block: Convert bio_copy_data() to bvec_iter

Our fancy new bvec iterator makes code like this much easier to write.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Kent Overstreet 2013-08-07 14:26:39 -07:00
commit 1cb9dda4f4