From: Ted Ts'o Subject: Re: [PATCH 2/3] mke2fs: skip zeroing journal blocks Date: Sat, 11 Jun 2011 12:21:40 -0400 Message-ID: <20110611162139.GL11207@thunk.org> References: <1307700019-4551-1-git-send-email-adilger@whamcloud.com> <1307700019-4551-2-git-send-email-adilger@whamcloud.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Andreas Dilger Return-path: Received: from li9-11.members.linode.com ([67.18.176.11]:55648 "EHLO test.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750955Ab1FKQVm (ORCPT ); Sat, 11 Jun 2011 12:21:42 -0400 Content-Disposition: inline In-Reply-To: <1307700019-4551-2-git-send-email-adilger@whamcloud.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Fri, Jun 10, 2011 at 04:00:18AM -0600, Andreas Dilger wrote: > Add the ability to skip zeroing journal blocks on disk. This can > significantly speed up mke2fs with large journals. At worst the > uninitialized journal is only a very short-term risk (if at all), > because the journal will be overwritten on any new filesystem as > soon as any significant amount of data is written to disk, and > the new journal TID would need to match the offset/TID of an old > commit block still left on disk. > > Signed-off-by: Andreas Dilger Added to the next branch, thanks. - Ted