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authorChristoph Hellwig <hch@lst.de>2017-01-31 16:57:31 +0100
committerJens Axboe <axboe@fb.com>2017-01-31 14:00:44 -0700
commitaebf526b53aea164508730427597d45f3e06b376 (patch)
tree98ab726d0f7feb610feee9830246c900c6919eea /drivers/scsi/st.c
parent2f5a8e80f79dc82e00f4cca557dc9ceaf064b450 (diff)
downloadlinux-aebf526b53aea164508730427597d45f3e06b376.tar.bz2
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/st.c')
-rw-r--r--drivers/scsi/st.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 4af900100a24..81212d4bd9bf 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -541,11 +541,11 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd,
struct scsi_request *rq;
struct rq_map_data *mdata = &SRpnt->stp->buffer->map_data;
int err = 0;
- int write = (data_direction == DMA_TO_DEVICE);
struct scsi_tape *STp = SRpnt->stp;
- req = blk_get_request(SRpnt->stp->device->request_queue, write,
- GFP_KERNEL);
+ req = blk_get_request(SRpnt->stp->device->request_queue,
+ data_direction == DMA_TO_DEVICE ?
+ REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL);
if (IS_ERR(req))
return DRIVER_ERROR << 24;
rq = scsi_req(req);