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Commit Graph

11113 Commits

Author SHA1 Message Date
Lennart Poettering
1183f9b225 man: network.target is also a passive target 2013-03-27 02:56:32 +01:00
Auke Kok
b0640287f7 readahead: cleanups
- check for OOM
- no need to use floats and round()
2013-03-26 11:35:27 -07:00
Auke Kok
94243ef299 readahead: chunk on spinning media
Readahead has all sorts of bad side effects depending on your
storage media. On rotating disks, it may be degrading startup
performance if enough requests are queued spanning linearly
over all blocks early at boot, and mount, blkid and friends
want to insert reads to the start of these block devices after.

The end result is that on spinning disks with ext3/4 that udev
and mounts take a very long time, and nothing really happens until
readahead is completely finished.

This has the net effect that the CPU is almost entirely idle
for the entire period that readahead is working. We could have
finished starting up quite a lot of services in this time if
we were smarter at how we do readahead.

This patch sorts all requests into 2 second "chunks" and sub-sorts
each chunk by block. This adds a single cross-drive seek per "chunk"
but has the benefit that we will have a lot of the blocks we need
early on in the boot sequence loaded into memory faster.

For a comparison of how before/after bootcharts look (ext4 on a
mobile 5400rpm 250GB drive) please look at:

    http://foo-projects.org/~sofar/blocked-tests/

There are bootcharts in the "before" and "after" folders where you
should be able to see that many low-level services finish 5-7
seconds earlier with the patch applied (after).
2013-03-26 10:32:32 -07:00
Zbigniew Jędrzejewski-Szmek
a87197f5a2 NEWS: tweak grammar 2013-03-26 11:56:01 -04:00
Lennart Poettering
efc0ac6af6 NEWS: typo fix 2013-03-26 15:51:57 +01:00
Lennart Poettering
03e1151676 build-sys: bump version and .so revisions 2013-03-26 15:43:43 +01:00
Lennart Poettering
74b1c37174 cryptsetup: when prompting for password use GPT partition label
If there's a GPT partition label set for a LUKS partition, then it's
nicer to show that than the model number, when asking for a passphrase.
2013-03-26 15:24:44 +01:00
Lennart Poettering
dfebfe67dd man: document that the passive units cannot be pulled in mnaully 2013-03-26 15:24:44 +01:00
Harald Hoyer
a87586a171 fstab-generator: drop x-initrd.rootfs mount option
x-initrd.mount now has different meanings, if fstab-generator is called
in the initramfs.

initrd:/etc/fstab and x-initrd.mount defines mounts for the
initrd-root-fs.target

initrd:/sysroot/etc/fstab and x-initrd.mount defines mounts for the
initrd-fs.target
2013-03-26 15:39:29 +01:00
Lennart Poettering
6a9280cc60 units: disallow manual starting of passive units
As passive units only are useful for ordering things within the initial
transaction there is no point in ever activating them manually, hence
refuse it.
2013-03-26 15:15:39 +01:00
Harald Hoyer
4e5ed9b69b fstab-generator: degrade the message about missing "root=" to log_debug
Some installation media (fedora at least) does not have and need a
"root=" argument on the kernel command line.
2013-03-26 14:46:35 +01:00
Martin Pitt
9717120e59 Drop src/login/uaccess.c, dead code
This moved to src/udev/udev-builtin-uaccess.c a while ago.
2013-03-26 13:28:49 +01:00
Lennart Poettering
5a0f6033be bus: fix missing variable initialization 2013-03-26 03:42:03 +01:00
Lennart Poettering
b56c267ffb modules-load: there's really no point in mentioning that a certain modules is already loaded
After all, this runs in parallel to udev, so there's quite a chance it
already is....
2013-03-26 03:13:41 +01:00
Lennart Poettering
62cfa9da28 build-sys: make gcc shut up 2013-03-26 03:03:13 +01:00
Lennart Poettering
810bc2e3d5 build-sys: ship missing unit file 2013-03-26 02:49:11 +01:00
Lennart Poettering
ab9a2ef00b units: downgrade dependency on sockets.target/timers.target/paths.target by basic.target
There isn't really any need to require any targets but sysinit.target
from basic.target, so downgrade sockets.target, paths.target,
timers.target.
2013-03-26 02:32:23 +01:00
Lennart Poettering
d65ddaa40e bus: when we are talking to a bus, SCM_CREDS/SCM_SECLABEL are not very useful 2013-03-26 02:19:34 +01:00
Lennart Poettering
0a72c2bdef bus: automatically generate minimal introspection data to find installed objects 2013-03-26 02:19:34 +01:00
Lennart Poettering
94bbf1ba6d bus: rename send_hello flag to bus_cient
This way we can hide more than just the hello logic behind this flag,
for example, later on automatic match management.
2013-03-26 02:19:34 +01:00
Kay Sievers
06f4289808 build-sys: create kernel/install.d directories 2013-03-26 01:00:14 +01:00
Kay Sievers
c20d829802 NEWS: update 2013-03-26 00:41:39 +01:00
Lennart Poettering
e32530cbef cryptsetup-generator: let's be a bit more efficient with strv_extend() 2013-03-25 23:51:32 +01:00
Lennart Poettering
608d41f355 cryptsetup-generator: add a missing OOM check 2013-03-25 23:49:13 +01:00
Lennart Poettering
6a7d3d68bf update NEWS 2013-03-25 23:48:08 +01:00
Lennart Poettering
3591145941 prepare NEWS for 199 2013-03-25 23:05:21 +01:00
Lennart Poettering
e06e62f4a1 man: properly document the system targets that are also available for the user instance 2013-03-25 22:33:08 +01:00
Lennart Poettering
54f874c56b man: rearrange systemd.special(7) to clarify which units are passive and which ones aren't
This also adds a short explanation paragraph for this.
2013-03-25 22:33:08 +01:00
Lennart Poettering
627506f104 units: there is no point in pulling in ordering 'provides'-style targets
Units such as nss-lookup.target, nss-user-lookup.target,
remote-fs-pre.target, local-fs-pre.target, time-sync.target,
rpcbind.target are to be pulled in by the implementing services, and
that's there only purpose. They should not have any 'active component'
otherwise, so let's drop all further deps from these units.
2013-03-25 22:10:35 +01:00
Lennart Poettering
752beb0c85 update TODO 2013-03-25 22:09:53 +01:00
Lennart Poettering
e8d2f6cde0 units: introduce remote-fs-setup.target to pull in dependencies from remote mounts
This introduces remote-fs-setup.target independently of
remote-fs-pre.target. The former is only for pulling things in, the
latter only for ordering.

The new semantics:

remote-fs-setup.target: is pulled in automatically by all remote mounts.
Shall be used to pull in other units that want to run when at least one
remote mount is set up. Is not ordered against the actual mount units,
in order to allow activation of its dependencies even 'a posteriori',
i.e. when a mount is established outside of systemd and is only picked
up by it.

remote-fs-pre.target: needs to be pulled in automatically by the
implementing service, is otherwise not part of the initial transaction.
This is ordered before all remote mount units.

A service that wants to be pulled in and run before all remote mounts
should hence have:

a) WantedBy=remote-fs-setup.target -- so that it is pulled in

b) Wants=remote-fs-pre.target + Before=remote-fs-pre.target -- so that
   it is ordered before the mount point, normally.
2013-03-25 22:04:40 +01:00
Lennart Poettering
a69fe051b8 Revert "remote-fs.target: want remote-fs-pre.target"
This reverts commit 6bde0b3220.

We should not pull in remote-fs-pre.target unconditionally. It's
supposed to be pulled in by the implementors of it, rather then its
users.
2013-03-25 21:29:58 +01:00
Lennart Poettering
b17959153a units: and also, order all early-boot sockets before sockets.target 2013-03-25 21:29:09 +01:00
Lennart Poettering
b0afe214c0 units: order all udev services before sysinit.target, too
Not that it would matter much, but let's make things a bit more
systematic: early boot services shall order themselves before
sysinit.target, and nothing else.
2013-03-25 21:29:09 +01:00
Lennart Poettering
ee64428ec2 update TODO 2013-03-25 21:29:09 +01:00
Lennart Poettering
e3d84721dc units: introduce new timers.target and paths.target to hook timer/path units into for boot 2013-03-25 21:28:30 +01:00
Mantas Mikulėnas
1b036593b7 fstab-generator: add missing strempty() calls 2013-03-25 20:14:29 +01:00
Kay Sievers
5ec6b15b65 build-sys: add missing sed substitution for DEBUGTTY 2013-03-25 19:28:00 +01:00
Umut Tezduyar
d95fd3df59 build-sys: configurable debug shell tty path 2013-03-25 18:40:38 +01:00
Lennart Poettering
80c39ad27f fstab-generator: fix minor memory leak on error path 2013-03-25 18:20:03 +01:00
Lennart Poettering
df3e57f542 fstab-generator: add missing OOM check 2013-03-25 18:20:03 +01:00
Lennart Poettering
790838e4f1 fstab-generator: rename x-initrd-rootfs.mount to x-initrd.rootfs
This changes the fstab mount option x-initrd-rootfs.mount to
x-initrd.rootfs, in order to only use a single namespace "x-initrd." for
all mount options of the initrd.
2013-03-25 18:18:11 +01:00
Lennart Poettering
eece8c6fb5 update TODO 2013-03-25 18:17:15 +01:00
Oleksii Shevchuk
26687bf8a9 journal: Add sync timer to journal server
Add option to force journal sync with fsync. Default timeout is 5min.
Interval configured via SyncIntervalSec option at journal.conf. Synced
journal files will be marked as OFFLINE.

Manual sync can be performed via sending SIGUSR1.
2013-03-25 17:51:06 +01:00
Lennart Poettering
a9602630c6 update TODO 2013-03-25 17:26:15 +01:00
Frederic Crozat
ce2c226537 core: ensure LSB Provides are handled correctly
Let's say you have two initscripts, A and B:

A contains in its LSB header:
Required-Start: C

and B contains in its LSB header:
Provides: C

When systemd is parsing /etc/rc.d/, depending on the file order, you
can end up with either:
- B is parsed first. An unit "C.service" will be "created" and will be
added as additional name to B.service, with unit_add_name. No bug.
- A is parsed first. An unit "C.service" is created for the
"Required-Start" dependency (it will have no file attached, since
nothing provides this dependency yet). Then B is parsed and when trying
to handle "Provides: C", unit_add_name is called but will fail, because
"C.service" already exists in manager->units. Therefore, a merge should
occur for that case.
2013-03-25 17:26:15 +01:00
Harald Hoyer
8cc3f8c0bc udevd.c: set udev children_max according to CPU count
Setting children_max according to RAM leads to too much concurrent I/O.
2013-03-25 13:11:18 +01:00
Michal Schmidt
c5962bd1d1 timer: downgrade time change message to debug
The manager already prints "Time has been changed" at level info. It
seems too verbose to print the time change message additionally for
every waiting timer unit.

Downgrade the per-unit message to debug.
2013-03-25 12:31:44 +01:00
Lennart Poettering
a7e3212d89 bus: split socket related code into bus-socket.[ch], to prepare for kdbus backend 2013-03-25 03:43:19 +01:00
Lennart Poettering
2fd9ae2e9b bus: implement 'unixexec:' protocol 2013-03-25 02:33:35 +01:00