[hbirr] 15664: Lock the directory while it is parsed.

Lock the directory while it is parsed.
Modified: trunk/reactos/ntoskrnl/ob/namespc.c
  _____

Modified: trunk/reactos/ntoskrnl/ob/namespc.c
--- trunk/reactos/ntoskrnl/ob/namespc.c	2005-05-29 15:17:38 UTC (rev
15663)
+++ trunk/reactos/ntoskrnl/ob/namespc.c	2005-05-29 15:37:47 UTC (rev
15664)
@@ -364,6 +364,7 @@

PWSTR Start;
   PWSTR End;
   PVOID FoundObject;
+  KIRQL oldlvl;

DPRINT("ObpParseDirectory(Object %x, Path %x, *Path %S)\n",
     Object,Path,*Path);
@@ -385,9 +386,11 @@
       *End = 0;
     }

+  KeAcquireSpinLock(&(((PDIRECTORY_OBJECT)Object)->Lock), &oldlvl);
   FoundObject = ObpFindEntryDirectory(Object, Start, Attributes);
   if (FoundObject == NULL)
     {
+      KeReleaseSpinLock(&(((PDIRECTORY_OBJECT)Object)->Lock), oldlvl);
       if (End != NULL)
    {
      *End = L'\';
@@ -399,7 +402,7 @@
    		     STANDARD_RIGHTS_REQUIRED,
    		     NULL,
    		     UserMode);
-
+  KeReleaseSpinLock(&(((PDIRECTORY_OBJECT)Object)->Lock), oldlvl);
   if (End != NULL)
     {
       *End = L'\';