From: Jason Wang <jasowang@redhat.com>
Date: Thu, 20 Jun 2013 04:58:57 +0000 (+0800)
Subject: drivers: hv: check interrupt mask before read_index
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~75^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e91e84fa4cfeb67a9a096f1adaa1a1a692474724;p=pandora-kernel.git

drivers: hv: check interrupt mask before read_index

This patches add a read barriers to force the driver to check the interrupt mask
before read_index. Otherwise we may lost a kick to host.

Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by:  K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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