arch/s390/include/asm/diag.h

176

__u8 upid;

include/linux/pid.h

74

struct upid numbers[];

io_uring/waitid.c

27

pid_t upid;

io_uring/waitid.c

274

iw->upid = READ_ONCE(sqe->fd);

io_uring/waitid.c

289

ret = kernel_waitid_prepare(&iwa->wo, iw->which, iw->upid, &iw->info,

kernel/exit.c

1769

int kernel_waitid_prepare(struct wait_opts *wo, int which, pid_t upid,

kernel/exit.c

1789

if (upid <= 0)

kernel/exit.c

1792

pid = find_get_pid(upid);

kernel/exit.c

1796

if (upid < 0)

kernel/exit.c

1799

if (upid)

kernel/exit.c

1800

pid = find_get_pid(upid);

kernel/exit.c

1806

if (upid < 0)

kernel/exit.c

1809

pid = pidfd_get_pid(upid, &f_flags);

kernel/exit.c

1829

static long kernel_waitid(int which, pid_t upid, struct waitid_info *infop,

kernel/exit.c

1835

ret = kernel_waitid_prepare(&wo, which, upid, infop, options, ru);

kernel/exit.c

1847

SYSCALL_DEFINE5(waitid, int, which, pid_t, upid, struct siginfo __user *,

kernel/exit.c

1852

long err = kernel_waitid(which, upid, &info, options, ru ? &r : NULL);

kernel/exit.c

1880

long kernel_wait4(pid_t upid, int __user *stat_addr, int options,

kernel/exit.c

1893

if (upid == INT_MIN)

kernel/exit.c

1896

if (upid == -1)

kernel/exit.c

1898

else if (upid < 0) {

kernel/exit.c

1900

pid = find_get_pid(-upid);

kernel/exit.c

1901

} else if (upid == 0) {

kernel/exit.c

1906

pid = find_get_pid(upid);

kernel/exit.c

1939

SYSCALL_DEFINE4(wait4, pid_t, upid, int __user *, stat_addr,

kernel/exit.c

1943

long err = kernel_wait4(upid, stat_addr, options, ru ? &r : NULL);

kernel/exit.h

27

int kernel_waitid_prepare(struct wait_opts *wo, int which, pid_t upid,

kernel/pid.c

122

struct upid *upid = pid->numbers + i;

kernel/pid.c

123

struct pid_namespace *ns = upid->ns;

kernel/pid.c

139

idr_remove(&ns->idr, upid->nr);

kernel/pid.c

168

struct upid *upid;

kernel/pid.c

329

for (upid = pid->numbers + ns->level; upid >= pid->numbers; --upid) {

kernel/pid.c

331

idr_replace(&upid->ns->idr, pid, upid->nr);

kernel/pid.c

332

upid->ns->pid_allocated++;

kernel/pid.c

348

upid = pid->numbers + i;

kernel/pid.c

349

idr_remove(&upid->ns->idr, upid->nr);

kernel/pid.c

542

struct upid *upid;

kernel/pid.c

546

upid = &pid->numbers[ns->level];

kernel/pid.c

547

if (upid->ns == ns)

kernel/pid.c

548

nr = upid->nr;

kernel/time/posix-cpu-timers.c

60

const pid_t upid = CPUCLOCK_PID(clock);

kernel/time/posix-cpu-timers.c

70

if (upid == 0)

kernel/time/posix-cpu-timers.c

73

pid = find_vpid(upid);