diff options
Diffstat (limited to 'include/linux/pid_namespace.h')
| -rw-r--r-- | include/linux/pid_namespace.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 416d4e4ce94e..0135c76c76c6 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -4,7 +4,6 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/threads.h> -#include <linux/pid.h> #include <linux/nsproxy.h> #include <linux/kref.h> @@ -32,7 +31,8 @@ extern struct pid_namespace init_pid_ns; static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns) { - kref_get(&ns->kref); + if (ns != &init_pid_ns) + kref_get(&ns->kref); return ns; } @@ -41,7 +41,8 @@ extern void free_pid_ns(struct kref *kref); static inline void put_pid_ns(struct pid_namespace *ns) { - kref_put(&ns->kref, free_pid_ns); + if (ns != &init_pid_ns) + kref_put(&ns->kref, free_pid_ns); } static inline struct pid_namespace *task_active_pid_ns(struct task_struct *tsk) @@ -51,7 +52,8 @@ static inline struct pid_namespace *task_active_pid_ns(struct task_struct *tsk) static inline struct task_struct *task_child_reaper(struct task_struct *tsk) { - return init_pid_ns.child_reaper; + BUG_ON(tsk != current); + return tsk->nsproxy->pid_ns->child_reaper; } #endif /* _LINUX_PID_NS_H */ |