[SCSI] libiscsi: pass opcode into alloc_pdu callout

We do not need to allocate a itt for data_out, so this
passes the opcode to the alloc_pdu callout.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

5 files changed, 11 insertions, 11 deletions

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 78bf5e4538cb..12876392516e 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -119,7 +119,7 @@ error:
         iscsi_conn_failure(conn, rc);
 }
 
-static int iscsi_iser_pdu_alloc(struct iscsi_task *task)
+static int iscsi_iser_pdu_alloc(struct iscsi_task *task, uint8_t opcode)
 {
         struct iscsi_iser_task *iser_task = task->dd_data;
 
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 07d9eb14721b..de5c9b3e51fb 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -457,7 +457,7 @@ static int iscsi_sw_tcp_pdu_init(struct iscsi_task *task,
         return 0;
 }
 
-static int iscsi_sw_tcp_pdu_alloc(struct iscsi_task *task)
+static int iscsi_sw_tcp_pdu_alloc(struct iscsi_task *task, uint8_t opcode)
 {
         struct iscsi_tcp_task *tcp_task = task->dd_data;
 
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 6c4034b1561c..ddf53978f0be 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -225,13 +225,18 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
         itt_t itt;
         int rc;
 
-        rc = conn->session->tt->alloc_pdu(task);
+        rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_CMD);
         if (rc)
                 return rc;
         hdr = (struct iscsi_cmd *) task->hdr;
         itt = hdr->itt;
         memset(hdr, 0, sizeof(*hdr));
 
+        if (session->tt->parse_pdu_itt)
+                hdr->itt = task->hdr_itt = itt;
+        else
+                hdr->itt = task->hdr_itt = build_itt(task->itt,
+                                                     task->conn->session->age);
         task->hdr_len = 0;
         rc = iscsi_add_hdr(task, sizeof(*hdr));
         if (rc)
@@ -240,11 +245,6 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
         hdr->flags = ISCSI_ATTR_SIMPLE;
         int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
         memcpy(task->lun, hdr->lun, sizeof(task->lun));
-        if (session->tt->parse_pdu_itt)
-                hdr->itt = task->hdr_itt = itt;
-        else
-                hdr->itt = task->hdr_itt = build_itt(task->itt,
-                                                     task->conn->session->age);
         hdr->cmdsn = task->cmdsn = cpu_to_be32(session->cmdsn);
         session->cmdsn++;
         hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
@@ -532,7 +532,7 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
         } else
                 task->data_count = 0;
 
-        if (conn->session->tt->alloc_pdu(task)) {
+        if (conn->session->tt->alloc_pdu(task, hdr->opcode)) {
                 iscsi_conn_printk(KERN_ERR, conn, "Could not allocate "
                                  "pdu for mgmt task.\n");
                 goto requeue_task;
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index e86508936314..9df6b3436e4a 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -1021,7 +1021,7 @@ flush:
                 return 0;
         }
 
-        rc = conn->session->tt->alloc_pdu(task);
+        rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_DATA_OUT);
         if (rc)
                 return rc;
         iscsi_prep_data_out_pdu(task, r2t, (struct iscsi_data *) task->hdr);
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index e13cb20f1eae..b50aabe2861e 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -118,7 +118,7 @@ struct iscsi_transport {
         int (*xmit_task) (struct iscsi_task *task);
         void (*cleanup_task) (struct iscsi_task *task);
 
-        int (*alloc_pdu) (struct iscsi_task *task);
+        int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode);
         int (*xmit_pdu) (struct iscsi_task *task);
         int (*init_pdu) (struct iscsi_task *task, unsigned int offset,
                          unsigned int count);