memdup_user(): switch to GFP_USER

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
mariux64 · Jan 7, 2018 · 6c2c97a · 6c2c97a
1 parent 105f2b7
commit 6c2c97a
Showing 1 changed file with 1 addition and 6 deletions.
diff --git a/mm/util.c b/mm/util.c
@@ -156,12 +156,7 @@ void *memdup_user(const void __user *src, size_t len)
 {
 	void *p;
 
-	/*
-	 * Always use GFP_KERNEL, since copy_from_user() can sleep and
-	 * cause pagefault, which makes it pointless to use GFP_NOFS
-	 * or GFP_ATOMIC.
-	 */
-	p = kmalloc_track_caller(len, GFP_KERNEL);
+	p = kmalloc_track_caller(len, GFP_USER);
 	if (!p)
 		return ERR_PTR(-ENOMEM);