units: add readahead unit files

Makefile.am

@@ -209,6 +209,8 @@ nodist_systemunit_DATA = \
 	units/systemd-update-utmp-shutdown.service \
 	units/systemd-random-seed-save.service \
 	units/systemd-random-seed-load.service \
+	units/systemd-readahead-collect.service \
+	units/systemd-readahead-replay.service \
 	units/syslog.target
 
 dist_sessionunit_DATA = \
@@ -236,6 +238,8 @@ EXTRA_DIST = \
 	units/systemd-update-utmp-shutdown.service.in \
 	units/systemd-random-seed-save.service.in \
 	units/systemd-random-seed-load.service.in \
+	units/systemd-readahead-collect.service.in \
+	units/systemd-readahead-replay.service.in \
 	units/syslog.target.in \
 	units/session/exit.service.in \
 	systemd.pc.in
@@ -1149,4 +1153,3 @@ fedora: install
 	rm /lib/systemd/system/local-fs.target.wants/var-run.mount
 	rm /lib/systemd/system/local-fs.target.wants/var-lock.service
 	rm /lib/systemd/system/local-fs.target.wants/var-lock.mount
-	rm /lib/systemd/system/local-fs.target.wants/remount-rootfs.service

units/.gitignore

@@ -1,3 +1,5 @@
+systemd-readahead-collect.service
+systemd-readahead-replay.service
 serial-getty@.service
 systemd-kmsg-syslogd.service
 systemd-modules-load.service

units/fedora/sysinit.service

@@ -9,6 +9,7 @@
 Description=System Initialization
 DefaultDependencies=no
 Conflicts=shutdown.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service
 Before=shutdown.target emergency.service emergency.target
 
 [Service]

units/remount-rootfs.service

@@ -9,6 +9,7 @@
 Description=Remount Root FS
 DefaultDependencies=no
 Conflicts=shutdown.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service fsck.target
 Before=shutdown.target local-fs.target
 
 [Service]

units/sysctl.service

@@ -9,6 +9,7 @@
 Description=Apply Kernel Variables
 DefaultDependencies=no
 Conflicts=shutdown.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service
 Before=shutdown.target
 
 [Service]

units/systemd-modules-load.service.in

@@ -9,6 +9,7 @@
 Description=Load Kernel Modules
 DefaultDependencies=no
 Conflicts=shutdown.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service
 Before=shutdown.target
 
 [Service]

units/systemd-random-seed-load.service.in

@@ -11,6 +11,7 @@ DefaultDependencies=no
 Wants=local-fs.target
 After=local-fs.target
 Conflicts=shutdown.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service
 Before=shutdown.target
 
 [Service]

units/systemd-readahead-collect.service.in

@@ -0,0 +1,21 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=Collect Read-Ahead Data
+DefaultDependencies=no
+Conflicts=shutdown.target
+Before=shutdown.target
+
+[Service]
+Type=notify
+ExecStart=@rootlibexecdir@/systemd-readahead-collect
+RemainAfterExit=yes
+
+[Install]
+WantedBy=default.target
+Also=systemd-readahead-replay.service

units/systemd-readahead-replay.service.in

@@ -0,0 +1,21 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=Replay Read-Ahead Data
+DefaultDependencies=no
+Conflicts=shutdown.target
+Before=shutdown.target
+
+[Service]
+Type=notify
+ExecStart=@rootlibexecdir@/systemd-readahead-replay
+RemainAfterExit=yes
+
+[Install]
+WantedBy=default.target
+Also=systemd-readahead-collect.service

units/systemd-remount-api-vfs.service.in

@@ -9,6 +9,7 @@
 Description=Remount API VFS
 DefaultDependencies=no
 Conflicts=shutdown.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service
 Before=shutdown.target local-fs.target
 
 [Service]

units/systemd-vconsole-setup.service.in

@@ -9,6 +9,7 @@
 Description=Setup Virtual Console
 DefaultDependencies=no
 Conflicts=shutdown.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service
 Before=shutdown.target
 
 [Service]

units/tmpwatch.service

@@ -9,7 +9,7 @@
 Description=Cleanup of Temporary Directories
 DefaultDependencies=no
 Wants=local-fs.target
-After=local-fs.target
+After=systemd-readahead-collect.service systemd-readahead-replay.service local-fs.target
 Before=poweroff.service reboot.service halt.service killall.service
 
 [Service]