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authorBart Van Assche <bart.vanassche@sandisk.com>2017-05-23 16:48:43 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2017-07-06 23:11:26 -0700
commit4412a67131a037fa1d032bcd50270e9d336a775d (patch)
treec4db961dcc2f01c62d0b34c7b73be17d108229d1 /drivers/target
parent4c1f0e65397f4e5768b955c32489d5b4b6b92a90 (diff)
downloadlinux-next-4412a67131a037fa1d032bcd50270e9d336a775d.tar.gz
target/iscsi: Remove second argument of __iscsit_free_cmd()
Initialize .data_direction to DMA_NONE in iscsit_allocate_cmd() such that the second argument of __iscsit_free_cmd() can be left out. Note: this patch causes the first part of __iscsit_free_cmd() no longer to be skipped for TMFs. That's fine since no data segments are associated with TMFs. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Cc: David Disseldorp <ddiss@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/iscsi/iscsi_target.c4
-rw-r--r--drivers/target/iscsi/iscsi_target_util.c29
-rw-r--r--drivers/target/iscsi/iscsi_target_util.h2
3 files changed, 15 insertions, 20 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 3fdca2cdd8da..735d4ff2d0ce 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -488,15 +488,13 @@ EXPORT_SYMBOL(iscsit_queue_rsp);
void iscsit_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
{
- bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD);
-
spin_lock_bh(&conn->cmd_lock);
if (!list_empty(&cmd->i_conn_node) &&
!(cmd->se_cmd.transport_state & CMD_T_FABRIC_STOP))
list_del_init(&cmd->i_conn_node);
spin_unlock_bh(&conn->cmd_lock);
- __iscsit_free_cmd(cmd, scsi_cmd, true);
+ __iscsit_free_cmd(cmd, true);
}
EXPORT_SYMBOL(iscsit_aborted_task);
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 7d3e2fcc26a0..41b9e7cc08b8 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -167,6 +167,7 @@ struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *conn, int state)
cmd->se_cmd.map_tag = tag;
cmd->conn = conn;
+ cmd->data_direction = DMA_NONE;
INIT_LIST_HEAD(&cmd->i_conn_node);
INIT_LIST_HEAD(&cmd->datain_list);
INIT_LIST_HEAD(&cmd->cmd_r2t_list);
@@ -711,19 +712,16 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd)
}
EXPORT_SYMBOL(iscsit_release_cmd);
-void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd,
- bool check_queues)
+void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool check_queues)
{
struct iscsi_conn *conn = cmd->conn;
- if (scsi_cmd) {
- if (cmd->data_direction == DMA_TO_DEVICE) {
- iscsit_stop_dataout_timer(cmd);
- iscsit_free_r2ts_from_list(cmd);
- }
- if (cmd->data_direction == DMA_FROM_DEVICE)
- iscsit_free_all_datain_reqs(cmd);
+ if (cmd->data_direction == DMA_TO_DEVICE) {
+ iscsit_stop_dataout_timer(cmd);
+ iscsit_free_r2ts_from_list(cmd);
}
+ if (cmd->data_direction == DMA_FROM_DEVICE)
+ iscsit_free_all_datain_reqs(cmd);
if (conn && check_queues) {
iscsit_remove_cmd_from_immediate_queue(cmd, conn);
@@ -738,23 +736,22 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
{
struct se_cmd *se_cmd = NULL;
int rc;
- bool op_scsi = false;
+
/*
* Determine if a struct se_cmd is associated with
* this struct iscsi_cmd.
*/
switch (cmd->iscsi_opcode) {
case ISCSI_OP_SCSI_CMD:
- op_scsi = true;
/*
* Fallthrough
*/
case ISCSI_OP_SCSI_TMFUNC:
se_cmd = &cmd->se_cmd;
- __iscsit_free_cmd(cmd, op_scsi, shutdown);
+ __iscsit_free_cmd(cmd, shutdown);
rc = transport_generic_free_cmd(se_cmd, shutdown);
if (!rc && shutdown && se_cmd->se_sess) {
- __iscsit_free_cmd(cmd, op_scsi, shutdown);
+ __iscsit_free_cmd(cmd, shutdown);
target_put_sess_cmd(se_cmd);
}
break;
@@ -766,18 +763,18 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
*/
if (cmd->se_cmd.se_tfo != NULL) {
se_cmd = &cmd->se_cmd;
- __iscsit_free_cmd(cmd, true, shutdown);
+ __iscsit_free_cmd(cmd, shutdown);
rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd->se_sess) {
- __iscsit_free_cmd(cmd, true, shutdown);
+ __iscsit_free_cmd(cmd, shutdown);
target_put_sess_cmd(se_cmd);
}
break;
}
/* Fall-through */
default:
- __iscsit_free_cmd(cmd, false, shutdown);
+ __iscsit_free_cmd(cmd, shutdown);
iscsit_release_cmd(cmd);
break;
}
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index 9e4197af8708..425160565d0c 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -37,7 +37,7 @@ extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_co
extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *);
extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *);
extern void iscsit_release_cmd(struct iscsi_cmd *);
-extern void __iscsit_free_cmd(struct iscsi_cmd *, bool, bool);
+extern void __iscsit_free_cmd(struct iscsi_cmd *, bool);
extern void iscsit_free_cmd(struct iscsi_cmd *, bool);
extern int iscsit_check_session_usage_count(struct iscsi_session *);
extern void iscsit_dec_session_usage_count(struct iscsi_session *);