move DaemonStatus manipulation out of the Annex monad to IO

I've convinced myself that nothing in DaemonStatus can deadlock,
as it always keepts the TMVar full. That was the only reason it was in the
Annex monad.

Assistant/Threads/SanityChecker.hs

@@ -26,32 +26,28 @@ thisThread = "SanityChecker"
 {- This thread wakes up occasionally to make sure the tree is in good shape. -}
 sanityCheckerThread :: ThreadState -> DaemonStatusHandle -> TransferQueue -> ChangeChan -> IO ()
 sanityCheckerThread st status transferqueue changechan = forever $ do
-	waitForNextCheck st status
+	waitForNextCheck status
 
 	debug thisThread ["starting sanity check"]
 
-	runThreadState st $
-		modifyDaemonStatus_ status $ \s -> s
-				{ sanityCheckRunning = True }
+	modifyDaemonStatus_ status $ \s -> s
+		{ sanityCheckRunning = True }
 
 	now <- getPOSIXTime -- before check started
 	catchIO (check st status transferqueue changechan)
 		(runThreadState st . warning . show)
 
-	runThreadState st $ do
-		modifyDaemonStatus_ status $ \s -> s
-			{ sanityCheckRunning = False
-			, lastSanityCheck = Just now
-			}
+	modifyDaemonStatus_ status $ \s -> s
+		{ sanityCheckRunning = False
+		, lastSanityCheck = Just now
+		}
 	
 	debug thisThread ["sanity check complete"]
 
-
 {- Only run one check per day, from the time of the last check. -}
-waitForNextCheck :: ThreadState -> DaemonStatusHandle -> IO ()
-waitForNextCheck st status = do
-	v <- runThreadState st $
-		lastSanityCheck <$> getDaemonStatus status
+waitForNextCheck :: DaemonStatusHandle -> IO ()
+waitForNextCheck status = do
+	v <- lastSanityCheck <$> getDaemonStatus status
 	now <- getPOSIXTime
 	threadDelaySeconds $ Seconds $ calcdelay now v
 	where