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[SCSI] libiscsi: Do not fail commands immediately during logout

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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>
This commit is contained in:
Mike Christie 2007-12-13 12:43:32 -06:00 committed by James Bottomley
parent bca1088a81
commit 9000bcd649
1 changed files with 6 additions and 8 deletions
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14
drivers/scsi/libiscsi.c
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@ -917,7 +917,7 @@ check_mgmt:
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;
}