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Commit | Line | Data |
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07b0b134 ML |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2010 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
7 | under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
07b0b134 ML |
9 | (at your option) any later version. |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 14 | Lesser General Public License for more details. |
07b0b134 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
07b0b134 ML |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
20 | #include <errno.h> | |
07b0b134 ML |
21 | #include <sys/epoll.h> |
22 | #include <sys/stat.h> | |
4f5dd394 | 23 | #include <unistd.h> |
07b0b134 | 24 | |
b4bbcaa9 TA |
25 | #include "libudev.h" |
26 | ||
b5efdb8a | 27 | #include "alloc-util.h" |
07b0b134 | 28 | #include "dbus-swap.h" |
4f5dd394 | 29 | #include "escape.h" |
9a57c629 | 30 | #include "exit-status.h" |
3ffd4af2 | 31 | #include "fd-util.h" |
f97b34a6 | 32 | #include "format-util.h" |
4f5dd394 | 33 | #include "fstab-util.h" |
6bedfcbb | 34 | #include "parse-util.h" |
9eb977db | 35 | #include "path-util.h" |
7b3e062c | 36 | #include "process-util.h" |
4f5dd394 | 37 | #include "special.h" |
8b43440b | 38 | #include "string-table.h" |
07630cea | 39 | #include "string-util.h" |
3ffd4af2 | 40 | #include "swap.h" |
5bcb0f2b | 41 | #include "udev-util.h" |
4f5dd394 LP |
42 | #include "unit-name.h" |
43 | #include "unit.h" | |
44 | #include "virt.h" | |
07b0b134 ML |
45 | |
46 | static const UnitActiveState state_translation_table[_SWAP_STATE_MAX] = { | |
47 | [SWAP_DEAD] = UNIT_INACTIVE, | |
e04aad61 | 48 | [SWAP_ACTIVATING] = UNIT_ACTIVATING, |
5bcb0f2b | 49 | [SWAP_ACTIVATING_DONE] = UNIT_ACTIVE, |
07b0b134 | 50 | [SWAP_ACTIVE] = UNIT_ACTIVE, |
e04aad61 | 51 | [SWAP_DEACTIVATING] = UNIT_DEACTIVATING, |
e04aad61 LP |
52 | [SWAP_DEACTIVATING_SIGTERM] = UNIT_DEACTIVATING, |
53 | [SWAP_DEACTIVATING_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 54 | [SWAP_FAILED] = UNIT_FAILED |
07b0b134 ML |
55 | }; |
56 | ||
718db961 LP |
57 | static int swap_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
58 | static int swap_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
59 | ||
dedf3719 LP |
60 | static bool SWAP_STATE_WITH_PROCESS(SwapState state) { |
61 | return IN_SET(state, | |
62 | SWAP_ACTIVATING, | |
63 | SWAP_ACTIVATING_DONE, | |
64 | SWAP_DEACTIVATING, | |
65 | SWAP_DEACTIVATING_SIGTERM, | |
66 | SWAP_DEACTIVATING_SIGKILL); | |
67 | } | |
68 | ||
e04aad61 | 69 | static void swap_unset_proc_swaps(Swap *s) { |
9670d583 LP |
70 | assert(s); |
71 | ||
72 | if (!s->from_proc_swaps) | |
73 | return; | |
74 | ||
a1e58e8e | 75 | s->parameters_proc_swaps.what = mfree(s->parameters_proc_swaps.what); |
9670d583 LP |
76 | |
77 | s->from_proc_swaps = false; | |
78 | } | |
79 | ||
80 | static int swap_set_devnode(Swap *s, const char *devnode) { | |
df326b84 | 81 | Hashmap *swaps; |
5bcb0f2b | 82 | Swap *first; |
9670d583 | 83 | int r; |
e04aad61 LP |
84 | |
85 | assert(s); | |
86 | ||
d5099efc | 87 | r = hashmap_ensure_allocated(&UNIT(s)->manager->swaps_by_devnode, &string_hash_ops); |
9670d583 LP |
88 | if (r < 0) |
89 | return r; | |
e04aad61 | 90 | |
9670d583 | 91 | swaps = UNIT(s)->manager->swaps_by_devnode; |
e04aad61 | 92 | |
9670d583 LP |
93 | if (s->devnode) { |
94 | first = hashmap_get(swaps, s->devnode); | |
e04aad61 | 95 | |
9670d583 LP |
96 | LIST_REMOVE(same_devnode, first, s); |
97 | if (first) | |
98 | hashmap_replace(swaps, first->devnode, first); | |
99 | else | |
100 | hashmap_remove(swaps, s->devnode); | |
5bcb0f2b | 101 | |
a1e58e8e | 102 | s->devnode = mfree(s->devnode); |
9670d583 LP |
103 | } |
104 | ||
105 | if (devnode) { | |
106 | s->devnode = strdup(devnode); | |
107 | if (!s->devnode) | |
108 | return -ENOMEM; | |
109 | ||
110 | first = hashmap_get(swaps, s->devnode); | |
111 | LIST_PREPEND(same_devnode, first, s); | |
112 | ||
113 | return hashmap_replace(swaps, first->devnode, first); | |
114 | } | |
115 | ||
116 | return 0; | |
e04aad61 LP |
117 | } |
118 | ||
f6cebb3b | 119 | static void swap_init(Unit *u) { |
6e620bec LP |
120 | Swap *s = SWAP(u); |
121 | ||
122 | assert(s); | |
1124fe6f | 123 | assert(UNIT(s)->load_state == UNIT_STUB); |
6e620bec | 124 | |
1f19a534 | 125 | s->timeout_usec = u->manager->default_timeout_start_usec; |
e04aad61 | 126 | |
ac155bb8 MS |
127 | s->exec_context.std_output = u->manager->default_std_output; |
128 | s->exec_context.std_error = u->manager->default_std_error; | |
085afe36 | 129 | |
6b1dc2bd | 130 | s->parameters_proc_swaps.priority = s->parameters_fragment.priority = -1; |
e04aad61 | 131 | |
e1770af8 | 132 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; |
c8f4d764 | 133 | |
5bcb0f2b | 134 | u->ignore_on_isolate = true; |
e04aad61 LP |
135 | } |
136 | ||
137 | static void swap_unwatch_control_pid(Swap *s) { | |
138 | assert(s); | |
139 | ||
140 | if (s->control_pid <= 0) | |
141 | return; | |
142 | ||
143 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
144 | s->control_pid = 0; | |
6e620bec LP |
145 | } |
146 | ||
4e85aff4 LP |
147 | static void swap_done(Unit *u) { |
148 | Swap *s = SWAP(u); | |
07b0b134 | 149 | |
4e85aff4 | 150 | assert(s); |
07b0b134 | 151 | |
e04aad61 | 152 | swap_unset_proc_swaps(s); |
9670d583 | 153 | swap_set_devnode(s, NULL); |
e04aad61 | 154 | |
a1e58e8e LP |
155 | s->what = mfree(s->what); |
156 | s->parameters_fragment.what = mfree(s->parameters_fragment.what); | |
157 | s->parameters_fragment.options = mfree(s->parameters_fragment.options); | |
86b23b07 | 158 | |
613b411c | 159 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e04aad61 LP |
160 | exec_command_done_array(s->exec_command, _SWAP_EXEC_COMMAND_MAX); |
161 | s->control_command = NULL; | |
162 | ||
29206d46 LP |
163 | dynamic_creds_unref(&s->dynamic_creds); |
164 | ||
e04aad61 LP |
165 | swap_unwatch_control_pid(s); |
166 | ||
718db961 LP |
167 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
168 | } | |
169 | ||
36c16a7c | 170 | static int swap_arm_timer(Swap *s, usec_t usec) { |
718db961 LP |
171 | int r; |
172 | ||
173 | assert(s); | |
174 | ||
718db961 | 175 | if (s->timer_event_source) { |
36c16a7c | 176 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
177 | if (r < 0) |
178 | return r; | |
179 | ||
180 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
181 | } | |
182 | ||
36c16a7c LP |
183 | if (usec == USEC_INFINITY) |
184 | return 0; | |
185 | ||
7dfbe2e3 | 186 | r = sd_event_add_time( |
6a0f1f6d LP |
187 | UNIT(s)->manager->event, |
188 | &s->timer_event_source, | |
189 | CLOCK_MONOTONIC, | |
36c16a7c | 190 | usec, 0, |
6a0f1f6d | 191 | swap_dispatch_timer, s); |
7dfbe2e3 TG |
192 | if (r < 0) |
193 | return r; | |
194 | ||
195 | (void) sd_event_source_set_description(s->timer_event_source, "swap-timer"); | |
196 | ||
197 | return 0; | |
07b0b134 ML |
198 | } |
199 | ||
173a8d04 | 200 | static int swap_add_device_links(Swap *s) { |
173a8d04 LP |
201 | assert(s); |
202 | ||
203 | if (!s->what) | |
204 | return 0; | |
205 | ||
f10af76d LP |
206 | if (!s->from_fragment) |
207 | return 0; | |
208 | ||
cfcfd4ae | 209 | if (is_device_path(s->what)) |
463d0d15 | 210 | return unit_add_node_link(UNIT(s), s->what, MANAGER_IS_SYSTEM(UNIT(s)->manager), UNIT_BINDS_TO); |
cfcfd4ae LP |
211 | else |
212 | /* File based swap devices need to be ordered after | |
2b93b027 | 213 | * systemd-remount-fs.service, since they might need a |
cfcfd4ae | 214 | * writable file system. */ |
2b93b027 | 215 | return unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_REMOUNT_FS_SERVICE, NULL, true); |
173a8d04 LP |
216 | } |
217 | ||
2edd4434 | 218 | static int swap_add_default_dependencies(Swap *s) { |
8bf23dc7 FB |
219 | int r; |
220 | ||
2edd4434 LP |
221 | assert(s); |
222 | ||
4c9ea260 LP |
223 | if (!UNIT(s)->default_dependencies) |
224 | return 0; | |
225 | ||
463d0d15 | 226 | if (!MANAGER_IS_SYSTEM(UNIT(s)->manager)) |
6b1dc2bd | 227 | return 0; |
2edd4434 | 228 | |
75f86906 | 229 | if (detect_container() > 0) |
c0387ebf LP |
230 | return 0; |
231 | ||
8bf23dc7 FB |
232 | /* swap units generated for the swap dev links are missing the |
233 | * ordering dep against the swap target. */ | |
234 | r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SWAP_TARGET, NULL, true); | |
235 | if (r < 0) | |
236 | return r; | |
237 | ||
5607d856 | 238 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true); |
2edd4434 LP |
239 | } |
240 | ||
4e85aff4 | 241 | static int swap_verify(Swap *s) { |
7fd1b19b | 242 | _cleanup_free_ char *e = NULL; |
7410616c | 243 | int r; |
4e85aff4 | 244 | |
1124fe6f | 245 | if (UNIT(s)->load_state != UNIT_LOADED) |
5bcb0f2b | 246 | return 0; |
4e85aff4 | 247 | |
7410616c LP |
248 | r = unit_name_from_path(s->what, ".swap", &e); |
249 | if (r < 0) | |
f2341e0a | 250 | return log_unit_error_errno(UNIT(s), r, "Failed to generate unit name from path: %m"); |
4e85aff4 | 251 | |
7410616c | 252 | if (!unit_has_name(UNIT(s), e)) { |
f2341e0a | 253 | log_unit_error(UNIT(s), "Value of What= and unit name do not match, not loading."); |
4e85aff4 LP |
254 | return -EINVAL; |
255 | } | |
256 | ||
4819ff03 | 257 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { |
f2341e0a | 258 | log_unit_error(UNIT(s), "Unit has PAM enabled. Kill mode must be set to 'control-group'. Refusing to load."); |
e04aad61 LP |
259 | return -EINVAL; |
260 | } | |
261 | ||
4e85aff4 LP |
262 | return 0; |
263 | } | |
264 | ||
9670d583 LP |
265 | static int swap_load_devnode(Swap *s) { |
266 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; | |
267 | struct stat st; | |
268 | const char *p; | |
269 | ||
270 | assert(s); | |
271 | ||
272 | if (stat(s->what, &st) < 0 || !S_ISBLK(st.st_mode)) | |
273 | return 0; | |
274 | ||
275 | d = udev_device_new_from_devnum(UNIT(s)->manager->udev, 'b', st.st_rdev); | |
276 | if (!d) | |
277 | return 0; | |
278 | ||
279 | p = udev_device_get_devnode(d); | |
280 | if (!p) | |
281 | return 0; | |
282 | ||
283 | return swap_set_devnode(s, p); | |
284 | } | |
285 | ||
07b0b134 ML |
286 | static int swap_load(Unit *u) { |
287 | int r; | |
288 | Swap *s = SWAP(u); | |
289 | ||
290 | assert(s); | |
ac155bb8 | 291 | assert(u->load_state == UNIT_STUB); |
07b0b134 ML |
292 | |
293 | /* Load a .swap file */ | |
646134dc ZJS |
294 | r = unit_load_fragment_and_dropin_optional(u); |
295 | if (r < 0) | |
07b0b134 ML |
296 | return r; |
297 | ||
ac155bb8 | 298 | if (u->load_state == UNIT_LOADED) { |
4e85aff4 | 299 | |
1124fe6f | 300 | if (UNIT(s)->fragment_path) |
4e85aff4 LP |
301 | s->from_fragment = true; |
302 | ||
303 | if (!s->what) { | |
304 | if (s->parameters_fragment.what) | |
305 | s->what = strdup(s->parameters_fragment.what); | |
4e85aff4 LP |
306 | else if (s->parameters_proc_swaps.what) |
307 | s->what = strdup(s->parameters_proc_swaps.what); | |
7410616c LP |
308 | else { |
309 | r = unit_name_to_path(u->id, &s->what); | |
310 | if (r < 0) | |
311 | return r; | |
312 | } | |
4e85aff4 LP |
313 | |
314 | if (!s->what) | |
07b0b134 | 315 | return -ENOMEM; |
4e85aff4 | 316 | } |
07b0b134 ML |
317 | |
318 | path_kill_slashes(s->what); | |
319 | ||
5bcb0f2b LP |
320 | if (!UNIT(s)->description) { |
321 | r = unit_set_description(u, s->what); | |
322 | if (r < 0) | |
4e85aff4 | 323 | return r; |
5bcb0f2b | 324 | } |
4e85aff4 | 325 | |
a57f7e2c | 326 | r = unit_require_mounts_for(UNIT(s), s->what); |
646134dc | 327 | if (r < 0) |
07b0b134 ML |
328 | return r; |
329 | ||
a57f7e2c | 330 | r = swap_add_device_links(s); |
646134dc | 331 | if (r < 0) |
6e2ef85b | 332 | return r; |
07b0b134 | 333 | |
9670d583 LP |
334 | r = swap_load_devnode(s); |
335 | if (r < 0) | |
336 | return r; | |
337 | ||
598459ce LP |
338 | r = unit_patch_contexts(u); |
339 | if (r < 0) | |
340 | return r; | |
341 | ||
342 | r = unit_add_exec_dependencies(u, &s->exec_context); | |
343 | if (r < 0) | |
344 | return r; | |
345 | ||
d79200e2 | 346 | r = unit_set_default_slice(u); |
a016b922 LP |
347 | if (r < 0) |
348 | return r; | |
349 | ||
4c9ea260 LP |
350 | r = swap_add_default_dependencies(s); |
351 | if (r < 0) | |
352 | return r; | |
07b0b134 ML |
353 | } |
354 | ||
355 | return swap_verify(s); | |
356 | } | |
357 | ||
628c89cc | 358 | static int swap_setup_unit( |
4e85aff4 LP |
359 | Manager *m, |
360 | const char *what, | |
e04aad61 | 361 | const char *what_proc_swaps, |
4e85aff4 | 362 | int priority, |
e04aad61 LP |
363 | bool set_flags) { |
364 | ||
7fd1b19b | 365 | _cleanup_free_ char *e = NULL; |
2c7c6144 | 366 | bool delete = false; |
5bcb0f2b | 367 | Unit *u = NULL; |
07b0b134 | 368 | int r; |
4e85aff4 LP |
369 | SwapParameters *p; |
370 | ||
371 | assert(m); | |
372 | assert(what); | |
6b1dc2bd | 373 | assert(what_proc_swaps); |
07b0b134 | 374 | |
7410616c LP |
375 | r = unit_name_from_path(what, ".swap", &e); |
376 | if (r < 0) | |
f2341e0a | 377 | return log_unit_error_errno(u, r, "Failed to generate unit name from path: %m"); |
07b0b134 | 378 | |
e04aad61 LP |
379 | u = manager_get_unit(m, e); |
380 | ||
6b1dc2bd | 381 | if (u && |
e04aad61 | 382 | SWAP(u)->from_proc_swaps && |
628c89cc LP |
383 | !path_equal(SWAP(u)->parameters_proc_swaps.what, what_proc_swaps)) { |
384 | log_error("Swap %s appeared twice with different device paths %s and %s", e, SWAP(u)->parameters_proc_swaps.what, what_proc_swaps); | |
e04aad61 | 385 | return -EEXIST; |
628c89cc | 386 | } |
4e85aff4 LP |
387 | |
388 | if (!u) { | |
07b0b134 ML |
389 | delete = true; |
390 | ||
a581e45a | 391 | r = unit_new_for_name(m, sizeof(Swap), e, &u); |
7d17cfbc | 392 | if (r < 0) |
e04aad61 LP |
393 | goto fail; |
394 | ||
7d17cfbc MS |
395 | SWAP(u)->what = strdup(what); |
396 | if (!SWAP(u)->what) { | |
628c89cc | 397 | r = -ENOMEM; |
e04aad61 LP |
398 | goto fail; |
399 | } | |
400 | ||
401 | unit_add_to_load_queue(u); | |
4e85aff4 LP |
402 | } else |
403 | delete = false; | |
07b0b134 | 404 | |
6b1dc2bd | 405 | p = &SWAP(u)->parameters_proc_swaps; |
07b0b134 | 406 | |
6b1dc2bd | 407 | if (!p->what) { |
5bcb0f2b LP |
408 | p->what = strdup(what_proc_swaps); |
409 | if (!p->what) { | |
410 | r = -ENOMEM; | |
6b1dc2bd LP |
411 | goto fail; |
412 | } | |
6b1dc2bd | 413 | } |
e04aad61 | 414 | |
6b1dc2bd LP |
415 | if (set_flags) { |
416 | SWAP(u)->is_active = true; | |
417 | SWAP(u)->just_activated = !SWAP(u)->from_proc_swaps; | |
4e85aff4 | 418 | } |
07b0b134 | 419 | |
6b1dc2bd LP |
420 | SWAP(u)->from_proc_swaps = true; |
421 | ||
4e85aff4 | 422 | p->priority = priority; |
07b0b134 | 423 | |
4e85aff4 | 424 | unit_add_to_dbus_queue(u); |
07b0b134 ML |
425 | return 0; |
426 | ||
427 | fail: | |
f2341e0a | 428 | log_unit_warning_errno(u, r, "Failed to load swap unit: %m"); |
e04aad61 | 429 | |
c9d5c9c0 | 430 | if (delete) |
07b0b134 ML |
431 | unit_free(u); |
432 | ||
4e85aff4 | 433 | return r; |
07b0b134 ML |
434 | } |
435 | ||
628c89cc | 436 | static int swap_process_new(Manager *m, const char *device, int prio, bool set_flags) { |
5bcb0f2b LP |
437 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
438 | struct udev_list_entry *item = NULL, *first = NULL; | |
439 | const char *dn; | |
e04aad61 | 440 | struct stat st; |
5bcb0f2b | 441 | int r; |
e04aad61 LP |
442 | |
443 | assert(m); | |
444 | ||
628c89cc | 445 | r = swap_setup_unit(m, device, device, prio, set_flags); |
5bcb0f2b LP |
446 | if (r < 0) |
447 | return r; | |
e04aad61 | 448 | |
5bcb0f2b LP |
449 | /* If this is a block device, then let's add duplicates for |
450 | * all other names of this block device */ | |
451 | if (stat(device, &st) < 0 || !S_ISBLK(st.st_mode)) | |
452 | return 0; | |
e04aad61 | 453 | |
5bcb0f2b LP |
454 | d = udev_device_new_from_devnum(m->udev, 'b', st.st_rdev); |
455 | if (!d) | |
456 | return 0; | |
e04aad61 | 457 | |
5bcb0f2b LP |
458 | /* Add the main device node */ |
459 | dn = udev_device_get_devnode(d); | |
460 | if (dn && !streq(dn, device)) | |
628c89cc | 461 | swap_setup_unit(m, dn, device, prio, set_flags); |
e04aad61 | 462 | |
5bcb0f2b LP |
463 | /* Add additional units for all symlinks */ |
464 | first = udev_device_get_devlinks_list_entry(d); | |
465 | udev_list_entry_foreach(item, first) { | |
466 | const char *p; | |
e04aad61 | 467 | |
5bcb0f2b LP |
468 | /* Don't bother with the /dev/block links */ |
469 | p = udev_list_entry_get_name(item); | |
e04aad61 | 470 | |
5bcb0f2b LP |
471 | if (streq(p, device)) |
472 | continue; | |
e04aad61 | 473 | |
5bcb0f2b LP |
474 | if (path_startswith(p, "/dev/block/")) |
475 | continue; | |
e04aad61 | 476 | |
5bcb0f2b LP |
477 | if (stat(p, &st) >= 0) |
478 | if (!S_ISBLK(st.st_mode) || | |
479 | st.st_rdev != udev_device_get_devnum(d)) | |
480 | continue; | |
e04aad61 | 481 | |
628c89cc | 482 | swap_setup_unit(m, p, device, prio, set_flags); |
e04aad61 LP |
483 | } |
484 | ||
e04aad61 LP |
485 | return r; |
486 | } | |
487 | ||
07b0b134 ML |
488 | static void swap_set_state(Swap *s, SwapState state) { |
489 | SwapState old_state; | |
37cf8fee | 490 | Swap *other; |
e04aad61 | 491 | |
07b0b134 ML |
492 | assert(s); |
493 | ||
494 | old_state = s->state; | |
495 | s->state = state; | |
496 | ||
dedf3719 | 497 | if (!SWAP_STATE_WITH_PROCESS(state)) { |
718db961 | 498 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
e04aad61 LP |
499 | swap_unwatch_control_pid(s); |
500 | s->control_command = NULL; | |
501 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; | |
502 | } | |
503 | ||
07b0b134 | 504 | if (state != old_state) |
f2341e0a | 505 | log_unit_debug(UNIT(s), "Changed %s -> %s", swap_state_to_string(old_state), swap_state_to_string(state)); |
07b0b134 | 506 | |
5bcb0f2b | 507 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true); |
37cf8fee LP |
508 | |
509 | /* If there other units for the same device node have a job | |
510 | queued it might be worth checking again if it is runnable | |
511 | now. This is necessary, since swap_start() refuses | |
512 | operation with EAGAIN if there's already another job for | |
513 | the same device node queued. */ | |
514 | LIST_FOREACH_OTHERS(same_devnode, other, s) | |
515 | if (UNIT(other)->job) | |
516 | job_add_to_run_queue(UNIT(other)->job); | |
07b0b134 ML |
517 | } |
518 | ||
be847e82 | 519 | static int swap_coldplug(Unit *u) { |
07b0b134 ML |
520 | Swap *s = SWAP(u); |
521 | SwapState new_state = SWAP_DEAD; | |
e04aad61 | 522 | int r; |
07b0b134 ML |
523 | |
524 | assert(s); | |
525 | assert(s->state == SWAP_DEAD); | |
526 | ||
527 | if (s->deserialized_state != s->state) | |
528 | new_state = s->deserialized_state; | |
4e85aff4 | 529 | else if (s->from_proc_swaps) |
07b0b134 ML |
530 | new_state = SWAP_ACTIVE; |
531 | ||
5bcb0f2b LP |
532 | if (new_state == s->state) |
533 | return 0; | |
e04aad61 | 534 | |
c386f588 LP |
535 | if (s->control_pid > 0 && |
536 | pid_is_unwaited(s->control_pid) && | |
dedf3719 | 537 | SWAP_STATE_WITH_PROCESS(new_state)) { |
e04aad61 | 538 | |
5bcb0f2b LP |
539 | r = unit_watch_pid(UNIT(s), s->control_pid); |
540 | if (r < 0) | |
541 | return r; | |
e04aad61 | 542 | |
36c16a7c | 543 | r = swap_arm_timer(s, usec_add(u->state_change_timestamp.monotonic, s->timeout_usec)); |
5bcb0f2b LP |
544 | if (r < 0) |
545 | return r; | |
e04aad61 | 546 | } |
07b0b134 | 547 | |
29206d46 LP |
548 | if (!IN_SET(new_state, SWAP_DEAD, SWAP_FAILED)) |
549 | (void) unit_setup_dynamic_creds(u); | |
550 | ||
5bcb0f2b | 551 | swap_set_state(s, new_state); |
07b0b134 ML |
552 | return 0; |
553 | } | |
554 | ||
555 | static void swap_dump(Unit *u, FILE *f, const char *prefix) { | |
556 | Swap *s = SWAP(u); | |
4e85aff4 | 557 | SwapParameters *p; |
07b0b134 ML |
558 | |
559 | assert(s); | |
4e85aff4 LP |
560 | assert(f); |
561 | ||
562 | if (s->from_proc_swaps) | |
563 | p = &s->parameters_proc_swaps; | |
564 | else if (s->from_fragment) | |
565 | p = &s->parameters_fragment; | |
b6bfc7bb LP |
566 | else |
567 | p = NULL; | |
07b0b134 ML |
568 | |
569 | fprintf(f, | |
4e85aff4 | 570 | "%sSwap State: %s\n" |
e1770af8 | 571 | "%sResult: %s\n" |
07b0b134 | 572 | "%sWhat: %s\n" |
4e85aff4 LP |
573 | "%sFrom /proc/swaps: %s\n" |
574 | "%sFrom fragment: %s\n", | |
07b0b134 | 575 | prefix, swap_state_to_string(s->state), |
e1770af8 | 576 | prefix, swap_result_to_string(s->result), |
07b0b134 | 577 | prefix, s->what, |
4e85aff4 LP |
578 | prefix, yes_no(s->from_proc_swaps), |
579 | prefix, yes_no(s->from_fragment)); | |
e04aad61 | 580 | |
9670d583 LP |
581 | if (s->devnode) |
582 | fprintf(f, "%sDevice Node: %s\n", prefix, s->devnode); | |
583 | ||
b6bfc7bb LP |
584 | if (p) |
585 | fprintf(f, | |
586 | "%sPriority: %i\n" | |
47cb901e | 587 | "%sOptions: %s\n", |
b6bfc7bb | 588 | prefix, p->priority, |
47cb901e | 589 | prefix, strempty(p->options)); |
b6bfc7bb | 590 | |
e04aad61 LP |
591 | if (s->control_pid > 0) |
592 | fprintf(f, | |
de0671ee ZJS |
593 | "%sControl PID: "PID_FMT"\n", |
594 | prefix, s->control_pid); | |
e04aad61 LP |
595 | |
596 | exec_context_dump(&s->exec_context, f, prefix); | |
4819ff03 | 597 | kill_context_dump(&s->kill_context, f, prefix); |
18f573aa | 598 | cgroup_context_dump(&s->cgroup_context, f, prefix); |
e04aad61 LP |
599 | } |
600 | ||
601 | static int swap_spawn(Swap *s, ExecCommand *c, pid_t *_pid) { | |
602 | pid_t pid; | |
603 | int r; | |
9fa95f85 | 604 | ExecParameters exec_params = { |
1703fa41 | 605 | .flags = EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN, |
c39f1ce2 LP |
606 | .stdin_fd = -1, |
607 | .stdout_fd = -1, | |
608 | .stderr_fd = -1, | |
9fa95f85 | 609 | }; |
e04aad61 LP |
610 | |
611 | assert(s); | |
612 | assert(c); | |
613 | assert(_pid); | |
614 | ||
5ad096b3 | 615 | (void) unit_realize_cgroup(UNIT(s)); |
906c06f6 DM |
616 | if (s->reset_accounting) { |
617 | (void) unit_reset_cpu_accounting(UNIT(s)); | |
618 | (void) unit_reset_ip_accounting(UNIT(s)); | |
619 | s->reset_accounting = false; | |
5ad096b3 | 620 | } |
4ad49000 | 621 | |
613b411c LP |
622 | r = unit_setup_exec_runtime(UNIT(s)); |
623 | if (r < 0) | |
624 | goto fail; | |
625 | ||
29206d46 LP |
626 | r = unit_setup_dynamic_creds(UNIT(s)); |
627 | if (r < 0) | |
3536f49e | 628 | goto fail; |
29206d46 | 629 | |
36c16a7c | 630 | r = swap_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_usec)); |
646134dc | 631 | if (r < 0) |
e04aad61 LP |
632 | goto fail; |
633 | ||
19bbdd98 | 634 | manager_set_exec_params(UNIT(s)->manager, &exec_params); |
f0d47797 | 635 | unit_set_exec_params(UNIT(s), &exec_params); |
9fa95f85 | 636 | |
f2341e0a LP |
637 | r = exec_spawn(UNIT(s), |
638 | c, | |
646134dc | 639 | &s->exec_context, |
9fa95f85 | 640 | &exec_params, |
613b411c | 641 | s->exec_runtime, |
29206d46 | 642 | &s->dynamic_creds, |
646134dc ZJS |
643 | &pid); |
644 | if (r < 0) | |
e04aad61 LP |
645 | goto fail; |
646 | ||
646134dc ZJS |
647 | r = unit_watch_pid(UNIT(s), pid); |
648 | if (r < 0) | |
e04aad61 LP |
649 | /* FIXME: we need to do something here */ |
650 | goto fail; | |
651 | ||
652 | *_pid = pid; | |
653 | ||
654 | return 0; | |
655 | ||
656 | fail: | |
718db961 | 657 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
3536f49e | 658 | |
e04aad61 | 659 | return r; |
07b0b134 ML |
660 | } |
661 | ||
e1770af8 | 662 | static void swap_enter_dead(Swap *s, SwapResult f) { |
07b0b134 ML |
663 | assert(s); |
664 | ||
a0fef983 | 665 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 666 | s->result = f; |
e04aad61 | 667 | |
ed77d407 LP |
668 | if (s->result != SWAP_SUCCESS) |
669 | log_unit_warning(UNIT(s), "Failed with result '%s'.", swap_result_to_string(s->result)); | |
670 | ||
29206d46 LP |
671 | swap_set_state(s, s->result != SWAP_SUCCESS ? SWAP_FAILED : SWAP_DEAD); |
672 | ||
613b411c LP |
673 | exec_runtime_destroy(s->exec_runtime); |
674 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
675 | ||
3536f49e | 676 | exec_context_destroy_runtime_directory(&s->exec_context, UNIT(s)->manager->prefix[EXEC_DIRECTORY_RUNTIME]); |
e66cf1a3 | 677 | |
00d9ef85 LP |
678 | unit_unref_uid_gid(UNIT(s), true); |
679 | ||
29206d46 | 680 | dynamic_creds_destroy(&s->dynamic_creds); |
07b0b134 ML |
681 | } |
682 | ||
e1770af8 | 683 | static void swap_enter_active(Swap *s, SwapResult f) { |
e04aad61 LP |
684 | assert(s); |
685 | ||
a0fef983 | 686 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 687 | s->result = f; |
e04aad61 LP |
688 | |
689 | swap_set_state(s, SWAP_ACTIVE); | |
690 | } | |
691 | ||
50864457 LP |
692 | static void swap_enter_dead_or_active(Swap *s, SwapResult f) { |
693 | assert(s); | |
694 | ||
695 | if (s->from_proc_swaps) | |
696 | swap_enter_active(s, f); | |
697 | else | |
698 | swap_enter_dead(s, f); | |
699 | } | |
700 | ||
e1770af8 | 701 | static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) { |
07b0b134 | 702 | int r; |
d31ae548 | 703 | KillOperation kop; |
07b0b134 ML |
704 | |
705 | assert(s); | |
e04aad61 | 706 | |
a0fef983 | 707 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 708 | s->result = f; |
e04aad61 | 709 | |
50864457 | 710 | if (state == SWAP_DEACTIVATING_SIGTERM) |
d31ae548 FB |
711 | kop = KILL_TERMINATE; |
712 | else | |
713 | kop = KILL_KILL; | |
714 | ||
715 | r = unit_kill_context(UNIT(s), &s->kill_context, kop, -1, s->control_pid, false); | |
cd2086fe LP |
716 | if (r < 0) |
717 | goto fail; | |
e04aad61 | 718 | |
cd2086fe | 719 | if (r > 0) { |
36c16a7c | 720 | r = swap_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_usec)); |
646134dc | 721 | if (r < 0) |
e04aad61 LP |
722 | goto fail; |
723 | ||
724 | swap_set_state(s, state); | |
50864457 | 725 | } else if (state == SWAP_DEACTIVATING_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb LP |
726 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_SUCCESS); |
727 | else | |
50864457 | 728 | swap_enter_dead_or_active(s, SWAP_SUCCESS); |
e04aad61 LP |
729 | |
730 | return; | |
731 | ||
732 | fail: | |
f2341e0a | 733 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
50864457 | 734 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
735 | } |
736 | ||
737 | static void swap_enter_activating(Swap *s) { | |
bf1d7ba7 KZ |
738 | _cleanup_free_ char *opts = NULL; |
739 | int r; | |
e04aad61 LP |
740 | |
741 | assert(s); | |
742 | ||
743 | s->control_command_id = SWAP_EXEC_ACTIVATE; | |
744 | s->control_command = s->exec_command + SWAP_EXEC_ACTIVATE; | |
07b0b134 | 745 | |
86b23b07 | 746 | if (s->from_fragment) { |
bf1d7ba7 | 747 | int priority = -1; |
47cb901e | 748 | |
bf1d7ba7 KZ |
749 | r = fstab_find_pri(s->parameters_fragment.options, &priority); |
750 | if (r < 0) | |
751 | log_warning_errno(r, "Failed to parse swap priority \"%s\", ignoring: %m", s->parameters_fragment.options); | |
752 | else if (r == 1 && s->parameters_fragment.priority >= 0) | |
753 | log_warning("Duplicate swap priority configuration by Priority and Options fields."); | |
754 | ||
755 | if (r <= 0 && s->parameters_fragment.priority >= 0) { | |
756 | if (s->parameters_fragment.options) | |
757 | r = asprintf(&opts, "%s,pri=%i", s->parameters_fragment.options, s->parameters_fragment.priority); | |
758 | else | |
759 | r = asprintf(&opts, "pri=%i", s->parameters_fragment.priority); | |
e64d5235 | 760 | if (r < 0) |
bf1d7ba7 | 761 | goto fail; |
e64d5235 | 762 | } |
86b23b07 JS |
763 | } |
764 | ||
765 | r = exec_command_set(s->control_command, "/sbin/swapon", NULL); | |
766 | if (r < 0) | |
767 | goto fail; | |
4e85aff4 | 768 | |
bf1d7ba7 KZ |
769 | if (s->parameters_fragment.options || opts) { |
770 | r = exec_command_append(s->control_command, "-o", | |
771 | opts ? : s->parameters_fragment.options, NULL); | |
86b23b07 JS |
772 | if (r < 0) |
773 | goto fail; | |
774 | } | |
e04aad61 | 775 | |
86b23b07 | 776 | r = exec_command_append(s->control_command, s->what, NULL); |
e04aad61 LP |
777 | if (r < 0) |
778 | goto fail; | |
779 | ||
780 | swap_unwatch_control_pid(s); | |
781 | ||
646134dc ZJS |
782 | r = swap_spawn(s, s->control_command, &s->control_pid); |
783 | if (r < 0) | |
e04aad61 LP |
784 | goto fail; |
785 | ||
786 | swap_set_state(s, SWAP_ACTIVATING); | |
787 | ||
788 | return; | |
789 | ||
790 | fail: | |
f2341e0a | 791 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapon' task: %m"); |
50864457 | 792 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
793 | } |
794 | ||
e1770af8 | 795 | static void swap_enter_deactivating(Swap *s) { |
e04aad61 LP |
796 | int r; |
797 | ||
798 | assert(s); | |
799 | ||
e04aad61 LP |
800 | s->control_command_id = SWAP_EXEC_DEACTIVATE; |
801 | s->control_command = s->exec_command + SWAP_EXEC_DEACTIVATE; | |
802 | ||
646134dc | 803 | r = exec_command_set(s->control_command, |
e04aad61 LP |
804 | "/sbin/swapoff", |
805 | s->what, | |
646134dc ZJS |
806 | NULL); |
807 | if (r < 0) | |
e04aad61 LP |
808 | goto fail; |
809 | ||
810 | swap_unwatch_control_pid(s); | |
811 | ||
646134dc ZJS |
812 | r = swap_spawn(s, s->control_command, &s->control_pid); |
813 | if (r < 0) | |
e04aad61 LP |
814 | goto fail; |
815 | ||
816 | swap_set_state(s, SWAP_DEACTIVATING); | |
817 | ||
818 | return; | |
819 | ||
820 | fail: | |
f2341e0a | 821 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapoff' task: %m"); |
50864457 | 822 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
823 | } |
824 | ||
825 | static int swap_start(Unit *u) { | |
37cf8fee | 826 | Swap *s = SWAP(u), *other; |
07299350 | 827 | int r; |
e04aad61 LP |
828 | |
829 | assert(s); | |
830 | ||
50864457 | 831 | /* We cannot fulfill this request right now, try again later please! */ |
d31ae548 FB |
832 | if (IN_SET(s->state, |
833 | SWAP_DEACTIVATING, | |
834 | SWAP_DEACTIVATING_SIGTERM, | |
50864457 | 835 | SWAP_DEACTIVATING_SIGKILL)) |
e04aad61 LP |
836 | return -EAGAIN; |
837 | ||
50864457 | 838 | /* Already on it! */ |
e04aad61 LP |
839 | if (s->state == SWAP_ACTIVATING) |
840 | return 0; | |
841 | ||
d31ae548 | 842 | assert(IN_SET(s->state, SWAP_DEAD, SWAP_FAILED)); |
e04aad61 | 843 | |
75f86906 | 844 | if (detect_container() > 0) |
a5c3034f LP |
845 | return -EPERM; |
846 | ||
37cf8fee LP |
847 | /* If there's a job for another swap unit for the same node |
848 | * running, then let's not dispatch this one for now, and wait | |
849 | * until that other job has finished. */ | |
850 | LIST_FOREACH_OTHERS(same_devnode, other, s) | |
851 | if (UNIT(other)->job && UNIT(other)->job->state == JOB_RUNNING) | |
852 | return -EAGAIN; | |
853 | ||
07299350 LP |
854 | r = unit_start_limit_test(u); |
855 | if (r < 0) { | |
856 | swap_enter_dead(s, SWAP_FAILURE_START_LIMIT_HIT); | |
857 | return r; | |
858 | } | |
859 | ||
4b58153d LP |
860 | r = unit_acquire_invocation_id(u); |
861 | if (r < 0) | |
862 | return r; | |
863 | ||
e1770af8 | 864 | s->result = SWAP_SUCCESS; |
906c06f6 | 865 | s->reset_accounting = true; |
5ad096b3 | 866 | |
e04aad61 | 867 | swap_enter_activating(s); |
82a2b6bb | 868 | return 1; |
07b0b134 ML |
869 | } |
870 | ||
871 | static int swap_stop(Unit *u) { | |
872 | Swap *s = SWAP(u); | |
07b0b134 ML |
873 | |
874 | assert(s); | |
875 | ||
50864457 LP |
876 | switch (s->state) { |
877 | ||
878 | case SWAP_DEACTIVATING: | |
879 | case SWAP_DEACTIVATING_SIGTERM: | |
880 | case SWAP_DEACTIVATING_SIGKILL: | |
881 | /* Already on it */ | |
e04aad61 | 882 | return 0; |
07b0b134 | 883 | |
50864457 LP |
884 | case SWAP_ACTIVATING: |
885 | case SWAP_ACTIVATING_DONE: | |
886 | /* There's a control process pending, directly enter kill mode */ | |
887 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_SUCCESS); | |
888 | return 0; | |
07b0b134 | 889 | |
50864457 LP |
890 | case SWAP_ACTIVE: |
891 | if (detect_container() > 0) | |
892 | return -EPERM; | |
a5c3034f | 893 | |
50864457 LP |
894 | swap_enter_deactivating(s); |
895 | return 1; | |
896 | ||
897 | default: | |
898 | assert_not_reached("Unexpected state."); | |
899 | } | |
07b0b134 ML |
900 | } |
901 | ||
902 | static int swap_serialize(Unit *u, FILE *f, FDSet *fds) { | |
903 | Swap *s = SWAP(u); | |
904 | ||
905 | assert(s); | |
906 | assert(f); | |
907 | assert(fds); | |
908 | ||
909 | unit_serialize_item(u, f, "state", swap_state_to_string(s->state)); | |
e1770af8 | 910 | unit_serialize_item(u, f, "result", swap_result_to_string(s->result)); |
e04aad61 LP |
911 | |
912 | if (s->control_pid > 0) | |
de0671ee | 913 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
e04aad61 LP |
914 | |
915 | if (s->control_command_id >= 0) | |
916 | unit_serialize_item(u, f, "control-command", swap_exec_command_to_string(s->control_command_id)); | |
07b0b134 ML |
917 | |
918 | return 0; | |
919 | } | |
920 | ||
921 | static int swap_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
922 | Swap *s = SWAP(u); | |
923 | ||
924 | assert(s); | |
925 | assert(fds); | |
926 | ||
927 | if (streq(key, "state")) { | |
928 | SwapState state; | |
929 | ||
646134dc ZJS |
930 | state = swap_state_from_string(value); |
931 | if (state < 0) | |
f2341e0a | 932 | log_unit_debug(u, "Failed to parse state value: %s", value); |
07b0b134 ML |
933 | else |
934 | s->deserialized_state = state; | |
e1770af8 LP |
935 | } else if (streq(key, "result")) { |
936 | SwapResult f; | |
937 | ||
938 | f = swap_result_from_string(value); | |
939 | if (f < 0) | |
f2341e0a | 940 | log_unit_debug(u, "Failed to parse result value: %s", value); |
e1770af8 LP |
941 | else if (f != SWAP_SUCCESS) |
942 | s->result = f; | |
e04aad61 LP |
943 | } else if (streq(key, "control-pid")) { |
944 | pid_t pid; | |
945 | ||
946 | if (parse_pid(value, &pid) < 0) | |
f2341e0a | 947 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
e04aad61 LP |
948 | else |
949 | s->control_pid = pid; | |
950 | ||
951 | } else if (streq(key, "control-command")) { | |
952 | SwapExecCommand id; | |
953 | ||
646134dc ZJS |
954 | id = swap_exec_command_from_string(value); |
955 | if (id < 0) | |
f2341e0a | 956 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
e04aad61 LP |
957 | else { |
958 | s->control_command_id = id; | |
959 | s->control_command = s->exec_command + id; | |
960 | } | |
07b0b134 | 961 | } else |
f2341e0a | 962 | log_unit_debug(u, "Unknown serialization key: %s", key); |
07b0b134 ML |
963 | |
964 | return 0; | |
965 | } | |
966 | ||
44a6b1b6 | 967 | _pure_ static UnitActiveState swap_active_state(Unit *u) { |
07b0b134 ML |
968 | assert(u); |
969 | ||
970 | return state_translation_table[SWAP(u)->state]; | |
971 | } | |
972 | ||
44a6b1b6 | 973 | _pure_ static const char *swap_sub_state_to_string(Unit *u) { |
07b0b134 ML |
974 | assert(u); |
975 | ||
976 | return swap_state_to_string(SWAP(u)->state); | |
977 | } | |
978 | ||
44a6b1b6 | 979 | _pure_ static bool swap_check_gc(Unit *u) { |
07b0b134 ML |
980 | Swap *s = SWAP(u); |
981 | ||
982 | assert(s); | |
983 | ||
6b1dc2bd | 984 | return s->from_proc_swaps; |
07b0b134 ML |
985 | } |
986 | ||
e04aad61 LP |
987 | static void swap_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
988 | Swap *s = SWAP(u); | |
e1770af8 | 989 | SwapResult f; |
e04aad61 LP |
990 | |
991 | assert(s); | |
992 | assert(pid >= 0); | |
993 | ||
994 | if (pid != s->control_pid) | |
995 | return; | |
996 | ||
997 | s->control_pid = 0; | |
998 | ||
1f0958f6 | 999 | if (is_clean_exit(code, status, EXIT_CLEAN_COMMAND, NULL)) |
e1770af8 LP |
1000 | f = SWAP_SUCCESS; |
1001 | else if (code == CLD_EXITED) | |
1002 | f = SWAP_FAILURE_EXIT_CODE; | |
1003 | else if (code == CLD_KILLED) | |
1004 | f = SWAP_FAILURE_SIGNAL; | |
1005 | else if (code == CLD_DUMPED) | |
1006 | f = SWAP_FAILURE_CORE_DUMP; | |
1007 | else | |
1008 | assert_not_reached("Unknown code"); | |
1009 | ||
a0fef983 | 1010 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 1011 | s->result = f; |
e04aad61 LP |
1012 | |
1013 | if (s->control_command) { | |
6ea832a2 | 1014 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
e1770af8 | 1015 | |
e04aad61 LP |
1016 | s->control_command = NULL; |
1017 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; | |
1018 | } | |
1019 | ||
f2341e0a LP |
1020 | log_unit_full(u, f == SWAP_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
1021 | "Swap process exited, code=%s status=%i", sigchld_code_to_string(code), status); | |
e04aad61 LP |
1022 | |
1023 | switch (s->state) { | |
1024 | ||
1025 | case SWAP_ACTIVATING: | |
5bcb0f2b | 1026 | case SWAP_ACTIVATING_DONE: |
e04aad61 | 1027 | |
50864457 | 1028 | if (f == SWAP_SUCCESS || s->from_proc_swaps) |
e1770af8 | 1029 | swap_enter_active(s, f); |
e04aad61 | 1030 | else |
e1770af8 | 1031 | swap_enter_dead(s, f); |
e04aad61 LP |
1032 | break; |
1033 | ||
1034 | case SWAP_DEACTIVATING: | |
1035 | case SWAP_DEACTIVATING_SIGKILL: | |
1036 | case SWAP_DEACTIVATING_SIGTERM: | |
1037 | ||
50864457 | 1038 | swap_enter_dead_or_active(s, f); |
e04aad61 LP |
1039 | break; |
1040 | ||
1041 | default: | |
1042 | assert_not_reached("Uh, control process died at wrong time."); | |
1043 | } | |
1044 | ||
1045 | /* Notify clients about changed exit status */ | |
1046 | unit_add_to_dbus_queue(u); | |
e04aad61 LP |
1047 | } |
1048 | ||
718db961 LP |
1049 | static int swap_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
1050 | Swap *s = SWAP(userdata); | |
e04aad61 LP |
1051 | |
1052 | assert(s); | |
718db961 | 1053 | assert(s->timer_event_source == source); |
e04aad61 LP |
1054 | |
1055 | switch (s->state) { | |
1056 | ||
1057 | case SWAP_ACTIVATING: | |
5bcb0f2b | 1058 | case SWAP_ACTIVATING_DONE: |
f2341e0a | 1059 | log_unit_warning(UNIT(s), "Activation timed out. Stopping."); |
50864457 | 1060 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1061 | break; |
1062 | ||
1063 | case SWAP_DEACTIVATING: | |
f2341e0a | 1064 | log_unit_warning(UNIT(s), "Deactivation timed out. Stopping."); |
e1770af8 | 1065 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1066 | break; |
1067 | ||
e04aad61 | 1068 | case SWAP_DEACTIVATING_SIGTERM: |
4819ff03 | 1069 | if (s->kill_context.send_sigkill) { |
50864457 | 1070 | log_unit_warning(UNIT(s), "Swap process timed out. Killing."); |
e1770af8 | 1071 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_FAILURE_TIMEOUT); |
ba035df2 | 1072 | } else { |
50864457 LP |
1073 | log_unit_warning(UNIT(s), "Swap process timed out. Skipping SIGKILL. Ignoring."); |
1074 | swap_enter_dead_or_active(s, SWAP_FAILURE_TIMEOUT); | |
ba035df2 | 1075 | } |
e04aad61 LP |
1076 | break; |
1077 | ||
e04aad61 | 1078 | case SWAP_DEACTIVATING_SIGKILL: |
f2341e0a | 1079 | log_unit_warning(UNIT(s), "Swap process still around after SIGKILL. Ignoring."); |
50864457 | 1080 | swap_enter_dead_or_active(s, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1081 | break; |
1082 | ||
1083 | default: | |
1084 | assert_not_reached("Timeout at wrong time."); | |
1085 | } | |
718db961 LP |
1086 | |
1087 | return 0; | |
e04aad61 LP |
1088 | } |
1089 | ||
1090 | static int swap_load_proc_swaps(Manager *m, bool set_flags) { | |
1091 | unsigned i; | |
1092 | int r = 0; | |
1093 | ||
1094 | assert(m); | |
1095 | ||
07b0b134 | 1096 | rewind(m->proc_swaps); |
bab45044 | 1097 | |
4e85aff4 | 1098 | (void) fscanf(m->proc_swaps, "%*s %*s %*s %*s %*s\n"); |
07b0b134 | 1099 | |
e04aad61 | 1100 | for (i = 1;; i++) { |
9fb3675e | 1101 | _cleanup_free_ char *dev = NULL, *d = NULL; |
07b0b134 ML |
1102 | int prio = 0, k; |
1103 | ||
646134dc ZJS |
1104 | k = fscanf(m->proc_swaps, |
1105 | "%ms " /* device/file */ | |
1106 | "%*s " /* type of swap */ | |
1107 | "%*s " /* swap size */ | |
1108 | "%*s " /* used */ | |
1109 | "%i\n", /* priority */ | |
1110 | &dev, &prio); | |
1111 | if (k != 2) { | |
07b0b134 | 1112 | if (k == EOF) |
4e85aff4 | 1113 | break; |
07b0b134 | 1114 | |
628c89cc | 1115 | log_warning("Failed to parse /proc/swaps:%u.", i); |
e04aad61 | 1116 | continue; |
07b0b134 | 1117 | } |
07b0b134 | 1118 | |
527b7a42 | 1119 | if (cunescape(dev, UNESCAPE_RELAX, &d) < 0) |
628c89cc LP |
1120 | return log_oom(); |
1121 | ||
1122 | device_found_node(m, d, true, DEVICE_FOUND_SWAP, set_flags); | |
4e85aff4 | 1123 | |
628c89cc | 1124 | k = swap_process_new(m, d, prio, set_flags); |
07b0b134 | 1125 | if (k < 0) |
e04aad61 | 1126 | r = k; |
07b0b134 ML |
1127 | } |
1128 | ||
e04aad61 LP |
1129 | return r; |
1130 | } | |
1131 | ||
718db961 LP |
1132 | static int swap_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1133 | Manager *m = userdata; | |
595ed347 | 1134 | Unit *u; |
4e434314 LP |
1135 | int r; |
1136 | ||
1137 | assert(m); | |
718db961 | 1138 | assert(revents & EPOLLPRI); |
4e434314 | 1139 | |
646134dc ZJS |
1140 | r = swap_load_proc_swaps(m, true); |
1141 | if (r < 0) { | |
da927ba9 | 1142 | log_error_errno(r, "Failed to reread /proc/swaps: %m"); |
e04aad61 LP |
1143 | |
1144 | /* Reset flags, just in case, for late calls */ | |
595ed347 MS |
1145 | LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_SWAP]) { |
1146 | Swap *swap = SWAP(u); | |
e04aad61 LP |
1147 | |
1148 | swap->is_active = swap->just_activated = false; | |
1149 | } | |
1150 | ||
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | manager_dispatch_load_queue(m); | |
1155 | ||
595ed347 MS |
1156 | LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_SWAP]) { |
1157 | Swap *swap = SWAP(u); | |
e04aad61 LP |
1158 | |
1159 | if (!swap->is_active) { | |
1160 | /* This has just been deactivated */ | |
1161 | ||
e04aad61 LP |
1162 | swap_unset_proc_swaps(swap); |
1163 | ||
1164 | switch (swap->state) { | |
1165 | ||
1166 | case SWAP_ACTIVE: | |
e1770af8 | 1167 | swap_enter_dead(swap, SWAP_SUCCESS); |
e04aad61 LP |
1168 | break; |
1169 | ||
1170 | default: | |
5bcb0f2b | 1171 | /* Fire again */ |
e04aad61 LP |
1172 | swap_set_state(swap, swap->state); |
1173 | break; | |
1174 | } | |
1175 | ||
628c89cc LP |
1176 | if (swap->what) |
1177 | device_found_node(m, swap->what, false, DEVICE_FOUND_SWAP, true); | |
1178 | ||
e04aad61 LP |
1179 | } else if (swap->just_activated) { |
1180 | ||
1181 | /* New swap entry */ | |
1182 | ||
1183 | switch (swap->state) { | |
1184 | ||
1185 | case SWAP_DEAD: | |
1186 | case SWAP_FAILED: | |
4b58153d | 1187 | (void) unit_acquire_invocation_id(UNIT(swap)); |
e1770af8 | 1188 | swap_enter_active(swap, SWAP_SUCCESS); |
e04aad61 LP |
1189 | break; |
1190 | ||
5bcb0f2b LP |
1191 | case SWAP_ACTIVATING: |
1192 | swap_set_state(swap, SWAP_ACTIVATING_DONE); | |
1193 | break; | |
1194 | ||
e04aad61 LP |
1195 | default: |
1196 | /* Nothing really changed, but let's | |
1197 | * issue an notification call | |
1198 | * nonetheless, in case somebody is | |
1199 | * waiting for this. */ | |
1200 | swap_set_state(swap, swap->state); | |
1201 | break; | |
1202 | } | |
1203 | } | |
1204 | ||
1205 | /* Reset the flags for later calls */ | |
1206 | swap->is_active = swap->just_activated = false; | |
1207 | } | |
1208 | ||
1209 | return 1; | |
1210 | } | |
1211 | ||
1212 | static Unit *swap_following(Unit *u) { | |
1213 | Swap *s = SWAP(u); | |
1214 | Swap *other, *first = NULL; | |
1215 | ||
1216 | assert(s); | |
1217 | ||
cdc89820 ZJS |
1218 | /* If the user configured the swap through /etc/fstab or |
1219 | * a device unit, follow that. */ | |
1220 | ||
1221 | if (s->from_fragment) | |
e04aad61 LP |
1222 | return NULL; |
1223 | ||
caac2704 | 1224 | LIST_FOREACH_OTHERS(same_devnode, other, s) |
cdc89820 ZJS |
1225 | if (other->from_fragment) |
1226 | return UNIT(other); | |
1227 | ||
b938cb90 | 1228 | /* Otherwise, make everybody follow the unit that's named after |
cdc89820 ZJS |
1229 | * the swap device in the kernel */ |
1230 | ||
1231 | if (streq_ptr(s->what, s->devnode)) | |
1232 | return NULL; | |
e04aad61 | 1233 | |
9670d583 LP |
1234 | LIST_FOREACH_AFTER(same_devnode, other, s) |
1235 | if (streq_ptr(other->what, other->devnode)) | |
e04aad61 LP |
1236 | return UNIT(other); |
1237 | ||
9670d583 LP |
1238 | LIST_FOREACH_BEFORE(same_devnode, other, s) { |
1239 | if (streq_ptr(other->what, other->devnode)) | |
e04aad61 LP |
1240 | return UNIT(other); |
1241 | ||
1242 | first = other; | |
1243 | } | |
1244 | ||
cdc89820 | 1245 | /* Fall back to the first on the list */ |
e04aad61 | 1246 | return UNIT(first); |
07b0b134 ML |
1247 | } |
1248 | ||
6210e7fc | 1249 | static int swap_following_set(Unit *u, Set **_set) { |
5bcb0f2b | 1250 | Swap *s = SWAP(u), *other; |
6210e7fc LP |
1251 | Set *set; |
1252 | int r; | |
1253 | ||
1254 | assert(s); | |
1255 | assert(_set); | |
1256 | ||
9670d583 | 1257 | if (LIST_JUST_US(same_devnode, s)) { |
6210e7fc LP |
1258 | *_set = NULL; |
1259 | return 0; | |
1260 | } | |
1261 | ||
d5099efc | 1262 | set = set_new(NULL); |
5bcb0f2b | 1263 | if (!set) |
6210e7fc LP |
1264 | return -ENOMEM; |
1265 | ||
caac2704 | 1266 | LIST_FOREACH_OTHERS(same_devnode, other, s) { |
5bcb0f2b LP |
1267 | r = set_put(set, other); |
1268 | if (r < 0) | |
6210e7fc | 1269 | goto fail; |
5bcb0f2b | 1270 | } |
6210e7fc LP |
1271 | |
1272 | *_set = set; | |
1273 | return 1; | |
1274 | ||
1275 | fail: | |
1276 | set_free(set); | |
1277 | return r; | |
1278 | } | |
1279 | ||
07b0b134 ML |
1280 | static void swap_shutdown(Manager *m) { |
1281 | assert(m); | |
1282 | ||
718db961 LP |
1283 | m->swap_event_source = sd_event_source_unref(m->swap_event_source); |
1284 | ||
74ca738f | 1285 | m->proc_swaps = safe_fclose(m->proc_swaps); |
e04aad61 | 1286 | |
525d3cc7 | 1287 | m->swaps_by_devnode = hashmap_free(m->swaps_by_devnode); |
07b0b134 ML |
1288 | } |
1289 | ||
ba64af90 | 1290 | static void swap_enumerate(Manager *m) { |
07b0b134 | 1291 | int r; |
9670d583 | 1292 | |
07b0b134 ML |
1293 | assert(m); |
1294 | ||
4e434314 | 1295 | if (!m->proc_swaps) { |
646134dc | 1296 | m->proc_swaps = fopen("/proc/swaps", "re"); |
ba64af90 LP |
1297 | if (!m->proc_swaps) { |
1298 | if (errno == ENOENT) | |
1299 | log_debug("Not swap enabled, skipping enumeration"); | |
1300 | else | |
1301 | log_error_errno(errno, "Failed to open /proc/swaps: %m"); | |
1302 | ||
1303 | return; | |
1304 | } | |
4e434314 | 1305 | |
151b9b96 | 1306 | r = sd_event_add_io(m->event, &m->swap_event_source, fileno(m->proc_swaps), EPOLLPRI, swap_dispatch_io, m); |
ba64af90 LP |
1307 | if (r < 0) { |
1308 | log_error_errno(r, "Failed to watch /proc/swaps: %m"); | |
29083707 | 1309 | goto fail; |
ba64af90 | 1310 | } |
29083707 LP |
1311 | |
1312 | /* Dispatch this before we dispatch SIGCHLD, so that | |
1313 | * we always get the events from /proc/swaps before | |
1314 | * the SIGCHLD of /sbin/swapon. */ | |
1315 | r = sd_event_source_set_priority(m->swap_event_source, -10); | |
ba64af90 LP |
1316 | if (r < 0) { |
1317 | log_error_errno(r, "Failed to change /proc/swaps priority: %m"); | |
718db961 | 1318 | goto fail; |
ba64af90 | 1319 | } |
7dfbe2e3 TG |
1320 | |
1321 | (void) sd_event_source_set_description(m->swap_event_source, "swap-proc"); | |
4e434314 LP |
1322 | } |
1323 | ||
646134dc ZJS |
1324 | r = swap_load_proc_swaps(m, false); |
1325 | if (r < 0) | |
718db961 LP |
1326 | goto fail; |
1327 | ||
ba64af90 | 1328 | return; |
07b0b134 | 1329 | |
718db961 LP |
1330 | fail: |
1331 | swap_shutdown(m); | |
07b0b134 ML |
1332 | } |
1333 | ||
628c89cc | 1334 | int swap_process_device_new(Manager *m, struct udev_device *dev) { |
9670d583 LP |
1335 | struct udev_list_entry *item = NULL, *first = NULL; |
1336 | _cleanup_free_ char *e = NULL; | |
1337 | const char *dn; | |
cabf58b2 | 1338 | Unit *u; |
9670d583 LP |
1339 | int r = 0; |
1340 | ||
1341 | assert(m); | |
1342 | assert(dev); | |
1343 | ||
1344 | dn = udev_device_get_devnode(dev); | |
1345 | if (!dn) | |
1346 | return 0; | |
1347 | ||
7410616c LP |
1348 | r = unit_name_from_path(dn, ".swap", &e); |
1349 | if (r < 0) | |
1350 | return r; | |
9670d583 | 1351 | |
cabf58b2 FB |
1352 | u = manager_get_unit(m, e); |
1353 | if (u) | |
1354 | r = swap_set_devnode(SWAP(u), dn); | |
9670d583 LP |
1355 | |
1356 | first = udev_device_get_devlinks_list_entry(dev); | |
1357 | udev_list_entry_foreach(item, first) { | |
1358 | _cleanup_free_ char *n = NULL; | |
7410616c | 1359 | int q; |
9670d583 | 1360 | |
7410616c LP |
1361 | q = unit_name_from_path(udev_list_entry_get_name(item), ".swap", &n); |
1362 | if (q < 0) | |
1363 | return q; | |
9670d583 | 1364 | |
cabf58b2 FB |
1365 | u = manager_get_unit(m, n); |
1366 | if (u) { | |
1367 | q = swap_set_devnode(SWAP(u), dn); | |
9670d583 LP |
1368 | if (q < 0) |
1369 | r = q; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | return r; | |
1374 | } | |
1375 | ||
628c89cc | 1376 | int swap_process_device_remove(Manager *m, struct udev_device *dev) { |
9670d583 LP |
1377 | const char *dn; |
1378 | int r = 0; | |
1379 | Swap *s; | |
1380 | ||
1381 | dn = udev_device_get_devnode(dev); | |
1382 | if (!dn) | |
1383 | return 0; | |
1384 | ||
1385 | while ((s = hashmap_get(m->swaps_by_devnode, dn))) { | |
1386 | int q; | |
1387 | ||
1388 | q = swap_set_devnode(s, NULL); | |
1389 | if (q < 0) | |
1390 | r = q; | |
1391 | } | |
1392 | ||
1393 | return r; | |
1394 | } | |
1395 | ||
fdf20a31 | 1396 | static void swap_reset_failed(Unit *u) { |
5632e374 LP |
1397 | Swap *s = SWAP(u); |
1398 | ||
1399 | assert(s); | |
1400 | ||
fdf20a31 | 1401 | if (s->state == SWAP_FAILED) |
5632e374 | 1402 | swap_set_state(s, SWAP_DEAD); |
e04aad61 | 1403 | |
e1770af8 | 1404 | s->result = SWAP_SUCCESS; |
5632e374 LP |
1405 | } |
1406 | ||
718db961 | 1407 | static int swap_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
814cc562 | 1408 | return unit_kill_common(u, who, signo, -1, SWAP(u)->control_pid, error); |
8a0867d6 LP |
1409 | } |
1410 | ||
7a7821c8 | 1411 | static int swap_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 1412 | Swap *s = SWAP(u); |
7a7821c8 | 1413 | usec_t t; |
68db7a3b ZJS |
1414 | int r; |
1415 | ||
1416 | if (!s->timer_event_source) | |
1417 | return 0; | |
1418 | ||
7a7821c8 | 1419 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
1420 | if (r < 0) |
1421 | return r; | |
7a7821c8 LP |
1422 | if (t == USEC_INFINITY) |
1423 | return 0; | |
68db7a3b | 1424 | |
7a7821c8 | 1425 | *timeout = t; |
68db7a3b ZJS |
1426 | return 1; |
1427 | } | |
1428 | ||
1c2e9646 | 1429 | static bool swap_supported(void) { |
0faacd47 LP |
1430 | static int supported = -1; |
1431 | ||
1432 | /* If swap support is not available in the kernel, or we are | |
1433 | * running in a container we don't support swap units, and any | |
1434 | * attempts to starting one should fail immediately. */ | |
1435 | ||
1436 | if (supported < 0) | |
1437 | supported = | |
1438 | access("/proc/swaps", F_OK) >= 0 && | |
75f86906 | 1439 | detect_container() <= 0; |
0faacd47 LP |
1440 | |
1441 | return supported; | |
1442 | } | |
1443 | ||
291d565a LP |
1444 | static int swap_control_pid(Unit *u) { |
1445 | Swap *s = SWAP(u); | |
1446 | ||
1447 | assert(s); | |
1448 | ||
1449 | return s->control_pid; | |
1450 | } | |
1451 | ||
e04aad61 LP |
1452 | static const char* const swap_exec_command_table[_SWAP_EXEC_COMMAND_MAX] = { |
1453 | [SWAP_EXEC_ACTIVATE] = "ExecActivate", | |
1454 | [SWAP_EXEC_DEACTIVATE] = "ExecDeactivate", | |
1455 | }; | |
1456 | ||
1457 | DEFINE_STRING_TABLE_LOOKUP(swap_exec_command, SwapExecCommand); | |
1458 | ||
e1770af8 LP |
1459 | static const char* const swap_result_table[_SWAP_RESULT_MAX] = { |
1460 | [SWAP_SUCCESS] = "success", | |
1461 | [SWAP_FAILURE_RESOURCES] = "resources", | |
1462 | [SWAP_FAILURE_TIMEOUT] = "timeout", | |
1463 | [SWAP_FAILURE_EXIT_CODE] = "exit-code", | |
1464 | [SWAP_FAILURE_SIGNAL] = "signal", | |
07299350 LP |
1465 | [SWAP_FAILURE_CORE_DUMP] = "core-dump", |
1466 | [SWAP_FAILURE_START_LIMIT_HIT] = "start-limit-hit", | |
e1770af8 LP |
1467 | }; |
1468 | ||
1469 | DEFINE_STRING_TABLE_LOOKUP(swap_result, SwapResult); | |
1470 | ||
07b0b134 | 1471 | const UnitVTable swap_vtable = { |
7d17cfbc | 1472 | .object_size = sizeof(Swap), |
718db961 LP |
1473 | .exec_context_offset = offsetof(Swap, exec_context), |
1474 | .cgroup_context_offset = offsetof(Swap, cgroup_context), | |
1475 | .kill_context_offset = offsetof(Swap, kill_context), | |
613b411c | 1476 | .exec_runtime_offset = offsetof(Swap, exec_runtime), |
29206d46 | 1477 | .dynamic_creds_offset = offsetof(Swap, dynamic_creds), |
3ef63c31 | 1478 | |
f975e971 LP |
1479 | .sections = |
1480 | "Unit\0" | |
1481 | "Swap\0" | |
1482 | "Install\0", | |
4ad49000 | 1483 | .private_section = "Swap", |
71645aca | 1484 | |
4e85aff4 | 1485 | .init = swap_init, |
07b0b134 | 1486 | .load = swap_load, |
6e620bec | 1487 | .done = swap_done, |
07b0b134 ML |
1488 | |
1489 | .coldplug = swap_coldplug, | |
1490 | ||
1491 | .dump = swap_dump, | |
1492 | ||
1493 | .start = swap_start, | |
1494 | .stop = swap_stop, | |
1495 | ||
8a0867d6 LP |
1496 | .kill = swap_kill, |
1497 | ||
68db7a3b ZJS |
1498 | .get_timeout = swap_get_timeout, |
1499 | ||
07b0b134 ML |
1500 | .serialize = swap_serialize, |
1501 | .deserialize_item = swap_deserialize_item, | |
1502 | ||
1503 | .active_state = swap_active_state, | |
1504 | .sub_state_to_string = swap_sub_state_to_string, | |
1505 | ||
1506 | .check_gc = swap_check_gc, | |
1507 | ||
e04aad61 | 1508 | .sigchld_event = swap_sigchld_event, |
e04aad61 LP |
1509 | |
1510 | .reset_failed = swap_reset_failed, | |
1511 | ||
291d565a LP |
1512 | .control_pid = swap_control_pid, |
1513 | ||
718db961 | 1514 | .bus_vtable = bus_swap_vtable, |
74c964d3 LP |
1515 | .bus_set_property = bus_swap_set_property, |
1516 | .bus_commit_properties = bus_swap_commit_properties, | |
07b0b134 | 1517 | |
e04aad61 | 1518 | .following = swap_following, |
6210e7fc | 1519 | .following_set = swap_following_set, |
5632e374 | 1520 | |
6e620bec | 1521 | .enumerate = swap_enumerate, |
c6918296 | 1522 | .shutdown = swap_shutdown, |
0faacd47 | 1523 | .supported = swap_supported, |
c6918296 MS |
1524 | |
1525 | .status_message_formats = { | |
1526 | .starting_stopping = { | |
1527 | [0] = "Activating swap %s...", | |
1528 | [1] = "Deactivating swap %s...", | |
1529 | }, | |
1530 | .finished_start_job = { | |
1531 | [JOB_DONE] = "Activated swap %s.", | |
1532 | [JOB_FAILED] = "Failed to activate swap %s.", | |
c6918296 MS |
1533 | [JOB_TIMEOUT] = "Timed out activating swap %s.", |
1534 | }, | |
1535 | .finished_stop_job = { | |
1536 | [JOB_DONE] = "Deactivated swap %s.", | |
1537 | [JOB_FAILED] = "Failed deactivating swap %s.", | |
1538 | [JOB_TIMEOUT] = "Timed out deactivating swap %s.", | |
1539 | }, | |
1540 | }, | |
07b0b134 | 1541 | }; |