From: K. Y. Srinivasan <kys@microsoft.com>
Date: Fri, 29 Mar 2013 21:30:38 +0000 (-0700)
Subject: Drivers: hv: vmbus: Fix a bug in hv_need_to_signal()
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~139^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=288fa3e022eb85fa151e0f9bcd15caeb81679af6;p=pandora-kernel.git

Drivers: hv: vmbus: Fix a bug in hv_need_to_signal()

As part of updating the vmbus protocol, the function hv_need_to_signal()
was introduced. This functions helps optimize signalling from guest to
host. The newly added memory barrier is needed to ensure that we correctly
decide when to signal the host.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Reported-by: Olaf Hering <olh@suse.de>
Cc: Stable <stable@vger.kernel.org>  (V3.8+)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

Reading git-diff-tree failed