GFP_NOWAIT
skb = __dev_alloc_skb(len, GFP_NOWAIT);
if ((gfp & GFP_NOWAIT) != 0)
xa->xa_head.gfp_mask = GFP_NOWAIT;
ret = idr_alloc_cyclic(&sriov->pv_id_table, ent, 0, 0, GFP_NOWAIT);
GFP_NOWAIT);
id = idr_alloc_cyclic(&cm.local_id_table, cm_id_priv, 0, 0, GFP_NOWAIT);
id = idr_alloc(&query_idr, query, 0, 0, GFP_NOWAIT);