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Tejun Heo 538b48524c core: translate between IO and BlockIO settings to ease transition 
Due to the substantial interface changes in cgroup unified hierarchy, new IO
settings are introduced.  Currently, IO settings apply only to unified
hierarchy and BlockIO to legacy.  While the transition is necessary, it's
painful for users to have to provide configs for both.  This patch implements
translation from one config set to another for configs which make sense.

* The translation takes place during application of the configs.  Users won't
  see IO or BlockIO settings appearing without being explicitly created.

* The translation takes place only if there is no config for the matching
  cgroup hierarchy type at all.

While this doesn't provide comprehensive compatibility, it should considerably
ease transition to the new IO settings which are a superset of BlockIO
settings.

v2:

- Update test-cgroup-mask.c so that it accounts for the fact that
  CGROUP_MASK_IO and CGROUP_MASK_BLKIO move together.  Also, test/parent.slice
  now sets IOWeight instead of BlockIOWeight.
2016-05-18 17:35:12 -07:00
..
ac-power tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
activate activate: improve SIGCHLD handler 2016-04-05 14:34:04 +00:00
analyze tree-wide: rename draw_special_char to special_glyph 2016-05-09 15:17:57 -04:00
ask-password ask-password: add option --no-output to not print password to stdout 2016-03-01 19:02:11 +01:00
backlight tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
basic core: add support for IOReadIOPSMax and IOWriteIOPSMax 2016-05-18 13:50:56 -07:00
binfmt tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
boot tree-wide: rename draw_special_char to special_glyph 2016-05-09 15:17:57 -04:00
cgls shared: drop kernel_thread bool from cgroups show code 2016-04-22 16:06:20 +02:00
cgroups-agent tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere 2016-05-05 22:24:36 +02:00
cgtop core: add io controller support on the unified hierarchy 2016-05-05 16:43:06 -04:00
core core: translate between IO and BlockIO settings to ease transition 2016-05-18 17:35:12 -07:00
coredump coredump: use next_datagram_size_fd instead of ioctl(FIONREAD) (#3237) 2016-05-11 14:29:24 +02:00
cryptsetup cryptsetup: do not 'fail' if trying to detach a nonexistent device 2016-04-01 20:51:20 +02:00
dbus1-generator tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
debug-generator tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
delta tree-wide: rename draw_special_char to special_glyph 2016-05-09 15:17:57 -04:00
detect-virt tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
escape tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
firstboot tree-wide: rename draw_special_char to special_glyph 2016-05-09 15:17:57 -04:00
fsck tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere 2016-05-05 22:24:36 +02:00
fstab-generator Create initrd-root-device.target synchronization point (#3239) 2016-05-12 18:42:39 +02:00
getty-generator tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
gpt-auto-generator Create initrd-root-device.target synchronization point (#3239) 2016-05-12 18:42:39 +02:00
hibernate-resume tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hostname selinux: always try to load the full selinux db 2016-03-01 20:39:30 -05:00
hwdb
import tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere 2016-05-05 22:24:36 +02:00
initctl tree-wide: make ++/-- usage consistent WRT spacing 2016-02-22 20:32:04 -08:00
journal journald: stack allocation cannot fail 2016-05-05 22:26:09 +02:00
journal-remote journal-remote : Ensure reallocation of source->buf does not result in source->size < source->filled (#3086) 2016-04-22 14:04:17 -04:00
kernel-install
libsystemd tree-wide: drop spurious "&"s when passing functions around 2016-05-15 19:56:59 -04:00
libsystemd-network networkd: Add EmitRouter= option for DHCP Server (#3251) 2016-05-17 19:34:25 -04:00
libudev include sys/sysmacros.h in more places 2016-03-14 23:29:10 -04:00
locale locale: Language fallbacks for fr_(BE|CA|CH|LU) to fr_FR (#3178) 2016-05-02 19:43:37 -04:00
login logind: introduce LockedHint and SetLockedHint (#3238) 2016-05-11 19:34:13 +02:00
machine machinectl: since clone/remove/copy verbs are possibly slow, turn off bus call timeout 2016-05-02 11:17:06 +02:00
machine-id-setup tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
modules-load tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
network networkd: do not update state or IPv6LL address if link is failed or lingering 2016-05-17 22:59:56 -04:00
notify tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
nspawn nspawn: drop spurious newline 2016-05-12 20:14:58 +02:00
nss-myhostname nss-myhostname: remove dead test of variable that was not set 2016-04-05 23:19:56 -04:00
nss-mymachines tree-wide: make ++/-- usage consistent WRT spacing 2016-02-22 20:32:04 -08:00
nss-resolve Move nss typedefs into nss-util.h 2016-04-02 20:11:41 -04:00
path tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
quotacheck tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
random-seed tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
rc-local-generator tree-wide: make more global variables static 2016-02-13 12:28:28 +01:00
remount-fs tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
reply-password tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere 2016-05-05 22:24:36 +02:00
resolve treewide: fix typos (#3187) 2016-05-04 11:26:17 +02:00
rfkill tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
run Merge pull request #3094 from poettering/run-slice 2016-04-22 14:04:38 -04:00
shared core: introduce CGroupIOLimitType enums 2016-05-18 13:50:56 -07:00
sleep tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
socket-proxy tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere 2016-05-05 22:24:36 +02:00
stdio-bridge stdio-bridge: Correctly propagate error 2016-02-29 10:45:34 +01:00
sysctl tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
system-update-generator tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
systemctl core: introduce CGroupIOLimitType enums 2016-05-18 13:50:56 -07:00
systemd networkd: Add EmitRouter= option for DHCP Server (#3251) 2016-05-17 19:34:25 -04:00
sysusers selinux: always try to load the full selinux db 2016-03-01 20:39:30 -05:00
sysv-generator tree-wide: use ERFKILL instead of ESHUTDOWN for "unit masked" 2016-04-16 18:41:34 -04:00
test core: translate between IO and BlockIO settings to ease transition 2016-05-18 17:35:12 -07:00
timedate selinux: always try to load the full selinux db 2016-03-01 20:39:30 -05:00
timesync clock-util: make clock_is_localtime() testable and add initial tests 2016-02-26 11:28:49 +01:00
tmpfiles tmpfiles: add new 'e' action which cleans up a dir without creating it 2016-04-20 09:00:39 -04:00
tty-ask-password-agent tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere 2016-05-05 22:24:36 +02:00
udev tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere 2016-05-05 22:24:36 +02:00
update-done selinux: always try to load the full selinux db 2016-03-01 20:39:30 -05:00
update-utmp tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
user-sessions selinux: always try to load the full selinux db 2016-03-01 20:39:30 -05:00
vconsole vconsole: add log_oom() where appropriate 2016-05-17 10:29:28 +02:00
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