Create: round to chunk size

There are probably other places where rounding size to
chunksize is needed, or useful, but this is a good start.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/Create.c b/Create.c
index d33f891..9f52b41 100644
--- a/Create.c
+++ b/Create.c
@@ -261,6 +261,8 @@ int Create(struct supertype *st, char *mddev,
 		return 1;
 	}
 	
+	if (size && chunk)
+		size &= ~(unsigned long long)(chunk - 1);
 	newsize = size * 2;
 	if (st && ! st->ss->validate_geometry(st, level, layout, raiddisks,
 					      chunk, size*2, NULL, &newsize, verbose>=0))