join: move to mmapped sandbox status indicator

1) close #3612
2) remove an implicit limitation on rlimit-fsize option
(could not set limit to smaller than 6 bytes without affecting
the ability to join a sandbox)
3) rename 'join-or-start' file to just 'join'
4)  when waiting for a sandbox that is not fully configured yet,
increase polling frequency from 10 per second to 100 per second

1 files changed, 1 insertions, 1 deletions

diff --git a/src/include/rundefs.h b/src/include/rundefs.h
index d56623907..4da2db748 100644
--- a/src/include/rundefs.h
+++ b/src/include/rundefs.h
@@ -113,7 +113,7 @@
 #define RUN_FSLOGGER_FILE               RUN_MNT_DIR "/fslogger"
 #define RUN_TRACE_FILE                  RUN_MNT_DIR "/trace"
 #define RUN_UMASK_FILE                  RUN_MNT_DIR "/umask"
+#define RUN_JOIN_FILE                   RUN_MNT_DIR "/join"
 #define RUN_OVERLAY_ROOT                RUN_MNT_DIR "/oroot"
-#define RUN_READY_FOR_JOIN              RUN_MNT_DIR "/ready-for-join"
 
 #endif