diff options
Diffstat (limited to 'fs/pidfs.c')
| -rw-r--r-- | fs/pidfs.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/pidfs.c b/fs/pidfs.c index dba703d4ce4a..1e20e36e0ed5 100644 --- a/fs/pidfs.c +++ b/fs/pidfs.c @@ -517,14 +517,18 @@ static long pidfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) switch (cmd) { /* Namespaces that hang of nsproxy. */ case PIDFD_GET_CGROUP_NAMESPACE: +#ifdef CONFIG_CGROUPS if (!ns_ref_get(nsp->cgroup_ns)) break; ns_common = to_ns_common(nsp->cgroup_ns); +#endif break; case PIDFD_GET_IPC_NAMESPACE: +#ifdef CONFIG_IPC_NS if (!ns_ref_get(nsp->ipc_ns)) break; ns_common = to_ns_common(nsp->ipc_ns); +#endif break; case PIDFD_GET_MNT_NAMESPACE: if (!ns_ref_get(nsp->mnt_ns)) @@ -532,32 +536,43 @@ static long pidfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ns_common = to_ns_common(nsp->mnt_ns); break; case PIDFD_GET_NET_NAMESPACE: +#ifdef CONFIG_NET_NS if (!ns_ref_get(nsp->net_ns)) break; ns_common = to_ns_common(nsp->net_ns); +#endif break; case PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE: +#ifdef CONFIG_PID_NS if (!ns_ref_get(nsp->pid_ns_for_children)) break; ns_common = to_ns_common(nsp->pid_ns_for_children); +#endif break; case PIDFD_GET_TIME_NAMESPACE: +#ifdef CONFIG_TIME_NS if (!ns_ref_get(nsp->time_ns)) break; ns_common = to_ns_common(nsp->time_ns); +#endif break; case PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE: +#ifdef CONFIG_TIME_NS if (!ns_ref_get(nsp->time_ns_for_children)) break; ns_common = to_ns_common(nsp->time_ns_for_children); +#endif break; case PIDFD_GET_UTS_NAMESPACE: +#ifdef CONFIG_UTS_NS if (!ns_ref_get(nsp->uts_ns)) break; ns_common = to_ns_common(nsp->uts_ns); +#endif break; /* Namespaces that don't hang of nsproxy. */ case PIDFD_GET_USER_NAMESPACE: +#ifdef CONFIG_USER_NS scoped_guard(rcu) { struct user_namespace *user_ns; @@ -566,8 +581,10 @@ static long pidfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break; ns_common = to_ns_common(user_ns); } +#endif break; case PIDFD_GET_PID_NAMESPACE: +#ifdef CONFIG_PID_NS scoped_guard(rcu) { struct pid_namespace *pid_ns; @@ -576,6 +593,7 @@ static long pidfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break; ns_common = to_ns_common(pid_ns); } +#endif break; default: return -ENOIOCTLCMD; |