linux-kernel - Re: [PATCH 1/4] userfaultfd.2: Add UFFD_FEATURE_THREAD

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Message-ID: <b0583d47-43ba-6077-9d93-074cd34993f3@gmail.com>
Date:   Thu, 4 Mar 2021 10:22:18 +0100
From:   "Alejandro Colomar (man-pages)" <alx.manpages@...il.com>
To:     Peter Xu <peterx@...hat.com>
Cc:     Mike Rapoport <rppt@...ux.vnet.ibm.com>,
        Nadav Amit <nadav.amit@...il.com>,
        linux-kernel@...r.kernel.org,
        Linux MM Mailing List <linux-mm@...ck.org>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        linux-man@...r.kernel.org
Subject: Re: [PATCH 1/4] userfaultfd.2: Add UFFD_FEATURE_THREAD_ID docs

Hello Peter,

On 3/4/21 2:59 AM, Peter Xu wrote:
> UFFD_FEATURE_THREAD_ID is supported since Linux 4.14.
> 
> Signed-off-by: Peter Xu <peterx@...hat.com>
> ---
>   man2/userfaultfd.2 | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
> 
> diff --git a/man2/userfaultfd.2 b/man2/userfaultfd.2
> index e7dc9f813..2d14effc6 100644
> --- a/man2/userfaultfd.2
> +++ b/man2/userfaultfd.2
> @@ -77,6 +77,12 @@ When the last file descriptor referring to a userfaultfd object is closed,
>   all memory ranges that were registered with the object are unregistered
>   and unread events are flushed.
>   .\"
> +.PP
> +Since Linux 4.14, userfaultfd page fault message can selectively embed fault
> +thread ID information into the fault message.  One needs to enable this feature
> +explicitly using the
> +.BR UFFD_FEATURE_THREAD_ID

This should use [.B] and not [.BR].
.BR is for alternate Bold and Roman.
.B is for bold.

(There are more appearances of this in the other patches.)

Thanks,

Alex

-- 
Alejandro Colomar
Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/
http://www.alejandro-colomar.es/