update TODO

TODO

@@ -23,6 +23,13 @@ Janitorial Clean-ups:
 
 Features:
 
+* clean up sleep.c:
+  - Use CLOCK_BOOTTIME_ALARM for waking up s2h instead of RTC ioctls
+  - Parse sleep.conf only once, and parse its whole contents so that we don't
+    have to parse it again and again in s2h
+  - Make sure resume= and resume_offset= on the kernel cmdline always take
+    precedence
+
 * maybe add a seccomp-based high-level filter that blocks creation of suid/sgid
   files.