static
int do_lttng_statedump(struct lttng_session *session)
{
int cpu;
trace_lttng_statedump_start(session);
lttng_enumerate_process_states(session);
lttng_enumerate_file_descriptors(session);
/* FIXME lttng_enumerate_vm_maps(session); */
lttng_list_interrupts(session);
lttng_enumerate_network_ip_interface(session);
/* TODO lttng_dump_idt_table(session); */
/* TODO lttng_dump_softirq_vec(session); */
/* TODO lttng_list_modules(session); */
/* TODO lttng_dump_swap_files(session); */
/*
* Fire off a work queue on each CPU. Their sole purpose in life
* is to guarantee that each CPU has been in a state where is was in
* syscall mode (i.e. not in a trap, an IRQ or a soft IRQ).
*/
get_online_cpus();
atomic_set(&kernel_threads_to_run, num_online_cpus());
for_each_online_cpu(cpu) {
INIT_DELAYED_WORK(&cpu_work[cpu], lttng_statedump_work_func);
schedule_delayed_work_on(cpu, &cpu_work[cpu], 0);
}
/* Wait for all threads to run */
__wait_event(statedump_wq, (atomic_read(&kernel_threads_to_run) == 0));
put_online_cpus();
/* Our work is done */
trace_lttng_statedump_end(session);
return 0;
}
void wait_event(void)
{
struct buffered_status *status = store_status();
status->key = IKEY_UNKNOWN;
status->unicode = 0;
status->mouse_moved = 0;
status->mouse_button = 0;
__wait_event();
update_autorepeat();
}
