Date: Mon, 17 Sep 2007 15:00:42 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
To: Nick Piggin <nickpiggin@yahoo.com.au>
cc: Mel Gorman <mel@skynet.ie>,
       Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de>,
       Andrew Morton <akpm@linux-foundation.org>,
       Joern Engel <joern@logfs.org>, andrea@suse.de,
       torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org,
       linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
       William Lee Irwin III <wli@holomorphy.com>, David Chinner <dgc@sgi.com>,
       Jens Axboe <jens.axboe@oracle.com>,
       Badari Pulavarty <pbadari@gmail.com>,
       Maxim Levitsky <maximlevitsky@gmail.com>,
       Fengguang Wu <fengguang.wu@gmail.com>, swin wang <wangswin@gmail.com>,
       totty.lu@gmail.com, hugh@veritas.com
Subject: Re: [00/41] Large Blocksize Support V7 (adds memmap support)
In-Reply-To: <200709161903.37295.nickpiggin@yahoo.com.au>
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References: <20070911060349.993975297@sgi.com> <87ir6c3z2l.fsf@informatik.uni-tuebingen.de>
 <20070916181313.GA16406@skynet.ie> <200709161903.37295.nickpiggin@yahoo.com.au>
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On Sun, 16 Sep 2007, Nick Piggin wrote:

> I don't know how it would prevent fragmentation from building up
> anyway. It's commonly the case that potentially unmovable objects
> are allowed to fill up all of ram (dentries, inodes, etc).

Not in 2.6.23 with ZONE_MOVABLE. Unmovable objects are not allocated from 
ZONE_MOVABLE and thus the memory that can be allocated for them is 
limited.


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