[dpdk-dev] [PATCH 1/2] mempool: fix comments for mempool create functions

Ferruh Yigit ferruh.yigit at intel.com
Wed Sep 21 18:16:37 CEST 2016


On 9/21/2016 4:04 PM, Olivier Matz wrote:
> Hi Ferruh,
> 
> Thanks for checking the API documentation.
> Please see few comments below.
> 
> On 09/20/2016 06:17 PM, Ferruh Yigit wrote:
>> Fixes: 85226f9c526b ("mempool: introduce a function to create an empty pool")
>> Fixes: d1d914ebbc25 ("mempool: allocate in several memory chunks by default")
>>
>> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
>> ---
>>  lib/librte_mempool/rte_mempool.c | 4 +---
>>  lib/librte_mempool/rte_mempool.h | 4 +---
>>  2 files changed, 2 insertions(+), 6 deletions(-)
>>
>> diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
>> index df8b68c..e96d14f 100644
>> --- a/lib/librte_mempool/rte_mempool.c
>> +++ b/lib/librte_mempool/rte_mempool.c
>> @@ -908,9 +908,7 @@ rte_mempool_create(const char *name, unsigned n, unsigned elt_size,
>>  /*
>>   * Create the mempool over already allocated chunk of memory.
>>   * That external memory buffer can consists of physically disjoint pages.
>> - * Setting vaddr to NULL, makes mempool to fallback to original behaviour
>> - * and allocate space for mempool and it's elements as one big chunk of
>> - * physically continuos memory.
>> + * Setting vaddr to NULL, makes mempool to fallback to original behaviour.
> 
> I would replace "original behaviour" by "rte_mempool_create() behaviour".
> 
>>   */
>>  struct rte_mempool *
>>  rte_mempool_xmem_create(const char *name, unsigned n, unsigned elt_size,
>> diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h
>> index 0243f9e..6fc331a 100644
>> --- a/lib/librte_mempool/rte_mempool.h
>> +++ b/lib/librte_mempool/rte_mempool.h
>> @@ -591,8 +591,6 @@ typedef void (rte_mempool_ctor_t)(struct rte_mempool *, void *);
>>   *
>>   * This function uses ``memzone_reserve()`` to allocate memory. The
>>   * pool contains n elements of elt_size. Its size is set to n.
>> - * All elements of the mempool are allocated together with the mempool header,
>> - * in one physically continuous chunk of memory.
> 
> While there, maybe we could replace ``memzone_reserve()`` by
> ``rte_memzone_reserve()``.
> 
>>   *
>>   * @param name
>>   *   The name of the mempool.
>> @@ -748,7 +746,7 @@ rte_mempool_xmem_create(const char *name, unsigned n, unsigned elt_size,
>>   *
>>   * The mempool is allocated and initialized, but it is not populated: no
>>   * memory is allocated for the mempool elements. The user has to call
>> - * rte_mempool_populate_*() or to add memory chunks to the pool. Once
>> + * rte_mempool_populate_*() to add memory chunks to the pool. Once
>>   * populated, the user may also want to initialize each object with
>>   * rte_mempool_obj_iter().
>>   *
>>


Thanks for the comments, I will send a new version of the patch with
suggested fixes.

Thanks,
ferruh


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