Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Sat, 28 Dec 2019 15:36:51 +0100
From:   Pali =?utf-8?B?Um9ow6Fy?= <pali.rohar@gmail.com>
To:     Eric Sandeen <sandeen@redhat.com>,
        Andreas Dilger <adilger@dilger.ca>,
        David Sterba <dsterba@suse.com>,
        "Darrick J. Wong" <darrick.wong@oracle.com>,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: FS_IOC_GETFSLABEL and FS_IOC_SETFSLABEL
Message-ID: <20191228143651.bjb4sjirn2q3xup4@pali>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
        protocol="application/pgp-signature"; boundary="colws2dljlnl6i4c"
Content-Disposition: inline
User-Agent: NeoMutt/20170113 (1.7.2)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk


--colws2dljlnl6i4c
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hello!

I see that you have introduced in commit 62750d0 two new IOCTLs for
filesyetems: FS_IOC_GETFSLABEL and FS_IOC_SETFSLABEL.

I would like to ask, are these two new ioctls mean to be generic way for
userspace to get or set fs label independently of which filesystem is
used? Or are they only for btrfs?

Because I was not able to find any documentation for it, what is format
of passed buffer... null-term string? fixed-length? and in which
encoding? utf-8? latin1? utf-16? or filesystem dependent?

--=20
Pali Roh=C3=A1r
pali.rohar@gmail.com

--colws2dljlnl6i4c
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iF0EABECAB0WIQS4VrIQdKium2krgIWL8Mk9A+RDUgUCXgdofwAKCRCL8Mk9A+RD
UhOtAJ4uYIiEZ7JuYou8B7poIoLlwRfYkgCfZaBuMUSd5Qrwzse09H6T52ZtAVE=
=BiJm
-----END PGP SIGNATURE-----

--colws2dljlnl6i4c--