From: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
To: <mtk.manpages@gmail.com>
Cc: <linux-man@vger.kernel.org>, Yang Xu <xuyang2018.jy@cn.fujitsu.com>
Subject: [PATCH] userfaultfd.2: add EPERM error
Date: Wed, 18 Dec 2019 14:13:07 +0800 [thread overview]
Message-ID: <1576649587-20008-1-git-send-email-xuyang2018.jy@cn.fujitsu.com> (raw)
Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
---
man2/userfaultfd.2 | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/man2/userfaultfd.2 b/man2/userfaultfd.2
index 8d0a66ed9..2b432f043 100644
--- a/man2/userfaultfd.2
+++ b/man2/userfaultfd.2
@@ -440,6 +440,11 @@ reached.
.TP
.B ENOMEM
Insufficient kernel memory was available.
+.TP
+.B EPERM
+Unprivileged user(without SYS_CAP_PTRACE capability) uses this call when
+set unprivileged_userfaultfd to 0. It was introduced since Linux 5.2.
+.\" cefdca0a86be517bc390fc4541e3674b8e7803b0
.SH VERSIONS
The
.BR userfaultfd ()
--
2.18.0
next reply other threads:[~2019-12-18 6:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 6:13 Yang Xu [this message]
2020-01-06 6:16 ` [PATCH] userfaultfd.2: add EPERM error Yang Xu
2020-01-21 21:05 ` Michael Kerrisk (man-pages)
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