linux-kernel - block device without page cache buffering

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Date:	Thu, 30 Dec 2010 15:37:31 +0100
From:	folkert <folkert@...heusden.com>
To:	linux-kernel@...r.kernel.org
Subject: block device without page cache buffering

Hi,

What should a block device driver need to do to get all read/write
requests without any buffering from the page cache?
I think the iscsi initiation does this.
This is needed to get an existing pseudo block device to function as a
shared storage so that a cluster filesystem (gpfs/ocfs) can be put on it (nbd).

Folkert van Heusden

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