linux-ext4 - Re: [PATCH 05/47] libext2fs: set BLOCK_UNINIT for non-last blockgroups if all blocks are free

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Message-ID: <20141117224719.GE9693@thunk.org>
Date:	Mon, 17 Nov 2014 17:47:19 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 05/47] libext2fs: set BLOCK_UNINIT for non-last
 blockgroups if all blocks are free

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 <darrick.wong@...cle.com>

Applied, thanks.

					- Ted
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