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>
This commit is contained in:
Eric W. Biederman
2016-09-22 13:08:36 -05:00
parent 9c722e406a
commit df75e7748b
7 changed files with 7 additions and 7 deletions

View File

@@ -76,7 +76,7 @@ int create_user_ns(struct cred *new)
struct ucounts *ucounts;
int ret, i;
ret = -EUSERS;
ret = -ENOSPC;
if (parent_ns->level > 32)
goto fail;