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@xxxxxxxxxx> --- 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/
