Subject: Re: [PATCH 0/4] linux-2.6-block: deactivating pagecache for
	benchmarks
From: Badari Pulavarty <pbadari@us.ibm.com>
To: Andrew Morton <akpm@osdl.org>
Cc: mail@dirk-gerdes.de, axboe@suse.de, lkml <linux-kernel@vger.kernel.org>
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Date: Fri, 02 Dec 2005 14:33:42 -0800
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On Fri, 2005-12-02 at 13:44 -0800, Andrew Morton wrote:
> Badari Pulavarty <pbadari@us.ibm.com> wrote:
> >
> > Wondering, if this shrinks shared memory pages (since they are backed by
> > tmpfs) ? (which is not what I want).
> 
> It'll reclaim unused pagecache pages.  What effect that has on
> idioticfs^Wtmpfs pages depends on the state of the pages.  If they're
> attached to tmpfs inodes then they won't be reclaimed because they have no
> backing store.  If they're attached to swapcache then they won't be
> reclaimed because they have no superblock.
> 
> So I guess you got lucky.

Wow !! Thank you. Its not that often, I get lucky :)

Thanks,
Badari

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