From: Mark Lord Subject: Re: [PATCH 1/2] fs: Do not dispatch FITRIM through separate super_operation Date: Fri, 19 Nov 2010 10:35:28 -0500 Message-ID: <4CE69940.6040908@teksavvy.com> References: <1290065809-3976-1-git-send-email-lczerner@redhat.com> <20101118130630.GJ6178@parisc-linux.org> <20101118134804.GN5618@dhcp231-156.rdu.redhat.com> <20101118141957.GK6178@parisc-linux.org> <20101118142918.GA18510@infradead.org> <1290100750.3041.72.camel@mulgrave.site> <1290168976.2570.45.camel@dolmen> <4CE68155.50705@teksavvy.com> <20101119140203.GC10039@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: Ted Ts'o , Steven Whitehouse , Lukas Czerner , James Bottomley , Christoph Hellwig Received: from ironport2-out.teksavvy.com ([206.248.154.181]:44184 "EHLO ironport2-out.pppoe.ca" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755019Ab0KSPfb (ORCPT ); Fri, 19 Nov 2010 10:35:31 -0500 In-Reply-To: <20101119140203.GC10039@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On 10-11-19 09:02 AM, Ted Ts'o wrote: >but that's why mount -o discard is not the default. But, oddly, it _is_ the default for mke2fs -t ext4, which really threw me for a loop recently. I though my system had locked up when suddenly everything went dead for a very long time (many minutes) while installing a new system. Then I figured out what was going on. I really believe that "-K" should be the _default_ for mke2fs, as otherwise lots of other people probably also wonder if Linux is killing their SSD at system install time.. Cheers