linux-ext4 - Re: [PATCH 2/3] quota: add the option to not fail with EDQUOT in block allocation

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Message-ID: <20100520223229.GE16634@thunk.org>
Date:	Thu, 20 May 2010 18:32:29 -0400
From:	tytso@....edu
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH 2/3] quota: add the option to not fail with EDQUOT in
 block allocation

On Wed, Apr 07, 2010 at 04:52:28PM -0500, Eric Sandeen wrote:
> To simplify metadata tracking for delalloc writes, ext4
> will simply claim metadata blocks at allocation time, without
> first speculatively reserving the worst case and then freeing
> what was not used.
> 
> To do this, we need a mechanism to track allocations in
> the quota subsystem, but potentially allow that allocation
> to actually go over quota.
> 
> This patch adds a DQUOT_SPACE_NOFAIL flag and function
> variants for this purpose.
> 
> Signed-off-by: Eric Sandeen <sandeen@...hat.com>

Applied to the ext4 patch queue.

					- Ted
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