- Add vnode-backed swap space specification support. This is enabled when

  device names "md" or "md[0-9]*" and a "file" option are specified in
  /etc/fstab like this:

  md    none    swap    sw,file=/swap.bin       0       0

- Add GBDE/GELI encrypted swap space specification support, which
  rc.d/encswap supported.  The /etc/fstab lines are like the following:

  /dev/ada1p1.bde       none    swap    sw      0       0
  /dev/ada1p2.eli       none    swap    sw      0       0

  .eli devices accepts aalgo, ealgo, keylen, and sectorsize as options.

  swapctl(8) can understand an encrypted device in the command line
  like this:

  # swapctl -a /dev/ada2p1.bde

- "-L" flag is added to support "late" option to defer swapon until
  rc.d/mountlate runs.

- rc.d script change:

    rc.d/encswap -> removed
    rc.d/addswap -> just display a warning message if $swapfile is defined
    rc.d/swap1 -> renamed to rc.d/swap
    rc.d/swaplate -> newly added to support "late" option

These changes alleviate a race condition between device creation/removal
and swapon/swapoff.

MFC after:	1 week
Reviewed by:	wblock (manual page)

1 files changed, 0 insertions, 5 deletions

diff --git a/etc/defaults/rc.conf b/etc/defaults/rc.conf
index 687b0923f799..dda185505de5 100644
--- a/etc/defaults/rc.conf
+++ b/etc/defaults/rc.conf
@@ -32,8 +32,6 @@ early_late_divider="FILESYSTEMS"	# Script that separates early/late
 always_force_depends="NO"	# Set to check that indicated dependencies are
 				# running during boot (can increase boot time).
 
-swapfile="NO"		# Set to name of swapfile if aux swapfile desired.
-swapfile_mdunit="99"	# Swapfile md(4) unit number created by mdconfig(8).
 apm_enable="NO"		# Set to YES to enable APM BIOS functions (or NO).
 apmd_enable="NO"	# Run apmd to handle APM event from userland.
 apmd_flags=""		# Flags to apmd (if enabled).
@@ -85,9 +83,6 @@ geli_autodetach="YES"	# Automatically detach on last close.
 #geli_da1_autodetach="NO"
 #geli_mirror_home_flags="-k /etc/geli/home.keys"
 
-geli_swap_flags="-e aes -l 256 -s 4096 -d"	# Options for GELI-encrypted
-						# swap partitions.
-
 root_rw_mount="YES"	# Set to NO to inhibit remounting root read-write.
 fsck_y_enable="NO"	# Set to YES to do fsck -y if the initial preen fails.
 fsck_y_flags=""		# Additional flags for fsck -y