summaryrefslogtreecommitdiff
path: root/drivers/block
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/nbd.c50
-rw-r--r--drivers/block/paride/pd.c4
-rw-r--r--drivers/block/sx8.c4
-rw-r--r--drivers/block/virtio_blk.c6
4 files changed, 31 insertions, 33 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 39e5f7fae3ef..83a7ba4a3eec 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -230,29 +230,40 @@ static int nbd_send_req(struct nbd_device *nbd, struct request *req)
int result, flags;
struct nbd_request request;
unsigned long size = blk_rq_bytes(req);
+ u32 type;
+
+ if (req->cmd_type == REQ_TYPE_DRV_PRIV)
+ type = NBD_CMD_DISC;
+ else if (req->cmd_flags & REQ_DISCARD)
+ type = NBD_CMD_TRIM;
+ else if (req->cmd_flags & REQ_FLUSH)
+ type = NBD_CMD_FLUSH;
+ else if (rq_data_dir(req) == WRITE)
+ type = NBD_CMD_WRITE;
+ else
+ type = NBD_CMD_READ;
memset(&request, 0, sizeof(request));
request.magic = htonl(NBD_REQUEST_MAGIC);
- request.type = htonl(nbd_cmd(req));
-
- if (nbd_cmd(req) != NBD_CMD_FLUSH && nbd_cmd(req) != NBD_CMD_DISC) {
+ request.type = htonl(type);
+ if (type != NBD_CMD_FLUSH && type != NBD_CMD_DISC) {
request.from = cpu_to_be64((u64)blk_rq_pos(req) << 9);
request.len = htonl(size);
}
memcpy(request.handle, &req, sizeof(req));
dev_dbg(nbd_to_dev(nbd), "request %p: sending control (%s@%llu,%uB)\n",
- req, nbdcmd_to_ascii(nbd_cmd(req)),
+ req, nbdcmd_to_ascii(type),
(unsigned long long)blk_rq_pos(req) << 9, blk_rq_bytes(req));
result = sock_xmit(nbd, 1, &request, sizeof(request),
- (nbd_cmd(req) == NBD_CMD_WRITE) ? MSG_MORE : 0);
+ (type == NBD_CMD_WRITE) ? MSG_MORE : 0);
if (result <= 0) {
dev_err(disk_to_dev(nbd->disk),
"Send control failed (result %d)\n", result);
return -EIO;
}
- if (nbd_cmd(req) == NBD_CMD_WRITE) {
+ if (type == NBD_CMD_WRITE) {
struct req_iterator iter;
struct bio_vec bvec;
/*
@@ -352,7 +363,7 @@ static struct request *nbd_read_stat(struct nbd_device *nbd)
}
dev_dbg(nbd_to_dev(nbd), "request %p: got reply\n", req);
- if (nbd_cmd(req) == NBD_CMD_READ) {
+ if (rq_data_dir(req) != WRITE) {
struct req_iterator iter;
struct bio_vec bvec;
@@ -452,23 +463,11 @@ static void nbd_handle_req(struct nbd_device *nbd, struct request *req)
if (req->cmd_type != REQ_TYPE_FS)
goto error_out;
- nbd_cmd(req) = NBD_CMD_READ;
- if (rq_data_dir(req) == WRITE) {
- if ((req->cmd_flags & REQ_DISCARD)) {
- WARN_ON(!(nbd->flags & NBD_FLAG_SEND_TRIM));
- nbd_cmd(req) = NBD_CMD_TRIM;
- } else
- nbd_cmd(req) = NBD_CMD_WRITE;
- if (nbd->flags & NBD_FLAG_READ_ONLY) {
- dev_err(disk_to_dev(nbd->disk),
- "Write on read-only\n");
- goto error_out;
- }
- }
-
- if (req->cmd_flags & REQ_FLUSH) {
- BUG_ON(unlikely(blk_rq_sectors(req)));
- nbd_cmd(req) = NBD_CMD_FLUSH;
+ if (rq_data_dir(req) == WRITE &&
+ (nbd->flags & NBD_FLAG_READ_ONLY)) {
+ dev_err(disk_to_dev(nbd->disk),
+ "Write on read-only\n");
+ goto error_out;
}
req->errors = 0;
@@ -592,8 +591,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
fsync_bdev(bdev);
mutex_lock(&nbd->tx_lock);
blk_rq_init(NULL, &sreq);
- sreq.cmd_type = REQ_TYPE_SPECIAL;
- nbd_cmd(&sreq) = NBD_CMD_DISC;
+ sreq.cmd_type = REQ_TYPE_DRV_PRIV;
/* Check again after getting mutex back. */
if (!nbd->sock)
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index d48715b287e6..dbb4da1cdca8 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -442,7 +442,7 @@ static char *pd_buf; /* buffer for request in progress */
static enum action do_pd_io_start(void)
{
- if (pd_req->cmd_type == REQ_TYPE_SPECIAL) {
+ if (pd_req->cmd_type == REQ_TYPE_DRV_PRIV) {
phase = pd_special;
return pd_special();
}
@@ -725,7 +725,7 @@ static int pd_special_command(struct pd_unit *disk,
if (IS_ERR(rq))
return PTR_ERR(rq);
- rq->cmd_type = REQ_TYPE_SPECIAL;
+ rq->cmd_type = REQ_TYPE_DRV_PRIV;
rq->special = func;
err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0);
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 5d552857de41..59c91d49b14b 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -620,7 +620,7 @@ static int carm_array_info (struct carm_host *host, unsigned int array_idx)
spin_unlock_irq(&host->lock);
DPRINTK("blk_execute_rq_nowait, tag == %u\n", idx);
- crq->rq->cmd_type = REQ_TYPE_SPECIAL;
+ crq->rq->cmd_type = REQ_TYPE_DRV_PRIV;
crq->rq->special = crq;
blk_execute_rq_nowait(host->oob_q, NULL, crq->rq, true, NULL);
@@ -661,7 +661,7 @@ static int carm_send_special (struct carm_host *host, carm_sspc_t func)
crq->msg_bucket = (u32) rc;
DPRINTK("blk_execute_rq_nowait, tag == %u\n", idx);
- crq->rq->cmd_type = REQ_TYPE_SPECIAL;
+ crq->rq->cmd_type = REQ_TYPE_DRV_PRIV;
crq->rq->special = crq;
blk_execute_rq_nowait(host->oob_q, NULL, crq->rq, true, NULL);
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 5ea2f0bbbc7c..d4d05f064d39 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -124,7 +124,7 @@ static inline void virtblk_request_done(struct request *req)
req->resid_len = virtio32_to_cpu(vblk->vdev, vbr->in_hdr.residual);
req->sense_len = virtio32_to_cpu(vblk->vdev, vbr->in_hdr.sense_len);
req->errors = virtio32_to_cpu(vblk->vdev, vbr->in_hdr.errors);
- } else if (req->cmd_type == REQ_TYPE_SPECIAL) {
+ } else if (req->cmd_type == REQ_TYPE_DRV_PRIV) {
req->errors = (error != 0);
}
@@ -188,7 +188,7 @@ static int virtio_queue_rq(struct blk_mq_hw_ctx *hctx,
vbr->out_hdr.sector = 0;
vbr->out_hdr.ioprio = cpu_to_virtio32(vblk->vdev, req_get_ioprio(vbr->req));
break;
- case REQ_TYPE_SPECIAL:
+ case REQ_TYPE_DRV_PRIV:
vbr->out_hdr.type = cpu_to_virtio32(vblk->vdev, VIRTIO_BLK_T_GET_ID);
vbr->out_hdr.sector = 0;
vbr->out_hdr.ioprio = cpu_to_virtio32(vblk->vdev, req_get_ioprio(vbr->req));
@@ -251,7 +251,7 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str)
return PTR_ERR(req);
}
- req->cmd_type = REQ_TYPE_SPECIAL;
+ req->cmd_type = REQ_TYPE_DRV_PRIV;
err = blk_execute_rq(vblk->disk->queue, vblk->disk, req, false);
blk_put_request(req);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-26 00:27:02 +0300