Re: [PATCH 4/5] ioctl_userfaultfd.2: Add UFFD_FEATURE_THREAD_ID docs

["Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>]

Hello Alex, Peter.

On 4/5/21 3:13 PM, Alejandro Colomar wrote:
> From: Peter Xu <peterx@redhat.com>
> 
> UFFD_FEATURE_THREAD_ID is supported in Linux 4.14.
> 
> Acked-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> Signed-off-by: Peter Xu <peterx@redhat.com>
> Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>

Patch applied. 

Thanks,

Michael

> ---
>  man2/ioctl_userfaultfd.2 | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2
> index 9120bdf40..014c0b5c1 100644
> --- a/man2/ioctl_userfaultfd.2
> +++ b/man2/ioctl_userfaultfd.2
> @@ -208,6 +208,11 @@ signal will be sent to the faulting process.
>  Applications using this
>  feature will not require the use of a userfaultfd monitor for processing
>  memory accesses to the regions registered with userfaultfd.
> +.TP
> +.BR UFFD_FEATURE_THREAD_ID " (since Linux 4.14)"
> +If this feature bit is set,
> +.I uffd_msg.pagefault.feat.ptid
> +will be set to the faulted thread ID for each page fault message.
>  .PP
>  The returned
>  .I ioctls
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/