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namespaces.7: Document the /proc/[pid]/ns/pid_for_children file 

Corresponding kernel commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eaa0d190bfe1ed891b814a52712dcd852554cb08

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Kirill Tkhai 2017-05-18 18:05:30 +03:00 committed by Michael Kerrisk
parent e710f10c36
commit 99e2f75239
1 changed files with 9 additions and 1 deletions
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10
man7/namespaces.7
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@ -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