diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pid.h | 1 | ||||
| -rw-r--r-- | include/linux/sched.h | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/pid.h b/include/linux/pid.h index 93da7e2d9f30..359121086de1 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -89,6 +89,7 @@ extern struct pid *FASTCALL(find_pid(int nr)); * Lookup a PID in the hash table, and return with it's count elevated. */ extern struct pid *find_get_pid(int nr); +extern struct pid *find_ge_pid(int nr); extern struct pid *alloc_pid(void); extern void FASTCALL(free_pid(struct pid *pid)); diff --git a/include/linux/sched.h b/include/linux/sched.h index 7ef899c47c29..be658e33bd26 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1358,6 +1358,17 @@ extern void wait_task_inactive(struct task_struct * p); /* de_thread depends on thread_group_leader not being a pid based check */ #define thread_group_leader(p) (p == p->group_leader) +/* Do to the insanities of de_thread it is possible for a process + * to have the pid of the thread group leader without actually being + * the thread group leader. For iteration through the pids in proc + * all we care about is that we have a task with the appropriate + * pid, we don't actually care if we have the right task. + */ +static inline int has_group_leader_pid(struct task_struct *p) +{ + return p->pid == p->tgid; +} + static inline struct task_struct *next_thread(const struct task_struct *p) { return list_entry(rcu_dereference(p->thread_group.next), |