'mdadm --wait-clean' wait for array to be marked clean

For use in distro shutdown scripts with a RAID root file system.
Returns immediately if the array is 'readonly', or not an externally
managed array.  It is up to the distro's scripts to make sure no new
writes hit the device after this returns 'true'.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/ReadMe.c b/ReadMe.c
index 12ed17f..1fcad30 100644
--- a/ReadMe.c
+++ b/ReadMe.c
@@ -161,6 +161,7 @@ struct option long_options[] = {
     {"readwrite", 0, 0, 'w'},
     {"no-degraded",0,0,  NoDegraded },
     {"wait",	  0, 0, 'W'},
+    {"wait-clean", 0, 0, Waitclean },
 
     /* For Detail/Examine */
     {"brief",	  0, 0, 'b'},