Re: [PATCH] [PATCH] namespaces.7: Document the /proc/[pid]/ns/pid_for_children file
From: Michael Kerrisk (man-pages) <hidden>
Date: 2017-05-23 19:43:51
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 <redacted>
Thanks you very much for the patch! Applied (with some tweaks; see the version in Git). Cheers, Michael
quoted hunk
--- 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/