Limit size of bitmap to 2million chunks.

When creating a file bitmap, choose a default size that
results in fewer than 2^21 chunks.  Without this kmalloc
failure in the kernel becomes likely.

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

1 files changed, 0 insertions, 3 deletions

diff --git a/Create.c b/Create.c
index df6d850..2cd644b 100644
--- a/Create.c
+++ b/Create.c
@@ -432,9 +432,6 @@ int Create(struct supertype *st, char *mddev, int mdfd,
 	if (bitmap_file) {
 		int uuid[4];
 
-		if (bitmap_chunk == UnSet)
-			bitmap_chunk = DEFAULT_BITMAP_CHUNK;
-
 		st->ss->uuid_from_super(uuid, super);
 		if (CreateBitmap(bitmap_file, force, (char*)uuid, bitmap_chunk,
 				 delay, write_behind,