On Wed, Jun 28, 2017 at 04:11:12PM +0200, Andrea Arcangeli wrote: > On Wed, Jun 28, 2017 at 03:30:03PM +0300, Mike Rapoport wrote: > > On a side note, as mentioned some time ago, if UFFDIO_API returns > -EINVAL the uffdio_api userland structure gets clobbered with zeros by > the kernel purely for robustness. So the "features" field is to be > considered a meaningful output, only if UFFDIO_API ioctl succeeds and > returns 0. That reminded me that there was a bunch of comments from Andrea a while ago [1]... Michael, can you please review that thread? If you need any help from my side, don't hesitate to ping me. > Thanks, > Andrea > [1] https://lkml.org/lkml/2017/5/3/594 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html