diff options
| author |   Christoph Hellwig <hch@lst.de> | 2017-04-20 16:03:01 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-04-20 12:16:10 -0600 |
| commit | 17d5363b83f8c73ef9109f75a4a9b578f31d842f (patch) | |
| tree | 07eabf4d2ef1bbba0f5db8dcd8dba4178b5f502c /drivers/scsi/st.c | |
| parent | virtio_blk: don't use req->errors (diff) | |
| download | wireguard-linux-17d5363b83f8c73ef9109f75a4a9b578f31d842f.tar.xz wireguard-linux-17d5363b83f8c73ef9109f75a4a9b578f31d842f.zip | |
scsi: introduce a result field in struct scsi_request
This passes on the scsi_cmnd result field to users of passthrough
requests. Currently we abuse req->errors for this purpose, but that
field will go away in its current form.
Note that the old IDE code abuses the errors field in very creative
ways and stores all kinds of different values in it. I didn't dare
to touch this magic, so the abuses are brought forward 1:1.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/scsi/st.c')
| -rw-r--r-- | drivers/scsi/st.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 5408643431bb..1ea34d6f5437 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -480,7 +480,7 @@ static void st_do_stats(struct scsi_tape *STp, struct request *req) atomic64_add(ktime_to_ns(now), &STp->stats->tot_write_time); atomic64_add(ktime_to_ns(now), &STp->stats->tot_io_time); atomic64_inc(&STp->stats->write_cnt); - if (req->errors) { + if (scsi_req(req)->result) { atomic64_add(atomic_read(&STp->stats->last_write_size) - STp->buffer->cmdstat.residual, &STp->stats->write_byte_cnt); @@ -494,7 +494,7 @@ static void st_do_stats(struct scsi_tape *STp, struct request *req) atomic64_add(ktime_to_ns(now), &STp->stats->tot_read_time); atomic64_add(ktime_to_ns(now), &STp->stats->tot_io_time); atomic64_inc(&STp->stats->read_cnt); - if (req->errors) { + if (scsi_req(req)->result) { atomic64_add(atomic_read(&STp->stats->last_read_size) - STp->buffer->cmdstat.residual, &STp->stats->read_byte_cnt); @@ -518,7 +518,7 @@ static void st_scsi_execute_end(struct request *req, int uptodate) struct scsi_tape *STp = SRpnt->stp; struct bio *tmp; - STp->buffer->cmdstat.midlevel_result = SRpnt->result = req->errors; + STp->buffer->cmdstat.midlevel_result = SRpnt->result = rq->result; STp->buffer->cmdstat.residual = rq->resid_len; st_do_stats(STp, req); |