diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-01-31 16:57:31 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-01-31 14:00:44 -0700 |
| commit | aebf526b53aea164508730427597d45f3e06b376 (patch) | |
| tree | 98ab726d0f7feb610feee9830246c900c6919eea /drivers/scsi/sr.c | |
| parent | 2f5a8e80f79dc82e00f4cca557dc9ceaf064b450 (diff) | |
block: fold cmd_type into the REQ_OP_ space
Instead of keeping two levels of indirection for requests types, fold it
all into the operations. The little caveat here is that previously
cmd_type only applied to struct request, while the request and bio op
fields were set to plain REQ_OP_READ/WRITE even for passthrough
operations.
Instead this patch adds new REQ_OP_* for SCSI passthrough and driver
private requests, althought it has to add two for each so that we
can communicate the data in/out nature of the request.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/scsi/sr.c')
| -rw-r--r-- | drivers/scsi/sr.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 94352e4df831..2e1d910092d8 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -437,14 +437,17 @@ static int sr_init_command(struct scsi_cmnd *SCpnt) goto out; } - if (rq_data_dir(rq) == WRITE) { + switch (req_op(rq)) { + case REQ_OP_WRITE: if (!cd->writeable) goto out; SCpnt->cmnd[0] = WRITE_10; cd->cdi.media_written = 1; - } else if (rq_data_dir(rq) == READ) { + break; + case REQ_OP_READ: SCpnt->cmnd[0] = READ_10; - } else { + break; + default: blk_dump_rq_flags(rq, "Unknown sr command"); goto out; } |