RDMA/qib: Use GUP longterm for PSM page pining

Similar to the core change commit 5f1d43de ("IB/core: disable memory
registration of filesystem-dax vmas")

PSM should be prevented from using filesystem DAX pages.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/qib/qib_user_pages.c

@@ -67,10 +67,10 @@ static int __qib_get_user_pages(unsigned long start_page, size_t num_pages,
 	}
 
 	for (got = 0; got < num_pages; got += ret) {
-		ret = get_user_pages(start_page + got * PAGE_SIZE,
-				     num_pages - got,
-				     FOLL_WRITE | FOLL_FORCE,
-				     p + got, NULL);
+		ret = get_user_pages_longterm(start_page + got * PAGE_SIZE,
+					      num_pages - got,
+					      FOLL_WRITE | FOLL_FORCE,
+					      p + got, NULL);
 		if (ret < 0)
 			goto bail_release;
 	}