tree 5a6dbc8fc6055c0334f4a97540e36a7844b9c482
parent 9dfa52831e96194b8649613e3131baa2c109f7dc
author NeilBrown <neilb@suse.de> 1190716559 +0200
committer Jens Axboe <axboe@carl.home.kernel.dk> 1192001156 +0200

Introduce rq_for_each_segment replacing rq_for_each_bio

Every usage of rq_for_each_bio wraps a usage of
bio_for_each_segment, so these can be combined into
rq_for_each_segment.

We define "struct req_iterator" to hold the 'bio' and 'index' that
are needed for the double iteration.

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

Various compile fixes by me...

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>