On 8/17/20 4:00 AM, Ming Lei wrote:
> Block layer usually doesn't support or allow zero-length bvec. Since
> commit 1bdc76aea115 ("iov_iter: use bvec iterator to implement
> iterate_bvec()"), iterate_bvec() switches to bvec iterator. However,
> Al mentioned that 'Zero-length segments are not disallowed' in iov_iter.
>
> Fixes for_each_bvec() so that it can move on after seeing one zero
> length bvec.
Applied, thanks.
--
Jens Axboe
