1 files changed, 1 insertions, 6 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_user_sdma.c b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
index f5cb13b21445..cc04b7ba3488 100644
--- a/drivers/infiniband/hw/ipath/ipath_user_sdma.c
+++ b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
@@ -280,9 +280,7 @@ static int ipath_user_sdma_pin_pages(const struct ipath_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;
 
@@ -811,10 +809,7 @@ int ipath_user_sdma_writev(struct ipath_devdata *dd,
         while (dim) {
                 const int mxp = 8;
 
-                down_write(&current->mm->mmap_sem);
                 ret = ipath_user_sdma_queue_pkts(dd, pq, &list, iov, dim, mxp);
-                up_write(&current->mm->mmap_sem);
-
                 if (ret <= 0)
                         goto done_unlock;
                 else {