From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from frost.carfax.org.uk ([85.119.82.111]:38422 "EHLO frost.carfax.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750735AbbKMVNn (ORCPT ); Fri, 13 Nov 2015 16:13:43 -0500 Date: Fri, 13 Nov 2015 21:13:41 +0000 From: Hugo Mills To: Duncan <1i5t5.duncan@cox.net> Cc: linux-btrfs@vger.kernel.org Subject: Re: illegal snapshot, cannot be deleted Message-ID: <20151113211341.GH24333@carfax.org.uk> References: <564486F3.5020804@gmail.com> <56461034.3070209@gmail.com> <56462784.2060601@gmail.com> <20151113184227.GF24333@carfax.org.uk> <56463CBC.70808@gmail.com> <20151113195520.GG24333@carfax.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="N8ia4yKhAKKETby7" In-Reply-To: Sender: linux-btrfs-owner@vger.kernel.org List-ID: --N8ia4yKhAKKETby7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Nov 13, 2015 at 09:11:46PM +0000, Duncan wrote: > Hugo Mills posted on Fri, 13 Nov 2015 19:55:20 +0000 as excerpted: > > > receive is implemented almost exclusively in userspace, with only a > > couple of ioctls for mucking around with the UUIDs at the end. > > I wasn't aware of that and had assumed kernel space. Apart from the > topic of discussion here, that has implications for the old "how old is > too old" versioning question regarding userspace, so thanks, Hugo. =:^) Note that send is still heavily kernel-side. It's only receive that's all in userspace. Hugo. -- Hugo Mills | hugo@... carfax.org.uk | __(_'> http://carfax.org.uk/ | Squeak! PGP: E2AB1DE4 | --N8ia4yKhAKKETby7 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJWRlKFAAoJEFheFHXiqx3k8RQQALx1DzoCZ+gX4pTe8D+ogW01 K3QKvmYyvpuhNp7VN3wY6oNYw3zvJNWNVthXLDnNPaho63k4HbFb7sORiZALtS91 QWs+lej60DVJ5UT9Oqm69dloUX1fwZgExnjIktf2ys1aZqbJ8budxLEqNlT6m637 Qr2+vzGJQaHtw68J81VD2876+eFuwsQX+ufwHueZ4j3pFYdByk9Jnn613rXNSCIw Hqi6S6qlT67uMDf85PLBAJcTQNp5E+aaqgr6k6W9SOJdNLLJFUGU2ZMjGNoWQ9lh hhxZrhlTS8vY3z0wlQHSqPSFQ4J1y8RbaObDqJL+GmlmXA/QIu6iasmmY2fIeX01 h2M7octvWrwumrVdeTpXr6mIDBB1zHVDJecJ/yOGQT3oHZzyw8U+JxNp1wwHRmd2 nQmvYsPvXQiVAUxY3PaclGO4Zs+Hh8HTVeBFJf6n2HJtV2YRYcAjRrlirSSaEwzz kd0Uf3vpeqk//KZhu5wWw7/kYZjaYdFzTQclXPwIgl3lpdixs0SVNPiPCYir9Abs itjlGz4BixxeEtNtGhE2rTlXMMEfqfQijg8PhmTEKp7U51gh8AZq2NienvevWLZj fbLZbxQuSCbJTRpeJe6g4oekujXd81GEgmFdbObhTNqTsQOF0Ks5fSdtqRTzorOd sr+gGb1s+Dl0Ay8wgKZB =DJkb -----END PGP SIGNATURE----- --N8ia4yKhAKKETby7--