diff options
Diffstat (limited to 'include/linux/pid.h')
| -rw-r--r-- | include/linux/pid.h | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/include/linux/pid.h b/include/linux/pid.h index e29a900a849..f84d532b5d2 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -118,18 +118,17 @@ extern struct pid *find_pid(int nr); */ extern struct pid *find_get_pid(int nr); extern struct pid *find_ge_pid(int nr, struct pid_namespace *); +int next_pidmap(struct pid_namespace *pid_ns, int last); extern struct pid *alloc_pid(struct pid_namespace *ns); extern void FASTCALL(free_pid(struct pid *pid)); -extern void zap_pid_ns_processes(struct pid_namespace *pid_ns); /* * the helpers to get the pid's id seen from different namespaces * * pid_nr() : global id, i.e. the id seen from the init namespace; - * pid_vnr() : virtual id, i.e. the id seen from the namespace this pid - * belongs to. this only makes sence when called in the - * context of the task that belongs to the same namespace; + * pid_vnr() : virtual id, i.e. the id seen from the pid namespace of + * current. * pid_nr_ns() : id seen from the ns specified. * * see also task_xid_nr() etc in include/linux/sched.h @@ -144,14 +143,7 @@ static inline pid_t pid_nr(struct pid *pid) } pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns); - -static inline pid_t pid_vnr(struct pid *pid) -{ - pid_t nr = 0; - if (pid) - nr = pid->numbers[pid->level].nr; - return nr; -} +pid_t pid_vnr(struct pid *pid); #define do_each_pid_task(pid, type, task) \ do { \ @@ -160,7 +152,13 @@ static inline pid_t pid_vnr(struct pid *pid) hlist_for_each_entry_rcu((task), pos___, \ &pid->tasks[type], pids[type].node) { + /* + * Both old and new leaders may be attached to + * the same pid in the middle of de_thread(). + */ #define while_each_pid_task(pid, type, task) \ + if (type == PIDTYPE_PID) \ + break; \ } \ } while (0) |