On Wed, Mar 03, 2021 at 08:59:47PM -0500, Peter Xu wrote: > Userfaultfd write-protect mode is supported starting from Linux 5.7. > > Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> > --- > man2/ioctl_userfaultfd.2 | 74 +++++++++++++++++++++++++++++++++++++--- > 1 file changed, 70 insertions(+), 4 deletions(-) > > diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2 > index 1965d1932..3feb888a8 100644 > --- a/man2/ioctl_userfaultfd.2 > +++ b/man2/ioctl_userfaultfd.2 > @@ -208,10 +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 > +will be set to the faulted thread ID for each page fault message. These two changes should belong to the previous patch - will get them fixed too. -- Peter Xu
