#include "dbus-swap.h"
#include "special.h"
#include "bus-errors.h"
+#include "exit-status.h"
+#include "def.h"
static const UnitActiveState state_translation_table[_SWAP_STATE_MAX] = {
[SWAP_DEAD] = UNIT_INACTIVE,
s->parameters_proc_swaps.what = NULL;
}
- static void swap_init(Unit *u) {
+static void swap_init(Unit *u) {
Swap *s = SWAP(u);
assert(s);
s->timeout_usec = DEFAULT_TIMEOUT_USEC;
exec_context_init(&s->exec_context);
+ s->exec_context.std_output = u->meta.manager->default_std_output;
+ s->exec_context.std_error = u->meta.manager->default_std_error;
s->parameters_etc_fstab.priority = s->parameters_proc_swaps.priority = s->parameters_fragment.priority = -1;
s->timer_watch.type = WATCH_INVALID;
s->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
+
+ s->meta.ignore_on_isolate = true;
}
static void swap_unwatch_control_pid(Swap *s) {
assert(s);
- LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_MOUNT])
+ LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_MOUNT])
if ((r = swap_add_one_mount_link(s, (Mount*) other)) < 0)
return r;
return r;
if (!p->noauto &&
+ !p->nofail &&
(p->handle || s->meta.manager->swap_auto) &&
- !s->from_fragment &&
+ s->from_etc_fstab &&
s->meta.manager->running_as == MANAGER_SYSTEM)
if ((r = unit_add_dependency(tu, UNIT_WANTS, UNIT(s), true)) < 0)
return r;
else
return 0;
- return unit_add_node_link(UNIT(s), s->what,
- !p->noauto && p->nofail &&
- s->meta.manager->running_as == MANAGER_SYSTEM);
+ if (is_device_path(s->what))
+ return unit_add_node_link(UNIT(s), s->what,
+ !p->noauto && p->nofail &&
+ s->meta.manager->running_as == MANAGER_SYSTEM);
+ else
+ /* File based swap devices need to be ordered after
+ * remount-rootfs.service, since they might need a
+ * writable file system. */
+ return unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_REMOUNT_ROOTFS_SERVICE, NULL, true);
}
static int swap_add_default_dependencies(Swap *s) {
if (s->meta.manager->running_as == MANAGER_SYSTEM) {
- if ((r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0)
- return r;
-
- if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_UMOUNT_TARGET, NULL, true)) < 0)
+ if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true)) < 0)
return r;
}
return r;
if (u->meta.load_state == UNIT_LOADED) {
+ if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
+ return r;
if (s->meta.fragment_path)
s->from_fragment = true;
if ((r = unit_set_description(u, s->what)) < 0)
return r;
-
if ((r = swap_add_device_links(s)) < 0)
return r;
if ((r = swap_add_target_links(s)) < 0)
return r;
+ if ((r = unit_add_default_cgroups(u)) < 0)
+ return r;
+
if (s->meta.default_dependencies)
if ((r = swap_add_default_dependencies(s)) < 0)
return r;
assert(m);
assert(what);
- if (!(e = unit_name_from_path(what, ".swap")))
+ e = unit_name_from_path(what, ".swap");
+ if (!e)
return -ENOMEM;
u = manager_get_unit(m, e);
if (!u) {
delete = true;
- if (!(u = unit_new(m))) {
+ u = unit_new(m, sizeof(Swap));
+ if (!u) {
free(e);
return -ENOMEM;
}
- if ((r = unit_add_name(u, e)) < 0)
+ r = unit_add_name(u, e);
+ if (r < 0)
goto fail;
- if (!(SWAP(u)->what = strdup(what))) {
+ SWAP(u)->what = strdup(what);
+ if (!SWAP(u)->what) {
r = -ENOMEM;
goto fail;
}
swap_state_to_string(old_state),
swap_state_to_string(state));
- unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
+ unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true);
}
static int swap_coldplug(Unit *u) {
true,
s->meta.manager->confirm_spawn,
s->meta.cgroup_bondings,
+ s->meta.cgroup_attributes,
&pid)) < 0)
goto fail;
state == SWAP_DEACTIVATING_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
if (s->control_pid > 0) {
- if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
- -s->control_pid :
- s->control_pid, sig) < 0 && errno != ESRCH)
+ if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
else
if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
goto fail;
- if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
+ if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
log_warning("Failed to kill control group: %s", strerror(-r));
} else if (r > 0)
wait_for_exit = true;
set_free(pid_set);
+ pid_set = NULL;
}
}
s->failure = s->failure || !success;
if (s->control_command) {
- exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
+ exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
s->control_command = NULL;
s->control_command_id = _SWAP_EXEC_COMMAND_INVALID;
}
break;
case SWAP_ACTIVATING_SIGTERM:
- log_warning("%s activation timed out. Killing.", u->meta.id);
- swap_enter_signal(s, SWAP_ACTIVATING_SIGKILL, false);
+ if (s->exec_context.send_sigkill) {
+ log_warning("%s activation timed out. Killing.", u->meta.id);
+ swap_enter_signal(s, SWAP_ACTIVATING_SIGKILL, false);
+ } else {
+ log_warning("%s activation timed out. Skipping SIGKILL. Ignoring.", u->meta.id);
+ swap_enter_dead(s, false);
+ }
break;
case SWAP_DEACTIVATING_SIGTERM:
- log_warning("%s deactivation timed out. Killing.", u->meta.id);
- swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, false);
+ if (s->exec_context.send_sigkill) {
+ log_warning("%s deactivation timed out. Killing.", u->meta.id);
+ swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, false);
+ } else {
+ log_warning("%s deactivation timed out. Skipping SIGKILL. Ignoring.", u->meta.id);
+ swap_enter_dead(s, false);
+ }
break;
case SWAP_ACTIVATING_SIGKILL:
assert(m);
assert(events & EPOLLPRI);
- if ((r == swap_load_proc_swaps(m, true)) < 0) {
+ if ((r = swap_load_proc_swaps(m, true)) < 0) {
log_error("Failed to reread /proc/swaps: %s", strerror(-r));
/* Reset flags, just in case, for late calls */
- LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_SWAP]) {
+ LIST_FOREACH(units_by_type, meta, m->units_by_type[UNIT_SWAP]) {
Swap *swap = (Swap*) meta;
swap->is_active = swap->just_activated = false;
manager_dispatch_load_queue(m);
- LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_SWAP]) {
+ LIST_FOREACH(units_by_type, meta, m->units_by_type[UNIT_SWAP]) {
Swap *swap = (Swap*) meta;
if (!swap->is_active) {
return UNIT(first);
}
+static int swap_following_set(Unit *u, Set **_set) {
+ Swap *s = SWAP(u);
+ Swap *other;
+ Set *set;
+ int r;
+
+ assert(s);
+ assert(_set);
+
+ if (LIST_JUST_US(same_proc_swaps, s)) {
+ *_set = NULL;
+ return 0;
+ }
+
+ if (!(set = set_new(NULL, NULL)))
+ return -ENOMEM;
+
+ LIST_FOREACH_AFTER(same_proc_swaps, other, s)
+ if ((r = set_put(set, other)) < 0)
+ goto fail;
+
+ LIST_FOREACH_BEFORE(same_proc_swaps, other, s)
+ if ((r = set_put(set, other)) < 0)
+ goto fail;
+
+ *_set = set;
+ return 1;
+
+fail:
+ set_free(set);
+ return r;
+}
+
static void swap_shutdown(Manager *m) {
assert(m);
if (!m->proc_swaps) {
if (!(m->proc_swaps = fopen("/proc/swaps", "re")))
- return -errno;
+ return (errno == ENOENT) ? 0 : -errno;
m->swap_watch.type = WATCH_SWAP;
m->swap_watch.fd = fileno(m->proc_swaps);
if (who == KILL_MAIN) {
dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "Swap units have no main processes");
- return -EINVAL;
+ return -ESRCH;
}
if (s->control_pid <= 0 && who == KILL_CONTROL) {
dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
- return -ENOENT;
+ return -ESRCH;
}
- if (s->control_pid > 0)
- if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
- r = -errno;
+ if (who == KILL_CONTROL || who == KILL_ALL)
+ if (s->control_pid > 0)
+ if (kill(s->control_pid, signo) < 0)
+ r = -errno;
- if (mode == KILL_CONTROL_GROUP) {
+ if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
int q;
if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
goto finish;
}
- if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0)
- if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+ if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
+ if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
r = q;
}
const UnitVTable swap_vtable = {
.suffix = ".swap",
+ .object_size = sizeof(Swap),
+ .sections =
+ "Unit\0"
+ "Swap\0"
+ "Install\0",
.no_alias = true,
.no_instances = true,
- .no_isolate = true,
.show_status = true,
.init = swap_init,
.bus_invalidating_properties = bus_swap_invalidating_properties,
.following = swap_following,
+ .following_set = swap_following_set,
.enumerate = swap_enumerate,
.shutdown = swap_shutdown
~ianmdlvl / elogind.git / blobdiff