diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 9bf1f581b8728d2779c03fc6af0bc73b3ad98fce..b584e9a2add29034dca25e79080b10845499cb78 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2249,6 +2249,12 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, if (!looped) calc_size = max_t(u64, min_stripe_size, calc_size); + /* + * we're about to do_div by the stripe_len so lets make sure + * we end up with something bigger than a stripe + */ + calc_size = max_t(u64, calc_size, stripe_len * 4); + do_div(calc_size, stripe_len); calc_size *= stripe_len;