From a094aa0040751c60ec576c4eef9843fbd23e5066 Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Wed, 20 Nov 2019 11:40:11 +0100
Subject: [PATCH] enter: Add comment about why NS_GET_USERNS ioctl is not used

---
 app/flatpak-builtins-enter.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/flatpak-builtins-enter.c b/app/flatpak-builtins-enter.c
index efb74054..c80d493d 100644
--- a/app/flatpak-builtins-enter.c
+++ b/app/flatpak-builtins-enter.c
@@ -160,6 +160,7 @@ flatpak_builtin_enter (int           argc,
 
       if (strcmp (ns_name[i], "user_base") == 0)
         {
+          /* We could use the NS_GET_USERNS ioctl instead of the .userns bind hack, but that would require >= 4.9 kernel */
           path = g_strdup_printf ("%s/run/.userns", root_path);
           self_path = g_strdup ("/proc/self/ns/user");
         }