On Mon, May 01, 2017 at 08:33:50PM +0200, Michael Kerrisk (man-pages) wrote:
> Hi Mike,
>
> I've applied this, but have a question.
>
> On 05/01/2017 07:43 AM, Mike Rapoport wrote:
> > The features handshake is not quite convenient.
> > Elaborate about it in the BUGS section.
> >
> > Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
> > ---
> > man2/ioctl_userfaultfd.2 | 9 +++++++++
> > 1 file changed, 9 insertions(+)
> >
> > diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2
> > index e12b9de..50316de 100644
> > --- a/man2/ioctl_userfaultfd.2
> > +++ b/man2/ioctl_userfaultfd.2
> > @@ -650,6 +650,15 @@ operations are Linux-specific.
> > .SH EXAMPLE
> > See
> > .BR userfaultfd (2).
> > +.SH BUGS
> > +In order to detect available userfault features and
> > +enable certain subset of those features
>
> I changed "certain" to "some". ("certain subset" here also
> would sound like "some particular subset" of those features.)
> Okay?
Yes, sure.
> > +the usefault file descriptor must be closed after the first
> > +.BR UFFDIO_API
> > +operation that queries features availability and re-opened before
> > +the second
> > +.BR UFFDIO_API
> > +call that actually enables the desired features.
> > .SH SEE ALSO
> > .BR ioctl (2),
> > .BR mmap (2),
>
> Cheers,
>
> Michael
>
>
>
> --
> Michael Kerrisk
> Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
> Linux/UNIX System Programming Training: http://man7.org/training/
>
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