From df75e7748bae1c7098bfa358485389b897f71305 Mon Sep 17 00:00:00 2001
From: Eric W. Biederman
Date: Thu, 22 Sep 2016 13:08:36 -0500
Subject: userns: When the per user per user namespace limit is reached return
 ENOSPC

The current error codes returned when a the per user per user
namespace limit are hit (EINVAL, EUSERS, and ENFILE) are wrong.  I
asked for advice on linux-api and it we made clear that those were
the wrong error code, but a correct effor code was not suggested.

The best general error code I have found for hitting a resource limit
is ENOSPC.  It is not perfect but as it is unambiguous it will serve
until someone comes up with a better error code.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 ipc/namespace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ipc')

diff --git a/ipc/namespace.c b/ipc/namespace.c
index 730914214135..fab727d9fe09 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -33,7 +33,7 @@ static struct ipc_namespace *create_ipc_ns(struct user_namespace *user_ns,
 	struct ucounts *ucounts;
 	int err;
 
-	err = -ENFILE;
+	err = -ENOSPC;
 	ucounts = inc_ipc_namespaces(user_ns);
 	if (!ucounts)
 		goto fail;
-- 
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