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path: root/drivers/scsi/scsi.c
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Diffstat (limited to 'drivers/scsi/scsi.c')
-rw-r--r--drivers/scsi/scsi.c30
1 files changed, 11 insertions, 19 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 184bcae..d14523d 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -68,6 +68,8 @@
#include "scsi_priv.h"
#include "scsi_logging.h"
+static void scsi_done(struct scsi_cmnd *cmd);
+static int scsi_retry_command(struct scsi_cmnd *cmd);
/*
* Definitions and constants.
@@ -111,6 +113,7 @@ const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE] = {
"Unknown ",
"RAID ",
"Enclosure ",
+ "Direct-Access-RBC",
};
EXPORT_SYMBOL(scsi_device_types);
@@ -257,8 +260,6 @@ struct scsi_cmnd *scsi_get_command(struct scsi_device *dev, int gfp_mask)
memset(cmd, 0, sizeof(*cmd));
cmd->device = dev;
- cmd->state = SCSI_STATE_UNUSED;
- cmd->owner = SCSI_OWNER_NOBODY;
init_timer(&cmd->eh_timeout);
INIT_LIST_HEAD(&cmd->list);
spin_lock_irqsave(&dev->list_lock, flags);
@@ -608,10 +609,6 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
* We will use a queued command if possible, otherwise we will
* emulate the queuing and calling of completion function ourselves.
*/
-
- cmd->state = SCSI_STATE_QUEUED;
- cmd->owner = SCSI_OWNER_LOWLEVEL;
-
atomic_inc(&cmd->device->iorequest_cnt);
/*
@@ -638,10 +635,12 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
}
spin_unlock_irqrestore(host->host_lock, flags);
if (rtn) {
- atomic_inc(&cmd->device->iodone_cnt);
- scsi_queue_insert(cmd,
- (rtn == SCSI_MLQUEUE_DEVICE_BUSY) ?
- rtn : SCSI_MLQUEUE_HOST_BUSY);
+ if (scsi_delete_timer(cmd)) {
+ atomic_inc(&cmd->device->iodone_cnt);
+ scsi_queue_insert(cmd,
+ (rtn == SCSI_MLQUEUE_DEVICE_BUSY) ?
+ rtn : SCSI_MLQUEUE_HOST_BUSY);
+ }
SCSI_LOG_MLQUEUE(3,
printk("queuecommand : request rejected\n"));
}
@@ -679,7 +678,6 @@ void scsi_init_cmd_from_req(struct scsi_cmnd *cmd, struct scsi_request *sreq)
{
sreq->sr_command = cmd;
- cmd->owner = SCSI_OWNER_MIDLEVEL;
cmd->cmd_len = sreq->sr_cmd_len;
cmd->use_sg = sreq->sr_use_sg;
@@ -715,7 +713,6 @@ void scsi_init_cmd_from_req(struct scsi_cmnd *cmd, struct scsi_request *sreq)
/*
* Start the timer ticking.
*/
- cmd->abort_reason = 0;
cmd->result = 0;
SCSI_LOG_MLQUEUE(3, printk("Leaving scsi_init_cmd_from_req()\n"));
@@ -739,7 +736,7 @@ static DEFINE_PER_CPU(struct list_head, scsi_done_q);
*
* This function is interrupt context safe.
*/
-void scsi_done(struct scsi_cmnd *cmd)
+static void scsi_done(struct scsi_cmnd *cmd)
{
/*
* We don't have to worry about this one timing out any more.
@@ -764,8 +761,6 @@ void __scsi_done(struct scsi_cmnd *cmd)
* Set the serial numbers back to zero
*/
cmd->serial_number = 0;
- cmd->state = SCSI_STATE_BHQUEUE;
- cmd->owner = SCSI_OWNER_BH_HANDLER;
atomic_inc(&cmd->device->iodone_cnt);
if (cmd->result)
@@ -834,7 +829,7 @@ static void scsi_softirq(struct softirq_action *h)
* level drivers should not become re-entrant as a result of
* this.
*/
-int scsi_retry_command(struct scsi_cmnd *cmd)
+static int scsi_retry_command(struct scsi_cmnd *cmd)
{
/*
* Restore the SCSI command state.
@@ -886,9 +881,6 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
SCSI_LOG_MLCOMPLETE(4, printk("Notifying upper driver of completion "
"for device %d %x\n", sdev->id, cmd->result));
- cmd->owner = SCSI_OWNER_HIGHLEVEL;
- cmd->state = SCSI_STATE_FINISHED;
-
/*
* We can get here with use_sg=0, causing a panic in the upper level
*/