IB/ipath: Convert ipath_user_sdma_pin_pages() to use get_user_pages_fast()

[karo-tx-linux.git] / drivers / infiniband / hw / ipath / ipath_user_sdma.c

diff --git a/drivers/infiniband/hw/ipath/ipath_user_sdma.c b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
index f5cb13b2144566229c03be75e31623cb19942d45..cc04b7ba34882cc7981ec3815af73dc7a0519d91 100644 (file)
--- 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 {