kernel32: Ignore FileIoPriorityHintInfo in SetFileInformationByHandle().

dlls/kernel32/file.c

@@ -1103,7 +1103,6 @@ BOOL WINAPI SetFileInformationByHandle( HANDLE file, FILE_INFO_BY_HANDLE_CLASS c
     case FileStreamInfo:
     case FileIdBothDirectoryInfo:
     case FileIdBothDirectoryRestartInfo:
-    case FileIoPriorityHintInfo:
     case FileFullDirectoryInfo:
     case FileFullDirectoryRestartInfo:
     case FileStorageInfo:
@@ -1118,7 +1117,9 @@ BOOL WINAPI SetFileInformationByHandle( HANDLE file, FILE_INFO_BY_HANDLE_CLASS c
     case FileDispositionInfo:
         status = NtSetInformationFile( file, &io, info, size, FileDispositionInformation );
         break;
-
+    case FileIoPriorityHintInfo:
+        status = NtSetInformationFile( file, &io, info, size, FileIoPriorityHintInformation );
+        break;
     case FileStandardInfo:
     case FileCompressionInfo:
     case FileAttributeTagInfo:

dlls/kernel32/tests/file.c

@@ -4914,6 +4914,7 @@ static void test_SetFileInformationByHandle(void)
     FILE_STANDARD_INFO stdinfo = { {{0}},{{0}},0,FALSE,FALSE };
     FILE_COMPRESSION_INFO compressinfo;
     FILE_DISPOSITION_INFO dispinfo;
+    DECLSPEC_ALIGN(8) FILE_IO_PRIORITY_HINT_INFO hintinfo;
     char tempFileName[MAX_PATH];
     char tempPath[MAX_PATH];
     HANDLE file;
@@ -4950,6 +4951,28 @@ static void test_SetFileInformationByHandle(void)
     ret = pSetFileInformationByHandle(file, FileAttributeTagInfo, &fileattrinfo, sizeof(fileattrinfo));
     ok(!ret && GetLastError() == ERROR_INVALID_PARAMETER, "got %d, error %d\n", ret, GetLastError());
 
+    SetLastError(0xdeadbeef);
+    hintinfo.PriorityHint = MaximumIoPriorityHintType;
+    ret = pSetFileInformationByHandle(file, FileIoPriorityHintInfo, &hintinfo, sizeof(hintinfo));
+    ok(!ret && GetLastError() == ERROR_INVALID_PARAMETER, "got %d, error %d\n", ret, GetLastError());
+
+    hintinfo.PriorityHint = IoPriorityHintNormal;
+    ret = pSetFileInformationByHandle(file, FileIoPriorityHintInfo, &hintinfo, sizeof(hintinfo));
+    ok(ret, "setting FileIoPriorityHintInfo got %d, error %d\n", ret, GetLastError());
+
+    hintinfo.PriorityHint = IoPriorityHintVeryLow;
+    ret = pSetFileInformationByHandle(file, FileIoPriorityHintInfo, &hintinfo, sizeof(hintinfo));
+    ok(ret, "setting FileIoPriorityHintInfo got %d, error %d\n", ret, GetLastError());
+
+    SetLastError(0xdeadbeef);
+    ret = pSetFileInformationByHandle(file, FileIoPriorityHintInfo, &hintinfo, sizeof(hintinfo) - 1);
+    ok(!ret && GetLastError() == ERROR_BAD_LENGTH, "got %d, error %d\n", ret, GetLastError());
+
+    SetLastError(0xdeadbeef);
+    hintinfo.PriorityHint = IoPriorityHintVeryLow - 1;
+    ret = pSetFileInformationByHandle(file, FileIoPriorityHintInfo, &hintinfo, sizeof(hintinfo));
+    ok(!ret && GetLastError() == ERROR_INVALID_PARAMETER, "got %d, error %d\n", ret, GetLastError());
+
     memset(&protinfo, 0, sizeof(protinfo));
     protinfo.StructureVersion = 1;
     protinfo.StructureSize = sizeof(protinfo);

dlls/ntdll/file.c

@@ -2671,6 +2671,18 @@ NTSTATUS WINAPI NtSetInformationFile(HANDLE handle, PIO_STATUS_BLOCK io,
             io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
         break;
 
+    case FileIoPriorityHintInformation:
+        if (len >= sizeof(FILE_IO_PRIORITY_HINT_INFO))
+        {
+            FILE_IO_PRIORITY_HINT_INFO *info = ptr;
+            if (info->PriorityHint < MaximumIoPriorityHintType)
+                TRACE( "ignoring FileIoPriorityHintInformation %u\n", info->PriorityHint );
+            else
+                io->u.Status = STATUS_INVALID_PARAMETER;
+        }
+        else io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
+        break;
+
     case FileAllInformation:
         io->u.Status = STATUS_INVALID_INFO_CLASS;
         break;