[NTOS:KE] Improve freeze code in KeBugCheckWithTf

- Don't wait 1 second for each processor
- Use AFFINITY_MASK
- Use Prcb->Number, which is more future proof than KeGetCurrentProcessorNumber
- Improve for loop

ntoskrnl/ke/bug.c

@@ -727,9 +727,6 @@ KeBugCheckWithTf(IN ULONG BugCheckCode,
     PLDR_DATA_TABLE_ENTRY LdrEntry;
     PULONG_PTR HardErrorParameters;
     KIRQL OldIrql;
-#ifdef CONFIG_SMP
-    LONG i = 0;
-#endif
 
     /* Set active bugcheck */
     KeBugCheckActive = TRUE;
@@ -1083,15 +1080,17 @@ KeBugCheckWithTf(IN ULONG BugCheckCode,
         KeBugCheckOwner = Prcb->Number;
 
         /* Freeze the other CPUs */
-        for (i = 0; i < KeNumberProcessors; i++)
+        for (ULONG i = 0; i < KeNumberProcessors; i++)
         {
-            if (i != (LONG)KeGetCurrentProcessorNumber())
+            if (i != Prcb->Number)
             {
-                /* Send the IPI and give them one second to catch up */
-                KiIpiSend(1 << i, IPI_FREEZE);
-                KeStallExecutionProcessor(1000000);
+                /* Send the IPI */
+                KiIpiSend(AFFINITY_MASK(i), IPI_FREEZE);
             }
         }
+
+        /* Give the other CPUs one second to catch up */
+        KeStallExecutionProcessor(1000000);
 #endif
 
         /* Display the BSOD */