Re: [win-pv-devel] [PATCH 6/6] Ensure defunct watches have NULL handles

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx [mailto:win-pv-devel-
> bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Owen Smith
> Sent: 29 October 2015 14:50
> To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Owen Smith
> Subject: [win-pv-devel] [PATCH 6/6] Ensure defunct watches have NULL
> handles
> 
> Signed-off-by: Owen Smith <owen.smith@xxxxxxxxxx>

Acked-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

> ---
>  src/xeniface/wmi.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/src/xeniface/wmi.c b/src/xeniface/wmi.c
> index 0f63ef5..c73e990 100644
> --- a/src/xeniface/wmi.c
> +++ b/src/xeniface/wmi.c
> @@ -884,6 +884,7 @@ VOID WatchCallbackThread(__in PVOID StartContext)
> {
> 
> XenIfaceDebugPrint(WARNING,"SessionSuspendResumeUnwatch %p\n",
> watch->watchhandle);
> 
>                          XENBUS_STORE(WatchRemove, &watch->fdoData-
> >StoreInterface, watch->watchhandle);
> +                        watch->watchhandle = NULL;
>                          StartWatch(watch->fdoData, watch);
>                      }
>                  }
> @@ -1187,6 +1188,7 @@ RemoveSessionLocked(XENIFACE_FDO *fdoData,
>      SessionRemoveWatchesLocked(session);
>      if (session->transaction != NULL) {
>          XENBUS_STORE(TransactionEnd, &fdoData->StoreInterface, session-
> >transaction, FALSE);
> +        session->transaction = NULL;
>      }
>      session->closing = TRUE;
>      KeSetEvent(&session->SessionChangedEvent, IO_NO_INCREMENT,
> FALSE);
> @@ -1230,6 +1232,7 @@ void
> SessionUnwatchWatchesLocked(XenStoreSession *session)
>          XenIfaceDebugPrint(TRACE,"Suspend unwatch %p\n", watch-
> >watchhandle);
> 
>          XENBUS_STORE(WatchRemove, &watch->fdoData->StoreInterface,
> watch->watchhandle);
> +        watch->watchhandle = NULL;
>          watch = (XenStoreWatch *)watch->listentry.Flink;
>      }
>      XenIfaceDebugPrint(TRACE, "WATCHLIST for session %p-----------
> \n",session);
> --
> 1.9.4.msysgit.1
> 
> 
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