On 13.03.2019 17:36, Jiri Olsa wrote:
> On Tue, Mar 12, 2019 at 08:30:13AM +0300, Alexey Budankov wrote:
>
> SNIP
>
>> -
>> - md->prev = head;
>> - perf_mmap__consume(md);
>> -
>> - rc = push(to, &md->aio.cblocks[idx], md->aio.data[idx], size0 + size,
>> *off);
>> - if (!rc) {
>> - *off += size0 + size;
>> - } else {
>> - /*
>> - * Decrement md->refcount back if aio write
>> - * operation failed to start.
>> - */
>> - perf_mmap__put(md);
>> - }
>> -
>> - return rc;
>> -}
>> #else /* !HAVE_AIO_SUPPORT */
>> static int perf_mmap__aio_enabled(struct perf_mmap *map __maybe_unused)
>> {
>> @@ -566,7 +492,7 @@ int perf_mmap__push(struct perf_mmap *md, void *to,
>>
>> rc = perf_mmap__read_init(md);
>> if (rc < 0)
>> - return (rc == -EAGAIN) ? 0 : -1;
>> + return (rc == -EAGAIN) ? 1 : -1;
>
> hum, should this be in part of this one?
>
> perf record: implement -f,--mmap-flush=<threshold> option
It affects the both serial and AIO but currently is only used
in AIO flow. That is why it is placed here.
~Alexey
>
>
> jirka
>
