Thread (9 messages) 9 messages, 1 author, 2019-04-09
STALE2654d REVIEWED: 1 (0M)
Revisions (3)
  1. v2 [diff vs current]
  2. resend [diff vs current]
  3. v3 current

[PATCH V3 6/7] IB/qib: Use the new FOLL_LONGTERM flag to get_user_pages_fast()

From: <hidden>
Date: 2019-03-28 16:45:57
Also in: linux-mips, linux-mm, linux-rdma, linux-s390, linux-sh, linuxppc-dev, lkml, sparclinux
Subsystem: infiniband subsystem, the rest · Maintainers: Jason Gunthorpe, Leon Romanovsky, Linus Torvalds

From: Ira Weiny <redacted>

Use the new FOLL_LONGTERM to get_user_pages_fast() to protect against
FS DAX pages being mapped.

Reviewed-by: Dan Williams <redacted>
Signed-off-by: Ira Weiny <redacted>

---
Changes from V2:
	added reviewed-by

 drivers/infiniband/hw/qib/qib_user_sdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index 31c523b2a9f5..b53cc0240e02 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -673,7 +673,7 @@ static int qib_user_sdma_pin_pages(const struct qib_devdata *dd,
 		else
 			j = npages;
 
-		ret = get_user_pages_fast(addr, j, 0, pages);
+		ret = get_user_pages_fast(addr, j, FOLL_LONGTERM, pages);
 		if (ret != j) {
 			i = 0;
 			j = ret;
-- 
2.20.1
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