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target: Remove session_reinstatement parameter from ->transport_wait_for_tasks 

This patch removes the unnecessary session_reinstatement parameter from
se_cmd->transport_wait_for_tasks(), logic in transport_generic_wait_for_tasks,
and usage within iscsi-target code.

This also includes the removal of the 'bool' return from transport_put_cmd() +
transport_generic_free_cmd() that is no longer necessary.

Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2011-10-08 13:59:52 -07:00
parent 82f1c8a4e7
commit 39c05f321a
5 changed files with 22 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/target/iscsi/iscsi_target.c
View File

@ -3960,7 +3960,7 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn)
* iscsit_get_lun_for_cmd() in iscsit_handle_scsi_cmd().
*/
if (cmd->tmr_req && se_cmd->transport_wait_for_tasks)
se_cmd->transport_wait_for_tasks(se_cmd, 1, 1);
se_cmd->transport_wait_for_tasks(se_cmd, 1);
else if (cmd->se_cmd.se_cmd_flags & SCF_SE_LUN_CMD)
transport_release_cmd(se_cmd);
else
@ -3976,7 +3976,7 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn)
se_cmd = &cmd->se_cmd;
if (se_cmd->transport_wait_for_tasks)
se_cmd->transport_wait_for_tasks(se_cmd, 1, 1);
se_cmd->transport_wait_for_tasks(se_cmd, 1);
spin_lock_bh(&conn->cmd_lock);
}

15
drivers/target/iscsi/iscsi_target_erl2.c
View File

@ -148,7 +148,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess)
iscsit_release_cmd(cmd);
else
cmd->se_cmd.transport_wait_for_tasks(
&cmd->se_cmd, 1, 1);
&cmd->se_cmd, 1);
spin_lock(&cr->conn_recovery_cmd_lock);
}
spin_unlock(&cr->conn_recovery_cmd_lock);
@ -175,7 +175,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess)
iscsit_release_cmd(cmd);
else
cmd->se_cmd.transport_wait_for_tasks(
&cmd->se_cmd, 1, 1);
&cmd->se_cmd, 1);
spin_lock(&cr->conn_recovery_cmd_lock);
}
spin_unlock(&cr->conn_recovery_cmd_lock);
@ -265,7 +265,7 @@ void iscsit_discard_cr_cmds_by_expstatsn(
iscsit_release_cmd(cmd);
else
cmd->se_cmd.transport_wait_for_tasks(
&cmd->se_cmd, 1, 0);
&cmd->se_cmd, 1);
spin_lock(&cr->conn_recovery_cmd_lock);
}
spin_unlock(&cr->conn_recovery_cmd_lock);
@ -324,7 +324,7 @@ int iscsit_discard_unacknowledged_ooo_cmdsns_for_conn(struct iscsi_conn *conn)
iscsit_release_cmd(cmd);
else
cmd->se_cmd.transport_wait_for_tasks(
&cmd->se_cmd, 1, 1);
&cmd->se_cmd, 1);
spin_lock_bh(&conn->cmd_lock);
}
spin_unlock_bh(&conn->cmd_lock);
@ -383,7 +383,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
iscsit_release_cmd(cmd);
else
cmd->se_cmd.transport_wait_for_tasks(
&cmd->se_cmd, 1, 0);
&cmd->se_cmd, 1);
spin_lock_bh(&conn->cmd_lock);
continue;
}
@ -409,7 +409,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
iscsit_release_cmd(cmd);
else
cmd->se_cmd.transport_wait_for_tasks(
&cmd->se_cmd, 1, 1);
&cmd->se_cmd, 1);
spin_lock_bh(&conn->cmd_lock);
continue;
}
@ -436,8 +436,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
if ((cmd->se_cmd.se_cmd_flags & SCF_SE_LUN_CMD) &&
cmd->se_cmd.transport_wait_for_tasks)
cmd->se_cmd.transport_wait_for_tasks(&cmd->se_cmd,
0, 0);
cmd->se_cmd.transport_wait_for_tasks(&cmd->se_cmd, 0);
/*
* Add the struct iscsi_cmd to the connection recovery cmd list
*/

33
drivers/target/target_core_transport.c
View File

@ -86,7 +86,7 @@ static u32 transport_allocate_tasks(struct se_cmd *cmd,
enum dma_data_direction data_direction,
struct scatterlist *sgl, unsigned int nents);
static int transport_generic_get_mem(struct se_cmd *cmd);
static bool transport_put_cmd(struct se_cmd *cmd);
static void transport_put_cmd(struct se_cmd *cmd);
static void transport_remove_cmd_from_queue(struct se_cmd *cmd,
struct se_queue_obj *qobj);
static int transport_set_sense_codes(struct se_cmd *cmd, u8 asc, u8 ascq);
@ -1638,7 +1638,7 @@ static int transport_check_alloc_task_attr(struct se_cmd *cmd)
return 0;
}
static void transport_generic_wait_for_tasks(struct se_cmd *, int, int);
static void transport_generic_wait_for_tasks(struct se_cmd *, int);
/* transport_generic_allocate_tasks():
*
@ -2504,7 +2504,7 @@ void transport_new_cmd_failure(struct se_cmd *se_cmd)
spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
}
static void transport_nop_wait_for_tasks(struct se_cmd *, int, int);
static void transport_nop_wait_for_tasks(struct se_cmd *, int);
static inline u32 transport_get_sectors_6(
unsigned char *cdb,
@ -3736,7 +3736,7 @@ static inline void transport_free_pages(struct se_cmd *cmd)
*
* This routine releases our reference to the command and frees it if possible.
*/
static bool transport_put_cmd(struct se_cmd *cmd)
static void transport_put_cmd(struct se_cmd *cmd)
{
unsigned long flags;
int free_tasks = 0;
@ -3764,10 +3764,9 @@ static bool transport_put_cmd(struct se_cmd *cmd)
transport_free_pages(cmd);
transport_release_cmd(cmd);
return true;
return;
out_busy:
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
return false;
}
/*
@ -4331,7 +4330,7 @@ void transport_release_cmd(struct se_cmd *cmd)
}
EXPORT_SYMBOL(transport_release_cmd);
bool transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
void transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
{
if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD))
transport_release_cmd(cmd);
@ -4342,21 +4341,18 @@ bool transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
transport_lun_remove_cmd(cmd);
if (wait_for_tasks && cmd->transport_wait_for_tasks)
cmd->transport_wait_for_tasks(cmd, 0, 0);
cmd->transport_wait_for_tasks(cmd, 0);
transport_free_dev_tasks(cmd);
return transport_put_cmd(cmd);
transport_put_cmd(cmd);
}
return true;
}
EXPORT_SYMBOL(transport_generic_free_cmd);
static void transport_nop_wait_for_tasks(
struct se_cmd *cmd,
int remove_cmd,
int session_reinstatement)
int remove_cmd)
{
return;
}
@ -4537,8 +4533,7 @@ int transport_clear_lun_from_sessions(struct se_lun *lun)
*/
static void transport_generic_wait_for_tasks(
struct se_cmd *cmd,
int remove_cmd,
int session_reinstatement)
int remove_cmd)
{
unsigned long flags;
@ -4614,13 +4609,7 @@ remove:
if (!remove_cmd)
return;
if (!transport_generic_free_cmd(cmd, 0) && session_reinstatement) {
unsigned long flags;
spin_lock_irqsave(&cmd->t_state_lock, flags);
transport_all_task_dev_remove_state(cmd);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
}
transport_generic_free_cmd(cmd, 0);
}
static int transport_get_sense_codes(

2
include/target/target_core_base.h
View File

@ -480,7 +480,7 @@ struct se_cmd {
struct target_core_fabric_ops *se_tfo;
int (*transport_emulate_cdb)(struct se_cmd *);
void (*transport_split_cdb)(unsigned long long, u32, unsigned char *);
void (*transport_wait_for_tasks)(struct se_cmd *, int, int);
void (*transport_wait_for_tasks)(struct se_cmd *, int);
void (*transport_complete_callback)(struct se_cmd *);
int (*transport_qf_callback)(struct se_cmd *);

2
include/target/target_core_transport.h
View File

@ -184,7 +184,7 @@ extern int transport_check_aborted_status(struct se_cmd *, int);
extern int transport_send_check_condition_and_sense(struct se_cmd *, u8, int);
extern void transport_send_task_abort(struct se_cmd *);
extern void transport_release_cmd(struct se_cmd *);
extern bool transport_generic_free_cmd(struct se_cmd *, int);
extern void transport_generic_free_cmd(struct se_cmd *, int);
extern void transport_generic_wait_for_cmds(struct se_cmd *, int);
extern int transport_init_task_sg(struct se_task *, struct se_mem *, u32);
extern int transport_map_mem_to_sg(struct se_task *, struct list_head *,