[dpdk-dev] [PATCH] memzone: fix memzone size on reserving biggest memzone

[Ananyev, Konstantin]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Anatoly Burakov
> Sent: Thursday, May 3, 2018 5:01 PM
> To: dev at dpdk.org
> Cc: stable at dpdk.org
> Subject: [dpdk-dev] [PATCH] memzone: fix memzone size on reserving biggest memzone
> 
> Size of malloc heap elements include overhead, which sould not
> be counted as part of memzone.
> 
> Fixes: fafcc11985a2 ("mem: rework memzone to be allocated by malloc")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
> ---

Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>

>  lib/librte_eal/common/eal_common_memzone.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_eal/common/eal_common_memzone.c b/lib/librte_eal/common/eal_common_memzone.c
> index bce3321..0595b3a 100644
> --- a/lib/librte_eal/common/eal_common_memzone.c
> +++ b/lib/librte_eal/common/eal_common_memzone.c
> @@ -213,7 +213,8 @@ memzone_reserve_aligned_thread_unsafe(const char *name, size_t len,
>  	snprintf(mz->name, sizeof(mz->name), "%s", name);
>  	mz->iova = rte_malloc_virt2iova(mz_addr);
>  	mz->addr = mz_addr;
> -	mz->len = (requested_len == 0 ? elem->size : requested_len);
> +	mz->len = (requested_len == 0 ?
> +			(elem->size - MALLOC_ELEM_OVERHEAD) : requested_len);
>  	mz->hugepage_sz = elem->msl->page_sz;
>  	mz->socket_id = elem->msl->socket_id;
>  	mz->flags = 0;
> --
> 2.7.4