***/
#include <errno.h>
-#include <unistd.h>
#include <sys/epoll.h>
#include <sys/stat.h>
-#include <libudev.h>
+#include <unistd.h>
+
+#include "libudev.h"
-#include "unit.h"
-#include "swap.h"
-#include "unit-name.h"
#include "dbus-swap.h"
-#include "special.h"
+#include "escape.h"
#include "exit-status.h"
+#include "formats-util.h"
+#include "fstab-util.h"
#include "path-util.h"
-#include "virt.h"
+#include "special.h"
+#include "string-util.h"
#include "udev-util.h"
-#include "fstab-util.h"
+#include "unit-name.h"
+#include "unit.h"
+#include "virt.h"
+#include "swap.h"
static const UnitActiveState state_translation_table[_SWAP_STATE_MAX] = {
[SWAP_DEAD] = UNIT_INACTIVE,
if (!s->from_proc_swaps)
return;
- free(s->parameters_proc_swaps.what);
- s->parameters_proc_swaps.what = NULL;
+ s->parameters_proc_swaps.what = mfree(s->parameters_proc_swaps.what);
s->from_proc_swaps = false;
}
else
hashmap_remove(swaps, s->devnode);
- free(s->devnode);
- s->devnode = NULL;
+ s->devnode = mfree(s->devnode);
}
if (devnode) {
swap_unset_proc_swaps(s);
swap_set_devnode(s, NULL);
- free(s->what);
- s->what = NULL;
-
- free(s->parameters_fragment.what);
- s->parameters_fragment.what = NULL;
-
- free(s->parameters_fragment.options);
- s->parameters_fragment.options = NULL;
+ s->what = mfree(s->what);
+ s->parameters_fragment.what = mfree(s->parameters_fragment.what);
+ s->parameters_fragment.options = mfree(s->parameters_fragment.options);
s->exec_runtime = exec_runtime_unref(s->exec_runtime);
exec_command_done_array(s->exec_command, _SWAP_EXEC_COMMAND_MAX);
return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT);
}
- return sd_event_add_time(
+ r = sd_event_add_time(
UNIT(s)->manager->event,
&s->timer_event_source,
CLOCK_MONOTONIC,
now(CLOCK_MONOTONIC) + s->timeout_usec, 0,
swap_dispatch_timer, s);
+ if (r < 0)
+ return r;
+
+ (void) sd_event_source_set_description(s->timer_event_source, "swap-timer");
+
+ return 0;
}
static int swap_add_device_links(Swap *s) {
return 0;
if (is_device_path(s->what))
- return unit_add_node_link(UNIT(s), s->what, UNIT(s)->manager->running_as == SYSTEMD_SYSTEM);
+ return unit_add_node_link(UNIT(s), s->what, UNIT(s)->manager->running_as == MANAGER_SYSTEM);
else
/* File based swap devices need to be ordered after
* systemd-remount-fs.service, since they might need a
static int swap_add_default_dependencies(Swap *s) {
assert(s);
- if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
+ if (UNIT(s)->manager->running_as != MANAGER_SYSTEM)
return 0;
- if (detect_container(NULL) > 0)
+ if (detect_container() > 0)
return 0;
return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
}
static int swap_verify(Swap *s) {
- bool b;
_cleanup_free_ char *e = NULL;
+ int r;
if (UNIT(s)->load_state != UNIT_LOADED)
return 0;
- e = unit_name_from_path(s->what, ".swap");
- if (!e)
- return log_oom();
+ r = unit_name_from_path(s->what, ".swap", &e);
+ if (r < 0)
+ return log_unit_error_errno(UNIT(s), r, "Failed to generate unit name from path: %m");
- b = unit_has_name(UNIT(s), e);
- if (!b) {
- log_unit_error(UNIT(s)->id, "%s: Value of \"What\" and unit name do not match, not loading.", UNIT(s)->id);
+ if (!unit_has_name(UNIT(s), e)) {
+ log_unit_error(UNIT(s), "Value of What= and unit name do not match, not loading.");
return -EINVAL;
}
if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
- log_unit_error(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing to load.", UNIT(s)->id);
+ log_unit_error(UNIT(s), "Unit has PAM enabled. Kill mode must be set to 'control-group'. Refusing to load.");
return -EINVAL;
}
s->what = strdup(s->parameters_fragment.what);
else if (s->parameters_proc_swaps.what)
s->what = strdup(s->parameters_proc_swaps.what);
- else
- s->what = unit_name_to_path(u->id);
+ else {
+ r = unit_name_to_path(u->id, &s->what);
+ if (r < 0)
+ return r;
+ }
if (!s->what)
return -ENOMEM;
if (r < 0)
return r;
- r = unit_add_default_slice(u, &s->cgroup_context);
+ r = unit_set_default_slice(u);
if (r < 0)
return r;
assert(what);
assert(what_proc_swaps);
- e = unit_name_from_path(what, ".swap");
- if (!e)
- return log_oom();
+ r = unit_name_from_path(what, ".swap", &e);
+ if (r < 0)
+ return log_unit_error_errno(u, r, "Failed to generate unit name from path: %m");
u = manager_get_unit(m, e);
return 0;
fail:
- log_unit_warning_errno(e, r, "Failed to load swap unit: %m");
+ log_unit_warning_errno(u, r, "Failed to load swap unit: %m");
if (delete && u)
unit_free(u);
}
if (state != old_state)
- log_unit_debug(UNIT(s)->id,
- "%s changed %s -> %s",
- UNIT(s)->id,
- swap_state_to_string(old_state),
- swap_state_to_string(state));
+ log_unit_debug(UNIT(s), "Changed %s -> %s", 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);
job_add_to_run_queue(UNIT(other)->job);
}
-static int swap_coldplug(Unit *u, Hashmap *deferred_work) {
+static int swap_coldplug(Unit *u) {
Swap *s = SWAP(u);
SwapState new_state = SWAP_DEAD;
int r;
.apply_permissions = true,
.apply_chroot = true,
.apply_tty_stdin = true,
+ .bus_endpoint_fd = -1,
+ .stdin_fd = -1,
+ .stdout_fd = -1,
+ .stderr_fd = -1,
};
assert(s);
exec_params.cgroup_path = UNIT(s)->cgroup_path;
exec_params.cgroup_delegate = s->cgroup_context.delegate;
exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager);
- exec_params.unit_id = UNIT(s)->id;
- r = exec_spawn(c,
+ r = exec_spawn(UNIT(s),
+ c,
&s->exec_context,
&exec_params,
s->exec_runtime,
return;
fail:
- log_unit_warning_errno(UNIT(s)->id, r, "%s failed to kill processes: %m", UNIT(s)->id);
+ log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m");
swap_enter_dead(s, SWAP_FAILURE_RESOURCES);
}
static void swap_enter_activating(Swap *s) {
- _cleanup_free_ char *discard = NULL;
- int r, priority = -1;
+ _cleanup_free_ char *opts = NULL;
+ int r;
assert(s);
s->control_command = s->exec_command + SWAP_EXEC_ACTIVATE;
if (s->from_fragment) {
- fstab_filter_options(s->parameters_fragment.options, "discard\0",
- NULL, &discard, NULL);
+ int priority = -1;
+
+ r = fstab_find_pri(s->parameters_fragment.options, &priority);
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse swap priority \"%s\", ignoring: %m", s->parameters_fragment.options);
+ else if (r == 1 && s->parameters_fragment.priority >= 0)
+ log_warning("Duplicate swap priority configuration by Priority and Options fields.");
- priority = s->parameters_fragment.priority;
- if (priority < 0) {
- r = fstab_find_pri(s->parameters_fragment.options, &priority);
+ if (r <= 0 && s->parameters_fragment.priority >= 0) {
+ if (s->parameters_fragment.options)
+ r = asprintf(&opts, "%s,pri=%i", s->parameters_fragment.options, s->parameters_fragment.priority);
+ else
+ r = asprintf(&opts, "pri=%i", s->parameters_fragment.priority);
if (r < 0)
- log_notice_errno(r, "Failed to parse swap priority \"%s\", ignoring: %m",
- s->parameters_fragment.options);
+ goto fail;
}
}
if (r < 0)
goto fail;
- if (priority >= 0) {
- char p[DECIMAL_STR_MAX(int)];
-
- sprintf(p, "%i", priority);
- r = exec_command_append(s->control_command, "-p", p, NULL);
- if (r < 0)
- goto fail;
- }
-
- if (discard && !streq(discard, "none")) {
- const char *discard_arg;
-
- if (streq(discard, "all"))
- discard_arg = "--discard";
- else
- discard_arg = strjoina("--discard=", discard);
-
- r = exec_command_append(s->control_command, discard_arg, NULL);
+ if (s->parameters_fragment.options || opts) {
+ r = exec_command_append(s->control_command, "-o",
+ opts ? : s->parameters_fragment.options, NULL);
if (r < 0)
goto fail;
}
return;
fail:
- log_unit_warning_errno(UNIT(s)->id, r, "%s failed to run 'swapon' task: %m", UNIT(s)->id);
+ log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapon' task: %m");
swap_enter_dead(s, SWAP_FAILURE_RESOURCES);
}
return;
fail:
- log_unit_warning_errno(UNIT(s)->id, r, "%s failed to run 'swapoff' task: %m", UNIT(s)->id);
+ log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapoff' task: %m");
swap_enter_active(s, SWAP_FAILURE_RESOURCES);
}
assert(s->state == SWAP_DEAD || s->state == SWAP_FAILED);
- if (detect_container(NULL) > 0)
+ if (detect_container() > 0)
return -EPERM;
/* If there's a job for another swap unit for the same node
s->state == SWAP_ACTIVATING_DONE ||
s->state == SWAP_ACTIVE);
- if (detect_container(NULL) > 0)
+ if (detect_container() > 0)
return -EPERM;
swap_enter_deactivating(s);
state = swap_state_from_string(value);
if (state < 0)
- log_unit_debug(u->id, "Failed to parse state value %s", value);
+ log_unit_debug(u, "Failed to parse state value: %s", value);
else
s->deserialized_state = state;
} else if (streq(key, "result")) {
f = swap_result_from_string(value);
if (f < 0)
- log_unit_debug(u->id, "Failed to parse result value %s", value);
+ log_unit_debug(u, "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_unit_debug(u->id, "Failed to parse control-pid value %s", value);
+ log_unit_debug(u, "Failed to parse control-pid value: %s", value);
else
s->control_pid = pid;
id = swap_exec_command_from_string(value);
if (id < 0)
- log_unit_debug(u->id, "Failed to parse exec-command value %s", value);
+ log_unit_debug(u, "Failed to parse exec-command value: %s", value);
else {
s->control_command_id = id;
s->control_command = s->exec_command + id;
}
} else
- log_unit_debug(u->id, "Unknown serialization key '%s'", key);
+ log_unit_debug(u, "Unknown serialization key: %s", key);
return 0;
}
s->control_command_id = _SWAP_EXEC_COMMAND_INVALID;
}
- log_unit_full(u->id,
- f == SWAP_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
- "%s swap process exited, code=%s status=%i",
- u->id, sigchld_code_to_string(code), status);
+ log_unit_full(u, f == SWAP_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0,
+ "Swap process exited, code=%s status=%i", sigchld_code_to_string(code), status);
switch (s->state) {
case SWAP_ACTIVATING:
case SWAP_ACTIVATING_DONE:
- log_unit_warning(UNIT(s)->id, "%s activation timed out. Stopping.", UNIT(s)->id);
+ log_unit_warning(UNIT(s), "Activation timed out. Stopping.");
swap_enter_signal(s, SWAP_ACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT);
break;
case SWAP_DEACTIVATING:
- log_unit_warning(UNIT(s)->id, "%s deactivation timed out. Stopping.", UNIT(s)->id);
+ log_unit_warning(UNIT(s), "Deactivation timed out. Stopping.");
swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT);
break;
case SWAP_ACTIVATING_SIGTERM:
if (s->kill_context.send_sigkill) {
- log_unit_warning(UNIT(s)->id, "%s activation timed out. Killing.", UNIT(s)->id);
+ log_unit_warning(UNIT(s), "Activation timed out. Killing.");
swap_enter_signal(s, SWAP_ACTIVATING_SIGKILL, SWAP_FAILURE_TIMEOUT);
} else {
- log_unit_warning(UNIT(s)->id, "%s activation timed out. Skipping SIGKILL. Ignoring.", UNIT(s)->id);
+ log_unit_warning(UNIT(s), "Activation timed out. Skipping SIGKILL. Ignoring.");
swap_enter_dead(s, SWAP_FAILURE_TIMEOUT);
}
break;
case SWAP_DEACTIVATING_SIGTERM:
if (s->kill_context.send_sigkill) {
- log_unit_warning(UNIT(s)->id, "%s deactivation timed out. Killing.", UNIT(s)->id);
+ log_unit_warning(UNIT(s), "Deactivation timed out. Killing.");
swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_FAILURE_TIMEOUT);
} else {
- log_unit_warning(UNIT(s)->id, "%s deactivation timed out. Skipping SIGKILL. Ignoring.", UNIT(s)->id);
+ log_unit_warning(UNIT(s), "Deactivation timed out. Skipping SIGKILL. Ignoring.");
swap_enter_dead(s, SWAP_FAILURE_TIMEOUT);
}
break;
case SWAP_ACTIVATING_SIGKILL:
case SWAP_DEACTIVATING_SIGKILL:
- log_unit_warning(UNIT(s)->id, "%s swap process still around after SIGKILL. Ignoring.", UNIT(s)->id);
+ log_unit_warning(UNIT(s), "Swap process still around after SIGKILL. Ignoring.");
swap_enter_dead(s, SWAP_FAILURE_TIMEOUT);
break;
m->swap_event_source = sd_event_source_unref(m->swap_event_source);
- if (m->proc_swaps) {
- fclose(m->proc_swaps);
- m->proc_swaps = NULL;
- }
+ m->proc_swaps = safe_fclose(m->proc_swaps);
- hashmap_free(m->swaps_by_devnode);
- m->swaps_by_devnode = NULL;
+ m->swaps_by_devnode = hashmap_free(m->swaps_by_devnode);
}
static int swap_enumerate(Manager *m) {
r = sd_event_source_set_priority(m->swap_event_source, -10);
if (r < 0)
goto fail;
+
+ (void) sd_event_source_set_description(m->swap_event_source, "swap-proc");
}
r = swap_load_proc_swaps(m, false);
if (!dn)
return 0;
- e = unit_name_from_path(dn, ".swap");
- if (!e)
- return -ENOMEM;
+ r = unit_name_from_path(dn, ".swap", &e);
+ if (r < 0)
+ return r;
s = hashmap_get(m->units, e);
if (s)
first = udev_device_get_devlinks_list_entry(dev);
udev_list_entry_foreach(item, first) {
_cleanup_free_ char *n = NULL;
+ int q;
- n = unit_name_from_path(udev_list_entry_get_name(item), ".swap");
- if (!n)
- return -ENOMEM;
+ q = unit_name_from_path(udev_list_entry_get_name(item), ".swap", &n);
+ if (q < 0)
+ return q;
s = hashmap_get(m->units, n);
if (s) {
- int q;
-
q = swap_set_devnode(s, dn);
if (q < 0)
r = q;
return 1;
}
-static bool swap_supported(Manager *m) {
+static bool swap_supported(void) {
static int supported = -1;
/* If swap support is not available in the kernel, or we are
if (supported < 0)
supported =
access("/proc/swaps", F_OK) >= 0 &&
- detect_container(NULL) <= 0;
+ detect_container() <= 0;
return supported;
}
-static const char* const swap_state_table[_SWAP_STATE_MAX] = {
- [SWAP_DEAD] = "dead",
- [SWAP_ACTIVATING] = "activating",
- [SWAP_ACTIVATING_DONE] = "activating-done",
- [SWAP_ACTIVE] = "active",
- [SWAP_DEACTIVATING] = "deactivating",
- [SWAP_ACTIVATING_SIGTERM] = "activating-sigterm",
- [SWAP_ACTIVATING_SIGKILL] = "activating-sigkill",
- [SWAP_DEACTIVATING_SIGTERM] = "deactivating-sigterm",
- [SWAP_DEACTIVATING_SIGKILL] = "deactivating-sigkill",
- [SWAP_FAILED] = "failed"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState);
-
static const char* const swap_exec_command_table[_SWAP_EXEC_COMMAND_MAX] = {
[SWAP_EXEC_ACTIVATE] = "ExecActivate",
[SWAP_EXEC_DEACTIVATE] = "ExecDeactivate",
.reset_failed = swap_reset_failed,
- .bus_interface = "org.freedesktop.systemd1.Swap",
.bus_vtable = bus_swap_vtable,
.bus_set_property = bus_swap_set_property,
.bus_commit_properties = bus_swap_commit_properties,
.finished_start_job = {
[JOB_DONE] = "Activated swap %s.",
[JOB_FAILED] = "Failed to activate swap %s.",
- [JOB_DEPENDENCY] = "Dependency failed for %s.",
[JOB_TIMEOUT] = "Timed out activating swap %s.",
},
.finished_stop_job = {
projects / thirdparty / systemd.git / blobdiff