iscsi: add member for NUMA aware order workqueue

euleros inclusion
category: feature
feature: Implement NUMA affinity for order workqueue

-------------------------------------------------

Add member to struct iscsi_conn.
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Reviewed-By: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

include/linux/workqueue.h

@@ -361,6 +361,7 @@ enum {
 	__WQ_ORDERED		= 1 << 17, /* internal: workqueue is ordered */
 	__WQ_LEGACY		= 1 << 18, /* internal: create*_workqueue() */
 	__WQ_ORDERED_EXPLICIT	= 1 << 19, /* internal: alloc_ordered_workqueue() */
+	__WQ_DYNAMIC		= 1 << 25, /* internal: only support single work order WQ */
 
 	WQ_MAX_ACTIVE		= 512,	  /* I like 512, better ideas? */
 	WQ_MAX_UNBOUND_PER_CPU	= 4,	  /* 4 * #cpus for unbound wq */

include/scsi/libiscsi.h

@@ -253,6 +253,7 @@ struct iscsi_conn {
 	/* custom statistics */
 	uint32_t		eh_abort_cnt;
 	uint32_t		fmr_unalign_cnt;
+	int			intimate_cpu;
 };
 
 struct iscsi_pool {