kernel/vm: Give VMCaches better names.

This helps with debugging and reading scheduling reports.

headers/private/kernel/vm/VMCache.h

@@ -81,7 +81,8 @@ public:
 								VMCache();
 	virtual						~VMCache();
 
-			status_t			Init(uint32 cacheType, uint32 allocationFlags);
+			status_t			Init(uint32 cacheType, uint32 allocationFlags,
+									const char* name);
 
 	virtual	void				Delete();
 

src/system/kernel/cache/vnode_store.cpp

@@ -20,7 +20,7 @@
 status_t
 VMVnodeCache::Init(struct vnode* vnode, uint32 allocationFlags)
 {
-	status_t error = VMCache::Init(CACHE_TYPE_VNODE, allocationFlags);
+	status_t error = VMCache::Init(CACHE_TYPE_VNODE, allocationFlags, "VMVnodeCache");
 	if (error != B_OK)
 		return error;
 

src/system/kernel/vm/VMAnonymousCache.cpp

@@ -463,7 +463,7 @@ VMAnonymousCache::Init(bool canOvercommit, int32 numPrecommittedPages,
 		")\n", this, canOvercommit ? "yes" : "no", numPrecommittedPages,
 		numGuardPages);
 
-	status_t error = VMCache::Init(CACHE_TYPE_RAM, allocationFlags);
+	status_t error = VMCache::Init(CACHE_TYPE_RAM, allocationFlags, "VMAnonymousCache");
 	if (error != B_OK)
 		return error;
 

src/system/kernel/vm/VMAnonymousNoSwapCache.cpp

@@ -45,7 +45,7 @@ VMAnonymousNoSwapCache::Init(bool canOvercommit, int32 numPrecommittedPages,
 	TRACE(("VMAnonymousNoSwapCache::Init(canOvercommit = %s, numGuardPages = %ld) "
 		"at %p\n", canOvercommit ? "yes" : "no", numGuardPages, store));
 
-	status_t error = VMCache::Init(CACHE_TYPE_RAM, allocationFlags);
+	status_t error = VMCache::Init(CACHE_TYPE_RAM, allocationFlags, "VMAnonymousNoSwapCache");
 	if (error != B_OK)
 		return error;
 

src/system/kernel/vm/VMCache.cpp

@@ -630,9 +630,9 @@ VMCache::~VMCache()
 
 
 status_t
-VMCache::Init(uint32 cacheType, uint32 allocationFlags)
+VMCache::Init(uint32 cacheType, uint32 allocationFlags, const char* name)
 {
-	mutex_init(&fLock, "VMCache");
+	mutex_init(&fLock, name);
 
 	fRefCount = 1;
 	source = NULL;

src/system/kernel/vm/VMDeviceCache.cpp

@@ -16,7 +16,7 @@ status_t
 VMDeviceCache::Init(addr_t baseAddress, uint32 allocationFlags)
 {
 	fBaseAddress = baseAddress;
-	return VMCache::Init(CACHE_TYPE_DEVICE, allocationFlags);
+	return VMCache::Init(CACHE_TYPE_DEVICE, allocationFlags, "VMDeviceCache");
 }
 
 

src/system/kernel/vm/VMNullCache.cpp

@@ -12,7 +12,7 @@
 status_t
 VMNullCache::Init(uint32 allocationFlags)
 {
-	return VMCache::Init(CACHE_TYPE_NULL, allocationFlags);
+	return VMCache::Init(CACHE_TYPE_NULL, allocationFlags, "VMNullCache");
 }