From: K. Y. Srinivasan <kys@microsoft.com>
Date: Sat, 27 Aug 2011 18:31:33 +0000 (-0700)
Subject: Staging: hv: vmbus: Properly deal with de-registering channel callback
X-Git-Tag: v3.2-rc1~169^2^2~829
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dad76bf73fc20b42d020fe5a93dbe4b4868e7681;p=pandora-kernel.git

Staging: hv: vmbus: Properly deal with de-registering channel callback

Ensure that we correctly handle racing invocations of the channel callback
when the channel is being closed. We do this using the channel's inbound_lock.
A side-effect of this strategy is that we avoid repeatedly picking up this lock
as we drain the inbound ring-buffer.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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