From e8dd0b99e413c100d8923a2e8d05ccc5d7967d24 Mon Sep 17 00:00:00 2001
From: Gary Lockyer <gary@catalyst.net.nz>
Date: Thu, 7 Feb 2019 13:50:40 +1300
Subject: [PATCH] man pages: document prefork process model

Document the process model options -M

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13765

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

Autobuild-User(master): Tim Beale <timbeale@samba.org>
Autobuild-Date(master): Thu Jan 31 04:25:14 CET 2019 on sn-devel-144

(manual merge of commit 4ecdcc4b462d03bec3ec36ba1b90f45d9977be8b,
 with description updated for v4.9 behaviour)
---
 docs-xml/manpages/samba.8.xml                | 35 ++++++++++++++++++++++++----
 docs-xml/smbdotconf/base/preforkchildren.xml |  4 +++-
 2 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/docs-xml/manpages/samba.8.xml b/docs-xml/manpages/samba.8.xml
index 529b687..0d5affd 100644
--- a/docs-xml/manpages/samba.8.xml
+++ b/docs-xml/manpages/samba.8.xml
@@ -101,14 +101,39 @@
 		</varlistentry>
 
 		<varlistentry>
-		<term>-M model</term>
+		<term>-M|--model</term>
 		<listitem><para>This parameter can be used to specify the
 		&quot;process model&quot; samba should use. This determines
 		how concurrent clients are handled. Available process
-		models include <emphasis>single</emphasis> (everything in
-		a single process), <emphasis>standard</emphasis> (similar
-		behaviour to that of Samba 3), <emphasis>thread</emphasis>
-		(single process, different threads.
+		models include:
+		<itemizedlist>
+			<listitem><para><emphasis>single</emphasis></para>
+			<para>All Samba services run in a single process. This is
+			not recommended for production configurations.
+			</para></listitem>
+
+			<listitem><para><emphasis>standard</emphasis></para>
+			<para>A process is created for each Samba service,
+			and for those services that support it (currently only
+			LDAP and NETLOGON) a new processes is started
+			for each new client connection.</para></listitem>
+
+			<listitem><para><emphasis>prefork</emphasis></para>
+			<para>A process is started for each Samba service, and a
+			fixed number of worker processes are started for those
+			services that support it (currently only LDAP).
+			The client connections are then shared amongst the worker
+			processes.
+			Requests for services not supporting prefork are handled
+			by a single process for that service.</para>
+			<para>The number of prefork worker processes started is
+			controlled by the
+			<citerefentry><refentrytitle>smb.conf</refentrytitle>
+			<manvolnum>5</manvolnum></citerefentry> parameter
+		        <smbconfoption name="prefork children"/>,
+			which defaults to 1.
+			</para></listitem>
+		</itemizedlist>
 		</para></listitem>
 		</varlistentry>
 
diff --git a/docs-xml/smbdotconf/base/preforkchildren.xml b/docs-xml/smbdotconf/base/preforkchildren.xml
index 720e439..f2f55a5 100644
--- a/docs-xml/smbdotconf/base/preforkchildren.xml
+++ b/docs-xml/smbdotconf/base/preforkchildren.xml
@@ -4,7 +4,9 @@
                  xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
 <description>
 	<para>This option controls the number of worker processes that are
-		started for each service when prefork process model is enabled.
+		started for each service when prefork process model is enabled
+		(see <citerefentry><refentrytitle>samba</refentrytitle>
+			<manvolnum>8</manvolnum></citerefentry> -M).
 		The prefork children are only started for those services that
 		support prefork (currently only ldap). For processes that don't
 		support preforking all requests are handled by a single process
-- 
2.7.4