linux-ext4 - Re: [PATCH] mke2fs: use lazy inode init on some discard-able devices

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Message-Id: <E586FDF0-22B6-4FCD-80EB-F33F851AE031@dilger.ca>
Date:	Mon, 20 Sep 2010 23:15:59 -0600
From:	Andreas Dilger <adilger@...ger.ca>
To:	Ted Ts'o <tytso@....edu>
Cc:	Eric Sandeen <sandeen@...hat.com>,
	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] mke2fs: use lazy inode init on some discard-able devices

On Fri, Aug 20, 2010 at 04:41:14PM -0500, Eric Sandeen wrote:
> If a device supports discard -and- returns 0s for discarded blocks,
> then we can skip the inode table initialization -and- the inode table
> zeroing at mkfs time, and skip the lazy init as well since they are
> already zeroed out.

Eric, do you have my patch for skipping the journal zeroing?  If you are already skipping the inode table zeroing (which is my bigger of a deal) then you may as well skip zeroing the journal at the same time.

Cheers, Andreas





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