From d6e067d654cf19ddb4d017379cfff660902ffd91 Mon Sep 17 00:00:00 2001
From: Christophe Dumez <chris@qbittorrent.org>
Date: Mon, 3 Dec 2012 20:12:08 +0200
Subject: [PATCH] Revert "Reenable OS cache on Windows"

This reverts commit 8a27c797166e9e8c60779ae516ee8406b79e3aaf.
---
 src/qtlibtorrent/qbtsession.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/qtlibtorrent/qbtsession.cpp b/src/qtlibtorrent/qbtsession.cpp
index da8334287..24e7d8c5c 100755
--- a/src/qtlibtorrent/qbtsession.cpp
+++ b/src/qtlibtorrent/qbtsession.cpp
@@ -405,6 +405,12 @@ void QBtSession::configureSession() {
   int cache_size = pref.diskCacheSize();
   sessionSettings.cache_size = cache_size ? cache_size * 64 : -1;
   qDebug() << "Using a disk cache size of" << pref.diskCacheSize() << "MiB";
+  // Disable OS cache to avoid memory problems (uTorrent behavior)
+#ifdef Q_WS_WIN
+  // Fixes huge memory usage on Windows 7 (especially when checking files)
+  sessionSettings.disk_io_write_mode = session_settings::disable_os_cache;
+  sessionSettings.disk_io_read_mode = session_settings::disable_os_cache;
+#endif
 #if LIBTORRENT_VERSION_MINOR > 15
   sessionSettings.anonymous_mode = pref.isAnonymousModeEnabled();
   if (sessionSettings.anonymous_mode) {