net/mlx5e: Unregister netdev before detaching it

[cascardo/linux.git] / mm / process_vm_access.c

diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 5d453e5..07514d4 100644 (file)
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -98,9 +98,14 @@ static int process_vm_rw_single_vec(unsigned long addr,
                int pages = min(nr_pages, max_pages_per_loop);
                size_t bytes;
 
-               /* Get the pages we're interested in */
-               pages = get_user_pages_unlocked(task, mm, pa, pages,
-                                               vm_write, 0, process_pages);
+               /*
+                * Get the pages we're interested in.  We must
+                * add FOLL_REMOTE because task/mm might not
+                * current/current->mm
+                */
+               pages = __get_user_pages_unlocked(task, mm, pa, pages,
+                                                 vm_write, 0, process_pages,
+                                                 FOLL_REMOTE);
                if (pages <= 0)
                        return -EFAULT;