* [PATCH] userfaultfd.2: add EPERM error
@ 2019-12-18 6:13 Yang Xu
2020-01-06 6:16 ` Yang Xu
2020-01-21 21:05 ` Michael Kerrisk (man-pages)
0 siblings, 2 replies; 3+ messages in thread
From: Yang Xu @ 2019-12-18 6:13 UTC (permalink / raw)
To: mtk.manpages; +Cc: linux-man, Yang Xu
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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] userfaultfd.2: add EPERM error
2019-12-18 6:13 [PATCH] userfaultfd.2: add EPERM error Yang Xu
@ 2020-01-06 6:16 ` Yang Xu
2020-01-21 21:05 ` Michael Kerrisk (man-pages)
1 sibling, 0 replies; 3+ messages in thread
From: Yang Xu @ 2020-01-06 6:16 UTC (permalink / raw)
To: mtk.manpages; +Cc: linux-man
Hi
Ping.
> 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 ()
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] userfaultfd.2: add EPERM error
2019-12-18 6:13 [PATCH] userfaultfd.2: add EPERM error Yang Xu
2020-01-06 6:16 ` Yang Xu
@ 2020-01-21 21:05 ` Michael Kerrisk (man-pages)
1 sibling, 0 replies; 3+ messages in thread
From: Michael Kerrisk (man-pages) @ 2020-01-21 21:05 UTC (permalink / raw)
To: Yang Xu; +Cc: mtk.manpages, linux-man
On 12/18/19 7:13 AM, Yang Xu wrote:
> 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 ()
Hello Yang Xu,
Thanks. Patch applied (with some tweaks).
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
^ permalink raw reply [flat|nested] 3+ messages in thread
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