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Commit | Line | Data |
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a54d5262 DW |
1 | /* |
2 | * mdmon - monitor external metadata arrays | |
3 | * | |
4 | * Copyright (C) 2007-2008 Neil Brown <neilb@suse.de> | |
5 | * Copyright (C) 2007-2008 Intel Corporation | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms and conditions of the GNU General Public License, | |
9 | * version 2, as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
19 | */ | |
549e9569 NB |
20 | |
21 | #include "mdadm.h" | |
22 | #include "mdmon.h" | |
4d43913c | 23 | #include <sys/syscall.h> |
549e9569 | 24 | #include <sys/select.h> |
1ed3f387 | 25 | #include <signal.h> |
549e9569 NB |
26 | |
27 | static char *array_states[] = { | |
28 | "clear", "inactive", "suspended", "readonly", "read-auto", | |
29 | "clean", "active", "write-pending", "active-idle", NULL }; | |
30 | static char *sync_actions[] = { | |
31 | "idle", "reshape", "resync", "recover", "check", "repair", NULL | |
32 | }; | |
33 | ||
34 | static int write_attr(char *attr, int fd) | |
35 | { | |
36 | return write(fd, attr, strlen(attr)); | |
37 | } | |
38 | ||
39 | static void add_fd(fd_set *fds, int *maxfd, int fd) | |
40 | { | |
41 | if (fd < 0) | |
42 | return; | |
43 | if (fd > *maxfd) | |
44 | *maxfd = fd; | |
45 | FD_SET(fd, fds); | |
46 | } | |
47 | ||
48 | static int read_attr(char *buf, int len, int fd) | |
49 | { | |
50 | int n; | |
51 | ||
52 | if (fd < 0) { | |
53 | buf[0] = 0; | |
54 | return 0; | |
55 | } | |
56 | lseek(fd, 0, 0); | |
57 | n = read(fd, buf, len - 1); | |
58 | ||
59 | if (n <= 0) { | |
60 | buf[0] = 0; | |
61 | return 0; | |
62 | } | |
63 | buf[n] = 0; | |
64 | if (buf[n-1] == '\n') | |
65 | buf[n-1] = 0; | |
66 | return n; | |
67 | } | |
68 | ||
103f2410 | 69 | int get_resync_start(struct active_array *a) |
c052ba30 DW |
70 | { |
71 | char buf[30]; | |
72 | int n; | |
73 | ||
74 | n = read_attr(buf, 30, a->resync_start_fd); | |
75 | if (n <= 0) | |
76 | return n; | |
77 | ||
78 | a->resync_start = strtoull(buf, NULL, 10); | |
79 | ||
80 | return 1; | |
81 | } | |
549e9569 | 82 | |
549e9569 NB |
83 | |
84 | static enum array_state read_state(int fd) | |
85 | { | |
86 | char buf[20]; | |
87 | int n = read_attr(buf, 20, fd); | |
88 | ||
89 | if (n <= 0) | |
90 | return bad_word; | |
1770662b | 91 | return (enum array_state) sysfs_match_word(buf, array_states); |
549e9569 NB |
92 | } |
93 | ||
94 | static enum sync_action read_action( int fd) | |
95 | { | |
96 | char buf[20]; | |
97 | int n = read_attr(buf, 20, fd); | |
98 | ||
99 | if (n <= 0) | |
100 | return bad_action; | |
1770662b | 101 | return (enum sync_action) sysfs_match_word(buf, sync_actions); |
549e9569 NB |
102 | } |
103 | ||
549e9569 NB |
104 | int read_dev_state(int fd) |
105 | { | |
106 | char buf[60]; | |
107 | int n = read_attr(buf, 60, fd); | |
108 | char *cp; | |
109 | int rv = 0; | |
110 | ||
111 | if (n <= 0) | |
112 | return 0; | |
113 | ||
114 | cp = buf; | |
115 | while (cp) { | |
1770662b | 116 | if (sysfs_attr_match(cp, "faulty")) |
549e9569 | 117 | rv |= DS_FAULTY; |
1770662b | 118 | if (sysfs_attr_match(cp, "in_sync")) |
549e9569 | 119 | rv |= DS_INSYNC; |
1770662b | 120 | if (sysfs_attr_match(cp, "write_mostly")) |
549e9569 | 121 | rv |= DS_WRITE_MOSTLY; |
1770662b | 122 | if (sysfs_attr_match(cp, "spare")) |
549e9569 | 123 | rv |= DS_SPARE; |
1770662b | 124 | if (sysfs_attr_match(cp, "blocked")) |
8d45d196 | 125 | rv |= DS_BLOCKED; |
549e9569 NB |
126 | cp = strchr(cp, ','); |
127 | if (cp) | |
128 | cp++; | |
129 | } | |
130 | return rv; | |
131 | } | |
132 | ||
1ed3f387 NB |
133 | static void signal_manager(void) |
134 | { | |
4d43913c NB |
135 | /* tgkill(getpid(), mon_tid, SIGUSR1); */ |
136 | int pid = getpid(); | |
137 | syscall(SYS_tgkill, pid, mgr_tid, SIGUSR1); | |
1ed3f387 | 138 | } |
549e9569 NB |
139 | |
140 | /* Monitor a set of active md arrays - all of which share the | |
141 | * same metadata - and respond to events that require | |
142 | * metadata update. | |
143 | * | |
144 | * New arrays are detected by another thread which allocates | |
145 | * required memory and attaches the data structure to our list. | |
146 | * | |
147 | * Events: | |
148 | * Array stops. | |
149 | * This is detected by array_state going to 'clear' or 'inactive'. | |
150 | * while we thought it was active. | |
151 | * Response is to mark metadata as clean and 'clear' the array(??) | |
152 | * write-pending | |
153 | * array_state if 'write-pending' | |
154 | * We mark metadata as 'dirty' then set array to 'active'. | |
155 | * active_idle | |
156 | * Either ignore, or mark clean, then mark metadata as clean. | |
157 | * | |
158 | * device fails | |
159 | * detected by rd-N/state reporting "faulty" | |
8d45d196 DW |
160 | * mark device as 'failed' in metadata, let the kernel release the |
161 | * device by writing '-blocked' to rd/state, and finally write 'remove' to | |
0af73f61 DW |
162 | * rd/state. Before a disk can be replaced it must be failed and removed |
163 | * from all container members, this will be preemptive for the other | |
164 | * arrays... safe? | |
549e9569 NB |
165 | * |
166 | * sync completes | |
167 | * sync_action was 'resync' and becomes 'idle' and resync_start becomes | |
168 | * MaxSector | |
169 | * Notify metadata that sync is complete. | |
549e9569 NB |
170 | * |
171 | * recovery completes | |
172 | * sync_action changes from 'recover' to 'idle' | |
173 | * Check each device state and mark metadata if 'faulty' or 'in_sync'. | |
549e9569 NB |
174 | * |
175 | * deal with resync | |
c052ba30 DW |
176 | * This only happens on finding a new array... mdadm will have set |
177 | * 'resync_start' to the correct value. If 'resync_start' indicates that an | |
178 | * resync needs to occur set the array to the 'active' state rather than the | |
179 | * initial read-auto state. | |
549e9569 NB |
180 | * |
181 | * | |
182 | * | |
183 | * We wait for a change (poll/select) on array_state, sync_action, and | |
184 | * each rd-X/state file. | |
185 | * When we get any change, we check everything. So read each state file, | |
186 | * then decide what to do. | |
187 | * | |
188 | * The core action is to write new metadata to all devices in the array. | |
189 | * This is done at most once on any wakeup. | |
190 | * After that we might: | |
191 | * - update the array_state | |
192 | * - set the role of some devices. | |
193 | * - request a sync_action | |
194 | * | |
195 | */ | |
196 | ||
197 | static int read_and_act(struct active_array *a) | |
198 | { | |
6c3fb95c | 199 | int check_degraded = 0; |
2a0bb19e | 200 | int deactivate = 0; |
549e9569 | 201 | struct mdinfo *mdi; |
140d3685 | 202 | int dirty = 0; |
549e9569 NB |
203 | |
204 | a->next_state = bad_word; | |
205 | a->next_action = bad_action; | |
206 | ||
207 | a->curr_state = read_state(a->info.state_fd); | |
208 | a->curr_action = read_action(a->action_fd); | |
209 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) { | |
210 | mdi->next_state = 0; | |
57632f4a | 211 | if (mdi->state_fd >= 0) |
8d45d196 | 212 | mdi->curr_state = read_dev_state(mdi->state_fd); |
549e9569 NB |
213 | } |
214 | ||
215 | if (a->curr_state <= inactive && | |
216 | a->prev_state > inactive) { | |
217 | /* array has been stopped */ | |
33af8567 | 218 | get_resync_start(a); |
ed9d66aa | 219 | a->container->ss->set_array_state(a, 1); |
549e9569 | 220 | a->next_state = clear; |
2a0bb19e | 221 | deactivate = 1; |
549e9569 NB |
222 | } |
223 | if (a->curr_state == write_pending) { | |
ed9d66aa NB |
224 | get_resync_start(a); |
225 | a->container->ss->set_array_state(a, 0); | |
549e9569 | 226 | a->next_state = active; |
140d3685 | 227 | dirty = 1; |
549e9569 NB |
228 | } |
229 | if (a->curr_state == active_idle) { | |
d797a062 DW |
230 | /* Set array to 'clean' FIRST, then mark clean |
231 | * in the metadata | |
549e9569 | 232 | */ |
d797a062 | 233 | a->next_state = clean; |
140d3685 | 234 | dirty = 1; |
d797a062 DW |
235 | } |
236 | if (a->curr_state == clean) { | |
237 | get_resync_start(a); | |
238 | a->container->ss->set_array_state(a, 1); | |
549e9569 | 239 | } |
140d3685 DW |
240 | if (a->curr_state == active || |
241 | a->curr_state == suspended || | |
242 | a->curr_state == bad_word) | |
243 | dirty = 1; | |
549e9569 | 244 | if (a->curr_state == readonly) { |
e9dd1598 N |
245 | /* Well, I'm ready to handle things. If readonly |
246 | * wasn't requested, transition to read-auto. | |
549e9569 | 247 | */ |
e9dd1598 N |
248 | char buf[64]; |
249 | read_attr(buf, sizeof(buf), a->metadata_fd); | |
250 | if (strncmp(buf, "external:-", 10) == 0) { | |
251 | /* explicit request for readonly array. Leave it alone */ | |
252 | ; | |
253 | } else { | |
254 | get_resync_start(a); | |
255 | if (a->container->ss->set_array_state(a, 2)) | |
256 | a->next_state = read_auto; /* array is clean */ | |
140d3685 | 257 | else { |
e9dd1598 | 258 | a->next_state = active; /* Now active for recovery etc */ |
140d3685 DW |
259 | dirty = 1; |
260 | } | |
e9dd1598 | 261 | } |
549e9569 NB |
262 | } |
263 | ||
00e02142 DW |
264 | if (!deactivate && |
265 | a->curr_action == idle && | |
549e9569 | 266 | a->prev_action == resync) { |
4e5528c6 NB |
267 | /* A resync has finished. The endpoint is recorded in |
268 | * 'sync_start'. We don't update the metadata | |
269 | * until the array goes inactive or readonly though. | |
270 | * Just check if we need to fiddle spares. | |
271 | */ | |
77402e51 | 272 | get_resync_start(a); |
0c0c44db | 273 | a->container->ss->set_array_state(a, a->curr_state <= clean); |
549e9569 NB |
274 | check_degraded = 1; |
275 | } | |
276 | ||
00e02142 DW |
277 | if (!deactivate && |
278 | a->curr_action == idle && | |
549e9569 | 279 | a->prev_action == recover) { |
0a6bdbee DW |
280 | /* A recovery has finished. Some disks may be in sync now, |
281 | * and the array may no longer be degraded | |
282 | */ | |
549e9569 | 283 | for (mdi = a->info.devs ; mdi ; mdi = mdi->next) { |
8d45d196 DW |
284 | a->container->ss->set_disk(a, mdi->disk.raid_disk, |
285 | mdi->curr_state); | |
549e9569 NB |
286 | if (! (mdi->curr_state & DS_INSYNC)) |
287 | check_degraded = 1; | |
288 | } | |
289 | } | |
290 | ||
92967543 DW |
291 | /* Check for failures and if found: |
292 | * 1/ Record the failure in the metadata and unblock the device. | |
293 | * FIXME update the kernel to stop notifying on failed drives when | |
294 | * the array is readonly and we have cleared 'blocked' | |
295 | * 2/ Try to remove the device if the array is writable, or can be | |
296 | * made writable. | |
297 | */ | |
549e9569 NB |
298 | for (mdi = a->info.devs ; mdi ; mdi = mdi->next) { |
299 | if (mdi->curr_state & DS_FAULTY) { | |
8d45d196 DW |
300 | a->container->ss->set_disk(a, mdi->disk.raid_disk, |
301 | mdi->curr_state); | |
549e9569 | 302 | check_degraded = 1; |
92967543 DW |
303 | mdi->next_state |= DS_UNBLOCK; |
304 | if (a->curr_state == read_auto) { | |
305 | a->container->ss->set_array_state(a, 0); | |
306 | a->next_state = active; | |
307 | } | |
308 | if (a->curr_state > readonly) | |
309 | mdi->next_state |= DS_REMOVE; | |
549e9569 NB |
310 | } |
311 | } | |
312 | ||
2e735d19 | 313 | a->container->ss->sync_metadata(a->container); |
4065aa81 DW |
314 | dprintf("%s(%d): state:%s action:%s next(", __func__, a->info.container_member, |
315 | array_states[a->curr_state], sync_actions[a->curr_action]); | |
549e9569 NB |
316 | |
317 | /* Effect state changes in the array */ | |
4e6e574a DW |
318 | if (a->next_state != bad_word) { |
319 | dprintf(" state:%s", array_states[a->next_state]); | |
549e9569 | 320 | write_attr(array_states[a->next_state], a->info.state_fd); |
4e6e574a DW |
321 | } |
322 | if (a->next_action != bad_action) { | |
549e9569 | 323 | write_attr(sync_actions[a->next_action], a->action_fd); |
4065aa81 | 324 | dprintf(" action:%s", sync_actions[a->next_action]); |
4e6e574a | 325 | } |
549e9569 | 326 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) { |
92967543 DW |
327 | if (mdi->next_state & DS_UNBLOCK) { |
328 | dprintf(" %d:-blocked", mdi->disk.raid_disk); | |
329 | write_attr("-blocked", mdi->state_fd); | |
330 | } | |
331 | ||
332 | if ((mdi->next_state & DS_REMOVE) && mdi->state_fd >= 0) { | |
57632f4a | 333 | int remove_result; |
8d45d196 | 334 | |
8d45d196 DW |
335 | /* the kernel may not be able to immediately remove the |
336 | * disk, we can simply wait until the next event to try | |
337 | * again. | |
338 | */ | |
57632f4a NB |
339 | remove_result = write_attr("remove", mdi->state_fd); |
340 | if (remove_result > 0) { | |
4e6e574a | 341 | dprintf(" %d:removed", mdi->disk.raid_disk); |
8d45d196 DW |
342 | close(mdi->state_fd); |
343 | mdi->state_fd = -1; | |
344 | } | |
345 | } | |
4e6e574a | 346 | if (mdi->next_state & DS_INSYNC) { |
549e9569 | 347 | write_attr("+in_sync", mdi->state_fd); |
4e6e574a DW |
348 | dprintf(" %d:+in_sync", mdi->disk.raid_disk); |
349 | } | |
549e9569 | 350 | } |
4e6e574a | 351 | dprintf(" )\n"); |
549e9569 NB |
352 | |
353 | /* move curr_ to prev_ */ | |
354 | a->prev_state = a->curr_state; | |
355 | ||
356 | a->prev_action = a->curr_action; | |
357 | ||
358 | for (mdi = a->info.devs; mdi ; mdi = mdi->next) { | |
359 | mdi->prev_state = mdi->curr_state; | |
360 | mdi->next_state = 0; | |
361 | } | |
362 | ||
7e1432fb NB |
363 | if (check_degraded) { |
364 | /* manager will do the actual check */ | |
365 | a->check_degraded = 1; | |
366 | signal_manager(); | |
367 | } | |
368 | ||
2a0bb19e DW |
369 | if (deactivate) |
370 | a->container = NULL; | |
371 | ||
140d3685 | 372 | return dirty; |
549e9569 NB |
373 | } |
374 | ||
0af73f61 DW |
375 | static struct mdinfo * |
376 | find_device(struct active_array *a, int major, int minor) | |
377 | { | |
378 | struct mdinfo *mdi; | |
379 | ||
380 | for (mdi = a->info.devs ; mdi ; mdi = mdi->next) | |
381 | if (mdi->disk.major == major && mdi->disk.minor == minor) | |
382 | return mdi; | |
383 | ||
384 | return NULL; | |
385 | } | |
386 | ||
387 | static void reconcile_failed(struct active_array *aa, struct mdinfo *failed) | |
388 | { | |
389 | struct active_array *a; | |
390 | struct mdinfo *victim; | |
391 | ||
392 | for (a = aa; a; a = a->next) { | |
393 | if (!a->container) | |
394 | continue; | |
395 | victim = find_device(a, failed->disk.major, failed->disk.minor); | |
396 | if (!victim) | |
397 | continue; | |
398 | ||
399 | if (!(victim->curr_state & DS_FAULTY)) | |
400 | write_attr("faulty", victim->state_fd); | |
401 | } | |
402 | } | |
403 | ||
4e6e574a DW |
404 | #ifdef DEBUG |
405 | static void dprint_wake_reasons(fd_set *fds) | |
406 | { | |
407 | int i; | |
408 | char proc_path[256]; | |
409 | char link[256]; | |
410 | char *basename; | |
411 | int rv; | |
412 | ||
413 | fprintf(stderr, "monitor: wake ( "); | |
414 | for (i = 0; i < FD_SETSIZE; i++) { | |
415 | if (FD_ISSET(i, fds)) { | |
416 | sprintf(proc_path, "/proc/%d/fd/%d", | |
417 | (int) getpid(), i); | |
418 | ||
419 | rv = readlink(proc_path, link, sizeof(link) - 1); | |
420 | if (rv < 0) { | |
421 | fprintf(stderr, "%d:unknown ", i); | |
422 | continue; | |
423 | } | |
424 | link[rv] = '\0'; | |
425 | basename = strrchr(link, '/'); | |
426 | fprintf(stderr, "%d:%s ", | |
427 | i, basename ? ++basename : link); | |
428 | } | |
429 | } | |
430 | fprintf(stderr, ")\n"); | |
431 | } | |
432 | #endif | |
433 | ||
1eb252b8 N |
434 | int monitor_loop_cnt; |
435 | ||
4d43913c | 436 | static int wait_and_act(struct supertype *container, int nowait) |
549e9569 NB |
437 | { |
438 | fd_set rfds; | |
439 | int maxfd = 0; | |
e0d6609f | 440 | struct active_array **aap = &container->arrays; |
1ed3f387 | 441 | struct active_array *a, **ap; |
549e9569 | 442 | int rv; |
0af73f61 | 443 | struct mdinfo *mdi; |
6144ed44 | 444 | static unsigned int dirty_arrays = ~0; /* start at some non-zero value */ |
549e9569 NB |
445 | |
446 | FD_ZERO(&rfds); | |
447 | ||
1ed3f387 NB |
448 | for (ap = aap ; *ap ;) { |
449 | a = *ap; | |
450 | /* once an array has been deactivated we want to | |
451 | * ask the manager to discard it. | |
2a0bb19e | 452 | */ |
1ed3f387 NB |
453 | if (!a->container) { |
454 | if (discard_this) { | |
455 | ap = &(*ap)->next; | |
456 | continue; | |
457 | } | |
458 | *ap = a->next; | |
459 | a->next = NULL; | |
460 | discard_this = a; | |
461 | signal_manager(); | |
2a0bb19e | 462 | continue; |
1ed3f387 | 463 | } |
2a0bb19e | 464 | |
549e9569 NB |
465 | add_fd(&rfds, &maxfd, a->info.state_fd); |
466 | add_fd(&rfds, &maxfd, a->action_fd); | |
467 | for (mdi = a->info.devs ; mdi ; mdi = mdi->next) | |
468 | add_fd(&rfds, &maxfd, mdi->state_fd); | |
1ed3f387 NB |
469 | |
470 | ap = &(*ap)->next; | |
549e9569 NB |
471 | } |
472 | ||
6144ed44 DW |
473 | if (manager_ready && (*aap == NULL || (sigterm && !dirty_arrays))) { |
474 | /* No interesting arrays, or we have been told to | |
475 | * terminate and everything is clean. Lets see about | |
476 | * exiting. Note that blocking at this point is not a | |
477 | * problem as there are no active arrays, there is | |
478 | * nothing that we need to be ready to do. | |
e0d6609f | 479 | */ |
e8a70c89 | 480 | int fd = open_dev_excl(container->devnum); |
e0d6609f NB |
481 | if (fd >= 0 || errno != EBUSY) { |
482 | /* OK, we are safe to leave */ | |
6144ed44 DW |
483 | if (sigterm && !dirty_arrays) |
484 | dprintf("caught sigterm, all clean... exiting\n"); | |
485 | else | |
486 | dprintf("no arrays to monitor... exiting\n"); | |
207aac36 | 487 | remove_pidfile(container->devname); |
e0d6609f NB |
488 | exit_now = 1; |
489 | signal_manager(); | |
e0d6609f NB |
490 | exit(0); |
491 | } | |
492 | } | |
493 | ||
549e9569 | 494 | if (!nowait) { |
4d43913c NB |
495 | sigset_t set; |
496 | sigprocmask(SIG_UNBLOCK, NULL, &set); | |
497 | sigdelset(&set, SIGUSR1); | |
1eb252b8 | 498 | monitor_loop_cnt |= 1; |
4d43913c | 499 | rv = pselect(maxfd+1, &rfds, NULL, NULL, NULL, &set); |
1eb252b8 | 500 | monitor_loop_cnt += 1; |
bfa44e2e NB |
501 | if (rv == -1 && errno == EINTR) |
502 | rv = 0; | |
4e6e574a DW |
503 | #ifdef DEBUG |
504 | dprint_wake_reasons(&rfds); | |
505 | #endif | |
506 | ||
549e9569 NB |
507 | } |
508 | ||
2e735d19 NB |
509 | if (update_queue) { |
510 | struct metadata_update *this; | |
511 | ||
512 | for (this = update_queue; this ; this = this->next) | |
513 | container->ss->process_update(container, this); | |
514 | ||
515 | update_queue_handled = update_queue; | |
516 | update_queue = NULL; | |
517 | signal_manager(); | |
518 | container->ss->sync_metadata(container); | |
519 | } | |
520 | ||
3d2c4fc7 | 521 | rv = 0; |
6144ed44 | 522 | dirty_arrays = 0; |
1ed3f387 | 523 | for (a = *aap; a ; a = a->next) { |
6144ed44 DW |
524 | int is_dirty; |
525 | ||
2a0bb19e | 526 | if (a->replaces && !discard_this) { |
549e9569 NB |
527 | struct active_array **ap; |
528 | for (ap = &a->next; *ap && *ap != a->replaces; | |
529 | ap = & (*ap)->next) | |
530 | ; | |
531 | if (*ap) | |
532 | *ap = (*ap)->next; | |
533 | discard_this = a->replaces; | |
534 | a->replaces = NULL; | |
6c3fb95c | 535 | /* FIXME check if device->state_fd need to be cleared?*/ |
1ed3f387 | 536 | signal_manager(); |
549e9569 | 537 | } |
140d3685 DW |
538 | if (a->container) { |
539 | is_dirty = read_and_act(a); | |
540 | rv |= 1; | |
541 | dirty_arrays += is_dirty; | |
542 | /* when terminating stop manipulating the array after it | |
543 | * is clean, but make sure read_and_act() is given a | |
544 | * chance to handle 'active_idle' | |
545 | */ | |
546 | if (sigterm && !is_dirty) | |
547 | a->container = NULL; /* stop touching this array */ | |
6144ed44 | 548 | } |
549e9569 | 549 | } |
0af73f61 DW |
550 | |
551 | /* propagate failures across container members */ | |
1ed3f387 | 552 | for (a = *aap; a ; a = a->next) { |
0af73f61 DW |
553 | if (!a->container) |
554 | continue; | |
555 | for (mdi = a->info.devs ; mdi ; mdi = mdi->next) | |
556 | if (mdi->curr_state & DS_FAULTY) | |
1ed3f387 | 557 | reconcile_failed(*aap, mdi); |
0af73f61 DW |
558 | } |
559 | ||
549e9569 NB |
560 | return rv; |
561 | } | |
562 | ||
563 | void do_monitor(struct supertype *container) | |
564 | { | |
565 | int rv; | |
566 | int first = 1; | |
567 | do { | |
4d43913c | 568 | rv = wait_and_act(container, first); |
549e9569 NB |
569 | first = 0; |
570 | } while (rv >= 0); | |
571 | } |