Re: [PATCH v2 3/4] perf record: enable runtime trace compression

[Alexey Budankov]

On 12.02.2019 16:09, Jiri Olsa wrote:
> On Mon, Feb 11, 2019 at 11:23:40PM +0300, Alexey Budankov wrote:
> 
> SNIP
> 
>> diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
>> index 239e9a13c2b7..980784b77fe2 100644
>> --- a/tools/perf/util/mmap.c
>> +++ b/tools/perf/util/mmap.c
>> @@ -156,6 +156,86 @@ void __weak auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp __mayb
>>  {
>>  }
>>  
>> +static ssize_t perf_mmap__capture(struct perf_mmap *md, int idx,
>> +			perf_mmap__compress_fn_t compress, void *where)
>> +{
>> +	u64 head = perf_mmap__read_head(md);
>> +	unsigned char *data = md->base + page_size;
>> +	unsigned long size, size0 = 0;
>> +	void *buf;
>> +	int rc = 0;
>> +	size_t mmap_len = perf_mmap__mmap_len(md);
> 
> again, this function seems like duplicate of perf_mmap__push,
> can't you just overload the push callback?

Answered related question in other mail.
Overloading could be an option.

Thanks,
Alexey

> 
> thanks,
> jirka
>