systemd: use unit logging macros

11 files changed, 665 insertions, 335 deletions

diff --git a/src/core/automount.c b/src/core/automount.c
index 74776646f6..4a98540d82 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -180,7 +180,7 @@ static int automount_verify(Automount *a) {
                 return 0;
 
         if (path_equal(a->where, "/")) {
-                log_error("Cannot have an automount unit for the root directory. Refusing.");
+                log_error_unit(UNIT(a)->id, "Cannot have an automount unit for the root directory. Refusing.");
                 return -EINVAL;
         }
 
@@ -192,7 +192,7 @@ static int automount_verify(Automount *a) {
         free(e);
 
         if (!b) {
-                log_error("%s's Where setting doesn't match unit name. Refusing.", UNIT(a)->id);
+                log_error_unit(UNIT(a)->id, "%s's Where setting doesn't match unit name. Refusing.", UNIT(a)->id);
                 return -EINVAL;
         }
 
@@ -258,10 +258,11 @@ static void automount_set_state(Automount *a, AutomountState state) {
                 unmount_autofs(a);
 
         if (state != old_state)
-                log_debug("%s changed %s -> %s",
-                          UNIT(a)->id,
-                          automount_state_to_string(old_state),
-                          automount_state_to_string(state));
+                log_debug_unit(UNIT(a)->id,
+                               "%s changed %s -> %s",
+                               UNIT(a)->id,
+                               automount_state_to_string(old_state),
+                               automount_state_to_string(state));
 
         unit_notify(UNIT(a), state_translation_table[old_state], state_translation_table[state], true);
 }
@@ -455,9 +456,9 @@ int automount_send_ready(Automount *a, int status) {
         }
 
         if (status)
-                log_debug("Sending failure: %s", strerror(-status));
+                log_debug_unit(UNIT(a)->id, "Sending failure: %s", strerror(-status));
         else
-                log_debug("Sending success.");
+                log_debug_unit(UNIT(a)->id, "Sending success.");
 
         r = 0;
 
@@ -579,7 +580,8 @@ fail:
         if (mounted)
                 repeat_unmout(a->where);
 
-        log_error("Failed to initialize automounter: %s", strerror(-r));
+        log_error_unit(UNIT(a)->id,
+                       "Failed to initialize automounter: %s", strerror(-r));
         automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES);
 }
 
@@ -596,7 +598,8 @@ static void automount_enter_runnning(Automount *a) {
         /* We don't take mount requests anymore if we are supposed to
          * shut down anyway */
         if (unit_pending_inactive(UNIT(a))) {
-                log_debug("Suppressing automount request on %s since unit stop is scheduled.", UNIT(a)->id);
+                log_debug_unit(UNIT(a)->id,
+                               "Suppressing automount request on %s since unit stop is scheduled.", UNIT(a)->id);
                 automount_send_ready(a, -EHOSTDOWN);
                 return;
         }
@@ -605,14 +608,18 @@ static void automount_enter_runnning(Automount *a) {
 
         /* Before we do anything, let's see if somebody is playing games with us? */
         if (lstat(a->where, &st) < 0) {
-                log_warning("%s failed to stat automount point: %m", UNIT(a)->id);
+                log_warning_unit(UNIT(a)->id,
+                                 "%s failed to stat automount point: %m", UNIT(a)->id);
                 goto fail;
         }
 
         if (!S_ISDIR(st.st_mode) || st.st_dev != a->dev_id)
-                log_info("%s's automount point already active?", UNIT(a)->id);
+                log_info_unit(UNIT(a)->id,
+                              "%s's automount point already active?", UNIT(a)->id);
         else if ((r = manager_add_job(UNIT(a)->manager, JOB_START, UNIT_DEREF(a->mount), JOB_REPLACE, true, &error, NULL)) < 0) {
-                log_warning("%s failed to queue mount startup job: %s", UNIT(a)->id, bus_error(&error, r));
+                log_warning_unit(UNIT(a)->id,
+                                 "%s failed to queue mount startup job: %s",
+                                 UNIT(a)->id, bus_error(&error, r));
                 goto fail;
         }
 
@@ -630,7 +637,9 @@ static int automount_start(Unit *u) {
         assert(a->state == AUTOMOUNT_DEAD || a->state == AUTOMOUNT_FAILED);
 
         if (path_is_mount_point(a->where, false)) {
-                log_error("Path %s is already a mount point, refusing start for %s", a->where, u->id);
+                log_error_unit(u->id,
+                               "Path %s is already a mount point, refusing start for %s",
+                               a->where, u->id);
                 return -EEXIST;
         }
 
@@ -693,7 +702,7 @@ static int automount_deserialize_item(Unit *u, const char *key, const char *valu
 
                 state = automount_state_from_string(value);
                 if (state < 0)
-                        log_debug("Failed to parse state value %s", value);
+                        log_debug_unit(u->id, "Failed to parse state value %s", value);
                 else
                         a->deserialized_state = state;
         } else if (streq(key, "result")) {
@@ -701,7 +710,7 @@ static int automount_deserialize_item(Unit *u, const char *key, const char *valu
 
                 f = automount_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse result value %s", value);
+                        log_debug_unit(u->id, "Failed to parse result value %s", value);
                 else if (f != AUTOMOUNT_SUCCESS)
                         a->result = f;
 
@@ -709,14 +718,14 @@ static int automount_deserialize_item(Unit *u, const char *key, const char *valu
                 unsigned d;
 
                 if (safe_atou(value, &d) < 0)
-                        log_debug("Failed to parse dev-id value %s", value);
+                        log_debug_unit(u->id, "Failed to parse dev-id value %s", value);
                 else
                         a->dev_id = (unsigned) d;
         } else if (streq(key, "token")) {
                 unsigned token;
 
                 if (safe_atou(value, &token) < 0)
-                        log_debug("Failed to parse token value %s", value);
+                        log_debug_unit(u->id, "Failed to parse token value %s", value);
                 else {
                         if (!a->tokens)
                                 if (!(a->tokens = set_new(trivial_hash_func, trivial_compare_func)))
@@ -730,7 +739,7 @@ static int automount_deserialize_item(Unit *u, const char *key, const char *valu
                 int fd;
 
                 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse pipe-fd value %s", value);
+                        log_debug_unit(u->id, "Failed to parse pipe-fd value %s", value);
                 else {
                         if (a->pipe_fd >= 0)
                                 close_nointr_nofail(a->pipe_fd);
@@ -738,7 +747,7 @@ static int automount_deserialize_item(Unit *u, const char *key, const char *valu
                         a->pipe_fd = fdset_remove(fds, fd);
                 }
         } else
-                log_debug("Unknown serialization key '%s'", key);
+                log_debug_unit(u->id, "Unknown serialization key '%s'", key);
 
         return 0;
 }
@@ -776,13 +785,13 @@ static void automount_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
         assert(fd == a->pipe_fd);
 
         if (events != EPOLLIN) {
-                log_error("Got invalid poll event on pipe.");
+                log_error_unit(u->id, "Got invalid poll event on pipe.");
                 goto fail;
         }
 
         l = loop_read(a->pipe_fd, &packet, sizeof(packet), true);
         if (l != sizeof(packet)) {
-                log_error("Invalid read from pipe: %s", l < 0 ? strerror(-l) : "short read");
+                log_error_unit(u->id, "Invalid read from pipe: %s", l < 0 ? strerror(-l) : "short read");
                 goto fail;
         }
 
@@ -794,20 +803,21 @@ static void automount_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
                         _cleanup_free_ char *p = NULL;
 
                         get_process_comm(packet.v5_packet.pid, &p);
-                        log_debug("Got direct mount request on %s, triggered by %lu (%s)",
-                                  a->where, (unsigned long) packet.v5_packet.pid, strna(p));
+                        log_debug_unit(u->id,
+                                       "Got direct mount request on %s, triggered by %lu (%s)",
+                                       a->where, (unsigned long) packet.v5_packet.pid, strna(p));
                 } else
-                        log_debug("Got direct mount request on %s", a->where);
+                        log_debug_unit(u->id, "Got direct mount request on %s", a->where);
 
                 r = set_ensure_allocated(&a->tokens, trivial_hash_func, trivial_compare_func);
                 if (r < 0) {
-                        log_error("Failed to allocate token set.");
+                        log_error_unit(u->id, "Failed to allocate token set.");
                         goto fail;
                 }
 
                 r = set_put(a->tokens, UINT_TO_PTR(packet.v5_packet.wait_queue_token));
                 if (r < 0) {
-                        log_error("Failed to remember token: %s", strerror(-r));
+                        log_error_unit(u->id, "Failed to remember token: %s", strerror(-r));
                         goto fail;
                 }
 
@@ -815,7 +825,7 @@ static void automount_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
                 break;
 
         default:
-                log_error("Received unknown automount request %i", packet.hdr.type);
+                log_error_unit(u->id, "Received unknown automount request %i", packet.hdr.type);
                 break;
         }
 
diff --git a/src/core/device.c b/src/core/device.c
index be76cafaed..0b01718ad4 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -92,10 +92,10 @@ static void device_set_state(Device *d, DeviceState state) {
         d->state = state;
 
         if (state != old_state)
-                log_debug("%s changed %s -> %s",
-                          UNIT(d)->id,
-                          device_state_to_string(old_state),
-                          device_state_to_string(state));
+                log_debug_unit(UNIT(d)->id,
+                               "%s changed %s -> %s", UNIT(d)->id,
+                               device_state_to_string(old_state),
+                               device_state_to_string(state));
 
         unit_notify(UNIT(d), state_translation_table[old_state], state_translation_table[state], true);
 }
diff --git a/src/core/job.c b/src/core/job.c
index f08b8cbc7d..5ff95f5c90 100644
--- a/src/core/job.c
+++ b/src/core/job.c
@@ -187,8 +187,9 @@ Job* job_install(Job *j) {
                         if (j->type == JOB_NOP || uj->state == JOB_WAITING ||
                             (job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) {
                                 job_merge_into_installed(uj, j);
-                                log_debug("Merged into installed job %s/%s as %u",
-                                          uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
+                                log_debug_unit(uj->unit->id,
+                                               "Merged into installed job %s/%s as %u",
+                                               uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
                                 return uj;
                         } else {
                                 /* already running and not safe to merge into */
@@ -196,8 +197,9 @@ Job* job_install(Job *j) {
                                 /* XXX It should be safer to queue j to run after uj finishes, but it is
                                  * not currently possible to have more than one installed job per unit. */
                                 job_merge_into_installed(uj, j);
-                                log_debug("Merged into running job, re-running: %s/%s as %u",
-                                          uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
+                                log_debug_unit(uj->unit->id,
+                                               "Merged into running job, re-running: %s/%s as %u",
+                                               uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
                                 uj->state = JOB_WAITING;
                                 return uj;
                         }
@@ -208,7 +210,9 @@ Job* job_install(Job *j) {
         *pj = j;
         j->installed = true;
         j->manager->n_installed_jobs ++;
-        log_debug("Installed new job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
+        log_debug_unit(j->unit->id,
+                       "Installed new job %s/%s as %u",
+                       j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
         return j;
 }
 
@@ -225,12 +229,16 @@ int job_install_deserialized(Job *j) {
         pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
 
         if (*pj) {
-                log_debug("Unit %s already has a job installed. Not installing deserialized job.", j->unit->id);
+                log_debug_unit(j->unit->id,
+                               "Unit %s already has a job installed. Not installing deserialized job.",
+                               j->unit->id);
                 return -EEXIST;
         }
         *pj = j;
         j->installed = true;
-        log_debug("Reinstalled deserialized job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
+        log_debug_unit(j->unit->id,
+                       "Reinstalled deserialized job %s/%s as %u",
+                       j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
         return 0;
 }
 
@@ -457,9 +465,10 @@ bool job_is_runnable(Job *j) {
 }
 
 static void job_change_type(Job *j, JobType newtype) {
-        log_debug("Converting job %s/%s -> %s/%s",
-                  j->unit->id, job_type_to_string(j->type),
-                  j->unit->id, job_type_to_string(newtype));
+        log_debug_unit(j->unit->id,
+                       "Converting job %s/%s -> %s/%s",
+                       j->unit->id, job_type_to_string(j->type),
+                       j->unit->id, job_type_to_string(newtype));
 
         j->type = newtype;
 }
@@ -744,7 +753,8 @@ int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) {
 
         j->result = result;
 
-        log_debug("Job %s/%s finished, result=%s", u->id, job_type_to_string(t), job_result_to_string(result));
+        log_debug_unit(u->id, "Job %s/%s finished, result=%s",
+                       u->id, job_type_to_string(t), job_result_to_string(result));
 
         job_print_status_message(u, t, result);
         job_log_status_message(u, t, result);
@@ -804,14 +814,19 @@ int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) {
         }
 
         /* Trigger OnFailure dependencies that are not generated by
-         * the unit itself. We don't tread JOB_CANCELED as failure in
+         * the unit itself. We don't treat JOB_CANCELED as failure in
          * this context. And JOB_FAILURE is already handled by the
          * unit itself. */
         if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) {
-                log_notice("Job %s/%s failed with result '%s'.",
+                log_struct(LOG_NOTICE,
+                           "UNIT=%s", u->id,
+                           "JOB_TYPE=%s", job_type_to_string(t),
+                           "JOB_RESULT=%s", job_result_to_string(t),
+                           "Job %s/%s failed with result '%s'.",
                            u->id,
                            job_type_to_string(t),
-                           job_result_to_string(result));
+                           job_result_to_string(result),
+                           NULL);
 
                 unit_trigger_on_failure(u);
         }
@@ -918,7 +933,8 @@ void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w) {
         assert(j);
         assert(w == &j->timer_watch);
 
-        log_warning("Job %s/%s timed out.", j->unit->id, job_type_to_string(j->type));
+        log_warning_unit(j->unit->id, "Job %s/%s timed out.",
+                         j->unit->id, job_type_to_string(j->type));
         job_finish_and_invalidate(j, JOB_TIMEOUT, true);
 }
 
diff --git a/src/core/manager.c b/src/core/manager.c
index ec3541418d..3a4023f31a 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -487,7 +487,7 @@ static unsigned manager_dispatch_gc_queue(Manager *m) {
 
                 if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||
                     u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {
-                        log_debug("Collecting %s", u->id);
+                        log_debug_unit(u->id, "Collecting %s", u->id);
                         u->gc_marker = gc_marker + GC_OFFSET_BAD;
                         unit_add_to_cleanup_queue(u);
                 }
@@ -749,7 +749,9 @@ int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool ove
                 return -EPERM;
         }
 
-        log_debug("Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode));
+        log_debug_unit(unit->id,
+                       "Trying to enqueue job %s/%s/%s", unit->id,
+                       job_type_to_string(type), job_mode_to_string(mode));
 
         job_type_collapse(&type, unit);
 
@@ -773,7 +775,9 @@ int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool ove
         if (r < 0)
                 goto tr_abort;
 
-        log_debug("Enqueued job %s/%s as %u", unit->id, job_type_to_string(type), (unsigned) tr->anchor_job->id);
+        log_debug_unit(unit->id,
+                       "Enqueued job %s/%s as %u", unit->id,
+                       job_type_to_string(type), (unsigned) tr->anchor_job->id);
 
         if (_ret)
                 *_ret = tr->anchor_job;
@@ -1070,7 +1074,7 @@ static int manager_process_notify_fd(Manager *m) {
                 if (!tags)
                         return log_oom();
 
-                log_debug("Got notification message for unit %s", u->id);
+                log_debug_unit(u->id, "Got notification message for unit %s", u->id);
 
                 if (UNIT_VTABLE(u)->notify_message)
                         UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags);
@@ -1150,7 +1154,8 @@ static int manager_dispatch_sigchld(Manager *m) {
                 if (!u)
                         continue;
 
-                log_debug("Child %lu belongs to %s", (long unsigned) si.si_pid, u->id);
+                log_debug_unit(u->id,
+                               "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id);
 
                 hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid));
                 UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status);
@@ -1165,11 +1170,12 @@ static int manager_start_target(Manager *m, const char *name, JobMode mode) {
 
         dbus_error_init(&error);
 
-        log_debug("Activating special unit %s", name);
+        log_debug_unit(name, "Activating special unit %s", name);
 
         r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
         if (r < 0)
-                log_error("Failed to enqueue %s job: %s", name, bus_error(&error, r));
+                log_error_unit(name,
+                               "Failed to enqueue %s job: %s", name, bus_error(&error, r));
 
         dbus_error_free(&error);
 
@@ -1677,7 +1683,8 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
 
         p = unit_name_to_prefix_and_instance(u->id);
         if (!p) {
-                log_error("Failed to allocate unit name for audit message: %s", strerror(ENOMEM));
+                log_error_unit(u->id,
+                               "Failed to allocate unit name for audit message: %s", strerror(ENOMEM));
                 return;
         }
 
diff --git a/src/core/mount.c b/src/core/mount.c
index 7cadd9fcb4..5d2b010013 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -387,7 +387,8 @@ static int mount_add_device_links(Mount *m) {
 
                 r = manager_load_unit_prepare(UNIT(m)->manager, name, NULL, NULL, &fsck);
                 if (r < 0) {
-                        log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
+                        log_warning_unit(name,
+                                         "Failed to prepare unit %s: %s", name, strerror(-r));
                         free(name);
                         return r;
                 }
@@ -498,7 +499,9 @@ static int mount_fix_timeouts(Mount *m) {
         free(t);
 
         if (r < 0) {
-                log_warning("Failed to parse timeout for %s, ignoring: %s", m->where, timeout);
+                log_warning_unit(UNIT(m)->id,
+                                 "Failed to parse timeout for %s, ignoring: %s",
+                                 m->where, timeout);
                 return r;
         }
 
@@ -530,22 +533,29 @@ static int mount_verify(Mount *m) {
         free(e);
 
         if (!b) {
-                log_error("%s's Where setting doesn't match unit name. Refusing.", UNIT(m)->id);
+                log_error_unit(UNIT(m)->id,
+                               "%s's Where setting doesn't match unit name. Refusing.",
+                               UNIT(m)->id);
                 return -EINVAL;
         }
 
         if (mount_point_is_api(m->where) || mount_point_ignore(m->where)) {
-                log_error("Cannot create mount unit for API file system %s. Refusing.", m->where);
+                log_error_unit(UNIT(m)->id,
+                               "Cannot create mount unit for API file system %s. Refusing.",
+                               m->where);
                 return -EINVAL;
         }
 
         if (UNIT(m)->fragment_path && !m->parameters_fragment.what) {
-                log_error("%s's What setting is missing. Refusing.", UNIT(m)->id);
+                log_error_unit(UNIT(m)->id,
+                               "%s's What setting is missing. Refusing.", UNIT(m)->id);
                 return -EBADMSG;
         }
 
         if (m->exec_context.pam_name && m->kill_context.kill_mode != KILL_CONTROL_GROUP) {
-                log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(m)->id);
+                log_error_unit(UNIT(m)->id,
+                               "%s has PAM enabled. Kill mode must be set to control-group'. Refusing.",
+                               UNIT(m)->id);
                 return -EINVAL;
         }
 
@@ -712,10 +722,11 @@ static void mount_set_state(Mount *m, MountState state) {
 	}
 
         if (state != old_state)
-                log_debug("%s changed %s -> %s",
-                          UNIT(m)->id,
-                          mount_state_to_string(old_state),
-                          mount_state_to_string(state));
+                log_debug_unit(UNIT(m)->id,
+                               "%s changed %s -> %s",
+                               UNIT(m)->id,
+                               mount_state_to_string(old_state),
+                               mount_state_to_string(state));
 
         unit_notify(UNIT(m), state_translation_table[old_state], state_translation_table[state], m->reload_result == MOUNT_SUCCESS);
         m->reload_result = MOUNT_SUCCESS;
@@ -882,7 +893,9 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
                 if (m->control_pid > 0) {
                         if (kill_and_sigcont(m->control_pid, sig) < 0 && errno != ESRCH)
 
-                                log_warning("Failed to kill control process %li: %m", (long) m->control_pid);
+                                log_warning_unit(UNIT(m)->id,
+                                                 "Failed to kill control process %li: %m",
+                                                 (long) m->control_pid);
                         else
                                 wait_for_exit = true;
                 }
@@ -902,7 +915,9 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
                         r = cgroup_bonding_kill_list(UNIT(m)->cgroup_bondings, sig, true, false, pid_set, NULL);
                         if (r < 0) {
                                 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
-                                        log_warning("Failed to kill control group: %s", strerror(-r));
+                                        log_warning_unit(UNIT(m)->id,
+                                                         "Failed to kill control group: %s",
+                                                         strerror(-r));
                         } else if (r > 0)
                                 wait_for_exit = true;
 
@@ -925,7 +940,8 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
         return;
 
 fail:
-        log_warning("%s failed to kill processes: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to kill processes: %s", UNIT(m)->id, strerror(-r));
 
         if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
                 mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
@@ -973,7 +989,9 @@ static void mount_enter_unmounting(Mount *m) {
         return;
 
 fail:
-        log_warning("%s failed to run 'umount' task: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to run 'umount' task: %s",
+                         UNIT(m)->id, strerror(-r));
         mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
 }
 
@@ -1021,7 +1039,9 @@ static void mount_enter_mounting(Mount *m) {
         return;
 
 fail:
-        log_warning("%s failed to run 'mount' task: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to run 'mount' task: %s",
+                         UNIT(m)->id, strerror(-r));
         mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
 }
 
@@ -1079,7 +1099,9 @@ static void mount_enter_remounting(Mount *m) {
         return;
 
 fail:
-        log_warning("%s failed to run 'remount' task: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to run 'remount' task: %s",
+                         UNIT(m)->id, strerror(-r));
         m->reload_result = MOUNT_FAILURE_RESOURCES;
         mount_enter_mounted(m, MOUNT_SUCCESS);
 }
@@ -1181,7 +1203,7 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
                 MountState state;
 
                 if ((state = mount_state_from_string(value)) < 0)
-                        log_debug("Failed to parse state value %s", value);
+                        log_debug_unit(u->id, "Failed to parse state value %s", value);
                 else
                         m->deserialized_state = state;
         } else if (streq(key, "result")) {
@@ -1189,7 +1211,8 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
 
                 f = mount_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse result value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "Failed to parse result value %s", value);
                 else if (f != MOUNT_SUCCESS)
                         m->result = f;
 
@@ -1198,7 +1221,8 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
 
                 f = mount_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse reload result value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "Failed to parse reload result value %s", value);
                 else if (f != MOUNT_SUCCESS)
                         m->reload_result = f;
 
@@ -1206,21 +1230,24 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
                 pid_t pid;
 
                 if (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse control-pid value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "Failed to parse control-pid value %s", value);
                 else
                         m->control_pid = pid;
         } else if (streq(key, "control-command")) {
                 MountExecCommand id;
 
                 if ((id = mount_exec_command_from_string(value)) < 0)
-                        log_debug("Failed to parse exec-command value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "Failed to parse exec-command value %s", value);
                 else {
                         m->control_command_id = id;
                         m->control_command = m->exec_command + id;
                 }
 
         } else
-                log_debug("Unknown serialization key '%s'", key);
+                log_debug_unit(UNIT(m)->id,
+                               "Unknown serialization key '%s'", key);
 
         return 0;
 }
@@ -1278,8 +1305,9 @@ static void mount_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                 m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
         }
 
-        log_full(f == MOUNT_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
-                 "%s mount process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
+        log_full_unit(f == MOUNT_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
+                      "%s mount process exited, code=%s status=%i",
+                      u->id, sigchld_code_to_string(code), status);
 
         /* Note that mount(8) returning and the kernel sending us a
          * mount table change event might happen out-of-order. If an
@@ -1346,27 +1374,33 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
 
         case MOUNT_MOUNTING:
         case MOUNT_MOUNTING_DONE:
-                log_warning("%s mounting timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s mounting timed out. Stopping.", u->id);
                 mount_enter_signal(m, MOUNT_MOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
                 break;
 
         case MOUNT_REMOUNTING:
-                log_warning("%s remounting timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s remounting timed out. Stopping.", u->id);
                 m->reload_result = MOUNT_FAILURE_TIMEOUT;
                 mount_enter_mounted(m, MOUNT_SUCCESS);
                 break;
 
         case MOUNT_UNMOUNTING:
-                log_warning("%s unmounting timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s unmounting timed out. Stopping.", u->id);
                 mount_enter_signal(m, MOUNT_UNMOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
                 break;
 
         case MOUNT_MOUNTING_SIGTERM:
                 if (m->kill_context.send_sigkill) {
-                        log_warning("%s mounting timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s mounting timed out. Killing.", u->id);
                         mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s mounting timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s mounting timed out. Skipping SIGKILL. Ignoring.",
+                                         u->id);
 
                         if (m->from_proc_self_mountinfo)
                                 mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
@@ -1377,10 +1411,13 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
 
         case MOUNT_REMOUNTING_SIGTERM:
                 if (m->kill_context.send_sigkill) {
-                        log_warning("%s remounting timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s remounting timed out. Killing.", u->id);
                         mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s remounting timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s remounting timed out. Skipping SIGKILL. Ignoring.",
+                                         u->id);
 
                         if (m->from_proc_self_mountinfo)
                                 mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
@@ -1391,10 +1428,13 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
 
         case MOUNT_UNMOUNTING_SIGTERM:
                 if (m->kill_context.send_sigkill) {
-                        log_warning("%s unmounting timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s unmounting timed out. Killing.", u->id);
                         mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s unmounting timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s unmounting timed out. Skipping SIGKILL. Ignoring.",
+                                         u->id);
 
                         if (m->from_proc_self_mountinfo)
                                 mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
@@ -1406,7 +1446,9 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
         case MOUNT_MOUNTING_SIGKILL:
         case MOUNT_REMOUNTING_SIGKILL:
         case MOUNT_UNMOUNTING_SIGKILL:
-                log_warning("%s mount process still around after SIGKILL. Ignoring.", u->id);
+                log_warning_unit(u->id,
+                                 "%s mount process still around after SIGKILL. Ignoring.",
+                                 u->id);
 
                 if (m->from_proc_self_mountinfo)
                         mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
diff --git a/src/core/path.c b/src/core/path.c
index d65339771e..767620ba75 100644
--- a/src/core/path.c
+++ b/src/core/path.c
@@ -307,7 +307,8 @@ static int path_verify(Path *p) {
                 return 0;
 
         if (!p->specs) {
-                log_error("%s lacks path setting. Refusing.", UNIT(p)->id);
+                log_error_unit(UNIT(p)->id,
+                               "%s lacks path setting. Refusing.", UNIT(p)->id);
                 return -EINVAL;
         }
 
diff --git a/src/core/service.c b/src/core/service.c
index 70b93e8446..2a4e691e78 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -169,7 +169,8 @@ static void service_unwatch_pid_file(Service *s) {
         if (!s->pid_file_pathspec)
                 return;
 
-        log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
+        log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
+                       UNIT(s)->id, s->pid_file_pathspec->path);
         path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
         path_spec_done(s->pid_file_pathspec);
         free(s->pid_file_pathspec);
@@ -191,8 +192,9 @@ static int service_set_main_pid(Service *s, pid_t pid) {
         s->main_pid_known = true;
 
         if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
-                log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
-                            UNIT(s)->id, (unsigned long) pid);
+                log_warning_unit(UNIT(s)->id,
+                                 "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
+                                 UNIT(s)->id, (unsigned long) pid);
 
                 s->main_pid_alien = true;
         } else
@@ -244,14 +246,16 @@ static void service_handle_watchdog(Service *s) {
 
         offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
         if (offset >= s->watchdog_usec) {
-                log_error("%s watchdog timeout!", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
                 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
                 return;
         }
 
         r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->watchdog_usec - offset, &s->watchdog_watch);
         if (r < 0)
-                log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
+                log_warning_unit(UNIT(s)->id,
+                                 "%s failed to install watchdog timer: %s",
+                                 UNIT(s)->id, strerror(-r));
 }
 
 static void service_reset_watchdog(Service *s) {
@@ -581,7 +585,9 @@ static int service_load_sysv_path(Service *s, const char *path) {
                                 break;
 
                         r = -errno;
-                        log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
+                        log_error_unit(u->id,
+                                       "Failed to read configuration file '%s': %s",
+                                       path, strerror(-r));
                         goto finish;
                 }
 
@@ -634,7 +640,9 @@ static int service_load_sysv_path(Service *s, const char *path) {
                                            runlevels,
                                            &start_priority) != 2) {
 
-                                        log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
+                                        log_warning_unit(u->id,
+                                                         "[%s:%u] Failed to parse chkconfig line. Ignoring.",
+                                                         path, line);
                                         continue;
                                 }
 
@@ -642,7 +650,9 @@ static int service_load_sysv_path(Service *s, const char *path) {
                                  * symlink farms is preferred over the
                                  * data from the LSB header. */
                                 if (start_priority < 0 || start_priority > 99)
-                                        log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
+                                        log_warning_unit(u->id,
+                                                         "[%s:%u] Start priority out of range. Ignoring.",
+                                                         path, line);
                                 else
                                         s->sysv_start_priority = start_priority;
 
@@ -691,7 +701,9 @@ static int service_load_sysv_path(Service *s, const char *path) {
 
                                 fn = strstrip(t+8);
                                 if (!path_is_absolute(fn)) {
-                                        log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
+                                        log_warning_unit(u->id,
+                                                         "[%s:%u] PID file not absolute. Ignoring.",
+                                                         path, line);
                                         continue;
                                 }
 
@@ -778,7 +790,9 @@ static int service_load_sysv_path(Service *s, const char *path) {
                                                 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
 
                                         if (r < 0)
-                                                log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
+                                                log_error_unit(u->id,
+                                                               "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
+                                                               path, line, m, strerror(-r));
 
                                         free(m);
                                 }
@@ -803,7 +817,9 @@ static int service_load_sysv_path(Service *s, const char *path) {
                                         r = sysv_translate_facility(n, path_get_file_name(path), &m);
 
                                         if (r < 0) {
-                                                log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
+                                                log_error_unit(u->id,
+                                                               "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
+                                                               path, line, n, strerror(-r));
                                                 free(n);
                                                 continue;
                                         }
@@ -816,7 +832,8 @@ static int service_load_sysv_path(Service *s, const char *path) {
                                         r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
 
                                         if (r < 0)
-                                                log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
+                                                log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
+                                                               path, line, m, strerror(-r));
 
                                         free(m);
                                 }
@@ -1105,26 +1122,31 @@ static int service_verify(Service *s) {
                 return 0;
 
         if (!s->exec_command[SERVICE_EXEC_START]) {
-                log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->type != SERVICE_ONESHOT &&
             s->exec_command[SERVICE_EXEC_START]->command_next) {
-                log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->type == SERVICE_DBUS && !s->bus_name) {
-                log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->bus_name && s->type != SERVICE_DBUS)
-                log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
+                log_warning_unit(UNIT(s)->id,
+                                 "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
 
         if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
-                log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
                 return -EINVAL;
         }
 
@@ -1366,8 +1388,9 @@ static int service_load_pid_file(Service *s, bool may_warn) {
 
         if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
                 if (may_warn)
-                        log_info("PID file %s not readable (yet?) after %s.",
-                                 s->pid_file, service_state_to_string(s->state));
+                        log_info_unit(UNIT(s)->id,
+                                      "PID file %s not readable (yet?) after %s.",
+                                      s->pid_file, service_state_to_string(s->state));
                 return r;
         }
 
@@ -1379,8 +1402,9 @@ static int service_load_pid_file(Service *s, bool may_warn) {
 
         if (kill(pid, 0) < 0 && errno != EPERM) {
                 if (may_warn)
-                        log_info("PID %lu read from file %s does not exist.",
-                                 (unsigned long) pid, s->pid_file);
+                        log_info_unit(UNIT(s)->id,
+                                      "PID %lu read from file %s does not exist.",
+                                      (unsigned long) pid, s->pid_file);
                 return -ESRCH;
         }
 
@@ -1388,12 +1412,14 @@ static int service_load_pid_file(Service *s, bool may_warn) {
                 if (pid == s->main_pid)
                         return 0;
 
-                log_debug("Main PID changing: %lu -> %lu",
-                          (unsigned long) s->main_pid, (unsigned long) pid);
+                log_debug_unit(UNIT(s)->id,
+                               "Main PID changing: %lu -> %lu",
+                               (unsigned long) s->main_pid, (unsigned long) pid);
                 service_unwatch_main_pid(s);
                 s->main_pid_known = false;
         } else
-                log_debug("Main PID loaded: %lu", (unsigned long) pid);
+                log_debug_unit(UNIT(s)->id,
+                               "Main PID loaded: %lu", (unsigned long) pid);
 
         if ((r = service_set_main_pid(s, pid)) < 0)
                 return r;
@@ -1424,7 +1450,8 @@ static int service_search_main_pid(Service *s) {
         if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
                 return -ENOENT;
 
-        log_debug("Main PID guessed: %lu", (unsigned long) pid);
+        log_debug_unit(UNIT(s)->id,
+                       "Main PID guessed: %lu", (unsigned long) pid);
         if ((r = service_set_main_pid(s, pid)) < 0)
                 return r;
 
@@ -1540,12 +1567,10 @@ static void service_set_state(Service *s, ServiceState state) {
                 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
 
         if (old_state != state)
-                log_struct(LOG_DEBUG,
-                           "UNIT=%s", UNIT(s)->id,
-                           "MESSAGE=%s changed %s -> %s", UNIT(s)->id,
-                                   service_state_to_string(old_state),
-                                   service_state_to_string(state),
-                           NULL);
+                log_debug_unit(UNIT(s)->id,
+                               "%s changed %s -> %s", UNIT(s)->id,
+                               service_state_to_string(old_state),
+                               service_state_to_string(state));
 
         unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
         s->reload_result = SERVICE_SUCCESS;
@@ -1889,7 +1914,9 @@ static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart)
         return;
 
 fail:
-        log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run install restart timer: %s",
+                         UNIT(s)->id, strerror(-r));
         service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
 }
 
@@ -1928,7 +1955,9 @@ static void service_enter_stop_post(Service *s, ServiceResult f) {
         return;
 
 fail:
-        log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'stop-post' task: %s",
+                         UNIT(s)->id, strerror(-r));
         service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
 }
 
@@ -1947,14 +1976,16 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
 
                 if (s->main_pid > 0) {
                         if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
-                                log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
+                                log_warning_unit(UNIT(s)->id,
+                                                 "Failed to kill main process %li: %m", (long) s->main_pid);
                         else
                                 wait_for_exit = !s->main_pid_alien;
                 }
 
                 if (s->control_pid > 0) {
                         if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
-                                log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
+                                log_warning_unit(UNIT(s)->id,
+                                                 "Failed to kill control process %li: %m", (long) s->control_pid);
                         else
                                 wait_for_exit = true;
                 }
@@ -1979,7 +2010,8 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
                         r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
                         if (r < 0) {
                                 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
-                                        log_warning("Failed to kill control group: %s", strerror(-r));
+                                        log_warning_unit(UNIT(s)->id,
+                                                         "Failed to kill control group: %s", strerror(-r));
                         } else if (r > 0)
                                 wait_for_exit = true;
 
@@ -2004,7 +2036,8 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
         return;
 
 fail:
-        log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
 
         if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
                 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
@@ -2048,7 +2081,8 @@ static void service_enter_stop(Service *s, ServiceResult f) {
         return;
 
 fail:
-        log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
         service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
 }
 
@@ -2103,7 +2137,8 @@ static void service_enter_start_post(Service *s) {
         return;
 
 fail:
-        log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
         service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
 }
 
@@ -2186,7 +2221,8 @@ static void service_enter_start(Service *s) {
         return;
 
 fail:
-        log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
         service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
 }
 
@@ -2225,7 +2261,8 @@ static void service_enter_start_pre(Service *s) {
         return;
 
 fail:
-        log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
         service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
 }
 
@@ -2238,7 +2275,8 @@ static void service_enter_restart(Service *s) {
 
         if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
                 /* Don't restart things if we are going down anyway */
-                log_info("Stop job pending for unit, delaying automatic restart.");
+                log_info_unit(UNIT(s)->id,
+                              "Stop job pending for unit, delaying automatic restart.");
 
                 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
                 if (r < 0)
@@ -2259,11 +2297,14 @@ static void service_enter_restart(Service *s) {
          * it will be canceled as part of the service_stop() call that
          * is executed as part of JOB_RESTART. */
 
-        log_debug("%s scheduled restart job.", UNIT(s)->id);
+        log_debug_unit(UNIT(s)->id,
+                       "%s scheduled restart job.", UNIT(s)->id);
         return;
 
 fail:
-        log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to schedule restart job: %s",
+                         UNIT(s)->id, bus_error(&error, -r));
         service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
 
         dbus_error_free(&error);
@@ -2299,7 +2340,9 @@ static void service_enter_reload(Service *s) {
         return;
 
 fail:
-        log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'reload' task: %s",
+                         UNIT(s)->id, strerror(-r));
         s->reload_result = SERVICE_FAILURE_RESOURCES;
         service_enter_running(s, SERVICE_SUCCESS);
 }
@@ -2333,7 +2376,9 @@ static void service_run_next_control(Service *s) {
         return;
 
 fail:
-        log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run next control task: %s",
+                         UNIT(s)->id, strerror(-r));
 
         if (s->state == SERVICE_START_PRE)
                 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
@@ -2378,7 +2423,8 @@ static void service_run_next_main(Service *s) {
         return;
 
 fail:
-        log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
         service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
 }
 
@@ -2391,7 +2437,9 @@ static int service_start_limit_test(Service *s) {
         switch (s->start_limit_action) {
 
         case SERVICE_START_LIMIT_NONE:
-                log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
+                log_warning_unit(UNIT(s)->id,
+                                 "%s start request repeated too quickly, refusing to start.",
+                                 UNIT(s)->id);
                 break;
 
         case SERVICE_START_LIMIT_REBOOT: {
@@ -2400,11 +2448,13 @@ static int service_start_limit_test(Service *s) {
 
                 dbus_error_init(&error);
 
-                log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
+                log_warning_unit(UNIT(s)->id,
+                                 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
 
                 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
                 if (r < 0) {
-                        log_error("Failed to reboot: %s.", bus_error(&error, r));
+                        log_error_unit(UNIT(s)->id,
+                                       "Failed to reboot: %s.", bus_error(&error, r));
                         dbus_error_free(&error);
                 }
 
@@ -2412,18 +2462,21 @@ static int service_start_limit_test(Service *s) {
         }
 
         case SERVICE_START_LIMIT_REBOOT_FORCE:
-                log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
+                log_warning_unit(UNIT(s)->id,
+                                 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
                 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
                 break;
 
         case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
-                log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
+                log_warning_unit(UNIT(s)->id,
+                                 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
                 sync();
                 reboot(RB_AUTOBOOT);
                 break;
 
         default:
-                log_error("start limit action=%i", s->start_limit_action);
+                log_error_unit(UNIT(s)->id,
+                               "start limit action=%i", s->start_limit_action);
                 assert_not_reached("Unknown StartLimitAction.");
         }
 
@@ -2605,7 +2658,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
                 ServiceState state;
 
                 if ((state = service_state_from_string(value)) < 0)
-                        log_debug("Failed to parse state value %s", value);
+                        log_debug_unit(u->id, "Failed to parse state value %s", value);
                 else
                         s->deserialized_state = state;
         } else if (streq(key, "result")) {
@@ -2613,7 +2666,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
 
                 f = service_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse result value %s", value);
+                        log_debug_unit(u->id, "Failed to parse result value %s", value);
                 else if (f != SERVICE_SUCCESS)
                         s->result = f;
 
@@ -2622,7 +2675,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
 
                 f = service_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse reload result value %s", value);
+                        log_debug_unit(u->id, "Failed to parse reload result value %s", value);
                 else if (f != SERVICE_SUCCESS)
                         s->reload_result = f;
 
@@ -2630,21 +2683,21 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
                 pid_t pid;
 
                 if (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse control-pid value %s", value);
+                        log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
                 else
                         s->control_pid = pid;
         } else if (streq(key, "main-pid")) {
                 pid_t pid;
 
                 if (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse main-pid value %s", value);
+                        log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
                 else
                         service_set_main_pid(s, (pid_t) pid);
         } else if (streq(key, "main-pid-known")) {
                 int b;
 
                 if ((b = parse_boolean(value)) < 0)
-                        log_debug("Failed to parse main-pid-known value %s", value);
+                        log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
                 else
                         s->main_pid_known = b;
         } else if (streq(key, "status-text")) {
@@ -2659,7 +2712,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
                 ServiceExecCommand id;
 
                 if ((id = service_exec_command_from_string(value)) < 0)
-                        log_debug("Failed to parse exec-command value %s", value);
+                        log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
                 else {
                         s->control_command_id = id;
                         s->control_command = s->exec_command[id];
@@ -2668,7 +2721,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
                 int fd;
 
                 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse socket-fd value %s", value);
+                        log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
                 else {
 
                         if (s->socket_fd >= 0)
@@ -2679,21 +2732,21 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
                 pid_t pid;
 
                 if (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse main-exec-status-pid value %s", value);
+                        log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
                 else
                         s->main_exec_status.pid = pid;
         } else if (streq(key, "main-exec-status-code")) {
                 int i;
 
                 if (safe_atoi(value, &i) < 0)
-                        log_debug("Failed to parse main-exec-status-code value %s", value);
+                        log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
                 else
                         s->main_exec_status.code = i;
         } else if (streq(key, "main-exec-status-status")) {
                 int i;
 
                 if (safe_atoi(value, &i) < 0)
-                        log_debug("Failed to parse main-exec-status-status value %s", value);
+                        log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
                 else
                         s->main_exec_status.status = i;
         } else if (streq(key, "main-exec-status-start"))
@@ -2703,7 +2756,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
         else if (streq(key, "watchdog-timestamp"))
                 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
         else
-                log_debug("Unknown serialization key '%s'", key);
+                log_debug_unit(u->id, "Unknown serialization key '%s'", key);
 
         return 0;
 }
@@ -2771,7 +2824,9 @@ static int service_retry_pid_file(Service *s) {
 static int service_watch_pid_file(Service *s) {
         int r;
 
-        log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
+        log_debug_unit(UNIT(s)->id,
+                       "Setting watch for %s's PID file %s",
+                       UNIT(s)->id, s->pid_file_pathspec->path);
         r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
         if (r < 0)
                 goto fail;
@@ -2781,8 +2836,9 @@ static int service_watch_pid_file(Service *s) {
 
         return 0;
 fail:
-        log_error("Failed to set a watch for %s's PID file %s: %s",
-                  UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
+        log_error_unit(UNIT(s)->id,
+                       "Failed to set a watch for %s's PID file %s: %s",
+                       UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
         service_unwatch_pid_file(s);
         return r;
 }
@@ -2824,7 +2880,7 @@ static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
         assert(s->pid_file_pathspec);
         assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
 
-        log_debug("inotify event for %s", u->id);
+        log_debug_unit(u->id, "inotify event for %s", u->id);
 
         if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
                 goto fail;
@@ -2902,7 +2958,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                         /* There is another command to *
                          * execute, so let's do that. */
 
-                        log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
+                        log_debug_unit(u->id,
+                                       "%s running next main command for state %s",
+                                       u->id, service_state_to_string(s->state));
                         service_run_next_main(s);
 
                 } else {
@@ -2961,8 +3019,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                                 f = SERVICE_SUCCESS;
                 }
 
-                log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
-                         "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
+                log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
+                              "%s: control process exited, code=%s status=%i",
+                              u->id, sigchld_code_to_string(code), status);
 
                 if (f != SERVICE_SUCCESS)
                         s->result = f;
@@ -2979,7 +3038,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                         /* There is another command to *
                          * execute, so let's do that. */
 
-                        log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
+                        log_debug_unit(u->id,
+                                       "%s running next control command for state %s",
+                                       u->id, service_state_to_string(s->state));
                         service_run_next_control(s);
 
                 } else {
@@ -2989,7 +3050,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                         s->control_command = NULL;
                         s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
 
-                        log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
+                        log_debug_unit(u->id,
+                                       "%s got final SIGCHLD for state %s",
+                                       u->id, service_state_to_string(s->state));
 
                         switch (s->state) {
 
@@ -3111,32 +3174,38 @@ static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
 
         case SERVICE_START_PRE:
         case SERVICE_START:
-                log_warning("%s operation timed out. Terminating.", u->id);
+                log_warning_unit(u->id,
+                                 "%s operation timed out. Terminating.", u->id);
                 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
                 break;
 
         case SERVICE_START_POST:
-                log_warning("%s operation timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s operation timed out. Stopping.", u->id);
                 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
                 break;
 
         case SERVICE_RELOAD:
-                log_warning("%s operation timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s operation timed out. Stopping.", u->id);
                 s->reload_result = SERVICE_FAILURE_TIMEOUT;
                 service_enter_running(s, SERVICE_SUCCESS);
                 break;
 
         case SERVICE_STOP:
-                log_warning("%s stopping timed out. Terminating.", u->id);
+                log_warning_unit(u->id,
+                                 "%s stopping timed out. Terminating.", u->id);
                 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
                 break;
 
         case SERVICE_STOP_SIGTERM:
                 if (s->kill_context.send_sigkill) {
-                        log_warning("%s stopping timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out. Killing.", u->id);
                         service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out. Skipping SIGKILL.", u->id);
                         service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
                 }
 
@@ -3147,33 +3216,40 @@ static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
                  * Must be something we cannot kill, so let's just be
                  * weirded out and continue */
 
-                log_warning("%s still around after SIGKILL. Ignoring.", u->id);
+                log_warning_unit(u->id,
+                                 "%s still around after SIGKILL. Ignoring.", u->id);
                 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
                 break;
 
         case SERVICE_STOP_POST:
-                log_warning("%s stopping timed out (2). Terminating.", u->id);
+                log_warning_unit(u->id,
+                                 "%s stopping timed out (2). Terminating.", u->id);
                 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
                 break;
 
         case SERVICE_FINAL_SIGTERM:
                 if (s->kill_context.send_sigkill) {
-                        log_warning("%s stopping timed out (2). Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out (2). Killing.", u->id);
                         service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
+                                         u->id);
                         service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
                 }
 
                 break;
 
         case SERVICE_FINAL_SIGKILL:
-                log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
+                log_warning_unit(u->id,
+                                 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
                 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
                 break;
 
         case SERVICE_AUTO_RESTART:
-                log_info("%s holdoff time over, scheduling restart.", u->id);
+                log_info_unit(u->id,
+                              "%s holdoff time over, scheduling restart.", u->id);
                 service_enter_restart(s);
                 break;
 
@@ -3187,7 +3263,8 @@ static void service_cgroup_notify_event(Unit *u) {
 
         assert(u);
 
-        log_debug("%s: cgroup is empty", u->id);
+        log_debug_unit(u->id,
+                       "%s: cgroup is empty", u->id);
 
         switch (s->state) {
 
@@ -3202,7 +3279,8 @@ static void service_cgroup_notify_event(Unit *u) {
                 /* If we were hoping for the daemon to write its PID file,
                  * we can give up now. */
                 if (s->pid_file_pathspec) {
-                        log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
+                        log_warning_unit(u->id,
+                                         "%s never wrote its PID file. Failing.", UNIT(s)->id);
                         service_unwatch_pid_file(s);
                         if (s->state == SERVICE_START)
                                 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
@@ -3243,18 +3321,21 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
         assert(u);
 
         if (s->notify_access == NOTIFY_NONE) {
-                log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
-                            u->id, (unsigned long) pid);
+                log_warning_unit(u->id,
+                                 "%s: Got notification message from PID %lu, but reception is disabled.",
+                                 u->id, (unsigned long) pid);
                 return;
         }
 
         if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
-                log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
-                            u->id, (unsigned long) pid, (unsigned long) s->main_pid);
+                log_warning_unit(u->id,
+                                 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
+                                 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
                 return;
         }
 
-        log_debug("%s: Got message", u->id);
+        log_debug_unit(u->id,
+                       "%s: Got message", u->id);
 
         /* Interpret MAINPID= */
         if ((e = strv_find_prefix(tags, "MAINPID=")) &&
@@ -3264,9 +3345,11 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
              s->state == SERVICE_RELOAD)) {
 
                 if (parse_pid(e + 8, &pid) < 0)
-                        log_warning("Failed to parse notification message %s", e);
+                        log_warning_unit(u->id,
+                                         "Failed to parse notification message %s", e);
                 else {
-                        log_debug("%s: got %s", u->id, e);
+                        log_debug_unit(u->id,
+                                       "%s: got %s", u->id, e);
                         service_set_main_pid(s, pid);
                 }
         }
@@ -3275,7 +3358,8 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
         if (s->type == SERVICE_NOTIFY &&
             s->state == SERVICE_START &&
             strv_find(tags, "READY=1")) {
-                log_debug("%s: got READY=1", u->id);
+                log_debug_unit(u->id,
+                               "%s: got READY=1", u->id);
 
                 service_enter_start_post(s);
         }
@@ -3288,17 +3372,20 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
                 if (e[7]) {
 
                         if (!utf8_is_valid(e+7)) {
-                                log_warning("Status message in notification is not UTF-8 clean.");
+                                log_warning_unit(u->id,
+                                                 "Status message in notification is not UTF-8 clean.");
                                 return;
                         }
 
                         t = strdup(e+7);
                         if (!t) {
-                                log_error("Failed to allocate string.");
+                                log_error_unit(u->id,
+                                               "Failed to allocate string.");
                                 return;
                         }
 
-                        log_debug("%s: got %s", u->id, e);
+                        log_debug_unit(u->id,
+                                       "%s: got %s", u->id, e);
 
                         free(s->status_text);
                         s->status_text = t;
@@ -3309,7 +3396,8 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
 
         }
         if (strv_find(tags, "WATCHDOG=1")) {
-                log_debug("%s: got WATCHDOG=1", u->id);
+                log_debug_unit(u->id,
+                               "%s: got WATCHDOG=1", u->id);
                 service_reset_watchdog(s);
         }
 
@@ -3396,7 +3484,8 @@ static int service_enumerate(Manager *m) {
                                         goto finish;
                                 }
 
-                                if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
+                                r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
+                                if (r < 0) {
                                         log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
                                         continue;
                                 }
@@ -3495,11 +3584,17 @@ static void service_bus_name_owner_change(
         assert(old_owner || new_owner);
 
         if (old_owner && new_owner)
-                log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
+                log_debug_unit(u->id,
+                               "%s's D-Bus name %s changed owner from %s to %s",
+                               u->id, name, old_owner, new_owner);
         else if (old_owner)
-                log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
+                log_debug_unit(u->id,
+                               "%s's D-Bus name %s no longer registered by %s",
+                               u->id, name, old_owner);
         else
-                log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
+                log_debug_unit(u->id,
+                               "%s's D-Bus name %s now registered by %s",
+                               u->id, name, new_owner);
 
         s->bus_name_good = !!new_owner;
 
@@ -3520,7 +3615,8 @@ static void service_bus_name_owner_change(
                     s->state == SERVICE_RELOAD)) {
 
                 /* Try to acquire PID from bus service */
-                log_debug("Trying to acquire PID from D-Bus name...");
+                log_debug_unit(u->id,
+                               "Trying to acquire PID from D-Bus name...");
 
                 bus_query_pid(u->manager, name);
         }
@@ -3536,7 +3632,9 @@ static void service_bus_query_pid_done(
         assert(s);
         assert(name);
 
-        log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
+        log_debug_unit(u->id,
+                       "%s's D-Bus name %s is now owned by process %u",
+                       u->id, name, (unsigned) pid);
 
         if (s->main_pid <= 0 &&
             (s->state == SERVICE_START ||
diff --git a/src/core/socket.c b/src/core/socket.c
index 324ec1e34b..fcbcdbe192 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -213,27 +213,35 @@ static int socket_verify(Socket *s) {
                 return 0;
 
         if (!s->ports) {
-                log_error("%s lacks Listen setting. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s lacks Listen setting. Refusing.", UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->accept && have_non_accept_socket(s)) {
-                log_error("%s configured for accepting sockets, but sockets are non-accepting. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s configured for accepting sockets, but sockets are non-accepting. Refusing.",
+                               UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->accept && s->max_connections <= 0) {
-                log_error("%s's MaxConnection setting too small. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s's MaxConnection setting too small. Refusing.", UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->accept && UNIT_DEREF(s->service)) {
-                log_error("Explicit service configuration for accepting sockets not supported on %s. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "Explicit service configuration for accepting sockets not supported on %s. Refusing.",
+                               UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
-                log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.",
+                               UNIT(s)->id);
                 return -EINVAL;
         }
 
@@ -700,30 +708,30 @@ static void socket_apply_socket_options(Socket *s, int fd) {
         if (s->keep_alive) {
                 int b = s->keep_alive;
                 if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &b, sizeof(b)) < 0)
-                        log_warning("SO_KEEPALIVE failed: %m");
+                        log_warning_unit(UNIT(s)->id, "SO_KEEPALIVE failed: %m");
         }
 
         if (s->broadcast) {
                 int one = 1;
                 if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) < 0)
-                        log_warning("SO_BROADCAST failed: %m");
+                        log_warning_unit(UNIT(s)->id, "SO_BROADCAST failed: %m");
         }
 
         if (s->pass_cred) {
                 int one = 1;
                 if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0)
-                        log_warning("SO_PASSCRED failed: %m");
+                        log_warning_unit(UNIT(s)->id, "SO_PASSCRED failed: %m");
         }
 
         if (s->pass_sec) {
                 int one = 1;
                 if (setsockopt(fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)) < 0)
-                        log_warning("SO_PASSSEC failed: %m");
+                        log_warning_unit(UNIT(s)->id, "SO_PASSSEC failed: %m");
         }
 
         if (s->priority >= 0)
                 if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0)
-                        log_warning("SO_PRIORITY failed: %m");
+                        log_warning_unit(UNIT(s)->id, "SO_PRIORITY failed: %m");
 
         if (s->receive_buffer > 0) {
                 int value = (int) s->receive_buffer;
@@ -732,23 +740,23 @@ static void socket_apply_socket_options(Socket *s, int fd) {
 
                 if (setsockopt(fd, SOL_SOCKET, SO_RCVBUFFORCE, &value, sizeof(value)) < 0)
                         if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0)
-                                log_warning("SO_RCVBUF failed: %m");
+                                log_warning_unit(UNIT(s)->id, "SO_RCVBUF failed: %m");
         }
 
         if (s->send_buffer > 0) {
                 int value = (int) s->send_buffer;
                 if (setsockopt(fd, SOL_SOCKET, SO_SNDBUFFORCE, &value, sizeof(value)) < 0)
                         if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0)
-                                log_warning("SO_SNDBUF failed: %m");
+                                log_warning_unit(UNIT(s)->id, "SO_SNDBUF failed: %m");
         }
 
         if (s->mark >= 0)
                 if (setsockopt(fd, SOL_SOCKET, SO_MARK, &s->mark, sizeof(s->mark)) < 0)
-                        log_warning("SO_MARK failed: %m");
+                        log_warning_unit(UNIT(s)->id, "SO_MARK failed: %m");
 
         if (s->ip_tos >= 0)
                 if (setsockopt(fd, IPPROTO_IP, IP_TOS, &s->ip_tos, sizeof(s->ip_tos)) < 0)
-                        log_warning("IP_TOS failed: %m");
+                        log_warning_unit(UNIT(s)->id, "IP_TOS failed: %m");
 
         if (s->ip_ttl >= 0) {
                 int r, x;
@@ -763,21 +771,24 @@ static void socket_apply_socket_options(Socket *s, int fd) {
                 }
 
                 if (r < 0 && x < 0)
-                        log_warning("IP_TTL/IPV6_UNICAST_HOPS failed: %m");
+                        log_warning_unit(UNIT(s)->id,
+                                         "IP_TTL/IPV6_UNICAST_HOPS failed: %m");
         }
 
         if (s->tcp_congestion)
                 if (setsockopt(fd, SOL_TCP, TCP_CONGESTION, s->tcp_congestion, strlen(s->tcp_congestion)+1) < 0)
-                        log_warning("TCP_CONGESTION failed: %m");
+                        log_warning_unit(UNIT(s)->id, "TCP_CONGESTION failed: %m");
 
 #ifdef HAVE_ATTR_XATTR_H
         if (s->smack_ip_in)
                 if (fsetxattr(fd, "security.SMACK64IPIN", s->smack_ip_in, strlen(s->smack_ip_in), 0) < 0)
-                        log_error("fsetxattr(\"security.SMACK64IPIN\"): %m");
+                        log_error_unit(UNIT(s)->id,
+                                       "fsetxattr(\"security.SMACK64IPIN\"): %m");
 
         if (s->smack_ip_out)
                 if (fsetxattr(fd, "security.SMACK64IPOUT", s->smack_ip_out, strlen(s->smack_ip_out), 0) < 0)
-                        log_error("fsetxattr(\"security.SMACK64IPOUT\"): %m");
+                        log_error_unit(UNIT(s)->id,
+                                       "fsetxattr(\"security.SMACK64IPOUT\"): %m");
 #endif
 }
 
@@ -787,12 +798,14 @@ static void socket_apply_fifo_options(Socket *s, int fd) {
 
         if (s->pipe_size > 0)
                 if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0)
-                        log_warning("F_SETPIPE_SZ: %m");
+                        log_warning_unit(UNIT(s)->id,
+                                         "F_SETPIPE_SZ: %m");
 
 #ifdef HAVE_ATTR_XATTR_H
         if (s->smack)
                 if (fsetxattr(fd, "security.SMACK64", s->smack, strlen(s->smack), 0) < 0)
-                        log_error("fsetxattr(\"security.SMACK64\"): %m");
+                        log_error_unit(UNIT(s)->id,
+                                       "fsetxattr(\"security.SMACK64\"): %m");
 #endif
 }
 
@@ -1117,10 +1130,10 @@ static void socket_set_state(Socket *s, SocketState state) {
                 socket_close_fds(s);
 
         if (state != old_state)
-                log_debug("%s changed %s -> %s",
-                          UNIT(s)->id,
-                          socket_state_to_string(old_state),
-                          socket_state_to_string(state));
+                log_debug_unit(UNIT(s)->id,
+                               "%s changed %s -> %s", UNIT(s)->id,
+                               socket_state_to_string(old_state),
+                               socket_state_to_string(state));
 
         unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true);
 }
@@ -1260,7 +1273,9 @@ static void socket_enter_stop_post(Socket *s, SocketResult f) {
         return;
 
 fail:
-        log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'stop-post' task: %s",
+                         UNIT(s)->id, strerror(-r));
         socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES);
 }
 
@@ -1280,7 +1295,9 @@ static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) {
                 if (s->control_pid > 0) {
                         if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
 
-                                log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
+                                log_warning_unit(UNIT(s)->id,
+                                                 "Failed to kill control process %li: %m",
+                                                 (long) s->control_pid);
                         else
                                 wait_for_exit = true;
                 }
@@ -1300,7 +1317,9 @@ static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) {
                         r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
                         if (r < 0) {
                                 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
-                                        log_warning("Failed to kill control group: %s", strerror(-r));
+                                        log_warning_unit(UNIT(s)->id,
+                                                         "Failed to kill control group: %s",
+                                                         strerror(-r));
                         } else if (r > 0)
                                 wait_for_exit = true;
 
@@ -1323,7 +1342,9 @@ static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) {
         return;
 
 fail:
-        log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to kill processes: %s",
+                         UNIT(s)->id, strerror(-r));
 
         if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
                 socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES);
@@ -1356,7 +1377,9 @@ static void socket_enter_stop_pre(Socket *s, SocketResult f) {
         return;
 
 fail:
-        log_warning("%s failed to run 'stop-pre' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'stop-pre' task: %s",
+                         UNIT(s)->id, strerror(-r));
         socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES);
 }
 
@@ -1366,7 +1389,9 @@ static void socket_enter_listening(Socket *s) {
 
         r = socket_watch_fds(s);
         if (r < 0) {
-                log_warning("%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r));
+                log_warning_unit(UNIT(s)->id,
+                                 "%s failed to watch sockets: %s",
+                                 UNIT(s)->id, strerror(-r));
                 goto fail;
         }
 
@@ -1383,7 +1408,9 @@ static void socket_enter_start_post(Socket *s) {
 
         r = socket_open_fds(s);
         if (r < 0) {
-                log_warning("%s failed to listen on sockets: %s", UNIT(s)->id, strerror(-r));
+                log_warning_unit(UNIT(s)->id,
+                                 "%s failed to listen on sockets: %s",
+                                 UNIT(s)->id, strerror(-r));
                 goto fail;
         }
 
@@ -1394,7 +1421,9 @@ static void socket_enter_start_post(Socket *s) {
         if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) {
                 r = socket_spawn(s, s->control_command, &s->control_pid);
                 if (r < 0) {
-                        log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
+                        log_warning_unit(UNIT(s)->id,
+                                         "%s failed to run 'start-post' task: %s",
+                                         UNIT(s)->id, strerror(-r));
                         goto fail;
                 }
 
@@ -1427,7 +1456,9 @@ static void socket_enter_start_pre(Socket *s) {
         return;
 
 fail:
-        log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'start-pre' task: %s",
+                         UNIT(s)->id, strerror(-r));
         socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
 }
 
@@ -1441,7 +1472,9 @@ static void socket_enter_running(Socket *s, int cfd) {
         /* We don't take connections anymore if we are supposed to
          * shut down anyway */
         if (unit_pending_inactive(UNIT(s))) {
-                log_debug("Suppressing connection request on %s since unit stop is scheduled.", UNIT(s)->id);
+                log_debug_unit(UNIT(s)->id,
+                               "Suppressing connection request on %s since unit stop is scheduled.",
+                               UNIT(s)->id);
 
                 if (cfd >= 0)
                         close_nointr_nofail(cfd);
@@ -1451,7 +1484,9 @@ static void socket_enter_running(Socket *s, int cfd) {
 
                         r = socket_watch_fds(s);
                         if (r < 0) {
-                                log_warning("%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r));
+                                log_warning_unit(UNIT(s)->id,
+                                                 "%s failed to watch sockets: %s",
+                                                 UNIT(s)->id, strerror(-r));
                                 socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
                         }
                 }
@@ -1484,7 +1519,9 @@ static void socket_enter_running(Socket *s, int cfd) {
                 Service *service;
 
                 if (s->n_connections >= s->max_connections) {
-                        log_warning("%s: Too many incoming connections (%u)", UNIT(s)->id, s->n_connections);
+                        log_warning_unit(UNIT(s)->id,
+                                         "%s: Too many incoming connections (%u)",
+                                         UNIT(s)->id, s->n_connections);
                         close_nointr_nofail(cfd);
                         return;
                 }
@@ -1553,7 +1590,11 @@ static void socket_enter_running(Socket *s, int cfd) {
         return;
 
 fail:
-        log_warning("%s failed to queue service startup job (Maybe the service file is missing or not a %s unit?): %s", UNIT(s)->id, cfd >= 0 ? "template" : "non-template", bus_error(&error, r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to queue service startup job (Maybe the service file is missing or not a %s unit?): %s",
+                         UNIT(s)->id,
+                         cfd >= 0 ? "template" : "non-template",
+                         bus_error(&error, r));
         socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
 
         if (cfd >= 0)
@@ -1579,7 +1620,9 @@ static void socket_run_next(Socket *s) {
         return;
 
 fail:
-        log_warning("%s failed to run next task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run next task: %s",
+                         UNIT(s)->id, strerror(-r));
 
         if (s->state == SOCKET_START_POST)
                 socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
@@ -1615,7 +1658,9 @@ static int socket_start(Unit *u) {
                 service = SERVICE(UNIT_DEREF(s->service));
 
                 if (UNIT(service)->load_state != UNIT_LOADED) {
-                        log_error("Socket service %s not loaded, refusing.", UNIT(service)->id);
+                        log_error_unit(UNIT(service)->id,
+                                       "Socket service %s not loaded, refusing.",
+                                       UNIT(service)->id);
                         return -ENOENT;
                 }
 
@@ -1624,13 +1669,16 @@ static int socket_start(Unit *u) {
                 if (service->state != SERVICE_DEAD &&
                     service->state != SERVICE_FAILED &&
                     service->state != SERVICE_AUTO_RESTART) {
-                        log_error("Socket service %s already active, refusing.", UNIT(service)->id);
+                        log_error_unit(UNIT(service)->id,
+                                       "Socket service %s already active, refusing.",
+                                       UNIT(service)->id);
                         return -EBUSY;
                 }
 
 #ifdef HAVE_SYSV_COMPAT
                 if (service->is_sysv) {
-                        log_error("Using SysV services for socket activation is not supported. Refusing.");
+                        log_error_unit(UNIT(s)->id,
+                                       "Using SysV services for socket activation is not supported. Refusing.");
                         return -ENOENT;
                 }
 #endif
@@ -1737,7 +1785,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
 
                 state = socket_state_from_string(value);
                 if (state < 0)
-                        log_debug("Failed to parse state value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse state value %s", value);
                 else
                         s->deserialized_state = state;
         } else if (streq(key, "result")) {
@@ -1745,7 +1794,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
 
                 f = socket_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse result value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse result value %s", value);
                 else if (f != SOCKET_SUCCESS)
                         s->result = f;
 
@@ -1753,21 +1803,25 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
                 unsigned k;
 
                 if (safe_atou(value, &k) < 0)
-                        log_debug("Failed to parse n-accepted value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse n-accepted value %s", value);
                 else
                         s->n_accepted += k;
         } else if (streq(key, "control-pid")) {
                 pid_t pid;
 
                 if (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse control-pid value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse control-pid value %s", value);
                 else
                         s->control_pid = pid;
         } else if (streq(key, "control-command")) {
                 SocketExecCommand id;
 
-                if ((id = socket_exec_command_from_string(value)) < 0)
-                        log_debug("Failed to parse exec-command value %s", value);
+                id = socket_exec_command_from_string(value);
+                if (id < 0)
+                        log_debug_unit(u->id,
+                                       "Failed to parse exec-command value %s", value);
                 else {
                         s->control_command_id = id;
                         s->control_command = s->exec_command[id];
@@ -1777,7 +1831,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
                 SocketPort *p;
 
                 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse fifo value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse fifo value %s", value);
                 else {
 
                         LIST_FOREACH(port, p, s->ports)
@@ -1797,7 +1852,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
                 SocketPort *p;
 
                 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse special value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse special value %s", value);
                 else {
 
                         LIST_FOREACH(port, p, s->ports)
@@ -1817,7 +1873,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
                 SocketPort *p;
 
                 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse mqueue value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse mqueue value %s", value);
                 else {
 
                         LIST_FOREACH(port, p, s->ports)
@@ -1837,7 +1894,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
                 SocketPort *p;
 
                 if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse socket value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse socket value %s", value);
                 else {
 
                         LIST_FOREACH(port, p, s->ports)
@@ -1856,7 +1914,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
                 SocketPort *p;
 
                 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse socket value %s", value);
+                        log_debug_unit(u->id,
+                                       "Failed to parse socket value %s", value);
                 else {
 
                         LIST_FOREACH(port, p, s->ports)
@@ -1871,7 +1930,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value,
                 }
 
         } else
-                log_debug("Unknown serialization key '%s'", key);
+                log_debug_unit(UNIT(s)->id,
+                               "Unknown serialization key '%s'", key);
 
         return 0;
 }
@@ -1934,14 +1994,18 @@ static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
         if (s->state != SOCKET_LISTENING)
                 return;
 
-        log_debug("Incoming traffic on %s", u->id);
+        log_debug_unit(u->id, "Incoming traffic on %s", u->id);
 
         if (events != EPOLLIN) {
 
                 if (events & EPOLLHUP)
-                        log_error("%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.", u->id);
+                        log_error_unit(u->id,
+                                       "%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.",
+                                       u->id);
                 else
-                        log_error("%s: Got unexpected poll event (0x%x) on socket.", u->id, events);
+                        log_error_unit(u->id,
+                                       "%s: Got unexpected poll event (0x%x) on socket.",
+                                       u->id, events);
 
                 goto fail;
         }
@@ -1955,7 +2019,8 @@ static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
                                 if (errno == EINTR)
                                         continue;
 
-                                log_error("Failed to accept socket: %m");
+                                log_error_unit(u->id,
+                                               "Failed to accept socket: %m");
                                 goto fail;
                         }
 
@@ -2002,8 +2067,10 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                         f = SOCKET_SUCCESS;
         }
 
-        log_full(f == SOCKET_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
-                 "%s control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
+        log_full_unit(f == SOCKET_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
+                      u->id,
+                      "%s control process exited, code=%s status=%i",
+                      u->id, sigchld_code_to_string(code), status);
 
         if (f != SOCKET_SUCCESS)
                 s->result = f;
@@ -2012,7 +2079,9 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
             s->control_command->command_next &&
             f == SOCKET_SUCCESS) {
 
-                log_debug("%s running next command for state %s", u->id, socket_state_to_string(s->state));
+                log_debug_unit(u->id,
+                               "%s running next command for state %s",
+                               u->id, socket_state_to_string(s->state));
                 socket_run_next(s);
         } else {
                 s->control_command = NULL;
@@ -2021,7 +2090,9 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                 /* No further commands for this step, so let's figure
                  * out what to do next */
 
-                log_debug("%s got final SIGCHLD for state %s", u->id, socket_state_to_string(s->state));
+                log_debug_unit(u->id,
+                               "%s got final SIGCHLD for state %s",
+                               u->id, socket_state_to_string(s->state));
 
                 switch (s->state) {
 
@@ -2070,52 +2141,65 @@ static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
         switch (s->state) {
 
         case SOCKET_START_PRE:
-                log_warning("%s starting timed out. Terminating.", u->id);
+                log_warning_unit(u->id,
+                                 "%s starting timed out. Terminating.", u->id);
                 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT);
                 break;
 
         case SOCKET_START_POST:
-                log_warning("%s starting timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s starting timed out. Stopping.", u->id);
                 socket_enter_stop_pre(s, SOCKET_FAILURE_TIMEOUT);
                 break;
 
         case SOCKET_STOP_PRE:
-                log_warning("%s stopping timed out. Terminating.", u->id);
+                log_warning_unit(u->id,
+                                 "%s stopping timed out. Terminating.", u->id);
                 socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_FAILURE_TIMEOUT);
                 break;
 
         case SOCKET_STOP_PRE_SIGTERM:
                 if (s->kill_context.send_sigkill) {
-                        log_warning("%s stopping timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out. Killing.", u->id);
                         socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s stopping timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out. Skipping SIGKILL. Ignoring.",
+                                         u->id);
                         socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT);
                 }
                 break;
 
         case SOCKET_STOP_PRE_SIGKILL:
-                log_warning("%s still around after SIGKILL. Ignoring.", u->id);
+                log_warning_unit(u->id,
+                                 "%s still around after SIGKILL. Ignoring.", u->id);
                 socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT);
                 break;
 
         case SOCKET_STOP_POST:
-                log_warning("%s stopping timed out (2). Terminating.", u->id);
+                log_warning_unit(u->id,
+                                 "%s stopping timed out (2). Terminating.", u->id);
                 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT);
                 break;
 
         case SOCKET_FINAL_SIGTERM:
                 if (s->kill_context.send_sigkill) {
-                        log_warning("%s stopping timed out (2). Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out (2). Killing.", u->id);
                         socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s stopping timed out (2). Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s stopping timed out (2). Skipping SIGKILL. Ignoring.",
+                                         u->id);
                         socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT);
                 }
                 break;
 
         case SOCKET_FINAL_SIGKILL:
-                log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
+                log_warning_unit(u->id,
+                                 "%s still around after SIGKILL (2). Entering failed mode.",
+                                 u->id);
                 socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT);
                 break;
 
@@ -2171,7 +2255,9 @@ void socket_notify_service_dead(Socket *s, bool failed_permanent) {
          * services. */
 
         if (s->state == SOCKET_RUNNING) {
-                log_debug("%s got notified about service death (failed permanently: %s)", UNIT(s)->id, yes_no(failed_permanent));
+                log_debug_unit(UNIT(s)->id,
+                               "%s got notified about service death (failed permanently: %s)",
+                               UNIT(s)->id, yes_no(failed_permanent));
                 if (failed_permanent)
                         socket_enter_stop_pre(s, SOCKET_FAILURE_SERVICE_FAILED_PERMANENT);
                 else
@@ -2190,7 +2276,8 @@ void socket_connection_unref(Socket *s) {
         assert(s->n_connections > 0);
         s->n_connections--;
 
-        log_debug("%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections);
+        log_debug_unit(UNIT(s)->id,
+                       "%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections);
 }
 
 static void socket_reset_failed(Unit *u) {
diff --git a/src/core/swap.c b/src/core/swap.c
index bd40516c99..c8e25d0665 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -225,12 +225,16 @@ static int swap_verify(Swap *s) {
 
         b = unit_has_name(UNIT(s), e);
         if (!b) {
-                log_error("%s: Value of \"What\" and unit name do not match, not loading.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s: Value of \"What\" and unit name do not match, not loading.",
+                               UNIT(s)->id);
                 return -EINVAL;
         }
 
         if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
-                log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing to load.", UNIT(s)->id);
+                log_error_unit(UNIT(s)->id,
+                               "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing to load.",
+                               UNIT(s)->id);
                 return -EINVAL;
         }
 
@@ -398,7 +402,7 @@ static int swap_add_one(
         return 0;
 
 fail:
-        log_warning("Failed to load swap unit: %s", strerror(-r));
+        log_warning_unit(e, "Failed to load swap unit: %s", strerror(-r));
 
         free(wp);
 
@@ -483,10 +487,11 @@ static void swap_set_state(Swap *s, SwapState state) {
         }
 
         if (state != old_state)
-                log_debug("%s changed %s -> %s",
-                          UNIT(s)->id,
-                          swap_state_to_string(old_state),
-                          swap_state_to_string(state));
+                log_debug_unit(UNIT(s)->id,
+                               "%s changed %s -> %s",
+                               UNIT(s)->id,
+                               swap_state_to_string(old_state),
+                               swap_state_to_string(state));
 
         unit_notify(UNIT(s), state_translation_table[old_state],
                     state_translation_table[state], true);
@@ -656,7 +661,9 @@ static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) {
                 if (s->control_pid > 0) {
                         if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
 
-                                log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
+                                log_warning_unit(UNIT(s)->id,
+                                                 "Failed to kill control process %li: %m",
+                                                 (long) s->control_pid);
                         else
                                 wait_for_exit = true;
                 }
@@ -679,7 +686,8 @@ static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) {
                         r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
                         if (r < 0) {
                                 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
-                                        log_warning("Failed to kill control group: %s", strerror(-r));
+                                        log_warning_unit(UNIT(s)->id,
+                                                         "Failed to kill control group: %s", strerror(-r));
                         } else if (r > 0)
                                 wait_for_exit = true;
 
@@ -700,7 +708,8 @@ static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) {
         return;
 
 fail:
-        log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
 
         swap_enter_dead(s, SWAP_FAILURE_RESOURCES);
 
@@ -755,7 +764,9 @@ static void swap_enter_activating(Swap *s) {
         return;
 
 fail:
-        log_warning("%s failed to run 'swapon' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'swapon' task: %s",
+                         UNIT(s)->id, strerror(-r));
         swap_enter_dead(s, SWAP_FAILURE_RESOURCES);
 }
 
@@ -785,7 +796,9 @@ static void swap_enter_deactivating(Swap *s) {
         return;
 
 fail:
-        log_warning("%s failed to run 'swapoff' task: %s", UNIT(s)->id, strerror(-r));
+        log_warning_unit(UNIT(s)->id,
+                         "%s failed to run 'swapoff' task: %s",
+                         UNIT(s)->id, strerror(-r));
         swap_enter_active(s, SWAP_FAILURE_RESOURCES);
 }
 
@@ -869,7 +882,7 @@ static int swap_deserialize_item(Unit *u, const char *key, const char *value, FD
 
                 state = swap_state_from_string(value);
                 if (state < 0)
-                        log_debug("Failed to parse state value %s", value);
+                        log_debug_unit(u->id, "Failed to parse state value %s", value);
                 else
                         s->deserialized_state = state;
         } else if (streq(key, "result")) {
@@ -877,14 +890,14 @@ static int swap_deserialize_item(Unit *u, const char *key, const char *value, FD
 
                 f = swap_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse result value %s", value);
+                        log_debug_unit(u->id, "Failed to parse result value %s", value);
                 else if (f != SWAP_SUCCESS)
                         s->result = f;
         } else if (streq(key, "control-pid")) {
                 pid_t pid;
 
                 if (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse control-pid value %s", value);
+                        log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
                 else
                         s->control_pid = pid;
 
@@ -893,14 +906,14 @@ static int swap_deserialize_item(Unit *u, const char *key, const char *value, FD
 
                 id = swap_exec_command_from_string(value);
                 if (id < 0)
-                        log_debug("Failed to parse exec-command value %s", value);
+                        log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
                 else {
                         s->control_command_id = id;
                         s->control_command = s->exec_command + id;
                 }
 
         } else
-                log_debug("Unknown serialization key '%s'", key);
+                log_debug_unit(u->id, "Unknown serialization key '%s'", key);
 
         return 0;
 }
@@ -958,8 +971,10 @@ static void swap_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                 s->control_command_id = _SWAP_EXEC_COMMAND_INVALID;
         }
 
-        log_full(f == SWAP_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
-                 "%s swap process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
+        log_full_unit(f == SWAP_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
+                      u->id,
+                      "%s swap process exited, code=%s status=%i",
+                      u->id, sigchld_code_to_string(code), status);
 
         switch (s->state) {
 
@@ -1005,38 +1020,38 @@ static void swap_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
         switch (s->state) {
 
         case SWAP_ACTIVATING:
-                log_warning("%s activation timed out. Stopping.", u->id);
+                log_warning_unit(u->id, "%s activation timed out. Stopping.", u->id);
                 swap_enter_signal(s, SWAP_ACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT);
                 break;
 
         case SWAP_DEACTIVATING:
-                log_warning("%s deactivation timed out. Stopping.", u->id);
+                log_warning_unit(u->id, "%s deactivation timed out. Stopping.", u->id);
                 swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT);
                 break;
 
         case SWAP_ACTIVATING_SIGTERM:
                 if (s->kill_context.send_sigkill) {
-                        log_warning("%s activation timed out. Killing.", u->id);
+                        log_warning_unit(u->id, "%s activation timed out. Killing.", u->id);
                         swap_enter_signal(s, SWAP_ACTIVATING_SIGKILL, SWAP_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s activation timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id, "%s activation timed out. Skipping SIGKILL. Ignoring.", u->id);
                         swap_enter_dead(s, SWAP_FAILURE_TIMEOUT);
                 }
                 break;
 
         case SWAP_DEACTIVATING_SIGTERM:
                 if (s->kill_context.send_sigkill) {
-                        log_warning("%s deactivation timed out. Killing.", u->id);
+                        log_warning_unit(u->id, "%s deactivation timed out. Killing.", u->id);
                         swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s deactivation timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id, "%s deactivation timed out. Skipping SIGKILL. Ignoring.", u->id);
                         swap_enter_dead(s, SWAP_FAILURE_TIMEOUT);
                 }
                 break;
 
         case SWAP_ACTIVATING_SIGKILL:
         case SWAP_DEACTIVATING_SIGKILL:
-                log_warning("%s swap process still around after SIGKILL. Ignoring.", u->id);
+                log_warning_unit(u->id, "%s swap process still around after SIGKILL. Ignoring.", u->id);
                 swap_enter_dead(s, SWAP_FAILURE_TIMEOUT);
                 break;
 
diff --git a/src/core/timer.c b/src/core/timer.c
index bd27970449..31ef176e7e 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -76,7 +76,8 @@ static int timer_verify(Timer *t) {
                 return 0;
 
         if (!t->values) {
-                log_error("%s lacks value setting. Refusing.", UNIT(t)->id);
+                log_error_unit(UNIT(t)->id,
+                               "%s lacks value setting. Refusing.", UNIT(t)->id);
                 return -EINVAL;
         }
 
@@ -187,10 +188,10 @@ static void timer_set_state(Timer *t, TimerState state) {
         }
 
         if (state != old_state)
-                log_debug("%s changed %s -> %s",
-                          UNIT(t)->id,
-                          timer_state_to_string(old_state),
-                          timer_state_to_string(state));
+                log_debug_unit(UNIT(t)->id,
+                               "%s changed %s -> %s", UNIT(t)->id,
+                               timer_state_to_string(old_state),
+                               timer_state_to_string(state));
 
         unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state], true);
 }
@@ -312,14 +313,17 @@ static void timer_enter_waiting(Timer *t, bool initial) {
         }
 
         if (!found_monotonic && !found_realtime) {
-                log_debug("%s: Timer is elapsed.", UNIT(t)->id);
+                log_debug_unit(UNIT(t)->id, "%s: Timer is elapsed.", UNIT(t)->id);
                 timer_set_state(t, TIMER_ELAPSED);
                 return;
         }
 
         if (found_monotonic) {
                 char buf[FORMAT_TIMESPAN_MAX];
-                log_debug("%s: Monotonic timer elapses in %s the next time.", UNIT(t)->id, format_timespan(buf, sizeof(buf), t->next_elapse_monotonic - ts.monotonic));
+                log_debug_unit(UNIT(t)->id,
+                               "%s: Monotonic timer elapses in %s the next time.",
+                               UNIT(t)->id,
+                               format_timespan(buf, sizeof(buf), t->next_elapse_monotonic - ts.monotonic));
 
                 r = unit_watch_timer(UNIT(t), CLOCK_MONOTONIC, false, t->next_elapse_monotonic, &t->monotonic_watch);
                 if (r < 0)
@@ -329,7 +333,10 @@ static void timer_enter_waiting(Timer *t, bool initial) {
 
         if (found_realtime) {
                 char buf[FORMAT_TIMESTAMP_MAX];
-                log_debug("%s: Realtime timer elapses at %s the next time.", UNIT(t)->id, format_timestamp(buf, sizeof(buf), t->next_elapse_realtime));
+                log_debug_unit(UNIT(t)->id,
+                               "%s: Realtime timer elapses at %s the next time.",
+                               UNIT(t)->id,
+                               format_timestamp(buf, sizeof(buf), t->next_elapse_realtime));
 
                 r = unit_watch_timer(UNIT(t), CLOCK_REALTIME, false, t->next_elapse_realtime, &t->realtime_watch);
                 if (r < 0)
@@ -341,7 +348,9 @@ static void timer_enter_waiting(Timer *t, bool initial) {
         return;
 
 fail:
-        log_warning("%s failed to enter waiting state: %s", UNIT(t)->id, strerror(-r));
+        log_warning_unit(UNIT(t)->id,
+                         "%s failed to enter waiting state: %s",
+                         UNIT(t)->id, strerror(-r));
         timer_enter_dead(t, TIMER_FAILURE_RESOURCES);
 }
 
@@ -364,7 +373,9 @@ static void timer_enter_running(Timer *t) {
         return;
 
 fail:
-        log_warning("%s failed to queue unit startup job: %s", UNIT(t)->id, bus_error(&error, r));
+        log_warning_unit(UNIT(t)->id,
+                         "%s failed to queue unit startup job: %s",
+                         UNIT(t)->id, bus_error(&error, r));
         timer_enter_dead(t, TIMER_FAILURE_RESOURCES);
 
         dbus_error_free(&error);
@@ -420,7 +431,7 @@ static int timer_deserialize_item(Unit *u, const char *key, const char *value, F
 
                 state = timer_state_from_string(value);
                 if (state < 0)
-                        log_debug("Failed to parse state value %s", value);
+                        log_debug_unit(u->id, "Failed to parse state value %s", value);
                 else
                         t->deserialized_state = state;
         } else if (streq(key, "result")) {
@@ -428,12 +439,12 @@ static int timer_deserialize_item(Unit *u, const char *key, const char *value, F
 
                 f = timer_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse result value %s", value);
+                        log_debug_unit(u->id, "Failed to parse result value %s", value);
                 else if (f != TIMER_SUCCESS)
                         t->result = f;
 
         } else
-                log_debug("Unknown serialization key '%s'", key);
+                log_debug_unit(u->id, "Unknown serialization key '%s'", key);
 
         return 0;
 }
@@ -459,7 +470,7 @@ static void timer_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
         if (t->state != TIMER_WAITING)
                 return;
 
-        log_debug("Timer elapsed on %s", u->id);
+        log_debug_unit(u->id, "Timer elapsed on %s", u->id);
         timer_enter_running(t);
 }
 
@@ -500,7 +511,9 @@ void timer_unit_notify(Unit *u, UnitActiveState new_state) {
                 case TIMER_RUNNING:
 
                         if (UNIT_IS_INACTIVE_OR_FAILED(new_state)) {
-                                log_debug("%s got notified about unit deactivation.", UNIT(t)->id);
+                                log_debug_unit(UNIT(t)->id,
+                                               "%s got notified about unit deactivation.",
+                                               UNIT(t)->id);
                                 timer_enter_waiting(t, false);
                         }
 
@@ -535,7 +548,8 @@ static void timer_time_change(Unit *u) {
         if (t->state != TIMER_WAITING)
                 return;
 
-        log_info("%s: time change, recalculating next elapse.", u->id);
+        log_info_unit(u->id,
+                      "%s: time change, recalculating next elapse.", u->id);
         timer_enter_waiting(t, false);
 }
 
diff --git a/src/core/transaction.c b/src/core/transaction.c
index ee6992a81a..1854047afd 100644
--- a/src/core/transaction.c
+++ b/src/core/transaction.c
@@ -186,8 +186,14 @@ static int delete_one_unmergeable_job(Transaction *tr, Job *j) {
                                  * another unit in which case we
                                  * rather remove the start. */
 
-                                log_debug("Looking at job %s/%s conflicted_by=%s", j->unit->id, job_type_to_string(j->type), yes_no(j->type == JOB_STOP && job_is_conflicted_by(j)));
-                                log_debug("Looking at job %s/%s conflicted_by=%s", k->unit->id, job_type_to_string(k->type), yes_no(k->type == JOB_STOP && job_is_conflicted_by(k)));
+                                log_debug_unit(j->unit->id,
+                                               "Looking at job %s/%s conflicted_by=%s",
+                                               j->unit->id, job_type_to_string(j->type),
+                                               yes_no(j->type == JOB_STOP && job_is_conflicted_by(j)));
+                                log_debug_unit(k->unit->id,
+                                               "Looking at job %s/%s conflicted_by=%s",
+                                               k->unit->id, job_type_to_string(k->type),
+                                               yes_no(k->type == JOB_STOP && job_is_conflicted_by(k)));
 
                                 if (j->type == JOB_STOP) {
 
@@ -213,7 +219,9 @@ static int delete_one_unmergeable_job(Transaction *tr, Job *j) {
                                 return -ENOEXEC;
 
                         /* Ok, we can drop one, so let's do so. */
-                        log_debug("Fixing conflicting jobs by deleting job %s/%s", d->unit->id, job_type_to_string(d->type));
+                        log_debug_unit(d->unit->id,
+                                       "Fixing conflicting jobs by deleting job %s/%s",
+                                       d->unit->id, job_type_to_string(d->type));
                         transaction_delete_job(tr, d, true);
                         return 0;
                 }
@@ -352,12 +360,17 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
                  * job to remove. We use the marker to find our way
                  * back, since smart how we are we stored our way back
                  * in there. */
-                log_warning("Found ordering cycle on %s/%s", j->unit->id, job_type_to_string(j->type));
+                log_warning_unit(j->unit->id,
+                                 "Found ordering cycle on %s/%s",
+                                 j->unit->id, job_type_to_string(j->type));
 
                 delete = NULL;
                 for (k = from; k; k = ((k->generation == generation && k->marker != k) ? k->marker : NULL)) {
 
-                        log_info("Walked on cycle path to %s/%s", k->unit->id, job_type_to_string(k->type));
+                        /* logging for j not k here here to provide consistent narrative */
+                        log_info_unit(j->unit->id,
+                                      "Walked on cycle path to %s/%s",
+                                      k->unit->id, job_type_to_string(k->type));
 
                         if (!delete &&
                             !unit_matters_to_anchor(k->unit, k)) {
@@ -374,15 +387,24 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
 
 
                 if (delete) {
-                        log_error("Breaking ordering cycle by deleting job %s/%s", delete->unit->id, job_type_to_string(delete->type));
-                        status_printf(ANSI_HIGHLIGHT_RED_ON " SKIP " ANSI_HIGHLIGHT_OFF, true, "Ordering cycle found, skip %s", unit_description(delete->unit));
+                        /* logging for j not k here here to provide consistent narrative */
+                        log_warning_unit(j->unit->id,
+                                         "Breaking ordering cycle by deleting job %s/%s",
+                                         delete->unit->id, job_type_to_string(delete->type));
+                        log_error_unit(delete->unit->id,
+                                       "Job %s/%s deleted to break ordering cycle starting with %s/%s",
+                                       delete->unit->id, job_type_to_string(delete->type),
+                                       j->unit->id, job_type_to_string(j->type));
+                        status_printf(ANSI_HIGHLIGHT_RED_ON " SKIP " ANSI_HIGHLIGHT_OFF, true,
+                                      "Ordering cycle found, skipping %s", unit_description(delete->unit));
                         transaction_delete_unit(tr, delete->unit);
                         return -EAGAIN;
                 }
 
                 log_error("Unable to break cycle");
 
-                dbus_set_error(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC, "Transaction order is cyclic. See system logs for details.");
+                dbus_set_error(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC,
+                               "Transaction order is cyclic. See system logs for details.");
                 return -ENOEXEC;
         }
 
@@ -525,13 +547,19 @@ rescan:
                                 continue;
 
                         if (stops_running_service)
-                                log_debug("%s/%s would stop a running service.", j->unit->id, job_type_to_string(j->type));
+                                log_debug_unit(j->unit->id,
+                                               "%s/%s would stop a running service.",
+                                               j->unit->id, job_type_to_string(j->type));
 
                         if (changes_existing_job)
-                                log_debug("%s/%s would change existing job.", j->unit->id, job_type_to_string(j->type));
+                                log_debug_unit(j->unit->id,
+                                               "%s/%s would change existing job.",
+                                               j->unit->id, job_type_to_string(j->type));
 
                         /* Ok, let's get rid of this */
-                        log_debug("Deleting %s/%s to minimize impact.", j->unit->id, job_type_to_string(j->type));
+                        log_debug_unit(j->unit->id,
+                                       "Deleting %s/%s to minimize impact.",
+                                       j->unit->id, job_type_to_string(j->type));
 
                         transaction_delete_job(tr, j, true);
                         goto rescan;
@@ -783,9 +811,10 @@ static void transaction_unlink_job(Transaction *tr, Job *j, bool delete_dependen
                 job_dependency_free(j->object_list);
 
                 if (other && delete_dependencies) {
-                        log_debug("Deleting job %s/%s as dependency of job %s/%s",
-                                  other->unit->id, job_type_to_string(other->type),
-                                  j->unit->id, job_type_to_string(j->type));
+                        log_debug_unit(other->unit->id,
+                                       "Deleting job %s/%s as dependency of job %s/%s",
+                                       other->unit->id, job_type_to_string(other->type),
+                                       j->unit->id, job_type_to_string(j->type));
                         transaction_delete_job(tr, other, delete_dependencies);
                 }
         }
@@ -871,7 +900,9 @@ int transaction_add_job_and_dependencies(
                         SET_FOREACH(dep, following, i) {
                                 r = transaction_add_job_and_dependencies(tr, type, dep, ret, false, override, false, false, ignore_order, e);
                                 if (r < 0) {
-                                        log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r));
+                                        log_warning_unit(dep->id,
+                                                         "Cannot add dependency job for unit %s, ignoring: %s",
+                                                         dep->id, bus_error(e, r));
 
                                         if (e)
                                                 dbus_error_free(e);
@@ -908,8 +939,9 @@ int transaction_add_job_and_dependencies(
                         SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUIRES_OVERRIDABLE], i) {
                                 r = transaction_add_job_and_dependencies(tr, JOB_START, dep, ret, !override, override, false, false, ignore_order, e);
                                 if (r < 0) {
-                                        log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING,
-                                                 "Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r));
+                                        log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id,
+                                                      "Cannot add dependency job for unit %s, ignoring: %s",
+                                                      dep->id, bus_error(e, r));
 
                                         if (e)
                                                 dbus_error_free(e);
@@ -919,8 +951,9 @@ int transaction_add_job_and_dependencies(
                         SET_FOREACH(dep, ret->unit->dependencies[UNIT_WANTS], i) {
                                 r = transaction_add_job_and_dependencies(tr, JOB_START, dep, ret, false, false, false, false, ignore_order, e);
                                 if (r < 0) {
-                                        log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING,
-                                                 "Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r));
+                                        log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id,
+                                                      "Cannot add dependency job for unit %s, ignoring: %s",
+                                                      dep->id, bus_error(e, r));
 
                                         if (e)
                                                 dbus_error_free(e);
@@ -941,8 +974,9 @@ int transaction_add_job_and_dependencies(
                         SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUISITE_OVERRIDABLE], i) {
                                 r = transaction_add_job_and_dependencies(tr, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, false, ignore_order, e);
                                 if (r < 0) {
-                                        log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING,
-                                                 "Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r));
+                                        log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id,
+                                                      "Cannot add dependency job for unit %s, ignoring: %s",
+                                                      dep->id, bus_error(e, r));
 
                                         if (e)
                                                 dbus_error_free(e);
@@ -963,7 +997,9 @@ int transaction_add_job_and_dependencies(
                         SET_FOREACH(dep, ret->unit->dependencies[UNIT_CONFLICTED_BY], i) {
                                 r = transaction_add_job_and_dependencies(tr, JOB_STOP, dep, ret, false, override, false, false, ignore_order, e);
                                 if (r < 0) {
-                                        log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r));
+                                        log_warning_unit(dep->id,
+                                                         "Cannot add dependency job for unit %s, ignoring: %s",
+                                                         dep->id, bus_error(e, r));
 
                                         if (e)
                                                 dbus_error_free(e);
@@ -1014,7 +1050,9 @@ int transaction_add_job_and_dependencies(
                         SET_FOREACH(dep, ret->unit->dependencies[UNIT_PROPAGATES_RELOAD_TO], i) {
                                 r = transaction_add_job_and_dependencies(tr, JOB_RELOAD, dep, ret, false, override, false, false, ignore_order, e);
                                 if (r < 0) {
-                                        log_warning("Cannot add dependency reload job for unit %s, ignoring: %s", dep->id, bus_error(e, r));
+                                        log_warning_unit(dep->id,
+                                                         "Cannot add dependency reload job for unit %s, ignoring: %s",
+                                                         dep->id, bus_error(e, r));
 
                                         if (e)
                                                 dbus_error_free(e);
@@ -1059,7 +1097,9 @@ int transaction_add_isolate_jobs(Transaction *tr, Manager *m) {
 
                 r = transaction_add_job_and_dependencies(tr, JOB_STOP, u, tr->anchor_job, true, false, false, false, false, NULL);
                 if (r < 0)
-                        log_warning("Cannot add isolate job for unit %s, ignoring: %s", u->id, strerror(-r));
+                        log_warning_unit(u->id,
+                                         "Cannot add isolate job for unit %s, ignoring: %s",
+                                         u->id, strerror(-r));
         }
 
         return 0;