From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from michael.mail.tiscali.it ([213.205.33.246]:41025 "EHLO michael.mail.tiscali.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751017AbaGBKg7 (ORCPT ); Wed, 2 Jul 2014 06:36:59 -0400 Message-ID: <53B3E0C6.3030803@assyoma.it> Date: Wed, 02 Jul 2014 12:36:54 +0200 From: Gionatan Danti MIME-Version: 1.0 To: linux-btrfs@vger.kernel.org CC: Duncan <1i5t5.duncan@cox.net>, g.danti@assyoma.it Subject: Re: Question about fallocate References: <20140702014130.47a5ba75@ws> In-Reply-To: <20140702014130.47a5ba75@ws> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi, > But how did you disable COW? The nodatacow mount option? Setting the > NOCOW attribute on the file or parent-dir (chattr +C)? Something else? > > Because there are caveats to both the mount option and the file > attribute methods. > I used the nodatacow mount point. When doing the test, I had no other subvolume or snapshot. > Other than that, I don't know, but it'd be interesting to see if the > behavior replicates on a current kernel. > Yes, I'll try to replicate it on a 3.14.x based Fedora 20. Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti@assyoma.it - info@assyoma.it GPG public key ID: FF5F32A8