diff options
| author | Shradha Gupta <shradhagupta@linux.microsoft.com> | 2022-07-10 21:11:47 -0700 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2022-07-11 18:53:42 +0000 |
| commit | 52be93558a9b32f5294750c1394d81e31fe11d6d (patch) | |
| tree | 867b177769257c5f8d4dc3be4685e90694d22918 /drivers/hv/hyperv_vmbus.h | |
| parent | 32346491ddf24599decca06190ebca03ff9de7f8 (diff) | |
Drivers: hv: vm_bus: Handle vmbus rescind calls after vmbus is suspended
Add a flag to indicate that the vmbus is suspended so we should ignore
any offer message. Add a new work_queue for rescind msg, so we could drain
it along with other offer work_queues upon suspension.
It was observed that in some hibernation related scenario testing, after
vmbus_bus_suspend() we get rescind offer message for the vmbus. This would
lead to processing of a rescind message for a channel that has already been
suspended.
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220711041147.GA5569@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv/hyperv_vmbus.h')
| -rw-r--r-- | drivers/hv/hyperv_vmbus.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index 4f5b824b16cf..dc673edf053c 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -261,6 +261,13 @@ struct vmbus_connection { struct workqueue_struct *work_queue; struct workqueue_struct *handle_primary_chan_wq; struct workqueue_struct *handle_sub_chan_wq; + struct workqueue_struct *rescind_work_queue; + + /* + * On suspension of the vmbus, the accumulated offer messages + * must be dropped. + */ + bool ignore_any_offer_msg; /* * The number of sub-channels and hv_sock channels that should be |