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From: "Björn JACKE" <bj@sernet.de>
To: Dave Chinner <david@fromorbit.com>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>,
	Linux FS-devel Mailing List <linux-fsdevel@vger.kernel.org>
Subject: Re: size limit of extended attributes
Date: Tue, 5 May 2015 15:38:11 +0200	[thread overview]
Message-ID: <E1Ypd3w-004tWN-1a@intern.SerNet.DE> (raw)
In-Reply-To: <20150501154351.GC15810@dastard>

On 2015-05-02 at 01:43 +1000 Dave Chinner sent off:
> On Thu, Apr 30, 2015 at 03:57:37PM +0200, Björn JACKE wrote:
> > Can we get rid of the 64k size limit for EAs? The API on AIX is the same as on
> > Linux.  But there is a huge size limit - which would help us already a lot.
> 
> No - the maximum xattr size of 64k is encoded into the on-disk
> format of many filesystems and that's not a simple thing to change.

I know ext4 even has a much lower limit. But some filesystems don't have a
limit, and there the kernel 64k limit strikes in. The EA size limit of some
file systems could also be increased. As there is a real use case for that I
guess filesystems would like to be able to support larger EA sizes.

Björn
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  reply	other threads:[~2015-05-05 13:39 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-30 11:33 size limit of extended attributes Björn JACKE
2015-04-30 12:38 ` Trond Myklebust
2015-04-30 13:57   ` Björn JACKE
2015-04-30 14:35     ` Theodore Ts'o
2015-04-30 14:46     ` Boaz Harrosh
2015-04-30 16:06       ` Björn JACKE
2015-04-30 16:56         ` Boaz Harrosh
2015-05-05 13:34           ` Björn JACKE
2015-05-01 15:43     ` Dave Chinner
2015-05-05 13:38       ` Björn JACKE [this message]
2015-05-05 15:43         ` Jan Kara
2015-05-06  1:31           ` Dave Chinner

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