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target: move depth_left manipulation out of transport_generic_request_failure

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We only need to decrement dev->depth_left if failing a command from
__transport_execute_tasks.  Instead of doing it first thing in
transport_generic_request_failure and requiring a pseudo-flag argument
for it just opencode the decrement in the two callers (which should
be factored into a single one anyway)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig 2011-10-17 13:56:49 -04:00 committed by Nicholas Bellinger
parent cc5d0f0f61
commit 4499dda858
1 changed files with 11 additions and 12 deletions
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23
drivers/target/target_core_transport.c
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@ -1646,8 +1646,8 @@ int transport_generic_allocate_tasks(
}
EXPORT_SYMBOL(transport_generic_allocate_tasks);
static void transport_generic_request_failure(struct se_cmd *,
struct se_device *, int, int);
static void transport_generic_request_failure(struct se_cmd *, int, int);
/*
* Used by fabric module frontends to queue tasks directly.
* Many only be used from process context only
@ -1689,7 +1689,7 @@ int transport_handle_cdb_direct(
return 0;
else if (ret < 0) {
cmd->transport_error_status = ret;
transport_generic_request_failure(cmd, NULL, 0,
transport_generic_request_failure(cmd, 0,
(cmd->data_direction != DMA_TO_DEVICE));
}
return 0;
@ -1837,7 +1837,6 @@ static int transport_stop_tasks_for_cmd(struct se_cmd *cmd)
*/
static void transport_generic_request_failure(
struct se_cmd *cmd,
struct se_device *dev,
int complete,
int sc)
{
@ -1862,8 +1861,6 @@ static void transport_generic_request_failure(
atomic_read(&cmd->t_transport_stop),
atomic_read(&cmd->t_transport_sent));
if (dev)
atomic_inc(&dev->depth_left);
/*
* For SAM Task Attribute emulation for failed struct se_cmd
*/
@ -2230,7 +2227,7 @@ static int transport_execute_tasks(struct se_cmd *cmd)
if (se_dev_check_online(cmd->se_orig_obj_ptr) != 0) {
cmd->transport_error_status = PYX_TRANSPORT_LU_COMM_FAILURE;
transport_generic_request_failure(cmd, NULL, 0, 1);
transport_generic_request_failure(cmd, 0, 1);
return 0;
}
@ -2325,7 +2322,8 @@ static int __transport_execute_tasks(struct se_device *dev)
del_timer_sync(&task->task_timer);
atomic_set(&cmd->transport_sent, 0);
transport_stop_tasks_for_cmd(cmd);
transport_generic_request_failure(cmd, dev, 0, 1);
atomic_inc(&dev->depth_left);
transport_generic_request_failure(cmd, 0, 1);
goto check_depth;
}
/*
@ -2364,7 +2362,8 @@ static int __transport_execute_tasks(struct se_device *dev)
del_timer_sync(&task->task_timer);
atomic_set(&cmd->transport_sent, 0);
transport_stop_tasks_for_cmd(cmd);
transport_generic_request_failure(cmd, dev, 0, 1);
atomic_inc(&dev->depth_left);
transport_generic_request_failure(cmd, 0, 1);
}
}
@ -4767,7 +4766,7 @@ static int transport_processing_thread(void *param)
ret = cmd->se_tfo->new_cmd_map(cmd);
if (ret < 0) {
cmd->transport_error_status = ret;
transport_generic_request_failure(cmd, NULL,
transport_generic_request_failure(cmd,
0, (cmd->data_direction !=
DMA_TO_DEVICE));
break;
@ -4777,7 +4776,7 @@ static int transport_processing_thread(void *param)
break;
else if (ret < 0) {
cmd->transport_error_status = ret;
transport_generic_request_failure(cmd, NULL,
transport_generic_request_failure(cmd,
0, (cmd->data_direction !=
DMA_TO_DEVICE));
}
@ -4798,7 +4797,7 @@ static int transport_processing_thread(void *param)
transport_generic_do_tmr(cmd);
break;
case TRANSPORT_COMPLETE_FAILURE:
transport_generic_request_failure(cmd, NULL, 1, 1);
transport_generic_request_failure(cmd, 1, 1);
break;
case TRANSPORT_COMPLETE_TIMEOUT:
transport_generic_request_timeout(cmd);