linux-ext4 - Re: [PATCH 1/4] Adds general codes to enforces project quota limits

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Date:	Wed, 24 Sep 2014 19:10:20 +0200
From:	Jan Kara <jack@...e.cz>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Li Xi <pkuelelixi@...il.com>, linux-fsdevel@...r.kernel.org,
	linux-ext4@...r.kernel.org, linux-api@...r.kernel.org,
	tytso@....edu, adilger@...ger.ca, jack@...e.cz,
	viro@...iv.linux.org.uk, dmonakhov@...nvz.org
Subject: Re: [PATCH 1/4] Adds general codes to enforces project quota limits

On Wed 24-09-14 09:14:17, Christoph Hellwig wrote:
> > -#define MAXQUOTAS 2
> > +#define MAXQUOTAS 3
> 
> This bloats every single inode in the system.  I think this would be a
> good opportunity to move i_dquot into the per-filesystem structures
> and provide a little get_dquots methods to get at them from the
> quota code.
  Yeah, I'm aware of that but I decided I won't bother Li Xi with that
since it's independent issue and 8 bytes aren't that terrible. Personally
I somewhat prefer what I did in
http://www.spinics.net/lists/linux-fsdevel/msg74927.html
where we don't introduce additional method but rather a table with field
offsets in superblock. If people agree with this, I can cook up a patch for
quota relatively quickly.

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