From mboxrd@z Thu Jan 1 00:00:00 1970 From: Theodore Ts'o Subject: Re: [PATCH 05/47] libext2fs: set BLOCK_UNINIT for non-last blockgroups if all blocks are free Date: Mon, 17 Nov 2014 17:47:19 -0500 Message-ID: <20141117224719.GE9693@thunk.org> References: <20141107215042.883.49888.stgit@birch.djwong.org> <20141107215114.883.46921.stgit@birch.djwong.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: "Darrick J. Wong" Return-path: Received: from imap.thunk.org ([74.207.234.97]:35217 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751626AbaKQWr0 (ORCPT ); Mon, 17 Nov 2014 17:47:26 -0500 Content-Disposition: inline In-Reply-To: <20141107215114.883.46921.stgit@birch.djwong.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Fri, Nov 07, 2014 at 01:51:14PM -0800, Darrick J. Wong wrote: > Set BLOCK_UNINIT in any group whose blocks are all unused, so long as > it isn't the last group. This helps us speed up future e2fsck runs > and mounts because we don't need to read or checksum block bitmaps for > these groups. > > v2: Take care of this in the library, since e2fsck always updates these > summary counts. > > Signed-off-by: Darrick J. Wong Applied, thanks. - Ted