From: Paul Durrant <paul.durrant@citrix.com>
Date: Fri, 13 Mar 2015 13:51:19 +0000 (+0000)
Subject: Get rid of the MonitorEvent from CACHE context
X-Git-Tag: 8.1.0-rc1~45
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=0951dc6deff265da23bb87894f45d8463da71062;p=pvdrivers%2Fwin%2Fxenbus.git

Get rid of the MonitorEvent from CACHE context

The event is being signalled but nothing ever takes notice of it so one
can only conclude that it is not needed.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
---

diff --git a/src/xenbus/cache.c b/src/xenbus/cache.c
index 9058d56..e2c83a8 100644
--- a/src/xenbus/cache.c
+++ b/src/xenbus/cache.c
@@ -92,7 +92,6 @@ struct _XENBUS_CACHE_CONTEXT {
     PXENBUS_DEBUG_CALLBACK  DebugCallback;
     XENBUS_STORE_INTERFACE  StoreInterface;
     PXENBUS_THREAD          MonitorThread;
-    KEVENT                  MonitorEvent;
     LIST_ENTRY              List;
 };
 
@@ -787,8 +786,6 @@ CacheMonitor(
 
 loop:
         KeReleaseSpinLock(&Context->Lock, Irql);
-
-        KeSetEvent(&Context->MonitorEvent, IO_NO_INCREMENT, FALSE);
     }
 
     Trace("====>\n");
@@ -921,8 +918,6 @@ CacheInitialize(
     InitializeListHead(&(*Context)->List);
     KeInitializeSpinLock(&(*Context)->Lock);
 
-    KeInitializeEvent(&(*Context)->MonitorEvent, NotificationEvent, FALSE);
-
     status = ThreadCreate(CacheMonitor, *Context, &(*Context)->MonitorThread);
     if (!NT_SUCCESS(status))
         goto fail2;
@@ -936,8 +931,6 @@ CacheInitialize(
 fail2:
     Error("fail2\n");
 
-    RtlZeroMemory(&(*Context)->MonitorEvent, sizeof (KEVENT));
-
     RtlZeroMemory(&(*Context)->Lock, sizeof (KSPIN_LOCK));
     RtlZeroMemory(&(*Context)->List, sizeof (LIST_ENTRY));
 
@@ -1004,8 +997,6 @@ CacheTeardown(
     ThreadJoin(Context->MonitorThread);
     Context->MonitorThread = NULL;
 
-    RtlZeroMemory(&Context->MonitorEvent, sizeof (KEVENT));
-
     RtlZeroMemory(&Context->Lock, sizeof (KSPIN_LOCK));
     RtlZeroMemory(&Context->List, sizeof (LIST_ENTRY));