https://bugzilla.redhat.com/show_bug.cgi?id=1745199
https://github.com/systemd-rhel/rhel-7/pull/38/commits/3a3c7374893751d2974cbb1b05dfbf71b49df590

return error value on failure (#1729226)
revert local changes made during backport of the test (#1729226)
core/timer: Prevent timer looping when unit cannot start (#1729230)
core: add a "Requires=" dependency between units and the slices they are located in (#1729228)
core: rerun GC logic for a unit that loses a reference (#1729228)
pid1: rename unit_check_gc to unit_may_gc (#1729228)
pid1: include the source unit in UnitRef (#1729228)
pid1: fix collection of cycles of units which reference one another (#1729228)
pid1: free basic unit information at the very end, before freeing the unit (#1729228)
pid1: properly remove references to the unit from gc queue during final cleanup (#1729228)
service: relax PID file symlink chain checks a bit (#8133) (#1729414)
path-util: fix more path_is_mount e792e890f fallout (#1279231)

fix mis-merge (#1714503)
fs-util: chase_symlinks(): prevent double fre (#1714782)

sd-bus: unify three code-paths which free struct bus_container (#1643394)
hashmap: don't use mempool (#1609349)
man: be more explicit about thread safety of sd_journal (#1609349)
selinux: don't log SELINUX_INFO and SELINUX_WARNING messages to audit (#1240730)

backport fd_is_fs_type (#1663143)
backport chase_symlinks (#1663143)
fs-util: add new CHASE_SAFE flag to chase_symlinks() (#1663143)
fs-util: add new chase_symlinks() flag CHASE_OPEN (#1663143)
sd-dameon: also sent ucred when our UID differs from EUID (#1663143)
notify: add new --uid= command (#1663143)
core: be stricter when handling PID files and MAINPID sd_notify() messages (#1663143)
journald: respect KeepFree= as well as MaxUse= values (#1361893)
shutdown: in_container was used before its definition (#1693716)
core: Fix edge case when processing /proc/self/mountinfo (#1691511)
sd-bus: deal with cookie overruns (#1693559)
Refuse dbus message paths longer than BUS_PATH_SIZE_MAX limit. (#1667871)
Allocate temporary strings to hold dbus paths on the heap (#1667871)
sd-bus: if we receive an invalid dbus message, ignore and proceeed (#1667871)
udev: check if the spawned PID didn't exit after reaping unexpected PID (#1697909)
udev: call poll() again after killing the spawned process (#1697909)
udev: check age against both timeouts to prevent integer wraparound (#1697909)
avoid possible hang if our child process hangs (#1697909)
missing: when adding syscall replacements, use different names (#1694605)
include sys/sysmacros.h in more places (#1694605)

detect-virt: do not try to read all of /proc/cpuinfo (#1631531)
core: disable the effect of Restart= if there's a stop job pending for a service (#6581) (#1626382)
networkd: respect DHCP UseRoutes option (#1663365)
networkd: fix dhcp4 link without routes not being considered ready (#8728) (#1663365)
networkd: dont crash when mtu changes (#6594) (#1663365)
tmpfiles: "e" takes globs (#1641764)
tmpfiles: 'e' is supposed to operate on directory only (#1641764)
tmpfiles: 'e' is supposed to accept shell-style globs (#1641764)
bus-message: do not crash on message with a string of zero length (#1643396)
Revert "bus: when dumping string property values escape the chars we use as end-of-line and end-of-item marks" (#1643172)
set automount state to waiting when the mount is stopped (#1651257)
core: when deserializing state always use read_line(…, LONG_LINE_MAX, …) (CVE-2018-15686)
shorten hostname before checking for trailing dot (#1631625)
journald: fixed assertion failure when system journal rotation fails (#9893) (#1619543)
local-addresses: handle gracefully if routes lack an RTA_OIF attribute (#1627750)
rules: fix memory hotplug rule so systemd-detect-virt does not run too often (#1666612)
6647 - use path_startswith("/dev") in cryptsetup (#6732) (#1664695)
core: mount-setup: handle non-existing mountpoints gracefully (#1585411)
units/rescue.service.in: fix announcement message (#1660422)
systemctl: Allow 'edit' and 'cat' on unloaded units (#1649518)
main: improve RLIMIT_NOFILE handling (#5795) (#1585913)
shared/sleep-config: exclude zram devices from hibernation candidates (#1609816)
journalctl: allow --file/--directory with --boot or --list-boots (#1463678)
journalct: allow --boot=0 to DTRT with --file/--directory (#1463678)
journal-remote: show error message if output file name does not end with .journal (bz#1267552)
artificially serialize building of .policy files (#1272485)
cryptsetup: add support for sector-size= option (#9936) (#1571801)
cryptsetup: do not define arg_sector_size if libgcrypt is v1.x (#9990) (#1571801)
journal: fix syslog_parse_identifier() (#1657794)
journal: do not remove multiple spaces after identifier in syslog message (#1657794)
tmpfiles: change ownership of symlinks too (#1620110)
tmpfiles: fix check for figuring out whether to call chmod() (#1620110)
shared/install: allow "enable" on linked unit files (#1628575)

dhcp6: make sure we have enough space for the DHCP6 option header (CVE-2018-15688)
journald: do not store the iovec entry for process commandline on stack (#1657788)
journald: set a limit on the number of fields (1k) (#1657792)
journal-remote: set a limit on the number of fields in a message (#1657792)
journald: free cmdline buffers owned by iovec (#1666646)

cryptsetup-generator: introduce basic keydev support (#1619743)
cryptsetup-generator: don't return error if target directory already exists (#1619743)
cryptsetup-generator: allow whitespace characters in keydev specification (#1619743)
Make sure the mount units pulled by 'RequiresMountsFor=' are loaded (if they exist) (#1619743)

restart automounts unit on update (#1596241)

Revert "rules: mark hotplugged memory as movable" (#1614686)
rules: implement new memory hotplug policy (#1614686)
Revert "rules: add udev rule that automatically offline HW attached to ACPI container" (#1597958)

man: correct the meaning of TimeoutStopSec= (#1305509)
rules: mark hotplugged memory as movable (#1563532)
udev: add ID_INPUT_SWITCH for devices with switch capability (#5057) (#1597240)
rules: disable support for Dell IR cameras (#1591316)
rpm: fix
eq 1 ] ; then
-global >/dev/null 2>&1 || :
rpm: remove confusing --user before --global (#1582383)
automount: handle state changes of the corresponding mount unit correctly (#1596241)
man: document that SIGCONT always follows SIGTERM (#1601794)
rules: add udev rule that automatically offline HW attached to ACPI container (#1597958)

tmpfiles: don't skip cleanup of read-only root owned files if TMPFILES_AGE_ALL is set (#1533638)
timer: we already got the trigger before, no need to call UNIT_TRIGGER again (#1549119)
doc: fix links to binfmt_misc kernel documentation (#1572244)
man/udevadm: remove superfluous --version from subcommand (#1553076)
man/udevadm: correctly show the short version of --exit (#1552712)
core/timer: downgrade message about random time addition (#5229) (#1587906)
fd-util: add new acquire_data_fd() API helper (#1446095)
systemd-analyze: make dump work for large # of units (#1446095)
use max. message size allowed by DBus spec (#8936) (#1446095)
cryptsetup: support LUKS2 on-disk format (#1573838)
units: don't put udev to its own mount namespace with slave propagation (#1432211)
rules: disable support for Lenovo IR cameras (#1540418)
core: make sure "systemctl reload-or-try-restart is actually a noop if a unit is not running (#1191920)
core: fix confusing logging of instantaneous jobs (#1506256)
core: correct return value from reload methods (#1506256)
core: always try harder to get unit status message format string (#1506256)
core: unit_get_status_message_format() never returns NULL (#1506256)
core: try harder to get job completion messages too (#1506256)
core: remove generic job completion messages from unit vtables (#1506256)
core: do not log done failed-condition jobs as if unit started (#1506256)
core: log completion of remaining job types (#1506256)
core: adjust job completion message log levels (#1506256)
mount: add new LazyUnmount= setting for mount units, mapping to umount(8)'s "-l" switch (#3827) (#1497264)
rules: Add MODEL_ID for NVMe device (#7037) (#1397264)
umount: always use MNT_FORCE in umount_all() (#7213) (#1571098)
core: Implement timeout based umount/remount limit (#1571098)
core: Implement sync_with_progress() (#1571098)
journal: forward messages from /dev/log unmodified to syslog.socket (#1409659)
tmpfiles: use safe_glob() (#1436004)
core: delay adding target dependencies until all units are loaded and aliases resolved (#8381) (#1368856)

sd-journal: properly handle inotify queue overflow (#1540538)
sd-journal: make sure it's safe to call sd_journal_process() before the first sd_journal_wait() (#1540538)
journalctl: Periodically call sd_journal_process in journalctl (#1540538)
sd-journal: when picking up a new file, compare inode/device info with previous open file by same name (#1540538)

core: don't choke if a unit another unit triggers vanishes during reload (#1545676)

sparse: avoid clash with __bitwise and __force from 4.10 linux/types.h (#5061) (#1447937)
core: Let two more booleans survive a daemon-reload (#1542391)

automount: ack automount requests even when already mounted (#1535135)
udev: net_id add support for platform bus (ACPI, mostly arm64) devices (#1529633)
journald-native: Fix typo in MANDLOCK message (#1501017)
process-util: make our freeze() routine do something useful (#1540941)
dbus: propagate errors from bus_init_system() and bus_init_api() (#1541061)
bus-util.c: fix TasksMax= property assignment (#1537147)