svn commit: r308865 - in stable/11: etc/rc.d sbin/swapon

[Jilles Tjoelker]

Author: jilles
Date: Sat Nov 19 20:02:49 2016
New Revision: 308865
URL: https://svnweb.freebsd.org/changeset/base/308865

Log:
  MFC r307755: swapoff: Remove only late devices with -aL.
  
  Currently, '/etc/rc.d/swaplate stop' removes all swap devices. This can be
  very slow and may not even be possible if there is a lot of swap space in
  use. However, removing swap devices is only needed for late swap devices
  that may depend on daemons that subsequent shutdown steps stop. Normal swap
  devices such as hard disk partitions will remain available throughout the
  shutdown process and need not be removed.
  
  In swapoff, interpret -aL to remove late swap devices only, and use this in
  etc/rc.d/swaplate. The meaning of -aL in swapon remains unchanged (add all
  swap devices, both normal and late).
  
  PR:		187081

Modified:
  stable/11/etc/rc.d/swaplate
  stable/11/sbin/swapon/swapon.8
  stable/11/sbin/swapon/swapon.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/etc/rc.d/swaplate
==============================================================================
--- stable/11/etc/rc.d/swaplate	Sat Nov 19 19:59:28 2016	(r308864)
+++ stable/11/etc/rc.d/swaplate	Sat Nov 19 20:02:49 2016	(r308865)
@@ -12,7 +12,7 @@
 name="swaplate"
 desc="Setup late swap space"
 start_cmd='/sbin/swapon -aLq'
-stop_cmd='/sbin/swapoff -aq'
+stop_cmd='/sbin/swapoff -aLq'
 
 load_rc_config swap
 run_rc_command "$1"

Modified: stable/11/sbin/swapon/swapon.8
==============================================================================
--- stable/11/sbin/swapon/swapon.8	Sat Nov 19 19:59:28 2016	(r308864)
+++ stable/11/sbin/swapon/swapon.8	Sat Nov 19 20:02:49 2016	(r308865)
@@ -28,7 +28,7 @@
 .\"     @(#)swapon.8	8.1 (Berkeley) 6/5/93
 .\" $FreeBSD$
 .\"
-.Dd October 2, 2016
+.Dd October 21, 2016
 .Dt SWAPON 8
 .Os
 .Sh NAME
@@ -98,6 +98,12 @@ will be removed, unless their
 .Dq noauto
 option is also set.
 If the
+.Fl L
+option is specified,
+only swap devices with the
+.Dq late
+option will be removed.
+If the
 .Fl q
 option is used,
 informational messages will not be

Modified: stable/11/sbin/swapon/swapon.c
==============================================================================
--- stable/11/sbin/swapon/swapon.c	Sat Nov 19 19:59:28 2016	(r308864)
+++ stable/11/sbin/swapon/swapon.c	Sat Nov 19 20:02:49 2016	(r308865)
@@ -176,6 +176,10 @@ main(int argc, char **argv)
 				    strstr(fsp->fs_mntops, "late") &&
 				    late == 0)
 					continue;
+				if (which_prog == SWAPOFF &&
+				    strstr(fsp->fs_mntops, "late") == NULL &&
+				    late != 0)
+					continue;
 				swfile = swap_on_off(fsp->fs_spec, 1,
 				    fsp->fs_mntops);
 				if (swfile == NULL) {