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| author | Eric W. Biederman <ebiederm@xmission.com> | 2016-09-22 20:08:36 +0200 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2016-09-22 20:25:56 +0200 |
| commit | df75e7748bae1c7098bfa358485389b897f71305 (patch) | |
| tree | 90b7cdeced0ec6fd9a1543826a5850611c441671 /kernel/cgroup.c | |
| parent | userns; Document per user per user namespace limits. (diff) | |
| download | linux-df75e7748bae1c7098bfa358485389b897f71305.tar.xz linux-df75e7748bae1c7098bfa358485389b897f71305.zip | |
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>
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index e9e4427fec46..f1dd4b076210 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -6354,7 +6354,7 @@ struct cgroup_namespace *copy_cgroup_ns(unsigned long flags, ucounts = inc_cgroup_namespaces(user_ns); if (!ucounts) - return ERR_PTR(-ENFILE); + return ERR_PTR(-ENOSPC); /* It is not safe to take cgroup_mutex here */ spin_lock_irq(&css_set_lock); |