diff --git a/fs/proc/base.c b/fs/proc/base.c
index 14def99..8a84210 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2169,11 +2169,7 @@
  */
 static int proc_fd_permission(struct inode *inode, int mask, unsigned int flags)
 {
-	int rv;
-
-	if (flags & IPERM_FLAG_RCU)
-		return -ECHILD;
-	rv = generic_permission(inode, mask, flags, NULL);
+	int rv = generic_permission(inode, mask, flags, NULL);
 	if (rv == 0)
 		return 0;
 	if (task_pid(current) == proc_pid(inode))