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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>, Meelis Roos <mroos@linux.ee>
Cc: David Miller <davem@davemloft.net>, linux-scsi@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: fix blk-mq for SPI hosts
Date: Sun, 19 Oct 2014 17:13:56 +0200
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Fix the assumption that we can treat all blk-mq requests as tagged.  For
traditional SCSI that's wrong, as being tagged has a very explicit meaning
on the wire.

This is a little bit different from the version Meelis tested earlier, but
the concept is the same.  I didn't want to add a Tested-by tag as it's
different enough, though.