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| 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/cdrom | |
| parent | 2f5a8e80f79dc82e00f4cca557dc9ceaf064b450 (diff) | |
| download | linux-stable-aebf526b53aea164508730427597d45f3e06b376.tar.gz linux-stable-aebf526b53aea164508730427597d45f3e06b376.tar.bz2 linux-stable-aebf526b53aea164508730427597d45f3e06b376.zip | |
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/cdrom')
| -rw-r--r-- | drivers/cdrom/cdrom.c | 2 | ||||
| -rw-r--r-- | drivers/cdrom/gdrom.c | 29 |
2 files changed, 16 insertions, 15 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 36f5237a8a69..8f496b4f3dd1 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2191,7 +2191,7 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, len = nr * CD_FRAMESIZE_RAW; - rq = blk_get_request(q, READ, GFP_KERNEL); + rq = blk_get_request(q, REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(rq)) { ret = PTR_ERR(rq); break; diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index 584bc3126403..b6f1a5d95bc5 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -659,23 +659,24 @@ static void gdrom_request(struct request_queue *rq) struct request *req; while ((req = blk_fetch_request(rq)) != NULL) { - if (req->cmd_type != REQ_TYPE_FS) { - printk(KERN_DEBUG "gdrom: Non-fs request ignored\n"); - __blk_end_request_all(req, -EIO); - continue; - } - if (rq_data_dir(req) != READ) { + switch (req_op(req)) { + case REQ_OP_READ: + /* + * Add to list of deferred work and then schedule + * workqueue. + */ + list_add_tail(&req->queuelist, &gdrom_deferred); + schedule_work(&work); + break; + case REQ_OP_WRITE: pr_notice("Read only device - write request ignored\n"); __blk_end_request_all(req, -EIO); - continue; + break; + default: + printk(KERN_DEBUG "gdrom: Non-fs request ignored\n"); + __blk_end_request_all(req, -EIO); + break; } - - /* - * Add to list of deferred work and then schedule - * workqueue. - */ - list_add_tail(&req->queuelist, &gdrom_deferred); - schedule_work(&work); } } |