X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=mm%2Fprocess_vm_access.c;h=b1597690530ce84644d8e405dab02740298706cd;hb=e20d3ef5406d3a28b76a63905b2a6bd3fb95c377;hp=5077afcd9e116b16b17c7b0ed51930d570f88701;hpb=9c37f95936b6c169e89733747504879b06e77c24;p=firefly-linux-kernel-4.4.55.git

diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 5077afcd9e11..b1597690530c 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -99,11 +99,8 @@ static int process_vm_rw_single_vec(unsigned long addr,
 		size_t bytes;
 
 		/* Get the pages we're interested in */
-		down_read(&mm->mmap_sem);
-		pages = get_user_pages(task, mm, pa, pages,
-				      vm_write, 0, process_pages, NULL);
-		up_read(&mm->mmap_sem);
-
+		pages = get_user_pages_unlocked(task, mm, pa, pages,
+						vm_write, 0, process_pages);
 		if (pages <= 0)
 			return -EFAULT;