[dpdk-dev] [PATCH v1] service: fix memory leak by rte_service_init

[Van Haaren, Harry]

> From: Varghese, Vipin
> Sent: Sunday, December 31, 2017 2:46 PM
> To: dev at dpdk.org; Van Haaren, Harry <harry.van.haaren at intel.com>
> Cc: Jain, Deepak K <deepak.k.jain at intel.com>; Varghese, Vipin
> <vipin.varghese at intel.com>
> Subject: [PATCH v1] service: fix memory leak by rte_service_init
> 
> This patch fixes the memory leak created by rte_service_init, when
> run from secondary application. Running secondary application which
> shares the huge page memory from primary multiple times causes memory
> to be initialized but not free when application exit.
> 
> The rte_service_deinit check if the service is initialized. If yes, it
> frees up rte_services & lcore_states. The API has to be called at end of
> application run.
> 
> Signed-off-by: Vipin Varghese <vipin.varghese at intel.com>

<snip>

> +++ b/lib/librte_eal/common/rte_service.c
> @@ -98,6 +98,20 @@ struct core_state {
>  static struct core_state *lcore_states;
>  static uint32_t rte_service_library_initialized;
> 
> +void rte_service_deinit(void)
> +{
> +	if (rte_service_library_initialized) {
> +		if (rte_services)
> +			rte_free(rte_services);
> +		if (lcore_states)
> +			rte_free(lcore_states);
> +
> +		rte_service_library_initialized = 0;
> +	}
> +	return;
> +}

No return required from void functions

> +
> +
>  int32_t rte_service_init(void)
>  {
>  	if (rte_service_library_initialized) {
> diff --git a/lib/librte_eal/rte_eal_version.map
> b/lib/librte_eal/rte_eal_version.map
> index f4f46c1..0f14409 100644
> --- a/lib/librte_eal/rte_eal_version.map
> +++ b/lib/librte_eal/rte_eal_version.map
> @@ -234,5 +234,6 @@ EXPERIMENTAL {
>  	rte_service_set_runstate_mapped_check;
>  	rte_service_set_stats_enable;
>  	rte_service_start_with_defaults;
> +	rte_service_deinit;

Alphabetical ordering in the .map files (vim has a nice feature; visual select service functions  then  :sort )

With above changes;
Acked-by: Harry van Haaren <harry.van.haaren at intel.com>