linux-kernel - Re: [PATCH] staging: hv: use sync_bitops when interacting with the hypervisor

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Message-ID: <20110407224629.GA28700@suse.de>
Date:	Thu, 7 Apr 2011 15:46:29 -0700
From:	Greg KH <gregkh@...e.de>
To:	Haiyang Zhang <haiyangz@...rosoft.com>
Cc:	hjanssen@...rosoft.com, kys@...rosoft.com, v-abkane@...rosoft.com,
	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
	virtualization@...ts.osdl.org, Olaf Hering <olaf@...fle.de>,
	stable <stable@...nel.org>
Subject: Re: [PATCH] staging: hv: use sync_bitops when interacting with the
 hypervisor

On Thu, Apr 07, 2011 at 03:49:58PM -0700, Haiyang Zhang wrote:
> From: Olaf Hering <olaf@...fle.de>
> 
> Locking is required when tweaking bits located in a shared page, use the
> sync_ version of bitops. Without this change vmbus_on_event() will miss
> events and as a result, vmbus_isr() will not schedule the receive tasklet.
> 
> Backported to 2.6.32 stable kernel by Haiyang Zhang <haiyangz@...rosoft.com>

Thanks for the backport, now queued up.

greg k-h
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