First part of change to remove LLVFS from the Viewer. Consists of code changes to remove LLVFS and LLVFSThread classes along with the associated source files. The existing llvfs folder is renamed to llcache. Also includes changes to CMake script in many places to reflect changes. Eventually, llvfile source file and class will be renamed but that is not in this change.

53 files changed, 146 insertions, 509 deletions

diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 88667bdc11..ccf7ad675f 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -39,7 +39,7 @@ include(LLPlugin)
 include(LLPrimitive)
 include(LLRender)
 include(LLUI)
-include(LLVFS)
+include(LLCache)
 include(LLWindow)
 include(LLXML)
 include(NDOF)
@@ -84,7 +84,7 @@ include_directories(
     ${LLPRIMITIVE_INCLUDE_DIRS}
     ${LLRENDER_INCLUDE_DIRS}
     ${LLUI_INCLUDE_DIRS}
-    ${LLVFS_INCLUDE_DIRS}
+    ${LLCACHE_INCLUDE_DIRS}
     ${LLWINDOW_INCLUDE_DIRS}
     ${LLXML_INCLUDE_DIRS}
     ${LLLOGIN_INCLUDE_DIRS}
@@ -1995,7 +1995,7 @@ target_link_libraries(${VIEWER_BINARY_NAME}
     ${LLRENDER_LIBRARIES}
     ${FREETYPE_LIBRARIES}
     ${LLUI_LIBRARIES}
-    ${LLVFS_LIBRARIES}
+    ${LLCACHE_LIBRARIES}
     ${LLWINDOW_LIBRARIES}
     ${LLXML_LIBRARIES}
     ${LLMATH_LIBRARIES}
@@ -2467,7 +2467,7 @@ if (LL_TESTS)
   set(test_libs
     ${LLMESSAGE_LIBRARIES}
     ${WINDOWS_LIBRARIES}
-    ${LLVFS_LIBRARIES}
+    ${LLCACHE_LIBRARIES}
     ${LLMATH_LIBRARIES}
     ${LLCOMMON_LIBRARIES}
     ${GOOGLEMOCK_LIBRARIES}
@@ -2482,7 +2482,7 @@ if (LL_TESTS)
 
   set(test_libs
     ${WINDOWS_LIBRARIES}
-    ${LLVFS_LIBRARIES}
+    ${LLCACHE_LIBRARIES}
     ${LLMATH_LIBRARIES}
     ${LLCOMMON_LIBRARIES}
     ${LLMESSAGE_LIBRARIES}
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index a00aa86d78..592418d50d 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -2835,17 +2835,6 @@
       <key>Value</key>
       <integer>-1</integer>
     </map>
-    <key>DebugStatModeVFSPendingOps</key>
-    <map>
-      <key>Comment</key>
-      <string>Mode of stat in Statistics floater</string>
-      <key>Persist</key>
-      <integer>1</integer>
-      <key>Type</key>
-      <string>S32</string>
-      <key>Value</key>
-      <integer>-1</integer>
-    </map>
     <key>DebugStatModeTimeDialation</key>
     <map>
       <key>Comment</key>
@@ -3638,17 +3627,6 @@
       <key>Value</key>
       <integer>4</integer>
     </map>
-    <key>DumpVFSCaches</key>
-    <map>
-      <key>Comment</key>
-      <string>Dump VFS caches on startup.</string>
-      <key>Persist</key>
-      <integer>1</integer>
-      <key>Type</key>
-      <string>Boolean</string>
-      <key>Value</key>
-      <integer>0</integer>
-    </map>
     <key>DynamicCameraStrength</key>
     <map>
       <key>Comment</key>
@@ -14250,28 +14228,6 @@
       <key>Value</key>
       <string/>
     </map>
-    <key>VFSOldSize</key>
-    <map>
-      <key>Comment</key>
-      <string>[DO NOT MODIFY] Controls resizing of local file cache</string>
-      <key>Persist</key>
-      <integer>1</integer>
-      <key>Type</key>
-      <string>U32</string>
-      <key>Value</key>
-      <integer>0</integer>
-    </map>
-    <key>VFSSalt</key>
-    <map>
-      <key>Comment</key>
-      <string>[DO NOT MODIFY] Controls local file caching behavior</string>
-      <key>Persist</key>
-      <integer>1</integer>
-      <key>Type</key>
-      <string>U32</string>
-      <key>Value</key>
-      <integer>1</integer>
-    </map>
     <key>VelocityInterpolate</key>
     <map>
       <key>Comment</key>
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 75574df00e..b9e3a44786 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -115,7 +115,6 @@
 #include "llurlaction.h"
 #include "llurlentry.h"
 #include "llvfile.h"
-#include "llvfsthread.h"
 #include "llvolumemgr.h"
 #include "llxfermanager.h"
 #include "llphysicsextensions.h"
@@ -339,9 +338,6 @@ bool			gUseWireframe = FALSE;
 //use for remember deferred mode in wireframe switch
 bool			gInitialDeferredModeForWireframe = FALSE;
 
-// VFS globals - see llappviewer.h
-LLVFS* gStaticVFS = NULL;
-
 LLMemoryInfo gSysMemory;
 U64Bytes gMemoryAllocated(0); // updated in display_stats() in llviewerdisplay.cpp
 
@@ -430,12 +426,6 @@ void init_default_trans_args()
 	default_trans_args.insert("create_account_url");
 }
 
-//----------------------------------------------------------------------------
-// File scope definitons
-const char *VFS_DATA_FILE_BASE = "data.db2.x.";
-const char *VFS_INDEX_FILE_BASE = "index.db2.x.";
-
-
 struct SettingsFile : public LLInitParam::Block<SettingsFile>
 {
 	Mandatory<std::string>	name;
@@ -967,10 +957,6 @@ bool LLAppViewer::init()
 
 	// *Note: this is where gViewerStats used to be created.
 
-	//
-	// Initialize the VFS, and gracefully handle initialization errors
-	//
-
 	if (!initCache())
 	{
 		LL_WARNS("InitInfo") << "Failed to init cache" << LL_ENDL;
@@ -1326,7 +1312,6 @@ static LLTrace::BlockTimerStatHandle FTM_TEXTURE_CACHE("Texture Cache");
 static LLTrace::BlockTimerStatHandle FTM_DECODE("Image Decode");
 static LLTrace::BlockTimerStatHandle FTM_FETCH("Image Fetch");
 
-static LLTrace::BlockTimerStatHandle FTM_VFS("VFS Thread");
 static LLTrace::BlockTimerStatHandle FTM_LFS("LFS Thread");
 static LLTrace::BlockTimerStatHandle FTM_PAUSE_THREADS("Pause Threads");
 static LLTrace::BlockTimerStatHandle FTM_IDLE("Idle");
@@ -1559,17 +1544,13 @@ bool LLAppViewer::doFrame()
 				work_pending += updateTextureThreads(max_time);
 
 				{
-					LL_RECORD_BLOCK_TIME(FTM_VFS);
- 					io_pending += LLVFSThread::updateClass(1);
-				}
-				{
 					LL_RECORD_BLOCK_TIME(FTM_LFS);
  					io_pending += LLLFSThread::updateClass(1);
 				}
 
 				if (io_pending > 1000)
 				{
-					ms_sleep(llmin(io_pending/100,100)); // give the vfs some time to catch up
+					ms_sleep(llmin(io_pending/100,100)); // give the lfs some time to catch up
 				}
 
 				total_work_pending += work_pending ;
@@ -1586,7 +1567,6 @@ bool LLAppViewer::doFrame()
 			}
 			if(!total_io_pending) //pause file threads if nothing to process.
 			{
-				LLVFSThread::sLocal->pause();
 				LLLFSThread::sLocal->pause();
 			}
 
@@ -1648,12 +1628,11 @@ S32 LLAppViewer::updateTextureThreads(F32 max_time)
 	return work_pending;
 }
 
-void LLAppViewer::flushVFSIO()
+void LLAppViewer::flushLFSIO()
 {
 	while (1)
 	{
-		S32 pending = LLVFSThread::updateClass(0);
-		pending += LLLFSThread::updateClass(0);
+		S32 pending = LLLFSThread::updateClass(0);
 		if (!pending)
 		{
 			break;
@@ -1741,7 +1720,7 @@ bool LLAppViewer::cleanup()
 
 	LLKeyframeDataCache::clear();
 
- 	// End TransferManager before deleting systems it depends on (Audio, VFS, AssetStorage)
+ 	// End TransferManager before deleting systems it depends on (Audio, AssetStorage)
 #if 0 // this seems to get us stuck in an infinite loop...
 	gTransferManager.cleanup();
 #endif
@@ -1808,8 +1787,8 @@ bool LLAppViewer::cleanup()
 
 	LL_INFOS() << "Cache files removed" << LL_ENDL;
 
-	// Wait for any pending VFS IO
-	flushVFSIO();
+	// Wait for any pending LFS IO
+	flushLFSIO();
 	LL_INFOS() << "Shutting down Views" << LL_ENDL;
 
 	// Destroy the UI
@@ -1895,13 +1874,7 @@ bool LLAppViewer::cleanup()
 	SUBSYSTEM_CLEANUP(LLWorldMapView);
 	SUBSYSTEM_CLEANUP(LLFolderViewItem);
 
-	//
-	// Shut down the VFS's AFTER the decode manager cleans up (since it cleans up vfiles).
-	// Also after viewerwindow is deleted, since it may have image pointers (which have vfiles)
-	// Also after shutting down the messaging system since it has VFS dependencies
-
-	//
-	LL_INFOS() << "Cleaning up VFS" << LL_ENDL;
+	LL_INFOS() << "Cleaning up VFILE" << LL_ENDL;
 	SUBSYSTEM_CLEANUP(LLVFile);
 
 	LL_INFOS() << "Saving Data" << LL_ENDL;
@@ -1990,7 +1963,6 @@ bool LLAppViewer::cleanup()
 		pending += LLAppViewer::getTextureCache()->update(1); // unpauses the worker thread
 		pending += LLAppViewer::getImageDecodeThread()->update(1); // unpauses the image thread
 		pending += LLAppViewer::getTextureFetch()->update(1); // unpauses the texture fetch thread
-		pending += LLVFSThread::updateClass(0);
 		pending += LLLFSThread::updateClass(0);
 		F64 idle_time = idleTimer.getElapsedTimeF64();
 		if(!pending)
@@ -2066,26 +2038,10 @@ bool LLAppViewer::cleanup()
 	LLUIImageList::getInstance()->cleanUp();
 
 	// This should eventually be done in LLAppViewer
-	SUBSYSTEM_CLEANUP(LLVFSThread);
 	SUBSYSTEM_CLEANUP(LLLFSThread);
 
-#ifndef LL_RELEASE_FOR_DOWNLOAD
-	LL_INFOS() << "Auditing VFS" << LL_ENDL;
-	if(gVFS)
-	{
-		gVFS->audit();
-	}
-#endif
-
 	LL_INFOS() << "Misc Cleanup" << LL_ENDL;
 
-	// For safety, the LLVFS has to be deleted *after* LLVFSThread. This should be cleaned up.
-	// (LLVFS doesn't know about LLVFSThread so can't kill pending requests) -Steve
-	delete gStaticVFS;
-	gStaticVFS = NULL;
-	delete gVFS;
-	gVFS = NULL;
-
 	gSavedSettings.cleanup();
 	LLUIColorTable::instance().clear();
 
@@ -2170,7 +2126,6 @@ bool LLAppViewer::initThreads()
 
 	LLImage::initParamSingleton(gSavedSettings.getBOOL("TextureNewByteRange"),gSavedSettings.getS32("TextureReverseByteRange"));
 
-	LLVFSThread::initClass(enable_threads && false);
 	LLLFSThread::initClass(enable_threads && false);
 
 	// Image decoding
@@ -3171,10 +3126,6 @@ LLSD LLAppViewer::getViewerInfo() const
     info["GPU_SHADERS"] = gSavedSettings.getBOOL("RenderDeferred") ? "Enabled" : "Disabled";
     info["TEXTURE_MEMORY"] = gSavedSettings.getS32("TextureMemory");
 
-    LLSD substitution;
-    substitution["datetime"] = (S32)(gVFS ? gVFS->creationTime() : 0);
-    info["VFS_TIME"] = LLTrans::getString("AboutTime", substitution);
-
 #if LL_DARWIN
     info["HIDPI"] = gHiDPISupport;
 #endif
@@ -3915,7 +3866,7 @@ void LLAppViewer::forceQuit()
 void LLAppViewer::fastQuit(S32 error_code)
 {
 	// finish pending transfers
-	flushVFSIO();
+	flushLFSIO();
 	// let sim know we're logging out
 	sendLogoutRequest();
 	// flush network buffers by shutting down messaging system
@@ -4101,39 +4052,6 @@ void LLAppViewer::migrateCacheDirectory()
 #endif // LL_WINDOWS || LL_DARWIN
 }
 
-void dumpVFSCaches()
-{
-	LL_INFOS() << "======= Static VFS ========" << LL_ENDL;
-	gStaticVFS->listFiles();
-#if LL_WINDOWS
-	LL_INFOS() << "======= Dumping static VFS to StaticVFSDump ========" << LL_ENDL;
-	WCHAR w_str[MAX_PATH];
-	GetCurrentDirectory(MAX_PATH, w_str);
-	S32 res = LLFile::mkdir("StaticVFSDump");
-	if (res == -1)
-	{
-		LL_WARNS() << "Couldn't create dir StaticVFSDump" << LL_ENDL;
-	}
-	SetCurrentDirectory(utf8str_to_utf16str("StaticVFSDump").c_str());
-	gStaticVFS->dumpFiles();
-	SetCurrentDirectory(w_str);
-#endif
-
-	LL_INFOS() << "========= Dynamic VFS ====" << LL_ENDL;
-	gVFS->listFiles();
-#if LL_WINDOWS
-	LL_INFOS() << "========= Dumping dynamic VFS to VFSDump ====" << LL_ENDL;
-	res = LLFile::mkdir("VFSDump");
-	if (res == -1)
-	{
-		LL_WARNS() << "Couldn't create dir VFSDump" << LL_ENDL;
-	}
-	SetCurrentDirectory(utf8str_to_utf16str("VFSDump").c_str());
-	gVFS->dumpFiles();
-	SetCurrentDirectory(w_str);
-#endif
-}
-
 //static
 U32 LLAppViewer::getTextureCacheVersion()
 {
@@ -4219,172 +4137,20 @@ bool LLAppViewer::initCache()
 	const S32 MB = 1024 * 1024;
 	const S64 MIN_CACHE_SIZE = 256 * MB;
 	const S64 MAX_CACHE_SIZE = 9984ll * MB;
-	const S64 MAX_VFS_SIZE = 1024 * MB; // 1 GB
 
 	S64 cache_size = (S64)(gSavedSettings.getU32("CacheSize")) * MB;
 	cache_size = llclamp(cache_size, MIN_CACHE_SIZE, MAX_CACHE_SIZE);
 
-	S64 vfs_size = llmin((S64)((cache_size * 2) / 10), MAX_VFS_SIZE);
-	S64 texture_cache_size = cache_size - vfs_size;
+	S64 texture_cache_size = cache_size;
 
 	S64 extra = LLAppViewer::getTextureCache()->initCache(LL_PATH_CACHE, texture_cache_size, texture_cache_mismatch);
 	texture_cache_size -= extra;
 
-
 	LLVOCache::getInstance()->initCache(LL_PATH_CACHE, gSavedSettings.getU32("CacheNumberOfRegionsForObjects"), getObjectCacheVersion());
 
-	LLSplashScreen::update(LLTrans::getString("StartupInitializingVFS"));
-
-	// Init the VFS
-	vfs_size = llmin(vfs_size + extra, MAX_VFS_SIZE);
-	vfs_size = (vfs_size / MB) * MB; // make sure it is MB aligned
-	U32 vfs_size_u32 = (U32)vfs_size;
-	U32 old_vfs_size = gSavedSettings.getU32("VFSOldSize") * MB;
-	bool resize_vfs = (vfs_size_u32 != old_vfs_size);
-	if (resize_vfs)
-	{
-		gSavedSettings.setU32("VFSOldSize", vfs_size_u32 / MB);
-	}
-	LL_INFOS("AppCache") << "VFS CACHE SIZE: " << vfs_size / (1024*1024) << " MB" << LL_ENDL;
-
-	// This has to happen BEFORE starting the vfs
-	// time_t	ltime;
-	srand(time(NULL));		// Flawfinder: ignore
-	U32 old_salt = gSavedSettings.getU32("VFSSalt");
-	U32 new_salt;
-	std::string old_vfs_data_file;
-	std::string old_vfs_index_file;
-	std::string new_vfs_data_file;
-	std::string new_vfs_index_file;
-	std::string static_vfs_index_file;
-	std::string static_vfs_data_file;
-
-	if (gSavedSettings.getBOOL("AllowMultipleViewers"))
-	{
-		// don't mess with renaming the VFS in this case
-		new_salt = old_salt;
-	}
-	else
-	{
-		do
-		{
-			new_salt = rand();
-		} while(new_salt == old_salt);
-	}
-
-	old_vfs_data_file = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, VFS_DATA_FILE_BASE) + llformat("%u", old_salt);
-
-	// make sure this file exists
-	llstat s;
-	S32 stat_result = LLFile::stat(old_vfs_data_file, &s);
-	if (stat_result)
-	{
-		// doesn't exist, look for a data file
-		std::string mask;
-		mask = VFS_DATA_FILE_BASE;
-		mask += "*";
-
-		std::string dir;
-		dir = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, "");
-
-		std::string found_file;
-		LLDirIterator iter(dir, mask);
-		if (iter.next(found_file))
-		{
-			old_vfs_data_file = gDirUtilp->add(dir, found_file);
-
-			S32 start_pos = found_file.find_last_of('.');
-			if (start_pos > 0)
-			{
-				sscanf(found_file.substr(start_pos+1).c_str(), "%d", &old_salt);
-			}
-			LL_DEBUGS("AppCache") << "Default vfs data file not present, found: " << old_vfs_data_file << " Old salt: " << old_salt << LL_ENDL;
-		}
-	}
-
-	old_vfs_index_file = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, VFS_INDEX_FILE_BASE) + llformat("%u", old_salt);
-
-	stat_result = LLFile::stat(old_vfs_index_file, &s);
-	if (stat_result)
-	{
-		// We've got a bad/missing index file, nukem!
-		LL_WARNS("AppCache") << "Bad or missing vfx index file " << old_vfs_index_file << LL_ENDL;
-		LL_WARNS("AppCache") << "Removing old vfs data file " << old_vfs_data_file << LL_ENDL;
-		LLFile::remove(old_vfs_data_file);
-		LLFile::remove(old_vfs_index_file);
-
-		// Just in case, nuke any other old cache files in the directory.
-		std::string dir;
-		dir = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, "");
+	LLVFile::initClass();
 
-		std::string mask;
-		mask = VFS_DATA_FILE_BASE;
-		mask += "*";
-
-		gDirUtilp->deleteFilesInDir(dir, mask);
-
-		mask = VFS_INDEX_FILE_BASE;
-		mask += "*";
-
-		gDirUtilp->deleteFilesInDir(dir, mask);
-	}
-
-	new_vfs_data_file = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, VFS_DATA_FILE_BASE) + llformat("%u", new_salt);
-	new_vfs_index_file = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, VFS_INDEX_FILE_BASE) + llformat("%u", new_salt);
-
-	static_vfs_data_file = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "static_data.db2");
-	static_vfs_index_file = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "static_index.db2");
-
-	if (resize_vfs)
-	{
-		LL_DEBUGS("AppCache") << "Removing old vfs and re-sizing" << LL_ENDL;
-
-		LLFile::remove(old_vfs_data_file);
-		LLFile::remove(old_vfs_index_file);
-	}
-	else if (old_salt != new_salt)
-	{
-		// move the vfs files to a new name before opening
-		LL_DEBUGS("AppCache") << "Renaming " << old_vfs_data_file << " to " << new_vfs_data_file << LL_ENDL;
-		LL_DEBUGS("AppCache") << "Renaming " << old_vfs_index_file << " to " << new_vfs_index_file << LL_ENDL;
-		LLFile::rename(old_vfs_data_file, new_vfs_data_file);
-		LLFile::rename(old_vfs_index_file, new_vfs_index_file);
-	}
-
-	// Startup the VFS...
-	gSavedSettings.setU32("VFSSalt", new_salt);
-
-	// Don't remove VFS after viewer crashes.  If user has corrupt data, they can reinstall. JC
-	gVFS = LLVFS::createLLVFS(new_vfs_index_file, new_vfs_data_file, false, vfs_size_u32, false);
-	if (!gVFS)
-	{
-		return false;
-	}
-
-	gStaticVFS = LLVFS::createLLVFS(static_vfs_index_file, static_vfs_data_file, true, 0, false);
-	if (!gStaticVFS)
-	{
-		return false;
-	}
-
-	BOOL success = gVFS->isValid() && gStaticVFS->isValid();
-	if (!success)
-	{
-		return false;
-	}
-	else
-	{
-		LLVFile::initClass();
-
-#ifndef LL_RELEASE_FOR_DOWNLOAD
-		if (gSavedSettings.getBOOL("DumpVFSCaches"))
-		{
-			dumpVFSCaches();
-		}
-#endif
-
-		return true;
-	}
+    return true;
 }
 
 void LLAppViewer::addOnIdleCallback(const boost::function<void()>& cb)
diff --git a/indra/newview/llappviewer.h b/indra/newview/llappviewer.h
index e8b3464c6e..e4803e9081 100644
--- a/indra/newview/llappviewer.h
+++ b/indra/newview/llappviewer.h
@@ -1,5 +1,6 @@
 /** 
  * @mainpage
+ * @mainpage
  *
  * This is the sources for the Second Life Viewer;
  * information on the open source project is at 
@@ -82,7 +83,7 @@ public:
 	virtual bool frame(); // Override for application body logic
 
 	// Application control
-	void flushVFSIO(); // waits for vfs transfers to complete
+	void flushLFSIO(); // waits for lfs transfers to complete
 	void forceQuit(); // Puts the viewer into 'shutting down without error' mode.
 	void fastQuit(S32 error_code = 0); // Shuts down the viewer immediately after sending a logout message
 	void requestQuit(); // Request a quit. A kinder, gentler quit.
@@ -377,12 +378,6 @@ extern BOOL			gRestoreGL;
 extern bool		gUseWireframe;
 extern bool		gInitialDeferredModeForWireframe;
 
-// VFS globals - gVFS is for general use
-// gStaticVFS is read-only and is shipped w/ the viewer
-// it has pre-cache data like the UI .TGAs
-class LLVFS;
-extern LLVFS	*gStaticVFS;
-
 extern LLMemoryInfo gSysMemory;
 extern U64Bytes gMemoryAllocated;
 
diff --git a/indra/newview/llcompilequeue.cpp b/indra/newview/llcompilequeue.cpp
index 76e16f5a1f..96a2f6796d 100644
--- a/indra/newview/llcompilequeue.cpp
+++ b/indra/newview/llcompilequeue.cpp
@@ -116,7 +116,7 @@ namespace
 }
 
 // *NOTE$: A minor specialization of LLScriptAssetUpload, it does not require a buffer 
-// (and does not save a buffer to the vFS) and it finds the compile queue window and 
+// (and does not save a buffer to the cache) and it finds the compile queue window and 
 // displays a compiling message.
 class LLQueuedScriptAssetUpload : public LLScriptAssetUpload
 {
@@ -134,8 +134,8 @@ public:
     virtual LLSD prepareUpload()
     {
         /* *NOTE$: The parent class (LLScriptAssetUpload will attempt to save 
-         * the script buffer into to the VFS.  Since the resource is already in 
-         * the VFS we don't want to do that.  Just put a compiling message in
+         * the script buffer into to the cache.  Since the resource is already in 
+         * the cache we don't want to do that.  Just put a compiling message in
          * the window and move on
          */
         LLFloaterCompileQueue* queue = LLFloaterReg::findTypedInstance<LLFloaterCompileQueue>("compile_queue", LLSD(mQueueId));
@@ -283,11 +283,11 @@ void LLFloaterCompileQueue::handleHTTPResponse(std::string pumpName, const LLSD
     LLEventPumps::instance().post(pumpName, expresult);
 }
 
-// *TODO: handleSCriptRetrieval is passed into the VFS via a legacy C function pointer
+// *TODO: handleSCriptRetrieval is passed into the cache via a legacy C function pointer
 // future project would be to convert these to C++ callables (std::function<>) so that 
 // we can use bind and remove the userData parameter.
 // 
-void LLFloaterCompileQueue::handleScriptRetrieval(LLVFS *vfs, const LLUUID& assetId, 
+void LLFloaterCompileQueue::handleScriptRetrieval(const LLUUID& assetId, 
     LLAssetType::EType type, void* userData, S32 status, LLExtStat extStatus)
 {
     LLSD result(LLSD::emptyMap());
diff --git a/indra/newview/llcompilequeue.h b/indra/newview/llcompilequeue.h
index 1b3d8f83a0..f0e104b2da 100644
--- a/indra/newview/llcompilequeue.h
+++ b/indra/newview/llcompilequeue.h
@@ -138,7 +138,7 @@ protected:
 
     //bool checkAssetId(const LLUUID &assetId);
     static void handleHTTPResponse(std::string pumpName, const LLSD &expresult);
-    static void handleScriptRetrieval(LLVFS *vfs, const LLUUID& assetId, LLAssetType::EType type, void* userData, S32 status, LLExtStat extStatus);
+    static void handleScriptRetrieval(const LLUUID& assetId, LLAssetType::EType type, void* userData, S32 status, LLExtStat extStatus);
 
 private:
     static void processExperienceIdResults(LLSD result, LLUUID parent);
diff --git a/indra/newview/llfilepicker.h b/indra/newview/llfilepicker.h
index 2fc496a144..04ba4416d7 100644
--- a/indra/newview/llfilepicker.h
+++ b/indra/newview/llfilepicker.h
@@ -136,7 +136,7 @@ public:
 
 	S32 getFileCount() const { return (S32)mFiles.size(); }
 
-	// See llvfs/lldir.h : getBaseFileName and getDirName to extract base or directory names
+	// see lldir.h : getBaseFileName and getDirName to extract base or directory names
 	
 	// clear any lists of buffers or whatever, and make sure the file
 	// picker isn't locked.
diff --git a/indra/newview/llfloaterauction.cpp b/indra/newview/llfloaterauction.cpp
index 957b2e1e8e..bbb6409111 100644
--- a/indra/newview/llfloaterauction.cpp
+++ b/indra/newview/llfloaterauction.cpp
@@ -33,7 +33,6 @@
 #include "llimagetga.h"
 #include "llparcel.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "llwindow.h"
 #include "message.h"
 
@@ -202,7 +201,7 @@ void LLFloaterAuction::onClickSnapshot(void* data)
 
 		LLPointer<LLImageTGA> tga = new LLImageTGA;
 		tga->encode(raw);
-		LLVFile::writeFile(tga->getData(), tga->getDataSize(), gVFS, self->mImageID, LLAssetType::AT_IMAGE_TGA);
+		LLVFile::writeFile(tga->getData(), tga->getDataSize(), self->mImageID, LLAssetType::AT_IMAGE_TGA);
 		
 		raw->biasedScaleToPowerOfTwo(LLViewerTexture::MAX_IMAGE_SIZE_DEFAULT);
 
@@ -210,7 +209,7 @@ void LLFloaterAuction::onClickSnapshot(void* data)
 
 		LLPointer<LLImageJ2C> j2c = new LLImageJ2C;
 		j2c->encode(raw, 0.0f);
-		LLVFile::writeFile(j2c->getData(), j2c->getDataSize(), gVFS, self->mImageID, LLAssetType::AT_TEXTURE);
+		LLVFile::writeFile(j2c->getData(), j2c->getDataSize(), self->mImageID, LLAssetType::AT_TEXTURE);
 
 		self->mImage = LLViewerTextureManager::getLocalTexture((LLImageRaw*)raw, FALSE);
 		gGL.getTexUnit(0)->bind(self->mImage);
diff --git a/indra/newview/llfloaterbvhpreview.cpp b/indra/newview/llfloaterbvhpreview.cpp
index 131d9b077b..88ea3d74fb 100644
--- a/indra/newview/llfloaterbvhpreview.cpp
+++ b/indra/newview/llfloaterbvhpreview.cpp
@@ -997,7 +997,7 @@ void LLFloaterBvhPreview::onBtnOK(void* userdata)
 		LLDataPackerBinaryBuffer dp(buffer, file_size);
 		if (motionp->serialize(dp))
 		{
-			LLVFile file(gVFS, motionp->getID(), LLAssetType::AT_ANIMATION, LLVFile::APPEND);
+			LLVFile file(motionp->getID(), LLAssetType::AT_ANIMATION, LLVFile::APPEND);
 
 			S32 size = dp.getCurrentSize();
 			file.setMaxSize(size);
diff --git a/indra/newview/llfloatermodelpreview.cpp b/indra/newview/llfloatermodelpreview.cpp
index bc44e37c5a..bc35975cc6 100644
--- a/indra/newview/llfloatermodelpreview.cpp
+++ b/indra/newview/llfloatermodelpreview.cpp
@@ -78,7 +78,6 @@
 #include "lltoggleablemenu.h"
 #include "lltrans.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "llcallbacklist.h"
 #include "llviewerobjectlist.h"
 #include "llanimationstates.h"
diff --git a/indra/newview/llfloaterpreference.h b/indra/newview/llfloaterpreference.h
index 526214a617..f99d0e6150 100644
--- a/indra/newview/llfloaterpreference.h
+++ b/indra/newview/llfloaterpreference.h
@@ -107,7 +107,7 @@ protected:
 	void		onBtnOK(const LLSD& userdata);
 	void		onBtnCancel(const LLSD& userdata);
 
-	void		onClickClearCache();			// Clear viewer texture cache, vfs, and VO cache on next startup
+	void		onClickClearCache();			// Clear viewer texture cache, file cache on next startup
 	void		onClickBrowserClearCache();		// Clear web history and caches as well as viewer caches above
 	void		onLanguageChange();
 	void		onNotificationsChange(const std::string& OptionName);
diff --git a/indra/newview/llfloaterregioninfo.cpp b/indra/newview/llfloaterregioninfo.cpp
index ec1909d02a..4b67a0f605 100644
--- a/indra/newview/llfloaterregioninfo.cpp
+++ b/indra/newview/llfloaterregioninfo.cpp
@@ -2229,10 +2229,9 @@ void LLPanelEstateCovenant::loadInvItem(LLInventoryItem *itemp)
 }
 
 // static
-void LLPanelEstateCovenant::onLoadComplete(LLVFS *vfs,
-									   const LLUUID& asset_uuid,
-									   LLAssetType::EType type,
-									   void* user_data, S32 status, LLExtStat ext_status)
+void LLPanelEstateCovenant::onLoadComplete(const LLUUID& asset_uuid,
+									       LLAssetType::EType type,
+									       void* user_data, S32 status, LLExtStat ext_status)
 {
 	LL_INFOS() << "LLPanelEstateCovenant::onLoadComplete()" << LL_ENDL;
 	LLPanelEstateCovenant* panelp = (LLPanelEstateCovenant*)user_data;
@@ -2240,7 +2239,7 @@ void LLPanelEstateCovenant::onLoadComplete(LLVFS *vfs,
 	{
 		if(0 == status)
 		{
-			LLVFile file(vfs, asset_uuid, type, LLVFile::READ);
+			LLVFile file(asset_uuid, type, LLVFile::READ);
 
 			S32 file_length = file.getSize();
 
diff --git a/indra/newview/llfloaterregioninfo.h b/indra/newview/llfloaterregioninfo.h
index 75d0c3ea5c..c34dbb62e8 100644
--- a/indra/newview/llfloaterregioninfo.h
+++ b/indra/newview/llfloaterregioninfo.h
@@ -55,7 +55,6 @@ class LLRadioGroup;
 class LLSliderCtrl;
 class LLSpinCtrl;
 class LLTextBox;
-class LLVFS;
 
 class LLPanelRegionGeneralInfo;
 class LLPanelRegionDebugInfo;
@@ -357,8 +356,7 @@ public:
 	static bool confirmResetCovenantCallback(const LLSD& notification, const LLSD& response);
 	void sendChangeCovenantID(const LLUUID &asset_id);
 	void loadInvItem(LLInventoryItem *itemp);
-	static void onLoadComplete(LLVFS *vfs,
-							   const LLUUID& asset_uuid,
+	static void onLoadComplete(const LLUUID& asset_uuid,
 							   LLAssetType::EType type,
 							   void* user_data, S32 status, LLExtStat ext_status);
 
diff --git a/indra/newview/llfloaterreporter.cpp b/indra/newview/llfloaterreporter.cpp
index 702d612343..09178166e9 100644
--- a/indra/newview/llfloaterreporter.cpp
+++ b/indra/newview/llfloaterreporter.cpp
@@ -45,7 +45,6 @@
 #include "llstring.h"
 #include "llsys.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "mean_collision_data.h"
 #include "message.h"
 #include "v3math.h"
@@ -899,10 +898,9 @@ void LLFloaterReporter::takeScreenshot(bool use_prev_screenshot)
 	mResourceDatap->mAssetInfo.setName("screenshot_name");
 	mResourceDatap->mAssetInfo.setDescription("screenshot_descr");
 
-	// store in VFS
+	// store in cache
 	LLVFile::writeFile(upload_data->getData(), 
 						upload_data->getDataSize(), 
-						gVFS, 
 						mResourceDatap->mAssetInfo.mUuid, 
 						mResourceDatap->mAssetInfo.mType);
 
diff --git a/indra/newview/llfloatertos.h b/indra/newview/llfloatertos.h
index 85033acf4d..7c2f0705b7 100644
--- a/indra/newview/llfloatertos.h
+++ b/indra/newview/llfloatertos.h
@@ -36,7 +36,6 @@
 
 class LLButton;
 class LLRadioGroup;
-class LLVFS;
 class LLTextEditor;
 class LLUUID;
 
diff --git a/indra/newview/llgesturemgr.cpp b/indra/newview/llgesturemgr.cpp
index 950a6cfaef..119e0d21b2 100644
--- a/indra/newview/llgesturemgr.cpp
+++ b/indra/newview/llgesturemgr.cpp
@@ -548,7 +548,7 @@ void LLGestureMgr::playGesture(LLMultiGesture* gesture)
 				LLGestureStepAnimation* anim_step = (LLGestureStepAnimation*)step;
 				const LLUUID& anim_id = anim_step->mAnimAssetID;
 
-				// Don't request the animation if this step stops it or if it is already in Static VFS
+				// Don't request the animation if this step stops it or if it is already in the cache
 				if (!(anim_id.isNull()
 					  || anim_step->mFlags & ANIM_FLAG_STOP
 					  || gAssetStorage->hasLocalAsset(anim_id, LLAssetType::AT_ANIMATION)))
@@ -1038,10 +1038,9 @@ void LLGestureMgr::runStep(LLMultiGesture* gesture, LLGestureStep* step)
 
 
 // static
-void LLGestureMgr::onLoadComplete(LLVFS *vfs,
-									   const LLUUID& asset_uuid,
-									   LLAssetType::EType type,
-									   void* user_data, S32 status, LLExtStat ext_status)
+void LLGestureMgr::onLoadComplete(const LLUUID& asset_uuid,
+								  LLAssetType::EType type,
+								  void* user_data, S32 status, LLExtStat ext_status)
 {
 	LLLoadInfo* info = (LLLoadInfo*)user_data;
 
@@ -1056,7 +1055,7 @@ void LLGestureMgr::onLoadComplete(LLVFS *vfs,
 
 	if (0 == status)
 	{
-		LLVFile file(vfs, asset_uuid, type, LLVFile::READ);
+		LLVFile file(asset_uuid, type, LLVFile::READ);
 		S32 size = file.getSize();
 
 		std::vector<char> buffer(size+1);
@@ -1159,8 +1158,7 @@ void LLGestureMgr::onLoadComplete(LLVFS *vfs,
 }
 
 // static
-void LLGestureMgr::onAssetLoadComplete(LLVFS *vfs,
-									   const LLUUID& asset_uuid,
+void LLGestureMgr::onAssetLoadComplete(const LLUUID& asset_uuid,
 									   LLAssetType::EType type,
 									   void* user_data, S32 status, LLExtStat ext_status)
 {
@@ -1172,7 +1170,7 @@ void LLGestureMgr::onAssetLoadComplete(LLVFS *vfs,
 	{
 	case LLAssetType::AT_ANIMATION:
 		{
-			LLKeyframeMotion::onLoadComplete(vfs, asset_uuid, type, user_data, status, ext_status);
+			LLKeyframeMotion::onLoadComplete(asset_uuid, type, user_data, status, ext_status);
 
 			self.mLoadingAssets.erase(asset_uuid);
 
@@ -1180,7 +1178,7 @@ void LLGestureMgr::onAssetLoadComplete(LLVFS *vfs,
 		}
 	case LLAssetType::AT_SOUND:
 		{
-			LLAudioEngine::assetCallback(vfs, asset_uuid, type, user_data, status, ext_status);
+			LLAudioEngine::assetCallback(asset_uuid, type, user_data, status, ext_status);
 
 			self.mLoadingAssets.erase(asset_uuid);
 
diff --git a/indra/newview/llgesturemgr.h b/indra/newview/llgesturemgr.h
index 402bdf6039..91ab445273 100644
--- a/indra/newview/llgesturemgr.h
+++ b/indra/newview/llgesturemgr.h
@@ -40,7 +40,6 @@ class LLMultiGesture;
 class LLGestureListener;
 class LLGestureStep;
 class LLUUID;
-class LLVFS;
 
 class LLGestureManagerObserver
 {
@@ -154,15 +153,13 @@ protected:
 	void done();
 
 	// Used by loadGesture
-	static void onLoadComplete(LLVFS *vfs,
-						   const LLUUID& asset_uuid,
-						   LLAssetType::EType type,
-						   void* user_data, S32 status, LLExtStat ext_status);
+	static void onLoadComplete(const LLUUID& asset_uuid,
+					           LLAssetType::EType type,
+						       void* user_data, S32 status, LLExtStat ext_status);
 
 	// Used by playGesture to load an asset file
 	// required to play a gesture step
-	static void onAssetLoadComplete(LLVFS *vfs,
-									const LLUUID& asset_uuid,
+	static void onAssetLoadComplete(const LLUUID& asset_uuid,
 									LLAssetType::EType type,
 									void* user_data, S32 status, LLExtStat ext_status);
 
diff --git a/indra/newview/lllandmarklist.cpp b/indra/newview/lllandmarklist.cpp
index c58540914e..247ebf7719 100644
--- a/indra/newview/lllandmarklist.cpp
+++ b/indra/newview/lllandmarklist.cpp
@@ -97,7 +97,6 @@ LLLandmark* LLLandmarkList::getAsset(const LLUUID& asset_uuid, loaded_callback_t
 
 // static
 void LLLandmarkList::processGetAssetReply(
-	LLVFS *vfs,
 	const LLUUID& uuid,
 	LLAssetType::EType type,
 	void* user_data,
@@ -106,7 +105,7 @@ void LLLandmarkList::processGetAssetReply(
 {
 	if( status == 0 )
 	{
-		LLVFile file(vfs, uuid, type);
+		LLVFile file(uuid, type);
 		S32 file_length = file.getSize();
 
 		std::vector<char> buffer(file_length + 1);
diff --git a/indra/newview/lllandmarklist.h b/indra/newview/lllandmarklist.h
index 3356f866ce..750cb898e1 100644
--- a/indra/newview/lllandmarklist.h
+++ b/indra/newview/lllandmarklist.h
@@ -52,7 +52,6 @@ public:
 	BOOL assetExists(const LLUUID& asset_uuid);
 	LLLandmark* getAsset(const LLUUID& asset_uuid, loaded_callback_t cb = NULL);
 	static void processGetAssetReply(
-		LLVFS *vfs,
 		const LLUUID& uuid,
 		LLAssetType::EType type,
 		void* user_data,
diff --git a/indra/newview/llmeshrepository.cpp b/indra/newview/llmeshrepository.cpp
index c5ced425f6..55c64508d2 100644
--- a/indra/newview/llmeshrepository.cpp
+++ b/indra/newview/llmeshrepository.cpp
@@ -294,8 +294,6 @@
 //   * Header parse failures come without much explanation.  Elaborate.
 //   * Work queue for uploads?  Any need for this or is the current scheme good
 //     enough?
-//   * Various temp buffers used in VFS I/O might be allocated once or even
-//     statically.  Look for some wins here.
 //   * Move data structures holding mesh data used by main thread into main-
 //     thread-only access so that no locking is needed.  May require duplication
 //     of some data so that worker thread has a minimal data set to guide
@@ -1336,8 +1334,8 @@ bool LLMeshRepoThread::fetchMeshSkinInfo(const LLUUID& mesh_id)
 
 		if (version <= MAX_MESH_VERSION && offset >= 0 && size > 0)
 		{
-			//check VFS for mesh skin info
-			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH);
+			//check cache for mesh skin info
+			LLVFile file(mesh_id, LLAssetType::AT_MESH);
 			if (file.getSize() >= offset+size)
 			{
 				U8* buffer = new(std::nothrow) U8[size];
@@ -1370,7 +1368,7 @@ bool LLMeshRepoThread::fetchMeshSkinInfo(const LLUUID& mesh_id)
 				delete[] buffer;
 			}
 
-			//reading from VFS failed for whatever reason, fetch from sim
+			//reading from cache failed for whatever reason, fetch from sim
 			std::string http_url;
 			constructUrl(mesh_id, &http_url);
 
@@ -1432,8 +1430,8 @@ bool LLMeshRepoThread::fetchMeshDecomposition(const LLUUID& mesh_id)
 
 		if (version <= MAX_MESH_VERSION && offset >= 0 && size > 0)
 		{
-			//check VFS for mesh skin info
-			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH);
+			//check cache for mesh skin info
+			LLVFile file(mesh_id, LLAssetType::AT_MESH);
 			if (file.getSize() >= offset+size)
 			{
 				U8* buffer = new(std::nothrow) U8[size];
@@ -1467,7 +1465,7 @@ bool LLMeshRepoThread::fetchMeshDecomposition(const LLUUID& mesh_id)
 				delete[] buffer;
 			}
 
-			//reading from VFS failed for whatever reason, fetch from sim
+			//reading from cache failed for whatever reason, fetch from sim
 			std::string http_url;
 			constructUrl(mesh_id, &http_url);
 			
@@ -1529,8 +1527,8 @@ bool LLMeshRepoThread::fetchMeshPhysicsShape(const LLUUID& mesh_id)
 
 		if (version <= MAX_MESH_VERSION && offset >= 0 && size > 0)
 		{
-			//check VFS for mesh physics shape info
-			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH);
+			//check cache for mesh physics shape info
+			LLVFile file(mesh_id, LLAssetType::AT_MESH);
 			if (file.getSize() >= offset+size)
 			{
 				LLMeshRepository::sCacheBytesRead += size;
@@ -1563,7 +1561,7 @@ bool LLMeshRepoThread::fetchMeshPhysicsShape(const LLUUID& mesh_id)
 				delete[] buffer;
 			}
 
-			//reading from VFS failed for whatever reason, fetch from sim
+			//reading from cache failed for whatever reason, fetch from sim
 			std::string http_url;
 			constructUrl(mesh_id, &http_url);
 			
@@ -1634,8 +1632,8 @@ bool LLMeshRepoThread::fetchMeshHeader(const LLVolumeParams& mesh_params, bool c
 	++LLMeshRepository::sMeshRequestCount;
 
 	{
-		//look for mesh in asset in vfs
-		LLVFile file(gVFS, mesh_params.getSculptID(), LLAssetType::AT_MESH);
+		//look for mesh in asset in cache
+		LLVFile file(mesh_params.getSculptID(), LLAssetType::AT_MESH);
 			
 		S32 size = file.getSize();
 
@@ -1649,7 +1647,7 @@ bool LLMeshRepoThread::fetchMeshHeader(const LLVolumeParams& mesh_params, bool c
 			file.read(buffer, bytes);
 			if (headerReceived(mesh_params, buffer, bytes))
 			{
-				// Found mesh in VFS cache
+				// Found mesh in cache
 				return true;
 			}
 		}
@@ -1713,8 +1711,8 @@ bool LLMeshRepoThread::fetchMeshLOD(const LLVolumeParams& mesh_params, S32 lod,
 		if (version <= MAX_MESH_VERSION && offset >= 0 && size > 0)
 		{
 
-			//check VFS for mesh asset
-			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH);
+			//check cache for mesh asset
+			LLVFile file(mesh_id, LLAssetType::AT_MESH);
 			if (file.getSize() >= offset+size)
 			{
 				U8* buffer = new(std::nothrow) U8[size];
@@ -1749,7 +1747,7 @@ bool LLMeshRepoThread::fetchMeshLOD(const LLVolumeParams& mesh_params, S32 lod,
 				delete[] buffer;
 			}
 
-			//reading from VFS failed for whatever reason, fetch from sim
+			//reading from cache failed for whatever reason, fetch from sim
 			std::string http_url;
 			constructUrl(mesh_id, &http_url);
 			
@@ -3162,7 +3160,7 @@ void LLMeshHeaderHandler::processData(LLCore::BufferArray * /* body */, S32 /* b
 	}
 	else if (data && data_size > 0)
 	{
-		// header was successfully retrieved from sim and parsed, cache in vfs
+		// header was successfully retrieved from sim and parsed and is in cache
 		S32 header_bytes = 0;
 		LLSD header;
 
@@ -3199,10 +3197,10 @@ void LLMeshHeaderHandler::processData(LLCore::BufferArray * /* body */, S32 /* b
 
 		
 			// It's possible for the remote asset to have more data than is needed for the local cache
-			// only allocate as much space in the VFS as is needed for the local cache
+			// only allocate as much space in the cache as is needed for the local cache
 			data_size = llmin(data_size, bytes);
 
-			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH, LLVFile::WRITE);
+			LLVFile file(mesh_id, LLAssetType::AT_MESH, LLVFile::WRITE);
 			if (file.getMaxSize() >= bytes || file.setMaxSize(bytes))
 			{
 				LLMeshRepository::sCacheBytesWritten += data_size;
@@ -3273,8 +3271,8 @@ void LLMeshLODHandler::processData(LLCore::BufferArray * /* body */, S32 /* body
 		EMeshProcessingResult result = gMeshRepo.mThread->lodReceived(mMeshParams, mLOD, data, data_size);
 		if (result == MESH_OK)
 		{
-			// good fetch from sim, write to VFS for caching
-			LLVFile file(gVFS, mMeshParams.getSculptID(), LLAssetType::AT_MESH, LLVFile::WRITE);
+			// good fetch from sim, write to cache
+			LLVFile file(mMeshParams.getSculptID(), LLAssetType::AT_MESH, LLVFile::WRITE);
 
 			S32 offset = mOffset;
 			S32 size = mRequestedBytes;
@@ -3337,8 +3335,8 @@ void LLMeshSkinInfoHandler::processData(LLCore::BufferArray * /* body */, S32 /*
 		&& ((data != NULL) == (data_size > 0)) // if we have data but no size or have size but no data, something is wrong
 		&& gMeshRepo.mThread->skinInfoReceived(mMeshID, data, data_size))
 	{
-		// good fetch from sim, write to VFS for caching
-		LLVFile file(gVFS, mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
+		// good fetch from sim, write to cache
+		LLVFile file(mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
 
 		S32 offset = mOffset;
 		S32 size = mRequestedBytes;
@@ -3385,8 +3383,8 @@ void LLMeshDecompositionHandler::processData(LLCore::BufferArray * /* body */, S
 		&& ((data != NULL) == (data_size > 0)) // if we have data but no size or have size but no data, something is wrong
 		&& gMeshRepo.mThread->decompositionReceived(mMeshID, data, data_size))
 	{
-		// good fetch from sim, write to VFS for caching
-		LLVFile file(gVFS, mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
+		// good fetch from sim, write to cache
+		LLVFile file(mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
 
 		S32 offset = mOffset;
 		S32 size = mRequestedBytes;
@@ -3432,8 +3430,8 @@ void LLMeshPhysicsShapeHandler::processData(LLCore::BufferArray * /* body */, S3
 		&& ((data != NULL) == (data_size > 0)) // if we have data but no size or have size but no data, something is wrong
 		&& gMeshRepo.mThread->physicsShapeReceived(mMeshID, data, data_size))
 	{
-		// good fetch from sim, write to VFS for caching
-		LLVFile file(gVFS, mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
+		// good fetch from sim, write to cache for caching
+		LLVFile file(mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
 
 		S32 offset = mOffset;
 		S32 size = mRequestedBytes;
diff --git a/indra/newview/llmeshrepository.h b/indra/newview/llmeshrepository.h
index bba0c9f2cb..145c8733f3 100644
--- a/indra/newview/llmeshrepository.h
+++ b/indra/newview/llmeshrepository.h
@@ -48,7 +48,6 @@
 class LLVOVolume;
 class LLMutex;
 class LLCondition;
-class LLVFS;
 class LLMeshRepository;
 
 typedef enum e_mesh_processing_result_enum
diff --git a/indra/newview/lloutfitgallery.h b/indra/newview/lloutfitgallery.h
index 6dd8a6298f..ce5c090134 100644
--- a/indra/newview/lloutfitgallery.h
+++ b/indra/newview/lloutfitgallery.h
@@ -38,7 +38,6 @@
 
 #include <vector>
 
-class LLVFS;
 class LLOutfitGallery;
 class LLOutfitGalleryItem;
 class LLOutfitListGearMenuBase;
diff --git a/indra/newview/llpostcard.cpp b/indra/newview/llpostcard.cpp
index d5775042c1..5201988d7c 100644
--- a/indra/newview/llpostcard.cpp
+++ b/indra/newview/llpostcard.cpp
@@ -29,7 +29,6 @@
 #include "llpostcard.h"
 
 #include "llvfile.h"
-#include "llvfs.h"
 #include "llviewerregion.h"
 
 #include "message.h"
diff --git a/indra/newview/llpreviewgesture.cpp b/indra/newview/llpreviewgesture.cpp
index 70ce275734..aaae6daf2c 100644
--- a/indra/newview/llpreviewgesture.cpp
+++ b/indra/newview/llpreviewgesture.cpp
@@ -30,7 +30,7 @@
 #include "llagent.h"
 #include "llanimstatelabels.h"
 #include "llanimationstates.h"
-#include "llappviewer.h"			// gVFS
+#include "llappviewer.h"
 #include "llcheckboxctrl.h"
 #include "llcombobox.h"
 #include "lldatapacker.h"
@@ -841,10 +841,9 @@ void LLPreviewGesture::loadAsset()
 
 
 // static
-void LLPreviewGesture::onLoadComplete(LLVFS *vfs,
-									   const LLUUID& asset_uuid,
-									   LLAssetType::EType type,
-									   void* user_data, S32 status, LLExtStat ext_status)
+void LLPreviewGesture::onLoadComplete(const LLUUID& asset_uuid,
+									  LLAssetType::EType type,
+									  void* user_data, S32 status, LLExtStat ext_status)
 {
 	LLUUID* item_idp = (LLUUID*)user_data;
 
@@ -853,7 +852,7 @@ void LLPreviewGesture::onLoadComplete(LLVFS *vfs,
 	{
 		if (0 == status)
 		{
-			LLVFile file(vfs, asset_uuid, type, LLVFile::READ);
+			LLVFile file(asset_uuid, type, LLVFile::READ);
 			S32 size = file.getSize();
 
 			std::vector<char> buffer(size+1);
@@ -1138,7 +1137,7 @@ void LLPreviewGesture::saveIfNeeded()
             tid.generate();
             assetId = tid.makeAssetID(gAgent.getSecureSessionID());
 
-            LLVFile file(gVFS, assetId, LLAssetType::AT_GESTURE, LLVFile::APPEND);
+            LLVFile file(assetId, LLAssetType::AT_GESTURE, LLVFile::APPEND);
 
             S32 size = dp.getCurrentSize();
             file.setMaxSize(size);
diff --git a/indra/newview/llpreviewgesture.h b/indra/newview/llpreviewgesture.h
index 3ba4f56295..19bccf35bd 100644
--- a/indra/newview/llpreviewgesture.h
+++ b/indra/newview/llpreviewgesture.h
@@ -39,7 +39,6 @@ class LLScrollListCtrl;
 class LLScrollListItem;
 class LLButton;
 class LLRadioGroup;
-class LLVFS;
 
 class LLPreviewGesture : public LLPreview
 {
@@ -80,8 +79,7 @@ protected:
 
 	void loadAsset();
 
-	static void onLoadComplete(LLVFS *vfs,
-							   const LLUUID& asset_uuid,
+	static void onLoadComplete(const LLUUID& asset_uuid,
 							   LLAssetType::EType type,
 							   void* user_data, S32 status, LLExtStat ext_status);
 
diff --git a/indra/newview/llpreviewnotecard.cpp b/indra/newview/llpreviewnotecard.cpp
index 7ef0ef0e8b..62ddfd5b3e 100644
--- a/indra/newview/llpreviewnotecard.cpp
+++ b/indra/newview/llpreviewnotecard.cpp
@@ -326,8 +326,7 @@ void LLPreviewNotecard::loadAsset()
 }
 
 // static
-void LLPreviewNotecard::onLoadComplete(LLVFS *vfs,
-									   const LLUUID& asset_uuid,
+void LLPreviewNotecard::onLoadComplete(const LLUUID& asset_uuid,
 									   LLAssetType::EType type,
 									   void* user_data, S32 status, LLExtStat ext_status)
 {
@@ -338,7 +337,7 @@ void LLPreviewNotecard::onLoadComplete(LLVFS *vfs,
 	{
 		if(0 == status)
 		{
-			LLVFile file(vfs, asset_uuid, type, LLVFile::READ);
+			LLVFile file(asset_uuid, type, LLVFile::READ);
 
 			S32 file_length = file.getSize();
 
@@ -445,7 +444,7 @@ void LLPreviewNotecard::finishInventoryUpload(LLUUID itemId, LLUUID newAssetId,
     LLPreviewNotecard* nc = LLFloaterReg::findTypedInstance<LLPreviewNotecard>("preview_notecard", LLSD(itemId));
     if (nc)
     {
-        // *HACK: we have to delete the asset in the VFS so
+        // *HACK: we have to delete the asset in the cache so
         // that the viewer will redownload it. This is only
         // really necessary if the asset had to be modified by
         // the uploader, so this can be optimized away in some
@@ -453,7 +452,7 @@ void LLPreviewNotecard::finishInventoryUpload(LLUUID itemId, LLUUID newAssetId,
         // script actually changed the asset.
         if (nc->hasEmbeddedInventory())
         {
-            gVFS->removeFile(newAssetId, LLAssetType::AT_NOTECARD);
+            LLVFile::removeFile(newAssetId, LLAssetType::AT_NOTECARD);
         }
         if (newItemId.isNull())
         {
@@ -478,7 +477,7 @@ void LLPreviewNotecard::finishTaskUpload(LLUUID itemId, LLUUID newAssetId, LLUUI
     {
         if (nc->hasEmbeddedInventory())
         {
-            gVFS->removeFile(newAssetId, LLAssetType::AT_NOTECARD);
+            LLVFile::removeFile(newAssetId, LLAssetType::AT_NOTECARD);
         }
         nc->setAssetId(newAssetId);
         nc->refreshFromInventory();
@@ -557,7 +556,7 @@ bool LLPreviewNotecard::saveIfNeeded(LLInventoryItem* copyitem, bool sync)
                 tid.generate();
                 asset_id = tid.makeAssetID(gAgent.getSecureSessionID());
 
-                LLVFile file(gVFS, asset_id, LLAssetType::AT_NOTECARD, LLVFile::APPEND);
+                LLVFile file(asset_id, LLAssetType::AT_NOTECARD, LLVFile::APPEND);
 
 
 				LLSaveNotecardInfo* info = new LLSaveNotecardInfo(this, mItemUUID, mObjectUUID,
diff --git a/indra/newview/llpreviewnotecard.h b/indra/newview/llpreviewnotecard.h
index d9c14815c1..063a01ca47 100644
--- a/indra/newview/llpreviewnotecard.h
+++ b/indra/newview/llpreviewnotecard.h
@@ -83,8 +83,7 @@ protected:
 
 	void deleteNotecard();
 
-	static void onLoadComplete(LLVFS *vfs,
-							   const LLUUID& asset_uuid,
+	static void onLoadComplete(const LLUUID& asset_uuid,
 							   LLAssetType::EType type,
 							   void* user_data, S32 status, LLExtStat ext_status);
 
diff --git a/indra/newview/llpreviewscript.cpp b/indra/newview/llpreviewscript.cpp
index 7a68d1e270..2eedce9bc1 100644
--- a/indra/newview/llpreviewscript.cpp
+++ b/indra/newview/llpreviewscript.cpp
@@ -1704,8 +1704,8 @@ void LLPreviewLSL::saveIfNeeded(bool sync /*= true*/)
 }
 
 // static
-void LLPreviewLSL::onLoadComplete( LLVFS *vfs, const LLUUID& asset_uuid, LLAssetType::EType type,
-								   void* user_data, S32 status, LLExtStat ext_status)
+void LLPreviewLSL::onLoadComplete(const LLUUID& asset_uuid, LLAssetType::EType type,
+								  void* user_data, S32 status, LLExtStat ext_status)
 {
 	LL_DEBUGS() << "LLPreviewLSL::onLoadComplete: got uuid " << asset_uuid
 		 << LL_ENDL;
@@ -1715,7 +1715,7 @@ void LLPreviewLSL::onLoadComplete( LLVFS *vfs, const LLUUID& asset_uuid, LLAsset
 	{
 		if(0 == status)
 		{
-			LLVFile file(vfs, asset_uuid, type);
+			LLVFile file(asset_uuid, type);
 			S32 file_length = file.getSize();
 
 			std::vector<char> buffer(file_length+1);
@@ -1978,7 +1978,7 @@ void LLLiveLSLEditor::loadAsset()
 }
 
 // static
-void LLLiveLSLEditor::onLoadComplete(LLVFS *vfs, const LLUUID& asset_id,
+void LLLiveLSLEditor::onLoadComplete(const LLUUID& asset_id,
 									 LLAssetType::EType type,
 									 void* user_data, S32 status, LLExtStat ext_status)
 {
@@ -1992,7 +1992,7 @@ void LLLiveLSLEditor::onLoadComplete(LLVFS *vfs, const LLUUID& asset_id,
 	{
 		if( LL_ERR_NOERR == status )
 		{
-			instance->loadScriptText(vfs, asset_id, type);
+			instance->loadScriptText(asset_id, type);
 			instance->mScriptEd->setEnableEditing(TRUE);
 			instance->mAssetStatus = PREVIEW_ASSET_LOADED;
 		}
@@ -2018,9 +2018,9 @@ void LLLiveLSLEditor::onLoadComplete(LLVFS *vfs, const LLUUID& asset_id,
 	delete floater_key;
 }
 
-void LLLiveLSLEditor::loadScriptText(LLVFS *vfs, const LLUUID &uuid, LLAssetType::EType type)
+void LLLiveLSLEditor::loadScriptText(const LLUUID &uuid, LLAssetType::EType type)
 {
-	LLVFile file(vfs, uuid, type);
+	LLVFile file(uuid, type);
 	S32 file_length = file.getSize();
 	std::vector<char> buffer(file_length + 1);
 	file.read((U8*)&buffer[0], file_length);
diff --git a/indra/newview/llpreviewscript.h b/indra/newview/llpreviewscript.h
index 74e4c00d43..40ab3a3dbb 100644
--- a/indra/newview/llpreviewscript.h
+++ b/indra/newview/llpreviewscript.h
@@ -48,7 +48,6 @@ struct 	LLEntryAndEdCore;
 class LLMenuBarGL;
 class LLFloaterScriptSearch;
 class LLKeywordToken;
-class LLVFS;
 class LLViewerInventoryItem;
 class LLScriptEdContainer;
 class LLFloaterGotoLine;
@@ -235,7 +234,7 @@ protected:
 	static void onLoad(void* userdata);
 	static void onSave(void* userdata, BOOL close_after_save);
 	
-	static void onLoadComplete(LLVFS *vfs, const LLUUID& uuid,
+	static void onLoadComplete(const LLUUID& uuid,
 							   LLAssetType::EType type,
 							   void* user_data, S32 status, LLExtStat ext_status);
 
@@ -296,13 +295,13 @@ private:
 	static void onLoad(void* userdata);
 	static void onSave(void* userdata, BOOL close_after_save);
 
-	static void onLoadComplete(LLVFS *vfs, const LLUUID& asset_uuid,
+	static void onLoadComplete(const LLUUID& asset_uuid,
 							   LLAssetType::EType type,
 							   void* user_data, S32 status, LLExtStat ext_status);
 	static void onRunningCheckboxClicked(LLUICtrl*, void* userdata);
 	static void onReset(void* userdata);
 
-	void loadScriptText(LLVFS *vfs, const LLUUID &uuid, LLAssetType::EType type);
+	void loadScriptText(const LLUUID &uuid, LLAssetType::EType type);
 
 	static void onErrorList(LLUICtrl*, void* user_data);
 
diff --git a/indra/newview/llsettingsvo.cpp b/indra/newview/llsettingsvo.cpp
index 97b5b2a57d..0084180cf8 100644
--- a/indra/newview/llsettingsvo.cpp
+++ b/indra/newview/llsettingsvo.cpp
@@ -292,18 +292,18 @@ void LLSettingsVOBase::onTaskAssetUploadComplete(LLUUID itemId, LLUUID taskId, L
 void LLSettingsVOBase::getSettingsAsset(const LLUUID &assetId, LLSettingsVOBase::asset_download_fn callback)
 {
     gAssetStorage->getAssetData(assetId, LLAssetType::AT_SETTINGS,
-        [callback](LLVFS *vfs, const LLUUID &asset_id, LLAssetType::EType, void *, S32 status, LLExtStat ext_status) 
-            { onAssetDownloadComplete(vfs, asset_id, status, ext_status, callback); },
+        [callback](const LLUUID &asset_id, LLAssetType::EType, void *, S32 status, LLExtStat ext_status) 
+            { onAssetDownloadComplete(asset_id, status, ext_status, callback); },
         nullptr, true);
 
 }
 
-void LLSettingsVOBase::onAssetDownloadComplete(LLVFS *vfs, const LLUUID &asset_id, S32 status, LLExtStat ext_status, LLSettingsVOBase::asset_download_fn callback)
+void LLSettingsVOBase::onAssetDownloadComplete(const LLUUID &asset_id, S32 status, LLExtStat ext_status, LLSettingsVOBase::asset_download_fn callback)
 {
     LLSettingsBase::ptr_t settings;
     if (!status)
     {
-        LLVFile file(vfs, asset_id, LLAssetType::AT_SETTINGS, LLVFile::READ);
+        LLVFile file(asset_id, LLAssetType::AT_SETTINGS, LLVFile::READ);
         S32 size = file.getSize();
 
         std::string buffer(size + 1, '\0');
diff --git a/indra/newview/llsettingsvo.h b/indra/newview/llsettingsvo.h
index 65136ad2f5..a1baf02fe7 100644
--- a/indra/newview/llsettingsvo.h
+++ b/indra/newview/llsettingsvo.h
@@ -38,7 +38,6 @@
 #include "llextendedstatus.h"
 #include <boost/signals2.hpp>
 
-class LLVFS;
 class LLInventoryItem;
 class LLGLSLShader;
 
@@ -81,7 +80,7 @@ private:
     static void     onAgentAssetUploadComplete(LLUUID itemId, LLUUID newAssetId, LLUUID newItemId, LLSD response, LLSettingsBase::ptr_t psettings, inventory_result_fn callback);
     static void     onTaskAssetUploadComplete(LLUUID itemId, LLUUID taskId, LLUUID newAssetId, LLSD response, LLSettingsBase::ptr_t psettings, inventory_result_fn callback);
     
-    static void     onAssetDownloadComplete(LLVFS *vfs, const LLUUID &asset_id, S32 status, LLExtStat ext_status, asset_download_fn callback);
+    static void     onAssetDownloadComplete(const LLUUID &asset_id, S32 status, LLExtStat ext_status, asset_download_fn callback);
 };
 
 //=========================================================================
diff --git a/indra/newview/llsnapshotlivepreview.cpp b/indra/newview/llsnapshotlivepreview.cpp
index f3439daee9..4b8ceba80f 100644
--- a/indra/newview/llsnapshotlivepreview.cpp
+++ b/indra/newview/llsnapshotlivepreview.cpp
@@ -51,7 +51,6 @@
 #include "llviewermenufile.h"	// upload_new_resource()
 #include "llviewerstats.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "llwindow.h"
 #include "llworld.h"
 #include <boost/filesystem.hpp>
@@ -1006,7 +1005,7 @@ void LLSnapshotLivePreview::saveTexture(BOOL outfit_snapshot, std::string name)
 
 	if (formatted->encode(scaled, 0.0f))
 	{
-		LLVFile::writeFile(formatted->getData(), formatted->getDataSize(), gVFS, new_asset_id, LLAssetType::AT_TEXTURE);
+		LLVFile::writeFile(formatted->getData(), formatted->getDataSize(), new_asset_id, LLAssetType::AT_TEXTURE);
 		std::string pos_string;
 		LLAgentUI::buildLocationString(pos_string, LLAgentUI::LOCATION_FORMAT_FULL);
 		std::string who_took_it;
diff --git a/indra/newview/llstartup.cpp b/indra/newview/llstartup.cpp
index 6d20dcf188..344e0492c2 100644
--- a/indra/newview/llstartup.cpp
+++ b/indra/newview/llstartup.cpp
@@ -82,7 +82,6 @@
 #include "llversioninfo.h"
 #include "llviewercontrol.h"
 #include "llviewerhelp.h"
-#include "llvfs.h"
 #include "llxorcipher.h"	// saved password, MAC address
 #include "llwindow.h"
 #include "message.h"
@@ -268,7 +267,7 @@ bool login_alert_status(const LLSD& notification, const LLSD& response);
 void login_packet_failed(void**, S32 result);
 void use_circuit_callback(void**, S32 result);
 void register_viewer_callbacks(LLMessageSystem* msg);
-void asset_callback_nothing(LLVFS*, const LLUUID&, LLAssetType::EType, void*, S32);
+void asset_callback_nothing(const LLUUID&, LLAssetType::EType, void*, S32);
 bool callback_choose_gender(const LLSD& notification, const LLSD& response);
 void init_start_screen(S32 location_id);
 void release_start_screen();
@@ -580,7 +579,7 @@ bool idle_startup()
 			// start the xfer system. by default, choke the downloads
 			// a lot...
 			const S32 VIEWER_MAX_XFER = 3;
-			start_xfer_manager(gVFS);
+			start_xfer_manager();
 			gXferManager->setMaxIncomingXfers(VIEWER_MAX_XFER);
 			F32 xfer_throttle_bps = gSavedSettings.getF32("XferThrottle");
 			if (xfer_throttle_bps > 1.f)
@@ -588,7 +587,7 @@ bool idle_startup()
 				gXferManager->setUseAckThrottling(TRUE);
 				gXferManager->setAckThrottleBPS(xfer_throttle_bps);
 			}
-			gAssetStorage = new LLViewerAssetStorage(msg, gXferManager, gVFS, gStaticVFS);
+			gAssetStorage = new LLViewerAssetStorage(msg, gXferManager);
 
 
 			F32 dropPercent = gSavedSettings.getF32("PacketDropPercentage");
@@ -1004,13 +1003,6 @@ bool idle_startup()
 
 		gViewerWindow->revealIntroPanel();
 
-		// Poke the VFS, which could potentially block for a while if
-		// Windows XP is acting up
-		set_startup_status(0.07f, LLTrans::getString("LoginVerifyingCache"), LLStringUtil::null);
-		display_startup();
-
-		gVFS->pokeFiles();
-
 		LLStartUp::setStartupState( STATE_LOGIN_AUTH_INIT );
 
 		return FALSE;
@@ -2571,7 +2563,7 @@ void register_viewer_callbacks(LLMessageSystem* msg)
 	msg->setHandlerFuncFast(_PREHASH_FeatureDisabled, process_feature_disabled_message);
 }
 
-void asset_callback_nothing(LLVFS*, const LLUUID&, LLAssetType::EType, void*, S32)
+void asset_callback_nothing(const LLUUID&, LLAssetType::EType, void*, S32)
 {
 	// nothing
 }
diff --git a/indra/newview/llviewerassetstorage.cpp b/indra/newview/llviewerassetstorage.cpp
index cacdee7e83..b4e1e2633b 100644
--- a/indra/newview/llviewerassetstorage.cpp
+++ b/indra/newview/llviewerassetstorage.cpp
@@ -29,7 +29,6 @@
 #include "llviewerassetstorage.h"
 
 #include "llvfile.h"
-#include "llvfs.h"
 #include "message.h"
 
 #include "llagent.h"
@@ -103,10 +102,8 @@ public:
 ///----------------------------------------------------------------------------
 
 // Unused?
-LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
-                                           LLVFS *vfs, LLVFS *static_vfs, 
-                                           const LLHost &upstream_host)
-    : LLAssetStorage(msg, xfer, vfs, static_vfs, upstream_host),
+LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer, const LLHost &upstream_host)
+    : LLAssetStorage(msg, xfer, upstream_host),
       mAssetCoroCount(0),
       mCountRequests(0),
       mCountStarted(0),
@@ -116,10 +113,8 @@ LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *
 {
 }
 
-
-LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
-                                           LLVFS *vfs, LLVFS *static_vfs)
-    : LLAssetStorage(msg, xfer, vfs, static_vfs),
+LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer)
+    : LLAssetStorage(msg, xfer),
       mAssetCoroCount(0),
       mCountRequests(0),
       mCountStarted(0),
@@ -156,13 +151,13 @@ void LLViewerAssetStorage::storeAssetData(
     
     if (mUpstreamHost.isOk())
     {
-        if (mVFS->getExists(asset_id, asset_type))
+        if (LLVFile::getExists(asset_id, asset_type))
         {
             // Pack data into this packet if we can fit it.
             U8 buffer[MTUBYTES];
             buffer[0] = 0;
 
-            LLVFile vfile(mVFS, asset_id, asset_type, LLVFile::READ);
+            LLVFile vfile(asset_id, asset_type, LLVFile::READ);
             S32 asset_size = vfile.getSize();
 
             LLAssetRequest *req = new LLAssetRequest(asset_id, asset_type);
@@ -171,22 +166,20 @@ void LLViewerAssetStorage::storeAssetData(
 
             if (asset_size < 1)
             {
-                // This can happen if there's a bug in our code or if the VFS has been corrupted.
-                LL_WARNS("AssetStorage") << "LLViewerAssetStorage::storeAssetData()  Data _should_ already be in the VFS, but it's not! " << asset_id << LL_ENDL;
-                // LLAssetStorage metric: Zero size VFS
-                reportMetric( asset_id, asset_type, LLStringUtil::null, LLUUID::null, 0, MR_ZERO_SIZE, __FILE__, __LINE__, "The file didn't exist or was zero length (VFS - can't tell which)" );
+                // This can happen if there's a bug in our code or if the cache has been corrupted.
+                LL_WARNS("AssetStorage") << "LLViewerAssetStorage::storeAssetData()  Data _should_ already be in the cache, but it's not! " << asset_id << LL_ENDL;
 
                 delete req;
                 if (callback)
                 {
-                    callback(asset_id, user_data, LL_ERR_ASSET_REQUEST_FAILED, LLExtStat::VFS_CORRUPT);
+                    callback(asset_id, user_data, LL_ERR_ASSET_REQUEST_FAILED, LLExtStat::CACHE_CORRUPT);
                 }
                 return;
             }
             else
             {
                 // LLAssetStorage metric: Successful Request
-                S32 size = mVFS->getSize(asset_id, asset_type);
+                S32 size = LLVFile::getFileSize(asset_id, asset_type);
                 const char *message = "Added to upload queue";
                 reportMetric( asset_id, asset_type, LLStringUtil::null, LLUUID::null, size, MR_OKAY, __FILE__, __LINE__, message );
 
@@ -200,7 +193,7 @@ void LLViewerAssetStorage::storeAssetData(
                 }
             }
 
-            // Read the data from the VFS if it'll fit in this packet.
+            // Read the data from the cache if it'll fit in this packet.
             if (asset_size + 100 < MTUBYTES)
             {
                 BOOL res = vfile.read(buffer, asset_size);      /* Flawfinder: ignore */
@@ -213,14 +206,11 @@ void LLViewerAssetStorage::storeAssetData(
                 }
                 else
                 {
-                    LL_WARNS("AssetStorage") << "Probable corruption in VFS file, aborting store asset data" << LL_ENDL;
-
-                    // LLAssetStorage metric: VFS corrupt - bogus size
-                    reportMetric( asset_id, asset_type, LLStringUtil::null, LLUUID::null, asset_size, MR_VFS_CORRUPTION, __FILE__, __LINE__, "VFS corruption" );
+                    LL_WARNS("AssetStorage") << "Probable corruption in cache file, aborting store asset data" << LL_ENDL;
 
                     if (callback)
                     {
-                        callback(asset_id, user_data, LL_ERR_ASSET_REQUEST_NONEXISTENT_FILE, LLExtStat::VFS_CORRUPT);
+                        callback(asset_id, user_data, LL_ERR_ASSET_REQUEST_NONEXISTENT_FILE, LLExtStat::CACHE_CORRUPT);
                     }
                     return;
                 }
@@ -243,8 +233,7 @@ void LLViewerAssetStorage::storeAssetData(
         else
         {
             LL_WARNS("AssetStorage") << "AssetStorage: attempt to upload non-existent vfile " << asset_id << ":" << LLAssetType::lookup(asset_type) << LL_ENDL;
-            // LLAssetStorage metric: Zero size VFS
-            reportMetric( asset_id, asset_type, LLStringUtil::null, LLUUID::null, 0, MR_ZERO_SIZE, __FILE__, __LINE__, "The file didn't exist or was zero length (VFS - can't tell which)" );
+            reportMetric( asset_id, asset_type, LLStringUtil::null, LLUUID::null, 0, MR_ZERO_SIZE, __FILE__, __LINE__, "The file didn't exist or was zero length (cache - can't tell which)" );
             if (callback)
             {
                 callback(asset_id, user_data,  LL_ERR_ASSET_REQUEST_NONEXISTENT_FILE, LLExtStat::NONEXISTENT_FILE);
@@ -277,7 +266,6 @@ void LLViewerAssetStorage::storeAssetData(
     if(filename.empty())
     {
         // LLAssetStorage metric: no filename
-        reportMetric( LLUUID::null, asset_type, LLStringUtil::null, LLUUID::null, 0, MR_VFS_CORRUPTION, __FILE__, __LINE__, "Filename missing" );
         LL_ERRS() << "No filename specified" << LL_ENDL;
         return;
     }
@@ -302,7 +290,7 @@ void LLViewerAssetStorage::storeAssetData(
         legacy->mUpCallback = callback;
         legacy->mUserData = user_data;
 
-        LLVFile file(mVFS, asset_id, asset_type, LLVFile::WRITE);
+        LLVFile file(asset_id, asset_type, LLVFile::WRITE);
 
         file.setMaxSize(size);
 
@@ -538,7 +526,7 @@ void LLViewerAssetStorage::assetRequestCoro(
 			// case.
             LLUUID temp_id;
             temp_id.generate();
-            LLVFile vf(gAssetStorage->mVFS, temp_id, atype, LLVFile::WRITE);
+            LLVFile vf(temp_id, atype, LLVFile::WRITE);
             vf.setMaxSize(size);
             req->mBytesFetched = size;
             if (!vf.write(raw.data(),size))
@@ -546,13 +534,13 @@ void LLViewerAssetStorage::assetRequestCoro(
                 // TODO asset-http: handle error
                 LL_WARNS("ViewerAsset") << "Failure in vf.write()" << LL_ENDL;
                 result_code = LL_ERR_ASSET_REQUEST_FAILED;
-                ext_status = LLExtStat::VFS_CORRUPT;
+                ext_status = LLExtStat::CACHE_CORRUPT;
             }
             else if (!vf.rename(uuid, atype))
             {
                 LL_WARNS("ViewerAsset") << "rename failed" << LL_ENDL;
                 result_code = LL_ERR_ASSET_REQUEST_FAILED;
-                ext_status = LLExtStat::VFS_CORRUPT;
+                ext_status = LLExtStat::CACHE_CORRUPT;
             }
             else
             {
diff --git a/indra/newview/llviewerassetstorage.h b/indra/newview/llviewerassetstorage.h
index ef01d179b7..5d3f01fbb5 100644
--- a/indra/newview/llviewerassetstorage.h
+++ b/indra/newview/llviewerassetstorage.h
@@ -37,11 +37,9 @@ class LLViewerAssetRequest;
 class LLViewerAssetStorage : public LLAssetStorage
 {
 public:
-	LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
-				   LLVFS *vfs, LLVFS *static_vfs, const LLHost &upstream_host);
+	LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer, const LLHost &upstream_host);
 
-	LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
-				   LLVFS *vfs, LLVFS *static_vfs);
+	LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer);
 
 	~LLViewerAssetStorage();
 
diff --git a/indra/newview/llviewerassetupload.cpp b/indra/newview/llviewerassetupload.cpp
index d53cc3f745..d14b6b0568 100644
--- a/indra/newview/llviewerassetupload.cpp
+++ b/indra/newview/llviewerassetupload.cpp
@@ -466,13 +466,13 @@ LLSD LLNewFileResourceUploadInfo::exportTempFile()
 
     setAssetType(assetType);
 
-    // copy this file into the vfs for upload
+    // copy this file into the cache for upload
     S32 file_size;
     LLAPRFile infile;
     infile.open(filename, LL_APR_RB, NULL, &file_size);
     if (infile.getFileHandle())
     {
-        LLVFile file(gVFS, getAssetId(), assetType, LLVFile::WRITE);
+        LLVFile file(getAssetId(), assetType, LLVFile::WRITE);
 
         file.setMaxSize(file_size);
 
@@ -506,7 +506,7 @@ LLBufferedAssetUploadInfo::LLBufferedAssetUploadInfo(LLUUID itemId, LLAssetType:
     mContents(buffer),
     mInvnFinishFn(finish),
     mTaskFinishFn(nullptr),
-    mStoredToVFS(false)
+    mStoredToCache(false)
 {
     setItemId(itemId);
     setAssetType(assetType);
@@ -520,7 +520,7 @@ LLBufferedAssetUploadInfo::LLBufferedAssetUploadInfo(LLUUID itemId, LLPointer<LL
     mContents(),
     mInvnFinishFn(finish),
     mTaskFinishFn(nullptr),
-    mStoredToVFS(false)
+    mStoredToCache(false)
 {
     setItemId(itemId);
 
@@ -554,7 +554,7 @@ LLBufferedAssetUploadInfo::LLBufferedAssetUploadInfo(LLUUID taskId, LLUUID itemI
     mContents(buffer),
     mInvnFinishFn(nullptr),
     mTaskFinishFn(finish),
-    mStoredToVFS(false)
+    mStoredToCache(false)
 {
     setItemId(itemId);
     setAssetType(assetType);
@@ -565,13 +565,13 @@ LLSD LLBufferedAssetUploadInfo::prepareUpload()
     if (getAssetId().isNull())
         generateNewAssetId();
 
-    LLVFile file(gVFS, getAssetId(), getAssetType(), LLVFile::APPEND);
+    LLVFile file(getAssetId(), getAssetType(), LLVFile::APPEND);
 
     S32 size = mContents.length() + 1;
     file.setMaxSize(size);
     file.write((U8*)mContents.c_str(), size);
 
-    mStoredToVFS = true;
+    mStoredToCache = true;
 
     return LLSD().with("success", LLSD::Boolean(true));
 }
@@ -594,10 +594,10 @@ LLUUID LLBufferedAssetUploadInfo::finishUpload(LLSD &result)
     LLUUID newAssetId = result["new_asset"].asUUID();
     LLUUID itemId = getItemId();
 
-    if (mStoredToVFS)
+    if (mStoredToCache)
     {
         LLAssetType::EType assetType(getAssetType());
-        gVFS->renameFile(getAssetId(), assetType, newAssetId, assetType);
+        LLVFile::renameFile(getAssetId(), assetType, newAssetId, assetType);
     }
 
     if (mTaskUpload)
diff --git a/indra/newview/llviewerassetupload.h b/indra/newview/llviewerassetupload.h
index d9eacf3167..e56ba7d8f7 100644
--- a/indra/newview/llviewerassetupload.h
+++ b/indra/newview/llviewerassetupload.h
@@ -197,7 +197,7 @@ private:
     std::string         mContents;
     invnUploadFinish_f  mInvnFinishFn;
     taskUploadFinish_f  mTaskFinishFn;
-    bool                mStoredToVFS;
+    bool                mStoredToCache;
 };
 
 //-------------------------------------------------------------------------
diff --git a/indra/newview/llviewermedia_streamingaudio.cpp b/indra/newview/llviewermedia_streamingaudio.cpp
index 3ccf3070ab..d3e24aece5 100644
--- a/indra/newview/llviewermedia_streamingaudio.cpp
+++ b/indra/newview/llviewermedia_streamingaudio.cpp
@@ -33,10 +33,8 @@
 #include "llviewermedia_streamingaudio.h"
 
 #include "llmimetypes.h"
-#include "llvfs.h"
 #include "lldir.h"
 
-
 LLStreamingAudio_MediaPlugins::LLStreamingAudio_MediaPlugins() :
 	mMediaPlugin(NULL),
 	mGain(1.0)
diff --git a/indra/newview/llviewermenufile.cpp b/indra/newview/llviewermenufile.cpp
index cd48b1e8e7..cbf490d68d 100644
--- a/indra/newview/llviewermenufile.cpp
+++ b/indra/newview/llviewermenufile.cpp
@@ -54,7 +54,6 @@
 #include "llviewertexturelist.h"
 #include "lluictrlfactory.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "llviewerinventory.h"
 #include "llviewermenu.h"	// gMenuHolder
 #include "llviewerparcelmgr.h"
diff --git a/indra/newview/llviewermessage.cpp b/indra/newview/llviewermessage.cpp
index 06a8ebbe89..2d41560441 100644
--- a/indra/newview/llviewermessage.cpp
+++ b/indra/newview/llviewermessage.cpp
@@ -45,7 +45,6 @@
 #include "lltoastnotifypanel.h"
 #include "lltransactionflags.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "llxfermanager.h"
 #include "mean_collision_data.h"
 
@@ -6809,16 +6808,15 @@ void process_covenant_reply(LLMessageSystem* msg, void**)
 	}
 }
 
-void onCovenantLoadComplete(LLVFS *vfs,
-					const LLUUID& asset_uuid,
-					LLAssetType::EType type,
-					void* user_data, S32 status, LLExtStat ext_status)
+void onCovenantLoadComplete(const LLUUID& asset_uuid,
+							LLAssetType::EType type,
+							void* user_data, S32 status, LLExtStat ext_status)
 {
 	LL_DEBUGS("Messaging") << "onCovenantLoadComplete()" << LL_ENDL;
 	std::string covenant_text;
 	if(0 == status)
 	{
-		LLVFile file(vfs, asset_uuid, type, LLVFile::READ);
+		LLVFile file(asset_uuid, type, LLVFile::READ);
 		
 		S32 file_length = file.getSize();
 		
diff --git a/indra/newview/llviewermessage.h b/indra/newview/llviewermessage.h
index 78829a6a56..1e5a69ae13 100644
--- a/indra/newview/llviewermessage.h
+++ b/indra/newview/llviewermessage.h
@@ -47,7 +47,6 @@ class LLInventoryObject;
 class LLInventoryItem;
 class LLMeanCollisionData;
 class LLMessageSystem;
-class LLVFS;
 class LLViewerObject;
 class LLViewerRegion;
 
@@ -189,8 +188,7 @@ void process_script_dialog(LLMessageSystem* msg, void**);
 void process_load_url(LLMessageSystem* msg, void**);
 void process_script_teleport_request(LLMessageSystem* msg, void**);
 void process_covenant_reply(LLMessageSystem* msg, void**);
-void onCovenantLoadComplete(LLVFS *vfs,
-							const LLUUID& asset_uuid,
+void onCovenantLoadComplete(const LLUUID& asset_uuid,
 							LLAssetType::EType type,
 							void* user_data, S32 status, LLExtStat ext_status);
 
diff --git a/indra/newview/llviewerprecompiledheaders.h b/indra/newview/llviewerprecompiledheaders.h
index bbbacce8fa..e378c2448a 100644
--- a/indra/newview/llviewerprecompiledheaders.h
+++ b/indra/newview/llviewerprecompiledheaders.h
@@ -101,7 +101,6 @@
 #include "v4math.h"
 #include "xform.h"
 
-// Library includes from llvfs
 #include "lldir.h"
 
 // Library includes from llmessage project
diff --git a/indra/newview/llviewerstats.cpp b/indra/newview/llviewerstats.cpp
index 3fd709b3ce..470704d84e 100644
--- a/indra/newview/llviewerstats.cpp
+++ b/indra/newview/llviewerstats.cpp
@@ -144,7 +144,6 @@ LLTrace::SampleStatHandle<>	FPS_SAMPLE("fpssample"),
 							VISIBLE_AVATARS("visibleavatars", "Visible Avatars"),
 							SHADER_OBJECTS("shaderobjects", "Object Shaders"),
 							DRAW_DISTANCE("drawdistance", "Draw Distance"),
-							PENDING_VFS_OPERATIONS("vfspendingoperations"),
 							WINDOW_WIDTH("windowwidth", "Window width"),
 							WINDOW_HEIGHT("windowheight", "Window height");
 
@@ -382,7 +381,6 @@ void update_statistics()
 	F64Bits layer_bits = gVLManager.getLandBits() + gVLManager.getWindBits() + gVLManager.getCloudBits();
 	add(LLStatViewer::LAYERS_NETWORK_DATA_RECEIVED, layer_bits);
 	add(LLStatViewer::OBJECT_NETWORK_DATA_RECEIVED, gObjectData);
-	//sample(LLStatViewer::PENDING_VFS_OPERATIONS, LLVFile::getVFSThread()->getPending());
 	add(LLStatViewer::ASSET_UDP_DATA_RECEIVED, F64Bits(gTransferManager.getTransferBitsIn(LLTCT_ASSET)));
 	gTransferManager.resetTransferBitsIn(LLTCT_ASSET);
 
diff --git a/indra/newview/llviewerstats.h b/indra/newview/llviewerstats.h
index d8d92d61d3..299f045e7b 100644
--- a/indra/newview/llviewerstats.h
+++ b/indra/newview/llviewerstats.h
@@ -186,7 +186,6 @@ extern LLTrace::SampleStatHandle<>		FPS_SAMPLE,
 										VISIBLE_AVATARS,
 										SHADER_OBJECTS,
 										DRAW_DISTANCE,
-										PENDING_VFS_OPERATIONS,
 										WINDOW_WIDTH,
 										WINDOW_HEIGHT;
 
diff --git a/indra/newview/llviewertexlayer.cpp b/indra/newview/llviewertexlayer.cpp
index 7f7d190b92..b1cbdc4443 100644
--- a/indra/newview/llviewertexlayer.cpp
+++ b/indra/newview/llviewertexlayer.cpp
@@ -32,7 +32,6 @@
 #include "llimagej2c.h"
 #include "llnotificationsutil.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "llviewerregion.h"
 #include "llglslshader.h"
 #include "llvoavatarself.h"
diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp
index a2cec9a613..8782f282bf 100644
--- a/indra/newview/llviewertexture.cpp
+++ b/indra/newview/llviewertexture.cpp
@@ -40,7 +40,6 @@
 #include "llimagetga.h"
 #include "llstl.h"
 #include "llvfile.h"
-#include "llvfs.h"
 #include "message.h"
 #include "lltimer.h"
 
diff --git a/indra/newview/llviewertexturelist.cpp b/indra/newview/llviewertexturelist.cpp
index 561319ca5d..312a8726ca 100644
--- a/indra/newview/llviewertexturelist.cpp
+++ b/indra/newview/llviewertexturelist.cpp
@@ -41,9 +41,7 @@
 
 #include "llsdserialize.h"
 #include "llsys.h"
-#include "llvfs.h"
 #include "llvfile.h"
-#include "llvfsthread.h"
 #include "llxmltree.h"
 #include "message.h"
 
diff --git a/indra/newview/llviewerwearable.cpp b/indra/newview/llviewerwearable.cpp
index 2d7a0f920f..2201a5f70b 100644
--- a/indra/newview/llviewerwearable.cpp
+++ b/indra/newview/llviewerwearable.cpp
@@ -107,7 +107,6 @@ LLWearable::EImportResult LLViewerWearable::importStream( std::istream& input_st
 		// Shouldn't really log the asset id for security reasons, but
 		// we need it in this case.
 		LL_WARNS() << "Bad Wearable asset header: " << mAssetID << LL_ENDL;
-		//gVFS->dumpMap();
 		return result;
 	}
 
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index d567623ac0..efa0133a9a 100644
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -1134,7 +1134,6 @@ void LLVOAvatar::initInstance()
 	//-------------------------------------------------------------------------
 	if (LLCharacter::sInstances.size() == 1)
 	{
-		LLKeyframeMotion::setVFS(gStaticVFS);
 		registerMotion( ANIM_AGENT_DO_NOT_DISTURB,					LLNullMotion::create );
 		registerMotion( ANIM_AGENT_CROUCH,					LLKeyframeStandMotion::create );
 		registerMotion( ANIM_AGENT_CROUCHWALK,				LLKeyframeWalkMotion::create );
diff --git a/indra/newview/llvovolume.h b/indra/newview/llvovolume.h
index de00ef494e..e6566e2ce1 100644
--- a/indra/newview/llvovolume.h
+++ b/indra/newview/llvovolume.h
@@ -218,10 +218,9 @@ public:
 				void	updateSculptTexture();
 				void    setIndexInTex(U32 ch, S32 index) { mIndexInTex[ch] = index ;}
 				void	sculpt();
-	 static     void    rebuildMeshAssetCallback(LLVFS *vfs,
-														  const LLUUID& asset_uuid,
-														  LLAssetType::EType type,
-														  void* user_data, S32 status, LLExtStat ext_status);
+	 static     void    rebuildMeshAssetCallback(const LLUUID& asset_uuid,
+												 LLAssetType::EType type,
+												 void* user_data, S32 status, LLExtStat ext_status);
 					
 				void	updateRelativeXform(bool force_identity = false);
 	/*virtual*/ BOOL	updateGeometry(LLDrawable *drawable);
diff --git a/indra/newview/skins/default/xui/en/floater_scene_load_stats.xml b/indra/newview/skins/default/xui/en/floater_scene_load_stats.xml
index 62cce3a1e3..35d4385487 100644
--- a/indra/newview/skins/default/xui/en/floater_scene_load_stats.xml
+++ b/indra/newview/skins/default/xui/en/floater_scene_load_stats.xml
@@ -207,12 +207,6 @@
                     tick_spacing="128.f"
                     precision="1"
                     show_bar="false"/>
-			    <stat_bar name="vfspendingoperations"
-                    label="VFS Pending Operations"
-                    orientation="horizontal"
-                    stat="vfspendingoperations"
-                    unit_label=" Ops."
-                    show_bar="false"/>
 			  </stat_view>
 		  </stat_view>
 <!--Sim Stats-->
diff --git a/indra/newview/skins/default/xui/en/floater_stats.xml b/indra/newview/skins/default/xui/en/floater_stats.xml
index e4f735740b..f9d44b2c69 100644
--- a/indra/newview/skins/default/xui/en/floater_stats.xml
+++ b/indra/newview/skins/default/xui/en/floater_stats.xml
@@ -198,10 +198,6 @@
                     stat="messagedataout"
                     decimal_digits="1"
                     show_history="false"/>
-          <stat_bar name="vfspendingoperations"
-                    label="VFS Pending Operations"
-                    stat="vfspendingoperations"
-                    unit_label="Ops."/>
         </stat_view>
       </stat_view>
 
diff --git a/indra/newview/skins/default/xui/en/strings.xml b/indra/newview/skins/default/xui/en/strings.xml
index 1bfac6aeb7..9bd0f24d87 100644
--- a/indra/newview/skins/default/xui/en/strings.xml
+++ b/indra/newview/skins/default/xui/en/strings.xml
@@ -17,7 +17,6 @@
 	<string name="StartupLoading">Loading [APP_NAME]...</string>
 	<string name="StartupClearingCache">Clearing cache...</string>
 	<string name="StartupInitializingTextureCache">Initializing texture cache...</string>
-	<string name="StartupInitializingVFS">Initializing VFS...</string>
 	<string name="StartupRequireDriverUpdate">Graphics initialization failed. Please update your graphics driver!</string>
 
 	<!-- about dialog/support string-->
@@ -56,7 +55,6 @@ LOD factor: [LOD_FACTOR]
 Render quality: [RENDER_QUALITY]
 Advanced Lighting Model: [GPU_SHADERS]
 Texture memory: [TEXTURE_MEMORY]MB
-VFS (cache) creation time: [VFS_TIME]
 	</string>
 	<string name="AboutOSXHiDPI">
 HiDPI display mode: [HIDPI]