Re: [dpdk-dev] [PATCH v2] mempool: Free memzone if mempool populate phys fails

[Olivier Matz <olivier.matz@6wind.com>]

Hi Hemant,

On 11/11/2016 04:47 PM, Hemant Agrawal wrote:
> From: Nipun Gupta <nipun.gupta@nxp.com>
> 
> This patch fixes the issue of memzone not being freed incase the
> rte_mempool_populate_phys fails in the rte_mempool_populate_default
> 
> This issue was identified when testing with OVS ~2.6
> - configure the system with low memory (e.g. < 500 MB)
> - add bridge and dpdk interfaces
> - delete brigde
> - keep on repeating the above sequence.
> 
> Fixes: d1d914ebbc25 ("mempool: allocate in several memory chunks by default")
> 
> Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
> ---
>  lib/librte_mempool/rte_mempool.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
> index e94e56f..aa513b9 100644
> --- a/lib/librte_mempool/rte_mempool.c
> +++ b/lib/librte_mempool/rte_mempool.c
> @@ -578,8 +578,10 @@ rte_mempool_populate_default(struct rte_mempool *mp)
>  				mz->len, pg_sz,
>  				rte_mempool_memchunk_mz_free,
>  				(void *)(uintptr_t)mz);
> -		if (ret < 0)
> +		if (ret < 0) {
> +			rte_memzone_free(mz);
>  			goto fail;
> +		}
>  	}
>  
>  	return mp->size;
> 

Acked-by: Olivier Matz <olivier.matz@6wind.com>


Thanks
Olivier