mdadm: added --no-sharing option for Monitor mode

--no-sharing option disables moving spares between arrays/containers.
Without the option spares are moved if needed according to config rules.
We only allow one process moving spares started with --scan option.
If there is such process running and another instance of Monitor
is starting without --scan, then we issue a warning but allow it
to continue.

Signed-off-by: Anna Czarnowska <anna.czarnowska@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/ReadMe.c b/ReadMe.c
index 07abdb7d..54a19986 100644
--- a/ReadMe.c
+++ b/ReadMe.c
@@ -185,6 +185,8 @@ struct option long_options[] = {
     {"oneshot",   0, 0, '1'},
     {"pid-file",  1, 0, 'i'},
     {"syslog",    0, 0, 'y'},
+    {"no-sharing", 0, 0, NoSharing},
+
     /* For Grow */
     {"backup-file", 1,0, BackupFile},
     {"array-size", 1, 0, 'Z'},