On Mon, Oct 08, 2018 at 03:24:31PM +0300, Alexey Budankov wrote: > Hi, > > On 08.10.2018 13:52, Jiri Olsa wrote: > > On Mon, Oct 08, 2018 at 09:17:11AM +0300, Alexey Budankov wrote: > <SNIP> > >> +#ifdef HAVE_AIO_SUPPORT > >> + off = lseek(trace_fd, 0, SEEK_CUR); > >> +#endif > > > > I'm still little puzzled why we need to do this, > > when the aio write takes the offset value, but > > pwrite() syscall [1] which is the base for aio_write() doesn't > advance file pos value so it requires to be calculated and > updated by callers of aio_write() API.
ok, so aio_write does not need the offset to be updated, who needs it then? jirka
