linux-kernel - Re: [PATCH 4/5] ext4: fallocate support in ext4

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Message-ID: <20070514133445.GA28875@atrey.karlin.mff.cuni.cz>
Date:	Mon, 14 May 2007 15:34:46 +0200
From:	Jan Kara <jack@...e.cz>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andreas Dilger <adilger@...sterfs.com>,
	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org, xfs@....sgi.com, suparna@...ibm.com,
	cmm@...ibm.com
Subject: Re: [PATCH 4/5] ext4: fallocate support in ext4

> On Mon, 7 May 2007 05:37:54 -0600
> 
> Does the proposed implementation handle quotas correctly, btw?  Has that
> been tested?
  It seems to handle quotas fine - the block allocation itself does not
differ from the usual case, just the extents in the tree are marked as
uninitialized...
  The only question is whether DQUOT_PREALLOC_BLOCK() shouldn't be
called instead of DQUOT_ALLOC_BLOCK(). Then fallocate() won't be able to
allocate anything after the softlimit has been reached which makes some
sence but probably current behavior is kind-of less surprising.

									Honza
-- 
Jan Kara <jack@...e.cz>
SuSE CR Labs
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