From: Dave Chinner Subject: Re: [PATCH 2/2] ext4: speed up _require_ext4_bigalloc and _require_ext4_mkfs_bigalloc Date: Mon, 8 Sep 2014 19:50:00 +1000 Message-ID: <20140908095000.GD30012@dastard> References: <20140907192110.GC1066@thunk.org> <1410141968-17551-1-git-send-email-tytso@mit.edu> <1410141968-17551-2-git-send-email-tytso@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: fstests@vger.kernel.org, hch@infradead.org, linux-ext4@vger.kernel.org, wangxg.fnst@cn.fujitsu.com, eguan@redhat.com To: Theodore Ts'o Return-path: Received: from ipmail07.adl2.internode.on.net ([150.101.137.131]:32339 "EHLO ipmail07.adl2.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752981AbaIHJuP (ORCPT ); Mon, 8 Sep 2014 05:50:15 -0400 Content-Disposition: inline In-Reply-To: <1410141968-17551-2-git-send-email-tytso@mit.edu> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Sun, Sep 07, 2014 at 10:06:08PM -0400, Theodore Ts'o wrote: > We don't need to make a full-sized file system in order to test > whether "mkfs.ext4 -O bigalloc" works. Why wouldn't you just use the "-n" option? If bigalloc is not supported, that should still fail, right? Cheers, Dave. -- Dave Chinner david@fromorbit.com