Commit 4421c9eb authored by Mike Christie's avatar Mike Christie Committed by James Bottomley
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[SCSI] libiscsi: add debug printks for iscsi command completion path 



This patch just adds some debug statements for the abort
and completion paths.

Signed-off-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent b3cd5050

drivers/scsi/libiscsi.c

+10 −1
Original line number Diff line number Diff line
@@ -393,10 +393,12 @@ static void iscsi_free_task(struct iscsi_task *task) 
	struct iscsi_session *session = conn->session;

	struct scsi_cmnd *sc = task->sc;



	ISCSI_DBG_SESSION(session, "freeing task itt 0x%x state %d sc %p\n",

			  task->itt, task->state, task->sc);



	session->tt->cleanup_task(task);

	task->state = ISCSI_TASK_FREE;

	task->sc = NULL;



	/*

	 * login task is preallocated so do not free

	 */
@@ -451,6 +453,9 @@ static void iscsi_complete_task(struct iscsi_task *task, int state) 
{

	struct iscsi_conn *conn = task->conn;



	ISCSI_DBG_SESSION(conn->session,

			  "complete task itt 0x%x state %d sc %p\n",

			  task->itt, task->state, task->sc);

	if (task->state == ISCSI_TASK_COMPLETED ||

	    task->state == ISCSI_TASK_ABRT_TMF ||

	    task->state == ISCSI_TASK_ABRT_SESS_RECOV)
@@ -1836,6 +1841,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) 
	cls_session = starget_to_session(scsi_target(sc->device));

	session = cls_session->dd_data;



	ISCSI_DBG_SESSION(session, "aborting sc %p\n", sc);



	mutex_lock(&session->eh_mutex);

	spin_lock_bh(&session->lock);

	/*
@@ -1858,6 +1865,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) 
	    sc->SCp.phase != session->age) {

		spin_unlock_bh(&session->lock);

		mutex_unlock(&session->eh_mutex);

		ISCSI_DBG_SESSION(session, "failing abort due to dropped "

				  "session.\n");

		return FAILED;

	}