From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [PATCH] staging: hv: use sync_bitops when interacting with the hypervisor Date: Thu, 7 Apr 2011 15:46:29 -0700 Message-ID: <20110407224629.GA28700@suse.de> References: <1302216598-686-1-git-send-email-haiyangz@microsoft.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1302216598-686-1-git-send-email-haiyangz@microsoft.com> Sender: linux-kernel-owner@vger.kernel.org To: Haiyang Zhang Cc: hjanssen@microsoft.com, kys@microsoft.com, v-abkane@microsoft.com, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org, Olaf Hering , stable List-Id: virtualization@lists.linuxfoundation.org On Thu, Apr 07, 2011 at 03:49:58PM -0700, Haiyang Zhang wrote: > From: Olaf Hering > > 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 Thanks for the backport, now queued up. greg k-h