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target: merge release_cmd methods

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The release_cmd_to_pool and release_cmd_direct methods are always the same.
Merge them into a single release_cmd method, and clean up the fallout.

(nab: fix breakage in transport_generic_free_cmd() parameter build breakage
 in drivers/target/tcm_fc/tfc_cmd.c)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig 2011-05-31 23:56:57 -04:00 committed by Nicholas Bellinger
parent db1620a278
commit 35462975b2
7 changed files with 35 additions and 60 deletions
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12
drivers/target/loopback/tcm_loop.c
View file

@ -204,13 +204,10 @@ static void tcm_loop_check_stop_free(struct se_cmd *se_cmd)
* Release the struct se_cmd, which will make a callback to release
* struct tcm_loop_cmd * in tcm_loop_deallocate_core_cmd()
*/
transport_generic_free_cmd(se_cmd, 0, 1, 0);
transport_generic_free_cmd(se_cmd, 0, 0);
}
/*
* Called from struct target_core_fabric_ops->release_cmd_to_pool()
*/
static void tcm_loop_deallocate_core_cmd(struct se_cmd *se_cmd)
static void tcm_loop_release_cmd(struct se_cmd *se_cmd)
{
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
struct tcm_loop_cmd, tl_se_cmd);
@ -395,7 +392,7 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
SUCCESS : FAILED;
release:
if (se_cmd)
transport_generic_free_cmd(se_cmd, 1, 1, 0);
transport_generic_free_cmd(se_cmd, 1, 0);
else
kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
kfree(tl_tmr);
@ -1418,8 +1415,7 @@ static int tcm_loop_register_configfs(void)
*/
fabric->tf_ops.new_cmd_map = &tcm_loop_new_cmd_map;
fabric->tf_ops.check_stop_free = &tcm_loop_check_stop_free;
fabric->tf_ops.release_cmd_to_pool = &tcm_loop_deallocate_core_cmd;
fabric->tf_ops.release_cmd_direct = &tcm_loop_deallocate_core_cmd;
fabric->tf_ops.release_cmd = &tcm_loop_release_cmd;
fabric->tf_ops.shutdown_session = &tcm_loop_shutdown_session;
fabric->tf_ops.close_session = &tcm_loop_close_session;
fabric->tf_ops.stop_session = &tcm_loop_stop_session;

8
drivers/target/target_core_configfs.c
View file

@ -427,12 +427,8 @@ static int target_fabric_tf_ops_check(
printk(KERN_ERR "Missing tfo->tpg_get_inst_index()\n");
return -EINVAL;
}
if (!(tfo->release_cmd_to_pool)) {
printk(KERN_ERR "Missing tfo->release_cmd_to_pool()\n");
return -EINVAL;
}
if (!(tfo->release_cmd_direct)) {
printk(KERN_ERR "Missing tfo->release_cmd_direct()\n");
if (!tfo->release_cmd) {
printk(KERN_ERR "Missing tfo->release_cmd()\n");
return -EINVAL;
}
if (!(tfo->shutdown_session)) {

53
drivers/target/target_core_transport.c
View file

@ -212,7 +212,7 @@ static u32 transport_allocate_tasks(struct se_cmd *cmd,
struct list_head *mem_list, int set_counts);
static int transport_generic_get_mem(struct se_cmd *cmd, u32 length);
static int transport_generic_remove(struct se_cmd *cmd,
int release_to_pool, int session_reinstatement);
int session_reinstatement);
static int transport_cmd_get_valid_sectors(struct se_cmd *cmd);
static int transport_map_sg_to_mem(struct se_cmd *cmd,
struct list_head *se_mem_list, struct scatterlist *sgl);
@ -737,7 +737,7 @@ void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
if (transport_cmd_check_stop_to_fabric(cmd))
return;
if (remove)
transport_generic_remove(cmd, 0, 0);
transport_generic_remove(cmd, 0);
}
void transport_cmd_finish_abort_tmr(struct se_cmd *cmd)
@ -747,7 +747,7 @@ void transport_cmd_finish_abort_tmr(struct se_cmd *cmd)
if (transport_cmd_check_stop_to_fabric(cmd))
return;
transport_generic_remove(cmd, 0, 0);
transport_generic_remove(cmd, 0);
}
static void transport_add_cmd_to_queue(
@ -2146,7 +2146,7 @@ static void transport_generic_request_timeout(struct se_cmd *cmd)
}
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
transport_generic_remove(cmd, 0, 0);
transport_generic_remove(cmd, 0);
}
static int
@ -3825,13 +3825,11 @@ static void transport_release_fe_cmd(struct se_cmd *cmd)
free_pages:
transport_free_pages(cmd);
transport_free_se_cmd(cmd);
cmd->se_tfo->release_cmd_direct(cmd);
cmd->se_tfo->release_cmd(cmd);
}
static int transport_generic_remove(
struct se_cmd *cmd,
int release_to_pool,
int session_reinstatement)
static int
transport_generic_remove(struct se_cmd *cmd, int session_reinstatement)
{
unsigned long flags;
@ -3858,14 +3856,7 @@ static int transport_generic_remove(
free_pages:
transport_free_pages(cmd);
if (release_to_pool) {
transport_release_cmd_to_pool(cmd);
} else {
transport_free_se_cmd(cmd);
cmd->se_tfo->release_cmd_direct(cmd);
}
transport_release_cmd(cmd);
return 0;
}
@ -4894,18 +4885,14 @@ static int transport_generic_write_pending(struct se_cmd *cmd)
return PYX_TRANSPORT_WRITE_PENDING;
}
/* transport_release_cmd_to_pool():
*
*
*/
void transport_release_cmd_to_pool(struct se_cmd *cmd)
void transport_release_cmd(struct se_cmd *cmd)
{
BUG_ON(!cmd->se_tfo);
transport_free_se_cmd(cmd);
cmd->se_tfo->release_cmd_to_pool(cmd);
cmd->se_tfo->release_cmd(cmd);
}
EXPORT_SYMBOL(transport_release_cmd_to_pool);
EXPORT_SYMBOL(transport_release_cmd);
/* transport_generic_free_cmd():
*
@ -4914,11 +4901,10 @@ EXPORT_SYMBOL(transport_release_cmd_to_pool);
void transport_generic_free_cmd(
struct se_cmd *cmd,
int wait_for_tasks,
int release_to_pool,
int session_reinstatement)
{
if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD))
transport_release_cmd_to_pool(cmd);
transport_release_cmd(cmd);
else {
core_dec_lacl_count(cmd->se_sess->se_node_acl, cmd);
@ -4936,8 +4922,7 @@ void transport_generic_free_cmd(
transport_free_dev_tasks(cmd);
transport_generic_remove(cmd, release_to_pool,
session_reinstatement);
transport_generic_remove(cmd, session_reinstatement);
}
}
EXPORT_SYMBOL(transport_generic_free_cmd);
@ -5210,7 +5195,7 @@ remove:
if (!remove_cmd)
return;
transport_generic_free_cmd(cmd, 0, 0, session_reinstatement);
transport_generic_free_cmd(cmd, 0, session_reinstatement);
}
static int transport_get_sense_codes(
@ -5616,7 +5601,7 @@ static void transport_processing_shutdown(struct se_device *dev)
transport_lun_remove_cmd(cmd);
if (transport_cmd_check_stop(cmd, 1, 0))
transport_generic_remove(cmd, 0, 0);
transport_generic_remove(cmd, 0);
}
spin_lock_irqsave(&dev->execute_task_lock, flags);
@ -5644,7 +5629,7 @@ static void transport_processing_shutdown(struct se_device *dev)
transport_lun_remove_cmd(cmd);
if (transport_cmd_check_stop(cmd, 1, 0))
transport_generic_remove(cmd, 0, 0);
transport_generic_remove(cmd, 0);
}
spin_lock_irqsave(&dev->execute_task_lock, flags);
@ -5667,7 +5652,7 @@ static void transport_processing_shutdown(struct se_device *dev)
} else {
transport_lun_remove_cmd(cmd);
if (transport_cmd_check_stop(cmd, 1, 0))
transport_generic_remove(cmd, 0, 0);
transport_generic_remove(cmd, 0);
}
}
}
@ -5739,10 +5724,10 @@ get_cmd:
transport_generic_complete_ok(cmd);
break;
case TRANSPORT_REMOVE:
transport_generic_remove(cmd, 1, 0);
transport_generic_remove(cmd, 0);
break;
case TRANSPORT_FREE_CMD_INTR:
transport_generic_free_cmd(cmd, 0, 1, 0);
transport_generic_free_cmd(cmd, 0, 0);
break;
case TRANSPORT_PROCESS_TMR:
transport_generic_do_tmr(cmd);

12
drivers/target/tcm_fc/tfc_cmd.c
View file

@ -147,7 +147,7 @@ void ft_release_cmd(struct se_cmd *se_cmd)
void ft_check_stop_free(struct se_cmd *se_cmd)
{
transport_generic_free_cmd(se_cmd, 0, 1, 0);
transport_generic_free_cmd(se_cmd, 0, 0);
}
/*
@ -304,7 +304,7 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg)
/* XXX need to find cmd if queued */
cmd->se_cmd.t_state = TRANSPORT_REMOVE;
cmd->seq = NULL;
transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
return;
}
@ -321,7 +321,7 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg)
printk(KERN_INFO "%s: unhandled frame r_ctl %x\n",
__func__, fh->fh_r_ctl);
fc_frame_free(fp);
transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
break;
}
}
@ -443,7 +443,7 @@ static void ft_send_tm(struct ft_cmd *cmd)
sess = cmd->sess;
transport_send_check_condition_and_sense(&cmd->se_cmd,
cmd->se_cmd.scsi_sense_reason, 0);
transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
ft_sess_put(sess);
return;
}
@ -645,7 +645,7 @@ static void ft_send_cmd(struct ft_cmd *cmd)
if (ret == -ENOMEM) {
transport_send_check_condition_and_sense(se_cmd,
TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
transport_generic_free_cmd(se_cmd, 0, 1, 0);
transport_generic_free_cmd(se_cmd, 0, 0);
return;
}
if (ret == -EINVAL) {
@ -654,7 +654,7 @@ static void ft_send_cmd(struct ft_cmd *cmd)
else
transport_send_check_condition_and_sense(se_cmd,
se_cmd->scsi_sense_reason, 0);
transport_generic_free_cmd(se_cmd, 0, 1, 0);
transport_generic_free_cmd(se_cmd, 0, 0);
return;
}
transport_generic_handle_cdb(se_cmd);

3
drivers/target/tcm_fc/tfc_conf.c
View file

@ -536,8 +536,7 @@ static struct target_core_fabric_ops ft_fabric_ops = {
.tpg_release_fabric_acl = ft_tpg_release_fabric_acl,
.tpg_get_inst_index = ft_tpg_get_inst_index,
.check_stop_free = ft_check_stop_free,
.release_cmd_to_pool = ft_release_cmd,
.release_cmd_direct = ft_release_cmd,
.release_cmd = ft_release_cmd,
.shutdown_session = ft_sess_shutdown,
.close_session = ft_sess_close,
.stop_session = ft_sess_stop,

3
include/target/target_core_fabric_ops.h
View file

@ -43,8 +43,7 @@ struct target_core_fabric_ops {
* I/O descriptor in transport_cmd_check_stop()
*/
void (*check_stop_free)(struct se_cmd *);
void (*release_cmd_to_pool)(struct se_cmd *);
void (*release_cmd_direct)(struct se_cmd *);
void (*release_cmd)(struct se_cmd *);
/*
* Called with spin_lock_bh(struct se_portal_group->session_lock held.
*/

4
include/target/target_core_transport.h
View file

@ -179,8 +179,8 @@ extern int transport_clear_lun_from_sessions(struct se_lun *);
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_to_pool(struct se_cmd *);
extern void transport_generic_free_cmd(struct se_cmd *, int, int, int);
extern void transport_release_cmd(struct se_cmd *);
extern void transport_generic_free_cmd(struct se_cmd *, int, 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 *,