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From: Dave Chinner <david@fromorbit.com>
To: Timothy Shimmin <tes@sgi.com>
Cc: "Linda A. Walsh" <xfs@tlinx.org>, xfs-oss <xfs@oss.sgi.com>
Subject: Re: Question about extended attributes...
Date: Fri, 1 Aug 2008 22:32:53 +1000	[thread overview]
Message-ID: <20080801123253.GG6201@disturbed> (raw)
In-Reply-To: <4892B361.9030900@sgi.com>

On Fri, Aug 01, 2008 at 04:55:29PM +1000, Timothy Shimmin wrote:
> Hi Linda,
> 
> Linda A. Walsh wrote:
> > my man page says extended xfs attributes can have 256-byte names
> > with up to 64K of data.
> > 
> > Is there a limit on the number of extended attributes max data size or
> > name size?
> > 
> > I.e. could I have 1000 attributes with 64K of data each?
> > 
> Yep.
> 
> > Is there a strong reason why the file and data sizes were limited to
> > 256/64K?

....

> I'm not sure why 64K was chosen for a value size limit.

Because changes to EAs are journalled. Hence there must be a bound
size limit because log space is limited.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

  reply	other threads:[~2008-08-01 12:32 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-01  0:11 Question about extended attributes Linda A. Walsh
2008-08-01  6:55 ` Timothy Shimmin
2008-08-01 12:32   ` Dave Chinner [this message]
2008-08-04  5:13     ` Timothy Shimmin

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