Hello, James.
This patch makes scsi_send_eh_cmnd() use sdev and shost instead of
referencing them through scmd-> everytime. Following timer cleanup
patchset assumes this patch is applied.
Signed-off-by: Tejun Heo <[email protected]>
Index: scsi-reqfn-export/drivers/scsi/scsi_error.c
===================================================================
--- scsi-reqfn-export.orig/drivers/scsi/scsi_error.c 2005-04-10 15:20:09.000000000 +0900
+++ scsi-reqfn-export/drivers/scsi/scsi_error.c 2005-04-10 15:25:21.000000000 +0900
@@ -485,7 +485,8 @@ static void scsi_eh_done(struct scsi_cmn
**/
static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout)
{
- struct Scsi_Host *host = scmd->device->host;
+ struct scsi_device *sdev = scmd->device;
+ struct Scsi_Host *shost = sdev->host;
DECLARE_MUTEX_LOCKED(sem);
unsigned long flags;
int rtn = SUCCESS;
@@ -496,27 +497,27 @@ static int scsi_send_eh_cmnd(struct scsi
*/
scmd->owner = SCSI_OWNER_LOWLEVEL;
- if (scmd->device->scsi_level <= SCSI_2)
+ if (sdev->scsi_level <= SCSI_2)
scmd->cmnd[1] = (scmd->cmnd[1] & 0x1f) |
- (scmd->device->lun << 5 & 0xe0);
+ (sdev->lun << 5 & 0xe0);
scsi_add_timer(scmd, timeout, scsi_eh_times_out);
/*
* set up the semaphore so we wait for the command to complete.
*/
- scmd->device->host->eh_action = &sem;
+ shost->eh_action = &sem;
scmd->request->rq_status = RQ_SCSI_BUSY;
- spin_lock_irqsave(scmd->device->host->host_lock, flags);
+ spin_lock_irqsave(shost->host_lock, flags);
scsi_log_send(scmd);
- host->hostt->queuecommand(scmd, scsi_eh_done);
- spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
+ shost->hostt->queuecommand(scmd, scsi_eh_done);
+ spin_unlock_irqrestore(shost->host_lock, flags);
down(&sem);
scsi_log_completion(scmd, SUCCESS);
- scmd->device->host->eh_action = NULL;
+ shost->eh_action = NULL;
/*
* see if timeout. if so, tell the host to forget about it.
@@ -536,10 +537,10 @@ static int scsi_send_eh_cmnd(struct scsi
* abort a timed out command or not. not sure how
* we should treat them differently anyways.
*/
- spin_lock_irqsave(scmd->device->host->host_lock, flags);
- if (scmd->device->host->hostt->eh_abort_handler)
- scmd->device->host->hostt->eh_abort_handler(scmd);
- spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
+ spin_lock_irqsave(shost->host_lock, flags);
+ if (shost->hostt->eh_abort_handler)
+ shost->hostt->eh_abort_handler(scmd);
+ spin_unlock_irqrestore(shost->host_lock, flags);
scmd->request->rq_status = RQ_SCSI_DONE;
scmd->owner = SCSI_OWNER_ERROR_HANDLER;
-
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