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-rw-r--r--drivers/scsi/scsi_lib.c16
-rw-r--r--drivers/scsi/sd.c42
-rw-r--r--drivers/scsi/sr.c21
-rw-r--r--drivers/scsi/st.c25
4 files changed, 13 insertions, 91 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 00c9bf383e23..3574ba935af8 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1212,7 +1212,7 @@ static int scsi_issue_flush_fn(request_queue_t *q, struct gendisk *disk,
return -EOPNOTSUPP;
}
-static void scsi_generic_done(struct scsi_cmnd *cmd)
+static void scsi_blk_pc_done(struct scsi_cmnd *cmd)
{
BUG_ON(!blk_pc_request(cmd->request));
/*
@@ -1224,7 +1224,7 @@ static void scsi_generic_done(struct scsi_cmnd *cmd)
scsi_io_completion(cmd, cmd->bufflen, 0);
}
-void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd)
+static void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd)
{
struct request *req = cmd->request;
@@ -1241,8 +1241,8 @@ void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd)
cmd->transfersize = req->data_len;
cmd->allowed = req->retries;
cmd->timeout_per_command = req->timeout;
+ cmd->done = scsi_blk_pc_done;
}
-EXPORT_SYMBOL_GPL(scsi_setup_blk_pc_cmnd);
static int scsi_prep_fn(struct request_queue *q, struct request *req)
{
@@ -1339,7 +1339,6 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
* happening now.
*/
if (req->flags & (REQ_CMD | REQ_BLOCK_PC)) {
- struct scsi_driver *drv;
int ret;
/*
@@ -1371,16 +1370,17 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
/*
* Initialize the actual SCSI command for this request.
*/
- if (req->rq_disk) {
+ if (req->flags & REQ_BLOCK_PC) {
+ scsi_setup_blk_pc_cmnd(cmd);
+ } else if (req->rq_disk) {
+ struct scsi_driver *drv;
+
drv = *(struct scsi_driver **)req->rq_disk->private_data;
if (unlikely(!drv->init_command(cmd))) {
scsi_release_buffers(cmd);
scsi_put_command(cmd);
goto kill;
}
- } else {
- scsi_setup_blk_pc_cmnd(cmd);
- cmd->done = scsi_generic_done;
}
}
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index fbd8e1bbad38..930db398d107 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -232,34 +232,12 @@ static void scsi_disk_put(struct scsi_disk *sdkp)
**/
static int sd_init_command(struct scsi_cmnd * SCpnt)
{
- unsigned int this_count, timeout;
- struct gendisk *disk;
- sector_t block;
struct scsi_device *sdp = SCpnt->device;
struct request *rq = SCpnt->request;
-
- timeout = sdp->timeout;
-
- /*
- * SG_IO from block layer already setup, just copy cdb basically
- */
- if (blk_pc_request(rq)) {
- scsi_setup_blk_pc_cmnd(SCpnt);
- if (rq->timeout)
- timeout = rq->timeout;
-
- goto queue;
- }
-
- /*
- * we only do REQ_CMD and REQ_BLOCK_PC
- */
- if (!blk_fs_request(rq))
- return 0;
-
- disk = rq->rq_disk;
- block = rq->sector;
- this_count = SCpnt->request_bufflen >> 9;
+ struct gendisk *disk = rq->rq_disk;
+ sector_t block = rq->sector;
+ unsigned int this_count = SCpnt->request_bufflen >> 9;
+ unsigned int timeout = sdp->timeout;
SCSI_LOG_HLQUEUE(1, printk("sd_init_command: disk=%s, block=%llu, "
"count=%d\n", disk->disk_name,
@@ -402,8 +380,6 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
SCpnt->transfersize = sdp->sector_size;
SCpnt->underflow = this_count << 9;
SCpnt->allowed = SD_MAX_RETRIES;
-
-queue:
SCpnt->timeout_per_command = timeout;
/*
@@ -837,15 +813,7 @@ static void sd_rw_intr(struct scsi_cmnd * SCpnt)
relatively rare error condition, no care is taken to avoid
unnecessary additional work such as memcpy's that could be avoided.
*/
-
- /*
- * If SG_IO from block layer then set good_bytes to stop retries;
- * else if errors, check them, and if necessary prepare for
- * (partial) retries.
- */
- if (blk_pc_request(SCpnt->request))
- good_bytes = this_count;
- else if (driver_byte(result) != 0 &&
+ if (driver_byte(result) != 0 &&
sense_valid && !sense_deferred) {
switch (sshdr.sense_key) {
case MEDIUM_ERROR:
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 18a3b756c63c..dd8050392d01 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -238,8 +238,6 @@ static void rw_intr(struct scsi_cmnd * SCpnt)
case ILLEGAL_REQUEST:
if (!(SCpnt->sense_buffer[0] & 0x90))
break;
- if (!blk_fs_request(SCpnt->request))
- break;
error_sector = (SCpnt->sense_buffer[3] << 24) |
(SCpnt->sense_buffer[4] << 16) |
(SCpnt->sense_buffer[5] << 8) |
@@ -318,23 +316,6 @@ static int sr_init_command(struct scsi_cmnd * SCpnt)
}
/*
- * these are already setup, just copy cdb basically
- */
- if (SCpnt->request->flags & REQ_BLOCK_PC) {
- scsi_setup_blk_pc_cmnd(SCpnt);
-
- if (SCpnt->timeout_per_command)
- timeout = SCpnt->timeout_per_command;
-
- goto queue;
- }
-
- if (!(SCpnt->request->flags & REQ_CMD)) {
- blk_dump_rq_flags(SCpnt->request, "sr unsup command");
- return 0;
- }
-
- /*
* we do lazy blocksize switching (when reading XA sectors,
* see CDROMREADMODE2 ioctl)
*/
@@ -422,8 +403,6 @@ static int sr_init_command(struct scsi_cmnd * SCpnt)
*/
SCpnt->transfersize = cd->device->sector_size;
SCpnt->underflow = this_count << 9;
-
-queue:
SCpnt->allowed = MAX_RETRIES;
SCpnt->timeout_per_command = timeout;
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 6e4a36af58c3..13b1d3aac265 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -194,7 +194,6 @@ static int sgl_unmap_user_pages(struct scatterlist *, const unsigned int, int);
static int st_probe(struct device *);
static int st_remove(struct device *);
-static int st_init_command(struct scsi_cmnd *);
static void do_create_driverfs_files(void);
static void do_remove_driverfs_files(void);
@@ -207,7 +206,6 @@ static struct scsi_driver st_template = {
.probe = st_probe,
.remove = st_remove,
},
- .init_command = st_init_command,
};
static int st_compression(struct scsi_tape *, int);
@@ -4181,29 +4179,6 @@ static void scsi_tape_release(struct kref *kref)
return;
}
-static void st_intr(struct scsi_cmnd *SCpnt)
-{
- /*
- * The caller should be checking the request's errors
- * value.
- */
- scsi_io_completion(SCpnt, SCpnt->bufflen, 0);
-}
-
-/*
- * st_init_command: only called via the scsi_cmd_ioctl (block SG_IO)
- * interface for REQ_BLOCK_PC commands.
- */
-static int st_init_command(struct scsi_cmnd *SCpnt)
-{
- if (!(SCpnt->request->flags & REQ_BLOCK_PC))
- return 0;
-
- scsi_setup_blk_pc_cmnd(SCpnt);
- SCpnt->done = st_intr;
- return 1;
-}
-
static int __init init_st(void)
{
validate_options();
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-05 13:56:53 +0000