AcoSail/kernel_optimize_test
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target: simply fabric driver queue full processing

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There is no need to schedule the delayed processing in a workqueue that
offloads it to the target processing thread.  Instead execute it directly
from the workqueue.  There will be a lot of future work in this area,
which I'd likfe to defer for now as it is not nessecary for getting rid
of the target processing thread.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig 2012-07-08 15:58:47 -04:00 committed by Nicholas Bellinger
parent 1389533ef9
commit 7a6f0a1ea5
1 changed files with 6 additions and 7 deletions
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13
drivers/target/target_core_transport.c
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@ -720,6 +720,8 @@ static void target_add_to_state_list(struct se_cmd *cmd)
/*
* Handle QUEUE_FULL / -EAGAIN and -ENOMEM status
*/
static void transport_write_pending_qf(struct se_cmd *cmd);
static void transport_complete_qf(struct se_cmd *cmd);
static void target_qf_do_work(struct work_struct *work)
{
@ -743,7 +745,10 @@ static void target_qf_do_work(struct work_struct *work)
(cmd->t_state == TRANSPORT_COMPLETE_QF_WP) ? "WRITE_PENDING"
: "UNKNOWN");
transport_add_cmd_to_queue(cmd, cmd->t_state, true);
if (cmd->t_state == TRANSPORT_COMPLETE_QF_WP)
transport_write_pending_qf(cmd);
else if (cmd->t_state == TRANSPORT_COMPLETE_QF_OK)
transport_complete_qf(cmd);
}
}
@ -3262,12 +3267,6 @@ static int transport_processing_thread(void *param)
case TRANSPORT_PROCESS_TMR:
transport_generic_do_tmr(cmd);
break;
case TRANSPORT_COMPLETE_QF_WP:
transport_write_pending_qf(cmd);
break;
case TRANSPORT_COMPLETE_QF_OK:
transport_complete_qf(cmd);
break;
default:
pr_err("Unknown t_state: %d for ITT: 0x%08x "
"i_state: %d on SE LUN: %u\n",