[fs] moved temp folder cleanup upstream (per-application level) to avoid per-program retrigger)

src/core/file_sys/savedata_factory.cpp

@@ -57,11 +57,7 @@ std::string GetFutureSaveDataPath(SaveDataSpaceId space_id, SaveDataType type, u
 
 SaveDataFactory::SaveDataFactory(Core::System& system_, ProgramId program_id_,
                                  VirtualDir save_directory_)
-    : system{system_}, program_id{program_id_}, dir{std::move(save_directory_)} {
+    : system{system_}, program_id{program_id_}, dir{std::move(save_directory_)} {}
-    // Delete all temporary storages
-    // On hardware, it is expected that temporary storage be empty at first use.
-    dir->DeleteSubdirectoryRecursive("temp");
-}
 
 SaveDataFactory::~SaveDataFactory() = default;
 

src/core/hle/service/filesystem/filesystem.cpp

@@ -336,6 +336,10 @@ Result FileSystemController::RegisterProcess(
     ProcessId process_id, ProgramId program_id,
     std::shared_ptr<FileSys::RomFSFactory>&& romfs_factory) {
     std::scoped_lock lk{registration_lock};
+    if (registrations.empty()) {
+        const auto save_directory = system.GetFilesystem()->OpenDirectory(Common::FS::GetEdenPathString(Common::FS::EdenPath::SaveDir), FileSys::OpenMode::ReadWrite);
+        if (save_directory != nullptr) save_directory->DeleteSubdirectoryRecursive("temp");
+    }
 
     registrations.emplace(process_id, Registration{
                                           .program_id = program_id,