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Date: Tue, 13 Mar 2018 16:33:20 -0700
From: "Darrick J. Wong" <darrick.wong@...cle.com>
To: Lukas Czerner <lczerner@...hat.com>
Cc: tytso@....edu, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 4/4] e2scrub: add service (cron, systemd) support
On Tue, Mar 13, 2018 at 07:29:53AM +0100, Lukas Czerner wrote:
> On Mon, Mar 12, 2018 at 09:14:59AM -0700, Darrick J. Wong wrote:
> > From: Darrick J. Wong <darrick.wong@...cle.com>
> >
> > Add the ability to run the e2scrub utilities as a periodically scheduled
> > system service.
>
> comment bellow
>
> >
> > Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
> > ---
> > MCONFIG.in | 5 +
> > configure | 179 ++++++++++++++++++++++++++++++++++++++++
> > configure.ac | 74 ++++++++++++++++-
> > debian/e2fsprogs.files | 3 +
> > debian/e2fsprogs.postinst | 19 ++++
> > debian/e2fsprogs.postrm | 35 ++++++++
> > scrub/Makefile.in | 90 ++++++++++++++++++++
> > scrub/e2scrub.in | 38 +++++++-
> > scrub/e2scrub@...rvice.in | 20 ++++
> > scrub/e2scrub_all.cron.in | 2
> > scrub/e2scrub_all.in | 38 ++++++++
> > scrub/e2scrub_all.service.in | 10 ++
> > scrub/e2scrub_all.timer.in | 11 ++
> > scrub/e2scrub_all_cron.in | 68 +++++++++++++++
> > scrub/e2scrub_fail.in | 25 ++++++
> > scrub/e2scrub_fail@...rvice.in | 10 ++
> > scrub/e2scrub_reap.in | 48 +++++++++++
> > scrub/e2scrub_reap.service.in | 21 +++++
> > util/subst.conf.in | 3 +
> > 19 files changed, 684 insertions(+), 15 deletions(-)
> > create mode 100644 debian/e2fsprogs.postrm
> > create mode 100644 scrub/e2scrub@...rvice.in
> > create mode 100644 scrub/e2scrub_all.cron.in
> > create mode 100644 scrub/e2scrub_all.service.in
> > create mode 100644 scrub/e2scrub_all.timer.in
> > create mode 100644 scrub/e2scrub_all_cron.in
> > create mode 100644 scrub/e2scrub_fail.in
> > create mode 100644 scrub/e2scrub_fail@...rvice.in
> > create mode 100644 scrub/e2scrub_reap.in
> > create mode 100644 scrub/e2scrub_reap.service.in
> >
> >
> > diff --git a/MCONFIG.in b/MCONFIG.in
> > index adeb5bd..ee83554 100644
> > --- a/MCONFIG.in
> > +++ b/MCONFIG.in
> > @@ -32,9 +32,14 @@ man8dir = $(mandir)/man8
> > infodir = @infodir@
> > datadir = @datadir@
> > pkgconfigdir = $(libdir)/pkgconfig
> > +pkglibdir = $(libdir)/e2fsprogs
> >
> > HAVE_UDEV = @have_udev@
> > UDEV_RULES_DIR = @pkg_udev_rules_dir@
> > +HAVE_CROND = @have_crond@
> > +CROND_DIR = @crond_dir@
> > +HAVE_SYSTEMD = @have_systemd@
> > +SYSTEMD_SYSTEM_UNIT_DIR = @systemd_system_unit_dir@
> >
> > @SET_MAKE@
> >
> > diff --git a/configure b/configure
> > index 986e057..f6a0dea 100755
> > --- a/configure
> > +++ b/configure
> > @@ -625,6 +625,12 @@ gl_use_threads_default=
> > ac_func_list=
> > ac_subst_vars='LTLIBOBJS
> > LIBOBJS
> > +systemd_system_unit_dir
> > +have_systemd
> > +systemd_LIBS
> > +systemd_CFLAGS
> > +crond_dir
> > +have_crond
> > pkg_udev_rules_dir
> > have_udev
> > udev_LIBS
> > @@ -899,6 +905,8 @@ with_libintl_prefix
> > enable_fuse2fs
> > with_multiarch
> > with_udev_rules_dir
> > +with_crond_dir
> > +with_systemd_unit_dir
> > '
> > ac_precious_vars='build_alias
> > host_alias
> > @@ -913,7 +921,9 @@ PKG_CONFIG
> > PKG_CONFIG_PATH
> > PKG_CONFIG_LIBDIR
> > udev_CFLAGS
> > -udev_LIBS'
> > +udev_LIBS
> > +systemd_CFLAGS
> > +systemd_LIBS'
> >
> >
> > # Initialize some variables set by options.
> > @@ -1591,6 +1601,9 @@ Optional Packages:
> > --with-multiarch=ARCH specify the multiarch triplet
> > --with-udev-rules-dir[=DIR]
> > Install udev rules into DIR.
> > + --with-crond-dir[=DIR] Install system crontabs into DIR.
> > + --with-systemd-unit-dir[=DIR]
> > + Install systemd system units into DIR.
> >
> > Some influential environment variables:
> > CC C compiler command
> > @@ -1608,6 +1621,10 @@ Some influential environment variables:
> > path overriding pkg-config's built-in search path
> > udev_CFLAGS C compiler flags for udev, overriding pkg-config
> > udev_LIBS linker flags for udev, overriding pkg-config
> > + systemd_CFLAGS
> > + C compiler flags for systemd, overriding pkg-config
> > + systemd_LIBS
> > + linker flags for systemd, overriding pkg-config
> >
> > Use these variables to override the choices made by `configure' or to help
> > it to find libraries and programs with nonstandard names/locations.
> > @@ -13803,6 +13820,7 @@ else
> > fi
> >
> > fi
> > +
> > { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can link with -static" >&5
> > $as_echo_n "checking whether we can link with -static... " >&6; }
> > if ${ac_cv_e2fsprogs_use_static+:} false; then :
> > @@ -14009,6 +14027,165 @@ fi
> >
> >
> >
> > +
> > +# Check whether --with-crond_dir was given.
> > +if test "${with_crond_dir+set}" = set; then :
> > + withval=$with_crond_dir;
> > +else
> > + with_crond_dir=yes
> > +fi
> > +
> > +if test "x${with_crond_dir}" != "xno"; then :
> > +
> > + if test "x${with_crond_dir}" = "xyes"; then :
> > +
> > + if test -d "/etc/cron.d"; then :
> > + with_crond_dir="/etc/cron.d"
> > +fi
> > +
> > +fi
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for system crontab dir" >&5
> > +$as_echo_n "checking for system crontab dir... " >&6; }
> > + crond_dir="${with_crond_dir}"
> > + if test -n "${crond_dir}"; then :
> > +
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${crond_dir}" >&5
> > +$as_echo "${crond_dir}" >&6; }
> > + have_crond="yes"
> > +
> > +else
> > +
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
> > +$as_echo "no" >&6; }
> > + have_crond="no"
> > +
> > +fi
> > +
> > +else
> > +
> > + have_crond="disabled"
> > +
> > +fi
> > +
> > +
> > +
> > +
> > +# Check whether --with-systemd_unit_dir was given.
> > +if test "${with_systemd_unit_dir+set}" = set; then :
> > + withval=$with_systemd_unit_dir;
> > +else
> > + with_systemd_unit_dir=yes
> > +fi
> > +
> > +if test "x${with_systemd_unit_dir}" != "xno"; then :
> > +
> > + if test "x${with_systemd_unit_dir}" = "xyes"; then :
> > +
> > +
> > +pkg_failed=no
> > +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for systemd" >&5
> > +$as_echo_n "checking for systemd... " >&6; }
> > +
> > +if test -n "$systemd_CFLAGS"; then
> > + pkg_cv_systemd_CFLAGS="$systemd_CFLAGS"
> > + elif test -n "$PKG_CONFIG"; then
> > + if test -n "$PKG_CONFIG" && \
> > + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"systemd\""; } >&5
> > + ($PKG_CONFIG --exists --print-errors "systemd") 2>&5
> > + ac_status=$?
> > + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
> > + test $ac_status = 0; }; then
> > + pkg_cv_systemd_CFLAGS=`$PKG_CONFIG --cflags "systemd" 2>/dev/null`
> > + test "x$?" != "x0" && pkg_failed=yes
> > +else
> > + pkg_failed=yes
> > +fi
> > + else
> > + pkg_failed=untried
> > +fi
> > +if test -n "$systemd_LIBS"; then
> > + pkg_cv_systemd_LIBS="$systemd_LIBS"
> > + elif test -n "$PKG_CONFIG"; then
> > + if test -n "$PKG_CONFIG" && \
> > + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"systemd\""; } >&5
> > + ($PKG_CONFIG --exists --print-errors "systemd") 2>&5
> > + ac_status=$?
> > + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
> > + test $ac_status = 0; }; then
> > + pkg_cv_systemd_LIBS=`$PKG_CONFIG --libs "systemd" 2>/dev/null`
> > + test "x$?" != "x0" && pkg_failed=yes
> > +else
> > + pkg_failed=yes
> > +fi
> > + else
> > + pkg_failed=untried
> > +fi
> > +
> > +
> > +
> > +if test $pkg_failed = yes; then
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
> > +$as_echo "no" >&6; }
> > +
> > +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
> > + _pkg_short_errors_supported=yes
> > +else
> > + _pkg_short_errors_supported=no
> > +fi
> > + if test $_pkg_short_errors_supported = yes; then
> > + systemd_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "systemd" 2>&1`
> > + else
> > + systemd_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "systemd" 2>&1`
> > + fi
> > + # Put the nasty error message in config.log where it belongs
> > + echo "$systemd_PKG_ERRORS" >&5
> > +
> > +
> > + with_systemd_unit_dir=""
> > +
> > +elif test $pkg_failed = untried; then
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
> > +$as_echo "no" >&6; }
> > +
> > + with_systemd_unit_dir=""
> > +
> > +else
> > + systemd_CFLAGS=$pkg_cv_systemd_CFLAGS
> > + systemd_LIBS=$pkg_cv_systemd_LIBS
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
> > +$as_echo "yes" >&6; }
> > +
> > + with_systemd_unit_dir="$($PKG_CONFIG --variable=systemdsystemunitdir systemd)"
> > +
> > +fi
> > +
> > +
> > +fi
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for systemd system unit dir" >&5
> > +$as_echo_n "checking for systemd system unit dir... " >&6; }
> > + systemd_system_unit_dir="${with_systemd_unit_dir}"
> > + if test -n "${systemd_system_unit_dir}"; then :
> > +
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${systemd_system_unit_dir}" >&5
> > +$as_echo "${systemd_system_unit_dir}" >&6; }
> > + have_systemd="yes"
> > +
> > +else
> > +
> > + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
> > +$as_echo "no" >&6; }
> > + have_systemd="no"
> > +
> > +fi
> > +
> > +else
> > +
> > + have_systemd="disabled"
> > +
> > +fi
> > +
> > +
> > +
> > test -d lib || mkdir lib
> > test -d include || mkdir include
> > test -d include/linux || mkdir include/linux
> > diff --git a/configure.ac b/configure.ac
> > index 6e549c5..5a2c8be 100644
> > --- a/configure.ac
> > +++ b/configure.ac
> > @@ -1392,7 +1392,8 @@ else
> > libdir=$libdir/$withval
> > root_libdir=$root_libdir/$withval
> > fi
> > -)dnl
> > +)
> > +dnl
> > dnl
> > dnl See if -static works. This could fail if the linker does not
> > dnl support -static, or if required external libraries are not available
> > @@ -1514,6 +1515,77 @@ AC_SUBST(have_udev)
> > AC_SUBST(pkg_udev_rules_dir)
> >
> > dnl
> > +dnl Where do cron jobs go?
> > +dnl
> > +AC_ARG_WITH([crond_dir],
> > + [AS_HELP_STRING([--with-crond-dir@<:@=DIR@:>@],
> > + [Install system crontabs into DIR.])],
> > + [],
> > + [with_crond_dir=yes])
> > +AS_IF([test "x${with_crond_dir}" != "xno"],
> > + [
> > + AS_IF([test "x${with_crond_dir}" = "xyes"],
> > + [
> > + AS_IF([test -d "/etc/cron.d"],
> > + [with_crond_dir="/etc/cron.d"])
> > + ])
> > + AC_MSG_CHECKING([for system crontab dir])
> > + crond_dir="${with_crond_dir}"
> > + AS_IF([test -n "${crond_dir}"],
> > + [
> > + AC_MSG_RESULT(${crond_dir})
> > + have_crond="yes"
> > + ],
> > + [
> > + AC_MSG_RESULT(no)
> > + have_crond="no"
> > + ])
> > + ],
> > + [
> > + have_crond="disabled"
> > + ])
> > +AC_SUBST(have_crond)
> > +AC_SUBST(crond_dir)
> > +
> > +dnl
> > +dnl Where do systemd services go?
> > +dnl
> > +AC_ARG_WITH([systemd_unit_dir],
> > + [AS_HELP_STRING([--with-systemd-unit-dir@<:@=DIR@:>@],
> > + [Install systemd system units into DIR.])],
> > + [],
> > + [with_systemd_unit_dir=yes])
> > +AS_IF([test "x${with_systemd_unit_dir}" != "xno"],
> > + [
> > + AS_IF([test "x${with_systemd_unit_dir}" = "xyes"],
> > + [
> > + PKG_CHECK_MODULES([systemd], [systemd],
> > + [
> > + with_systemd_unit_dir="$($PKG_CONFIG --variable=systemdsystemunitdir systemd)"
> > + ], [
> > + with_systemd_unit_dir=""
> > + ])
> > + m4_pattern_allow([^PKG_(MAJOR|MINOR|BUILD|REVISION)$])
> > + ])
> > + AC_MSG_CHECKING([for systemd system unit dir])
> > + systemd_system_unit_dir="${with_systemd_unit_dir}"
> > + AS_IF([test -n "${systemd_system_unit_dir}"],
> > + [
> > + AC_MSG_RESULT(${systemd_system_unit_dir})
> > + have_systemd="yes"
> > + ],
> > + [
> > + AC_MSG_RESULT(no)
> > + have_systemd="no"
> > + ])
> > + ],
> > + [
> > + have_systemd="disabled"
> > + ])
> > +AC_SUBST(have_systemd)
> > +AC_SUBST(systemd_system_unit_dir)
> > +
> > +dnl
> > dnl Make our output files, being sure that we create the some miscellaneous
> > dnl directories
> > dnl
> > diff --git a/debian/e2fsprogs.files b/debian/e2fsprogs.files
> > index 78720fe..e0e49ce 100644
> > --- a/debian/e2fsprogs.files
> > +++ b/debian/e2fsprogs.files
> > @@ -1,6 +1,9 @@
> > sbin
> > usr/bin
> > +usr/lib
> > usr/sbin
> > usr/share/man
> > etc
> > lib/udev/rules.d
> > +lib/systemd/system
> > +usr/lib
> > diff --git a/debian/e2fsprogs.postinst b/debian/e2fsprogs.postinst
> > index 00ac363..e7acb0e 100644
> > --- a/debian/e2fsprogs.postinst
> > +++ b/debian/e2fsprogs.postinst
> > @@ -10,4 +10,23 @@ fi
> >
> > #DEBHELPER#
> >
> > +# debhelper doesn't know what timers are...
> > +update_svc() {
> > + deb-systemd-helper unmask "$1" >/dev/null || true
> > +
> > + if deb-systemd-helper --quiet was-enabled "$1"; then
> > + deb-systemd-helper enable "$1" >/dev/null || true
> > + else
> > + deb-systemd-helper update-state "$1" >/dev/null || true
> > + fi
> > +}
> > +update_svc e2scrub_all.timer
> > +update_svc e2scrub_reap.service
> > +
> > +# Start our new services
> > +if [ -d /run/systemd/system ]; then
> > + systemctl --system daemon-reload >/dev/null || true
> > + deb-systemd-invoke start e2scrub_all.timer >/dev/null || true
> > +fi
> > +
> > exit 0
> > diff --git a/debian/e2fsprogs.postrm b/debian/e2fsprogs.postrm
> > new file mode 100644
> > index 0000000..32cb642
> > --- /dev/null
> > +++ b/debian/e2fsprogs.postrm
> > @@ -0,0 +1,35 @@
> > +#!/bin/sh
> > +
> > +update_svc() {
> > + deb-systemd-helper mask "$1" >/dev/null || true
> > +
> > + if deb-systemd-helper --quiet was-enabled "$1"; then
> > + # Enables the unit on first installation, creates new
> > + # symlinks on upgrades if the unit file has changed.
> > + deb-systemd-helper disable "$1" >/dev/null || true
> > + fi
> > +}
> > +
> > +if [ "$1" != "upgrade" ]; then
> > + # Abort on error.
> > + set -e
> > +
> > + if [ -x /usr/sbin/update-initramfs -a \
> > + -e /etc/initramfs-tools/initramfs.conf ]; then
> > + update-initramfs -u
> > + fi
> > +
> > + #DEBHELPER#
> > +
> > + # debhelper doesn't know what timers are...
> > + update_svc e2scrub_all.timer
> > + update_svc e2scrub_reap.service
> > +
> > + # Start our new services
> > + if [ -d /run/systemd/system ]; then
> > + deb-systemd-invoke stop e2scrub_all.timer >/dev/null || true
> > + fi
> > +fi
> > +
> > +exit 0
> > +
> > diff --git a/scrub/Makefile.in b/scrub/Makefile.in
> > index 1744941..cc2e9ce 100644
> > --- a/scrub/Makefile.in
> > +++ b/scrub/Makefile.in
> > @@ -22,7 +22,23 @@ INSTALL_TGT += install-udev
> > UNINSTALL_TGT += uninstall-udev
> > endif
> >
> > -all:: $(PROGS) $(MANPAGES) $(CONFFILES) $(UDEV_RULES)
> > +ifeq ($(HAVE_CROND),yes)
> > +CRONTABS = e2scrub_all.cron
> > +LIBPROGS += e2scrub_reap e2scrub_all_cron
> > +INSTALLDIRS_TGT += installdirs-crond installdirs-libprogs
> > +INSTALL_TGT += install-crond install-libprogs
> > +UNINSTALL_TGT += uninstall-crond uninstall-libprogs
> > +endif
> > +
> > +ifeq ($(HAVE_SYSTEMD),yes)
> > +SERVICE_FILES = e2scrub@...rvice e2scrub_all.service e2scrub_all.timer e2scrub_fail@...rvice e2scrub_reap.service
> > +LIBPROGS += e2scrub_fail e2scrub_reap
> > +INSTALLDIRS_TGT += installdirs-systemd installdirs-libprogs
> > +INSTALL_TGT += install-systemd install-libprogs
> > +UNINSTALL_TGT += uninstall-systemd uninstall-libprogs
> > +endif
> > +
> > +all:: $(PROGS) $(MANPAGES) $(CONFFILES) $(UDEV_RULES) $(SERVICE_FILES) $(CRONTABS) $(LIBPROGS)
> >
> > e2scrub: $(DEP_SUBSTITUTE) e2scrub.in
> > $(E) " SUBST $@"
> > @@ -34,6 +50,21 @@ e2scrub_all: e2scrub_all.in
> > $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/e2scrub_all.in $@
> > $(Q) chmod a+x $@
> >
> > +e2scrub_fail: e2scrub_fail.in
> > + $(E) " SUBST $@"
> > + $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/e2scrub_fail.in $@
> > + $(Q) chmod a+x $@
> > +
> > +e2scrub_reap: e2scrub_reap.in
> > + $(E) " SUBST $@"
> > + $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/e2scrub_reap.in $@
> > + $(Q) chmod a+x $@
> > +
> > +e2scrub_all_cron: e2scrub_all_cron.in
> > + $(E) " SUBST $@"
> > + $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/e2scrub_all_cron.in $@
> > + $(Q) chmod a+x $@
> > +
> > %.8: %.8.in $(DEP_SUBSTITUTE)
> > $(E) " SUBST $@"
> > $(Q) $(SUBSTITUTE_UPTIME) $< $@
> > @@ -46,10 +77,34 @@ e2scrub_all: e2scrub_all.in
> > $(E) " SUBST $@"
> > $(Q) $(SUBSTITUTE_UPTIME) $< $@
> >
> > +%.service: %.service.in $(DEP_SUBSTITUTE)
> > + $(E) " SUBST $@"
> > + $(Q) $(SUBSTITUTE_UPTIME) $< $@
> > +
> > +%.cron: %.cron.in $(DEP_SUBSTITUTE)
> > + $(E) " SUBST $@"
> > + $(Q) $(SUBSTITUTE_UPTIME) $< $@
> > +
> > +%.timer: %.timer.in $(DEP_SUBSTITUTE)
> > + $(E) " SUBST $@"
> > + $(Q) $(SUBSTITUTE_UPTIME) $< $@
> > +
> > installdirs-udev:
> > $(E) " MKINSTALLDIRS $(UDEV_RULES_DIR)"
> > $(Q) $(MKINSTALLDIRS) $(DESTDIR)$(UDEV_RULES_DIR)
> >
> > +installdirs-crond:
> > + $(E) " MKINSTALLDIRS $(CROND_DIR)"
> > + $(Q) $(MKINSTALLDIRS) $(DESTDIR)$(CROND_DIR)
> > +
> > +installdirs-libprogs:
> > + $(E) " MKINSTALLDIRS $(pkglibdir)"
> > + $(Q) $(MKINSTALLDIRS) $(DESTDIR)$(pkglibdir)
> > +
> > +installdirs-systemd:
> > + $(E) " MKINSTALLDIRS $(SYSTEMD_SYSTEM_UNIT_DIR)"
> > + $(Q) $(MKINSTALLDIRS) $(DESTDIR)$(SYSTEMD_SYSTEM_UNIT_DIR)
> > +
> > installdirs: $(INSTALLDIRS_TGT)
> > $(E) " MKINSTALLDIRS $(root_sbindir) $(man8dir) $(root_sysconfdir)"
> > $(Q) $(MKINSTALLDIRS) $(DESTDIR)$(root_sbindir) \
> > @@ -61,6 +116,24 @@ install-udev:
> > $(INSTALL_PROGRAM) $$i $(DESTDIR)$(UDEV_RULES_DIR)/96-$$i; \
> > done
> >
> > +install-crond:
> > + $(Q) for i in $(CRONTABS); do \
> > + $(ES) " INSTALL $(CROND_DIR)/$$i"; \
> > + $(INSTALL_PROGRAM) $$i $(DESTDIR)$(CROND_DIR)/$$i; \
> > + done
> > +
> > +install-libprogs: $(LIBPROGS)
> > + $(Q) for i in $(LIBPROGS); do \
> > + $(ES) " INSTALL $(pkglibdir)/$$i"; \
> > + $(INSTALL_PROGRAM) $$i $(DESTDIR)$(pkglibdir)/$$i; \
> > + done
> > +
> > +install-systemd: $(SERVICE_FILES)
> > + $(Q) for i in $(SERVICE_FILES); do \
> > + $(ES) " INSTALL_DATA $(SYSTEMD_SYSTEM_UNIT_DIR)/$$i"; \
> > + $(INSTALL_DATA) $$i $(DESTDIR)$(SYSTEMD_SYSTEM_UNIT_DIR)/$$i; \
> > + done
> > +
> > install: $(PROGS) $(MANPAGES) $(FMANPAGES) installdirs $(INSTALL_TGT)
> > $(Q) for i in $(PROGS); do \
> > $(ES) " INSTALL $(root_sbindir)/$$i"; \
> > @@ -83,6 +156,21 @@ uninstall-udev:
> > $(RM) -f $(DESTDIR)$(UDEV_RULES_DIR)/96-$$i; \
> > done
> >
> > +uninstall-crond:
> > + for i in $(CRONTABS); do \
> > + $(RM) -f $(DESTDIR)$(CROND_DIR)/$$i; \
> > + done
> > +
> > +uninstall-libprogs:
> > + for i in $(LIBPROGS); do \
> > + $(RM) -f $(DESTDIR)$(pkglibdir)/$$i; \
> > + done
> > +
> > +uninstall-systemd:
> > + for i in $(SERVICE_FILES); do \
> > + $(RM) -f $(DESTDIR)$(SYSTEMD_SYSTEM_UNIT_DIR)/$$i; \
> > + done
> > +
> > uninstall: $(UNINSTALL_TGT)
> > for i in $(PROGS); do \
> > $(RM) -f $(DESTDIR)$(root_sbindir)/$$i; \
> > diff --git a/scrub/e2scrub.in b/scrub/e2scrub.in
> > index f77ec6f..a19b6bb 100644
> > --- a/scrub/e2scrub.in
> > +++ b/scrub/e2scrub.in
> > @@ -44,12 +44,34 @@ print_version() {
> > echo "e2scrub @E2FSPROGS_VERSION@ (@E2FSPROGS_DATE@)"
> > }
> >
> > +exitcode() {
> > + ret="$1"
> > +
> > + # If we're being run as a service, the return code must fit the LSB
> > + # init script action error guidelines, which is to say that we
> > + # compress all errors to 1 ("generic or unspecified error", LSB 5.0
> > + # section 22.2) and hope the admin will scan the log for what
> > + # actually happened.
> > +
> > + # We have to sleep 2 seconds here because journald uses the pid to
> > + # connect our log messages to the systemd service. This is critical
> > + # for capturing all the log messages if the scrub fails, because the
> > + # fail service uses the service name to gather log messages for the
> > + # error report.
> > + if [ -n "${SERVICE_MODE}" ]; then
> > + test "${ret}" -ne 0 && ret=1
> > + sleep 2
> > + fi
> > +
> > + exit "${ret}"
> > +}
> > +
> > while getopts "rtV" opt; do
> > case "${opt}" in
> > "r") reap=1;;
> > "t") fstrim=1;;
> > - "V") print_version; exit 0;;
> > - *) print_help; exit 2;;
> > + "V") print_version; exitcode 0;;
> > + *) print_help; exitcode 2;;
> > esac
> > done
> > shift "$((OPTIND - 1))"
> > @@ -57,18 +79,18 @@ shift "$((OPTIND - 1))"
> > dev="$1"
> > if [ -z "${dev}" ]; then
> > print_help
> > - exit 1
> > + exitcode 1
> > elif [ ! -b "${dev}" ]; then
> > echo "${dev}: Not a block device?"
> > print_help
> > - exit 16
> > + exitcode 16
> > fi
> >
> > # Make sure this is an LVM device we can snapshot
> > eval $(lvs --nameprefixes -o name,vgname --noheadings "${dev}")
> > if [ -z "${LVM2_VG_NAME}" ] || [ -z "${LVM2_LV_NAME}" ]; then
> > echo "${dev}: Not a LVM device."
> > - exit 16
> > + exitcode 16
> > fi
> > start_time="$(date +'%Y%m%d%H%M%S')"
> > snap="${LVM2_LV_NAME}.e2scrub"
> > @@ -80,7 +102,7 @@ ext[234])
> > ;;
> > *)
> > echo "${dev}: Filesystem of type ${fstype} not supported."
> > - exit 16
> > + exitcode 16
> > ;;
> > esac
> >
> > @@ -128,7 +150,7 @@ if [ "${reap}" -gt 0 ]; then
> > fi
> > if ! setup; then
> > echo "Snapshot of ${dev} FAILED, will not check!"
> > - exit 1
> > + exitcode 1
> > fi
> >
> > # Check and react
> > @@ -167,4 +189,4 @@ else
> > fi
> > fi
> >
> > -exit "${ret}"
> > +exitcode "${ret}"
> > diff --git a/scrub/e2scrub@...rvice.in b/scrub/e2scrub@...rvice.in
> > new file mode 100644
> > index 0000000..496f894
> > --- /dev/null
> > +++ b/scrub/e2scrub@...rvice.in
> > @@ -0,0 +1,20 @@
> > +[Unit]
> > +Description=Online ext4 Metadata Check for %I
> > +OnFailure=e2scrub_fail@...service
> > +Documentation=man:e2scrub(8)
> > +
> > +[Service]
> > +Type=oneshot
> > +WorkingDirectory=/
> > +PrivateNetwork=true
> > +ProtectSystem=true
> > +ProtectHome=read-only
> > +PrivateTmp=yes
> > +AmbientCapabilities=CAP_SYS_ADMIN CAP_SYS_RAWIO
> > +NoNewPrivileges=yes
> > +User=root
> > +IOSchedulingClass=idle
> > +CPUSchedulingPolicy=idle
> > +Environment=SERVICE_MODE=1
> > +ExecStart=@...t_sbindir@...scrub -t %I
> > +SyslogIdentifier=%N
> > diff --git a/scrub/e2scrub_all.cron.in b/scrub/e2scrub_all.cron.in
> > new file mode 100644
> > index 0000000..0cb5f1f
> > --- /dev/null
> > +++ b/scrub/e2scrub_all.cron.in
> > @@ -0,0 +1,2 @@
> > +30 3 * * 0 root test -e /run/systemd/system || @pkglibdir@...scrub_all_cron
> > +10 3 * * * root test -e /run/systemd/system || @pkglibdir@...scrub_reap
> > diff --git a/scrub/e2scrub_all.in b/scrub/e2scrub_all.in
> > index 453981b..fbf2e95 100644
> > --- a/scrub/e2scrub_all.in
> > +++ b/scrub/e2scrub_all.in
> > @@ -30,10 +30,32 @@ print_version() {
> > echo "e2scrub_all @E2FSPROGS_VERSION@ (@E2FSPROGS_DATE@)"
> > }
> >
> > +exitcode() {
> > + ret="$1"
> > +
> > + # If we're being run as a service, the return code must fit the LSB
> > + # init script action error guidelines, which is to say that we
> > + # compress all errors to 1 ("generic or unspecified error", LSB 5.0
> > + # section 22.2) and hope the admin will scan the log for what
> > + # actually happened.
> > +
> > + # We have to sleep 2 seconds here because journald uses the pid to
> > + # connect our log messages to the systemd service. This is critical
> > + # for capturing all the log messages if the scrub fails, because the
> > + # fail service uses the service name to gather log messages for the
> > + # error report.
> > + if [ -n "${SERVICE_MODE}" ]; then
> > + test "${ret}" -ne 0 && ret=1
> > + sleep 2
> > + fi
> > +
> > + exit "${ret}"
> > +}
> > +
> > while getopts "V" opt; do
> > case "${opt}" in
> > - "V") print_version; exit 0;;
> > - *) print_help; exit 2;;
> > + "V") print_version; exitcode 0;;
> > + *) print_help; exitcode 2;;
> > esac
> > done
> > shift "$((OPTIND - 1))"
> > @@ -49,7 +71,15 @@ lvs -o vg_name,lv_name,lv_role --noheadings 2> /dev/null | while read vg lv role
> > # Skip non-ext[234]
> > blkid -p -n "${types}" "${dev}" > /dev/null 2>&1 || continue
> >
> > - ${DBG} "@root_sbindir@...scrub" "${dev}"
> > + if type systemctl > /dev/null 2>&1; then
> > + ${DBG} systemctl start "e2scrub@...ev}" 2> /dev/null
> > + res=$?
> > + if [ "${res}" -ne 0 ] && [ "${res}" -ne 1 ]; then
> > + ${DBG} "@root_sbindir@...scrub" "${dev}"
> > + fi
> > + else
> > + ${DBG} "@root_sbindir@...scrub" "${dev}"
> > + fi
> > done
> >
> > -exit 0
> > +exitcode 0
> > diff --git a/scrub/e2scrub_all.service.in b/scrub/e2scrub_all.service.in
> > new file mode 100644
> > index 0000000..bc05184
> > --- /dev/null
> > +++ b/scrub/e2scrub_all.service.in
> > @@ -0,0 +1,10 @@
> > +[Unit]
> > +Description=Online ext4 Metadata Check for All Filesystems
> > +ConditionACPower=true
> > +Documentation=man:e2scrub_all(8)
> > +
> > +[Service]
> > +Type=oneshot
> > +Environment=SERVICE_MODE=1
> > +ExecStart=@...t_sbindir@...scrub_all
> > +SyslogIdentifier=e2scrub_all
> > diff --git a/scrub/e2scrub_all.timer.in b/scrub/e2scrub_all.timer.in
> > new file mode 100644
> > index 0000000..3d558bb
> > --- /dev/null
> > +++ b/scrub/e2scrub_all.timer.in
> > @@ -0,0 +1,11 @@
> > +[Unit]
> > +Description=Periodic ext4 Online Metadata Check for All Filesystems
> > +
> > +[Timer]
> > +# Run on Sunday at 3:10am, to avoid running afoul of DST changes
> > +OnCalendar=Sun *-*-* 03:10:00
> > +RandomizedDelaySec=60
> > +Persistent=true
> > +
> > +[Install]
> > +WantedBy=timers.target
> > diff --git a/scrub/e2scrub_all_cron.in b/scrub/e2scrub_all_cron.in
> > new file mode 100644
> > index 0000000..f9cff87
> > --- /dev/null
> > +++ b/scrub/e2scrub_all_cron.in
> > @@ -0,0 +1,68 @@
> > +#!/bin/bash
> > +
> > +# Copyright (C) 2018 Oracle. All Rights Reserved.
> > +#
> > +# Author: Darrick J. Wong <darrick.wong@...cle.com>
> > +#
> > +# This program is free software; you can redistribute it and/or
> > +# modify it under the terms of the GNU General Public License
> > +# as published by the Free Software Foundation; either version 2
> > +# of the License, or (at your option) any later version.
> > +#
> > +# This program is distributed in the hope that it would be useful,
> > +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> > +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> > +# GNU General Public License for more details.
> > +#
> > +# You should have received a copy of the GNU General Public License
> > +# along with this program; if not, write the Free Software Foundation,
> > +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
> > +
> > +# Run e2scrub_all from a cronjob if we don't have systemd and we're not
> > +# running on AC power.
> > +
> > +on_ac_power() {
> > + local any_known=no
> > +
> > + # try sysfs power class first
> > + if [ -d /sys/class/power_supply ]; then
> > + for psu in /sys/class/power_supply/*; do
> > + if [ -r "$psu/type" ]; then
> > + type=$(cat "$psu/type")
> > +
> > + # ignore batteries
> > + [ "$type" = "Battery" ] && continue
> > +
> > + online=$(cat "$psu/online")
> > +
> > + [ "$online" = 1 ] && return 0
> > + [ "$online" = 0 ] && any_known=yes
> > + fi
> > + done
> > +
> > + [ "$any_known" = "yes" ] && return 1
> > + fi
> > +
> > + # else fall back to AC adapters in /proc
> > + if [ -d /proc/acpi/ac_adapter ]; then
> > + for ac in /proc/acpi/ac_adapter/*; do
> > + if [ -r "$ac/state" ]; then
> > + grep -q on-line "$ac/state" && return 0
> > + grep -q off-line "$ac/state" && any_known=yes
> > + elif [ -r "$ac/status" ]; then
> > + grep -q on-line "$ac/status" && return 0
> > + grep -q off-line "$ac/status" && any_known=yes
> > + fi
> > + done
> > +
> > + [ "$any_known" = "yes" ] && return 1
> > + fi
> > +
> > + # Can't tell, just assume we're on AC.
> > + return 0
> > +}
> > +
> > +test -e /run/systemd/system && exit 0
> > +on_ac_power || exit 0
> > +
> > +exec @root_sbindir@...scrub_all
> > diff --git a/scrub/e2scrub_fail.in b/scrub/e2scrub_fail.in
> > new file mode 100644
> > index 0000000..f27197a
> > --- /dev/null
> > +++ b/scrub/e2scrub_fail.in
> > @@ -0,0 +1,25 @@
> > +#!/bin/bash
> > +
> > +# Email logs of failed e2scrub unit runs when the systemd service fails.
> > +
> > +recipient="$1"
> > +test -z "${recipient}" && exit 0
> > +device="$2"
> > +test -z "${device}" && exit 0
> > +hostname="$(hostname -f 2>/dev/null)"
> > +test -z "${hostname}" && hostname="${HOSTNAME}"
> > +if ! type sendmail > /dev/null 2>&1; then
> > + echo "$0: sendmail program not found."
> > + exit 1
> > +fi
> > +
> > +(cat << ENDL
> > +To: $1
> > +From: <e2scrub@...ostname}>
> > +Subject: e2scrub failure on ${device}
> > +
> > +So sorry, the automatic e2scrub of ${device} on ${hostname} failed.
> > +
> > +A log of what happened follows:
> > +ENDL
> > +systemctl status --full --lines 4294967295 "e2scrub@...evice}") | sendmail -t -i
> > diff --git a/scrub/e2scrub_fail@...rvice.in b/scrub/e2scrub_fail@...rvice.in
> > new file mode 100644
> > index 0000000..df87949
> > --- /dev/null
> > +++ b/scrub/e2scrub_fail@...rvice.in
> > @@ -0,0 +1,10 @@
> > +[Unit]
> > +Description=Online ext4 Metadata Check Failure Reporting for %I
> > +
> > +[Service]
> > +Type=oneshot
> > +Environment=EMAIL_ADDR=root
> > +ExecStart=@...libdir@...scrub_fail "${EMAIL_ADDR}" %I
> > +User=mail
> > +Group=mail
> > +SupplementaryGroups=systemd-journal
> > diff --git a/scrub/e2scrub_reap.in b/scrub/e2scrub_reap.in
> > new file mode 100644
> > index 0000000..0fde0e6
> > --- /dev/null
> > +++ b/scrub/e2scrub_reap.in
> > @@ -0,0 +1,48 @@
> > +#!/bin/bash
> > +
> > +# Copyright (C) 2018 Oracle. All Rights Reserved.
> > +#
> > +# Author: Darrick J. Wong <darrick.wong@...cle.com>
> > +#
> > +# This program is free software; you can redistribute it and/or
> > +# modify it under the terms of the GNU General Public License
> > +# as published by the Free Software Foundation; either version 2
> > +# of the License, or (at your option) any later version.
> > +#
> > +# This program is distributed in the hope that it would be useful,
> > +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> > +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> > +# GNU General Public License for more details.
> > +#
> > +# You should have received a copy of the GNU General Public License
> > +# along with this program; if not, write the Free Software Foundation,
> > +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
> > +
> > +# Clean up leftover e2scrub snapshots
> > +
> > +# Find any ${lvname}.e2scrub snapshot and delete it
> > +lvs -o vg_name,lv_name,lv_role --noheadings 2> /dev/null | while read vg lv role extra; do
> > + # Parse error?
> > + test -n "${extra}" || continue
> > + # Is this really a snapshot?
> > + echo "${role}" | grep -q "snapshot" || continue
> > + # An e2scrub snapshot?
> > + echo "${lv}" | grep -q ".e2scrub$" || continue
> > +
> > + # Check that the e2scrub snap still exists after waiting a brief period.
> > + # This is how try to avoid deleting a snap from underneath a running
> > + # scrub.
> > + dev="/dev/${vg}/${lv}"
> > + test -e "${dev}" || continue
> > + sleep 2
> > + test -e "${dev}" || continue
> > +
> > + # Remove and wait for removal to succeed.
> > + lvremove -f "${vg}/${lv}" 3>&-
> > + while [ -e "${dev}" ] && [ "$?" -eq "5" ]; do
> > + sleep 0.5
> > + lvremove -f "${vg}/${lv}" 3>&-
> > + done
> > +done
> > +
> > +exitcode 0
> > diff --git a/scrub/e2scrub_reap.service.in b/scrub/e2scrub_reap.service.in
> > new file mode 100644
> > index 0000000..38eefc4
> > --- /dev/null
> > +++ b/scrub/e2scrub_reap.service.in
> > @@ -0,0 +1,21 @@
> > +[Unit]
> > +Description=Remove Stale Online ext4 Metadata Check Snapshots
> > +
> > +[Service]
> > +Type=oneshot
> > +WorkingDirectory=/
> > +PrivateNetwork=true
> > +ProtectSystem=true
> > +ProtectHome=read-only
> > +PrivateTmp=yes
> > +AmbientCapabilities=CAP_SYS_ADMIN CAP_SYS_RAWIO
> > +NoNewPrivileges=yes
> > +User=root
> > +IOSchedulingClass=idle
> > +CPUSchedulingPolicy=idle
> > +ExecStart=@...libdir@...scrub_reap
>
> I thought that the idea was to use e2scrub -r and get rid of the
> e2scrub_reap.
e2scrub -r only gets rid of one lvm volume's e2scrub snapshot, so you
need a utility to find them all and nuke them. That used to be
e2scrub_reap, but I've folded that into "e2scrub_all -r".
--D
> -Lukas
>
> > +SyslogIdentifier=%N
> > +RemainAfterExit=no
> > +
> > +[Install]
> > +WantedBy=default.target
> > diff --git a/util/subst.conf.in b/util/subst.conf.in
> > index 6bf658d..0da4554 100644
> > --- a/util/subst.conf.in
> > +++ b/util/subst.conf.in
> > @@ -21,3 +21,6 @@ JDEV
> > TDB_MAN_COMMENT @TDB_MAN_COMMENT@
> > root_sbindir @root_sbindir@
> > root_bindir @root_bindir@
> > +libdir @libdir@
> > +$exec_prefix @exec_prefix@
> > +pkglibdir @libdir@...fsprogs
> >
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