Merging upstream version 4.23.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/upstream/debian-unstable/man5/proc_tid_children.5 b/upstream/debian-unstable/man5/proc_tid_children.5
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+.\" Copyright (C) 1994, 1995, Daniel Quinlan <quinlan@yggdrasil.com>
+.\" Copyright (C) 2002-2008, 2017, Michael Kerrisk <mtk.manpages@gmail.com>
+.\" Copyright (C) 2023, Alejandro Colomar <alx@kernel.org>
+.\"
+.\" SPDX-License-Identifier: GPL-3.0-or-later
+.\"
+.TH proc_tid_children 5 2024-05-02 "Linux man-pages 6.8"
+.SH NAME
+/proc/tid/children \- child tasks
+.SH DESCRIPTION
+.TP
+.IR /proc/ tid /children " (since Linux 3.5)"
+.\" commit 818411616baf46ceba0cff6f05af3a9b294734f7
+A space-separated list of child tasks of this task.
+Each child task is represented by its TID.
+.IP
+.\" see comments in get_children_pid() in fs/proc/array.c
+This option is intended for use by the checkpoint-restore (CRIU) system,
+and reliably provides a list of children only if all of the child processes
+are stopped or frozen.
+It does not work properly if children of the target task exit while
+the file is being read!
+Exiting children may cause non-exiting children to be omitted from the list.
+This makes this interface even more unreliable than classic PID-based
+approaches if the inspected task and its children aren't frozen,
+and most code should probably not use this interface.
+.IP
+Until Linux 4.2, the presence of this file was governed by the
+.B CONFIG_CHECKPOINT_RESTORE
+kernel configuration option.
+Since Linux 4.2,
+.\" commit 2e13ba54a2682eea24918b87ad3edf70c2cf085b
+it is governed by the
+.B CONFIG_PROC_CHILDREN
+option.
+.SH SEE ALSO
+.BR proc (5)