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Commit 7a6f0a1e authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Nicholas Bellinger
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target: simply fabric driver queue full processing 



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: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 1389533e

drivers/target/target_core_transport.c

+6 −7
Original line number Diff line number Diff line
@@ -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",