[PATCH 3.19.y-ckt 149/196] target: Remove first argument of target_{get,put}_sess_cmd()

From: Kamal Mostafa
Date: Tue Mar 08 2016 - 19:50:26 EST

3.19.8-ckt16 -stable review patch. If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>

commit afc16604c06414223478df3e42301ab630b9960a upstream.

The first argument of these two functions is always identical
to se_cmd->se_sess. Hence remove the first argument.

Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Reviewed-by: Sagi Grimberg <sagig@xxxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Cc: Andy Grover <agrover@xxxxxxxxxx>
Cc: <qla2xxx-upstream@xxxxxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxx>
Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/infiniband/ulp/isert/ib_isert.c | 6 +++---
drivers/infiniband/ulp/srpt/ib_srpt.c | 10 +++++-----
drivers/scsi/qla2xxx/tcm_qla2xxx.c | 2 +-
drivers/target/iscsi/iscsi_target.c | 15 +++++++--------
drivers/target/iscsi/iscsi_target_configfs.c | 2 +-
drivers/target/iscsi/iscsi_target_util.c | 4 ++--
drivers/target/target_core_tmr.c | 2 +-
drivers/target/target_core_transport.c | 20 ++++++++++----------
drivers/vhost/scsi.c | 2 +-
include/target/target_core_fabric.h | 4 ++--
10 files changed, 33 insertions(+), 34 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 46563f1..0ef089e 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1284,7 +1284,7 @@ sequence_cmd:
if (!rc && dump_payload == false && unsol_data)
iscsit_set_unsoliticed_dataout(cmd);
else if (dump_payload && imm_data)
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);

return 0;
}
@@ -1701,7 +1701,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd, bool comp_err)
cmd->se_cmd.t_state == TRANSPORT_WRITE_PENDING) {
struct se_cmd *se_cmd = &cmd->se_cmd;

- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
}

@@ -1870,7 +1870,7 @@ isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
spin_unlock_bh(&cmd->istate_lock);

if (ret) {
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
transport_send_check_condition_and_sense(se_cmd,
se_cmd->pi_err, 0);
} else {
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index eb694dd..9abc363 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1335,7 +1335,7 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx)

BUG_ON(ch->sess == NULL);

- target_put_sess_cmd(ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
goto out;
}

@@ -1366,11 +1366,11 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx)
* not been received in time.
*/
srpt_unmap_sg_to_ib_sge(ioctx->ch, ioctx);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
break;
case SRPT_STATE_MGMT_RSP_SENT:
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
break;
default:
WARN(1, "Unexpected command state (%d)", state);
@@ -1682,7 +1682,7 @@ static int srpt_check_stop_free(struct se_cmd *cmd)
struct srpt_send_ioctx *ioctx = container_of(cmd,
struct srpt_send_ioctx, cmd);

- return target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ return target_put_sess_cmd(&ioctx->cmd);
}

/**
@@ -3079,7 +3079,7 @@ static void srpt_queue_response(struct se_cmd *cmd)
ioctx->tag);
srpt_unmap_sg_to_ib_sge(ch, ioctx);
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
}
}

diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index a82db70..c763ca5 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -422,7 +422,7 @@ static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
cmd->cmd_flags |= BIT_14;
}

- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}

/* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 78dda5a..d1751ef 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -708,7 +708,7 @@ static int iscsit_add_reject_from_cmd(
*/
if (cmd->se_cmd.se_tfo != NULL) {
pr_debug("iscsi reject: calling target_put_sess_cmd >>>>>>\n");
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
}
return -1;
}
@@ -998,7 +998,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
hdr->cmdsn, be32_to_cpu(hdr->data_length), payload_length,
conn->cid);

- target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true);
+ target_get_sess_cmd(&cmd->se_cmd, true);

cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd,
scsilun_to_int(&hdr->lun));
@@ -1064,7 +1064,7 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
return -1;
else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
}
@@ -1080,7 +1080,7 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
if (!cmd->sense_reason)
return 0;

- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}

@@ -1111,7 +1111,6 @@ static int
iscsit_get_immediate_data(struct iscsi_cmd *cmd, struct iscsi_scsi_req *hdr,
bool dump_payload)
{
- struct iscsi_conn *conn = cmd->conn;
int cmdsn_ret = 0, immed_ret = IMMEDIATE_DATA_NORMAL_OPERATION;
/*
* Special case for Unsupported SAM WRITE Opcodes and ImmediateData=Yes.
@@ -1138,7 +1137,7 @@ after_immediate_data:

rc = iscsit_dump_data_payload(cmd->conn,
cmd->first_burst_len, 1);
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return rc;
} else if (cmd->unsolicited_data)
iscsit_set_unsoliticed_dataout(cmd);
@@ -1808,7 +1807,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
conn->sess->se_sess, 0, DMA_NONE,
TCM_SIMPLE_TAG, cmd->sense_buffer + 2);

- target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true);
+ target_get_sess_cmd(&cmd->se_cmd, true);
sess_ref = true;

switch (function) {
@@ -1950,7 +1949,7 @@ attach:
*/
if (sess_ref) {
pr_debug("Handle TMR, using sess_ref=true check\n");
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
}

iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index e2f1aeb..41877fe 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1961,7 +1961,7 @@ static void lio_set_default_node_attributes(struct se_node_acl *se_acl)

static int lio_check_stop_free(struct se_cmd *se_cmd)
{
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}

static void lio_release_cmd(struct se_cmd *se_cmd)
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index bcd88ec..6f788ca 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -746,7 +746,7 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
break;
case ISCSI_OP_REJECT:
@@ -762,7 +762,7 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
break;
}
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index f703e41..3830747 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -153,7 +153,7 @@ void core_tmr_abort_task(
cancel_work_sync(&se_cmd->work);
transport_wait_for_tasks(se_cmd);

- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
transport_cmd_finish_abort(se_cmd, true);

printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 30d60fa..a4f8eb9 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1379,7 +1379,7 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
* for fabrics using TARGET_SCF_ACK_KREF that expect a second
* kref_put() to happen during fabric packet acknowledgement.
*/
- ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF));
+ ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF);
if (ret)
return ret;
/*
@@ -1393,7 +1393,7 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
rc = transport_lookup_cmd_lun(se_cmd, unpacked_lun);
if (rc) {
transport_send_check_condition_and_sense(se_cmd, rc, 0);
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
return 0;
}

@@ -1544,7 +1544,7 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
se_cmd->se_tmr_req->ref_task_tag = tag;

/* See target_submit_cmd for commentary */
- ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF));
+ ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF);
if (ret) {
core_tmr_release_req(se_cmd->se_tmr_req);
return ret;
@@ -2148,7 +2148,7 @@ static int transport_release_cmd(struct se_cmd *cmd)
* If this cmd has been setup with target_get_sess_cmd(), drop
* the kref and call ->release_cmd() in kref callback.
*/
- return target_put_sess_cmd(cmd->se_sess, cmd);
+ return target_put_sess_cmd(cmd);
}

/**
@@ -2392,13 +2392,12 @@ int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
EXPORT_SYMBOL(transport_generic_free_cmd);

/* target_get_sess_cmd - Add command to active ->sess_cmd_list
- * @se_sess: session to reference
* @se_cmd: command descriptor to add
* @ack_kref: Signal that fabric will perform an ack target_put_sess_cmd()
*/
-int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
- bool ack_kref)
+int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref)
{
+ struct se_session *se_sess = se_cmd->se_sess;
unsigned long flags;
int ret = 0;

@@ -2420,7 +2419,7 @@ out:
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);

if (ret && ack_kref)
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);

return ret;
}
@@ -2448,11 +2447,12 @@ static void target_release_cmd_kref(struct kref *kref)
}

/* target_put_sess_cmd - Check for active I/O shutdown via kref_put
- * @se_sess: session to reference
* @se_cmd: command descriptor to drop
*/
-int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
+int target_put_sess_cmd(struct se_cmd *se_cmd)
{
+ struct se_session *se_sess = se_cmd->se_sess;
+
if (!se_sess) {
se_cmd->se_tfo->release_cmd(se_cmd);
return 1;
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index be0517f..38d63c6 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -596,7 +596,7 @@ static void vhost_scsi_free_cmd(struct tcm_vhost_cmd *cmd)

static int vhost_scsi_check_stop_free(struct se_cmd *se_cmd)
{
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}

static void
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 22a4e98e..e21dbdb 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -126,8 +126,8 @@ bool transport_wait_for_tasks(struct se_cmd *);
int transport_check_aborted_status(struct se_cmd *, int);
int transport_send_check_condition_and_sense(struct se_cmd *,
sense_reason_t, int);
-int target_get_sess_cmd(struct se_session *, struct se_cmd *, bool);
-int target_put_sess_cmd(struct se_session *, struct se_cmd *);
+int target_get_sess_cmd(struct se_cmd *, bool);
+int target_put_sess_cmd(struct se_cmd *);
void target_sess_cmd_list_set_waiting(struct se_session *);
void target_wait_for_sess_cmds(struct se_session *);

--
2.7.0