#include "lttng-events.h"
#include "wrapper/irqdesc.h"
+#include "wrapper/spinlock.h"
#ifdef CONFIG_GENERIC_HARDIRQS
#include <linux/irq.h>
return 0;
}
+#if 0
+/*
+ * FIXME: we cannot take a mmap_sem while in a RCU read-side critical section
+ * (scheduling in atomic). Normally, the tasklist lock protects this kind of
+ * iteration, but it is not exported to modules.
+ */
static
void lttng_enumerate_task_vm_maps(struct lttng_session *session,
struct task_struct *p)
rcu_read_unlock();
return 0;
}
+#endif
#ifdef CONFIG_GENERIC_HARDIRQS
irq_desc_get_chip(desc)->name ? : "unnamed_irq_chip";
local_irq_save(flags);
- raw_spin_lock(&desc->lock);
+ wrapper_desc_spin_lock(&desc->lock);
for (action = desc->action; action; action = action->next) {
trace_lttng_statedump_interrupt(session,
irq, irq_chip_name, action);
}
- raw_spin_unlock(&desc->lock);
+ wrapper_desc_spin_unlock(&desc->lock);
local_irq_restore(flags);
}
#undef irq_to_desc
}
#endif
+static
+void lttng_statedump_process_ns(struct lttng_session *session,
+ struct task_struct *p,
+ enum lttng_thread_type type,
+ enum lttng_execution_mode mode,
+ enum lttng_execution_submode submode,
+ enum lttng_process_status status)
+{
+ struct nsproxy *proxy;
+ struct pid_namespace *pid_ns;
+
+ rcu_read_lock();
+ proxy = task_nsproxy(p);
+ if (proxy) {
+ pid_ns = proxy->pid_ns;
+ do {
+ trace_lttng_statedump_process_state(session,
+ p, type, mode, submode, status, pid_ns);
+ pid_ns = pid_ns->parent;
+ } while (pid_ns);
+ } else {
+ trace_lttng_statedump_process_state(session,
+ p, type, mode, submode, status, NULL);
+ }
+ rcu_read_unlock();
+}
+
static
int lttng_enumerate_process_states(struct lttng_session *session)
{
type = LTTNG_USER_THREAD;
else
type = LTTNG_KERNEL_THREAD;
- trace_lttng_statedump_process_state(session,
+ lttng_statedump_process_ns(session,
p, type, mode, submode, status);
task_unlock(p);
} while_each_thread(g, p);
trace_lttng_statedump_start(session);
lttng_enumerate_process_states(session);
lttng_enumerate_file_descriptors(session);
- lttng_enumerate_vm_maps(session);
+ /* FIXME lttng_enumerate_vm_maps(session); */
lttng_list_interrupts(session);
lttng_enumerate_network_ip_interface(session);