger.kernel.org,
	Jaegeuk Kim <jaegeuk.kim@samsung.com>,
	linux-fsdevel@vger.kernel.org, gregkh@linuxfoundation.org,
	viro@zeniv.linux.org.uk, arnd@arndb.de, tytso@mit.edu,
	chur.lee@samsung.com, cm224.lee@samsung.com,
	jooyoung.hwang@samsung.com
To: Jaegeuk Kim <jaegeuk.kim@gmail.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <1352634168.1893.9.camel@kjgkr>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: linux-fsdevel.vger.kernel.org

On Sun, 2012-11-11 at 20:42 +0900, Jaegeuk Kim wrote:
> 2012-11-11 (=EC=9D=BC), 00:55 +0300, Vyacheslav Dubeyko:
> > Hi,
> >=20
> > On Nov 10, 2012, at 9:33 PM, Martin Steigerwald wrote:
> >=20
> > [snip]
> > >=20
> > > merkaba:~> mkfs.f2fs /dev/sdb1
> > > Info: sector size =3D 512
> > > Info: total sectors =3D 4093951 (in 512bytes)
> > > Info: zone aligned segment0 blkaddr: 256
> > > Info: This device doesn't support TRIM
> > > Info: format successful
> > > merkaba:~> mount /dev/sdb1 /mnt/zeit
> > > mount: you must specify the filesystem type
> > > merkaba:~#32> mount -t f2fs /dev/sdb1 /mnt/zeit
> > > merkaba:~> df -hT /mnt/zeit
> > > Dateisystem    Typ  Gr=C3=B6=C3=9Fe Benutzt Verf. Verw% Eingeh=C3=
=A4ngt auf
> > > /dev/sdb1      f2fs  2,0G    147M  1,8G    8% /mnt/zeit
> > >=20
> >=20
> > Do you really have trouble with f2fs mount without definition of fi=
lesystem type? If so, it is a bug.
>=20
> Could you explain this bug in more detail?
> Or, can anyone comment this?
>=20
> Actually, I've looking at the *mount* in linux-utils.
> I suspect something does not support f2fs in linux-utils.
>=20

Does this issue reproducible or not on last version of f2fs utilities?
There are some probability that it can be an issue of previous version.

As I can understand, if Linux kernel has support of concrete file syste=
m
then it should be mounted as with file system type definition as withou=
t
it. From my point of understanding, the linux-utils has some
universality and support of all possible file system than kernel can
support. Or I misunderstand something? I think that it can be an issue
on the kernel side. It needs to analyze system log in the case of issue
reproducibility, I think.

With the best regards,
Vyacheslav Dubeyko.

> >=20
> > Moreover, I think that it is really inconvenient that mkfs.f2fs doe=
sn't output its version. I suggest to output version of f2fs utilities.
>=20
> Agreed.
> But, I'd like to note that f2fs is not merged yet.
> IMHO, it'd better give an initial version after f2fs is merged.
> Thanks,
>=20
> >=20
> > With the best regards,
> > Vyacheslav Dubeyko.
> >=20
>=20