rpms/systemd
7
0
Fork 0
Code Issues Pull Requests Releases Activity
b1a5d764a3
systemd/0383-readahead-wipe-out-readahead.patch

3369 lines
119 KiB
Diff
Raw Normal View History

Update to latest git
2014-10-04 02:43:52 +00:00
From d6bc8348d5be8576a475ac8ced2b0146e60fb71f Mon Sep 17 00:00:00 2001
From: Daniel Buch <boogiewasthere@gmail.com>
Date: Tue, 26 Aug 2014 21:17:22 +0200
Subject: [PATCH] readahead: wipe out readahead
---
Makefile-man.am | 31 --
Makefile.am | 54 +-
configure.ac | 9 -
man/sd-daemon.xml | 1 -
man/sd-login.xml | 1 -
man/sd-readahead.xml | 117 -----
man/sd_readahead.xml | 178 -------
man/systemd-notify.xml | 11 -
man/systemd-readahead-replay.service.xml | 203 --------
po/POTFILES.skip | 1 -
shell-completion/zsh/_systemd | 3 +-
src/cryptsetup/cryptsetup-generator.c | 2 +-
src/gpt-auto-generator/gpt-auto-generator.c | 1 -
src/notify/notify.c | 22 +-
src/readahead/Makefile | 1 -
src/readahead/readahead-analyze.c | 146 ------
src/readahead/readahead-collect.c | 650 ------------------------
src/readahead/readahead-common.c | 398 ---------------
src/readahead/readahead-common.h | 61 ---
src/readahead/readahead-replay.c | 281 ----------
src/readahead/readahead.c | 163 ------
src/readahead/sd-readahead.c | 89 ----
src/readahead/test-ssd.c | 41 --
src/systemd/sd-readahead.h | 73 ---
system-preset/90-systemd.preset | 1 -
units/.gitignore | 3 -
units/ldconfig.service | 2 +-
units/quotaon.service.in | 2 +-
units/system-update.target | 2 +-
units/systemd-backlight@.service.in | 2 +-
units/systemd-binfmt.service.in | 2 +-
units/systemd-firstboot.service.in | 2 +-
units/systemd-fsck-root.service.in | 1 -
units/systemd-fsck@.service.in | 2 +-
units/systemd-journal-catalog-update.service.in | 2 +-
units/systemd-modules-load.service.in | 1 -
units/systemd-quotacheck.service.in | 2 +-
units/systemd-random-seed.service.in | 2 +-
units/systemd-readahead-collect.service.in | 28 -
units/systemd-readahead-done.service.in | 22 -
units/systemd-readahead-done.timer | 22 -
units/systemd-readahead-drop.service | 19 -
units/systemd-readahead-replay.service.in | 26 -
units/systemd-remount-fs.service.in | 2 +-
units/systemd-rfkill@.service.in | 2 +-
units/systemd-sysctl.service.in | 1 -
units/systemd-sysusers.service.in | 2 +-
units/systemd-tmpfiles-clean.service.in | 2 +-
units/systemd-tmpfiles-setup-dev.service.in | 2 +-
units/systemd-tmpfiles-setup.service.in | 2 +-
units/systemd-udev-hwdb-update.service.in | 2 +-
units/systemd-update-done.service.in | 2 +-
units/systemd-update-utmp.service.in | 2 +-
units/systemd-vconsole-setup.service.in | 1 -
54 files changed, 24 insertions(+), 2676 deletions(-)
delete mode 100644 man/sd-readahead.xml
delete mode 100644 man/sd_readahead.xml
delete mode 100644 man/systemd-readahead-replay.service.xml
delete mode 120000 src/readahead/Makefile
delete mode 100644 src/readahead/readahead-analyze.c
delete mode 100644 src/readahead/readahead-collect.c
delete mode 100644 src/readahead/readahead-common.c
delete mode 100644 src/readahead/readahead-common.h
delete mode 100644 src/readahead/readahead-replay.c
delete mode 100644 src/readahead/readahead.c
delete mode 100644 src/readahead/sd-readahead.c
delete mode 100644 src/readahead/test-ssd.c
delete mode 100644 src/systemd/sd-readahead.h
delete mode 100644 units/systemd-readahead-collect.service.in
delete mode 100644 units/systemd-readahead-done.service.in
delete mode 100644 units/systemd-readahead-done.timer
delete mode 100644 units/systemd-readahead-drop.service
delete mode 100644 units/systemd-readahead-replay.service.in
diff --git a/Makefile-man.am b/Makefile-man.am
index 5c27937152..1be6d3aafa 100644
--- a/Makefile-man.am
+++ b/Makefile-man.am
@@ -1141,34 +1141,6 @@ man/systemd-random-seed.html: man/systemd-random-seed.service.html
endif
-if ENABLE_READAHEAD
-MANPAGES += \
- man/sd-readahead.3 \
- man/sd_readahead.3 \
- man/systemd-readahead-replay.service.8
-MANPAGES_ALIAS += \
- man/systemd-readahead-collect.service.8 \
- man/systemd-readahead-done.service.8 \
- man/systemd-readahead-done.timer.8 \
- man/systemd-readahead.8
-man/systemd-readahead-collect.service.8: man/systemd-readahead-replay.service.8
-man/systemd-readahead-done.service.8: man/systemd-readahead-replay.service.8
-man/systemd-readahead-done.timer.8: man/systemd-readahead-replay.service.8
-man/systemd-readahead.8: man/systemd-readahead-replay.service.8
-man/systemd-readahead-collect.service.html: man/systemd-readahead-replay.service.html
- $(html-alias)
-
-man/systemd-readahead-done.service.html: man/systemd-readahead-replay.service.html
- $(html-alias)
-
-man/systemd-readahead-done.timer.html: man/systemd-readahead-replay.service.html
- $(html-alias)
-
-man/systemd-readahead.html: man/systemd-readahead-replay.service.html
- $(html-alias)
-
-endif
-
if ENABLE_RESOLVED
MANPAGES += \
man/resolved.conf.5 \
@@ -1549,7 +1521,6 @@ EXTRA_DIST += \
man/sd-id128.xml \
man/sd-journal.xml \
man/sd-login.xml \
- man/sd-readahead.xml \
man/sd_booted.xml \
man/sd_bus_creds_get_pid.xml \
man/sd_bus_creds_new_from_pid.xml \
@@ -1591,7 +1562,6 @@ EXTRA_DIST += \
man/sd_login_monitor_new.xml \
man/sd_notify.xml \
man/sd_pid_get_session.xml \
- man/sd_readahead.xml \
man/sd_seat_get_active.xml \
man/sd_session_is_active.xml \
man/sd_uid_get_state.xml \
@@ -1647,7 +1617,6 @@ EXTRA_DIST += \
man/systemd-path.xml \
man/systemd-quotacheck.service.xml \
man/systemd-random-seed.service.xml \
- man/systemd-readahead-replay.service.xml \
man/systemd-remount-fs.service.xml \
man/systemd-resolved.service.xml \
man/systemd-rfkill@.service.xml \
diff --git a/Makefile.am b/Makefile.am
index 6b2ca29ce8..53128518b4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2346,8 +2346,7 @@ systemctl_LDADD = \
# ------------------------------------------------------------------------------
systemd_notify_SOURCES = \
- src/notify/notify.c \
- src/readahead/sd-readahead.c
+ src/notify/notify.c
systemd_notify_LDADD = \
libsystemd-internal.la \
@@ -4333,57 +4332,6 @@ EXTRA_DIST += \
units/systemd-vconsole-setup.service.in
# ------------------------------------------------------------------------------
-if ENABLE_READAHEAD
-systemd_readahead_SOURCES = \
- src/readahead/readahead.c \
- src/readahead/readahead-collect.c \
- src/readahead/readahead-replay.c \
- src/readahead/readahead-analyze.c \
- src/readahead/readahead-common.c \
- src/readahead/readahead-common.h
-
-systemd_readahead_LDADD = \
- libsystemd-internal.la \
- libudev-internal.la \
- libsystemd-shared.la
-
-dist_doc_DATA += \
- src/readahead/sd-readahead.c \
- src/systemd/sd-readahead.h
-
-rootlibexec_PROGRAMS += \
- systemd-readahead
-
-dist_systemunit_DATA += \
- units/systemd-readahead-drop.service \
- units/systemd-readahead-done.timer
-
-nodist_systemunit_DATA += \
- units/systemd-readahead-collect.service \
- units/systemd-readahead-replay.service \
- units/systemd-readahead-done.service
-
-manual_tests += \
- test-ssd
-
-test_ssd_SOURCES = \
- src/readahead/test-ssd.c \
- src/readahead/readahead-common.c \
- src/readahead/readahead-common.h
-
-test_ssd_LDADD = \
- libsystemd-internal.la \
- libudev-internal.la \
- libsystemd-shared.la
-
-endif
-
-EXTRA_DIST += \
- units/systemd-readahead-collect.service.in \
- units/systemd-readahead-replay.service.in \
- units/systemd-readahead-done.service.in
-
-# ------------------------------------------------------------------------------
if ENABLE_BOOTCHART
systemd_bootchart_SOURCES = \
src/bootchart/bootchart.c \
diff --git a/configure.ac b/configure.ac
index 38a165c101..84644e163f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -842,14 +842,6 @@ fi
AM_CONDITIONAL(ENABLE_VCONSOLE, [test "$have_vconsole" = "yes"])
# ------------------------------------------------------------------------------
-have_readahead=no
-AC_ARG_ENABLE(readahead, AS_HELP_STRING([--disable-readahead], [disable readahead tools]))
-if test "x$enable_readahead" != "xno"; then
- have_readahead=yes
-fi
-AM_CONDITIONAL(ENABLE_READAHEAD, [test "$have_readahead" = "yes"])
-
-# ------------------------------------------------------------------------------
have_bootchart=no
AC_ARG_ENABLE(bootchart, AS_HELP_STRING([--disable-bootchart], [disable bootchart tool]))
if test "x$enable_bootchart" != "xno"; then
@@ -1341,7 +1333,6 @@ AC_MSG_RESULT([
ELFUTILS: ${have_elfutils}
binfmt: ${have_binfmt}
vconsole: ${have_vconsole}
- readahead: ${have_readahead}
bootchart: ${have_bootchart}
quotacheck: ${have_quotacheck}
tmpfiles: ${have_tmpfiles}
diff --git a/man/sd-daemon.xml b/man/sd-daemon.xml
index d78a1151c5..5f331e740a 100644
--- a/man/sd-daemon.xml
+++ b/man/sd-daemon.xml
@@ -140,7 +140,6 @@
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd-readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
diff --git a/man/sd-login.xml b/man/sd-login.xml
index d8d45048ed..f21170db16 100644
--- a/man/sd-login.xml
+++ b/man/sd-login.xml
@@ -131,7 +131,6 @@
<citerefentry><refentrytitle>sd_get_seats</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_login_monitor_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd-readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
diff --git a/man/sd-readahead.xml b/man/sd-readahead.xml
deleted file mode 100644
index bcc46b24d8..0000000000
--- a/man/sd-readahead.xml
+++ /dev/null
@@ -1,117 +0,0 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
--->
-
-<refentry id="sd-readahead" conditional='ENABLE_READAHEAD'>
-
- <refentryinfo>
- <title>sd-readahead</title>
- <productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>sd-readahead</refentrytitle>
- <manvolnum>3</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>sd-readahead</refname>
- <refpurpose>Reference implementation of APIs for
- controlling boot-time read-ahead</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <funcsynopsis>
- <funcsynopsisinfo>#include "sd-readahead.h"</funcsynopsisinfo>
- </funcsynopsis>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
-
- <para><filename>sd-readahead.c</filename> and
- <filename>sd-readahead.h</filename> provide a
- reference implementation for APIs for controlling boot-time
- read-ahead, as implemented by the read-ahead subsystem
- of the
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- init system.</para>
-
- <para>See
- <citerefentry><refentrytitle>sd_readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry>
- for more information about the function
- implemented.</para>
- </refsect1>
-
- <refsect1>
- <title>Notes</title>
-
- <para>This interface is provided by the reference
- implementation of APIs for controlling boot-time
- read-ahead and distributed with the systemd
- package. The algorithms it implements are simple, and
- can easily be reimplemented in daemons if it is
- important to support this interface without using the
- reference implementation. See the respective function
- man pages for details.</para>
-
- <para>In addition, for details about the algorithms,
- check the liberally licensed reference implementation
- sources:
- <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/readahead/sd-readahead.c"/>
- and <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-readahead.h"/></para>
-
- <para>These APIs are implemented in the reference
- implementation's drop-in
- <filename>sd-readahead.c</filename> and
- <filename>sd-readahead.h</filename> files. It is
- recommended that applications consuming these APIs copy
- the implementation into their source tree, either
- verbatim or in excerpts. These interfaces are
- currently not available in a dynamic library.</para>
-
- <para>The functions provided by this interface become
- NOPs when -DDISABLE_SYSTEMD is set during
- compilation. In addition, if
- <filename>sd-readhead.c</filename> is compiled on
- non-Linux systems it becomes NOPs.</para>
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd_readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>
- </para>
- </refsect1>
-
-</refentry>
diff --git a/man/sd_readahead.xml b/man/sd_readahead.xml
deleted file mode 100644
index 98272997cb..0000000000
--- a/man/sd_readahead.xml
+++ /dev/null
@@ -1,178 +0,0 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
--->
-
-<refentry id="sd_readahead" conditional='ENABLE_READAHEAD'>
-
- <refentryinfo>
- <title>sd_readahead</title>
- <productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>sd_readahead</refentrytitle>
- <manvolnum>3</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>sd_readahead</refname>
- <refpurpose>Control ongoing disk boot-time read-ahead operations</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <funcsynopsis>
- <funcsynopsisinfo>#include "sd-readahead.h"</funcsynopsisinfo>
-
- <funcprototype>
- <funcdef>int <function>sd_readahead</function></funcdef>
- <paramdef>const char *<parameter>action</parameter></paramdef>
- </funcprototype>
- </funcsynopsis>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
- <para><function>sd_readahead()</function> may be
- called by programs involved with early boot-up to
- control ongoing boot-time disk read-ahead operations. It may be
- used to terminate read-ahead operations in case an
- uncommon disk access pattern is to be expected and
- hence read-ahead replay or collection is unlikely to
- have the desired speed-up effect on the current or
- future boot-ups.</para>
-
- <para>The <parameter>action</parameter> should be one
- of the following strings:</para>
-
- <variablelist>
- <varlistentry>
- <term>cancel</term>
-
- <listitem><para>Terminates read-ahead
- data collection, and drops all
- read-ahead data collected during this
- boot-up.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term>done</term>
-
- <listitem><para>Terminates read-ahead
- data collection, but keeps all
- read-ahead data collected during this
- boot-up around for use during
- subsequent boot-ups.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term>noreplay</term>
-
- <listitem><para>Terminates read-ahead
- replay.</para></listitem>
- </varlistentry>
-
- </variablelist>
-
- </refsect1>
-
- <refsect1>
- <title>Return Value</title>
-
- <para>On failure, these calls return a negative
- errno-style error code. It is generally recommended to
- ignore the return value of this call.</para>
- </refsect1>
-
- <refsect1>
- <title>Notes</title>
-
- <para>This function is provided by the reference
- implementation of APIs for controlling boot-time
- read-ahead and distributed with the systemd
- package. The algorithm it implements is simple, and
- can easily be reimplemented in daemons if it is
- important to support this interface without using the
- reference implementation.</para>
-
- <para>Internally, this function creates a file in
- <filename>/run/systemd/readahead/</filename> which is
- then used as flag file to notify the read-ahead
- subsystem.</para>
-
- <para>For details about the algorithm check the
- liberally licensed reference implementation sources:
- <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/readahead/sd-readahead.c"/>
- and <ulink
- url="http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-readahead.h"/></para>
-
- <para><function>sd_readahead()</function> is
- implemented in the reference implementation's drop-in
- <filename>sd-readahead.c</filename> and
- <filename>sd-readahead.h</filename> files. It is
- recommended that applications consuming this API copy
- the implementation into their source tree. For more
- details about the reference implementation, see
- <citerefentry><refentrytitle>sd-readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry></para>
-
- <para>If -DDISABLE_SYSTEMD is set during compilation,
- this function will always return 0 and otherwise
- become a NOP.</para>
- </refsect1>
-
- <refsect1>
- <title>Examples</title>
-
- <example>
- <title>Cancelling all read-ahead operations</title>
-
- <para>During boots where SELinux has to
- relabel the file system hierarchy, it will
- create a large amount of disk accesses that
- are not necessary during normal boots. Hence
- it is a good idea to disable both read-ahead replay and read-ahead collection.
- </para>
-
- <programlisting>sd_readahead("cancel");
-sd_readahead("noreplay");</programlisting>
- </example>
-
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd-readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>
- </para>
- </refsect1>
-
-</refentry>
diff --git a/man/systemd-notify.xml b/man/systemd-notify.xml
index 69baae0dce..684f490099 100644
--- a/man/systemd-notify.xml
+++ b/man/systemd-notify.xml
@@ -141,17 +141,6 @@
<citerefentry><refentrytitle>sd_booted</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
</varlistentry>
- <varlistentry>
- <term><option>--readahead=</option></term>
-
- <listitem><para>Controls disk
- read-ahead operations. The argument
- must be a string, and either "cancel",
- "done" or "noreplay". For details
- about the semantics of this option see
- <citerefentry><refentrytitle>sd_readahead</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
- </varlistentry>
-
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
</variablelist>
diff --git a/man/systemd-readahead-replay.service.xml b/man/systemd-readahead-replay.service.xml
deleted file mode 100644
index 669fe78942..0000000000
--- a/man/systemd-readahead-replay.service.xml
+++ /dev/null
@@ -1,203 +0,0 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
--->
-
-<refentry id="systemd-readahead-replay.service" conditional='ENABLE_READAHEAD'
- xmlns:xi="http://www.w3.org/2001/XInclude">
-
- <refentryinfo>
- <title>systemd-readahead-replay.service</title>
- <productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>systemd-readahead-replay.service</refentrytitle>
- <manvolnum>8</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>systemd-readahead-replay.service</refname>
- <refname>systemd-readahead-collect.service</refname>
- <refname>systemd-readahead-done.service</refname>
- <refname>systemd-readahead-done.timer</refname>
- <refname>systemd-readahead</refname>
- <refpurpose>Disk read ahead logic</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <para><filename>systemd-readahead-replay.service</filename></para>
- <para><filename>systemd-readahead-collect.service</filename></para>
- <para><filename>systemd-readahead-done.service</filename></para>
- <para><filename>systemd-readahead-done.timer</filename></para>
- <cmdsynopsis>
- <command>/usr/lib/systemd/systemd-readahead/systemd-readahead</command>
- <arg choice="opt" rep="repeat">OPTIONS</arg>
- <arg choice="plain">COMMAND</arg>
- <arg choice="opt">DIRECTORY | FILE</arg>
- </cmdsynopsis>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
-
- <para><filename>systemd-readahead-collect.service</filename>
- is a service that collects disk usage patterns at boot
- time. <filename>systemd-readahead-replay.service</filename>
- is a service that replays this access data collected
- at the subsequent boot. Since disks tend to be
- magnitudes slower than RAM, this is intended to improve
- boot speeds by pre-loading early at boot all data on
- disk that is known to be read for the complete boot
- process.</para>
-
- <para><filename>systemd-readahead-done.service</filename>
- is executed a short while after boot completed and signals
- <filename>systemd-readahead-collect.service</filename>
- to end data collection. On this signal, this service
- will then sort the collected disk accesses and store
- information about them in
- <filename>/.readahead</filename>.</para>
-
- <para>Normally, both
- <filename>systemd-readahead-collect.service</filename>
- and
- <filename>systemd-readahead-replay.service</filename>
- are activated at boot so that access patterns from the
- preceding boot are replayed and new data collected
- for the subsequent boot. However, on read-only media
- where the collected data cannot be stored, it might
- be a good idea to disable
- <filename>systemd-readahead-collect.service</filename>.</para>
-
- <para>On rotating media, when replaying disk accesses
- at early boot,
- <filename>systemd-readahead-replay.service</filename>
- will order read requests by their location on disk. On
- non-rotating media, they will be ordered by their
- original access timestamp. If the file system supports
- it,
- <filename>systemd-readahead-collect.service</filename>
- will also defragment and rearrange files on disk to
- optimize subsequent boot times.</para>
- </refsect1>
-
- <refsect1>
- <title>Options</title>
-
- <para><filename>systemd-readahead</filename> understands
- the following options:</para>
-
- <variablelist>
- <varlistentry>
- <term><option>--files-max=</option></term>
-
- <listitem><para>Maximum number of
- files to read ahead. Only valid
- for thes <command>collect</command>
- command.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--file-size-max=</option></term>
-
- <listitem><para>Maximum size of files
- in bytes to read ahead. Only valid
- for the <command>collect</command>
- and <command>replay</command>
- commands.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--timeout=</option></term>
-
- <listitem><para>Maximum time in microseconds
- to spend collecting data. Only valid
- for the <command>collect</command>
- command.</para></listitem>
- </varlistentry>
-
- <xi:include href="standard-options.xml" xpointer="help" />
- <xi:include href="standard-options.xml" xpointer="version" />
- </variablelist>
-
- </refsect1>
-
- <refsect1>
- <title>Commands</title>
-
- <para>The following commands are understood by
- <filename>systemd-readahead</filename>:</para> <variablelist>
- <varlistentry>
- <term><command>collect
- [<replaceable>DIRECTORY</replaceable>]</command></term>
- <listitem>
- <para>Collect read-ahead data on
- early boot. When terminating, it will
- write out a pack file to the indicated
- directory containing the read-ahead
- data. </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><command>replay
- [<replaceable>DIRECTORY</replaceable>]</command></term>
- <listitem>
- <para>Perform read-ahead on the
- specified directory tree.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><command>analyze
- [<replaceable>FILE</replaceable>]</command></term>
- <listitem>
- <para>Dumps the content of the
- read-ahead pack file to the
- terminal. For each file, the
- output lists approximately how
- much will be read ahead by
- the <command>replay</command>
- command.</para>
- </listitem>
- </varlistentry>
-
- </variablelist>
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- </para>
- </refsect1>
-
-</refentry>
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index b552029b82..51254ec533 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -17,6 +17,5 @@ src/hostname/hostnamed.c
src/locale/localed.c
src/core/org.freedesktop.systemd1.policy.in
src/timedate/timedated.c
-units/systemd-readahead-done.service.in
units/user@.service.in
units/debug-shell.service.in
diff --git a/shell-completion/zsh/_systemd b/shell-completion/zsh/_systemd
index 06f03bd1e7..58b1c7b4e5 100644
--- a/shell-completion/zsh/_systemd
+++ b/shell-completion/zsh/_systemd
@@ -63,8 +63,7 @@ case "$service" in
'--ready[Inform the init system about service start-up completion.]' \
'--pid=[Inform the init system about the main PID of the daemon]' \
'--status=[Send a free-form status string for the daemon to the init systemd]' \
- '--booted[Returns 0 if the system was booted up with systemd]' \
- '--readahead=[Controls disk read-ahead operations]:arguments:(cancel done noreply)'
+ '--booted[Returns 0 if the system was booted up with systemd]'
;;
systemd-tty-ask-password-agent)
_arguments \
diff --git a/src/cryptsetup/cryptsetup-generator.c b/src/cryptsetup/cryptsetup-generator.c
index 3233e15f4e..137b7876d6 100644
--- a/src/cryptsetup/cryptsetup-generator.c
+++ b/src/cryptsetup/cryptsetup-generator.c
@@ -131,7 +131,7 @@ static int create_disk(
"Conflicts=umount.target\n"
"BindsTo=dev-mapper-%i.device\n"
"IgnoreOnIsolate=true\n"
- "After=systemd-readahead-collect.service systemd-readahead-replay.service cryptsetup-pre.target\n",
+ "After=cryptsetup-pre.target\n",
f);
if (!nofail)
diff --git a/src/gpt-auto-generator/gpt-auto-generator.c b/src/gpt-auto-generator/gpt-auto-generator.c
index 25d868aa87..539e2e64b5 100644
--- a/src/gpt-auto-generator/gpt-auto-generator.c
+++ b/src/gpt-auto-generator/gpt-auto-generator.c
@@ -144,7 +144,6 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
"Before=umount.target cryptsetup.target\n"
"After=%s\n"
"IgnoreOnIsolate=true\n"
- "After=systemd-readahead-collect.service systemd-readahead-replay.service\n\n"
"[Service]\n"
"Type=oneshot\n"
"RemainAfterExit=yes\n"
diff --git a/src/notify/notify.c b/src/notify/notify.c
index 33933e4bf6..a0f757a252 100644
--- a/src/notify/notify.c
+++ b/src/notify/notify.c
@@ -31,7 +31,6 @@
#include "strv.h"
#include "util.h"
#include "log.h"
-#include "sd-readahead.h"
#include "build.h"
#include "env-util.h"
@@ -39,7 +38,6 @@ static bool arg_ready = false;
static pid_t arg_pid = 0;
static const char *arg_status = NULL;
static bool arg_booted = false;
-static const char *arg_readahead = NULL;
static void help(void) {
printf("%s [OPTIONS...] [VARIABLE=VALUE...]\n\n"
@@ -49,8 +47,7 @@ static void help(void) {
" --ready Inform the init system about service start-up completion\n"
" --pid[=PID] Set main pid of daemon\n"
" --status=TEXT Set status text\n"
- " --booted Returns 0 if the system was booted up with systemd, non-zero otherwise\n"
- " --readahead=ACTION Controls read-ahead operations\n",
+ " --booted Returns 0 if the system was booted up with systemd, non-zero otherwise\n",
program_invocation_short_name);
}
@@ -62,7 +59,6 @@ static int parse_argv(int argc, char *argv[]) {
ARG_PID,
ARG_STATUS,
ARG_BOOTED,
- ARG_READAHEAD
};
static const struct option options[] = {
@@ -72,7 +68,6 @@ static int parse_argv(int argc, char *argv[]) {
{ "pid", optional_argument, NULL, ARG_PID },
{ "status", required_argument, NULL, ARG_STATUS },
{ "booted", no_argument, NULL, ARG_BOOTED },
- { "readahead", required_argument, NULL, ARG_READAHEAD },
{}
};
@@ -118,10 +113,6 @@ static int parse_argv(int argc, char *argv[]) {
arg_booted = true;
break;
- case ARG_READAHEAD:
- arg_readahead = optarg;
- break;
-
case '?':
return -EINVAL;
@@ -134,8 +125,7 @@ static int parse_argv(int argc, char *argv[]) {
!arg_ready &&
!arg_status &&
!arg_pid &&
- !arg_booted &&
- !arg_readahead) {
+ !arg_booted) {
help();
return -EINVAL;
}
@@ -160,14 +150,6 @@ int main(int argc, char* argv[]) {
if (arg_booted)
return sd_booted() <= 0;
- if (arg_readahead) {
- r = sd_readahead(arg_readahead);
- if (r < 0) {
- log_error("Failed to issue read-ahead control command: %s", strerror(-r));
- goto finish;
- }
- }
-
if (arg_ready)
our_env[i++] = (char*) "READY=1";
diff --git a/src/readahead/Makefile b/src/readahead/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/readahead/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile
\ No newline at end of file
diff --git a/src/readahead/readahead-analyze.c b/src/readahead/readahead-analyze.c
deleted file mode 100644
index 76db3cb7e4..0000000000
--- a/src/readahead/readahead-analyze.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2012 Auke Kok <auke-jan.h.kok@intel.com>
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <inttypes.h>
-#include <linux/limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-
-#include "readahead-common.h"
-
-int main_analyze(const char *pack_path) {
- char line[LINE_MAX];
- _cleanup_fclose_ FILE *pack = NULL;
- int a;
- int missing = 0;
- size_t tsize = 0;
-
- if (!pack_path)
- pack_path = "/.readahead";
-
- pack = fopen(pack_path, "re");
- if (!pack) {
- log_error("Pack file missing.");
- goto fail;
- }
-
- if (!fgets(line, sizeof(line), pack)) {
- log_error("Pack file corrupt.");
- goto fail;
- }
-
- char_array_0(line);
-
- if (!endswith(line, READAHEAD_PACK_FILE_VERSION)) {
- log_error("Pack file version incompatible with this parser.");
- goto fail;
- }
-
- if ((a = getc(pack)) == EOF) {
- log_error("Pack file corrupt.");
- goto fail;
- }
-
- fputs(" pct sections size: path\n"
- " === ======== ====: ====\n", stdout);
-
- for (;;) {
- char path[PATH_MAX];
- struct stat st;
- uint64_t inode;
- int pages = 0;
- int sections = 0;
-
- if (!fgets(path, sizeof(path), pack))
- break; /* done */
-
- path[strlen(path)-1] = 0;
-
- if (fread(&inode, sizeof(inode), 1, pack) != 1) {
- log_error("Pack file corrupt.");
- goto fail;
- }
-
- for (;;) {
- uint32_t b, c;
-
- if (fread(&b, sizeof(b), 1, pack) != 1 ||
- fread(&c, sizeof(c), 1, pack) != 1) {
- log_error("Pack file corrupt.");
- goto fail;
- }
- if ((b == 0) && (c == 0))
- break;
-
- /* Uncomment this to get all the chunks separately
- printf(" %d: %d %d\n", sections, b, c);
- */
-
- pages += (c - b);
- sections++;
- }
-
- if (stat(path, &st) == 0) {
- off_t size;
-
- if (sections == 0)
- size = st.st_size;
- else
- size = pages * page_size();
-
- tsize += size;
-
- printf(" %4jd%% (%2d) %12jd: %s\n",
- (intmax_t) (sections && st.st_size ? size * 100 / st.st_size : 100),
- sections ? sections : 1,
- (intmax_t) size,
- path);
- } else {
- printf(" %4dp (%2d) %12s: %s (MISSING)\n",
- sections ? pages : -1,
- sections ? sections : 1,
- "???",
- path);
- missing++;
- }
-
- }
-
- printf("\nHOST: %s"
- "TYPE: %c\n"
- "MISSING: %d\n"
- "TOTAL: %zu\n",
- line,
- a,
- missing,
- tsize);
-
- return EXIT_SUCCESS;
-
-fail:
- return EXIT_FAILURE;
-}
diff --git a/src/readahead/readahead-collect.c b/src/readahead/readahead-collect.c
deleted file mode 100644
index 822a803a41..0000000000
--- a/src/readahead/readahead-collect.c
+++ /dev/null
@@ -1,650 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <inttypes.h>
-#include <fcntl.h>
-#include <linux/limits.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/select.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <linux/fanotify.h>
-#include <sys/signalfd.h>
-#include <sys/poll.h>
-#include <sys/mman.h>
-#include <linux/fs.h>
-#include <linux/fiemap.h>
-#include <sys/ioctl.h>
-#include <sys/vfs.h>
-#include <getopt.h>
-#include <sys/inotify.h>
-#include <math.h>
-
-#ifdef HAVE_LINUX_BTRFS_H
-#include <linux/btrfs.h>
-#endif
-
-#ifdef HAVE_FANOTIFY_INIT
-#include <sys/fanotify.h>
-#endif
-
-#include "systemd/sd-daemon.h"
-
-#include "missing.h"
-#include "util.h"
-#include "set.h"
-#include "ioprio.h"
-#include "readahead-common.h"
-#include "virt.h"
-
-/* fixme:
- *
- * - detect ssd on btrfs/lvm...
- * - read ahead directories
- * - gzip?
- * - remount rw?
- * - handle files where nothing is in mincore
- * - does ioprio_set work with fadvise()?
- */
-
-static ReadaheadShared *shared = NULL;
-static usec_t starttime;
-
-/* Avoid collisions with the NULL pointer */
-#define SECTOR_TO_PTR(s) ULONG_TO_PTR((s)+1)
-#define PTR_TO_SECTOR(p) (PTR_TO_ULONG(p)-1)
-
-static int btrfs_defrag(int fd) {
- struct btrfs_ioctl_vol_args data = { .fd = fd };
-
- return ioctl(fd, BTRFS_IOC_DEFRAG, &data);
-}
-
-static int pack_file(FILE *pack, const char *fn, bool on_btrfs) {
- struct stat st;
- void *start = MAP_FAILED;
- uint8_t *vec;
- uint32_t b, c;
- uint64_t inode;
- size_t l, pages;
- bool mapped;
- int r = 0, fd = -1, k;
-
- assert(pack);
- assert(fn);
-
- fd = open(fn, O_RDONLY|O_CLOEXEC|O_NOATIME|O_NOCTTY|O_NOFOLLOW);
- if (fd < 0) {
-
- if (errno == ENOENT)
- return 0;
-
- if (errno == EPERM || errno == EACCES)
- return 0;
-
- log_warning("open(%s) failed: %m", fn);
- r = -errno;
- goto finish;
- }
-
- k = file_verify(fd, fn, arg_file_size_max, &st);
- if (k <= 0) {
- r = k;
- goto finish;
- }
-
- if (on_btrfs)
- btrfs_defrag(fd);
-
- l = PAGE_ALIGN(st.st_size);
- start = mmap(NULL, l, PROT_READ, MAP_SHARED, fd, 0);
- if (start == MAP_FAILED) {
- log_warning("mmap(%s) failed: %m", fn);
- r = -errno;
- goto finish;
- }
-
- pages = l / page_size();
- vec = alloca0(pages);
- if (mincore(start, l, vec) < 0) {
- log_warning("mincore(%s) failed: %m", fn);
- r = -errno;
- goto finish;
- }
-
- fputs(fn, pack);
- fputc('\n', pack);
-
- /* Store the inode, so that we notice when the file is deleted */
- inode = (uint64_t) st.st_ino;
- fwrite(&inode, sizeof(inode), 1, pack);
-
- mapped = false;
- for (c = 0; c < pages; c++) {
- bool new_mapped = !!(vec[c] & 1);
-
- if (!mapped && new_mapped)
- b = c;
- else if (mapped && !new_mapped) {
- fwrite(&b, sizeof(b), 1, pack);
- fwrite(&c, sizeof(c), 1, pack);
-
- log_debug("%s: page %u to %u", fn, b, c);
- }
-
- mapped = new_mapped;
- }
-
- /* We don't write any range data if we should read the entire file */
- if (mapped && b > 0) {
- fwrite(&b, sizeof(b), 1, pack);
- fwrite(&c, sizeof(c), 1, pack);
-
- log_debug("%s: page %u to %u", fn, b, c);
- }
-
- /* End marker */
- b = 0;
- fwrite(&b, sizeof(b), 1, pack);
- fwrite(&b, sizeof(b), 1, pack);
-
-finish:
- if (start != MAP_FAILED)
- munmap(start, l);
-
- safe_close(fd);
-
- return r;
-}
-
-static unsigned long fd_first_block(int fd) {
- struct {
- struct fiemap fiemap;
- struct fiemap_extent extent;
- } data = {
- .fiemap.fm_length = ~0ULL,
- .fiemap.fm_extent_count = 1,
- };
-
- if (ioctl(fd, FS_IOC_FIEMAP, &data) < 0)
- return 0;
-
- if (data.fiemap.fm_mapped_extents <= 0)
- return 0;
-
- if (data.fiemap.fm_extents[0].fe_flags & FIEMAP_EXTENT_UNKNOWN)
- return 0;
-
- return (unsigned long) data.fiemap.fm_extents[0].fe_physical;
-}
-
-struct item {
- const char *path;
- unsigned long block;
- unsigned long bin;
-};
-
-static int qsort_compare(const void *a, const void *b) {
- const struct item *i, *j;
-
- i = a;
- j = b;
-
- /* sort by bin first */
- if (i->bin < j->bin)
- return -1;
- if (i->bin > j->bin)
- return 1;
-
- /* then sort by sector */
- if (i->block < j->block)
- return -1;
- if (i->block > j->block)
- return 1;
-
- return strcmp(i->path, j->path);
-}
-
-static int collect(const char *root) {
- enum {
- FD_FANOTIFY, /* Get the actual fs events */
- FD_SIGNAL,
- FD_INOTIFY, /* We get notifications to quit early via this fd */
- _FD_MAX
- };
- struct pollfd pollfd[_FD_MAX] = {};
- int fanotify_fd = -1, signal_fd = -1, inotify_fd = -1, r = 0;
- pid_t my_pid;
- Hashmap *files = NULL;
- Iterator i;
- char *p, *q;
- sigset_t mask;
- FILE *pack = NULL;
- char *pack_fn_new = NULL, *pack_fn = NULL;
- bool on_ssd, on_btrfs;
- struct statfs sfs;
- usec_t not_after;
- uint64_t previous_block_readahead;
- bool previous_block_readahead_set = false;
-
- assert(root);
-
- if (asprintf(&pack_fn, "%s/.readahead", root) < 0) {
- r = log_oom();
- goto finish;
- }
-
- starttime = now(CLOCK_MONOTONIC);
-
- /* If there's no pack file yet we lower the kernel readahead
- * so that mincore() is accurate. If there is a pack file
- * already we assume it is accurate enough so that kernel
- * readahead is never triggered. */
- previous_block_readahead_set =
- access(pack_fn, F_OK) < 0 &&
- block_get_readahead(root, &previous_block_readahead) >= 0 &&
- block_set_readahead(root, 8*1024) >= 0;
-
- if (ioprio_set(IOPRIO_WHO_PROCESS, getpid(), IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0)) < 0)
- log_warning("Failed to set IDLE IO priority class: %m");
-
- assert_se(sigemptyset(&mask) == 0);
- sigset_add_many(&mask, SIGINT, SIGTERM, -1);
- assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
-
- if ((signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC)) < 0) {
- log_error("signalfd(): %m");
- r = -errno;
- goto finish;
- }
-
- files = hashmap_new(&string_hash_ops);
- if (!files) {
- log_error("Failed to allocate set.");
- r = -ENOMEM;
- goto finish;
- }
-
- fanotify_fd = fanotify_init(FAN_CLOEXEC|FAN_NONBLOCK, O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_NOATIME);
- if (fanotify_fd < 0) {
- log_error("Failed to create fanotify object: %m");
- r = -errno;
- goto finish;
- }
-
- if (fanotify_mark(fanotify_fd, FAN_MARK_ADD|FAN_MARK_MOUNT, FAN_OPEN, AT_FDCWD, root) < 0) {
- log_error("Failed to mark %s: %m", root);
- r = -errno;
- goto finish;
- }
-
- inotify_fd = open_inotify();
- if (inotify_fd < 0) {
- r = inotify_fd;
- goto finish;
- }
-
- not_after = now(CLOCK_MONOTONIC) + arg_timeout;
-
- my_pid = getpid();
-
- pollfd[FD_FANOTIFY].fd = fanotify_fd;
- pollfd[FD_FANOTIFY].events = POLLIN;
- pollfd[FD_SIGNAL].fd = signal_fd;
- pollfd[FD_SIGNAL].events = POLLIN;
- pollfd[FD_INOTIFY].fd = inotify_fd;
- pollfd[FD_INOTIFY].events = POLLIN;
-
- sd_notify(0,
- "READY=1\n"
- "STATUS=Collecting readahead data");
-
- log_debug("Collecting...");
-
- if (access("/run/systemd/readahead/cancel", F_OK) >= 0) {
- log_debug("Collection canceled");
- r = -ECANCELED;
- goto finish;
- }
-
- if (access("/run/systemd/readahead/done", F_OK) >= 0) {
- log_debug("Got termination request");
- goto done;
- }
-
- for (;;) {
- union {
- struct fanotify_event_metadata metadata;
- char buffer[4096];
- } data;
- ssize_t n;
- struct fanotify_event_metadata *m;
- usec_t t;
- int h;
-
- if (hashmap_size(files) > arg_files_max) {
- log_debug("Reached maximum number of read ahead files, ending collection.");
- break;
- }
-
- t = now(CLOCK_MONOTONIC);
- if (t >= not_after) {
- log_debug("Reached maximum collection time, ending collection.");
- break;
- }
-
- if ((h = poll(pollfd, _FD_MAX, (int) ((not_after - t) / USEC_PER_MSEC))) < 0) {
-
- if (errno == EINTR)
- continue;
-
- log_error("poll(): %m");
- r = -errno;
- goto finish;
- }
-
- if (h == 0) {
- log_debug("Reached maximum collection time, ending collection.");
- break;
- }
-
- if (pollfd[FD_SIGNAL].revents) {
- log_debug("Got signal.");
- break;
- }
-
- if (pollfd[FD_INOTIFY].revents) {
- uint8_t inotify_buffer[sizeof(struct inotify_event) + FILENAME_MAX];
- struct inotify_event *e;
-
- if ((n = read(inotify_fd, &inotify_buffer, sizeof(inotify_buffer))) < 0) {
- if (errno == EINTR || errno == EAGAIN)
- continue;
-
- log_error("Failed to read inotify event: %m");
- r = -errno;
- goto finish;
- }
-
- e = (struct inotify_event*) inotify_buffer;
- while (n > 0) {
- size_t step;
-
- if ((e->mask & IN_CREATE) && streq(e->name, "cancel")) {
- log_debug("Collection canceled");
- r = -ECANCELED;
- goto finish;
- }
-
- if ((e->mask & IN_CREATE) && streq(e->name, "done")) {
- log_debug("Got termination request");
- goto done;
- }
-
- step = sizeof(struct inotify_event) + e->len;
- assert(step <= (size_t) n);
-
- e = (struct inotify_event*) ((uint8_t*) e + step);
- n -= step;
- }
- }
-
- n = read(fanotify_fd, &data, sizeof(data));
- if (n < 0) {
-
- if (errno == EINTR || errno == EAGAIN)
- continue;
-
- /* fanotify sometimes returns EACCES on read()
- * where it shouldn't. For now let's just
- * ignore it here (which is safe), but
- * eventually this should be
- * dropped when the kernel is fixed.
- *
- * https://bugzilla.redhat.com/show_bug.cgi?id=707577 */
- if (errno == EACCES)
- continue;
-
- log_error("Failed to read event: %m");
- r = -errno;
- goto finish;
- }
-
- for (m = &data.metadata; FAN_EVENT_OK(m, n); m = FAN_EVENT_NEXT(m, n)) {
- char fn[sizeof("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
- int k;
-
- if (m->fd < 0)
- goto next_iteration;
-
- if (m->pid == my_pid)
- goto next_iteration;
-
- __sync_synchronize();
- if (m->pid == shared->replay)
- goto next_iteration;
-
- snprintf(fn, sizeof(fn), "/proc/self/fd/%i", m->fd);
- k = readlink_malloc(fn, &p);
- if (k >= 0) {
- if (startswith(p, "/tmp") ||
- endswith(p, " (deleted)") ||
- hashmap_get(files, p))
- /* Not interesting, or
- * already read */
- free(p);
- else {
- unsigned long ul;
- usec_t entrytime;
- struct item *entry;
-
- entry = new0(struct item, 1);
- if (!entry) {
- r = log_oom();
- goto finish;
- }
-
- ul = fd_first_block(m->fd);
-
- entrytime = now(CLOCK_MONOTONIC);
-
- entry->block = ul;
- entry->path = strdup(p);
- if (!entry->path) {
- free(entry);
- r = log_oom();
- goto finish;
- }
- entry->bin = (entrytime - starttime) / 2000000;
-
- k = hashmap_put(files, p, entry);
- if (k < 0) {
- log_warning("hashmap_put() failed: %s", strerror(-k));
- free(p);
- }
- }
-
- } else
- log_warning("readlink(%s) failed: %s", fn, strerror(-k));
-
- next_iteration:
- safe_close(m->fd);
- }
- }
-
-done:
- fanotify_fd = safe_close(fanotify_fd);
-
- log_debug("Writing Pack File...");
-
- on_ssd = fs_on_ssd(root) > 0;
- log_debug("On SSD: %s", yes_no(on_ssd));
-
- on_btrfs = statfs(root, &sfs) >= 0 && F_TYPE_EQUAL(sfs.f_type, BTRFS_SUPER_MAGIC);
- log_debug("On btrfs: %s", yes_no(on_btrfs));
-
- if (asprintf(&pack_fn_new, "%s/.readahead.new", root) < 0) {
- r = log_oom();
- goto finish;
- }
-
- pack = fopen(pack_fn_new, "we");
- if (!pack) {
- log_error("Failed to open pack file: %m");
- r = -errno;
- goto finish;
- }
-
- fputs(CANONICAL_HOST READAHEAD_PACK_FILE_VERSION, pack);
- putc(on_ssd ? 'S' : 'R', pack);
-
- if (on_ssd || on_btrfs) {
-
- /* On SSD or on btrfs, just write things out in the
- * order the files were accessed. */
-
- HASHMAP_FOREACH_KEY(q, p, files, i)
- pack_file(pack, p, on_btrfs);
- } else {
- unsigned n;
-
- /* On rotating media, order things by the block
- * numbers */
-
- log_debug("Ordering...");
-
- n = hashmap_size(files);
- if (n) {
- _cleanup_free_ struct item *ordered;
- struct item *j;
- unsigned k;
-
- ordered = new(struct item, n);
- if (!ordered) {
- r = log_oom();
- goto finish;
- }
-
- j = ordered;
- HASHMAP_FOREACH_KEY(q, p, files, i) {
- memcpy(j, q, sizeof(struct item));
- j++;
- }
-
- assert(ordered + n == j);
-
- qsort(ordered, n, sizeof(struct item), qsort_compare);
-
- for (k = 0; k < n; k++)
- pack_file(pack, ordered[k].path, on_btrfs);
- } else
- log_warning("No pack files");
- }
-
- log_debug("Finalizing...");
-
- fflush(pack);
-
- if (ferror(pack)) {
- log_error("Failed to write pack file.");
- r = -EIO;
- goto finish;
- }
-
- if (rename(pack_fn_new, pack_fn) < 0) {
- log_error("Failed to rename readahead file: %m");
- r = -errno;
- goto finish;
- }
-
- fclose(pack);
- pack = NULL;
-
- log_debug("Done.");
-
-finish:
- safe_close(fanotify_fd);
- safe_close(signal_fd);
- safe_close(inotify_fd);
-
- if (pack) {
- fclose(pack);
- unlink(pack_fn_new);
- }
- free(pack_fn_new);
- free(pack_fn);
-
- while ((p = hashmap_steal_first_key(files)))
- free(p);
-
- hashmap_free(files);
-
- if (previous_block_readahead_set) {
- uint64_t bytes;
-
- /* Restore the original kernel readahead setting if we
- * changed it, and nobody has overwritten it since
- * yet. */
- if (block_get_readahead(root, &bytes) >= 0 && bytes == 8*1024)
- block_set_readahead(root, previous_block_readahead);
- }
-
- return r;
-}
-
-int main_collect(const char *root) {
-
- if (!root)
- root = "/";
-
- /* Skip this step on read-only media. Note that we check the
- * underlying block device here, not he read-only flag of the
- * file system on top, since that one is most likely mounted
- * read-only anyway at boot, even if the underlying block
- * device is theoretically writable. */
- if (fs_on_read_only(root) > 0) {
- log_info("Disabling readahead collector due to read-only media.");
- return EXIT_SUCCESS;
- }
-
- if (!enough_ram()) {
- log_info("Disabling readahead collector due to low memory.");
- return EXIT_SUCCESS;
- }
-
- shared = shared_get();
- if (!shared)
- return EXIT_FAILURE;
-
- shared->collect = getpid();
- __sync_synchronize();
-
- if (collect(root) < 0)
- return EXIT_FAILURE;
-
- return EXIT_SUCCESS;
-}
diff --git a/src/readahead/readahead-common.c b/src/readahead/readahead-common.c
deleted file mode 100644
index 3ca48a7257..0000000000
--- a/src/readahead/readahead-common.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/sysinfo.h>
-#include <sys/inotify.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-#include "log.h"
-#include "readahead-common.h"
-#include "util.h"
-#include "missing.h"
-#include "fileio.h"
-#include "libudev.h"
-#include "udev-util.h"
-
-int file_verify(int fd, const char *fn, off_t file_size_max, struct stat *st) {
- assert(fd >= 0);
- assert(fn);
- assert(st);
-
- if (fstat(fd, st) < 0) {
- log_warning("fstat(%s) failed: %m", fn);
- return -errno;
- }
-
- if (!S_ISREG(st->st_mode)) {
- log_debug("Not preloading special file %s", fn);
- return 0;
- }
-
- if (st->st_size <= 0 || st->st_size > file_size_max) {
- assert_cc(sizeof(st->st_size) == 8);
- log_debug("Not preloading file %s with size out of bounds %"PRIu64,
- fn, st->st_size);
- return 0;
- }
-
- return 1;
-}
-
-int fs_on_ssd(const char *p) {
- struct stat st;
- _cleanup_udev_unref_ struct udev *udev = NULL;
- _cleanup_udev_device_unref_ struct udev_device *udev_device = NULL;
- struct udev_device *look_at = NULL;
- const char *devtype, *rotational, *model, *id;
- int r;
-
- assert(p);
-
- if (stat(p, &st) < 0)
- return -errno;
-
- if (major(st.st_dev) == 0) {
- _cleanup_fclose_ FILE *f = NULL;
- int mount_id;
- union file_handle_union h = { .handle.handle_bytes = MAX_HANDLE_SZ, };
-
- /* Might be btrfs, which exposes "ssd" as mount flag if it is on ssd.
- *
- * We first determine the mount ID here, if we can,
- * and then lookup the mount ID in mountinfo to find
- * the mount options. */
-
- r = name_to_handle_at(AT_FDCWD, p, &h.handle, &mount_id, AT_SYMLINK_FOLLOW);
- if (r < 0)
- return false;
-
- f = fopen("/proc/self/mountinfo", "re");
- if (!f)
- return false;
-
- for (;;) {
- char line[LINE_MAX], *e;
- _cleanup_free_ char *opts = NULL;
- int mid;
-
- if (!fgets(line, sizeof(line), f))
- return false;
-
- truncate_nl(line);
-
- if (sscanf(line, "%i", &mid) != 1)
- continue;
-
- if (mid != mount_id)
- continue;
-
- e = strstr(line, " - ");
- if (!e)
- continue;
-
- if (sscanf(e+3, "%*s %*s %ms", &opts) != 1)
- continue;
-
- if (streq(opts, "ssd") || startswith(opts, "ssd,") || endswith(opts, ",ssd") || strstr(opts, ",ssd,"))
- return true;
- }
-
- return false;
- }
-
- udev = udev_new();
- if (!udev)
- return -ENOMEM;
-
- udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
- if (!udev_device)
- return false;
-
- devtype = udev_device_get_property_value(udev_device, "DEVTYPE");
- if (devtype && streq(devtype, "partition"))
- look_at = udev_device_get_parent(udev_device);
- else
- look_at = udev_device;
-
- if (!look_at)
- return false;
-
- /* First, try high-level property */
- id = udev_device_get_property_value(look_at, "ID_SSD");
- if (id)
- return streq(id, "1");
-
- /* Second, try kernel attribute */
- rotational = udev_device_get_sysattr_value(look_at, "queue/rotational");
- if (rotational)
- return streq(rotational, "0");
-
- /* Finally, fallback to heuristics */
- look_at = udev_device_get_parent(look_at);
- if (!look_at)
- return false;
-
- model = udev_device_get_sysattr_value(look_at, "model");
- if (model)
- return !!strstr(model, "SSD");
-
- return false;
-}
-
-int fs_on_read_only(const char *p) {
- struct stat st;
- _cleanup_udev_unref_ struct udev *udev = NULL;
- _cleanup_udev_device_unref_ struct udev_device *udev_device = NULL;
- const char *read_only;
-
- assert(p);
-
- if (stat(p, &st) < 0)
- return -errno;
-
- if (major(st.st_dev) == 0)
- return false;
-
- udev = udev_new();
- if (!udev)
- return -ENOMEM;
-
- udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
- if (!udev_device)
- return false;
-
- read_only = udev_device_get_sysattr_value(udev_device, "ro");
- if (read_only)
- return streq(read_only, "1");
-
- return false;
-}
-
-bool enough_ram(void) {
- struct sysinfo si;
-
- assert_se(sysinfo(&si) >= 0);
-
- /* Enable readahead only with at least 128MB memory */
- return si.totalram > 127 * 1024*1024 / si.mem_unit;
-}
-
-static void mkdirs(void) {
- if (mkdir("/run/systemd", 0755) && errno != EEXIST)
- log_warning("Failed to create /run/systemd: %m");
- if (mkdir("/run/systemd/readahead", 0755) && errno != EEXIST)
- log_warning("Failed to create /run/systemd: %m");
-}
-
-int open_inotify(void) {
- int fd;
-
- fd = inotify_init1(IN_CLOEXEC|IN_NONBLOCK);
- if (fd < 0) {
- log_error("Failed to create inotify handle: %m");
- return -errno;
- }
-
- mkdirs();
-
- if (inotify_add_watch(fd, "/run/systemd/readahead", IN_CREATE) < 0) {
- log_error("Failed to watch /run/systemd/readahead: %m");
- safe_close(fd);
- return -errno;
- }
-
- return fd;
-}
-
-ReadaheadShared *shared_get(void) {
- _cleanup_close_ int fd = -1;
- ReadaheadShared *m = NULL;
-
- mkdirs();
-
- fd = open("/run/systemd/readahead/shared", O_CREAT|O_RDWR|O_CLOEXEC, 0644);
- if (fd < 0) {
- log_error("Failed to create shared memory segment: %m");
- return NULL;
- }
-
- if (ftruncate(fd, sizeof(ReadaheadShared)) < 0) {
- log_error("Failed to truncate shared memory segment: %m");
- return NULL;
- }
-
- m = mmap(NULL, sizeof(ReadaheadShared), PROT_WRITE|PROT_READ, MAP_SHARED, fd, 0);
- if (m == MAP_FAILED) {
- log_error("Failed to mmap shared memory segment: %m");
- return NULL;
- }
-
- return m;
-}
-
-/* We use 20K instead of the more human digestable 16K here. Why?
- Simply so that it is more unlikely that users end up picking this
- value too so that we can recognize better whether the user changed
- the value while we had it temporarily bumped. */
-#define BUMP_REQUEST_NR (20*1024u)
-
-int block_bump_request_nr(const char *p) {
- struct stat st;
- uint64_t u;
- char *ap = NULL, *line = NULL;
- int r;
- dev_t d;
-
- assert(p);
-
- if (stat(p, &st) < 0)
- return -errno;
-
- if (major(st.st_dev) == 0)
- return 0;
-
- d = st.st_dev;
- block_get_whole_disk(d, &d);
-
- if (asprintf(&ap, "/sys/dev/block/%u:%u/queue/nr_requests", major(d), minor(d)) < 0) {
- r= -ENOMEM;
- goto finish;
- }
-
- r = read_one_line_file(ap, &line);
- if (r < 0) {
- if (r == -ENOENT)
- r = 0;
- goto finish;
- }
-
- r = safe_atou64(line, &u);
- if (r >= 0 && u >= BUMP_REQUEST_NR) {
- r = 0;
- goto finish;
- }
-
- free(line);
- line = NULL;
-
- if (asprintf(&line, "%u", BUMP_REQUEST_NR) < 0) {
- r = -ENOMEM;
- goto finish;
- }
-
- r = write_string_file(ap, line);
- if (r < 0)
- goto finish;
-
- log_info("Bumped block_nr parameter of %u:%u to %u. This is a temporary hack and should be removed one day.", major(d), minor(d), BUMP_REQUEST_NR);
- r = 1;
-
-finish:
- free(ap);
- free(line);
-
- return r;
-}
-
-int block_get_readahead(const char *p, uint64_t *bytes) {
- struct stat st;
- char *ap = NULL, *line = NULL;
- int r;
- dev_t d;
- uint64_t u;
-
- assert(p);
- assert(bytes);
-
- if (stat(p, &st) < 0)
- return -errno;
-
- if (major(st.st_dev) == 0)
- return 0;
-
- d = st.st_dev;
- block_get_whole_disk(d, &d);
-
- if (asprintf(&ap, "/sys/dev/block/%u:%u/bdi/read_ahead_kb", major(d), minor(d)) < 0) {
- r = -ENOMEM;
- goto finish;
- }
-
- r = read_one_line_file(ap, &line);
- if (r < 0)
- goto finish;
-
- r = safe_atou64(line, &u);
- if (r < 0)
- goto finish;
-
- *bytes = u * 1024ULL;
-
-finish:
- free(ap);
- free(line);
-
- return r;
-}
-
-int block_set_readahead(const char *p, uint64_t bytes) {
- struct stat st;
- char *ap = NULL, *line = NULL;
- int r;
- dev_t d;
-
- assert(p);
- assert(bytes);
-
- if (stat(p, &st) < 0)
- return -errno;
-
- if (major(st.st_dev) == 0)
- return 0;
-
- d = st.st_dev;
- block_get_whole_disk(d, &d);
-
- if (asprintf(&ap, "/sys/dev/block/%u:%u/bdi/read_ahead_kb", major(d), minor(d)) < 0) {
- r = -ENOMEM;
- goto finish;
- }
-
- if (asprintf(&line, "%llu", bytes / 1024ULL) < 0) {
- r = -ENOMEM;
- goto finish;
- }
-
- r = write_string_file(ap, line);
- if (r < 0)
- goto finish;
-
-finish:
- free(ap);
- free(line);
-
- return r;
-}
diff --git a/src/readahead/readahead-common.h b/src/readahead/readahead-common.h
deleted file mode 100644
index b34f3aadd7..0000000000
--- a/src/readahead/readahead-common.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-#pragma once
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include "macro.h"
-#include "util.h"
-
-#define READAHEAD_FILE_SIZE_MAX (10*1024*1024)
-
-#define READAHEAD_PACK_FILE_VERSION ";VERSION=2\n"
-
-extern unsigned arg_files_max;
-extern off_t arg_file_size_max;
-extern usec_t arg_timeout;
-
-int file_verify(int fd, const char *fn, off_t file_size_max, struct stat *st);
-
-int fs_on_ssd(const char *p);
-int fs_on_read_only(const char *p);
-
-bool enough_ram(void);
-
-int open_inotify(void);
-
-typedef struct ReadaheadShared {
- pid_t collect;
- pid_t replay;
-} _packed_ ReadaheadShared;
-
-ReadaheadShared *shared_get(void);
-
-int block_bump_request_nr(const char *p);
-
-int block_get_readahead(const char *p, uint64_t *bytes);
-int block_set_readahead(const char *p, uint64_t bytes);
-
-int main_collect(const char *root);
-int main_replay(const char *root);
-int main_analyze(const char *pack_path);
diff --git a/src/readahead/readahead-replay.c b/src/readahead/readahead-replay.c
deleted file mode 100644
index f81e0fe55d..0000000000
--- a/src/readahead/readahead-replay.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <inttypes.h>
-#include <fcntl.h>
-#include <linux/limits.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/select.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <sys/inotify.h>
-
-#include "systemd/sd-daemon.h"
-
-#include "missing.h"
-#include "util.h"
-#include "set.h"
-#include "ioprio.h"
-#include "readahead-common.h"
-#include "virt.h"
-
-static ReadaheadShared *shared = NULL;
-
-static int unpack_file(FILE *pack) {
- _cleanup_close_ int fd = -1;
- char fn[PATH_MAX];
- bool any = false;
- struct stat st;
- uint64_t inode;
-
- assert(pack);
-
- if (!fgets(fn, sizeof(fn), pack))
- return 0;
-
- char_array_0(fn);
- truncate_nl(fn);
-
- fd = open(fn, O_RDONLY|O_CLOEXEC|O_NOATIME|O_NOCTTY|O_NOFOLLOW);
- if (fd < 0) {
- if (errno != ENOENT && errno != EPERM && errno != EACCES && errno != ELOOP)
- log_warning("open(%s) failed: %m", fn);
-
- } else if (file_verify(fd, fn, arg_file_size_max, &st) <= 0)
- fd = safe_close(fd);
-
- if (fread(&inode, sizeof(inode), 1, pack) != 1) {
- log_error("Premature end of pack file.");
- return -EIO;
- }
-
- if (fd >= 0) {
- /* If the inode changed the file got deleted, so just
- * ignore this entry */
- if (st.st_ino != (uint64_t) inode)
- fd = safe_close(fd);
- }
-
- for (;;) {
- uint32_t b, c;
-
- if (fread(&b, sizeof(b), 1, pack) != 1 ||
- fread(&c, sizeof(c), 1, pack) != 1) {
- log_error("Premature end of pack file.");
- return -EIO;
- }
-
- if (b == 0 && c == 0)
- break;
-
- if (c <= b) {
- log_error("Invalid pack file.");
- return -EIO;
- }
-
- log_debug("%s: page %u to %u", fn, b, c);
-
- any = true;
-
- if (fd >= 0) {
- if (posix_fadvise(fd, b * page_size(), (c - b) * page_size(), POSIX_FADV_WILLNEED) < 0) {
- log_warning("posix_fadvise() failed: %m");
- return -errno;
- }
- }
- }
-
- if (!any && fd >= 0) {
- /* if no range is encoded in the pack file this is
- * intended to mean that the whole file shall be
- * read */
-
- if (posix_fadvise(fd, 0, st.st_size, POSIX_FADV_WILLNEED) < 0) {
- log_warning("posix_fadvise() failed: %m");
- return -errno;
- }
- }
-
- return 0;
-}
-
-static int replay(const char *root) {
- _cleanup_close_ int inotify_fd = -1;
- _cleanup_free_ char *pack_fn = NULL;
- _cleanup_fclose_ FILE *pack = NULL;
- bool on_ssd, ready = false;
- char line[LINE_MAX];
- int prio, c;
-
- assert(root);
-
- block_bump_request_nr(root);
-
- if (asprintf(&pack_fn, "%s/.readahead", root) < 0)
- return log_oom();
-
- pack = fopen(pack_fn, "re");
- if (!pack) {
- if (errno == ENOENT) {
- log_debug("No pack file found.");
- return 0;
- }
-
- log_error("Failed to open pack file: %m");
- return -errno;
- }
-
- posix_fadvise(fileno(pack), 0, 0, POSIX_FADV_WILLNEED);
-
- inotify_fd = open_inotify();
- if (inotify_fd < 0)
- return inotify_fd;
-
- if (!fgets(line, sizeof(line), pack)) {
- log_error("Premature end of pack file.");
- return -EIO;
- }
-
- char_array_0(line);
-
- if (!streq(line, CANONICAL_HOST READAHEAD_PACK_FILE_VERSION)) {
- log_debug("Pack file host or version type mismatch.");
- goto done;
- }
-
- c = getc(pack);
- if (c == EOF) {
- log_debug("Premature end of pack file.");
- return -EIO;
- }
-
- /* We do not retest SSD here, so that we can start replaying
- * before udev is up.*/
- on_ssd = c == 'S';
- log_debug("On SSD: %s", yes_no(on_ssd));
-
- if (on_ssd)
- prio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0);
- else
- /* We are not using RT here, since we'd starve IO that
- we didn't record (which is for example blkid, since
- its disk accesses go directly to the block device and
- are thus not visible in fallocate) to death. However,
- we do ask for an IO prio that is slightly higher than
- the default (which is BE. 4) */
- prio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 2);
-
- if (ioprio_set(IOPRIO_WHO_PROCESS, getpid(), prio) < 0)
- log_warning("Failed to set IDLE IO priority class: %m");
-
- sd_notify(0, "STATUS=Replaying readahead data");
-
- log_debug("Replaying...");
-
- if (access("/run/systemd/readahead/noreplay", F_OK) >= 0) {
- log_debug("Got termination request");
- goto done;
- }
-
- while (!feof(pack) && !ferror(pack)) {
- uint8_t inotify_buffer[sizeof(struct inotify_event) + FILENAME_MAX];
- int k;
- ssize_t n;
-
- n = read(inotify_fd, &inotify_buffer, sizeof(inotify_buffer));
- if (n < 0) {
- if (errno != EINTR && errno != EAGAIN) {
- log_error("Failed to read inotify event: %m");
- return -errno;
- }
- } else {
- struct inotify_event *e = (struct inotify_event*) inotify_buffer;
-
- while (n > 0) {
- size_t step;
-
- if ((e->mask & IN_CREATE) && streq(e->name, "noreplay")) {
- log_debug("Got termination request");
- goto done;
- }
-
- step = sizeof(struct inotify_event) + e->len;
- assert(step <= (size_t) n);
-
- e = (struct inotify_event*) ((uint8_t*) e + step);
- n -= step;
- }
- }
-
- k = unpack_file(pack);
- if (k < 0)
- return k;
-
- if (!ready) {
- /* We delay the ready notification until we
- * queued at least one read */
- sd_notify(0, "READY=1");
- ready = true;
- }
- }
-
-done:
- if (ferror(pack)) {
- log_error("Failed to read pack file.");
- return -EIO;
- }
-
- if (!ready)
- sd_notify(0, "READY=1");
-
- log_debug("Done.");
- return 0;
-}
-
-int main_replay(const char *root) {
-
- if (!root)
- root = "/";
-
- if (!enough_ram()) {
- log_info("Disabling readahead replay due to low memory.");
- return EXIT_SUCCESS;
- }
-
- shared = shared_get();
- if (!shared)
- return EXIT_FAILURE;
-
- shared->replay = getpid();
- __sync_synchronize();
-
- if (replay(root) < 0)
- return EXIT_FAILURE;
-
- return EXIT_SUCCESS;
-}
diff --git a/src/readahead/readahead.c b/src/readahead/readahead.c
deleted file mode 100644
index 35176e9379..0000000000
--- a/src/readahead/readahead.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2012 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdio.h>
-#include <getopt.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-
-#include "util.h"
-#include "def.h"
-#include "build.h"
-#include "readahead-common.h"
-
-unsigned arg_files_max = 16*1024;
-off_t arg_file_size_max = READAHEAD_FILE_SIZE_MAX;
-usec_t arg_timeout = 2*USEC_PER_MINUTE;
-
-static void help(void) {
- printf("%1$s [OPTIONS...] collect [DIRECTORY]\n\n"
- "Collect read-ahead data on early boot.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " --files-max=INT Maximum number of files to read ahead\n"
- " --file-size-max=BYTES Maximum size of files to read ahead\n"
- " --timeout=USEC Maximum time to spend collecting data\n"
- "\n\n"
- "%1$s [OPTIONS...] replay [DIRECTORY]\n\n"
- "Replay collected read-ahead data on early boot.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " --file-size-max=BYTES Maximum size of files to read ahead\n"
- "\n\n"
- "%1$s [OPTIONS...] analyze [PACK-FILE]\n\n"
- "Analyze collected read-ahead data.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n",
- program_invocation_short_name);
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_VERSION = 0x100,
- ARG_FILES_MAX,
- ARG_FILE_SIZE_MAX,
- ARG_TIMEOUT
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "files-max", required_argument, NULL, ARG_FILES_MAX },
- { "file-size-max", required_argument, NULL, ARG_FILE_SIZE_MAX },
- { "timeout", required_argument, NULL, ARG_TIMEOUT },
- {}
- };
-
- int c;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
-
- switch (c) {
-
- case 'h':
- help();
- return 0;
-
- case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0;
-
- case ARG_FILES_MAX:
- if (safe_atou(optarg, &arg_files_max) < 0 || arg_files_max <= 0) {
- log_error("Failed to parse maximum number of files %s.", optarg);
- return -EINVAL;
- }
- break;
-
- case ARG_FILE_SIZE_MAX: {
- unsigned long long ull;
-
- if (safe_atollu(optarg, &ull) < 0 || ull <= 0) {
- log_error("Failed to parse maximum file size %s.", optarg);
- return -EINVAL;
- }
-
- arg_file_size_max = (off_t) ull;
- break;
- }
-
- case ARG_TIMEOUT:
- if (parse_sec(optarg, &arg_timeout) < 0 || arg_timeout <= 0) {
- log_error("Failed to parse timeout %s.", optarg);
- return -EINVAL;
- }
-
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unhandled option");
- }
-
- if (optind != argc-1 &&
- optind != argc-2) {
- log_error("%s: wrong number of arguments.",
- program_invocation_short_name);
- return -EINVAL;
- }
-
- return 1;
-}
-
-int main(int argc, char *argv[]) {
- int r;
-
- log_set_target(LOG_TARGET_SAFE);
- log_parse_environment();
- log_open();
-
- umask(0022);
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-
- if (streq(argv[optind], "collect"))
- return main_collect(argv[optind+1]);
- else if (streq(argv[optind], "replay"))
- return main_replay(argv[optind+1]);
- else if (streq(argv[optind], "analyze"))
- return main_analyze(argv[optind+1]);
-
- log_error("Unknown verb %s.", argv[optind]);
- return EXIT_FAILURE;
-}
diff --git a/src/readahead/sd-readahead.c b/src/readahead/sd-readahead.c
deleted file mode 100644
index 675d82cdd1..0000000000
--- a/src/readahead/sd-readahead.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- Copyright 2010 Lennart Poettering
-
- Permission is hereby granted, free of charge, to any person
- obtaining a copy of this software and associated documentation files
- (the "Software"), to deal in the Software without restriction,
- including without limitation the rights to use, copy, modify, merge,
- publish, distribute, sublicense, and/or sell copies of the Software,
- and to permit persons to whom the Software is furnished to do so,
- subject to the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- SOFTWARE.
-***/
-
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE
-#endif
-
-#include <unistd.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <string.h>
-
-#include "sd-readahead.h"
-
-#if (__GNUC__ >= 4)
-# ifdef SD_EXPORT_SYMBOLS
-/* Export symbols */
-# define _sd_export_ __attribute__ ((visibility("default")))
-# else
-/* Don't export the symbols */
-# define _sd_export_ __attribute__ ((visibility("hidden")))
-# endif
-#else
-# define _sd_export_
-#endif
-
-static int touch(const char *path) {
-
-#if !defined(DISABLE_SYSTEMD) && defined(__linux__)
- int fd;
-
- mkdir("/run/systemd", 0755);
- mkdir("/run/systemd/readahead", 0755);
-
- fd = open(path, O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY, 0666);
- if (fd < 0)
- return -errno;
-
- for (;;) {
- if (close(fd) >= 0)
- break;
-
- if (errno != EINTR)
- return -errno;
- }
-
-#endif
- return 0;
-}
-
-_sd_export_ int sd_readahead(const char *action) {
-
- if (!action)
- return -EINVAL;
-
- if (strcmp(action, "cancel") == 0)
- return touch("/run/systemd/readahead/cancel");
- else if (strcmp(action, "done") == 0)
- return touch("/run/systemd/readahead/done");
- else if (strcmp(action, "noreplay") == 0)
- return touch("/run/systemd/readahead/noreplay");
-
- return -EINVAL;
-}
diff --git a/src/readahead/test-ssd.c b/src/readahead/test-ssd.c
deleted file mode 100644
index 808faf359c..0000000000
--- a/src/readahead/test-ssd.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2014 Zbigniew Jędrzejewski-Szmek
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "readahead-common.h"
-
-int main(int argc, char *argv[]) {
- int i;
-
- for (i = 1; i < argc; i++) {
- char *name = argv[i];
- int r;
-
- r = fs_on_ssd(name);
- if (r < 0) {
- log_error("%s: %s", name, strerror(-r));
- return EXIT_FAILURE;
- }
-
- log_info("%s: %s", name, r ? "SSD" : "---");
- }
-
- return EXIT_SUCCESS;
-}
diff --git a/src/systemd/sd-readahead.h b/src/systemd/sd-readahead.h
deleted file mode 100644
index bb30f9a45e..0000000000
--- a/src/systemd/sd-readahead.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-#ifndef foosdreadaheadhfoo
-#define foosdreadaheadhfoo
-
-/***
- Copyright 2010 Lennart Poettering
-
- Permission is hereby granted, free of charge, to any person
- obtaining a copy of this software and associated documentation files
- (the "Software"), to deal in the Software without restriction,
- including without limitation the rights to use, copy, modify, merge,
- publish, distribute, sublicense, and/or sell copies of the Software,
- and to permit persons to whom the Software is furnished to do so,
- subject to the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- SOFTWARE.
-***/
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- Reference implementation of a few boot read-ahead-related
- interfaces. These interfaces are trivial to implement. To simplify
- porting, we provide this reference implementation. Applications are
- welcome to reimplement the algorithms described here if they do not
- want to include these two source files.
-
- You may compile this with -DDISABLE_SYSTEMD to disable systemd
- support. This makes all calls NOPs.
-
- Because this is drop-in code, we don't want any of our symbols to be
- exported in any case. Hence, we declare hidden visibility for all of
- them.
-
- You may find an up-to-date version of these source files online:
-
- http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-readahead.h
- http://cgit.freedesktop.org/systemd/systemd/plain/src/readahead/sd-readahead.c
-
- This should compile on non-Linux systems too, but all functions
- will become NOPs.
-
- See sd-readahead(3) for more information.
-*/
-
-/*
- Controls on-going disk read-ahead operations during boot-up. The argument
- must be one of the following strings: "cancel", "done", or "noreplay".
-
- cancel = terminate read-ahead data collection, and drop collected information
- done = terminate read-ahead data collection, and keep collected information
- noreplay = terminate read-ahead replay
-*/
-int sd_readahead(const char *action);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/system-preset/90-systemd.preset b/system-preset/90-systemd.preset
index e4a9e17cb7..ada9dbbf4f 100644
--- a/system-preset/90-systemd.preset
+++ b/system-preset/90-systemd.preset
@@ -10,7 +10,6 @@
enable remote-fs.target
enable getty@.service
-enable systemd-readahead-*
enable systemd-timesyncd.service
enable systemd-networkd.service
enable systemd-resolved.service
diff --git a/units/.gitignore b/units/.gitignore
index ab1d97da54..a1276e5b61 100644
--- a/units/.gitignore
+++ b/units/.gitignore
@@ -47,9 +47,6 @@
/systemd-poweroff.service
/systemd-quotacheck.service
/systemd-random-seed.service
-/systemd-readahead-collect.service
-/systemd-readahead-done.service
-/systemd-readahead-replay.service
/systemd-reboot.service
/systemd-remount-fs.service
/systemd-resolved.service
diff --git a/units/ldconfig.service b/units/ldconfig.service
index 43c145b726..f9691e2f2d 100644
--- a/units/ldconfig.service
+++ b/units/ldconfig.service
@@ -10,7 +10,7 @@ Description=Rebuild Dynamic Linker Cache
Documentation=man:ldconfig(8)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service
+After=systemd-remount-fs.service
Before=sysinit.target shutdown.target systemd-update-done.service
ConditionNeedsUpdate=/etc
diff --git a/units/quotaon.service.in b/units/quotaon.service.in
index 49a50a7feb..7d59a40195 100644
--- a/units/quotaon.service.in
+++ b/units/quotaon.service.in
@@ -9,7 +9,7 @@
Description=Enable File System Quotas
Documentation=man:quotaon(8)
DefaultDependencies=no
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-quotacheck.service
+After=systemd-quotacheck.service
Before=local-fs.target shutdown.target
ConditionPathExists=@QUOTAON@
diff --git a/units/system-update.target b/units/system-update.target
index d0f847f957..48d46fcbda 100644
--- a/units/system-update.target
+++ b/units/system-update.target
@@ -10,7 +10,7 @@ Description=System Update
Documentation=http://freedesktop.org/wiki/Software/systemd/SystemUpdates
Documentation=man:systemd.special(7) man:systemd-system-update-generator(8)
Requires=sysinit.target
-Conflicts=shutdown.target systemd-readahead-collect.service systemd-readahead-replay.service
+Conflicts=shutdown.target
After=sysinit.target
Before=shutdown.target
AllowIsolate=yes
diff --git a/units/systemd-backlight@.service.in b/units/systemd-backlight@.service.in
index e945d8733f..ecf3de48d7 100644
--- a/units/systemd-backlight@.service.in
+++ b/units/systemd-backlight@.service.in
@@ -11,7 +11,7 @@ Documentation=man:systemd-backlight@.service(8)
DefaultDependencies=no
RequiresMountsFor=/var/lib/systemd/backlight
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service
+After=systemd-remount-fs.service
Before=sysinit.target shutdown.target
[Service]
diff --git a/units/systemd-binfmt.service.in b/units/systemd-binfmt.service.in
index 02dfe774df..34a5d5237b 100644
--- a/units/systemd-binfmt.service.in
+++ b/units/systemd-binfmt.service.in
@@ -11,7 +11,7 @@ Documentation=man:systemd-binfmt.service(8) man:binfmt.d(5)
Documentation=https://www.kernel.org/doc/Documentation/binfmt_misc.txt
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service proc-sys-fs-binfmt_misc.automount
+After=proc-sys-fs-binfmt_misc.automount
Before=sysinit.target shutdown.target
ConditionPathIsReadWrite=/proc/sys/
ConditionDirectoryNotEmpty=|/lib/binfmt.d
diff --git a/units/systemd-firstboot.service.in b/units/systemd-firstboot.service.in
index 6cdde5b82d..7a448ac936 100644
--- a/units/systemd-firstboot.service.in
+++ b/units/systemd-firstboot.service.in
@@ -10,7 +10,7 @@ Description=First Boot Wizard
Documentation=man:systemd-firstboot(1)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service systemd-sysusers.service
+After=systemd-remount-fs.service systemd-sysusers.service
Before=sysinit.target shutdown.target
ConditionPathIsReadWrite=/etc
ConditionFirstBoot=yes
diff --git a/units/systemd-fsck-root.service.in b/units/systemd-fsck-root.service.in
index 26cce5131e..6d7657853e 100644
--- a/units/systemd-fsck-root.service.in
+++ b/units/systemd-fsck-root.service.in
@@ -9,7 +9,6 @@
Description=File System Check on Root Device
Documentation=man:systemd-fsck-root.service(8)
DefaultDependencies=no
-After=systemd-readahead-collect.service systemd-readahead-replay.service
Before=local-fs.target shutdown.target
ConditionPathIsReadWrite=!/
diff --git a/units/systemd-fsck@.service.in b/units/systemd-fsck@.service.in
index d2cda6a466..857e625679 100644
--- a/units/systemd-fsck@.service.in
+++ b/units/systemd-fsck@.service.in
@@ -10,7 +10,7 @@ Description=File System Check on %f
Documentation=man:systemd-fsck@.service(8)
DefaultDependencies=no
BindsTo=%i.device
-After=systemd-readahead-collect.service systemd-readahead-replay.service %i.device systemd-fsck-root.service local-fs-pre.target
+After=%i.device systemd-fsck-root.service local-fs-pre.target
Before=shutdown.target
[Service]
diff --git a/units/systemd-journal-catalog-update.service.in b/units/systemd-journal-catalog-update.service.in
index 0cb7076f12..bfa5e6b435 100644
--- a/units/systemd-journal-catalog-update.service.in
+++ b/units/systemd-journal-catalog-update.service.in
@@ -10,7 +10,7 @@ Description=Rebuild Journal Catalog
Documentation=man:systemd-journald.service(8) man:journald.conf(5)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service local-fs.target
+After=local-fs.target
Before=sysinit.target shutdown.target systemd-update-done.service
ConditionNeedsUpdate=/etc
diff --git a/units/systemd-modules-load.service.in b/units/systemd-modules-load.service.in
index 32deb52e26..040a0febe8 100644
--- a/units/systemd-modules-load.service.in
+++ b/units/systemd-modules-load.service.in
@@ -10,7 +10,6 @@ Description=Load Kernel Modules
Documentation=man:systemd-modules-load.service(8) man:modules-load.d(5)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service
Before=sysinit.target shutdown.target
ConditionCapability=CAP_SYS_MODULE
ConditionDirectoryNotEmpty=|/lib/modules-load.d
diff --git a/units/systemd-quotacheck.service.in b/units/systemd-quotacheck.service.in
index f726ea1bcd..5cb9bc3bc9 100644
--- a/units/systemd-quotacheck.service.in
+++ b/units/systemd-quotacheck.service.in
@@ -9,7 +9,7 @@
Description=File System Quota Check
Documentation=man:systemd-quotacheck.service(8)
DefaultDependencies=no
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service
+After=systemd-remount-fs.service
Before=local-fs.target shutdown.target
ConditionPathExists=@QUOTACHECK@
diff --git a/units/systemd-random-seed.service.in b/units/systemd-random-seed.service.in
index 1879b2f24c..b55844b36f 100644
--- a/units/systemd-random-seed.service.in
+++ b/units/systemd-random-seed.service.in
@@ -11,7 +11,7 @@ Documentation=man:systemd-random-seed.service(8) man:random(4)
DefaultDependencies=no
RequiresMountsFor=@RANDOM_SEED@
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service
+After=systemd-remount-fs.service
Before=sysinit.target shutdown.target
[Service]
diff --git a/units/systemd-readahead-collect.service.in b/units/systemd-readahead-collect.service.in
deleted file mode 100644
index d4b8e67932..0000000000
--- a/units/systemd-readahead-collect.service.in
+++ /dev/null
@@ -1,28 +0,0 @@
-# This file is part of systemd.
-#
-# systemd is free software; you can redistribute it and/or modify it
-# under the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation; either version 2.1 of the License, or
-# (at your option) any later version.
-
-[Unit]
-Description=Collect Read-Ahead Data
-Documentation=man:systemd-readahead-replay.service(8)
-DefaultDependencies=no
-Wants=systemd-readahead-done.timer
-Conflicts=shutdown.target
-Before=sysinit.target shutdown.target
-ConditionPathExists=!/run/systemd/readahead/cancel
-ConditionPathExists=!/run/systemd/readahead/done
-ConditionVirtualization=no
-
-[Service]
-Type=notify
-ExecStart=@rootlibexecdir@/systemd-readahead collect
-RemainAfterExit=yes
-StandardOutput=null
-OOMScoreAdjust=1000
-
-[Install]
-WantedBy=default.target
-Also=systemd-readahead-drop.service
diff --git a/units/systemd-readahead-done.service.in b/units/systemd-readahead-done.service.in
deleted file mode 100644
index e0d9579449..0000000000
--- a/units/systemd-readahead-done.service.in
+++ /dev/null
@@ -1,22 +0,0 @@
-# This file is part of systemd.
-#
-# systemd is free software; you can redistribute it and/or modify it
-# under the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation; either version 2.1 of the License, or
-# (at your option) any later version.
-
-[Unit]
-Description=Stop Read-Ahead Data Collection
-Documentation=man:systemd-readahead-replay.service(8)
-DefaultDependencies=no
-Conflicts=shutdown.target
-After=default.target
-Before=shutdown.target
-ConditionVirtualization=no
-
-[Service]
-Type=oneshot
-ExecStart=@SYSTEMD_NOTIFY@ --readahead=done
-
-[Install]
-Also=systemd-readahead-collect.service
diff --git a/units/systemd-readahead-done.timer b/units/systemd-readahead-done.timer
deleted file mode 100644
index c58e09616e..0000000000
--- a/units/systemd-readahead-done.timer
+++ /dev/null
@@ -1,22 +0,0 @@
-# This file is part of systemd.
-#
-# systemd is free software; you can redistribute it and/or modify it
-# under the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation; either version 2.1 of the License, or
-# (at your option) any later version.
-
-[Unit]
-Description=Stop Read-Ahead Data Collection 10s After Completed Startup
-Documentation=man:systemd-readahead-replay.service(8)
-DefaultDependencies=no
-Conflicts=shutdown.target
-After=default.target
-Before=shutdown.target
-ConditionVirtualization=no
-
-[Timer]
-OnActiveSec=30s
-AccuracySec=1s
-
-[Install]
-Also=systemd-readahead-collect.service
diff --git a/units/systemd-readahead-drop.service b/units/systemd-readahead-drop.service
deleted file mode 100644
index d9d12bc533..0000000000
--- a/units/systemd-readahead-drop.service
+++ /dev/null
@@ -1,19 +0,0 @@
-# This file is part of systemd.
-#
-# systemd is free software; you can redistribute it and/or modify it
-# under the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation; either version 2.1 of the License, or
-# (at your option) any later version.
-
-[Unit]
-Description=Drop Read-Ahead Data
-Documentation=man:systemd-readahead-replay.service(8)
-ConditionPathExists=/.readahead
-
-[Service]
-Type=oneshot
-ExecStart=/bin/rm -f /.readahead
-
-[Install]
-WantedBy=system-update.target
-Also=systemd-readahead-collect.service
diff --git a/units/systemd-readahead-replay.service.in b/units/systemd-readahead-replay.service.in
deleted file mode 100644
index c64a533e4e..0000000000
--- a/units/systemd-readahead-replay.service.in
+++ /dev/null
@@ -1,26 +0,0 @@
-# This file is part of systemd.
-#
-# systemd is free software; you can redistribute it and/or modify it
-# under the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation; either version 2.1 of the License, or
-# (at your option) any later version.
-
-[Unit]
-Description=Replay Read-Ahead Data
-Documentation=man:systemd-readahead-replay.service(8)
-DefaultDependencies=no
-Conflicts=shutdown.target
-Before=sysinit.target shutdown.target
-ConditionPathExists=!/run/systemd/readahead/noreplay
-ConditionPathExists=/.readahead
-ConditionVirtualization=no
-
-[Service]
-Type=notify
-ExecStart=@rootlibexecdir@/systemd-readahead replay
-RemainAfterExit=yes
-StandardOutput=null
-OOMScoreAdjust=1000
-
-[Install]
-WantedBy=default.target
diff --git a/units/systemd-remount-fs.service.in b/units/systemd-remount-fs.service.in
index 70e1a8680a..8d9daacaa5 100644
--- a/units/systemd-remount-fs.service.in
+++ b/units/systemd-remount-fs.service.in
@@ -11,7 +11,7 @@ Documentation=man:systemd-remount-fs.service(8)
Documentation=http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-fsck-root.service
+After=systemd-fsck-root.service
Before=local-fs-pre.target local-fs.target shutdown.target
Wants=local-fs-pre.target
ConditionPathExists=/etc/fstab
diff --git a/units/systemd-rfkill@.service.in b/units/systemd-rfkill@.service.in
index 9d264a2bca..0e9851bf2e 100644
--- a/units/systemd-rfkill@.service.in
+++ b/units/systemd-rfkill@.service.in
@@ -11,7 +11,7 @@ Documentation=man:systemd-rfkill@.service(8)
DefaultDependencies=no
RequiresMountsFor=/var/lib/systemd/rfkill
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service
+After=systemd-remount-fs.service
Before=sysinit.target shutdown.target
[Service]
diff --git a/units/systemd-sysctl.service.in b/units/systemd-sysctl.service.in
index ade9dc3007..fa72085f9e 100644
--- a/units/systemd-sysctl.service.in
+++ b/units/systemd-sysctl.service.in
@@ -10,7 +10,6 @@ Description=Apply Kernel Variables
Documentation=man:systemd-sysctl.service(8) man:sysctl.d(5)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service
After=systemd-modules-load.service
Before=sysinit.target shutdown.target
ConditionPathIsReadWrite=/proc/sys/
diff --git a/units/systemd-sysusers.service.in b/units/systemd-sysusers.service.in
index 69fea11fb1..ffd6d7747b 100644
--- a/units/systemd-sysusers.service.in
+++ b/units/systemd-sysusers.service.in
@@ -10,7 +10,7 @@ Description=Create System Users
Documentation=man:sysusers.d(5) man:systemd-sysusers.service(8)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service
+After=systemd-remount-fs.service
Before=sysinit.target shutdown.target systemd-update-done.service
ConditionNeedsUpdate=/etc
diff --git a/units/systemd-tmpfiles-clean.service.in b/units/systemd-tmpfiles-clean.service.in
index 31b2378410..133c8c94c4 100644
--- a/units/systemd-tmpfiles-clean.service.in
+++ b/units/systemd-tmpfiles-clean.service.in
@@ -10,7 +10,7 @@ Description=Cleanup of Temporary Directories
Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service local-fs.target time-sync.target
+After=local-fs.target time-sync.target
Before=shutdown.target
[Service]
diff --git a/units/systemd-tmpfiles-setup-dev.service.in b/units/systemd-tmpfiles-setup-dev.service.in
index 06346d3b7c..f3833fdfd5 100644
--- a/units/systemd-tmpfiles-setup-dev.service.in
+++ b/units/systemd-tmpfiles-setup-dev.service.in
@@ -10,7 +10,7 @@ Description=Create Static Device Nodes in /dev
Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-sysusers.service
+After=systemd-sysusers.service
Before=sysinit.target local-fs-pre.target systemd-udevd.service shutdown.target
ConditionCapability=CAP_SYS_MODULE
diff --git a/units/systemd-tmpfiles-setup.service.in b/units/systemd-tmpfiles-setup.service.in
index 72ab083d54..e895cda0e6 100644
--- a/units/systemd-tmpfiles-setup.service.in
+++ b/units/systemd-tmpfiles-setup.service.in
@@ -10,7 +10,7 @@ Description=Create Volatile Files and Directories
Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service local-fs.target systemd-sysusers.service
+After=local-fs.target systemd-sysusers.service
Before=sysinit.target shutdown.target
RefuseManualStop=yes
diff --git a/units/systemd-udev-hwdb-update.service.in b/units/systemd-udev-hwdb-update.service.in
index 153d93c7e5..cdbcd837cd 100644
--- a/units/systemd-udev-hwdb-update.service.in
+++ b/units/systemd-udev-hwdb-update.service.in
@@ -10,7 +10,7 @@ Description=Rebuild Hardware Database
Documentation=man:udev(7) man:systemd-udevd.service(8)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service
+After=systemd-remount-fs.service
Before=sysinit.target shutdown.target systemd-update-done.service
ConditionNeedsUpdate=/etc
diff --git a/units/systemd-update-done.service.in b/units/systemd-update-done.service.in
index 7031bff614..ec7d906392 100644
--- a/units/systemd-update-done.service.in
+++ b/units/systemd-update-done.service.in
@@ -10,7 +10,7 @@ Description=Update is Completed
Documentation=man:systemd-update-done.service(8)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service local-fs.target
+After=local-fs.target
Before=sysinit.target shutdown.target
ConditionNeedsUpdate=|/etc
ConditionNeedsUpdate=|/var
diff --git a/units/systemd-update-utmp.service.in b/units/systemd-update-utmp.service.in
index da7dda76ba..163eccd91f 100644
--- a/units/systemd-update-utmp.service.in
+++ b/units/systemd-update-utmp.service.in
@@ -11,7 +11,7 @@ Documentation=man:systemd-update-utmp.service(8) man:utmp(5)
DefaultDependencies=no
RequiresMountsFor=/var/log/wtmp
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-remount-fs.service systemd-tmpfiles-setup.service auditd.service
+After=systemd-remount-fs.service systemd-tmpfiles-setup.service auditd.service
Before=sysinit.target shutdown.target
[Service]
diff --git a/units/systemd-vconsole-setup.service.in b/units/systemd-vconsole-setup.service.in
index 18faa63f28..6160361871 100644
--- a/units/systemd-vconsole-setup.service.in
+++ b/units/systemd-vconsole-setup.service.in
@@ -10,7 +10,6 @@ Description=Setup Virtual Console
Documentation=man:systemd-vconsole-setup.service(8) man:vconsole.conf(5)
DefaultDependencies=no
Conflicts=shutdown.target
-After=systemd-readahead-collect.service systemd-readahead-replay.service
Before=sysinit.target shutdown.target
ConditionPathExists=/dev/tty0
Reference in New Issue Copy Permalink