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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/sg.c
parent2f5a8e80f79dc82e00f4cca557dc9ceaf064b450 (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/sg.c')
-rw-r--r--drivers/scsi/sg.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 226a8def7a8b..e0e308b7e01a 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1698,7 +1698,8 @@ sg_start_req(Sg_request *srp, unsigned char *cmd)
* With scsi-mq disabled, blk_get_request() with GFP_KERNEL usually
* does not sleep except under memory pressure.
*/
- rq = blk_get_request(q, rw, GFP_KERNEL);
+ rq = blk_get_request(q, hp->dxfer_direction == SG_DXFER_TO_DEV ?
+ REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL);
if (IS_ERR(rq)) {
kfree(long_cmdp);
return PTR_ERR(rq);

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