linux-ext4 - Re: [PATCH 3/3] Add a pair of system calls to make extended file stats available

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Message-ID: <20100701011217.GA5147@mail.oracle.com>
Date:	Wed, 30 Jun 2010 18:12:17 -0700
From:	Joel Becker <Joel.Becker@...cle.com>
To:	David Howells <dhowells@...hat.com>
Cc:	Ulrich Drepper <drepper@...il.com>, viro@...iv.linux.org.uk,
	smfrench@...il.com, jlayton@...hat.com, mcao@...ibm.com,
	aneesh.kumar@...ux.vnet.ibm.com, linux-cifs@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	samba-technical@...ts.samba.org, sjayaraman@...e.de,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 3/3] Add a pair of system calls to make extended file
 stats available

On Wed, Jun 30, 2010 at 12:29:52AM +0100, David Howells wrote:
> Joel Becker <Joel.Becker@...cle.com> wrote:
> 
> > 	The less variable length stuff the better, I think.  At least,
> > for the stuff stat(2) already returns, you should have a fixed-size
> > structure.  Even if I only pass the GIVE_ME_UIDS flag, I don't want to
> > have to deal with the variable size stuff until I've actually asked for
> > esoteric things.  I'll know that the non-UIDS fields are garbage by the
> > fact that I didn't ask for them.
> 
> I was thinking of the fixed length xstat struct plus appendable extensions to
> be defined later.

	I meant this.

Joel

-- 

Life's Little Instruction Book #267

	"Lie on your back and look at the stars."

Joel Becker
Consulting Software Developer
Oracle
E-mail: joel.becker@...cle.com
Phone: (650) 506-8127
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