[NTOSKRNL]

- ObReferenceObject() does NOT return an NTSTATUS. It returns the new reference count. Remove pointless NT_SUCCESS check
- Enable interrupts in amd54 page fault handler before calling MmAccessFault
- Add missing MmDecommittedPte for amd64

svn path=/trunk/; revision=56265

reactos/ntoskrnl/cache/section/swapout.c

@@ -349,13 +349,7 @@ MmpPageOutPhysicalAddress(PFN_NUMBER Page)
                 ExReleaseFastMutex(&RmapListLock);
                 goto bail;
             }
-            Status = ObReferenceObject(Process);
-            if (!NT_SUCCESS(Status))
-            {
-                DPRINT("bail\n");
-                ExReleaseFastMutex(&RmapListLock);
-                goto bail;
-            }
+            ObReferenceObject(Process);
             ProcRef = TRUE;
             AddressSpace = &Process->Vm;
         }

reactos/ntoskrnl/ke/amd64/trap.S

@@ -416,6 +416,9 @@ FUNC KiPageFault
     mov rdx, cr2
     mov [rbp  + KTRAP_FRAME_FaultAddress], rdx
 
+    /* Enable interrupts for the page fault handler */
+    sti
+
     /* Call page fault handler */
     mov ecx, [rbp + KTRAP_FRAME_ErrorCode] // StoreInstruction
     and ecx, 1
@@ -429,6 +432,9 @@ FUNC KiPageFault
     test eax, eax
     jge PageFaultReturn
 
+    /* Disable interrupts again for the debugger */
+    cli
+
     /* Set parameter 1 to error code */
     mov r9d, [rbp + KTRAP_FRAME_ErrorCode]
 

reactos/ntoskrnl/mm/amd64/init.c

@@ -34,6 +34,9 @@ MMPTE DemandZeroPte  = {{MM_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS}};
 MMPTE PrototypePte = {{(MM_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS) |
                       PTE_PROTOTYPE | (MI_PTE_LOOKUP_NEEDED << 32)}};
 
+/* Template PTE for decommited page */
+MMPTE MmDecommittedPte = {{MM_DECOMMIT << MM_PTE_SOFTWARE_PROTECTION_BITS}};
+
 /* Address ranges */
 PVOID MiSessionViewEnd;
 PVOID MiSystemPteSpaceStart;