RDS: use get_user_pages_fast()

Use the new function that is simpler and faster.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 4 deletions

diff --git a/net/rds/info.c b/net/rds/info.c
index 1d885535214d..62aeef37aefe 100644
--- a/net/rds/info.c
+++ b/net/rds/info.c
@@ -188,10 +188,7 @@ int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval,
                 ret = -ENOMEM;
                 goto out;
         }
-        down_read(&current->mm->mmap_sem);
-        ret = get_user_pages(current, current->mm, start, nr_pages, 1, 0,
-                             pages, NULL);
-        up_read(&current->mm->mmap_sem);
+        ret = get_user_pages_fast(start, nr_pages, 1, pages);
         if (ret != nr_pages) {
                 if (ret > 0)
                         nr_pages = ret;