From: Jon Derrick <jonathan.derrick@intel.com>
Date: Wed, 27 May 2015 18:26:23 +0000 (-0600)
Subject: NVMe: Memory barrier before queue_count is incremented
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~148^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36a7e993eedb2c3f11de3b686b351f75e1edbbb5;p=pandora-kernel.git

NVMe: Memory barrier before queue_count is incremented

Protects against reordering and/or preempting which would allow the
kthread to access the queue descriptor before it is set up

Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

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