io_uring/waitid.c
289
ret = kernel_waitid_prepare(&iwa->wo, iw->which, iw->upid, &iw->info,
kernel/exit.c
1835
ret = kernel_waitid_prepare(&wo, which, upid, infop, options, ru);
kernel/exit.h
27
int kernel_waitid_prepare(struct wait_opts *wo, int which, pid_t upid,
