From 9000bcd649b26aef4c35d2941f8a65f05bbb9ee1 Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 13 Dec 2007 12:43:32 -0600
Subject: [PATCH] [SCSI] libiscsi: Do not fail commands immediately during
logout
If the target requests a logout, then we do not want
to fail commands to scsi-ml right away. This patch just
fails in pending commands for a requeue immediately, and then lets
iscsid handle running commands like normal recovery.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
drivers/scsi/libiscsi.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 96883614ba08d..b17081bed128a 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -917,7 +917,7 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
conn->ctask = list_entry(conn->xmitqueue.next,
struct iscsi_cmd_task, running);
if (conn->session->state == ISCSI_STATE_LOGGING_OUT) {
- fail_command(conn, conn->ctask, DID_NO_CONNECT << 16);
+ fail_command(conn, conn->ctask, DID_IMM_RETRY << 16);
continue;
}
if (iscsi_prep_scsi_cmd_pdu(conn->ctask)) {
@@ -1024,21 +1024,19 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
* be entering our queuecommand while a block is starting
* up because the block code is not locked)
*/
- if (session->state == ISCSI_STATE_IN_RECOVERY) {
+ switch (session->state) {
+ case ISCSI_STATE_IN_RECOVERY:
reason = FAILURE_SESSION_IN_RECOVERY;
goto reject;
- }
-
- switch (session->state) {
+ case ISCSI_STATE_LOGGING_OUT:
+ reason = FAILURE_SESSION_LOGGING_OUT;
+ goto reject;
case ISCSI_STATE_RECOVERY_FAILED:
reason = FAILURE_SESSION_RECOVERY_TIMEOUT;
break;
case ISCSI_STATE_TERMINATE:
reason = FAILURE_SESSION_TERMINATE;
break;
- case ISCSI_STATE_LOGGING_OUT:
- reason = FAILURE_SESSION_LOGGING_OUT;
- break;
default:
reason = FAILURE_SESSION_FREED;
}
--
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