Hello Alex, Peter. On 4/5/21 3:13 PM, Alejandro Colomar wrote: > From: Peter Xu <peterx@xxxxxxxxxx> > > UFFD_FEATURE_THREAD_ID is supported in Linux 4.14. > > Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> > Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> 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/
