C++ (Cpp) trace_seq_reserve Examples

Example #1

File: kmemtrace.c Project: 12rafael/jellytimekernel

static enum print_line_t
kmemtrace_print_alloc_user(struct trace_iterator *iter, int flags,
			   struct trace_event *event)
{
	struct trace_seq *s = &iter->seq;
	struct kmemtrace_alloc_entry *entry;
	struct kmemtrace_user_event *ev;
	struct kmemtrace_user_event_alloc *ev_alloc;

	trace_assign_type(entry, iter->ent);

	ev = trace_seq_reserve(s, sizeof(*ev));
	if (!ev)
		return TRACE_TYPE_PARTIAL_LINE;

	ev->event_id		= KMEMTRACE_USER_ALLOC;
	ev->type_id		= entry->type_id;
	ev->event_size		= sizeof(*ev) + sizeof(*ev_alloc);
	ev->cpu			= iter->cpu;
	ev->timestamp		= iter->ts;
	ev->call_site		= entry->call_site;
	ev->ptr			= (unsigned long)entry->ptr;

	ev_alloc = trace_seq_reserve(s, sizeof(*ev_alloc));
	if (!ev_alloc)
		return TRACE_TYPE_PARTIAL_LINE;

	ev_alloc->bytes_req	= entry->bytes_req;
	ev_alloc->bytes_alloc	= entry->bytes_alloc;
	ev_alloc->gfp_flags	= entry->gfp_flags;
	ev_alloc->node		= entry->node;

	return TRACE_TYPE_HANDLED;
}

Example #2

File: kmemtrace.c Project: antonywcl/AR-5315u_PLD

static enum print_line_t
kmemtrace_print_free_user(struct trace_iterator *iter,
			  struct kmemtrace_free_entry *entry)
{
	struct trace_seq *s = &iter->seq;
	struct kmemtrace_user_event *ev;

	ev = trace_seq_reserve(s, sizeof(*ev));
	if (!ev)
		return TRACE_TYPE_PARTIAL_LINE;

	ev->event_id		= KMEMTRACE_USER_FREE;
	ev->type_id		= entry->type_id;
	ev->event_size		= sizeof(*ev);
	ev->cpu			= iter->cpu;
	ev->timestamp		= iter->ts;
	ev->call_site		= entry->call_site;
	ev->ptr			= (unsigned long)entry->ptr;

	return TRACE_TYPE_HANDLED;
}