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target: Drop legacy se_cmd->task_stop_comp + REQUEST_STOP usage

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With CMD_T_FABRIC_STOP + se_cmd->cmd_wait_set usage in place,
go ahead and drop left-over CMD_T_REQUEST_STOP checks in
target_complete_cmd() and unused target_stop_cmd().

Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Himanshu Madhani <himanshu.madhani@qlogic.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Andy Grover <agrover@redhat.com>
Cc: Mike Christie <mchristi@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2016-01-29 00:07:25 -08:00
parent 310d3d314b
commit 57dae19065
3 changed files with 0 additions and 42 deletions
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1
drivers/target/target_core_internal.h
View File

@ -141,7 +141,6 @@ void transport_dump_vpd_proto_id(struct t10_vpd *, unsigned char *, int);
int transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int);
int transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
int transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags);
void transport_clear_lun_ref(struct se_lun *);
void transport_send_task_abort(struct se_cmd *);
sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size);

37
drivers/target/target_core_transport.c
View File

@ -692,15 +692,6 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
success = 1;
}
/*
* See if we are waiting to complete for an exception condition.
*/
if (cmd->transport_state & CMD_T_REQUEST_STOP) {
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
complete(&cmd->task_stop_comp);
return;
}
/*
* Check for case where an explicit ABORT_TASK has been received
* and transport_wait_for_tasks() will be waiting for completion..
@ -1202,7 +1193,6 @@ void transport_init_se_cmd(
INIT_LIST_HEAD(&cmd->state_list);
init_completion(&cmd->t_transport_stop_comp);
init_completion(&cmd->cmd_wait_comp);
init_completion(&cmd->task_stop_comp);
spin_lock_init(&cmd->t_state_lock);
kref_init(&cmd->cmd_kref);
cmd->transport_state = CMD_T_DEV_ACTIVE;
@ -1633,33 +1623,6 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
}
EXPORT_SYMBOL(target_submit_tmr);
/*
* If the cmd is active, request it to be stopped and sleep until it
* has completed.
*/
bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags)
__releases(&cmd->t_state_lock)
__acquires(&cmd->t_state_lock)
{
bool was_active = false;
if (cmd->transport_state & CMD_T_BUSY) {
cmd->transport_state |= CMD_T_REQUEST_STOP;
spin_unlock_irqrestore(&cmd->t_state_lock, *flags);
pr_debug("cmd %p waiting to complete\n", cmd);
wait_for_completion(&cmd->task_stop_comp);
pr_debug("cmd %p stopped successfully\n", cmd);
spin_lock_irqsave(&cmd->t_state_lock, *flags);
cmd->transport_state &= ~CMD_T_REQUEST_STOP;
cmd->transport_state &= ~CMD_T_BUSY;
was_active = true;
}
return was_active;
}
/*
* Handle SAM-esque emulation for generic transport request failures.
*/

4
include/target/target_core_base.h
View File

@ -491,7 +491,6 @@ struct se_cmd {
#define CMD_T_SENT (1 << 4)
#define CMD_T_STOP (1 << 5)
#define CMD_T_DEV_ACTIVE (1 << 7)
#define CMD_T_REQUEST_STOP (1 << 8)
#define CMD_T_BUSY (1 << 9)
#define CMD_T_TAS (1 << 10)
#define CMD_T_FABRIC_STOP (1 << 11)
@ -514,9 +513,6 @@ struct se_cmd {
struct list_head state_list;
/* old task stop completion, consider merging with some of the above */
struct completion task_stop_comp;
/* backend private data */
void *priv;