]>
Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
07b0b134 ML |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2010 Lennart Poettering | |
07b0b134 ML |
6 | ***/ |
7 | ||
8 | #include <errno.h> | |
07b0b134 ML |
9 | #include <sys/epoll.h> |
10 | #include <sys/stat.h> | |
4f5dd394 | 11 | #include <unistd.h> |
07b0b134 | 12 | |
b4bbcaa9 TA |
13 | #include "libudev.h" |
14 | ||
b5efdb8a | 15 | #include "alloc-util.h" |
07b0b134 | 16 | #include "dbus-swap.h" |
57b7a260 | 17 | #include "device.h" |
4f5dd394 | 18 | #include "escape.h" |
9a57c629 | 19 | #include "exit-status.h" |
3ffd4af2 | 20 | #include "fd-util.h" |
f97b34a6 | 21 | #include "format-util.h" |
4f5dd394 | 22 | #include "fstab-util.h" |
6bedfcbb | 23 | #include "parse-util.h" |
9eb977db | 24 | #include "path-util.h" |
7b3e062c | 25 | #include "process-util.h" |
4f5dd394 | 26 | #include "special.h" |
8b43440b | 27 | #include "string-table.h" |
07630cea | 28 | #include "string-util.h" |
3ffd4af2 | 29 | #include "swap.h" |
5bcb0f2b | 30 | #include "udev-util.h" |
4f5dd394 LP |
31 | #include "unit-name.h" |
32 | #include "unit.h" | |
33 | #include "virt.h" | |
07b0b134 ML |
34 | |
35 | static const UnitActiveState state_translation_table[_SWAP_STATE_MAX] = { | |
36 | [SWAP_DEAD] = UNIT_INACTIVE, | |
e04aad61 | 37 | [SWAP_ACTIVATING] = UNIT_ACTIVATING, |
5bcb0f2b | 38 | [SWAP_ACTIVATING_DONE] = UNIT_ACTIVE, |
07b0b134 | 39 | [SWAP_ACTIVE] = UNIT_ACTIVE, |
e04aad61 | 40 | [SWAP_DEACTIVATING] = UNIT_DEACTIVATING, |
e04aad61 LP |
41 | [SWAP_DEACTIVATING_SIGTERM] = UNIT_DEACTIVATING, |
42 | [SWAP_DEACTIVATING_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 43 | [SWAP_FAILED] = UNIT_FAILED |
07b0b134 ML |
44 | }; |
45 | ||
718db961 LP |
46 | static int swap_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
47 | static int swap_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
48 | ||
dedf3719 LP |
49 | static bool SWAP_STATE_WITH_PROCESS(SwapState state) { |
50 | return IN_SET(state, | |
51 | SWAP_ACTIVATING, | |
52 | SWAP_ACTIVATING_DONE, | |
53 | SWAP_DEACTIVATING, | |
54 | SWAP_DEACTIVATING_SIGTERM, | |
55 | SWAP_DEACTIVATING_SIGKILL); | |
56 | } | |
57 | ||
e04aad61 | 58 | static void swap_unset_proc_swaps(Swap *s) { |
9670d583 LP |
59 | assert(s); |
60 | ||
61 | if (!s->from_proc_swaps) | |
62 | return; | |
63 | ||
a1e58e8e | 64 | s->parameters_proc_swaps.what = mfree(s->parameters_proc_swaps.what); |
9670d583 LP |
65 | |
66 | s->from_proc_swaps = false; | |
67 | } | |
68 | ||
69 | static int swap_set_devnode(Swap *s, const char *devnode) { | |
df326b84 | 70 | Hashmap *swaps; |
5bcb0f2b | 71 | Swap *first; |
9670d583 | 72 | int r; |
e04aad61 LP |
73 | |
74 | assert(s); | |
75 | ||
548f6937 | 76 | r = hashmap_ensure_allocated(&UNIT(s)->manager->swaps_by_devnode, &path_hash_ops); |
9670d583 LP |
77 | if (r < 0) |
78 | return r; | |
e04aad61 | 79 | |
9670d583 | 80 | swaps = UNIT(s)->manager->swaps_by_devnode; |
e04aad61 | 81 | |
9670d583 LP |
82 | if (s->devnode) { |
83 | first = hashmap_get(swaps, s->devnode); | |
e04aad61 | 84 | |
9670d583 LP |
85 | LIST_REMOVE(same_devnode, first, s); |
86 | if (first) | |
87 | hashmap_replace(swaps, first->devnode, first); | |
88 | else | |
89 | hashmap_remove(swaps, s->devnode); | |
5bcb0f2b | 90 | |
a1e58e8e | 91 | s->devnode = mfree(s->devnode); |
9670d583 LP |
92 | } |
93 | ||
94 | if (devnode) { | |
95 | s->devnode = strdup(devnode); | |
96 | if (!s->devnode) | |
97 | return -ENOMEM; | |
98 | ||
99 | first = hashmap_get(swaps, s->devnode); | |
100 | LIST_PREPEND(same_devnode, first, s); | |
101 | ||
102 | return hashmap_replace(swaps, first->devnode, first); | |
103 | } | |
104 | ||
105 | return 0; | |
e04aad61 LP |
106 | } |
107 | ||
f6cebb3b | 108 | static void swap_init(Unit *u) { |
6e620bec LP |
109 | Swap *s = SWAP(u); |
110 | ||
111 | assert(s); | |
1124fe6f | 112 | assert(UNIT(s)->load_state == UNIT_STUB); |
6e620bec | 113 | |
1f19a534 | 114 | s->timeout_usec = u->manager->default_timeout_start_usec; |
e04aad61 | 115 | |
ac155bb8 MS |
116 | s->exec_context.std_output = u->manager->default_std_output; |
117 | s->exec_context.std_error = u->manager->default_std_error; | |
085afe36 | 118 | |
6b1dc2bd | 119 | s->parameters_proc_swaps.priority = s->parameters_fragment.priority = -1; |
e04aad61 | 120 | |
e1770af8 | 121 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; |
c8f4d764 | 122 | |
5bcb0f2b | 123 | u->ignore_on_isolate = true; |
e04aad61 LP |
124 | } |
125 | ||
126 | static void swap_unwatch_control_pid(Swap *s) { | |
127 | assert(s); | |
128 | ||
129 | if (s->control_pid <= 0) | |
130 | return; | |
131 | ||
132 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
133 | s->control_pid = 0; | |
6e620bec LP |
134 | } |
135 | ||
4e85aff4 LP |
136 | static void swap_done(Unit *u) { |
137 | Swap *s = SWAP(u); | |
07b0b134 | 138 | |
4e85aff4 | 139 | assert(s); |
07b0b134 | 140 | |
e04aad61 | 141 | swap_unset_proc_swaps(s); |
9670d583 | 142 | swap_set_devnode(s, NULL); |
e04aad61 | 143 | |
a1e58e8e LP |
144 | s->what = mfree(s->what); |
145 | s->parameters_fragment.what = mfree(s->parameters_fragment.what); | |
146 | s->parameters_fragment.options = mfree(s->parameters_fragment.options); | |
86b23b07 | 147 | |
e8a565cb | 148 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, false); |
e04aad61 LP |
149 | exec_command_done_array(s->exec_command, _SWAP_EXEC_COMMAND_MAX); |
150 | s->control_command = NULL; | |
151 | ||
29206d46 LP |
152 | dynamic_creds_unref(&s->dynamic_creds); |
153 | ||
e04aad61 LP |
154 | swap_unwatch_control_pid(s); |
155 | ||
718db961 LP |
156 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
157 | } | |
158 | ||
36c16a7c | 159 | static int swap_arm_timer(Swap *s, usec_t usec) { |
718db961 LP |
160 | int r; |
161 | ||
162 | assert(s); | |
163 | ||
718db961 | 164 | if (s->timer_event_source) { |
36c16a7c | 165 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
166 | if (r < 0) |
167 | return r; | |
168 | ||
169 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
170 | } | |
171 | ||
36c16a7c LP |
172 | if (usec == USEC_INFINITY) |
173 | return 0; | |
174 | ||
7dfbe2e3 | 175 | r = sd_event_add_time( |
6a0f1f6d LP |
176 | UNIT(s)->manager->event, |
177 | &s->timer_event_source, | |
178 | CLOCK_MONOTONIC, | |
36c16a7c | 179 | usec, 0, |
6a0f1f6d | 180 | swap_dispatch_timer, s); |
7dfbe2e3 TG |
181 | if (r < 0) |
182 | return r; | |
183 | ||
184 | (void) sd_event_source_set_description(s->timer_event_source, "swap-timer"); | |
185 | ||
186 | return 0; | |
07b0b134 ML |
187 | } |
188 | ||
eef85c4a | 189 | static int swap_add_device_dependencies(Swap *s) { |
173a8d04 LP |
190 | assert(s); |
191 | ||
192 | if (!s->what) | |
193 | return 0; | |
194 | ||
f10af76d LP |
195 | if (!s->from_fragment) |
196 | return 0; | |
197 | ||
cfcfd4ae | 198 | if (is_device_path(s->what)) |
eef85c4a | 199 | return unit_add_node_dependency(UNIT(s), s->what, MANAGER_IS_SYSTEM(UNIT(s)->manager), UNIT_BINDS_TO, UNIT_DEPENDENCY_FILE); |
cfcfd4ae LP |
200 | else |
201 | /* File based swap devices need to be ordered after | |
2b93b027 | 202 | * systemd-remount-fs.service, since they might need a |
cfcfd4ae | 203 | * writable file system. */ |
eef85c4a | 204 | return unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_REMOUNT_FS_SERVICE, NULL, true, UNIT_DEPENDENCY_FILE); |
173a8d04 LP |
205 | } |
206 | ||
2edd4434 | 207 | static int swap_add_default_dependencies(Swap *s) { |
8bf23dc7 FB |
208 | int r; |
209 | ||
2edd4434 LP |
210 | assert(s); |
211 | ||
4c9ea260 LP |
212 | if (!UNIT(s)->default_dependencies) |
213 | return 0; | |
214 | ||
463d0d15 | 215 | if (!MANAGER_IS_SYSTEM(UNIT(s)->manager)) |
6b1dc2bd | 216 | return 0; |
2edd4434 | 217 | |
75f86906 | 218 | if (detect_container() > 0) |
c0387ebf LP |
219 | return 0; |
220 | ||
8bf23dc7 FB |
221 | /* swap units generated for the swap dev links are missing the |
222 | * ordering dep against the swap target. */ | |
eef85c4a | 223 | r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SWAP_TARGET, NULL, true, UNIT_DEPENDENCY_DEFAULT); |
8bf23dc7 FB |
224 | if (r < 0) |
225 | return r; | |
226 | ||
eef85c4a | 227 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true, UNIT_DEPENDENCY_DEFAULT); |
2edd4434 LP |
228 | } |
229 | ||
4e85aff4 | 230 | static int swap_verify(Swap *s) { |
7fd1b19b | 231 | _cleanup_free_ char *e = NULL; |
7410616c | 232 | int r; |
4e85aff4 | 233 | |
1124fe6f | 234 | if (UNIT(s)->load_state != UNIT_LOADED) |
5bcb0f2b | 235 | return 0; |
4e85aff4 | 236 | |
7410616c LP |
237 | r = unit_name_from_path(s->what, ".swap", &e); |
238 | if (r < 0) | |
f2341e0a | 239 | return log_unit_error_errno(UNIT(s), r, "Failed to generate unit name from path: %m"); |
4e85aff4 | 240 | |
7410616c | 241 | if (!unit_has_name(UNIT(s), e)) { |
f2341e0a | 242 | log_unit_error(UNIT(s), "Value of What= and unit name do not match, not loading."); |
4e85aff4 LP |
243 | return -EINVAL; |
244 | } | |
245 | ||
4819ff03 | 246 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { |
f2341e0a | 247 | log_unit_error(UNIT(s), "Unit has PAM enabled. Kill mode must be set to 'control-group'. Refusing to load."); |
e04aad61 LP |
248 | return -EINVAL; |
249 | } | |
250 | ||
4e85aff4 LP |
251 | return 0; |
252 | } | |
253 | ||
9670d583 | 254 | static int swap_load_devnode(Swap *s) { |
8e766630 | 255 | _cleanup_(udev_device_unrefp) struct udev_device *d = NULL; |
9670d583 LP |
256 | struct stat st; |
257 | const char *p; | |
258 | ||
259 | assert(s); | |
260 | ||
261 | if (stat(s->what, &st) < 0 || !S_ISBLK(st.st_mode)) | |
262 | return 0; | |
263 | ||
264 | d = udev_device_new_from_devnum(UNIT(s)->manager->udev, 'b', st.st_rdev); | |
265 | if (!d) | |
266 | return 0; | |
267 | ||
268 | p = udev_device_get_devnode(d); | |
269 | if (!p) | |
270 | return 0; | |
271 | ||
272 | return swap_set_devnode(s, p); | |
273 | } | |
274 | ||
07b0b134 ML |
275 | static int swap_load(Unit *u) { |
276 | int r; | |
277 | Swap *s = SWAP(u); | |
278 | ||
279 | assert(s); | |
ac155bb8 | 280 | assert(u->load_state == UNIT_STUB); |
07b0b134 ML |
281 | |
282 | /* Load a .swap file */ | |
3000f850 YW |
283 | if (SWAP(u)->from_proc_swaps) |
284 | r = unit_load_fragment_and_dropin_optional(u); | |
285 | else | |
286 | r = unit_load_fragment_and_dropin(u); | |
646134dc | 287 | if (r < 0) |
07b0b134 ML |
288 | return r; |
289 | ||
ac155bb8 | 290 | if (u->load_state == UNIT_LOADED) { |
4e85aff4 | 291 | |
1124fe6f | 292 | if (UNIT(s)->fragment_path) |
4e85aff4 LP |
293 | s->from_fragment = true; |
294 | ||
295 | if (!s->what) { | |
296 | if (s->parameters_fragment.what) | |
297 | s->what = strdup(s->parameters_fragment.what); | |
4e85aff4 LP |
298 | else if (s->parameters_proc_swaps.what) |
299 | s->what = strdup(s->parameters_proc_swaps.what); | |
7410616c LP |
300 | else { |
301 | r = unit_name_to_path(u->id, &s->what); | |
302 | if (r < 0) | |
303 | return r; | |
304 | } | |
4e85aff4 LP |
305 | |
306 | if (!s->what) | |
07b0b134 | 307 | return -ENOMEM; |
4e85aff4 | 308 | } |
07b0b134 ML |
309 | |
310 | path_kill_slashes(s->what); | |
311 | ||
5bcb0f2b LP |
312 | if (!UNIT(s)->description) { |
313 | r = unit_set_description(u, s->what); | |
314 | if (r < 0) | |
4e85aff4 | 315 | return r; |
5bcb0f2b | 316 | } |
4e85aff4 | 317 | |
eef85c4a | 318 | r = unit_require_mounts_for(UNIT(s), s->what, UNIT_DEPENDENCY_IMPLICIT); |
646134dc | 319 | if (r < 0) |
07b0b134 ML |
320 | return r; |
321 | ||
eef85c4a | 322 | r = swap_add_device_dependencies(s); |
646134dc | 323 | if (r < 0) |
6e2ef85b | 324 | return r; |
07b0b134 | 325 | |
9670d583 LP |
326 | r = swap_load_devnode(s); |
327 | if (r < 0) | |
328 | return r; | |
329 | ||
598459ce LP |
330 | r = unit_patch_contexts(u); |
331 | if (r < 0) | |
332 | return r; | |
333 | ||
334 | r = unit_add_exec_dependencies(u, &s->exec_context); | |
335 | if (r < 0) | |
336 | return r; | |
337 | ||
d79200e2 | 338 | r = unit_set_default_slice(u); |
a016b922 LP |
339 | if (r < 0) |
340 | return r; | |
341 | ||
4c9ea260 LP |
342 | r = swap_add_default_dependencies(s); |
343 | if (r < 0) | |
344 | return r; | |
07b0b134 ML |
345 | } |
346 | ||
347 | return swap_verify(s); | |
348 | } | |
349 | ||
628c89cc | 350 | static int swap_setup_unit( |
4e85aff4 LP |
351 | Manager *m, |
352 | const char *what, | |
e04aad61 | 353 | const char *what_proc_swaps, |
4e85aff4 | 354 | int priority, |
e04aad61 LP |
355 | bool set_flags) { |
356 | ||
7fd1b19b | 357 | _cleanup_free_ char *e = NULL; |
2c7c6144 | 358 | bool delete = false; |
5bcb0f2b | 359 | Unit *u = NULL; |
07b0b134 | 360 | int r; |
4e85aff4 LP |
361 | SwapParameters *p; |
362 | ||
363 | assert(m); | |
364 | assert(what); | |
6b1dc2bd | 365 | assert(what_proc_swaps); |
07b0b134 | 366 | |
7410616c LP |
367 | r = unit_name_from_path(what, ".swap", &e); |
368 | if (r < 0) | |
f2341e0a | 369 | return log_unit_error_errno(u, r, "Failed to generate unit name from path: %m"); |
07b0b134 | 370 | |
e04aad61 LP |
371 | u = manager_get_unit(m, e); |
372 | ||
6b1dc2bd | 373 | if (u && |
e04aad61 | 374 | SWAP(u)->from_proc_swaps && |
628c89cc LP |
375 | !path_equal(SWAP(u)->parameters_proc_swaps.what, what_proc_swaps)) { |
376 | log_error("Swap %s appeared twice with different device paths %s and %s", e, SWAP(u)->parameters_proc_swaps.what, what_proc_swaps); | |
e04aad61 | 377 | return -EEXIST; |
628c89cc | 378 | } |
4e85aff4 LP |
379 | |
380 | if (!u) { | |
07b0b134 ML |
381 | delete = true; |
382 | ||
a581e45a | 383 | r = unit_new_for_name(m, sizeof(Swap), e, &u); |
7d17cfbc | 384 | if (r < 0) |
e04aad61 LP |
385 | goto fail; |
386 | ||
7d17cfbc MS |
387 | SWAP(u)->what = strdup(what); |
388 | if (!SWAP(u)->what) { | |
628c89cc | 389 | r = -ENOMEM; |
e04aad61 LP |
390 | goto fail; |
391 | } | |
392 | ||
393 | unit_add_to_load_queue(u); | |
4e85aff4 LP |
394 | } else |
395 | delete = false; | |
07b0b134 | 396 | |
6b1dc2bd | 397 | p = &SWAP(u)->parameters_proc_swaps; |
07b0b134 | 398 | |
6b1dc2bd | 399 | if (!p->what) { |
5bcb0f2b LP |
400 | p->what = strdup(what_proc_swaps); |
401 | if (!p->what) { | |
402 | r = -ENOMEM; | |
6b1dc2bd LP |
403 | goto fail; |
404 | } | |
6b1dc2bd | 405 | } |
e04aad61 | 406 | |
6b1dc2bd LP |
407 | if (set_flags) { |
408 | SWAP(u)->is_active = true; | |
409 | SWAP(u)->just_activated = !SWAP(u)->from_proc_swaps; | |
4e85aff4 | 410 | } |
07b0b134 | 411 | |
6b1dc2bd LP |
412 | SWAP(u)->from_proc_swaps = true; |
413 | ||
4e85aff4 | 414 | p->priority = priority; |
07b0b134 | 415 | |
4e85aff4 | 416 | unit_add_to_dbus_queue(u); |
07b0b134 ML |
417 | return 0; |
418 | ||
419 | fail: | |
f2341e0a | 420 | log_unit_warning_errno(u, r, "Failed to load swap unit: %m"); |
e04aad61 | 421 | |
c9d5c9c0 | 422 | if (delete) |
07b0b134 ML |
423 | unit_free(u); |
424 | ||
4e85aff4 | 425 | return r; |
07b0b134 ML |
426 | } |
427 | ||
628c89cc | 428 | static int swap_process_new(Manager *m, const char *device, int prio, bool set_flags) { |
8e766630 | 429 | _cleanup_(udev_device_unrefp) struct udev_device *d = NULL; |
5bcb0f2b LP |
430 | struct udev_list_entry *item = NULL, *first = NULL; |
431 | const char *dn; | |
e04aad61 | 432 | struct stat st; |
5bcb0f2b | 433 | int r; |
e04aad61 LP |
434 | |
435 | assert(m); | |
436 | ||
628c89cc | 437 | r = swap_setup_unit(m, device, device, prio, set_flags); |
5bcb0f2b LP |
438 | if (r < 0) |
439 | return r; | |
e04aad61 | 440 | |
5bcb0f2b LP |
441 | /* If this is a block device, then let's add duplicates for |
442 | * all other names of this block device */ | |
443 | if (stat(device, &st) < 0 || !S_ISBLK(st.st_mode)) | |
444 | return 0; | |
e04aad61 | 445 | |
5bcb0f2b LP |
446 | d = udev_device_new_from_devnum(m->udev, 'b', st.st_rdev); |
447 | if (!d) | |
448 | return 0; | |
e04aad61 | 449 | |
5bcb0f2b LP |
450 | /* Add the main device node */ |
451 | dn = udev_device_get_devnode(d); | |
452 | if (dn && !streq(dn, device)) | |
628c89cc | 453 | swap_setup_unit(m, dn, device, prio, set_flags); |
e04aad61 | 454 | |
5bcb0f2b LP |
455 | /* Add additional units for all symlinks */ |
456 | first = udev_device_get_devlinks_list_entry(d); | |
457 | udev_list_entry_foreach(item, first) { | |
458 | const char *p; | |
e04aad61 | 459 | |
5bcb0f2b LP |
460 | /* Don't bother with the /dev/block links */ |
461 | p = udev_list_entry_get_name(item); | |
e04aad61 | 462 | |
5bcb0f2b LP |
463 | if (streq(p, device)) |
464 | continue; | |
e04aad61 | 465 | |
5bcb0f2b LP |
466 | if (path_startswith(p, "/dev/block/")) |
467 | continue; | |
e04aad61 | 468 | |
5bcb0f2b LP |
469 | if (stat(p, &st) >= 0) |
470 | if (!S_ISBLK(st.st_mode) || | |
471 | st.st_rdev != udev_device_get_devnum(d)) | |
472 | continue; | |
e04aad61 | 473 | |
628c89cc | 474 | swap_setup_unit(m, p, device, prio, set_flags); |
e04aad61 LP |
475 | } |
476 | ||
e04aad61 LP |
477 | return r; |
478 | } | |
479 | ||
07b0b134 ML |
480 | static void swap_set_state(Swap *s, SwapState state) { |
481 | SwapState old_state; | |
37cf8fee | 482 | Swap *other; |
e04aad61 | 483 | |
07b0b134 ML |
484 | assert(s); |
485 | ||
486 | old_state = s->state; | |
487 | s->state = state; | |
488 | ||
dedf3719 | 489 | if (!SWAP_STATE_WITH_PROCESS(state)) { |
718db961 | 490 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
e04aad61 LP |
491 | swap_unwatch_control_pid(s); |
492 | s->control_command = NULL; | |
493 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; | |
494 | } | |
495 | ||
07b0b134 | 496 | if (state != old_state) |
f2341e0a | 497 | log_unit_debug(UNIT(s), "Changed %s -> %s", swap_state_to_string(old_state), swap_state_to_string(state)); |
07b0b134 | 498 | |
5bcb0f2b | 499 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true); |
37cf8fee LP |
500 | |
501 | /* If there other units for the same device node have a job | |
502 | queued it might be worth checking again if it is runnable | |
503 | now. This is necessary, since swap_start() refuses | |
504 | operation with EAGAIN if there's already another job for | |
505 | the same device node queued. */ | |
506 | LIST_FOREACH_OTHERS(same_devnode, other, s) | |
507 | if (UNIT(other)->job) | |
508 | job_add_to_run_queue(UNIT(other)->job); | |
07b0b134 ML |
509 | } |
510 | ||
be847e82 | 511 | static int swap_coldplug(Unit *u) { |
07b0b134 ML |
512 | Swap *s = SWAP(u); |
513 | SwapState new_state = SWAP_DEAD; | |
e04aad61 | 514 | int r; |
07b0b134 ML |
515 | |
516 | assert(s); | |
517 | assert(s->state == SWAP_DEAD); | |
518 | ||
519 | if (s->deserialized_state != s->state) | |
520 | new_state = s->deserialized_state; | |
4e85aff4 | 521 | else if (s->from_proc_swaps) |
07b0b134 ML |
522 | new_state = SWAP_ACTIVE; |
523 | ||
5bcb0f2b LP |
524 | if (new_state == s->state) |
525 | return 0; | |
e04aad61 | 526 | |
c386f588 LP |
527 | if (s->control_pid > 0 && |
528 | pid_is_unwaited(s->control_pid) && | |
dedf3719 | 529 | SWAP_STATE_WITH_PROCESS(new_state)) { |
e04aad61 | 530 | |
5bcb0f2b LP |
531 | r = unit_watch_pid(UNIT(s), s->control_pid); |
532 | if (r < 0) | |
533 | return r; | |
e04aad61 | 534 | |
36c16a7c | 535 | r = swap_arm_timer(s, usec_add(u->state_change_timestamp.monotonic, s->timeout_usec)); |
5bcb0f2b LP |
536 | if (r < 0) |
537 | return r; | |
e04aad61 | 538 | } |
07b0b134 | 539 | |
e8a565cb | 540 | if (!IN_SET(new_state, SWAP_DEAD, SWAP_FAILED)) { |
29206d46 | 541 | (void) unit_setup_dynamic_creds(u); |
e8a565cb YW |
542 | (void) unit_setup_exec_runtime(u); |
543 | } | |
29206d46 | 544 | |
5bcb0f2b | 545 | swap_set_state(s, new_state); |
07b0b134 ML |
546 | return 0; |
547 | } | |
548 | ||
549 | static void swap_dump(Unit *u, FILE *f, const char *prefix) { | |
f2e18ef1 | 550 | char buf[FORMAT_TIMESPAN_MAX]; |
07b0b134 | 551 | Swap *s = SWAP(u); |
4e85aff4 | 552 | SwapParameters *p; |
07b0b134 ML |
553 | |
554 | assert(s); | |
4e85aff4 LP |
555 | assert(f); |
556 | ||
557 | if (s->from_proc_swaps) | |
558 | p = &s->parameters_proc_swaps; | |
559 | else if (s->from_fragment) | |
560 | p = &s->parameters_fragment; | |
b6bfc7bb LP |
561 | else |
562 | p = NULL; | |
07b0b134 ML |
563 | |
564 | fprintf(f, | |
4e85aff4 | 565 | "%sSwap State: %s\n" |
e1770af8 | 566 | "%sResult: %s\n" |
07b0b134 | 567 | "%sWhat: %s\n" |
4e85aff4 LP |
568 | "%sFrom /proc/swaps: %s\n" |
569 | "%sFrom fragment: %s\n", | |
07b0b134 | 570 | prefix, swap_state_to_string(s->state), |
e1770af8 | 571 | prefix, swap_result_to_string(s->result), |
07b0b134 | 572 | prefix, s->what, |
4e85aff4 LP |
573 | prefix, yes_no(s->from_proc_swaps), |
574 | prefix, yes_no(s->from_fragment)); | |
e04aad61 | 575 | |
9670d583 LP |
576 | if (s->devnode) |
577 | fprintf(f, "%sDevice Node: %s\n", prefix, s->devnode); | |
578 | ||
b6bfc7bb LP |
579 | if (p) |
580 | fprintf(f, | |
581 | "%sPriority: %i\n" | |
47cb901e | 582 | "%sOptions: %s\n", |
b6bfc7bb | 583 | prefix, p->priority, |
47cb901e | 584 | prefix, strempty(p->options)); |
b6bfc7bb | 585 | |
9bd0e1b8 YW |
586 | fprintf(f, |
587 | "%sTimeoutSec: %s\n", | |
588 | prefix, format_timespan(buf, sizeof(buf), s->timeout_usec, USEC_PER_SEC)); | |
589 | ||
e04aad61 LP |
590 | if (s->control_pid > 0) |
591 | fprintf(f, | |
de0671ee ZJS |
592 | "%sControl PID: "PID_FMT"\n", |
593 | prefix, s->control_pid); | |
e04aad61 LP |
594 | |
595 | exec_context_dump(&s->exec_context, f, prefix); | |
4819ff03 | 596 | kill_context_dump(&s->kill_context, f, prefix); |
18f573aa | 597 | cgroup_context_dump(&s->cgroup_context, f, prefix); |
e04aad61 LP |
598 | } |
599 | ||
600 | static int swap_spawn(Swap *s, ExecCommand *c, pid_t *_pid) { | |
3c7416b6 | 601 | |
9fa95f85 | 602 | ExecParameters exec_params = { |
1703fa41 | 603 | .flags = EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN, |
c39f1ce2 LP |
604 | .stdin_fd = -1, |
605 | .stdout_fd = -1, | |
606 | .stderr_fd = -1, | |
9fa95f85 | 607 | }; |
3c7416b6 LP |
608 | pid_t pid; |
609 | int r; | |
e04aad61 LP |
610 | |
611 | assert(s); | |
612 | assert(c); | |
613 | assert(_pid); | |
614 | ||
3c7416b6 | 615 | r = unit_prepare_exec(UNIT(s)); |
29206d46 | 616 | if (r < 0) |
3c7416b6 | 617 | return r; |
29206d46 | 618 | |
36c16a7c | 619 | r = swap_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_usec)); |
646134dc | 620 | if (r < 0) |
e04aad61 LP |
621 | goto fail; |
622 | ||
f0d47797 | 623 | unit_set_exec_params(UNIT(s), &exec_params); |
9fa95f85 | 624 | |
f2341e0a LP |
625 | r = exec_spawn(UNIT(s), |
626 | c, | |
646134dc | 627 | &s->exec_context, |
9fa95f85 | 628 | &exec_params, |
613b411c | 629 | s->exec_runtime, |
29206d46 | 630 | &s->dynamic_creds, |
646134dc ZJS |
631 | &pid); |
632 | if (r < 0) | |
e04aad61 LP |
633 | goto fail; |
634 | ||
646134dc ZJS |
635 | r = unit_watch_pid(UNIT(s), pid); |
636 | if (r < 0) | |
e04aad61 LP |
637 | /* FIXME: we need to do something here */ |
638 | goto fail; | |
639 | ||
640 | *_pid = pid; | |
641 | ||
642 | return 0; | |
643 | ||
644 | fail: | |
718db961 | 645 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
3536f49e | 646 | |
e04aad61 | 647 | return r; |
07b0b134 ML |
648 | } |
649 | ||
e1770af8 | 650 | static void swap_enter_dead(Swap *s, SwapResult f) { |
07b0b134 ML |
651 | assert(s); |
652 | ||
a0fef983 | 653 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 654 | s->result = f; |
e04aad61 | 655 | |
ed77d407 LP |
656 | if (s->result != SWAP_SUCCESS) |
657 | log_unit_warning(UNIT(s), "Failed with result '%s'.", swap_result_to_string(s->result)); | |
658 | ||
29206d46 LP |
659 | swap_set_state(s, s->result != SWAP_SUCCESS ? SWAP_FAILED : SWAP_DEAD); |
660 | ||
e8a565cb | 661 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, true); |
613b411c | 662 | |
3536f49e | 663 | exec_context_destroy_runtime_directory(&s->exec_context, UNIT(s)->manager->prefix[EXEC_DIRECTORY_RUNTIME]); |
e66cf1a3 | 664 | |
00d9ef85 LP |
665 | unit_unref_uid_gid(UNIT(s), true); |
666 | ||
29206d46 | 667 | dynamic_creds_destroy(&s->dynamic_creds); |
07b0b134 ML |
668 | } |
669 | ||
e1770af8 | 670 | static void swap_enter_active(Swap *s, SwapResult f) { |
e04aad61 LP |
671 | assert(s); |
672 | ||
a0fef983 | 673 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 674 | s->result = f; |
e04aad61 LP |
675 | |
676 | swap_set_state(s, SWAP_ACTIVE); | |
677 | } | |
678 | ||
50864457 LP |
679 | static void swap_enter_dead_or_active(Swap *s, SwapResult f) { |
680 | assert(s); | |
681 | ||
682 | if (s->from_proc_swaps) | |
683 | swap_enter_active(s, f); | |
684 | else | |
685 | swap_enter_dead(s, f); | |
686 | } | |
687 | ||
e1770af8 | 688 | static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) { |
07b0b134 | 689 | int r; |
d31ae548 | 690 | KillOperation kop; |
07b0b134 ML |
691 | |
692 | assert(s); | |
e04aad61 | 693 | |
a0fef983 | 694 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 695 | s->result = f; |
e04aad61 | 696 | |
50864457 | 697 | if (state == SWAP_DEACTIVATING_SIGTERM) |
d31ae548 FB |
698 | kop = KILL_TERMINATE; |
699 | else | |
700 | kop = KILL_KILL; | |
701 | ||
702 | r = unit_kill_context(UNIT(s), &s->kill_context, kop, -1, s->control_pid, false); | |
cd2086fe LP |
703 | if (r < 0) |
704 | goto fail; | |
e04aad61 | 705 | |
cd2086fe | 706 | if (r > 0) { |
36c16a7c | 707 | r = swap_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_usec)); |
646134dc | 708 | if (r < 0) |
e04aad61 LP |
709 | goto fail; |
710 | ||
711 | swap_set_state(s, state); | |
50864457 | 712 | } else if (state == SWAP_DEACTIVATING_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb LP |
713 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_SUCCESS); |
714 | else | |
50864457 | 715 | swap_enter_dead_or_active(s, SWAP_SUCCESS); |
e04aad61 LP |
716 | |
717 | return; | |
718 | ||
719 | fail: | |
f2341e0a | 720 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
50864457 | 721 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
722 | } |
723 | ||
724 | static void swap_enter_activating(Swap *s) { | |
bf1d7ba7 KZ |
725 | _cleanup_free_ char *opts = NULL; |
726 | int r; | |
e04aad61 LP |
727 | |
728 | assert(s); | |
729 | ||
a4634b21 LP |
730 | unit_warn_leftover_processes(UNIT(s)); |
731 | ||
e04aad61 LP |
732 | s->control_command_id = SWAP_EXEC_ACTIVATE; |
733 | s->control_command = s->exec_command + SWAP_EXEC_ACTIVATE; | |
07b0b134 | 734 | |
86b23b07 | 735 | if (s->from_fragment) { |
bf1d7ba7 | 736 | int priority = -1; |
47cb901e | 737 | |
bf1d7ba7 KZ |
738 | r = fstab_find_pri(s->parameters_fragment.options, &priority); |
739 | if (r < 0) | |
740 | log_warning_errno(r, "Failed to parse swap priority \"%s\", ignoring: %m", s->parameters_fragment.options); | |
741 | else if (r == 1 && s->parameters_fragment.priority >= 0) | |
742 | log_warning("Duplicate swap priority configuration by Priority and Options fields."); | |
743 | ||
744 | if (r <= 0 && s->parameters_fragment.priority >= 0) { | |
745 | if (s->parameters_fragment.options) | |
746 | r = asprintf(&opts, "%s,pri=%i", s->parameters_fragment.options, s->parameters_fragment.priority); | |
747 | else | |
748 | r = asprintf(&opts, "pri=%i", s->parameters_fragment.priority); | |
e64d5235 | 749 | if (r < 0) |
bf1d7ba7 | 750 | goto fail; |
e64d5235 | 751 | } |
86b23b07 JS |
752 | } |
753 | ||
754 | r = exec_command_set(s->control_command, "/sbin/swapon", NULL); | |
755 | if (r < 0) | |
756 | goto fail; | |
4e85aff4 | 757 | |
bf1d7ba7 KZ |
758 | if (s->parameters_fragment.options || opts) { |
759 | r = exec_command_append(s->control_command, "-o", | |
760 | opts ? : s->parameters_fragment.options, NULL); | |
86b23b07 JS |
761 | if (r < 0) |
762 | goto fail; | |
763 | } | |
e04aad61 | 764 | |
86b23b07 | 765 | r = exec_command_append(s->control_command, s->what, NULL); |
e04aad61 LP |
766 | if (r < 0) |
767 | goto fail; | |
768 | ||
769 | swap_unwatch_control_pid(s); | |
770 | ||
646134dc ZJS |
771 | r = swap_spawn(s, s->control_command, &s->control_pid); |
772 | if (r < 0) | |
e04aad61 LP |
773 | goto fail; |
774 | ||
775 | swap_set_state(s, SWAP_ACTIVATING); | |
776 | ||
777 | return; | |
778 | ||
779 | fail: | |
f2341e0a | 780 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapon' task: %m"); |
50864457 | 781 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
782 | } |
783 | ||
e1770af8 | 784 | static void swap_enter_deactivating(Swap *s) { |
e04aad61 LP |
785 | int r; |
786 | ||
787 | assert(s); | |
788 | ||
e04aad61 LP |
789 | s->control_command_id = SWAP_EXEC_DEACTIVATE; |
790 | s->control_command = s->exec_command + SWAP_EXEC_DEACTIVATE; | |
791 | ||
646134dc | 792 | r = exec_command_set(s->control_command, |
e04aad61 LP |
793 | "/sbin/swapoff", |
794 | s->what, | |
646134dc ZJS |
795 | NULL); |
796 | if (r < 0) | |
e04aad61 LP |
797 | goto fail; |
798 | ||
799 | swap_unwatch_control_pid(s); | |
800 | ||
646134dc ZJS |
801 | r = swap_spawn(s, s->control_command, &s->control_pid); |
802 | if (r < 0) | |
e04aad61 LP |
803 | goto fail; |
804 | ||
805 | swap_set_state(s, SWAP_DEACTIVATING); | |
806 | ||
807 | return; | |
808 | ||
809 | fail: | |
f2341e0a | 810 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapoff' task: %m"); |
50864457 | 811 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
812 | } |
813 | ||
814 | static int swap_start(Unit *u) { | |
37cf8fee | 815 | Swap *s = SWAP(u), *other; |
07299350 | 816 | int r; |
e04aad61 LP |
817 | |
818 | assert(s); | |
819 | ||
50864457 | 820 | /* We cannot fulfill this request right now, try again later please! */ |
d31ae548 FB |
821 | if (IN_SET(s->state, |
822 | SWAP_DEACTIVATING, | |
823 | SWAP_DEACTIVATING_SIGTERM, | |
50864457 | 824 | SWAP_DEACTIVATING_SIGKILL)) |
e04aad61 LP |
825 | return -EAGAIN; |
826 | ||
50864457 | 827 | /* Already on it! */ |
e04aad61 LP |
828 | if (s->state == SWAP_ACTIVATING) |
829 | return 0; | |
830 | ||
d31ae548 | 831 | assert(IN_SET(s->state, SWAP_DEAD, SWAP_FAILED)); |
e04aad61 | 832 | |
75f86906 | 833 | if (detect_container() > 0) |
a5c3034f LP |
834 | return -EPERM; |
835 | ||
37cf8fee LP |
836 | /* If there's a job for another swap unit for the same node |
837 | * running, then let's not dispatch this one for now, and wait | |
838 | * until that other job has finished. */ | |
839 | LIST_FOREACH_OTHERS(same_devnode, other, s) | |
840 | if (UNIT(other)->job && UNIT(other)->job->state == JOB_RUNNING) | |
841 | return -EAGAIN; | |
842 | ||
07299350 LP |
843 | r = unit_start_limit_test(u); |
844 | if (r < 0) { | |
845 | swap_enter_dead(s, SWAP_FAILURE_START_LIMIT_HIT); | |
846 | return r; | |
847 | } | |
848 | ||
4b58153d LP |
849 | r = unit_acquire_invocation_id(u); |
850 | if (r < 0) | |
851 | return r; | |
852 | ||
e1770af8 | 853 | s->result = SWAP_SUCCESS; |
3c7416b6 LP |
854 | |
855 | u->reset_accounting = true; | |
5ad096b3 | 856 | |
e04aad61 | 857 | swap_enter_activating(s); |
82a2b6bb | 858 | return 1; |
07b0b134 ML |
859 | } |
860 | ||
861 | static int swap_stop(Unit *u) { | |
862 | Swap *s = SWAP(u); | |
07b0b134 ML |
863 | |
864 | assert(s); | |
865 | ||
50864457 LP |
866 | switch (s->state) { |
867 | ||
868 | case SWAP_DEACTIVATING: | |
869 | case SWAP_DEACTIVATING_SIGTERM: | |
870 | case SWAP_DEACTIVATING_SIGKILL: | |
871 | /* Already on it */ | |
e04aad61 | 872 | return 0; |
07b0b134 | 873 | |
50864457 LP |
874 | case SWAP_ACTIVATING: |
875 | case SWAP_ACTIVATING_DONE: | |
876 | /* There's a control process pending, directly enter kill mode */ | |
877 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_SUCCESS); | |
878 | return 0; | |
07b0b134 | 879 | |
50864457 LP |
880 | case SWAP_ACTIVE: |
881 | if (detect_container() > 0) | |
882 | return -EPERM; | |
a5c3034f | 883 | |
50864457 LP |
884 | swap_enter_deactivating(s); |
885 | return 1; | |
886 | ||
887 | default: | |
888 | assert_not_reached("Unexpected state."); | |
889 | } | |
07b0b134 ML |
890 | } |
891 | ||
892 | static int swap_serialize(Unit *u, FILE *f, FDSet *fds) { | |
893 | Swap *s = SWAP(u); | |
894 | ||
895 | assert(s); | |
896 | assert(f); | |
897 | assert(fds); | |
898 | ||
899 | unit_serialize_item(u, f, "state", swap_state_to_string(s->state)); | |
e1770af8 | 900 | unit_serialize_item(u, f, "result", swap_result_to_string(s->result)); |
e04aad61 LP |
901 | |
902 | if (s->control_pid > 0) | |
de0671ee | 903 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
e04aad61 LP |
904 | |
905 | if (s->control_command_id >= 0) | |
906 | unit_serialize_item(u, f, "control-command", swap_exec_command_to_string(s->control_command_id)); | |
07b0b134 ML |
907 | |
908 | return 0; | |
909 | } | |
910 | ||
911 | static int swap_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
912 | Swap *s = SWAP(u); | |
913 | ||
914 | assert(s); | |
915 | assert(fds); | |
916 | ||
917 | if (streq(key, "state")) { | |
918 | SwapState state; | |
919 | ||
646134dc ZJS |
920 | state = swap_state_from_string(value); |
921 | if (state < 0) | |
f2341e0a | 922 | log_unit_debug(u, "Failed to parse state value: %s", value); |
07b0b134 ML |
923 | else |
924 | s->deserialized_state = state; | |
e1770af8 LP |
925 | } else if (streq(key, "result")) { |
926 | SwapResult f; | |
927 | ||
928 | f = swap_result_from_string(value); | |
929 | if (f < 0) | |
f2341e0a | 930 | log_unit_debug(u, "Failed to parse result value: %s", value); |
e1770af8 LP |
931 | else if (f != SWAP_SUCCESS) |
932 | s->result = f; | |
e04aad61 LP |
933 | } else if (streq(key, "control-pid")) { |
934 | pid_t pid; | |
935 | ||
936 | if (parse_pid(value, &pid) < 0) | |
f2341e0a | 937 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
e04aad61 LP |
938 | else |
939 | s->control_pid = pid; | |
940 | ||
941 | } else if (streq(key, "control-command")) { | |
942 | SwapExecCommand id; | |
943 | ||
646134dc ZJS |
944 | id = swap_exec_command_from_string(value); |
945 | if (id < 0) | |
f2341e0a | 946 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
e04aad61 LP |
947 | else { |
948 | s->control_command_id = id; | |
949 | s->control_command = s->exec_command + id; | |
950 | } | |
07b0b134 | 951 | } else |
f2341e0a | 952 | log_unit_debug(u, "Unknown serialization key: %s", key); |
07b0b134 ML |
953 | |
954 | return 0; | |
955 | } | |
956 | ||
44a6b1b6 | 957 | _pure_ static UnitActiveState swap_active_state(Unit *u) { |
07b0b134 ML |
958 | assert(u); |
959 | ||
960 | return state_translation_table[SWAP(u)->state]; | |
961 | } | |
962 | ||
44a6b1b6 | 963 | _pure_ static const char *swap_sub_state_to_string(Unit *u) { |
07b0b134 ML |
964 | assert(u); |
965 | ||
966 | return swap_state_to_string(SWAP(u)->state); | |
967 | } | |
968 | ||
f2f725e5 | 969 | _pure_ static bool swap_may_gc(Unit *u) { |
07b0b134 ML |
970 | Swap *s = SWAP(u); |
971 | ||
972 | assert(s); | |
973 | ||
f2f725e5 ZJS |
974 | if (s->from_proc_swaps) |
975 | return false; | |
976 | ||
977 | return true; | |
07b0b134 ML |
978 | } |
979 | ||
e04aad61 LP |
980 | static void swap_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
981 | Swap *s = SWAP(u); | |
e1770af8 | 982 | SwapResult f; |
e04aad61 LP |
983 | |
984 | assert(s); | |
985 | assert(pid >= 0); | |
986 | ||
987 | if (pid != s->control_pid) | |
988 | return; | |
989 | ||
990 | s->control_pid = 0; | |
991 | ||
1f0958f6 | 992 | if (is_clean_exit(code, status, EXIT_CLEAN_COMMAND, NULL)) |
e1770af8 LP |
993 | f = SWAP_SUCCESS; |
994 | else if (code == CLD_EXITED) | |
995 | f = SWAP_FAILURE_EXIT_CODE; | |
996 | else if (code == CLD_KILLED) | |
997 | f = SWAP_FAILURE_SIGNAL; | |
998 | else if (code == CLD_DUMPED) | |
999 | f = SWAP_FAILURE_CORE_DUMP; | |
1000 | else | |
1001 | assert_not_reached("Unknown code"); | |
1002 | ||
a0fef983 | 1003 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 1004 | s->result = f; |
e04aad61 LP |
1005 | |
1006 | if (s->control_command) { | |
6ea832a2 | 1007 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
e1770af8 | 1008 | |
e04aad61 LP |
1009 | s->control_command = NULL; |
1010 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; | |
1011 | } | |
1012 | ||
f2341e0a LP |
1013 | log_unit_full(u, f == SWAP_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
1014 | "Swap process exited, code=%s status=%i", sigchld_code_to_string(code), status); | |
e04aad61 LP |
1015 | |
1016 | switch (s->state) { | |
1017 | ||
1018 | case SWAP_ACTIVATING: | |
5bcb0f2b | 1019 | case SWAP_ACTIVATING_DONE: |
e04aad61 | 1020 | |
50864457 | 1021 | if (f == SWAP_SUCCESS || s->from_proc_swaps) |
e1770af8 | 1022 | swap_enter_active(s, f); |
e04aad61 | 1023 | else |
e1770af8 | 1024 | swap_enter_dead(s, f); |
e04aad61 LP |
1025 | break; |
1026 | ||
1027 | case SWAP_DEACTIVATING: | |
1028 | case SWAP_DEACTIVATING_SIGKILL: | |
1029 | case SWAP_DEACTIVATING_SIGTERM: | |
1030 | ||
50864457 | 1031 | swap_enter_dead_or_active(s, f); |
e04aad61 LP |
1032 | break; |
1033 | ||
1034 | default: | |
1035 | assert_not_reached("Uh, control process died at wrong time."); | |
1036 | } | |
1037 | ||
1038 | /* Notify clients about changed exit status */ | |
1039 | unit_add_to_dbus_queue(u); | |
e04aad61 LP |
1040 | } |
1041 | ||
718db961 LP |
1042 | static int swap_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
1043 | Swap *s = SWAP(userdata); | |
e04aad61 LP |
1044 | |
1045 | assert(s); | |
718db961 | 1046 | assert(s->timer_event_source == source); |
e04aad61 LP |
1047 | |
1048 | switch (s->state) { | |
1049 | ||
1050 | case SWAP_ACTIVATING: | |
5bcb0f2b | 1051 | case SWAP_ACTIVATING_DONE: |
f2341e0a | 1052 | log_unit_warning(UNIT(s), "Activation timed out. Stopping."); |
50864457 | 1053 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1054 | break; |
1055 | ||
1056 | case SWAP_DEACTIVATING: | |
f2341e0a | 1057 | log_unit_warning(UNIT(s), "Deactivation timed out. Stopping."); |
e1770af8 | 1058 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1059 | break; |
1060 | ||
e04aad61 | 1061 | case SWAP_DEACTIVATING_SIGTERM: |
4819ff03 | 1062 | if (s->kill_context.send_sigkill) { |
50864457 | 1063 | log_unit_warning(UNIT(s), "Swap process timed out. Killing."); |
e1770af8 | 1064 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_FAILURE_TIMEOUT); |
ba035df2 | 1065 | } else { |
50864457 LP |
1066 | log_unit_warning(UNIT(s), "Swap process timed out. Skipping SIGKILL. Ignoring."); |
1067 | swap_enter_dead_or_active(s, SWAP_FAILURE_TIMEOUT); | |
ba035df2 | 1068 | } |
e04aad61 LP |
1069 | break; |
1070 | ||
e04aad61 | 1071 | case SWAP_DEACTIVATING_SIGKILL: |
f2341e0a | 1072 | log_unit_warning(UNIT(s), "Swap process still around after SIGKILL. Ignoring."); |
50864457 | 1073 | swap_enter_dead_or_active(s, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1074 | break; |
1075 | ||
1076 | default: | |
1077 | assert_not_reached("Timeout at wrong time."); | |
1078 | } | |
718db961 LP |
1079 | |
1080 | return 0; | |
e04aad61 LP |
1081 | } |
1082 | ||
1083 | static int swap_load_proc_swaps(Manager *m, bool set_flags) { | |
1084 | unsigned i; | |
1085 | int r = 0; | |
1086 | ||
1087 | assert(m); | |
1088 | ||
07b0b134 | 1089 | rewind(m->proc_swaps); |
bab45044 | 1090 | |
4e85aff4 | 1091 | (void) fscanf(m->proc_swaps, "%*s %*s %*s %*s %*s\n"); |
07b0b134 | 1092 | |
e04aad61 | 1093 | for (i = 1;; i++) { |
9fb3675e | 1094 | _cleanup_free_ char *dev = NULL, *d = NULL; |
07b0b134 ML |
1095 | int prio = 0, k; |
1096 | ||
646134dc ZJS |
1097 | k = fscanf(m->proc_swaps, |
1098 | "%ms " /* device/file */ | |
1099 | "%*s " /* type of swap */ | |
1100 | "%*s " /* swap size */ | |
1101 | "%*s " /* used */ | |
1102 | "%i\n", /* priority */ | |
1103 | &dev, &prio); | |
1104 | if (k != 2) { | |
07b0b134 | 1105 | if (k == EOF) |
4e85aff4 | 1106 | break; |
07b0b134 | 1107 | |
628c89cc | 1108 | log_warning("Failed to parse /proc/swaps:%u.", i); |
e04aad61 | 1109 | continue; |
07b0b134 | 1110 | } |
07b0b134 | 1111 | |
527b7a42 | 1112 | if (cunescape(dev, UNESCAPE_RELAX, &d) < 0) |
628c89cc LP |
1113 | return log_oom(); |
1114 | ||
1115 | device_found_node(m, d, true, DEVICE_FOUND_SWAP, set_flags); | |
4e85aff4 | 1116 | |
628c89cc | 1117 | k = swap_process_new(m, d, prio, set_flags); |
07b0b134 | 1118 | if (k < 0) |
e04aad61 | 1119 | r = k; |
07b0b134 ML |
1120 | } |
1121 | ||
e04aad61 LP |
1122 | return r; |
1123 | } | |
1124 | ||
718db961 LP |
1125 | static int swap_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1126 | Manager *m = userdata; | |
595ed347 | 1127 | Unit *u; |
4e434314 LP |
1128 | int r; |
1129 | ||
1130 | assert(m); | |
718db961 | 1131 | assert(revents & EPOLLPRI); |
4e434314 | 1132 | |
646134dc ZJS |
1133 | r = swap_load_proc_swaps(m, true); |
1134 | if (r < 0) { | |
da927ba9 | 1135 | log_error_errno(r, "Failed to reread /proc/swaps: %m"); |
e04aad61 LP |
1136 | |
1137 | /* Reset flags, just in case, for late calls */ | |
595ed347 MS |
1138 | LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_SWAP]) { |
1139 | Swap *swap = SWAP(u); | |
e04aad61 LP |
1140 | |
1141 | swap->is_active = swap->just_activated = false; | |
1142 | } | |
1143 | ||
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | manager_dispatch_load_queue(m); | |
1148 | ||
595ed347 MS |
1149 | LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_SWAP]) { |
1150 | Swap *swap = SWAP(u); | |
e04aad61 LP |
1151 | |
1152 | if (!swap->is_active) { | |
1153 | /* This has just been deactivated */ | |
1154 | ||
e04aad61 LP |
1155 | swap_unset_proc_swaps(swap); |
1156 | ||
1157 | switch (swap->state) { | |
1158 | ||
1159 | case SWAP_ACTIVE: | |
e1770af8 | 1160 | swap_enter_dead(swap, SWAP_SUCCESS); |
e04aad61 LP |
1161 | break; |
1162 | ||
1163 | default: | |
5bcb0f2b | 1164 | /* Fire again */ |
e04aad61 LP |
1165 | swap_set_state(swap, swap->state); |
1166 | break; | |
1167 | } | |
1168 | ||
628c89cc LP |
1169 | if (swap->what) |
1170 | device_found_node(m, swap->what, false, DEVICE_FOUND_SWAP, true); | |
1171 | ||
e04aad61 LP |
1172 | } else if (swap->just_activated) { |
1173 | ||
1174 | /* New swap entry */ | |
1175 | ||
1176 | switch (swap->state) { | |
1177 | ||
1178 | case SWAP_DEAD: | |
1179 | case SWAP_FAILED: | |
4b58153d | 1180 | (void) unit_acquire_invocation_id(UNIT(swap)); |
e1770af8 | 1181 | swap_enter_active(swap, SWAP_SUCCESS); |
e04aad61 LP |
1182 | break; |
1183 | ||
5bcb0f2b LP |
1184 | case SWAP_ACTIVATING: |
1185 | swap_set_state(swap, SWAP_ACTIVATING_DONE); | |
1186 | break; | |
1187 | ||
e04aad61 LP |
1188 | default: |
1189 | /* Nothing really changed, but let's | |
1190 | * issue an notification call | |
1191 | * nonetheless, in case somebody is | |
1192 | * waiting for this. */ | |
1193 | swap_set_state(swap, swap->state); | |
1194 | break; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | /* Reset the flags for later calls */ | |
1199 | swap->is_active = swap->just_activated = false; | |
1200 | } | |
1201 | ||
1202 | return 1; | |
1203 | } | |
1204 | ||
1205 | static Unit *swap_following(Unit *u) { | |
1206 | Swap *s = SWAP(u); | |
1207 | Swap *other, *first = NULL; | |
1208 | ||
1209 | assert(s); | |
1210 | ||
cdc89820 ZJS |
1211 | /* If the user configured the swap through /etc/fstab or |
1212 | * a device unit, follow that. */ | |
1213 | ||
1214 | if (s->from_fragment) | |
e04aad61 LP |
1215 | return NULL; |
1216 | ||
caac2704 | 1217 | LIST_FOREACH_OTHERS(same_devnode, other, s) |
cdc89820 ZJS |
1218 | if (other->from_fragment) |
1219 | return UNIT(other); | |
1220 | ||
b938cb90 | 1221 | /* Otherwise, make everybody follow the unit that's named after |
cdc89820 ZJS |
1222 | * the swap device in the kernel */ |
1223 | ||
1224 | if (streq_ptr(s->what, s->devnode)) | |
1225 | return NULL; | |
e04aad61 | 1226 | |
9670d583 LP |
1227 | LIST_FOREACH_AFTER(same_devnode, other, s) |
1228 | if (streq_ptr(other->what, other->devnode)) | |
e04aad61 LP |
1229 | return UNIT(other); |
1230 | ||
9670d583 LP |
1231 | LIST_FOREACH_BEFORE(same_devnode, other, s) { |
1232 | if (streq_ptr(other->what, other->devnode)) | |
e04aad61 LP |
1233 | return UNIT(other); |
1234 | ||
1235 | first = other; | |
1236 | } | |
1237 | ||
cdc89820 | 1238 | /* Fall back to the first on the list */ |
e04aad61 | 1239 | return UNIT(first); |
07b0b134 ML |
1240 | } |
1241 | ||
6210e7fc | 1242 | static int swap_following_set(Unit *u, Set **_set) { |
5bcb0f2b | 1243 | Swap *s = SWAP(u), *other; |
af4fa99d | 1244 | _cleanup_set_free_ Set *set = NULL; |
6210e7fc LP |
1245 | int r; |
1246 | ||
1247 | assert(s); | |
1248 | assert(_set); | |
1249 | ||
9670d583 | 1250 | if (LIST_JUST_US(same_devnode, s)) { |
6210e7fc LP |
1251 | *_set = NULL; |
1252 | return 0; | |
1253 | } | |
1254 | ||
d5099efc | 1255 | set = set_new(NULL); |
5bcb0f2b | 1256 | if (!set) |
6210e7fc LP |
1257 | return -ENOMEM; |
1258 | ||
caac2704 | 1259 | LIST_FOREACH_OTHERS(same_devnode, other, s) { |
5bcb0f2b LP |
1260 | r = set_put(set, other); |
1261 | if (r < 0) | |
95f14a3e | 1262 | return r; |
5bcb0f2b | 1263 | } |
6210e7fc | 1264 | |
95f14a3e | 1265 | *_set = TAKE_PTR(set); |
6210e7fc | 1266 | return 1; |
6210e7fc LP |
1267 | } |
1268 | ||
07b0b134 ML |
1269 | static void swap_shutdown(Manager *m) { |
1270 | assert(m); | |
1271 | ||
718db961 LP |
1272 | m->swap_event_source = sd_event_source_unref(m->swap_event_source); |
1273 | ||
74ca738f | 1274 | m->proc_swaps = safe_fclose(m->proc_swaps); |
e04aad61 | 1275 | |
525d3cc7 | 1276 | m->swaps_by_devnode = hashmap_free(m->swaps_by_devnode); |
07b0b134 ML |
1277 | } |
1278 | ||
ba64af90 | 1279 | static void swap_enumerate(Manager *m) { |
07b0b134 | 1280 | int r; |
9670d583 | 1281 | |
07b0b134 ML |
1282 | assert(m); |
1283 | ||
4e434314 | 1284 | if (!m->proc_swaps) { |
646134dc | 1285 | m->proc_swaps = fopen("/proc/swaps", "re"); |
ba64af90 LP |
1286 | if (!m->proc_swaps) { |
1287 | if (errno == ENOENT) | |
1288 | log_debug("Not swap enabled, skipping enumeration"); | |
1289 | else | |
1290 | log_error_errno(errno, "Failed to open /proc/swaps: %m"); | |
1291 | ||
1292 | return; | |
1293 | } | |
4e434314 | 1294 | |
151b9b96 | 1295 | r = sd_event_add_io(m->event, &m->swap_event_source, fileno(m->proc_swaps), EPOLLPRI, swap_dispatch_io, m); |
ba64af90 LP |
1296 | if (r < 0) { |
1297 | log_error_errno(r, "Failed to watch /proc/swaps: %m"); | |
29083707 | 1298 | goto fail; |
ba64af90 | 1299 | } |
29083707 LP |
1300 | |
1301 | /* Dispatch this before we dispatch SIGCHLD, so that | |
1302 | * we always get the events from /proc/swaps before | |
1303 | * the SIGCHLD of /sbin/swapon. */ | |
83231637 | 1304 | r = sd_event_source_set_priority(m->swap_event_source, SD_EVENT_PRIORITY_NORMAL-10); |
ba64af90 LP |
1305 | if (r < 0) { |
1306 | log_error_errno(r, "Failed to change /proc/swaps priority: %m"); | |
718db961 | 1307 | goto fail; |
ba64af90 | 1308 | } |
7dfbe2e3 TG |
1309 | |
1310 | (void) sd_event_source_set_description(m->swap_event_source, "swap-proc"); | |
4e434314 LP |
1311 | } |
1312 | ||
646134dc ZJS |
1313 | r = swap_load_proc_swaps(m, false); |
1314 | if (r < 0) | |
718db961 LP |
1315 | goto fail; |
1316 | ||
ba64af90 | 1317 | return; |
07b0b134 | 1318 | |
718db961 LP |
1319 | fail: |
1320 | swap_shutdown(m); | |
07b0b134 ML |
1321 | } |
1322 | ||
628c89cc | 1323 | int swap_process_device_new(Manager *m, struct udev_device *dev) { |
9670d583 LP |
1324 | struct udev_list_entry *item = NULL, *first = NULL; |
1325 | _cleanup_free_ char *e = NULL; | |
1326 | const char *dn; | |
cabf58b2 | 1327 | Unit *u; |
9670d583 LP |
1328 | int r = 0; |
1329 | ||
1330 | assert(m); | |
1331 | assert(dev); | |
1332 | ||
1333 | dn = udev_device_get_devnode(dev); | |
1334 | if (!dn) | |
1335 | return 0; | |
1336 | ||
7410616c LP |
1337 | r = unit_name_from_path(dn, ".swap", &e); |
1338 | if (r < 0) | |
1339 | return r; | |
9670d583 | 1340 | |
cabf58b2 FB |
1341 | u = manager_get_unit(m, e); |
1342 | if (u) | |
1343 | r = swap_set_devnode(SWAP(u), dn); | |
9670d583 LP |
1344 | |
1345 | first = udev_device_get_devlinks_list_entry(dev); | |
1346 | udev_list_entry_foreach(item, first) { | |
1347 | _cleanup_free_ char *n = NULL; | |
7410616c | 1348 | int q; |
9670d583 | 1349 | |
7410616c LP |
1350 | q = unit_name_from_path(udev_list_entry_get_name(item), ".swap", &n); |
1351 | if (q < 0) | |
1352 | return q; | |
9670d583 | 1353 | |
cabf58b2 FB |
1354 | u = manager_get_unit(m, n); |
1355 | if (u) { | |
1356 | q = swap_set_devnode(SWAP(u), dn); | |
9670d583 LP |
1357 | if (q < 0) |
1358 | r = q; | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | return r; | |
1363 | } | |
1364 | ||
628c89cc | 1365 | int swap_process_device_remove(Manager *m, struct udev_device *dev) { |
9670d583 LP |
1366 | const char *dn; |
1367 | int r = 0; | |
1368 | Swap *s; | |
1369 | ||
1370 | dn = udev_device_get_devnode(dev); | |
1371 | if (!dn) | |
1372 | return 0; | |
1373 | ||
1374 | while ((s = hashmap_get(m->swaps_by_devnode, dn))) { | |
1375 | int q; | |
1376 | ||
1377 | q = swap_set_devnode(s, NULL); | |
1378 | if (q < 0) | |
1379 | r = q; | |
1380 | } | |
1381 | ||
1382 | return r; | |
1383 | } | |
1384 | ||
fdf20a31 | 1385 | static void swap_reset_failed(Unit *u) { |
5632e374 LP |
1386 | Swap *s = SWAP(u); |
1387 | ||
1388 | assert(s); | |
1389 | ||
fdf20a31 | 1390 | if (s->state == SWAP_FAILED) |
5632e374 | 1391 | swap_set_state(s, SWAP_DEAD); |
e04aad61 | 1392 | |
e1770af8 | 1393 | s->result = SWAP_SUCCESS; |
5632e374 LP |
1394 | } |
1395 | ||
718db961 | 1396 | static int swap_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
814cc562 | 1397 | return unit_kill_common(u, who, signo, -1, SWAP(u)->control_pid, error); |
8a0867d6 LP |
1398 | } |
1399 | ||
7a7821c8 | 1400 | static int swap_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 1401 | Swap *s = SWAP(u); |
7a7821c8 | 1402 | usec_t t; |
68db7a3b ZJS |
1403 | int r; |
1404 | ||
1405 | if (!s->timer_event_source) | |
1406 | return 0; | |
1407 | ||
7a7821c8 | 1408 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
1409 | if (r < 0) |
1410 | return r; | |
7a7821c8 LP |
1411 | if (t == USEC_INFINITY) |
1412 | return 0; | |
68db7a3b | 1413 | |
7a7821c8 | 1414 | *timeout = t; |
68db7a3b ZJS |
1415 | return 1; |
1416 | } | |
1417 | ||
1c2e9646 | 1418 | static bool swap_supported(void) { |
0faacd47 LP |
1419 | static int supported = -1; |
1420 | ||
1421 | /* If swap support is not available in the kernel, or we are | |
1422 | * running in a container we don't support swap units, and any | |
1423 | * attempts to starting one should fail immediately. */ | |
1424 | ||
1425 | if (supported < 0) | |
1426 | supported = | |
1427 | access("/proc/swaps", F_OK) >= 0 && | |
75f86906 | 1428 | detect_container() <= 0; |
0faacd47 LP |
1429 | |
1430 | return supported; | |
1431 | } | |
1432 | ||
291d565a LP |
1433 | static int swap_control_pid(Unit *u) { |
1434 | Swap *s = SWAP(u); | |
1435 | ||
1436 | assert(s); | |
1437 | ||
1438 | return s->control_pid; | |
1439 | } | |
1440 | ||
e04aad61 LP |
1441 | static const char* const swap_exec_command_table[_SWAP_EXEC_COMMAND_MAX] = { |
1442 | [SWAP_EXEC_ACTIVATE] = "ExecActivate", | |
1443 | [SWAP_EXEC_DEACTIVATE] = "ExecDeactivate", | |
1444 | }; | |
1445 | ||
1446 | DEFINE_STRING_TABLE_LOOKUP(swap_exec_command, SwapExecCommand); | |
1447 | ||
e1770af8 LP |
1448 | static const char* const swap_result_table[_SWAP_RESULT_MAX] = { |
1449 | [SWAP_SUCCESS] = "success", | |
1450 | [SWAP_FAILURE_RESOURCES] = "resources", | |
1451 | [SWAP_FAILURE_TIMEOUT] = "timeout", | |
1452 | [SWAP_FAILURE_EXIT_CODE] = "exit-code", | |
1453 | [SWAP_FAILURE_SIGNAL] = "signal", | |
07299350 LP |
1454 | [SWAP_FAILURE_CORE_DUMP] = "core-dump", |
1455 | [SWAP_FAILURE_START_LIMIT_HIT] = "start-limit-hit", | |
e1770af8 LP |
1456 | }; |
1457 | ||
1458 | DEFINE_STRING_TABLE_LOOKUP(swap_result, SwapResult); | |
1459 | ||
07b0b134 | 1460 | const UnitVTable swap_vtable = { |
7d17cfbc | 1461 | .object_size = sizeof(Swap), |
718db961 LP |
1462 | .exec_context_offset = offsetof(Swap, exec_context), |
1463 | .cgroup_context_offset = offsetof(Swap, cgroup_context), | |
1464 | .kill_context_offset = offsetof(Swap, kill_context), | |
613b411c | 1465 | .exec_runtime_offset = offsetof(Swap, exec_runtime), |
29206d46 | 1466 | .dynamic_creds_offset = offsetof(Swap, dynamic_creds), |
3ef63c31 | 1467 | |
f975e971 LP |
1468 | .sections = |
1469 | "Unit\0" | |
1470 | "Swap\0" | |
1471 | "Install\0", | |
4ad49000 | 1472 | .private_section = "Swap", |
71645aca | 1473 | |
4e85aff4 | 1474 | .init = swap_init, |
07b0b134 | 1475 | .load = swap_load, |
6e620bec | 1476 | .done = swap_done, |
07b0b134 ML |
1477 | |
1478 | .coldplug = swap_coldplug, | |
1479 | ||
1480 | .dump = swap_dump, | |
1481 | ||
1482 | .start = swap_start, | |
1483 | .stop = swap_stop, | |
1484 | ||
8a0867d6 LP |
1485 | .kill = swap_kill, |
1486 | ||
68db7a3b ZJS |
1487 | .get_timeout = swap_get_timeout, |
1488 | ||
07b0b134 ML |
1489 | .serialize = swap_serialize, |
1490 | .deserialize_item = swap_deserialize_item, | |
1491 | ||
1492 | .active_state = swap_active_state, | |
1493 | .sub_state_to_string = swap_sub_state_to_string, | |
1494 | ||
f2f725e5 | 1495 | .may_gc = swap_may_gc, |
07b0b134 | 1496 | |
e04aad61 | 1497 | .sigchld_event = swap_sigchld_event, |
e04aad61 LP |
1498 | |
1499 | .reset_failed = swap_reset_failed, | |
1500 | ||
291d565a LP |
1501 | .control_pid = swap_control_pid, |
1502 | ||
718db961 | 1503 | .bus_vtable = bus_swap_vtable, |
74c964d3 LP |
1504 | .bus_set_property = bus_swap_set_property, |
1505 | .bus_commit_properties = bus_swap_commit_properties, | |
07b0b134 | 1506 | |
e04aad61 | 1507 | .following = swap_following, |
6210e7fc | 1508 | .following_set = swap_following_set, |
5632e374 | 1509 | |
6e620bec | 1510 | .enumerate = swap_enumerate, |
c6918296 | 1511 | .shutdown = swap_shutdown, |
0faacd47 | 1512 | .supported = swap_supported, |
c6918296 MS |
1513 | |
1514 | .status_message_formats = { | |
1515 | .starting_stopping = { | |
1516 | [0] = "Activating swap %s...", | |
1517 | [1] = "Deactivating swap %s...", | |
1518 | }, | |
1519 | .finished_start_job = { | |
1520 | [JOB_DONE] = "Activated swap %s.", | |
1521 | [JOB_FAILED] = "Failed to activate swap %s.", | |
c6918296 MS |
1522 | [JOB_TIMEOUT] = "Timed out activating swap %s.", |
1523 | }, | |
1524 | .finished_stop_job = { | |
1525 | [JOB_DONE] = "Deactivated swap %s.", | |
1526 | [JOB_FAILED] = "Failed deactivating swap %s.", | |
1527 | [JOB_TIMEOUT] = "Timed out deactivating swap %s.", | |
1528 | }, | |
1529 | }, | |
07b0b134 | 1530 | }; |