Lines Matching full:wo
1059 static int eligible_pid(struct wait_opts *wo, struct task_struct *p) in eligible_pid() argument
1061 return wo->wo_type == PIDTYPE_MAX || in eligible_pid()
1062 task_pid_type(p, wo->wo_type) == wo->wo_pid; in eligible_pid()
1066 eligible_child(struct wait_opts *wo, bool ptrace, struct task_struct *p) in eligible_child() argument
1068 if (!eligible_pid(wo, p)) in eligible_child()
1075 if (ptrace || (wo->wo_flags & __WALL)) in eligible_child()
1086 if ((p->exit_signal != SIGCHLD) ^ !!(wo->wo_flags & __WCLONE)) in eligible_child()
1098 static int wait_task_zombie(struct wait_opts *wo, struct task_struct *p) in wait_task_zombie() argument
1105 if (!likely(wo->wo_flags & WEXITED)) in wait_task_zombie()
1108 if (unlikely(wo->wo_flags & WNOWAIT)) { in wait_task_zombie()
1114 if (wo->wo_rusage) in wait_task_zombie()
1115 getrusage(p, RUSAGE_BOTH, wo->wo_rusage); in wait_task_zombie()
1190 if (wo->wo_rusage) in wait_task_zombie()
1191 getrusage(p, RUSAGE_BOTH, wo->wo_rusage); in wait_task_zombie()
1194 wo->wo_stat = status; in wait_task_zombie()
1212 infop = wo->wo_info; in wait_task_zombie()
1242 * @wo: wait options
1258 static int wait_task_stopped(struct wait_opts *wo, in wait_task_stopped() argument
1269 if (!ptrace && !(wo->wo_flags & WUNTRACED)) in wait_task_stopped()
1286 if (!unlikely(wo->wo_flags & WNOWAIT)) in wait_task_stopped()
1307 if (wo->wo_rusage) in wait_task_stopped()
1308 getrusage(p, RUSAGE_BOTH, wo->wo_rusage); in wait_task_stopped()
1311 if (likely(!(wo->wo_flags & WNOWAIT))) in wait_task_stopped()
1312 wo->wo_stat = (exit_code << 8) | 0x7f; in wait_task_stopped()
1314 infop = wo->wo_info; in wait_task_stopped()
1330 static int wait_task_continued(struct wait_opts *wo, struct task_struct *p) in wait_task_continued() argument
1336 if (!unlikely(wo->wo_flags & WCONTINUED)) in wait_task_continued()
1348 if (!unlikely(wo->wo_flags & WNOWAIT)) in wait_task_continued()
1357 if (wo->wo_rusage) in wait_task_continued()
1358 getrusage(p, RUSAGE_BOTH, wo->wo_rusage); in wait_task_continued()
1361 infop = wo->wo_info; in wait_task_continued()
1363 wo->wo_stat = 0xffff; in wait_task_continued()
1382 static int wait_consider_task(struct wait_opts *wo, int ptrace, in wait_consider_task() argument
1396 ret = eligible_child(wo, ptrace, p); in wait_consider_task()
1406 wo->notask_error = 0; in wait_consider_task()
1436 return wait_task_zombie(wo, p); in wait_consider_task()
1459 if (likely(!ptrace) || (wo->wo_flags & (WCONTINUED | WEXITED))) in wait_consider_task()
1460 wo->notask_error = 0; in wait_consider_task()
1466 wo->notask_error = 0; in wait_consider_task()
1473 ret = wait_task_stopped(wo, ptrace, p); in wait_consider_task()
1482 return wait_task_continued(wo, p); in wait_consider_task()
1494 static int do_wait_thread(struct wait_opts *wo, struct task_struct *tsk) in do_wait_thread() argument
1499 int ret = wait_consider_task(wo, 0, p); in do_wait_thread()
1508 static int ptrace_do_wait(struct wait_opts *wo, struct task_struct *tsk) in ptrace_do_wait() argument
1513 int ret = wait_consider_task(wo, 1, p); in ptrace_do_wait()
1525 struct wait_opts *wo = container_of(wait, struct wait_opts, in child_wait_callback() local
1529 if (!eligible_pid(wo, p)) in child_wait_callback()
1532 if ((wo->wo_flags & __WNOTHREAD) && wait->private != p->parent) in child_wait_callback()
1544 static bool is_effectively_child(struct wait_opts *wo, bool ptrace, in is_effectively_child() argument
1550 return current == parent || (!(wo->wo_flags & __WNOTHREAD) && in is_effectively_child()
1558 static int do_wait_pid(struct wait_opts *wo) in do_wait_pid() argument
1565 target = pid_task(wo->wo_pid, PIDTYPE_TGID); in do_wait_pid()
1566 if (target && is_effectively_child(wo, ptrace, target)) { in do_wait_pid()
1567 retval = wait_consider_task(wo, ptrace, target); in do_wait_pid()
1573 target = pid_task(wo->wo_pid, PIDTYPE_PID); in do_wait_pid()
1575 is_effectively_child(wo, ptrace, target)) { in do_wait_pid()
1576 retval = wait_consider_task(wo, ptrace, target); in do_wait_pid()
1584 static long do_wait(struct wait_opts *wo) in do_wait() argument
1588 trace_sched_process_wait(wo->wo_pid); in do_wait()
1590 init_waitqueue_func_entry(&wo->child_wait, child_wait_callback); in do_wait()
1591 wo->child_wait.private = current; in do_wait()
1592 add_wait_queue(¤t->signal->wait_chldexit, &wo->child_wait); in do_wait()
1600 wo->notask_error = -ECHILD; in do_wait()
1601 if ((wo->wo_type < PIDTYPE_MAX) && in do_wait()
1602 (!wo->wo_pid || !pid_has_task(wo->wo_pid, wo->wo_type))) in do_wait()
1608 if (wo->wo_type == PIDTYPE_PID) { in do_wait()
1609 retval = do_wait_pid(wo); in do_wait()
1616 retval = do_wait_thread(wo, tsk); in do_wait()
1620 retval = ptrace_do_wait(wo, tsk); in do_wait()
1624 if (wo->wo_flags & __WNOTHREAD) in do_wait()
1631 retval = wo->notask_error; in do_wait()
1632 if (!retval && !(wo->wo_flags & WNOHANG)) { in do_wait()
1641 remove_wait_queue(¤t->signal->wait_chldexit, &wo->child_wait); in do_wait()
1648 struct wait_opts wo; in kernel_waitid() local
1695 wo.wo_type = type; in kernel_waitid()
1696 wo.wo_pid = pid; in kernel_waitid()
1697 wo.wo_flags = options; in kernel_waitid()
1698 wo.wo_info = infop; in kernel_waitid()
1699 wo.wo_rusage = ru; in kernel_waitid()
1701 wo.wo_flags |= WNOHANG; in kernel_waitid()
1703 ret = do_wait(&wo); in kernel_waitid()
1747 struct wait_opts wo; in kernel_wait4() local
1773 wo.wo_type = type; in kernel_wait4()
1774 wo.wo_pid = pid; in kernel_wait4()
1775 wo.wo_flags = options | WEXITED; in kernel_wait4()
1776 wo.wo_info = NULL; in kernel_wait4()
1777 wo.wo_stat = 0; in kernel_wait4()
1778 wo.wo_rusage = ru; in kernel_wait4()
1779 ret = do_wait(&wo); in kernel_wait4()
1781 if (ret > 0 && stat_addr && put_user(wo.wo_stat, stat_addr)) in kernel_wait4()
1789 struct wait_opts wo = { in kernel_wait() local
1796 ret = do_wait(&wo); in kernel_wait()
1797 if (ret > 0 && wo.wo_stat) in kernel_wait()
1798 *stat = wo.wo_stat; in kernel_wait()
1799 put_pid(wo.wo_pid); in kernel_wait()