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Commit | Line | Data |
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52826846 | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
52826846 | 3 | * |
e736b623 | 4 | * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de> |
52826846 NB |
5 | * |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * Author: Neil Brown | |
e736b623 | 22 | * Email: <neilb@suse.de> |
52826846 NB |
23 | */ |
24 | ||
9a9dab36 | 25 | #include "mdadm.h" |
52826846 NB |
26 | #include "md_p.h" |
27 | #include "md_u.h" | |
e0d19036 | 28 | #include <sys/wait.h> |
98127a6d | 29 | #include <signal.h> |
4450e59f | 30 | #include <limits.h> |
773135f5 | 31 | #include <syslog.h> |
52826846 | 32 | |
2e0172b1 N |
33 | struct state { |
34 | char *devname; | |
35 | int devnum; /* to sync with mdstat info */ | |
36 | long utime; | |
37 | int err; | |
38 | char *spare_group; | |
39 | int active, working, failed, spare, raid; | |
40 | int expected_spares; | |
b0599bda N |
41 | int devstate[MAX_DISKS]; |
42 | dev_t devid[MAX_DISKS]; | |
2e0172b1 N |
43 | int percent; |
44 | int parent_dev; /* For subarray, devnum of parent. | |
45 | * For others, NoMdDev | |
46 | */ | |
47 | struct supertype *metadata; | |
c3621c0a ML |
48 | struct state *subarray;/* for a container it is a link to first subarray |
49 | * for a subarray it is a link to next subarray | |
50 | * in the same container */ | |
51 | struct state *parent; /* for a subarray it is a link to its container | |
52 | */ | |
2e0172b1 N |
53 | struct state *next; |
54 | }; | |
55 | ||
e0bd6a96 N |
56 | struct alert_info { |
57 | char *mailaddr; | |
58 | char *mailfrom; | |
59 | char *alert_cmd; | |
60 | int dosyslog; | |
61 | }; | |
2e0172b1 N |
62 | static int make_daemon(char *pidfile); |
63 | static int check_one_sharer(int scan); | |
e0bd6a96 | 64 | static void alert(char *event, char *dev, char *disc, struct alert_info *info); |
a90e1050 | 65 | static int check_array(struct state *st, struct mdstat_ent *mdstat, |
e0bd6a96 | 66 | int test, struct alert_info *info, |
c2ecf5f6 | 67 | int increments, char *prefer); |
83f3bc5f | 68 | static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist, |
e0bd6a96 N |
69 | int test, struct alert_info *info); |
70 | static void try_spare_migration(struct state *statelist, struct alert_info *info); | |
c3621c0a | 71 | static void link_containers_with_subarrays(struct state *list); |
2e0172b1 | 72 | |
a655e550 | 73 | int Monitor(struct mddev_dev *devlist, |
52826846 | 74 | char *mailaddr, char *alert_cmd, |
95c50205 N |
75 | struct context *c, |
76 | int daemonise, int oneshot, | |
77 | int dosyslog, char *pidfile, int increments, | |
78 | int share) | |
52826846 NB |
79 | { |
80 | /* | |
81 | * Every few seconds, scan every md device looking for changes | |
82 | * When a change is found, log it, possibly run the alert command, | |
83 | * and possibly send Email | |
84 | * | |
85 | * For each array, we record: | |
86 | * Update time | |
87 | * active/working/failed/spare drives | |
88 | * State of each device. | |
e0d19036 | 89 | * %rebuilt if rebuilding |
52826846 NB |
90 | * |
91 | * If the update time changes, check out all the data again | |
92 | * It is possible that we cannot get the state of each device | |
93 | * due to bugs in the md kernel module. | |
e0d19036 NB |
94 | * We also read /proc/mdstat to get rebuild percent, |
95 | * and to get state on all active devices incase of kernel bug. | |
52826846 | 96 | * |
e0d19036 NB |
97 | * Events are: |
98 | * Fail | |
99 | * An active device had Faulty set or Active/Sync removed | |
100 | * FailSpare | |
101 | * A spare device had Faulty set | |
102 | * SpareActive | |
103 | * An active device had a reverse transition | |
104 | * RebuildStarted | |
105 | * percent went from -1 to +ve | |
9a36a9b7 ZB |
106 | * RebuildNN |
107 | * percent went from below to not-below NN% | |
e0d19036 NB |
108 | * DeviceDisappeared |
109 | * Couldn't access a device which was previously visible | |
52826846 NB |
110 | * |
111 | * if we detect an array with active<raid and spare==0 | |
112 | * we look at other arrays that have same spare-group | |
113 | * If we find one with active==raid and spare>0, | |
114 | * and if we can get_disk_info and find a name | |
115 | * Then we hot-remove and hot-add to the other array | |
116 | * | |
e0d19036 NB |
117 | * If devlist is NULL, then we can monitor everything because --scan |
118 | * was given. We get an initial list from config file and add anything | |
119 | * that appears in /proc/mdstat | |
52826846 NB |
120 | */ |
121 | ||
2e0172b1 | 122 | struct state *statelist = NULL; |
b657208c | 123 | struct state *st2; |
52826846 | 124 | int finished = 0; |
e0d19036 | 125 | struct mdstat_ent *mdstat = NULL; |
4948b8f7 | 126 | char *mailfrom = NULL; |
e0bd6a96 | 127 | struct alert_info info; |
e0d19036 | 128 | |
d013a55e | 129 | if (!mailaddr) { |
8aec876d | 130 | mailaddr = conf_get_mailaddr(); |
95c50205 | 131 | if (mailaddr && ! c->scan) |
e7b84f9d | 132 | pr_err("Monitor using email address \"%s\" from config file\n", |
d013a55e NB |
133 | mailaddr); |
134 | } | |
8aec876d | 135 | mailfrom = conf_get_mailfrom(); |
4948b8f7 | 136 | |
d013a55e | 137 | if (!alert_cmd) { |
8aec876d | 138 | alert_cmd = conf_get_program(); |
95c50205 | 139 | if (alert_cmd && ! c->scan) |
e7b84f9d | 140 | pr_err("Monitor using program \"%s\" from config file\n", |
d013a55e NB |
141 | alert_cmd); |
142 | } | |
95c50205 | 143 | if (c->scan && !mailaddr && !alert_cmd && !dosyslog) { |
e7b84f9d | 144 | pr_err("No mail address or alert command - not monitoring.\n"); |
d013a55e | 145 | return 1; |
56eedc1a | 146 | } |
e0bd6a96 N |
147 | info.alert_cmd = alert_cmd; |
148 | info.mailaddr = mailaddr; | |
149 | info.mailfrom = mailfrom; | |
150 | info.dosyslog = dosyslog; | |
d013a55e | 151 | |
44d337f0 AC |
152 | if (daemonise) { |
153 | int rv = make_daemon(pidfile); | |
154 | if (rv >= 0) | |
155 | return rv; | |
156 | } | |
e0d19036 | 157 | |
2e0172b1 | 158 | if (share) |
95c50205 | 159 | if (check_one_sharer(c->scan)) |
2e0172b1 | 160 | return 1; |
edde9560 | 161 | |
e0d19036 | 162 | if (devlist == NULL) { |
fa56eddb | 163 | struct mddev_ident *mdlist = conf_get_ident(NULL); |
e0d19036 | 164 | for (; mdlist; mdlist=mdlist->next) { |
fe056d1f N |
165 | struct state *st; |
166 | if (mdlist->devname == NULL) | |
167 | continue; | |
112cace6 N |
168 | if (strcasecmp(mdlist->devname, "<ignore>") == 0) |
169 | continue; | |
503975b9 | 170 | st = xcalloc(1, sizeof *st); |
db2d001c | 171 | if (mdlist->devname[0] == '/') |
503975b9 | 172 | st->devname = xstrdup(mdlist->devname); |
db2d001c | 173 | else { |
503975b9 | 174 | st->devname = xmalloc(8+strlen(mdlist->devname)+1); |
db2d001c N |
175 | strcpy(strcpy(st->devname, "/dev/md/"), |
176 | mdlist->devname); | |
177 | } | |
e0d19036 | 178 | st->next = statelist; |
4450e59f | 179 | st->devnum = INT_MAX; |
9dad51d4 | 180 | st->percent = RESYNC_UNKNOWN; |
feb716e9 | 181 | st->expected_spares = mdlist->spare_disks; |
e0d19036 | 182 | if (mdlist->spare_group) |
503975b9 | 183 | st->spare_group = xstrdup(mdlist->spare_group); |
e0d19036 NB |
184 | statelist = st; |
185 | } | |
186 | } else { | |
a655e550 | 187 | struct mddev_dev *dv; |
e0d19036 | 188 | for (dv=devlist ; dv; dv=dv->next) { |
fa56eddb | 189 | struct mddev_ident *mdlist = conf_get_ident(dv->devname); |
503975b9 N |
190 | struct state *st = xcalloc(1, sizeof *st); |
191 | st->devname = xstrdup(dv->devname); | |
e0d19036 | 192 | st->next = statelist; |
4450e59f | 193 | st->devnum = INT_MAX; |
9dad51d4 | 194 | st->percent = RESYNC_UNKNOWN; |
feb716e9 | 195 | st->expected_spares = -1; |
e5329c37 NB |
196 | if (mdlist) { |
197 | st->expected_spares = mdlist->spare_disks; | |
198 | if (mdlist->spare_group) | |
503975b9 | 199 | st->spare_group = xstrdup(mdlist->spare_group); |
e5329c37 | 200 | } |
e0d19036 NB |
201 | statelist = st; |
202 | } | |
203 | } | |
204 | ||
205 | ||
206 | while (! finished) { | |
aa88f531 | 207 | int new_found = 0; |
e0d19036 | 208 | struct state *st; |
a90e1050 | 209 | int anydegraded = 0; |
e0d19036 NB |
210 | |
211 | if (mdstat) | |
212 | free_mdstat(mdstat); | |
22a88995 | 213 | mdstat = mdstat_read(oneshot?0:1, 0); |
e0d19036 | 214 | |
2e0172b1 | 215 | for (st=statelist; st; st=st->next) |
95c50205 N |
216 | if (check_array(st, mdstat, c->test, &info, |
217 | increments, c->prefer)) | |
a90e1050 | 218 | anydegraded = 1; |
2e0172b1 | 219 | |
e0d19036 | 220 | /* now check if there are any new devices found in mdstat */ |
95c50205 N |
221 | if (c->scan) |
222 | new_found = add_new_arrays(mdstat, &statelist, c->test, | |
e0bd6a96 | 223 | &info); |
2e0172b1 | 224 | |
e0d19036 NB |
225 | /* If an array has active < raid && spare == 0 && spare_group != NULL |
226 | * Look for another array with spare > 0 and active == raid and same spare_group | |
227 | * if found, choose a device and hotremove/hotadd | |
228 | */ | |
a90e1050 | 229 | if (share && anydegraded) |
e0bd6a96 | 230 | try_spare_migration(statelist, &info); |
aa88f531 NB |
231 | if (!new_found) { |
232 | if (oneshot) | |
233 | break; | |
234 | else | |
95c50205 | 235 | mdstat_wait(c->delay); |
aa88f531 | 236 | } |
95c50205 | 237 | c->test = 0; |
52826846 | 238 | } |
b657208c JS |
239 | for (st2 = statelist; st2; st2 = statelist) { |
240 | statelist = st2->next; | |
241 | free(st2); | |
242 | } | |
243 | ||
b5e64645 NB |
244 | if (pidfile) |
245 | unlink(pidfile); | |
52826846 NB |
246 | return 0; |
247 | } | |
248 | ||
2e0172b1 N |
249 | static int make_daemon(char *pidfile) |
250 | { | |
44d337f0 AC |
251 | /* Return: |
252 | * -1 in the forked daemon | |
253 | * 0 in the parent | |
254 | * 1 on error | |
255 | * so a none-negative becomes the exit code. | |
256 | */ | |
2e0172b1 N |
257 | int pid = fork(); |
258 | if (pid > 0) { | |
259 | if (!pidfile) | |
260 | printf("%d\n", pid); | |
261 | else { | |
262 | FILE *pid_file; | |
263 | pid_file=fopen(pidfile, "w"); | |
264 | if (!pid_file) | |
265 | perror("cannot create pid file"); | |
266 | else { | |
267 | fprintf(pid_file,"%d\n", pid); | |
268 | fclose(pid_file); | |
269 | } | |
270 | } | |
271 | return 0; | |
272 | } | |
273 | if (pid < 0) { | |
274 | perror("daemonise"); | |
275 | return 1; | |
276 | } | |
277 | close(0); | |
278 | open("/dev/null", O_RDWR); | |
279 | dup2(0,1); | |
280 | dup2(0,2); | |
281 | setsid(); | |
44d337f0 | 282 | return -1; |
2e0172b1 N |
283 | } |
284 | ||
285 | static int check_one_sharer(int scan) | |
286 | { | |
287 | int pid, rv; | |
288 | FILE *fp; | |
289 | char dir[20]; | |
0011874f | 290 | char path[100]; |
2e0172b1 | 291 | struct stat buf; |
0011874f JS |
292 | sprintf(path, "%s/autorebuild.pid", MDMON_DIR); |
293 | fp = fopen(path, "r"); | |
2e0172b1 | 294 | if (fp) { |
71204a50 N |
295 | if (fscanf(fp, "%d", &pid) != 1) |
296 | pid = -1; | |
2e0172b1 N |
297 | sprintf(dir, "/proc/%d", pid); |
298 | rv = stat(dir, &buf); | |
299 | if (rv != -1) { | |
300 | if (scan) { | |
e7b84f9d | 301 | pr_err("Only one " |
2e0172b1 N |
302 | "autorebuild process allowed" |
303 | " in scan mode, aborting\n"); | |
304 | fclose(fp); | |
305 | return 1; | |
306 | } else { | |
e7b84f9d | 307 | pr_err("Warning: One" |
2e0172b1 | 308 | " autorebuild process already" |
a1bb2065 | 309 | " running.\n"); |
2e0172b1 N |
310 | } |
311 | } | |
312 | fclose(fp); | |
313 | } | |
314 | if (scan) { | |
0011874f | 315 | if (mkdir(MDMON_DIR, S_IRWXU) < 0 && |
a1bb2065 | 316 | errno != EEXIST) { |
e7b84f9d | 317 | pr_err("Can't create " |
a1bb2065 AC |
318 | "autorebuild.pid file\n"); |
319 | } else { | |
0011874f | 320 | fp = fopen(path, "w"); |
a1bb2065 | 321 | if (!fp) |
e7b84f9d | 322 | pr_err("Cannot create" |
a1bb2065 AC |
323 | " autorebuild.pid" |
324 | "file\n"); | |
325 | else { | |
326 | pid = getpid(); | |
327 | fprintf(fp, "%d\n", pid); | |
328 | fclose(fp); | |
329 | } | |
2e0172b1 N |
330 | } |
331 | } | |
332 | return 0; | |
333 | } | |
52826846 | 334 | |
e0bd6a96 | 335 | static void alert(char *event, char *dev, char *disc, struct alert_info *info) |
52826846 | 336 | { |
773135f5 NB |
337 | int priority; |
338 | ||
b1bac75b | 339 | if (!info->alert_cmd && !info->mailaddr && !info->dosyslog) { |
cd29a5c8 | 340 | time_t now = time(0); |
aba69144 | 341 | |
e0d19036 | 342 | printf("%1.15s: %s on %s %s\n", ctime(&now)+4, event, dev, disc?disc:"unknown device"); |
cd29a5c8 | 343 | } |
e0bd6a96 | 344 | if (info->alert_cmd) { |
52826846 NB |
345 | int pid = fork(); |
346 | switch(pid) { | |
347 | default: | |
348 | waitpid(pid, NULL, 0); | |
349 | break; | |
350 | case -1: | |
351 | break; | |
352 | case 0: | |
e0bd6a96 N |
353 | execl(info->alert_cmd, info->alert_cmd, |
354 | event, dev, disc, NULL); | |
52826846 NB |
355 | exit(2); |
356 | } | |
357 | } | |
e0bd6a96 | 358 | if (info->mailaddr && |
aba69144 | 359 | (strncmp(event, "Fail", 4)==0 || |
98c6faba | 360 | strncmp(event, "Test", 4)==0 || |
d1732eeb | 361 | strncmp(event, "Spares", 6)==0 || |
aa88f531 | 362 | strncmp(event, "Degrade", 7)==0)) { |
52826846 NB |
363 | FILE *mp = popen(Sendmail, "w"); |
364 | if (mp) { | |
008e1100 | 365 | FILE *mdstat; |
52826846 NB |
366 | char hname[256]; |
367 | gethostname(hname, sizeof(hname)); | |
368 | signal(SIGPIPE, SIG_IGN); | |
e0bd6a96 N |
369 | if (info->mailfrom) |
370 | fprintf(mp, "From: %s\n", info->mailfrom); | |
4948b8f7 NB |
371 | else |
372 | fprintf(mp, "From: " Name " monitoring <root>\n"); | |
e0bd6a96 N |
373 | fprintf(mp, "To: %s\n", info->mailaddr); |
374 | fprintf(mp, "Subject: %s event on %s:%s\n\n", | |
375 | event, dev, hname); | |
52826846 | 376 | |
e0bd6a96 N |
377 | fprintf(mp, |
378 | "This is an automatically generated" | |
379 | " mail message from " Name "\n"); | |
52826846 NB |
380 | fprintf(mp, "running on %s\n\n", hname); |
381 | ||
e0bd6a96 N |
382 | fprintf(mp, |
383 | "A %s event had been detected on" | |
384 | " md device %s.\n\n", event, dev); | |
52826846 | 385 | |
37dfc3d6 | 386 | if (disc && disc[0] != ' ') |
e0bd6a96 N |
387 | fprintf(mp, |
388 | "It could be related to" | |
389 | " component device %s.\n\n", disc); | |
37dfc3d6 NB |
390 | if (disc && disc[0] == ' ') |
391 | fprintf(mp, "Extra information:%s.\n\n", disc); | |
52826846 NB |
392 | |
393 | fprintf(mp, "Faithfully yours, etc.\n"); | |
008e1100 NB |
394 | |
395 | mdstat = fopen("/proc/mdstat", "r"); | |
396 | if (mdstat) { | |
397 | char buf[8192]; | |
398 | int n; | |
e0bd6a96 N |
399 | fprintf(mp, |
400 | "\nP.S. The /proc/mdstat file" | |
401 | " currently contains the following:\n\n"); | |
008e1100 | 402 | while ( (n=fread(buf, 1, sizeof(buf), mdstat)) > 0) |
e0bd6a96 | 403 | n=fwrite(buf, 1, n, mp); |
008e1100 NB |
404 | fclose(mdstat); |
405 | } | |
6278fb3a | 406 | pclose(mp); |
52826846 | 407 | } |
52826846 | 408 | } |
773135f5 NB |
409 | |
410 | /* log the event to syslog maybe */ | |
e0bd6a96 | 411 | if (info->dosyslog) { |
773135f5 NB |
412 | /* Log at a different severity depending on the event. |
413 | * | |
414 | * These are the critical events: */ | |
415 | if (strncmp(event, "Fail", 4)==0 || | |
416 | strncmp(event, "Degrade", 7)==0 || | |
417 | strncmp(event, "DeviceDisappeared", 17)==0) | |
418 | priority = LOG_CRIT; | |
419 | /* Good to know about, but are not failures: */ | |
420 | else if (strncmp(event, "Rebuild", 7)==0 || | |
d1732eeb NB |
421 | strncmp(event, "MoveSpare", 9)==0 || |
422 | strncmp(event, "Spares", 6) != 0) | |
773135f5 NB |
423 | priority = LOG_WARNING; |
424 | /* Everything else: */ | |
425 | else | |
426 | priority = LOG_INFO; | |
427 | ||
428 | if (disc) | |
e0bd6a96 N |
429 | syslog(priority, |
430 | "%s event detected on md device %s," | |
431 | " component device %s", event, dev, disc); | |
773135f5 | 432 | else |
e0bd6a96 N |
433 | syslog(priority, |
434 | "%s event detected on md device %s", | |
435 | event, dev); | |
773135f5 | 436 | } |
52826846 | 437 | } |
b90c0e9a | 438 | |
a90e1050 | 439 | static int check_array(struct state *st, struct mdstat_ent *mdstat, |
e0bd6a96 | 440 | int test, struct alert_info *ainfo, |
c2ecf5f6 | 441 | int increments, char *prefer) |
2e0172b1 | 442 | { |
ff044d6b AC |
443 | /* Update the state 'st' to reflect any changes shown in mdstat, |
444 | * or found by directly examining the array, and return | |
445 | * '1' if the array is degraded, or '0' if it is optimal (or dead). | |
446 | */ | |
b0599bda | 447 | struct { int state, major, minor; } info[MAX_DISKS]; |
2e0172b1 N |
448 | mdu_array_info_t array; |
449 | struct mdstat_ent *mse = NULL, *mse2; | |
450 | char *dev = st->devname; | |
451 | int fd; | |
452 | int i; | |
9e6d9291 N |
453 | int remaining_disks; |
454 | int last_disk; | |
721b662b | 455 | int new_array = 0; |
2e0172b1 N |
456 | |
457 | if (test) | |
e0bd6a96 | 458 | alert("TestMessage", dev, NULL, ainfo); |
2e0172b1 N |
459 | fd = open(dev, O_RDONLY); |
460 | if (fd < 0) { | |
461 | if (!st->err) | |
e0bd6a96 N |
462 | alert("DeviceDisappeared", dev, NULL, ainfo); |
463 | st->err=1; | |
a90e1050 | 464 | return 0; |
2e0172b1 N |
465 | } |
466 | fcntl(fd, F_SETFD, FD_CLOEXEC); | |
467 | if (ioctl(fd, GET_ARRAY_INFO, &array)<0) { | |
468 | if (!st->err) | |
e0bd6a96 N |
469 | alert("DeviceDisappeared", dev, NULL, ainfo); |
470 | st->err=1; | |
2e0172b1 | 471 | close(fd); |
a90e1050 | 472 | return 0; |
2e0172b1 N |
473 | } |
474 | /* It's much easier to list what array levels can't | |
475 | * have a device disappear than all of them that can | |
476 | */ | |
477 | if (array.level == 0 || array.level == -1) { | |
478 | if (!st->err) | |
e0bd6a96 | 479 | alert("DeviceDisappeared", dev, "Wrong-Level", ainfo); |
2e0172b1 N |
480 | st->err = 1; |
481 | close(fd); | |
a90e1050 | 482 | return 0; |
2e0172b1 N |
483 | } |
484 | if (st->devnum == INT_MAX) { | |
485 | struct stat stb; | |
486 | if (fstat(fd, &stb) == 0 && | |
487 | (S_IFMT&stb.st_mode)==S_IFBLK) { | |
488 | if (major(stb.st_rdev) == MD_MAJOR) | |
489 | st->devnum = minor(stb.st_rdev); | |
490 | else | |
491 | st->devnum = -1- (minor(stb.st_rdev)>>6); | |
492 | } | |
493 | } | |
494 | ||
495 | for (mse2 = mdstat ; mse2 ; mse2=mse2->next) | |
496 | if (mse2->devnum == st->devnum) { | |
497 | mse2->devnum = INT_MAX; /* flag it as "used" */ | |
498 | mse = mse2; | |
499 | } | |
500 | ||
501 | if (!mse) { | |
502 | /* duplicated array in statelist | |
503 | * or re-created after reading mdstat*/ | |
504 | st->err = 1; | |
505 | close(fd); | |
a90e1050 | 506 | return 0; |
2e0172b1 N |
507 | } |
508 | /* this array is in /proc/mdstat */ | |
509 | if (array.utime == 0) | |
510 | /* external arrays don't update utime, so | |
511 | * just make sure it is always different. */ | |
512 | array.utime = st->utime + 1;; | |
513 | ||
0f760384 N |
514 | if (st->err) { |
515 | /* New array appeared where previously had and error */ | |
516 | st->err = 0; | |
517 | st->percent = RESYNC_NONE; | |
721b662b | 518 | new_array = 1; |
0f760384 N |
519 | alert("NewArray", st->devname, NULL, ainfo); |
520 | } | |
521 | ||
2e0172b1 N |
522 | if (st->utime == array.utime && |
523 | st->failed == array.failed_disks && | |
524 | st->working == array.working_disks && | |
525 | st->spare == array.spare_disks && | |
526 | (mse == NULL || ( | |
527 | mse->percent == st->percent | |
528 | ))) { | |
529 | close(fd); | |
ff044d6b AC |
530 | if ((st->active < st->raid) && st->spare == 0) |
531 | return 1; | |
532 | else | |
533 | return 0; | |
2e0172b1 N |
534 | } |
535 | if (st->utime == 0 && /* new array */ | |
536 | mse->pattern && strchr(mse->pattern, '_') /* degraded */ | |
537 | ) | |
e0bd6a96 | 538 | alert("DegradedArray", dev, NULL, ainfo); |
2e0172b1 N |
539 | |
540 | if (st->utime == 0 && /* new array */ | |
541 | st->expected_spares > 0 && | |
542 | array.spare_disks < st->expected_spares) | |
e0bd6a96 | 543 | alert("SparesMissing", dev, NULL, ainfo); |
9dad51d4 | 544 | if (st->percent < 0 && st->percent != RESYNC_UNKNOWN && |
2e0172b1 | 545 | mse->percent >= 0) |
e0bd6a96 | 546 | alert("RebuildStarted", dev, NULL, ainfo); |
2e0172b1 N |
547 | if (st->percent >= 0 && |
548 | mse->percent >= 0 && | |
549 | (mse->percent / increments) > (st->percent / increments)) { | |
550 | char percentalert[15]; // "RebuildNN" (10 chars) or "RebuildStarted" (15 chars) | |
551 | ||
552 | if((mse->percent / increments) == 0) | |
553 | snprintf(percentalert, sizeof(percentalert), "RebuildStarted"); | |
554 | else | |
555 | snprintf(percentalert, sizeof(percentalert), "Rebuild%02d", mse->percent); | |
556 | ||
e0bd6a96 | 557 | alert(percentalert, dev, NULL, ainfo); |
2e0172b1 N |
558 | } |
559 | ||
9dad51d4 | 560 | if (mse->percent == RESYNC_NONE && |
2e0172b1 N |
561 | st->percent >= 0) { |
562 | /* Rebuild/sync/whatever just finished. | |
563 | * If there is a number in /mismatch_cnt, | |
564 | * we should report that. | |
565 | */ | |
566 | struct mdinfo *sra = | |
567 | sysfs_read(-1, st->devnum, GET_MISMATCH); | |
568 | if (sra && sra->mismatch_cnt > 0) { | |
8453f8d0 LD |
569 | char cnt[80]; |
570 | snprintf(cnt, sizeof(cnt), | |
571 | " mismatches found: %d (on raid level %d)", | |
d97a5e60 | 572 | sra->mismatch_cnt, array.level); |
e0bd6a96 | 573 | alert("RebuildFinished", dev, cnt, ainfo); |
2e0172b1 | 574 | } else |
e0bd6a96 | 575 | alert("RebuildFinished", dev, NULL, ainfo); |
2e0172b1 N |
576 | if (sra) |
577 | free(sra); | |
578 | } | |
579 | st->percent = mse->percent; | |
580 | ||
9e6d9291 | 581 | remaining_disks = array.nr_disks; |
b0599bda | 582 | for (i=0; i<MAX_DISKS && remaining_disks > 0; |
2e0172b1 N |
583 | i++) { |
584 | mdu_disk_info_t disc; | |
585 | disc.number = i; | |
586 | if (ioctl(fd, GET_DISK_INFO, &disc) >= 0) { | |
587 | info[i].state = disc.state; | |
588 | info[i].major = disc.major; | |
589 | info[i].minor = disc.minor; | |
9e6d9291 N |
590 | if (disc.major || disc.minor) |
591 | remaining_disks --; | |
2e0172b1 N |
592 | } else |
593 | info[i].major = info[i].minor = 0; | |
594 | } | |
9e6d9291 | 595 | last_disk = i; |
2e0172b1 | 596 | |
4019ad07 JL |
597 | if (mse->metadata_version && |
598 | strncmp(mse->metadata_version, "external:", 9) == 0 && | |
2e0172b1 N |
599 | is_subarray(mse->metadata_version+9)) |
600 | st->parent_dev = | |
601 | devname2devnum(mse->metadata_version+10); | |
602 | else | |
603 | st->parent_dev = NoMdDev; | |
604 | if (st->metadata == NULL && | |
605 | st->parent_dev == NoMdDev) | |
606 | st->metadata = super_by_fd(fd, NULL); | |
607 | ||
608 | close(fd); | |
609 | ||
b0599bda | 610 | for (i=0; i<MAX_DISKS; i++) { |
2e0172b1 N |
611 | mdu_disk_info_t disc = {0,0,0,0,0}; |
612 | int newstate=0; | |
613 | int change; | |
614 | char *dv = NULL; | |
615 | disc.number = i; | |
721b662b N |
616 | if (i < last_disk && |
617 | (info[i].major || info[i].minor)) { | |
2e0172b1 | 618 | newstate = info[i].state; |
c2ecf5f6 N |
619 | dv = map_dev_preferred( |
620 | info[i].major, info[i].minor, 1, | |
621 | prefer); | |
2e0172b1 N |
622 | disc.state = newstate; |
623 | disc.major = info[i].major; | |
624 | disc.minor = info[i].minor; | |
721b662b N |
625 | } else |
626 | newstate = (1 << MD_DISK_REMOVED); | |
627 | ||
2e0172b1 | 628 | if (dv == NULL && st->devid[i]) |
c2ecf5f6 N |
629 | dv = map_dev_preferred( |
630 | major(st->devid[i]), | |
631 | minor(st->devid[i]), 1, prefer); | |
2e0172b1 | 632 | change = newstate ^ st->devstate[i]; |
721b662b N |
633 | if (st->utime && change && !st->err && !new_array) { |
634 | if ((st->devstate[i]&change)&(1<<MD_DISK_SYNC)) | |
e0bd6a96 | 635 | alert("Fail", dev, dv, ainfo); |
721b662b | 636 | else if ((newstate & (1<<MD_DISK_FAULTY)) && |
2e0172b1 | 637 | (disc.major || disc.minor) && |
721b662b | 638 | st->devid[i] == makedev(disc.major, disc.minor)) |
e0bd6a96 | 639 | alert("FailSpare", dev, dv, ainfo); |
721b662b | 640 | else if ((newstate&change)&(1<<MD_DISK_SYNC)) |
e0bd6a96 | 641 | alert("SpareActive", dev, dv, ainfo); |
2e0172b1 N |
642 | } |
643 | st->devstate[i] = newstate; | |
644 | st->devid[i] = makedev(disc.major, disc.minor); | |
645 | } | |
646 | st->active = array.active_disks; | |
647 | st->working = array.working_disks; | |
648 | st->spare = array.spare_disks; | |
649 | st->failed = array.failed_disks; | |
650 | st->utime = array.utime; | |
651 | st->raid = array.raid_disks; | |
652 | st->err = 0; | |
a90e1050 N |
653 | if ((st->active < st->raid) && st->spare == 0) |
654 | return 1; | |
655 | return 0; | |
2e0172b1 N |
656 | } |
657 | ||
83f3bc5f | 658 | static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist, |
e0bd6a96 | 659 | int test, struct alert_info *info) |
2e0172b1 N |
660 | { |
661 | struct mdstat_ent *mse; | |
662 | int new_found = 0; | |
663 | ||
664 | for (mse=mdstat; mse; mse=mse->next) | |
665 | if (mse->devnum != INT_MAX && | |
666 | (!mse->level || /* retrieve containers */ | |
667 | (strcmp(mse->level, "raid0") != 0 && | |
668 | strcmp(mse->level, "linear") != 0)) | |
669 | ) { | |
503975b9 | 670 | struct state *st = xcalloc(1, sizeof *st); |
2e0172b1 N |
671 | mdu_array_info_t array; |
672 | int fd; | |
503975b9 | 673 | st->devname = xstrdup(get_md_name(mse->devnum)); |
2e0172b1 N |
674 | if ((fd = open(st->devname, O_RDONLY)) < 0 || |
675 | ioctl(fd, GET_ARRAY_INFO, &array)< 0) { | |
676 | /* no such array */ | |
677 | if (fd >=0) close(fd); | |
678 | put_md_name(st->devname); | |
679 | free(st->devname); | |
680 | if (st->metadata) { | |
681 | st->metadata->ss->free_super(st->metadata); | |
682 | free(st->metadata); | |
683 | } | |
684 | free(st); | |
685 | continue; | |
686 | } | |
687 | close(fd); | |
83f3bc5f | 688 | st->next = *statelist; |
2e0172b1 N |
689 | st->err = 1; |
690 | st->devnum = mse->devnum; | |
9dad51d4 | 691 | st->percent = RESYNC_UNKNOWN; |
2e0172b1 | 692 | st->expected_spares = -1; |
eb28e119 N |
693 | if (mse->metadata_version && |
694 | strncmp(mse->metadata_version, "external:", 9) == 0 && | |
2e0172b1 N |
695 | is_subarray(mse->metadata_version+9)) |
696 | st->parent_dev = | |
697 | devname2devnum(mse->metadata_version+10); | |
698 | else | |
699 | st->parent_dev = NoMdDev; | |
83f3bc5f | 700 | *statelist = st; |
2e0172b1 | 701 | if (test) |
e0bd6a96 | 702 | alert("TestMessage", st->devname, NULL, info); |
2e0172b1 N |
703 | new_found = 1; |
704 | } | |
705 | return new_found; | |
706 | } | |
707 | ||
de697acc | 708 | static int get_min_spare_size_required(struct state *st, unsigned long long *sizep) |
80e7f8c3 AC |
709 | { |
710 | int fd; | |
80e7f8c3 AC |
711 | |
712 | if (!st->metadata || | |
300f5033 CA |
713 | !st->metadata->ss->min_acceptable_spare_size) { |
714 | *sizep = 0; | |
de697acc | 715 | return 0; |
300f5033 | 716 | } |
80e7f8c3 AC |
717 | |
718 | fd = open(st->devname, O_RDONLY); | |
719 | if (fd < 0) | |
de697acc AC |
720 | return 1; |
721 | if (st->metadata->ss->external) | |
722 | st->metadata->ss->load_container(st->metadata, fd, st->devname); | |
723 | else | |
724 | st->metadata->ss->load_super(st->metadata, fd, st->devname); | |
80e7f8c3 | 725 | close(fd); |
de697acc AC |
726 | if (!st->metadata->sb) |
727 | return 1; | |
728 | *sizep = st->metadata->ss->min_acceptable_spare_size(st->metadata); | |
80e7f8c3 AC |
729 | st->metadata->ss->free_super(st->metadata); |
730 | ||
de697acc | 731 | return 0; |
80e7f8c3 AC |
732 | } |
733 | ||
5ec0f373 | 734 | static int check_donor(struct state *from, struct state *to) |
2feb22ef | 735 | { |
66f5c4b6 N |
736 | struct state *sub; |
737 | ||
2feb22ef N |
738 | if (from == to) |
739 | return 0; | |
66f5c4b6 N |
740 | if (from->parent) |
741 | /* Cannot move from a member */ | |
2feb22ef | 742 | return 0; |
ff044d6b AC |
743 | if (from->err) |
744 | return 0; | |
66f5c4b6 N |
745 | for (sub = from->subarray; sub; sub = sub->subarray) |
746 | /* If source array has degraded subarrays, don't | |
747 | * remove anything | |
748 | */ | |
749 | if (sub->active < sub->raid) | |
750 | return 0; | |
751 | if (from->metadata->ss->external == 0) | |
752 | if (from->active < from->raid) | |
753 | return 0; | |
2feb22ef N |
754 | if (from->spare <= 0) |
755 | return 0; | |
e78dda3b | 756 | return 1; |
2feb22ef N |
757 | } |
758 | ||
0f0749ad | 759 | static dev_t choose_spare(struct state *from, struct state *to, |
f0b85306 | 760 | struct domainlist *domlist, unsigned long long min_size) |
0fa21e85 N |
761 | { |
762 | int d; | |
0f0749ad | 763 | dev_t dev = 0; |
0fa21e85 | 764 | |
b0599bda | 765 | for (d = from->raid; !dev && d < MAX_DISKS; d++) { |
0fa21e85 N |
766 | if (from->devid[d] > 0 && |
767 | from->devstate[d] == 0) { | |
768 | struct dev_policy *pol; | |
769 | unsigned long long dev_size; | |
770 | ||
bfd76b93 CA |
771 | if (to->metadata->ss->external && |
772 | test_partition_from_id(from->devid[d])) | |
773 | continue; | |
774 | ||
0fa21e85 N |
775 | if (min_size && |
776 | dev_size_from_id(from->devid[d], &dev_size) && | |
777 | dev_size < min_size) | |
778 | continue; | |
779 | ||
780 | pol = devnum_policy(from->devid[d]); | |
781 | if (from->spare_group) | |
782 | pol_add(&pol, pol_domain, | |
783 | from->spare_group, NULL); | |
e5508b36 | 784 | if (domain_test(domlist, pol, to->metadata->ss->name) == 1) |
0fa21e85 N |
785 | dev = from->devid[d]; |
786 | dev_policy_free(pol); | |
787 | } | |
788 | } | |
789 | return dev; | |
790 | } | |
791 | ||
0f0749ad | 792 | static dev_t container_choose_spare(struct state *from, struct state *to, |
f0b85306 | 793 | struct domainlist *domlist, |
a1e49d69 | 794 | unsigned long long min_size, int active) |
5739e0d0 N |
795 | { |
796 | /* This is similar to choose_spare, but we cannot trust devstate, | |
797 | * so we need to read the metadata instead | |
798 | */ | |
326727d9 | 799 | struct mdinfo *list; |
5739e0d0 | 800 | struct supertype *st = from->metadata; |
ff044d6b | 801 | int fd = open(from->devname, O_RDONLY); |
5739e0d0 | 802 | int err; |
0f0749ad | 803 | dev_t dev = 0; |
5739e0d0 N |
804 | |
805 | if (fd < 0) | |
806 | return 0; | |
326727d9 AC |
807 | if (!st->ss->getinfo_super_disks) { |
808 | close(fd); | |
5739e0d0 | 809 | return 0; |
326727d9 | 810 | } |
5739e0d0 N |
811 | |
812 | err = st->ss->load_container(st, fd, NULL); | |
813 | close(fd); | |
814 | if (err) | |
815 | return 0; | |
5739e0d0 | 816 | |
a1e49d69 CA |
817 | if (from == to) { |
818 | /* We must check if number of active disks has not increased | |
819 | * since ioctl in main loop. mdmon may have added spare | |
820 | * to subarray. If so we do not need to look for more spares | |
821 | * so return non zero value */ | |
822 | int active_cnt = 0; | |
823 | struct mdinfo *dp; | |
824 | list = st->ss->getinfo_super_disks(st); | |
825 | if (!list) { | |
826 | st->ss->free_super(st); | |
827 | return 1; | |
828 | } | |
829 | dp = list->devs; | |
830 | while (dp) { | |
831 | if (dp->disk.state & (1<<MD_DISK_SYNC) && | |
832 | !(dp->disk.state & (1<<MD_DISK_FAULTY))) | |
833 | active_cnt++; | |
834 | dp = dp->next; | |
835 | } | |
836 | sysfs_free(list); | |
837 | if (active < active_cnt) { | |
838 | /* Spare just activated.*/ | |
839 | st->ss->free_super(st); | |
840 | return 1; | |
841 | } | |
842 | } | |
843 | ||
326727d9 AC |
844 | /* We only need one spare so full list not needed */ |
845 | list = container_choose_spares(st, min_size, domlist, from->spare_group, | |
846 | to->metadata->ss->name, 1); | |
847 | if (list) { | |
848 | struct mdinfo *disks = list->devs; | |
849 | if (disks) | |
850 | dev = makedev(disks->disk.major, disks->disk.minor); | |
851 | sysfs_free(list); | |
5739e0d0 | 852 | } |
326727d9 | 853 | st->ss->free_super(st); |
5739e0d0 N |
854 | return dev; |
855 | } | |
856 | ||
857 | ||
e0bd6a96 | 858 | static void try_spare_migration(struct state *statelist, struct alert_info *info) |
2e0172b1 | 859 | { |
66f5c4b6 N |
860 | struct state *from; |
861 | struct state *st; | |
c3621c0a ML |
862 | |
863 | link_containers_with_subarrays(statelist); | |
66f5c4b6 N |
864 | for (st = statelist; st; st = st->next) |
865 | if (st->active < st->raid && | |
ef15641f | 866 | st->spare == 0 && !st->err) { |
e78dda3b N |
867 | struct domainlist *domlist = NULL; |
868 | int d; | |
66f5c4b6 | 869 | struct state *to = st; |
f0b85306 | 870 | unsigned long long min_size; |
66f5c4b6 | 871 | |
c0dc0ad5 CA |
872 | if (to->parent_dev != NoMdDev && !to->parent) |
873 | /* subarray monitored without parent container | |
874 | * we can't move spares here */ | |
875 | continue; | |
876 | ||
66f5c4b6 N |
877 | if (to->parent) |
878 | /* member of a container */ | |
879 | to = to->parent; | |
e78dda3b | 880 | |
de697acc AC |
881 | if (get_min_spare_size_required(to, &min_size)) |
882 | continue; | |
e9a2ac02 AC |
883 | if (to->metadata->ss->external) { |
884 | /* We must make sure there is | |
885 | * no suitable spare in container already. | |
886 | * If there is we don't add more */ | |
887 | dev_t devid = container_choose_spare( | |
a1e49d69 | 888 | to, to, NULL, min_size, st->active); |
e9a2ac02 AC |
889 | if (devid > 0) |
890 | continue; | |
891 | } | |
b0599bda | 892 | for (d = 0; d < MAX_DISKS; d++) |
e78dda3b N |
893 | if (to->devid[d]) |
894 | domainlist_add_dev(&domlist, | |
895 | to->devid[d], | |
896 | to->metadata->ss->name); | |
897 | if (to->spare_group) | |
898 | domain_add(&domlist, to->spare_group); | |
5ec0f373 ML |
899 | /* |
900 | * No spare migration if the destination | |
901 | * has no domain. Skip this array. | |
902 | */ | |
903 | if (!domlist) | |
904 | continue; | |
0fa21e85 | 905 | for (from=statelist ; from ; from=from->next) { |
0f0749ad | 906 | dev_t devid; |
5ec0f373 | 907 | if (!check_donor(from, to)) |
0fa21e85 | 908 | continue; |
5739e0d0 N |
909 | if (from->metadata->ss->external) |
910 | devid = container_choose_spare( | |
a1e49d69 | 911 | from, to, domlist, min_size, 0); |
5739e0d0 | 912 | else |
f0b85306 AC |
913 | devid = choose_spare(from, to, domlist, |
914 | min_size); | |
0fa21e85 | 915 | if (devid > 0 |
d52bb542 AC |
916 | && move_spare(from->devname, to->devname, devid)) { |
917 | alert("MoveSpare", to->devname, from->devname, info); | |
918 | break; | |
919 | } | |
0fa21e85 | 920 | } |
e78dda3b | 921 | domain_free(domlist); |
2e0172b1 N |
922 | } |
923 | } | |
c3621c0a ML |
924 | |
925 | /* search the statelist to connect external | |
926 | * metadata subarrays with their containers | |
927 | * We always completely rebuild the tree from scratch as | |
928 | * that is safest considering the possibility of entries | |
929 | * disappearing or changing. | |
930 | */ | |
931 | static void link_containers_with_subarrays(struct state *list) | |
932 | { | |
933 | struct state *st; | |
934 | struct state *cont; | |
935 | for (st = list; st; st = st->next) { | |
936 | st->parent = NULL; | |
937 | st->subarray = NULL; | |
938 | } | |
939 | for (st = list; st; st = st->next) | |
940 | if (st->parent_dev != NoMdDev) | |
941 | for (cont = list; cont; cont = cont->next) | |
942 | if (!cont->err && | |
943 | cont->parent_dev == NoMdDev && | |
944 | cont->devnum == st->parent_dev) { | |
945 | st->parent = cont; | |
946 | st->subarray = cont->subarray; | |
947 | cont->subarray = st; | |
948 | break; | |
949 | } | |
950 | } | |
951 | ||
b90c0e9a NB |
952 | /* Not really Monitor but ... */ |
953 | int Wait(char *dev) | |
954 | { | |
955 | struct stat stb; | |
956 | int devnum; | |
957 | int rv = 1; | |
958 | ||
959 | if (stat(dev, &stb) != 0) { | |
e7b84f9d | 960 | pr_err("Cannot find %s: %s\n", dev, |
b90c0e9a NB |
961 | strerror(errno)); |
962 | return 2; | |
963 | } | |
c94709e8 | 964 | devnum = stat2devnum(&stb); |
b90c0e9a NB |
965 | |
966 | while(1) { | |
967 | struct mdstat_ent *ms = mdstat_read(1, 0); | |
968 | struct mdstat_ent *e; | |
969 | ||
970 | for (e=ms ; e; e=e->next) | |
971 | if (e->devnum == devnum) | |
972 | break; | |
973 | ||
974 | if (!e || e->percent < 0) { | |
e7783ee6 | 975 | if (e && e->metadata_version && |
c94709e8 DW |
976 | strncmp(e->metadata_version, "external:", 9) == 0) { |
977 | if (is_subarray(&e->metadata_version[9])) | |
978 | ping_monitor(&e->metadata_version[9]); | |
979 | else | |
983fff45 | 980 | ping_monitor_by_id(devnum); |
c94709e8 | 981 | } |
b90c0e9a NB |
982 | free_mdstat(ms); |
983 | return rv; | |
984 | } | |
89a10d84 | 985 | free_mdstat(ms); |
b90c0e9a NB |
986 | rv = 0; |
987 | mdstat_wait(5); | |
988 | } | |
989 | } | |
679eb882 N |
990 | |
991 | #ifndef MDASSEMBLE | |
992 | ||
993 | static char *clean_states[] = { | |
994 | "clear", "inactive", "readonly", "read-auto", "clean", NULL }; | |
995 | ||
996 | int WaitClean(char *dev, int sock, int verbose) | |
997 | { | |
998 | int fd; | |
999 | struct mdinfo *mdi; | |
1000 | int rv = 1; | |
1001 | int devnum; | |
1002 | ||
1003 | fd = open(dev, O_RDONLY); | |
1004 | if (fd < 0) { | |
1005 | if (verbose) | |
e7b84f9d | 1006 | pr_err("Couldn't open %s: %s\n", dev, strerror(errno)); |
679eb882 N |
1007 | return 1; |
1008 | } | |
1009 | ||
1010 | devnum = fd2devnum(fd); | |
1011 | mdi = sysfs_read(fd, devnum, GET_VERSION|GET_LEVEL|GET_SAFEMODE); | |
1012 | if (!mdi) { | |
1013 | if (verbose) | |
e7b84f9d N |
1014 | pr_err("Failed to read sysfs attributes for " |
1015 | "%s\n", dev); | |
679eb882 N |
1016 | close(fd); |
1017 | return 0; | |
1018 | } | |
1019 | ||
1020 | switch(mdi->array.level) { | |
1021 | case LEVEL_LINEAR: | |
1022 | case LEVEL_MULTIPATH: | |
1023 | case 0: | |
1024 | /* safemode delay is irrelevant for these levels */ | |
1025 | rv = 0; | |
1026 | } | |
1027 | ||
1028 | /* for internal metadata the kernel handles the final clean | |
1029 | * transition, containers can never be dirty | |
1030 | */ | |
1031 | if (!is_subarray(mdi->text_version)) | |
1032 | rv = 0; | |
1033 | ||
1034 | /* safemode disabled ? */ | |
1035 | if (mdi->safe_mode_delay == 0) | |
1036 | rv = 0; | |
1037 | ||
1038 | if (rv) { | |
1039 | int state_fd = sysfs_open(fd2devnum(fd), NULL, "array_state"); | |
1040 | char buf[20]; | |
1041 | fd_set fds; | |
1042 | struct timeval tm; | |
1043 | ||
1044 | /* minimize the safe_mode_delay and prepare to wait up to 5s | |
1045 | * for writes to quiesce | |
1046 | */ | |
1047 | sysfs_set_safemode(mdi, 1); | |
1048 | tm.tv_sec = 5; | |
1049 | tm.tv_usec = 0; | |
1050 | ||
1051 | FD_ZERO(&fds); | |
1052 | ||
1053 | /* wait for array_state to be clean */ | |
1054 | while (1) { | |
1055 | rv = read(state_fd, buf, sizeof(buf)); | |
1056 | if (rv < 0) | |
1057 | break; | |
1058 | if (sysfs_match_word(buf, clean_states) <= 4) | |
1059 | break; | |
1060 | FD_SET(state_fd, &fds); | |
1061 | rv = select(state_fd + 1, NULL, NULL, &fds, &tm); | |
1062 | if (rv < 0 && errno != EINTR) | |
1063 | break; | |
1064 | lseek(state_fd, 0, SEEK_SET); | |
1065 | } | |
1066 | if (rv < 0) | |
1067 | rv = 1; | |
1068 | else if (fping_monitor(sock) == 0 || | |
1069 | ping_monitor(mdi->text_version) == 0) { | |
1070 | /* we need to ping to close the window between array | |
1071 | * state transitioning to clean and the metadata being | |
1072 | * marked clean | |
1073 | */ | |
1074 | rv = 0; | |
1075 | } else | |
1076 | rv = 1; | |
1077 | if (rv && verbose) | |
e7b84f9d | 1078 | pr_err("Error waiting for %s to be clean\n", |
679eb882 N |
1079 | dev); |
1080 | ||
1081 | /* restore the original safe_mode_delay */ | |
1082 | sysfs_set_safemode(mdi, mdi->safe_mode_delay); | |
1083 | close(state_fd); | |
1084 | } | |
1085 | ||
1086 | sysfs_free(mdi); | |
1087 | close(fd); | |
1088 | ||
1089 | return rv; | |
1090 | } | |
1091 | #endif /* MDASSEMBLE */ |