Messages in this thread | | | Date | Mon, 18 Sep 2017 16:00:24 +0200 | From | Greg KH <> | Subject | Re: [PATCH V2 1/4] vmbus: don't acquire the mutex in vmbus_hvsock_device_unregister() |
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On Sun, Sep 17, 2017 at 08:54:16PM -0700, kys@exchange.microsoft.com wrote: > From: Dexuan Cui <decui@microsoft.com> > > Due to commit 54a66265d675 ("Drivers: hv: vmbus: Fix rescind handling"), > we need this patch to resolve the below deadlock: > > after we get the mutex in vmbus_hvsock_device_unregister() and call > vmbus_device_unregister() -> device_unregister() -> ... -> device_release() > -> vmbus_device_release(), we'll get a deadlock, because > vmbus_device_release() tries to get the same mutex. > > Signed-off-by: Dexuan Cui <decui@microsoft.com> > Cc: K. Y. Srinivasan <kys@microsoft.com> > Cc: Haiyang Zhang <haiyangz@microsoft.com> > Cc: Stephen Hemminger <sthemmin@microsoft.com> > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
As every one of these patches had questions from me, please break them up into different series, one for 4.14-final, and one for 4.15-rc1.
thanks,
greg k-h
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