07_scsi_requeue_consolidate_setup_cmd_retry_calls_in_eh.patch
scsi_setup_cmd_retry() is needed because scsi eh may alter
scsi_cmnd to issue eh commands. Consolidate calls to
scsi_setup_cmd_retry() to one place in scsi_eh_flush_done_q().
This change makes scsi_retry_command() more symmetrical with
scsi_finish_command().
Signed-off-by: Tejun Heo <[email protected]>
scsi.c | 5 -----
scsi_error.c | 31 +++++++------------------------
2 files changed, 7 insertions(+), 29 deletions(-)
Index: scsi-reqfn-export/drivers/scsi/scsi.c
===================================================================
--- scsi-reqfn-export.orig/drivers/scsi/scsi.c 2005-04-12 21:50:12.000000000 +0900
+++ scsi-reqfn-export/drivers/scsi/scsi.c 2005-04-12 21:50:12.000000000 +0900
@@ -677,11 +677,6 @@ void scsi_retry_command(struct scsi_cmnd
scsi_device_unbusy(cmd->device);
/*
- * Restore the SCSI command state.
- */
- scsi_setup_cmd_retry(cmd);
-
- /*
* Zero the sense information and result code from the last
* time we tried this command.
*/
Index: scsi-reqfn-export/drivers/scsi/scsi_error.c
===================================================================
--- scsi-reqfn-export.orig/drivers/scsi/scsi_error.c 2005-04-12 21:50:11.000000000 +0900
+++ scsi-reqfn-export/drivers/scsi/scsi_error.c 2005-04-12 21:50:12.000000000 +0900
@@ -586,11 +586,6 @@ static int scsi_request_sense(struct scs
kfree(scsi_result);
- /*
- * when we eventually call scsi_finish, we really wish to complete
- * the original request, so let's restore the original data. (db)
- */
- scsi_setup_cmd_retry(scmd);
scmd->result = saved_result;
return rtn;
}
@@ -612,14 +607,7 @@ static void scsi_eh_finish_cmd(struct sc
{
scmd->device->host->host_failed--;
scmd->state = SCSI_STATE_BHQUEUE;
-
scsi_eh_eflags_clr_all(scmd);
-
- /*
- * set this back so that the upper level can correctly free up
- * things.
- */
- scsi_setup_cmd_retry(scmd);
list_move_tail(&scmd->eh_entry, done_q);
}
@@ -756,12 +744,6 @@ retry_tur:
rtn = scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT);
/*
- * when we eventually call scsi_finish, we really wish to complete
- * the original request, so let's restore the original data. (db)
- */
- scsi_setup_cmd_retry(scmd);
-
- /*
* hey, we are done. let's look to see what happened.
*/
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n",
@@ -884,12 +866,6 @@ static int scsi_eh_try_stu(struct scsi_c
rtn = scsi_send_eh_cmnd(scmd, START_UNIT_TIMEOUT);
/*
- * when we eventually call scsi_finish, we really wish to complete
- * the original request, so let's restore the original data. (db)
- */
- scsi_setup_cmd_retry(scmd);
-
- /*
* hey, we are done. let's look to see what happened.
*/
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n",
@@ -1515,6 +1491,13 @@ static void scsi_eh_flush_done_q(struct
list_for_each_safe(lh, lh_sf, done_q) {
scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
list_del_init(lh);
+
+ /*
+ * Restore the SCSI command state such that we retry
+ * or finish the original command.
+ */
+ scsi_setup_cmd_retry(scmd);
+
if (scsi_device_online(scmd->device) &&
!blk_noretry_request(scmd->request) &&
(++scmd->retries < scmd->allowed)) {
-
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