Document --size=max option for --grow

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>

2 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 25e0fec..c78a97e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,8 @@
 Changes Prior to 1.12.0 release
     -   Don't use 'lstat' to check for blockdevices, use stat.
     -   Get size calculation right when in Create when BLKGESIZE64 not available
+    -   Document --size=max option for --grow
+	
 Changes Prior to 1.11.0 release
     -   Fix embarassing bug which causes --add to always fail.
 
diff --git a/mdadm.8 b/mdadm.8
index 3e1c64a..1a34690 100644
--- a/mdadm.8
+++ b/mdadm.8
@@ -344,6 +344,9 @@ for RAID level 1/4/5/6. If the array was created with a size smaller
 than the currently active drives, the extra space can be accessed
 using
 .BR --grow .
+The size can be given as
+.B max
+which means to choose the largest size that fits all on all current drives.
 
 .TP
 .BR --assume-clean