[systemd-commits] 3 commits - man/systemd.unit.xml src/cgroup.c src/dbus-unit.h src/load-fragment-gperf.gperf.m4 src/manager.c src/service.c src/shutdown.c src/unit.c src/unit.h

Lennart Poettering lennart at kemper.freedesktop.org
Tue Jan 10 17:53:14 PST 2012


 man/systemd.unit.xml             |   16 ++++++++++++++++
 src/cgroup.c                     |    3 +++
 src/dbus-unit.h                  |    6 ++++++
 src/load-fragment-gperf.gperf.m4 |    2 ++
 src/manager.c                    |   18 +++++++++++++++++-
 src/service.c                    |   10 ++++++++++
 src/shutdown.c                   |    4 +++-
 src/unit.c                       |    8 ++++++--
 src/unit.h                       |    4 ++++
 9 files changed, 67 insertions(+), 4 deletions(-)

New commits:
commit 4dcc1cb4155c4a72155e36a5461ab0847d4f1bf1
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Jan 11 02:47:14 2012 +0100

    unit: implement new PropagateReloadTo=/PropagateReloadFrom= operations

diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 897f99f..30559b9 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -510,6 +510,22 @@
                         </varlistentry>
 
                         <varlistentry>
+                                <term><varname>PropagateReloadTo=</varname></term>
+                                <term><varname>PropagateReloadFrom=</varname></term>
+
+                                <listitem><para>Lists one or more
+                                units where reload requests on the
+                                unit will be propagated to/on the
+                                other unit will be propagated
+                                from. Issuing a reload request on a
+                                unit will automatically also enqueue a
+                                reload request on all units that the
+                                reload request shall be propagated to
+                                via these two
+                                settings.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
                                 <term><varname>OnFailureIsolate=</varname></term>
 
                                 <listitem><para>Takes a boolean
diff --git a/src/dbus-unit.h b/src/dbus-unit.h
index 20d5506..7a43410 100644
--- a/src/dbus-unit.h
+++ b/src/dbus-unit.h
@@ -80,6 +80,10 @@
         "  <property name=\"Before\" type=\"as\" access=\"read\"/>\n"   \
         "  <property name=\"After\" type=\"as\" access=\"read\"/>\n"    \
         "  <property name=\"OnFailure\" type=\"as\" access=\"read\"/>\n"    \
+        "  <property name=\"Triggers\" type=\"as\" access=\"read\"/>\n"    \
+        "  <property name=\"TriggeredBy\" type=\"as\" access=\"read\"/>\n"    \
+        "  <property name=\"PropagateReloadTo\" type=\"as\" access=\"read\"/>\n" \
+        "  <property name=\"PropagateReloadFrom\" type=\"as\" access=\"read\"/>\n" \
         "  <property name=\"Description\" type=\"s\" access=\"read\"/>\n" \
         "  <property name=\"LoadState\" type=\"s\" access=\"read\"/>\n" \
         "  <property name=\"ActiveState\" type=\"s\" access=\"read\"/>\n" \
@@ -143,6 +147,8 @@
         { "org.freedesktop.systemd1.Unit", "OnFailure",            bus_unit_append_dependencies,   "as",   u->meta.dependencies[UNIT_ON_FAILURE] }, \
         { "org.freedesktop.systemd1.Unit", "Triggers",             bus_unit_append_dependencies,   "as",   u->meta.dependencies[UNIT_TRIGGERS] }, \
         { "org.freedesktop.systemd1.Unit", "TriggeredBy",          bus_unit_append_dependencies,   "as",   u->meta.dependencies[UNIT_TRIGGERED_BY] }, \
+        { "org.freedesktop.systemd1.Unit", "PropagateReloadTo",    bus_unit_append_dependencies,   "as",   u->meta.dependencies[UNIT_PROPAGATE_RELOAD_TO] }, \
+        { "org.freedesktop.systemd1.Unit", "PropagateReloadFrom",  bus_unit_append_dependencies,   "as",   u->meta.dependencies[UNIT_PROPAGATE_RELOAD_FROM] }, \
         { "org.freedesktop.systemd1.Unit", "Description",          bus_unit_append_description,    "s",    u                                 }, \
         { "org.freedesktop.systemd1.Unit", "LoadState",            bus_unit_append_load_state,     "s",    &u->meta.load_state               }, \
         { "org.freedesktop.systemd1.Unit", "ActiveState",          bus_unit_append_active_state,   "s",    u                                 }, \
diff --git a/src/load-fragment-gperf.gperf.m4 b/src/load-fragment-gperf.gperf.m4
index 81e186c..11e6324 100644
--- a/src/load-fragment-gperf.gperf.m4
+++ b/src/load-fragment-gperf.gperf.m4
@@ -100,6 +100,8 @@ Unit.Conflicts,                  config_parse_unit_deps,             UNIT_CONFLI
 Unit.Before,                     config_parse_unit_deps,             UNIT_BEFORE,                   0
 Unit.After,                      config_parse_unit_deps,             UNIT_AFTER,                    0
 Unit.OnFailure,                  config_parse_unit_deps,             UNIT_ON_FAILURE,               0
+Unit.PropagateReloadTo,          config_parse_unit_deps,             UNIT_PROPAGATE_RELOAD_TO,      0
+Unit.PropagateReloadFrom,        config_parse_unit_deps,             UNIT_PROPAGATE_RELOAD_FROM,    0
 Unit.StopWhenUnneeded,           config_parse_bool,                  0,                             offsetof(Meta, stop_when_unneeded)
 Unit.RefuseManualStart,          config_parse_bool,                  0,                             offsetof(Meta, refuse_manual_start)
 Unit.RefuseManualStop,           config_parse_bool,                  0,                             offsetof(Meta, refuse_manual_stop)
diff --git a/src/manager.c b/src/manager.c
index 7fd860e..dbcd630 100644
--- a/src/manager.c
+++ b/src/manager.c
@@ -1610,7 +1610,9 @@ static int transaction_add_job_and_dependencies(
                                                 dbus_error_free(e);
                                 }
 
-                } else if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) {
+                }
+
+                if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) {
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRED_BY], i)
                                 if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) {
@@ -1633,6 +1635,20 @@ static int transaction_add_job_and_dependencies(
                                 }
                 }
 
+                if (type == JOB_RELOAD || type == JOB_RELOAD_OR_START) {
+
+                        SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_PROPAGATE_RELOAD_TO], i) {
+                                r = transaction_add_job_and_dependencies(m, JOB_RELOAD, dep, ret, false, override, false, false, ignore_order, e, NULL);
+
+                                if (r < 0) {
+                                        log_warning("Cannot add dependency reload job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
+                        }
+                }
+
                 /* JOB_VERIFY_STARTED, JOB_RELOAD require no dependency handling */
         }
 
diff --git a/src/unit.c b/src/unit.c
index 3b476a8..e07d2c1 100644
--- a/src/unit.c
+++ b/src/unit.c
@@ -1539,7 +1539,9 @@ int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_referen
                 [UNIT_REFERENCES] = UNIT_REFERENCED_BY,
                 [UNIT_REFERENCED_BY] = UNIT_REFERENCES,
                 [UNIT_TRIGGERS] = UNIT_TRIGGERED_BY,
-                [UNIT_TRIGGERED_BY] = UNIT_TRIGGERS
+                [UNIT_TRIGGERED_BY] = UNIT_TRIGGERS,
+                [UNIT_PROPAGATE_RELOAD_TO] = UNIT_PROPAGATE_RELOAD_FROM,
+                [UNIT_PROPAGATE_RELOAD_FROM] = UNIT_PROPAGATE_RELOAD_TO
         };
         int r, q = 0, v = 0, w = 0;
 
@@ -2663,7 +2665,9 @@ static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = {
         [UNIT_REFERENCED_BY] = "ReferencedBy",
         [UNIT_ON_FAILURE] = "OnFailure",
         [UNIT_TRIGGERS] = "Triggers",
-        [UNIT_TRIGGERED_BY] = "TriggeredBy"
+        [UNIT_TRIGGERED_BY] = "TriggeredBy",
+        [UNIT_PROPAGATE_RELOAD_TO] = "PropagateReloadTo",
+        [UNIT_PROPAGATE_RELOAD_FROM] = "PropagateReloadFrom"
 };
 
 DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency);
diff --git a/src/unit.h b/src/unit.h
index 4d83309..19314d6 100644
--- a/src/unit.h
+++ b/src/unit.h
@@ -124,6 +124,10 @@ enum UnitDependency {
         UNIT_TRIGGERS,
         UNIT_TRIGGERED_BY,
 
+        /* Propagate reloads */
+        UNIT_PROPAGATE_RELOAD_TO,
+        UNIT_PROPAGATE_RELOAD_FROM,
+
         /* Reference information for GC logic */
         UNIT_REFERENCES,              /* Inverse of 'references' is 'referenced_by' */
         UNIT_REFERENCED_BY,

commit bd1a69818042e85e24ec3adaf5eb3ac30ab1d9fd
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Jan 11 01:51:52 2012 +0100

    shutdown: add link to root storage daemon text

diff --git a/src/shutdown.c b/src/shutdown.c
index 46b5aea..d157e0f 100644
--- a/src/shutdown.c
+++ b/src/shutdown.c
@@ -81,7 +81,9 @@ static bool ignore_proc(pid_t pid) {
                 return true;
 
         /* Processes with argv[0][0] = '@' we ignore from the killing
-         * spree. */
+         * spree.
+         *
+         * http://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons */
         if (count == 1 && c == '@')
                 return true;
 

commit 8f53a7b8ea9ba505f8fefe4df4aaa5a8aab1e2eb
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Jan 11 01:51:32 2012 +0100

    service: brutally slaughter processes that are running in the cgroup when we enter START_PRE and START

diff --git a/src/cgroup.c b/src/cgroup.c
index 4bbb54f..9680cd6 100644
--- a/src/cgroup.c
+++ b/src/cgroup.c
@@ -197,6 +197,9 @@ int cgroup_bonding_kill_list(CGroupBonding *first, int sig, bool sigcont, Set *s
         Set *allocated_set = NULL;
         int ret = -EAGAIN, r;
 
+        if (!first)
+                return 0;
+
         if (!s)
                 if (!(s = allocated_set = set_new(trivial_hash_func, trivial_compare_func)))
                         return -ENOMEM;
diff --git a/src/service.c b/src/service.c
index 0110c9f..113be34 100644
--- a/src/service.c
+++ b/src/service.c
@@ -2021,6 +2021,11 @@ static void service_enter_start(Service *s) {
         else
                 service_unwatch_main_pid(s);
 
+        /* We want to ensure that nobody leaks processes from
+         * START_PRE here, so let's go on a killing spree, People
+         * should not spawn long running processes from START_PRE. */
+        cgroup_bonding_kill_list(s->meta.cgroup_bondings, SIGKILL, true, NULL);
+
         if (s->type == SERVICE_FORKING) {
                 s->control_command_id = SERVICE_EXEC_START;
                 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
@@ -2090,6 +2095,11 @@ static void service_enter_start_pre(Service *s) {
         service_unwatch_control_pid(s);
 
         if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
+
+                /* Before we start anything, let's clear up what might
+                 * be left from previous runs. */
+                cgroup_bonding_kill_list(s->meta.cgroup_bondings, SIGKILL, true, NULL);
+
                 s->control_command_id = SERVICE_EXEC_START_PRE;
 
                 if ((r = service_spawn(s,



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