From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:40797 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750945AbbKMVMO (ORCPT ); Fri, 13 Nov 2015 16:12:14 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZxLdj-0003JK-NF for linux-btrfs@vger.kernel.org; Fri, 13 Nov 2015 22:12:11 +0100 Received: from ip98-167-165-199.ph.ph.cox.net ([98.167.165.199]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 13 Nov 2015 22:12:11 +0100 Received: from 1i5t5.duncan by ip98-167-165-199.ph.ph.cox.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 13 Nov 2015 22:12:11 +0100 To: linux-btrfs@vger.kernel.org From: Duncan <1i5t5.duncan@cox.net> Subject: Re: illegal snapshot, cannot be deleted Date: Fri, 13 Nov 2015 21:11:46 +0000 (UTC) Message-ID: 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: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: 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. =:^) -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman