imsm: set array size at Create/Assemble

imsm arrays round down the effective array size to the closest 1
megabyte boundary so teach get_info_super_imsm and sysfs_set_array to
set 'md/array_size' if available (and make sure ddf uses the default
size).

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

1 files changed, 3 insertions, 0 deletions

diff --git a/mdadm.h b/mdadm.h
index f580e3e..c33ec24 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -146,6 +146,9 @@ struct mdinfo {
 	unsigned long long	component_size; /* same as array.size, except in
 						 * sectors and up to 64bits.
 						 */
+	unsigned long long	custom_array_size; /* size for non-default sized
+						    * arrays (in sectors)
+						    */
 	int			reshape_active;
 	unsigned long long	reshape_progress;
 	unsigned long long	resync_start;