Commit 143692d1 authored by Ziye Yang's avatar Ziye Yang Committed by Jim Harris
Browse files

iscsi: handle the corner case while partial read is failed 



Change-Id: If2ba687d49bd5e282c3a5f8516760859376dc658
Signed-off-by: default avatarZiye Yang <ziye.yang@intel.com>
parent 2a3154bd

lib/iscsi/iscsi.c

+14 −0
Original line number Diff line number Diff line
@@ -2700,6 +2700,20 @@ spdk_iscsi_transfer_in(struct spdk_iscsi_conn *conn, 
	data_len = task->scsi.data_transferred;

	transfer_len = task->scsi.length;



	if (task->scsi.status != SPDK_SCSI_STATUS_GOOD) {

		if (task != primary) {

			conn->data_in_cnt--;

		} else {

			/* handle the case that it is a primary task which has subtasks */

			if (primary->scsi.transfer_len != task->scsi.length) {

				conn->data_in_cnt--;

				spdk_iscsi_task_put(task);

			}

		}



		return 0;

	}



	if (data_len < transfer_len) {

		/* underflow */

		SPDK_TRACELOG(SPDK_TRACE_DEBUG, "Underflow %u/%u\n",