* [PATCH] [PATCH] namespaces.7: Document the /proc/[pid]/ns/pid_for_children file
@ 2017-05-18 15:05 Kirill Tkhai
[not found] ` <149511988876.22402.2393921521433842598.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Kirill Tkhai @ 2017-05-18 15:05 UTC (permalink / raw)
To: linux-api-u79uwXL29TY76Z2rM5mHXA, ktkhai-5HdwGun5lf+gSpxsJD1C4w,
keescook-F7+t8E8rja9g9hUCZPvPmw,
mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w
Corresponding kernel commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eaa0d190bfe1ed891b814a52712dcd852554cb08
Signed-off-by: Kirill Tkhai <ktkhai-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
---
man7/namespaces.7 | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/man7/namespaces.7 b/man7/namespaces.7
index 09f031347..67ea0ced0 100644
--- a/man7/namespaces.7
+++ b/man7/namespaces.7
@@ -125,6 +125,7 @@ lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 ipc \-> ipc:[4026531839]
lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 mnt \-> mnt:[4026531840]
lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 net \-> net:[4026531969]
lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 pid \-> pid:[4026531836]
+lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 pid_for_children \-> pid:[4026531834]
lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 user \-> user:[4026531837]
lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 uts \-> uts:[4026531838]
.fi
@@ -186,7 +187,14 @@ This file is a handle for the network namespace of the process.
.TP
.IR /proc/[pid]/ns/pid " (since Linux 3.8)"
.\" commit 57e8391d327609cbf12d843259c968b9e5c1838f
-This file is a handle for the PID namespace of the process.
+This file is a handle for the PID namespace of the process. It's
+permanent during the whole process life.
+.TP
+.IR /proc/[pid]/ns/pid_for_children " (since Linux 4.12)"
+.\" commit eaa0d190bfe1ed891b814a52712dcd852554cb08
+This file is a handle for the PID namespace of a next born child
+of the process. It's changed after unshare(2) and via setns(2),
+so the file may differ from /proc/[pid]/ns/pid.
.TP
.IR /proc/[pid]/ns/user " (since Linux 3.8)"
.\" commit cde1975bc242f3e1072bde623ef378e547b73f91
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] [PATCH] namespaces.7: Document the /proc/[pid]/ns/pid_for_children file
[not found] ` <149511988876.22402.2393921521433842598.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
@ 2017-05-23 19:43 ` Michael Kerrisk (man-pages)
0 siblings, 0 replies; 2+ messages in thread
From: Michael Kerrisk (man-pages) @ 2017-05-23 19:43 UTC (permalink / raw)
To: Kirill Tkhai, linux-api-u79uwXL29TY76Z2rM5mHXA,
keescook-F7+t8E8rja9g9hUCZPvPmw
Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w
Hello Kirill,
On 05/18/2017 05:05 PM, Kirill Tkhai wrote:
> Corresponding kernel commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eaa0d190bfe1ed891b814a52712dcd852554cb08
>
> Signed-off-by: Kirill Tkhai <ktkhai-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
Thanks you very much for the patch! Applied (with some tweaks; see the version in Git).
Cheers,
Michael
> ---
> man7/namespaces.7 | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/man7/namespaces.7 b/man7/namespaces.7
> index 09f031347..67ea0ced0 100644
> --- a/man7/namespaces.7
> +++ b/man7/namespaces.7
> @@ -125,6 +125,7 @@ lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 ipc \-> ipc:[4026531839]
> lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 mnt \-> mnt:[4026531840]
> lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 net \-> net:[4026531969]
> lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 pid \-> pid:[4026531836]
> +lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 pid_for_children \-> pid:[4026531834]
> lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 user \-> user:[4026531837]
> lrwxrwxrwx. 1 mtk mtk 0 Apr 28 12:46 uts \-> uts:[4026531838]
> .fi
> @@ -186,7 +187,14 @@ This file is a handle for the network namespace of the process.
> .TP
> .IR /proc/[pid]/ns/pid " (since Linux 3.8)"
> .\" commit 57e8391d327609cbf12d843259c968b9e5c1838f
> -This file is a handle for the PID namespace of the process.
> +This file is a handle for the PID namespace of the process. It's
> +permanent during the whole process life.
> +.TP
> +.IR /proc/[pid]/ns/pid_for_children " (since Linux 4.12)"
> +.\" commit eaa0d190bfe1ed891b814a52712dcd852554cb08
> +This file is a handle for the PID namespace of a next born child
> +of the process. It's changed after unshare(2) and via setns(2),
> +so the file may differ from /proc/[pid]/ns/pid.
> .TP
> .IR /proc/[pid]/ns/user " (since Linux 3.8)"
> .\" commit cde1975bc242f3e1072bde623ef378e547b73f91
>
>
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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2017-05-18 15:05 [PATCH] [PATCH] namespaces.7: Document the /proc/[pid]/ns/pid_for_children file Kirill Tkhai
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2017-05-23 19:43 ` Michael Kerrisk (man-pages)
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