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Date: Mon, 23 Aug 2004 12:07:33 -0400
From: Jeff Garzik <jgarzik@pobox.com>
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To: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
CC: Jens Axboe <axboe@suse.de>, Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: serialize access to ide device
References: <20040802131150.GR10496@suse.de> <200408211913.47982.bzolnier@elka.pw.edu.pl> <20040823121540.GN2301@suse.de> <200408231702.54426.bzolnier@elka.pw.edu.pl>
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As a tangent...


Per-host synchronization is REQUIRED for controllers which indicate 
"simplex" BMDMA.  And I think for some strange non-simplex controllers 
too (though I guess they could be classified as simplex).

	Jeff