Merging upstream version 6.8.

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

1 files changed, 50 insertions, 0 deletions

diff --git a/man/man7/thread-keyring.7 b/man/man7/thread-keyring.7
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+.\" Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
+.\" Written by David Howells (dhowells@redhat.com)
+.\"
+.\" SPDX-License-Identifier: GPL-2.0-or-later
+.\"
+.TH thread-keyring 7 2024-05-02 "Linux man-pages (unreleased)"
+.SH NAME
+thread-keyring \- per-thread keyring
+.SH DESCRIPTION
+The thread keyring is a keyring used to anchor keys on behalf of a process.
+It is created only when a thread requests it.
+The thread keyring has the name (description)
+.IR _tid .
+.P
+A special serial number value,
+.BR KEY_SPEC_THREAD_KEYRING ,
+is defined that can be used in lieu of the actual serial number of
+the calling thread's thread keyring.
+.P
+From the
+.BR keyctl (1)
+utility, '\fB@t\fP' can be used instead of a numeric key ID in
+much the same way, but as
+.BR keyctl (1)
+is a program run after forking, this is of no utility.
+.P
+Thread keyrings are not inherited across
+.BR clone (2)
+and
+.BR fork (2)
+and are cleared by
+.BR execve (2).
+A thread keyring is destroyed when the thread that refers to it terminates.
+.P
+Initially, a thread does not have a thread keyring.
+If a thread doesn't have a thread keyring when it is accessed,
+then it will be created if it is to be modified;
+otherwise the operation fails with the error
+.BR ENOKEY .
+.SH SEE ALSO
+.ad l
+.nh
+.BR keyctl (1),
+.BR keyctl (3),
+.BR keyrings (7),
+.BR persistent\-keyring (7),
+.BR process\-keyring (7),
+.BR session\-keyring (7),
+.BR user\-keyring (7),
+.BR user\-session\-keyring (7)