- Used a fast mutex for the client id structure.

reactos/ntoskrnl/include/internal

diff -u -r1.75 -r1.76
--- ps.h	20 Nov 2004 16:46:05 -0000	1.75
+++ ps.h	27 Nov 2004 19:41:55 -0000	1.76
@@ -16,7 +16,7 @@

  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

-/* $Id: ps.h,v 1.75 2004/11/20 16:46:05 weiden Exp $

+/* $Id: ps.h,v 1.76 2004/11/27 19:41:55 hbirr Exp $

  *
  * FILE:            ntoskrnl/ke/kthread.c
  * PURPOSE:         Process manager definitions

@@ -653,7 +653,7 @@

   LONG ref;
   HANDLE Handle;
   LIST_ENTRY Entry;

-  LONG Lock;

+  FAST_MUTEX Lock;

   union
   {
     struct _EPROCESS *Process;

reactos/ntoskrnl/ps

diff -u -r1.2 -r1.3
--- cid.c	12 Oct 2004 20:00:40 -0000	1.2
+++ cid.c	27 Nov 2004 19:41:55 -0000	1.3
@@ -1,4 +1,4 @@

-/* $Id: cid.c,v 1.2 2004/10/12 20:00:40 navaraf Exp $

+/* $Id: cid.c,v 1.3 2004/11/27 19:41:55 hbirr Exp $

  *
  * COPYRIGHT:         See COPYING in the top level directory
  * PROJECT:           ReactOS kernel

@@ -66,7 +66,7 @@

   if(cido != NULL)
   {
     cido->ref = 1;

-    cido->Lock = 0;

+    ExInitializeFastMutex(&cido->Lock);

     cido->Obj.Object = Object;
 
     KeAcquireSpinLock(&CidLock, &oldIrql);

@@ -147,35 +147,16 @@

   
   if(Found != NULL)
   {

-    ULONG Attempt = 0;
-    for (;;)
-    {
-      if(InterlockedCompareExchange(&Found->Lock, 1, 0) == 0)
-      {
-        /* got the lock, bail */
-        break;
-      }
-
-      if(Attempt++ >= 1)
-      {
-        /* wait a little longer */
-        KeDelayExecutionThread(KernelMode, FALSE, &LongDelay);
-      }
-      else
-      {
-        /* try again, just wait shortly */
-        KeDelayExecutionThread(KernelMode, FALSE, &ShortDelay);
-      }
-    }

+    ExAcquireFastMutex(&Found->Lock);

   }

-  

+

   return Found;
 }
 
 VOID
 PsUnlockCidObject(PCID_OBJECT CidObject)
 {

-  InterlockedExchange(&CidObject->Lock, 0);

+  ExReleaseFastMutex(&CidObject->Lock);

   PspDereferenceCidObject(CidObject);
 }