block: get rid of bio_rw and READA

These two are confusing leftover of the old world order, combining
values of the REQ_OP_ and REQ_ namespaces.  For callers that don't
special case we mostly just replace bi_rw with bio_data_dir or
op_is_write, except for the few cases where a switch over the REQ_OP_
values makes more sense.  Any check for READA is replaced with an
explicit check for REQ_RAHEAD.  Also remove the READA alias for
REQ_RAHEAD.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Mike Christie <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig 2016-07-19 11:28:41 +02:00 • committed by Jens Axboe
commit 70246286e9
26 changed files with 95 additions and 96 deletions

View file

@ -500,7 +500,7 @@ static int nvme_nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
struct bio *bio = rqd->bio;
struct nvme_nvm_command *cmd;
rq = blk_mq_alloc_request(q, bio_rw(bio), 0);
rq = blk_mq_alloc_request(q, bio_data_dir(bio), 0);
if (IS_ERR(rq))
return -ENOMEM;