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remove unused variable
[elogind.git] / src / core / mount.c
diff --git a/src/core/mount.c b/src/core/mount.c
index 99e7cedc459da0144f7ff79fd388a50cdb5c307d..77493dbd3c40c4ca72a9a96e4a385490c6a4199d 100644 (file)
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -138,11 +138,13 @@ static void mount_init(Unit *u) {
         m->directory_mode = 0755;
 
         exec_context_init(&m->exec_context);
+        kill_context_init(&m->kill_context);
+        cgroup_context_init(&m->cgroup_context);
 
         if (unit_has_name(u, "-.mount")) {
                 /* Don't allow start/stop for root directory */
-                UNIT(m)->refuse_manual_start = true;
-                UNIT(m)->refuse_manual_stop = true;
+                u->refuse_manual_start = true;
+                u->refuse_manual_stop = true;
         } else {
                 /* The stdio/kmsg bridge socket is on /, in order to avoid a
                  * dep loop, don't use kmsg logging for -.mount */
@@ -150,9 +152,6 @@ static void mount_init(Unit *u) {
                 m->exec_context.std_error = u->manager->default_std_error;
         }
 
-        kill_context_init(&m->kill_context);
-        cgroup_context_init(&m->cgroup_context);
-
         /* We need to make sure that /bin/mount is always called in
          * the same process group as us, so that the autofs kernel
          * side doesn't send us another mount request while we are
@@ -161,7 +160,7 @@ static void mount_init(Unit *u) {
 
         m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
 
-        UNIT(m)->ignore_on_isolate = true;
+        u->ignore_on_isolate = true;
 }
 
 static int mount_arm_timer(Mount *m) {
@@ -217,7 +216,8 @@ static void mount_done(Unit *u) {
         mount_parameters_done(&m->parameters_fragment);
 
         cgroup_context_done(&m->cgroup_context);
-        exec_context_done(&m->exec_context, manager_is_reloading_or_reexecuting(u->manager));
+        exec_context_done(&m->exec_context);
+        m->exec_runtime = exec_runtime_unref(m->exec_runtime);
         exec_command_done_array(m->exec_command, _MOUNT_EXEC_COMMAND_MAX);
         m->control_command = NULL;
 
@@ -502,29 +502,22 @@ static int mount_verify(Mount *m) {
 
         b = unit_has_name(UNIT(m), e);
         if (!b) {
-                log_error_unit(UNIT(m)->id,
-                               "%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_unit(UNIT(m)->id,
-                               "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_unit(UNIT(m)->id,
-                               "%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_unit(UNIT(m)->id,
-                               "%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;
         }
 
@@ -535,7 +528,9 @@ static int mount_add_extras(Mount *m) {
         Unit *u = UNIT(m);
         int r;
 
-        if (UNIT(m)->fragment_path)
+        assert(m);
+
+        if (u->fragment_path)
                 m->from_fragment = true;
 
         if (!m->where) {
@@ -550,7 +545,7 @@ static int mount_add_extras(Mount *m) {
         if (r < 0)
                 return r;
 
-        if (!UNIT(m)->description) {
+        if (!u->description) {
                 r = unit_set_description(u, m->where);
                 if (r < 0)
                         return r;
@@ -568,7 +563,7 @@ static int mount_add_extras(Mount *m) {
         if (r < 0)
                 return r;
 
-        if (UNIT(m)->default_dependencies) {
+        if (u->default_dependencies) {
                 r = mount_add_default_dependencies(m);
                 if (r < 0)
                         return r;
@@ -582,6 +577,10 @@ static int mount_add_extras(Mount *m) {
         if (r < 0)
                 return r;
 
+        r = unit_exec_context_defaults(u, &m->exec_context);
+        if (r < 0)
+                return r;
+
         return 0;
 }
 
@@ -605,10 +604,6 @@ static int mount_load(Unit *u) {
                 r = mount_add_extras(m);
                 if (r < 0)
                         return r;
-
-                r = unit_exec_context_defaults(u, &m->exec_context);
-                if (r < 0)
-                        return r;
         }
 
         return mount_verify(m);
@@ -694,34 +689,33 @@ static int mount_coldplug(Unit *u) {
         else if (m->from_proc_self_mountinfo)
                 new_state = MOUNT_MOUNTED;
 
-        if (new_state != m->state) {
-
-                if (new_state == MOUNT_MOUNTING ||
-                    new_state == MOUNT_MOUNTING_DONE ||
-                    new_state == MOUNT_REMOUNTING ||
-                    new_state == MOUNT_UNMOUNTING ||
-                    new_state == MOUNT_MOUNTING_SIGTERM ||
-                    new_state == MOUNT_MOUNTING_SIGKILL ||
-                    new_state == MOUNT_UNMOUNTING_SIGTERM ||
-                    new_state == MOUNT_UNMOUNTING_SIGKILL ||
-                    new_state == MOUNT_REMOUNTING_SIGTERM ||
-                    new_state == MOUNT_REMOUNTING_SIGKILL) {
-
-                        if (m->control_pid <= 0)
-                                return -EBADMSG;
-
-                        r = unit_watch_pid(UNIT(m), m->control_pid);
-                        if (r < 0)
-                                return r;
+        if (new_state == m->state)
+                return 0;
 
-                        r = mount_arm_timer(m);
-                        if (r < 0)
-                                return r;
-                }
+        if (new_state == MOUNT_MOUNTING ||
+            new_state == MOUNT_MOUNTING_DONE ||
+            new_state == MOUNT_REMOUNTING ||
+            new_state == MOUNT_UNMOUNTING ||
+            new_state == MOUNT_MOUNTING_SIGTERM ||
+            new_state == MOUNT_MOUNTING_SIGKILL ||
+            new_state == MOUNT_UNMOUNTING_SIGTERM ||
+            new_state == MOUNT_UNMOUNTING_SIGKILL ||
+            new_state == MOUNT_REMOUNTING_SIGTERM ||
+            new_state == MOUNT_REMOUNTING_SIGKILL) {
+
+                if (m->control_pid <= 0)
+                        return -EBADMSG;
+
+                r = unit_watch_pid(UNIT(m), m->control_pid);
+                if (r < 0)
+                        return r;
 
-                mount_set_state(m, new_state);
+                r = mount_arm_timer(m);
+                if (r < 0)
+                        return r;
         }
 
+        mount_set_state(m, new_state);
         return 0;
 }
 
@@ -773,6 +767,10 @@ static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
 
         unit_realize_cgroup(UNIT(m));
 
+        r = unit_setup_exec_runtime(UNIT(m));
+        if (r < 0)
+                goto fail;
+
         r = mount_arm_timer(m);
         if (r < 0)
                 goto fail;
@@ -790,6 +788,7 @@ static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
                        UNIT(m)->cgroup_path,
                        UNIT(m)->id,
                        NULL,
+                       m->exec_runtime,
                        &pid);
         if (r < 0)
                 goto fail;
@@ -815,7 +814,9 @@ static void mount_enter_dead(Mount *m, MountResult f) {
         if (f != MOUNT_SUCCESS)
                 m->result = f;
 
-        exec_context_tmp_dirs_done(&m->exec_context);
+        exec_runtime_destroy(m->exec_runtime);
+        m->exec_runtime = exec_runtime_unref(m->exec_runtime);
+
         mount_set_state(m, m->result != MOUNT_SUCCESS ? MOUNT_FAILED : MOUNT_DEAD);
 }
 
@@ -966,12 +967,6 @@ fail:
         mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
 }
 
-static void mount_enter_mounting_done(Mount *m) {
-        assert(m);
-
-        mount_set_state(m, MOUNT_MOUNTING_DONE);
-}
-
 static void mount_enter_remounting(Mount *m) {
         int r;
 
@@ -1102,8 +1097,6 @@ static int mount_serialize(Unit *u, FILE *f, FDSet *fds) {
         if (m->control_command_id >= 0)
                 unit_serialize_item(u, f, "control-command", mount_exec_command_to_string(m->control_command_id));
 
-        exec_context_serialize(&m->exec_context, UNIT(m), f);
-
         return 0;
 }
 
@@ -1160,22 +1153,6 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
                         m->control_command_id = id;
                         m->control_command = m->exec_command + id;
                 }
-        } else if (streq(key, "tmp-dir")) {
-                char *t;
-
-                t = strdup(value);
-                if (!t)
-                        return log_oom();
-
-                m->exec_context.tmp_dir = t;
-        } else if (streq(key, "var-tmp-dir")) {
-                char *t;
-
-                t = strdup(value);
-                if (!t)
-                        return log_oom();
-
-                m->exec_context.var_tmp_dir = t;
         } else
                 log_debug_unit(UNIT(m)->id,
                                "Unknown serialization key '%s'", key);
@@ -1618,6 +1595,13 @@ static int mount_enumerate(Manager *m) {
                 r = sd_event_add_io(m->event, fileno(m->proc_self_mountinfo), EPOLLPRI, mount_dispatch_io, m, &m->mount_event_source);
                 if (r < 0)
                         goto fail;
+
+                /* Dispatch this before we dispatch SIGCHLD, so that
+                 * we always get the events from /proc/self/mountinfo
+                 * before the SIGCHLD of /bin/mount. */
+                r = sd_event_source_set_priority(m->mount_event_source, -10);
+                if (r < 0)
+                        goto fail;
         }
 
         r = mount_load_proc_self_mountinfo(m, false);
@@ -1691,7 +1675,7 @@ static int mount_dispatch_io(sd_event_source *source, int fd, uint32_t revents,
                                 break;
 
                         case MOUNT_MOUNTING:
-                                mount_enter_mounting_done(mount);
+                                mount_set_state(mount, MOUNT_MOUNTING_DONE);
                                 break;
 
                         default:
@@ -1770,6 +1754,7 @@ const UnitVTable mount_vtable = {
         .exec_context_offset = offsetof(Mount, exec_context),
         .cgroup_context_offset = offsetof(Mount, cgroup_context),
         .kill_context_offset = offsetof(Mount, kill_context),
+        .exec_runtime_offset = offsetof(Mount, exec_runtime),
 
         .sections =
                 "Unit\0"
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