ntdll: Always fill PagefileUsage counter with a nonzero value on Linux.

dlls/ntdll/process.c

@@ -152,9 +152,12 @@ static void fill_VM_COUNTERS(VM_COUNTERS* pvmi)
             pvmi->PeakWorkingSetSize = (ULONG64)value * 1024;
         else if (sscanf(line, "VmRSS: %lu", &value))
             pvmi->WorkingSetSize = (ULONG64)value * 1024;
+        else if (sscanf(line, "RssAnon: %lu", &value))
+            pvmi->PagefileUsage += (ULONG64)value * 1024;
         else if (sscanf(line, "VmSwap: %lu", &value))
-            pvmi->PeakPagefileUsage = pvmi->PagefileUsage = (ULONG64)value * 1024;
+            pvmi->PagefileUsage += (ULONG64)value * 1024;
     }
+    pvmi->PeakPagefileUsage = pvmi->PagefileUsage;
 
     fclose(f);
 }

dlls/ntdll/tests/info.c

@@ -1096,6 +1096,7 @@ static void test_query_process_vm(void)
     /* Check if we have some return values */
     dump_vm_counters("VM counters for GetCurrentProcess", &pvi);
     ok( pvi.WorkingSetSize > 0, "Expected a WorkingSetSize > 0\n");
+    ok( pvi.PagefileUsage > 0, "Expected a PagefileUsage > 0\n");
 
     process = OpenProcess(PROCESS_VM_READ, FALSE, GetCurrentProcessId());
     status = pNtQueryInformationProcess(process, ProcessVmCounters, &pvi, sizeof(pvi), NULL);
@@ -1115,6 +1116,7 @@ static void test_query_process_vm(void)
     /* Check if we have some return values */
     dump_vm_counters("VM counters for GetCurrentProcessId", &pvi);
     ok( pvi.WorkingSetSize > 0, "Expected a WorkingSetSize > 0\n");
+    ok( pvi.PagefileUsage > 0, "Expected a PagefileUsage > 0\n");
 
     CloseHandle(process);
 }

server/process.c

@@ -1397,9 +1397,12 @@ DECL_HANDLER(get_process_vm_counters)
                     reply->peak_working_set_size = (mem_size_t)value * 1024;
                 else if (sscanf( line, "VmRSS: %lu", &value ))
                     reply->working_set_size = (mem_size_t)value * 1024;
+                else if (sscanf( line, "RssAnon: %lu", &value ))
+                    reply->pagefile_usage += (mem_size_t)value * 1024;
                 else if (sscanf( line, "VmSwap: %lu", &value ))
-                    reply->peak_pagefile_usage = reply->pagefile_usage = (mem_size_t)value * 1024;
+                    reply->pagefile_usage += (mem_size_t)value * 1024;
             }
+            reply->peak_pagefile_usage = reply->pagefile_usage;
             fclose( f );
         }
         else set_error( STATUS_ACCESS_DENIED );

server/protocol.def

@@ -853,8 +853,8 @@ struct rawinput_device
     mem_size_t virtual_size;                    /* virtual memory in bytes */
     mem_size_t peak_working_set_size;           /* peak real memory in bytes */
     mem_size_t working_set_size;                /* real memory in bytes */
-    mem_size_t pagefile_usage;                  /* swapped-out memory in bytes */
-    mem_size_t peak_pagefile_usage;             /* peak swapped-out memory in bytes */
+    mem_size_t pagefile_usage;                  /* commit charge in bytes */
+    mem_size_t peak_pagefile_usage;             /* peak commit charge in bytes */
 @END