Prevent from error on umount /proc if userns are used.

Signed-off-by: Przemek Rudy <prudy1@o2.pl> Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
lxc · Aug 13, 2015 · 4a5911e · 4a5911e
1 parent 5035cbc
commit 4a5911e
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/src/lxc/conf.c b/src/lxc/conf.c
@@ -1368,10 +1368,8 @@ int prepare_ramfs_root(char *root)
 			break;
 	}
 
-	if (umount2("./proc", MNT_DETACH)) {
-		SYSERROR("Unable to umount /proc");
-		return -1;
-	}
+	/* This also can be skipped if a container uses unserns */
+	umount2("./proc", MNT_DETACH);
 
 	/* It is weird, but chdir("..") moves us in a new root */
 	if (chdir("..") == -1) {