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iscsi-target: Propigate queue_data_in + queue_status errors

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This patch changes iscsi-target to propagate iscsit_transport
->iscsit_queue_data_in() and ->iscsit_queue_status() callback
errors, back up into target-core.

This allows target-core to retry failed iscsit_transport
callbacks using internal queue-full logic.

Reported-by: Potnuri Bharat Teja <bharat@chelsio.com>
Reviewed-by: Potnuri Bharat Teja <bharat@chelsio.com>
Tested-by: Potnuri Bharat Teja <bharat@chelsio.com>
Cc: Potnuri Bharat Teja <bharat@chelsio.com>
Reported-by: Steve Wise <swise@opengridcomputing.com>
Cc: Steve Wise <swise@opengridcomputing.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger
2016-10-30 17:30:08 -07:00
parent fa7e25cf13
commit a4467018c2
4 changed files with 10 additions and 13 deletions
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5
drivers/target/iscsi/iscsi_target_util.c
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@@ -567,7 +567,7 @@ static void iscsit_remove_cmd_from_immediate_queue(
}
}
void iscsit_add_cmd_to_response_queue(
int iscsit_add_cmd_to_response_queue(
struct iscsi_cmd *cmd,
struct iscsi_conn *conn,
u8 state)
@@ -578,7 +578,7 @@ void iscsit_add_cmd_to_response_queue(
if (!qr) {
pr_err("Unable to allocate memory for"
" struct iscsi_queue_req\n");
return;
return -ENOMEM;
}
INIT_LIST_HEAD(&qr->qr_list);
qr->cmd = cmd;
@@ -590,6 +590,7 @@ void iscsit_add_cmd_to_response_queue(
spin_unlock_bh(&conn->response_queue_lock);
wake_up(&conn->queues_wq);
return 0;
}
struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *conn)