Re: [PATCH v2] mempool: improve cache search

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

On 07/03/2015 03:32 PM, Olivier MATZ wrote:
> 
> 
> On 07/01/2015 11:03 AM, Zoltan Kiss wrote:
>> The current way has a few problems:
>>
>> - if cache->len < n, we copy our elements into the cache first, then
>>   into obj_table, that's unnecessary
>> - if n >= cache_size (or the backfill fails), and we can't fulfil the
>>   request from the ring alone, we don't try to combine with the cache
>> - if refill fails, we don't return anything, even if the ring has enough
>>   for our request
>>
>> This patch rewrites it severely:
>> - at the first part of the function we only try the cache if cache->len < n
>> - otherwise take our elements straight from the ring
>> - if that fails but we have something in the cache, try to combine them
>> - the refill happens at the end, and its failure doesn't modify our return
>>   value
>>
>> Signed-off-by: Zoltan Kiss <zoltan.kiss@linaro.org>
> 
> 
> Acked-by: Olivier Matz <olivier.matz@6wind.com>
> 

Please ignore, sorry, I missed Konstantin's relevant comment.