From: Dan Williams <dan.j.williams@intel.com>
Date: Sat, 1 May 2010 22:22:55 +0000 (-0700)
Subject: ioat2,3: convert to producer/consumer locking
X-Git-Tag: v2.6.35-rc1~439^2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=074cc47679f8b0931d7d5384e95822d82768f149;p=pandora-kernel.git

ioat2,3: convert to producer/consumer locking

Use separate locks for the descriptor prep (producer) and descriptor
cleanup (consumer) paths.  Allows the producer path to run concurrently
with the cleanup path.  Inspired by Documentation/circular-buffer.txt.

Cc: David Howells <dhowells@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---

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