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2016-05-02core: don't propagate service state to sockets as long as there's still a ↵Lennart Poettering
job for the service queued
2016-05-02fstab-generator: add newline before we start a new unit file sectionLennart Poettering
We already did this for the [Mount] section, let's do the same for [Automount].
2016-05-02automount: add debug message when we get notified about mount state changesLennart Poettering
2016-05-02core: remove duplicate code in automount_update_mount()Lennart Poettering
Also, fix indentation.
2016-05-02core: simplify unit_need_daemon_reload() a bitLennart Poettering
And let's make it more accurate: if we have acquire the list of unit drop-ins, then let's do a full comparison against the old list we already have, and if things differ in any way, we know we have to reload. This makes sure we detect changes to drop-in directories in more cases.
2016-05-02core: fix detection whether per-unit drop-ins changedLennart Poettering
This fixes fall-out from 6d10d308c6cd16528ef58fa4f5822aef936862d3. Until that commit, do determine whether a daemon reload was required we compare the mtime of the main unit file we loaded with the mtime of it on disk for equality, but for drop-ins we only stored the newest mtime of all of them and then did a "newer-than" comparison. This was brokeni with the above commit, when all checks where changed to be for equality. With this change all checks are now done as "newer-than", fixing the drop-in mtime case. Strictly speaking this will not detect a number of changes that the code before above commit detected, but given that the mtime is unlikely to go backwards, and this is just intended to be a helpful hint anyway, this looks OK in order to keep things simple. Fixes: #3123
2016-05-02core: move enforcement of the start limit into per-unit-type code againLennart Poettering
Let's move the enforcement of the per-unit start limit from unit.c into the type-specific files again. For unit types that know a concept of "result" codes this allows us to hook up the start limit condition to it with an explicit result code. Also, this makes sure that the state checks in clal like service_start() may be done before the start limit is checked, as the start limit really should be checked last, right before everything has been verified to be in order. The generic start limit logic is left in unit.c, but the invocation of it is moved into the per-type files, in the various xyz_start() functions, so that they may place the check at the right location. Note that this change drops the enforcement entirely from device, slice, target and scope units, since these unit types generally may not fail activation, or may only be activated a single time. This is also documented now. Note that restores the "start-limit-hit" result code that existed before 6bf0f408e4833152197fb38fb10a9989c89f3a59 already in the service code. However, it's not introduced for all units that have a result code concept. Fixes #3166.
2016-05-02util: don't dump /proc/cpuinfo contents in debug infoLennart Poettering
This is hardly useful, it's trivial for developers to get that info by running cat /proc/cpuinfo. Fixes #3155
2016-05-02machinectl: since clone/remove/copy verbs are possibly slow, turn off bus ↵Lennart Poettering
call timeout By default we timeout all bus calls, but if we know that these bus calls might be slow, let's explicitly turn the timeouts off.
2016-05-02machined: rework copy-from/copy-to operation to use generic Operation objectLennart Poettering
With this all potentially slow operations are done out-of-process, asynchronously, using the same "Operation" object.
2016-05-02machined: also make image removal operation asynchronousLennart Poettering
If we remove a directory image (i.e. not a btrfs snapshot) then things might get quite expensive, hence run this asynchronous in a forked off process, too.
2016-05-02machined: support non-btrfs file systems with "machinectl clone"Lennart Poettering
Fall back to a normal copy operation when the backing file system isn't btrfs, and hence doesn't support cheap snapshotting. Of course, this will be slow, but given that the execution is asynchronous now, this should be OK. Fixes: #1308
2016-05-02tree-wide: fix invocations of chattr_path()Lennart Poettering
chattr_path() takes two bitmasks, and no booleans. Fix the various invocations to do this properly.
2016-05-02copy: adjust directory times after writing to the directoryLennart Poettering
When recursively copying a directory tree, fix up the file times after having created all contents in it, so that our changes don't end up altering any of the directory times.
2016-05-02copy: return the right error when we can't open a fileLennart Poettering
2016-05-02image: enable btrfs quotas on the clone destination, not the sourceLennart Poettering
2016-05-02util: rework sigkill_wait() to not require pid_t pointerLennart Poettering
Let's make sigkill_wait() take a normal pid_t, and add sigkill_waitp() that takes a pointer (which is useful for usage in _cleanup_), following the usual logic we have for this.
2016-05-02machined: run clone operation asynchronously in the backgroundLennart Poettering
Cloning an image can be slow, if the image is not on a btrfs subvolume, hence let's make sure we do this asynchronously in a child process, so that machined isn't blocked as long as we process the client request. This adds a new, generic "Operation" object to machined, that is used to track these kind of background processes. This is inspired by the MachineOperation object that already exists to make copy operations asynchronous. A later patch will rework the MachineOperation logic to use the generic Operation instead.
2016-05-01shared/install: refuse template files for non-templateable unitsZbigniew Jędrzejewski-Szmek
$ systemctl --root=/ enable templated@bar.mount Unit type mount cannot be templated. Failed to enable: Invalid argument.
2016-05-01shared/install: warn about DefaultInstance in non-template unitsZbigniew Jędrzejewski-Szmek
[/etc/systemd/system/mnt-test.mount:6] DefaultInstance only makes sense for template units, ignoring.
2016-05-01Move no_instances information to shared/Zbigniew Jędrzejewski-Szmek
This way it can be used in install.c in subsequent commit.
2016-05-01shared/install: ignore Alias in [Install] of units which don't allow aliasesZbigniew Jędrzejewski-Szmek
A downside is that a warning about missing [Install] is printed: $ systemctl --root=/ enable mnt-test.mount [/etc/systemd/system/mnt-test.mount:5] Aliases are not allowed for mount units, ignoring. The unit files have no installation config (WantedBy, RequiredBy, Also, Alias settings in the [Install] section, and DefaultInstance for template units). This means they are not meant to be enabled using systemctl. Possible reasons for having this kind of units are: 1) A unit may be statically enabled by being symlinked from another unit's .wants/ or .requires/ directory. 2) A unit's purpose may be to act as a helper for some other unit which has a requirement dependency on it. 3) A unit may be started when needed via activation (socket, path, timer, D-Bus, udev, scripted systemctl call, ...). 4) In case of template units, the unit is meant to be enabled with some instance name specified. That's a bit misleading, but I don't see an easy way to fix this. But the situation is similar for many other parsing errors, so maybe that's OK.
2016-05-01Move no_alias information to shared/Zbigniew Jędrzejewski-Szmek
This way it can be used in install.c in subsequent commit.
2016-05-01test: ensure presets are evaluated in orderAlex Crawford
This tests to make sure that preset patterns are checked in the order they were declared. Both "prefix-1.service" and "prefix-2.service" match against two rules: their exact name (which enables the service) and "prefix-*.service" (which disables the service). Because of the ordering, only "prefix-1.service" should be enabled.
2016-04-30Merge pull request #3152 from poettering/aliasfixZbigniew Jędrzejewski-Szmek
Refuse aliases to non-aliasable units in more places Fixes #2730.
2016-04-30architecture: Add nios2 (#3159)Zbigniew Jędrzejewski-Szmek
Add nios2 architecture support. The nios2 is a softcore by Altera.
2016-04-30core: make unit_has_mask_realized() consider controller enable stateTejun Heo
unit_has_mask_realized() determines whether the specified unit has its cgroups set up properly given the desired target_mask; however, on the unified hierarchy, controllers need to be enabled explicitly for children and the mask of enabled controllers can deviate from target_mask. Only considering target_mask in unit_has_mask_realized() can lead to false positives and skipping enabling the requested controllers. This patch adds unit->cgroup_enabled_mask to track which controllers are enabled and updates unit_has_mask_realized() to also consider enable_mask. Signed-off-by: Tejun Heo <htejun@fb.com>
2016-04-30core: bus_append_unit_property_assignment() was using the wrong parse functionTejun Heo
It was incorrectly using cg_cpu_weight_parse() to parse BlockIOWeight. Update it to use cg_blkio_weight_parse() instead. Signed-off-by: Tejun Heo <htejun@fb.com>
2016-04-29networkd: rework headers to avoid circular includesZbigniew Jędrzejewski-Szmek
Header files were organized in a way where the includer would add various typedefs used by the includee before including it, resulting in a tangled web of dependencies between files. Replace this with the following logic: networkd.h / \ networkd-link.h \ networkd-ipv4ll.h--\__\ networkd-fdb.h \ networkd-network.h netword-netdev-*.h networkd-route.h \ networkd-netdev.h If a pointer to a structure defined in a different header file is needed, use a typedef line instead of including the whole header.
2016-04-29Merge pull request #3151 from keszybz/pr3149-2Zbigniew Jędrzejewski-Szmek
Assorted fixes #3149 + one commit tacked on top
2016-04-29core: when encountering a symlink alias for non-aliasable units warn nicelyLennart Poettering
If the user defines a symlink alias for a unit whose type does not support aliasing, detect this early and print a nice warning. Fixe: #2730
2016-04-29hashmap: optimize set_put_strdup() a bitLennart Poettering
Hashing should be quicker than allocating, hence let's first check if the string already exists and only then allocate a new copy for it.
2016-04-29core: refuse merging on units when the unit type does not support aliasLennart Poettering
The concept of merging units exists so that we can create Unit objects for a number of names early, and then load them only later, possibly merging units which then turn out to be symlinked to other names. This of course only makes sense for unit types where multiple names per unit are supported. For all others, let's refuse the merge operation early.
2016-04-29core: merge service_connection_unref() into service_close_socket_fd()Lennart Poettering
We always call one after the other anyway, and this way service_set_socket_fd() and service_close_socket_fd() nicely match each other as one undoes the effect of the other.
2016-04-29core: rerun GC logic for a unit that loses a referenceLennart Poettering
Let's make sure when we drop a reference to a unit, that we run the GC queue on it again. This (together with the previous commit) should deal with the GC issues pointed out in: https://github.com/systemd/systemd/pull/2993#issuecomment-215331189
2016-04-29core: rework socket/service GC logicLennart Poettering
There's no need to set the no_gc bit for service units that socket units prepare, as we always keep a proper reference (as maintained by unit_ref_set()) on them, and such references are honoured by the GC logic anyway. Moreover, explicitly setting the no_gc bit is problematic if the socket gets GC'ed for a reason, as the service might then leak with the bit set.
2016-04-29socket: really always close auxiliary fds when closing socket fdsLennart Poettering
2016-04-29core: make parsing of RLIMIT_NICE aware of actual nice levelsLennart Poettering
2016-04-29core: make sure to close connection fd when we fail to activate a ↵Lennart Poettering
per-connection service Fixes: #2993 #2691
2016-04-29core: minor error path fixLennart Poettering
In service_set_socket_fd(), let's make sure that if we can't add the requested dependencies we take no possession of the passed connection fd. This way, we follow the strict rule: we take possession of the passed fd on success, but on failure we don't, and the fd remains in possession of the caller.
2016-04-29core: rename StartLimitInterval= to StartLimitIntervalSec=Lennart Poettering
We generally follow the rule that for time settings we suffix the setting name with "Sec" to indicate the default unit if none is specified. The only exception was the rate limiting interval settings. Fix this, and keep the old names for compatibility. Do the same for journald's RateLimitInterval= setting
2016-04-29core: move start ratelimiting check after condition checksLennart Poettering
With #2564 unit start rate limiting was moved from after the condition checks are to before they are made, in an attempt to fix #2467. This however resulted in #2684. However, with a previous commit a concept of per socket unit trigger rate limiting has been added, to fix #2467 more comprehensively, hence the start limit can be moved after the condition checks again, thus fixing #2684. Fixes: #2684
2016-04-29core: introduce activation rate limiting for socket unitsLennart Poettering
This adds two new settings TriggerLimitIntervalSec= and TriggerLimitBurst= that define a rate limit for activation of socket units. When the limit is hit, the socket is is put into a failure mode. This is an alternative fix for #2467, since the original fix resulted in issue #2684. In a later commit the StartLimitInterval=/StartLimitBurst= rate limiter will be changed to be applied after any start conditions checks are made. This way, there are two separate rate limiters enforced: one at triggering time, before any jobs are queued with this patch, as well as the start limit that is moved again to be run immediately before the unit is activated. Condition checks are done in between the two, and thus no longer affect the start limit.
2016-04-29build-sys: improve compat with older kernel headersLennart Poettering
In 4.2 kernel headers, some netlink defines are missing that we need. missing.h already can add them in, but currently makes this dependent on a definition that these kernels already have. Change the check hence to check for the newest definition in the table, so that the whole bunch of definitions as added in on all kernels lacking this.
2016-04-29path-util: also support ".old" and ".new" suffixes and recommend themZbigniew Jędrzejewski-Szmek
~ suffix works fine, but looks to much like it the file is supposed to be automatically cleaned up. For new versions of configuration files installers might want to using something that looks more permanent like foobar.new. So let's add treat ".old" and ".new" as special. Update test to match.
2016-04-29core: Filter by unit name behind the D-Bus, instead on the client side (#3142)kayrus
This commit improves systemd performance on the systems which have thousands of units.
2016-04-29Merge pull request #3126 from poettering/small-fixesZbigniew Jędrzejewski-Szmek
fsync directory when creating or rotating journal files and other small fixes, most importantly for the DHCP DUID code.
2016-04-29test-copy: never call alloca() in a loopLennart Poettering
That's a total no-no, hence rework this to use malloc()-based memory instead of alloca()-based memory. Also see CODING_STYLE about this.
2016-04-29copy: also copy AF_UNIX socketsLennart Poettering
We previously would fail with EOPNOTSUPP when encountering an AF_UNIX socket in the directory tree to copy. Fix that, and copy them too (even if they are dead in the result). Fixes: #2914
2016-04-29path-util: document that we shouldn't add further entries to ↵Lennart Poettering
hidden_or_backup_file() And let's add ".bak" as a generic suffix for backups, that people can use without having to register their stuff in our list.