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X-Comment-To: Linus Torvalds
To: Linus Torvalds <torvalds@osdl.org>
Cc: "Stephen C. Tweedie" <sct@redhat.com>, Andrew Morton <akpm@osdl.org>,
       Jeff Garzik <jeff@garzik.org>,
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       Mingming Cao <cmm@us.ibm.com>, linux-fsdevel@vger.kernel.org,
       Andreas Dilger <adilger@clusterfs.com>
Subject: Re: [Ext2-devel] [RFC 0/13] extents and 48bit ext3
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From: Alex Tomas <alex@clusterfs.com>
Organization: HOME
Date: Sat, 10 Jun 2006 00:56:26 +0400
In-Reply-To: <Pine.LNX.4.64.0606091344290.5498@g5.osdl.org> (Linus Torvalds's message of "Fri, 9 Jun 2006 13:46:28 -0700 (PDT)")
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>>>>> Linus Torvalds (LT) writes:

 LT> On Fri, 9 Jun 2006, Stephen C. Tweedie wrote:
 LT> Btw, where did that 2TB limit number come from? Afaik, it should be 16TB 
 LT> for a 4kB filesystem, no?

2TB => 16K group descriptors * 8 (sizeof(void*) on 64bit arch) => 128K -- slab limit

we have a fix for this as well.

thanks, Alex