From: Peter Xu <peterx@redhat.com>
To: linux-man@vger.kernel.org
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>,
Nadav Amit <nadav.amit@gmail.com>,
linux-kernel@vger.kernel.org,
Linux MM Mailing List <linux-mm@kvack.org>,
peterx@redhat.com, Axel Rasmussen <axelrasmussen@google.com>,
Alejandro Colomar <alx.manpages@gmail.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Michael Kerrisk <mtk.manpages@gmail.com>
Subject: [PATCH 3/4] ioctl_userfaultfd.2: Add UFFD_FEATURE_THREAD_ID docs
Date: Wed, 3 Mar 2021 20:59:46 -0500 [thread overview]
Message-ID: <20210304015947.517713-4-peterx@redhat.com> (raw)
In-Reply-To: <20210304015947.517713-1-peterx@redhat.com>
UFFD_FEATURE_THREAD_ID is supported in Linux 4.14.
Signed-off-by: Peter Xu <peterx@redhat.com>
---
man2/ioctl_userfaultfd.2 | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2
index 47ae5f473..1965d1932 100644
--- a/man2/ioctl_userfaultfd.2
+++ b/man2/ioctl_userfaultfd.2
@@ -208,6 +208,10 @@ 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.
+.BR UFFD_FEATURE_THREAD_ID " (since Linux 4.14)"
+If this feature bit is set,
+.I uffd_msg.pagefault.feat.ptid
+Will be set
.PP
The returned
.I ioctls
--
2.26.2
next prev parent reply other threads:[~2021-03-04 2:02 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 1:59 [PATCH 0/4] man2: udpate mm/userfaultfd manpages to latest Peter Xu
2021-03-04 1:59 ` [PATCH 1/4] userfaultfd.2: Add UFFD_FEATURE_THREAD_ID docs Peter Xu
2021-03-04 6:38 ` Mike Rapoport
2021-03-04 15:53 ` Peter Xu
2021-03-04 9:22 ` Alejandro Colomar (man-pages)
2021-03-04 15:50 ` Peter Xu
2021-03-04 18:13 ` Alejandro Colomar (man-pages)
2021-03-04 1:59 ` [PATCH 2/4] userfaultfd.2: Add write-protect mode Peter Xu
2021-03-04 6:46 ` Mike Rapoport
2021-03-04 16:02 ` Peter Xu
2021-03-04 1:59 ` Peter Xu [this message]
2021-03-04 1:59 ` [PATCH 4/4] ioctl_userfaultfd.2: Add write-protect mode docs Peter Xu
2021-03-04 16:12 ` Peter Xu
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