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?
> +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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