Function handle_free_request

dpdk/lib/eal/common/malloc_mp.c:178–214

}

static int
handle_free_request(const struct malloc_mp_req *m)
{
	const struct rte_memseg_list *msl;
	void *start, *end;
	size_t len;

	len = m->free_req.len;
	start = m->free_req.addr;
	end = RTE_PTR_ADD(start, len - 1);

	/* check if the requested memory actually exists */
	msl = rte_mem_virt2memseg_list(start);
	if (msl == NULL) {
		RTE_LOG(ERR, EAL, "Requested to free unknown memory\n");
		return -1;
	}

	/* check if end is within the same memory region */
	if (rte_mem_virt2memseg_list(end) != msl) {
		RTE_LOG(ERR, EAL, "Requested to free memory spanning multiple regions\n");
		return -1;
	}

	/* we're supposed to only free memory that's not external */
	if (msl->external) {
		RTE_LOG(ERR, EAL, "Requested to free external memory\n");
		return -1;
	}

	/* now that we've validated the request, announce it */
	eal_memalloc_mem_event_notify(RTE_MEM_EVENT_FREE,
			m->free_req.addr, m->free_req.len);

	/* now, do the actual freeing */
	return malloc_heap_free_pages(m->free_req.addr, m->free_req.len);
}

static int
handle_alloc_request(const struct malloc_mp_req *m,