Commit 6bc47621 authored Apr 23, 2020 by Stephen Kitt Committed by Jonathan Corbet Apr 28, 2020

docs: sysctl/kernel: document cad_pid



Based on the implementation in kernel/sysctl.c (the proc_do_cad_pid()
function), kernel/reboot.c, and include/linux/sched/signal.h.

Signed-off-by: Stephen Kitt <steve@sk2.org>
Link: https://lore.kernel.org/r/20200423183651.15365-1-steve@sk2.org


Signed-off-by: Jonathan Corbet <corbet@lwn.net>

parent 2ad9a844

Documentation/admin-guide/sysctl/kernel.rst

+10 −0

Original line number	Diff line number	Diff line
		@@ -116,6 +116,16 @@ run. The statistics can be seen using ``bpftool``.
		= ===================================


		cad_pid
		=======

		This is the pid which will be signalled on reboot (notably, by
		Ctrl-Alt-Delete). Writing a value to this file which doesn't
		correspond to a running process will result in ``-ESRCH``.

		See also `ctrl-alt-del`_.


		cap_last_cap
		============