1 files changed, 1 insertions, 5 deletions

diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index 82442085cbe6..573b4601d5b9 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -284,8 +284,7 @@ static int qib_user_sdma_pin_pages(const struct qib_devdata *dd,
         int j;
         int ret;
 
-        ret = get_user_pages(current, current->mm, addr,
-                             npages, 0, 1, pages, NULL);
+        ret = get_user_pages_fast(addr, npages, 0, pages);
 
         if (ret != npages) {
                 int i;
@@ -830,10 +829,7 @@ int qib_user_sdma_writev(struct qib_ctxtdata *rcd,
         while (dim) {
                 const int mxp = 8;
 
-                down_write(&current->mm->mmap_sem);
                 ret = qib_user_sdma_queue_pkts(dd, pq, &list, iov, dim, mxp);
-                up_write(&current->mm->mmap_sem);
-
                 if (ret <= 0)
                         goto done_unlock;
                 else {