# \[PATCH 3/3\] IB/HFI1: Use new get\_user\_pages\_fast\_longterm()

- From: \<hidden\>
- Date: 2019-02-11 20:17:13 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/02/5510616
- Thread: https://ratatoskr.run/linux-rdma/2019/02/5510615/t.md

```text
From: Ira Weiny <redacted>

Use the new get_user_pages_fast_longterm() call to protect against
FS DAX pages being mapped.

Signed-off-by: Ira Weiny <redacted>
---
 drivers/infiniband/hw/hfi1/user_pages.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hfi1/user_pages.c b/drivers/infiniband/hw/hfi1/user_pages.c
index 24b592c6522e..b94ab5385a09 100644
--- a/drivers/infiniband/hw/hfi1/user_pages.c
+++ b/drivers/infiniband/hw/hfi1/user_pages.c
@@ -105,7 +105,7 @@ int hfi1_acquire_user_pages(struct mm_struct *mm, unsigned long vaddr, size_t np
 {
 	int ret;
 
-	ret = get_user_pages_fast(vaddr, npages, writable, pages);
+	ret = get_user_pages_fast_longterm(vaddr, npages, writable, pages);
 	if (ret < 0)
 		return ret;
 
-- 
2.20.1

```