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Commit | Line | Data |
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6404bb81 | 1 | /* |
da23017d NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
46eca962 | 4 | * |
da23017d NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
6404bb81 | 7 | * published by the Free Software Foundation. |
46eca962 | 8 | * |
da23017d NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
46eca962 | 13 | * |
da23017d NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
6404bb81 NS |
17 | */ |
18 | ||
b08338d7 | 19 | #include "xfs/libxfs.h" |
6404bb81 | 20 | #include <sys/stat.h> |
6404bb81 NS |
21 | #include <sys/wait.h> |
22 | #include <pthread.h> | |
23 | #include <signal.h> | |
24 | #include <stdarg.h> | |
25 | #include "xfs_copy.h" | |
26 | ||
27 | #define rounddown(x, y) (((x)/(y))*(y)) | |
28 | ||
7066fb24 NS |
29 | extern int platform_check_ismounted(char *, char *, struct stat64 *, int); |
30 | ||
6404bb81 NS |
31 | int logfd; |
32 | char *logfile_name; | |
33 | FILE *logerr; | |
34 | char LOGFILE_NAME[] = "/var/tmp/xfs_copy.log.XXXXXX"; | |
35 | ||
36 | char *source_name; | |
37 | int source_fd; | |
38 | ||
39 | unsigned int source_blocksize; /* source filesystem blocksize */ | |
40 | unsigned int source_sectorsize; /* source disk sectorsize */ | |
41 | ||
42 | xfs_agblock_t first_agbno; | |
43 | ||
989b74bc NS |
44 | __uint64_t barcount[11]; |
45 | ||
6404bb81 NS |
46 | unsigned int num_targets; |
47 | target_control *target; | |
48 | ||
49 | wbuf w_buf; | |
50 | wbuf btree_buf; | |
51 | ||
52 | pid_t parent_pid; | |
53 | unsigned int kids; | |
54 | ||
55 | thread_control glob_masks; | |
56 | thread_args *targ; | |
57 | ||
58 | pthread_mutex_t mainwait; | |
59 | ||
60 | #define ACTIVE 1 | |
61 | #define INACTIVE 2 | |
62 | ||
989b74bc NS |
63 | xfs_off_t write_log_trailer(int fd, wbuf *w, xfs_mount_t *mp); |
64 | xfs_off_t write_log_header(int fd, wbuf *w, xfs_mount_t *mp); | |
6404bb81 NS |
65 | |
66 | /* general purpose message reporting routine */ | |
67 | ||
68 | #define OUT 0x01 /* use stdout stream */ | |
69 | #define ERR 0x02 /* use stderr stream */ | |
70 | #define LOG 0x04 /* use logerr stream */ | |
71 | #define PRE 0x08 /* append strerror string */ | |
72 | #define LAST 0x10 /* final message we print */ | |
73 | ||
74 | void | |
75 | do_message(int flags, int code, const char *fmt, ...) | |
76 | { | |
77 | va_list ap; | |
78 | int eek = 0; | |
79 | ||
6f9ef386 TS |
80 | if (flags & LOG) { |
81 | va_start(ap, fmt); | |
6404bb81 NS |
82 | if (vfprintf(logerr, fmt, ap) <= 0) |
83 | eek = 1; | |
6f9ef386 TS |
84 | va_end(ap); |
85 | } | |
6404bb81 NS |
86 | if (eek) |
87 | flags |= ERR; /* failed, force stderr */ | |
6f9ef386 TS |
88 | if (flags & ERR) { |
89 | va_start(ap, fmt); | |
6404bb81 | 90 | vfprintf(stderr, fmt, ap); |
6f9ef386 TS |
91 | va_end(ap); |
92 | } else if (flags & OUT) { | |
93 | va_start(ap, fmt); | |
6404bb81 | 94 | vfprintf(stdout, fmt, ap); |
6f9ef386 TS |
95 | va_end(ap); |
96 | } | |
6404bb81 NS |
97 | |
98 | if (flags & PRE) { | |
99 | do_message(flags & ~PRE, 0, ": %s\n", strerror(code)); | |
100 | if (flags & LAST) | |
101 | fprintf(stderr, | |
102 | _("Check logfile \"%s\" for more details\n"), | |
103 | logfile_name); | |
104 | } | |
105 | ||
106 | /* logfile is broken, force a write to stderr */ | |
107 | if (eek) { | |
108 | fprintf(stderr, _("%s: could not write to logfile \"%s\".\n"), | |
109 | progname, logfile_name); | |
110 | fprintf(stderr, | |
111 | _("Aborting XFS copy -- logfile error -- reason: %s\n"), | |
112 | strerror(errno)); | |
113 | pthread_exit(NULL); | |
114 | } | |
115 | } | |
116 | ||
117 | #define do_out(args...) do_message(OUT|LOG, 0, ## args) | |
118 | #define do_log(args...) do_message(ERR|LOG, 0, ## args) | |
119 | #define do_warn(args...) do_message(LOG, 0, ## args) | |
120 | #define do_error(e,s) do_message(ERR|LOG|PRE, e, s) | |
121 | #define do_fatal(e,s) do_message(ERR|LOG|PRE|LAST, e, s) | |
122 | #define do_vfatal(e,s,args...) do_message(ERR|LOG|PRE|LAST, e, s, ## args) | |
a92e6823 | 123 | #define die_perror() \ |
989b74bc NS |
124 | do { \ |
125 | do_message(ERR|LOG|PRE|LAST, errno, \ | |
126 | _("Aborting XFS copy - reason")); \ | |
127 | exit(1); \ | |
128 | } while (0) | |
6404bb81 NS |
129 | |
130 | void | |
131 | check_errors(void) | |
132 | { | |
989b74bc | 133 | int i, first_error = 0; |
6404bb81 NS |
134 | |
135 | for (i = 0; i < num_targets; i++) { | |
136 | if (target[i].state == INACTIVE) { | |
137 | if (first_error == 0) { | |
138 | first_error++; | |
139 | do_log( | |
140 | _("THE FOLLOWING COPIES FAILED TO COMPLETE\n")); | |
141 | } | |
142 | do_log(" %s -- ", target[i].name); | |
143 | if (target[i].err_type == 0) | |
144 | do_log(_("write error")); | |
145 | else | |
146 | do_log(_("lseek64 error")); | |
147 | do_log(_(" at offset %lld\n"), target[i].position); | |
148 | } | |
149 | } | |
150 | if (first_error == 0) { | |
151 | fprintf(stdout, _("All copies completed.\n")); | |
152 | fflush(NULL); | |
153 | } else { | |
154 | fprintf(stderr, _("See \"%s\" for more details.\n"), | |
155 | logfile_name); | |
156 | exit(1); | |
157 | } | |
158 | } | |
159 | ||
160 | /* | |
161 | * don't have to worry about alignment and mins because those | |
162 | * are taken care of when the buffer's read in | |
163 | */ | |
989b74bc NS |
164 | int |
165 | do_write(thread_args *args) | |
166 | { | |
167 | int res, error = 0; | |
168 | ||
169 | if (target[args->id].position != w_buf.position) { | |
170 | if (lseek64(args->fd, w_buf.position, SEEK_SET) < 0) { | |
171 | error = target[args->id].err_type = 1; | |
172 | } else { | |
173 | target[args->id].position = w_buf.position; | |
174 | } | |
175 | } | |
176 | ||
177 | if ((res = write(target[args->id].fd, w_buf.data, | |
178 | w_buf.length)) == w_buf.length) { | |
179 | target[args->id].position += res; | |
180 | } else { | |
181 | error = 2; | |
182 | } | |
183 | ||
184 | if (error) { | |
185 | target[args->id].error = errno; | |
186 | target[args->id].position = w_buf.position; | |
187 | } | |
188 | return error; | |
189 | } | |
6404bb81 NS |
190 | |
191 | void * | |
192 | begin_reader(void *arg) | |
193 | { | |
194 | thread_args *args = arg; | |
6404bb81 NS |
195 | |
196 | for (;;) { | |
197 | pthread_mutex_lock(&args->wait); | |
989b74bc | 198 | if (do_write(args)) |
6404bb81 | 199 | goto handle_error; |
6404bb81 NS |
200 | pthread_mutex_lock(&glob_masks.mutex); |
201 | if (--glob_masks.num_working == 0) | |
202 | pthread_mutex_unlock(&mainwait); | |
203 | pthread_mutex_unlock(&glob_masks.mutex); | |
204 | } | |
205 | /* NOTREACHED */ | |
206 | ||
207 | handle_error: | |
208 | /* error will be logged by primary thread */ | |
209 | ||
6404bb81 NS |
210 | pthread_mutex_lock(&glob_masks.mutex); |
211 | target[args->id].state = INACTIVE; | |
212 | if (--glob_masks.num_working == 0) | |
213 | pthread_mutex_unlock(&mainwait); | |
214 | pthread_mutex_unlock(&glob_masks.mutex); | |
215 | pthread_exit(NULL); | |
32a82561 | 216 | return NULL; |
6404bb81 NS |
217 | } |
218 | ||
6404bb81 | 219 | void |
5e656dbb | 220 | handler(int sig) |
6404bb81 | 221 | { |
d0bbcbcb | 222 | pid_t pid; |
6404bb81 NS |
223 | int status, i; |
224 | ||
225 | pid = wait(&status); | |
226 | ||
227 | kids--; | |
228 | ||
229 | for (i = 0; i < num_targets; i++) { | |
230 | if (target[i].pid == pid) { | |
231 | if (target[i].state == INACTIVE) { | |
232 | /* thread got an I/O error */ | |
233 | ||
234 | if (target[i].err_type == 0) { | |
235 | do_warn( | |
236 | _("%s: write error on target %d \"%s\" at offset %lld\n"), | |
237 | progname, i, target[i].name, | |
238 | target[i].position); | |
239 | } else { | |
240 | do_warn( | |
241 | _("%s: lseek64 error on target %d \"%s\" at offset %lld\n"), | |
242 | progname, i, target[i].name, | |
243 | target[i].position); | |
244 | } | |
245 | ||
246 | do_vfatal(target[i].error, | |
247 | _("Aborting target %d - reason"), i); | |
248 | ||
249 | if (kids == 0) { | |
250 | do_log( | |
251 | _("Aborting XFS copy - no more targets.\n")); | |
252 | check_errors(); | |
253 | pthread_exit(NULL); | |
254 | } | |
255 | ||
32a82561 | 256 | signal(SIGCHLD, handler); |
6404bb81 NS |
257 | return; |
258 | } else { | |
259 | /* it just croaked it bigtime, log it */ | |
260 | ||
261 | do_warn( | |
262 | _("%s: thread %d died unexpectedly, target \"%s\" incomplete\n"), | |
263 | progname, i, target[i].name); | |
989b74bc | 264 | do_warn(_("%s: offset was probably %lld\n"), |
6404bb81 NS |
265 | progname, target[i].position); |
266 | do_fatal(target[i].error, | |
267 | _("Aborting XFS copy - reason")); | |
268 | pthread_exit(NULL); | |
269 | } | |
270 | } | |
271 | } | |
272 | ||
273 | /* unknown child -- something very wrong */ | |
274 | ||
275 | do_warn(_("%s: Unknown child died (should never happen!)\n"), progname); | |
276 | die_perror(); | |
277 | pthread_exit(NULL); | |
32a82561 | 278 | signal(SIGCHLD, handler); |
6404bb81 NS |
279 | } |
280 | ||
281 | void | |
282 | usage(void) | |
283 | { | |
284 | fprintf(stderr, | |
30626ef6 | 285 | _("Usage: %s [-bdV] [-L logfile] source target [target ...]\n"), |
6404bb81 NS |
286 | progname); |
287 | exit(1); | |
288 | } | |
289 | ||
6404bb81 | 290 | void |
989b74bc NS |
291 | init_bar(__uint64_t source_blocks) |
292 | { | |
293 | int i; | |
294 | ||
295 | for (i = 0; i < 11; i++) | |
296 | barcount[i] = (source_blocks/10)*i; | |
297 | } | |
298 | ||
299 | int | |
300 | bump_bar(int tenths, __uint64_t numblocks) | |
6404bb81 | 301 | { |
989b74bc NS |
302 | static char *bar[11] = { |
303 | " 0% ", | |
304 | " ... 10% ", | |
305 | " ... 20% ", | |
306 | " ... 30% ", | |
307 | " ... 40% ", | |
308 | " ... 50% ", | |
309 | " ... 60% ", | |
310 | " ... 70% ", | |
311 | " ... 80% ", | |
312 | " ... 90% ", | |
313 | " ... 100%\n\n", | |
314 | }; | |
315 | ||
316 | if (tenths > 10) { | |
317 | printf("%s", bar[10]); | |
318 | fflush(stdout); | |
319 | } else { | |
320 | while (tenths < 10 && numblocks > barcount[tenths]) { | |
321 | printf("%s", bar[tenths]); | |
322 | fflush(stdout); | |
323 | tenths++; | |
324 | } | |
325 | } | |
326 | return tenths; | |
6404bb81 NS |
327 | } |
328 | ||
329 | static xfs_off_t source_position = -1; | |
330 | ||
331 | wbuf * | |
332 | wbuf_init(wbuf *buf, int data_size, int data_align, int min_io_size, int id) | |
333 | { | |
44e9ee90 NS |
334 | ASSERT(data_size % BBSIZE == 0); |
335 | while ((buf->data = memalign(data_align, data_size)) == NULL) { | |
336 | data_size >>= 1; | |
337 | if (data_size < min_io_size) | |
338 | return NULL; | |
339 | } | |
6404bb81 NS |
340 | ASSERT(min_io_size % BBSIZE == 0); |
341 | buf->min_io_size = min_io_size; | |
44e9ee90 NS |
342 | buf->size = data_size; |
343 | buf->id = id; | |
6404bb81 NS |
344 | return buf; |
345 | } | |
346 | ||
347 | void | |
348 | read_wbuf(int fd, wbuf *buf, xfs_mount_t *mp) | |
349 | { | |
350 | int res = 0; | |
351 | xfs_off_t lres = 0; | |
352 | xfs_off_t newpos; | |
353 | size_t diff; | |
354 | ||
355 | newpos = rounddown(buf->position, (xfs_off_t) buf->min_io_size); | |
356 | ||
357 | if (newpos != buf->position) { | |
358 | diff = buf->position - newpos; | |
359 | buf->position = newpos; | |
360 | ||
361 | buf->length += diff; | |
362 | } | |
363 | ||
364 | if (source_position != buf->position) { | |
365 | lres = lseek64(fd, buf->position, SEEK_SET); | |
366 | if (lres < 0LL) { | |
367 | do_warn(_("%s: lseek64 failure at offset %lld\n"), | |
368 | progname, source_position); | |
369 | die_perror(); | |
370 | } | |
371 | source_position = buf->position; | |
372 | } | |
373 | ||
374 | ASSERT(source_position % source_sectorsize == 0); | |
375 | ||
376 | /* round up length for direct I/O if necessary */ | |
377 | ||
378 | if (buf->length % buf->min_io_size != 0) | |
379 | buf->length = roundup(buf->length, buf->min_io_size); | |
380 | ||
381 | if (buf->length > buf->size) { | |
382 | do_warn(_("assert error: buf->length = %d, buf->size = %d\n"), | |
383 | buf->length, buf->size); | |
2277ce35 | 384 | exit(1); |
6404bb81 NS |
385 | } |
386 | ||
387 | if ((res = read(fd, buf->data, buf->length)) < 0) { | |
388 | do_warn(_("%s: read failure at offset %lld\n"), | |
389 | progname, source_position); | |
390 | die_perror(); | |
391 | } | |
392 | ||
393 | if (res < buf->length && | |
394 | source_position + res == mp->m_sb.sb_dblocks * source_blocksize) | |
395 | res = buf->length; | |
396 | else | |
397 | ASSERT(res == buf->length); | |
398 | source_position += res; | |
399 | buf->length = res; | |
400 | } | |
401 | ||
989b74bc | 402 | void |
6404bb81 NS |
403 | read_ag_header(int fd, xfs_agnumber_t agno, wbuf *buf, ag_header_t *ag, |
404 | xfs_mount_t *mp, int blocksize, int sectorsize) | |
405 | { | |
406 | xfs_daddr_t off; | |
407 | int length; | |
408 | xfs_off_t newpos; | |
409 | size_t diff; | |
410 | ||
411 | /* initial settings */ | |
412 | ||
413 | diff = 0; | |
414 | off = XFS_AG_DADDR(mp, agno, XFS_SB_DADDR); | |
415 | buf->position = (xfs_off_t) off * (xfs_off_t) BBSIZE; | |
416 | length = buf->length = first_agbno * blocksize; | |
6bddecbc DC |
417 | if (length == 0) { |
418 | do_log(_("ag header buffer invalid!\n")); | |
419 | exit(1); | |
420 | } | |
44e9ee90 | 421 | |
6404bb81 NS |
422 | /* handle alignment stuff */ |
423 | ||
424 | newpos = rounddown(buf->position, (xfs_off_t) buf->min_io_size); | |
425 | if (newpos != buf->position) { | |
426 | diff = buf->position - newpos; | |
427 | buf->position = newpos; | |
428 | buf->length += diff; | |
429 | } | |
430 | ||
431 | /* round up length for direct I/O if necessary */ | |
432 | ||
433 | if (buf->length % buf->min_io_size != 0) | |
434 | buf->length = roundup(buf->length, buf->min_io_size); | |
435 | ||
6404bb81 NS |
436 | read_wbuf(fd, buf, mp); |
437 | ASSERT(buf->length >= length); | |
438 | ||
5e656dbb BN |
439 | ag->xfs_sb = (xfs_dsb_t *) (buf->data + diff); |
440 | ASSERT(be32_to_cpu(ag->xfs_sb->sb_magicnum) == XFS_SB_MAGIC); | |
6404bb81 | 441 | ag->xfs_agf = (xfs_agf_t *) (buf->data + diff + sectorsize); |
5e656dbb BN |
442 | ASSERT(be32_to_cpu(ag->xfs_agf->agf_magicnum) == XFS_AGF_MAGIC); |
443 | ag->xfs_agi = (xfs_agi_t *) (buf->data + diff + 2 * sectorsize); | |
444 | ASSERT(be32_to_cpu(ag->xfs_agi->agi_magicnum) == XFS_AGI_MAGIC); | |
445 | ag->xfs_agfl = (xfs_agfl_t *) (buf->data + diff + 3 * sectorsize); | |
6404bb81 NS |
446 | } |
447 | ||
989b74bc | 448 | |
6404bb81 NS |
449 | void |
450 | write_wbuf(void) | |
451 | { | |
452 | int i; | |
453 | ||
454 | /* verify target threads */ | |
455 | for (i = 0; i < num_targets; i++) | |
456 | if (target[i].state != INACTIVE) | |
457 | glob_masks.num_working++; | |
458 | ||
459 | /* release target threads */ | |
460 | for (i = 0; i < num_targets; i++) | |
461 | if (target[i].state != INACTIVE) | |
462 | pthread_mutex_unlock(&targ[i].wait); /* wake up */ | |
463 | ||
32a82561 | 464 | sigrelse(SIGCHLD); |
6404bb81 | 465 | pthread_mutex_lock(&mainwait); |
32a82561 | 466 | sighold(SIGCHLD); |
6404bb81 NS |
467 | } |
468 | ||
469 | ||
470 | int | |
471 | main(int argc, char **argv) | |
472 | { | |
989b74bc NS |
473 | int i, j; |
474 | int howfar = 0; | |
6404bb81 | 475 | int open_flags; |
989b74bc | 476 | xfs_off_t pos, end_pos; |
6404bb81 | 477 | size_t length; |
263b5376 | 478 | int c; |
0b9a02a6 | 479 | __uint64_t size, sizeb; |
6404bb81 | 480 | __uint64_t numblocks = 0; |
6404bb81 NS |
481 | int wblocks = 0; |
482 | int num_threads = 0; | |
483 | struct dioattr d; | |
484 | int wbuf_size; | |
485 | int wbuf_align; | |
486 | int wbuf_miniosize; | |
487 | int source_is_file = 0; | |
488 | int buffered_output = 0; | |
84c032c3 | 489 | int duplicate = 0; |
6404bb81 NS |
490 | uint btree_levels, current_level; |
491 | ag_header_t ag_hdr; | |
492 | xfs_mount_t *mp; | |
493 | xfs_mount_t mbuf; | |
494 | xfs_buf_t *sbp; | |
495 | xfs_sb_t *sb; | |
496 | xfs_agnumber_t num_ags, agno; | |
497 | xfs_agblock_t bno; | |
498 | xfs_daddr_t begin, next_begin, ag_begin, new_begin, ag_end; | |
b3563c19 | 499 | struct xfs_btree_block *block; |
6404bb81 NS |
500 | xfs_alloc_ptr_t *ptr; |
501 | xfs_alloc_rec_t *rec_ptr; | |
502 | extern char *optarg; | |
503 | extern int optind; | |
504 | libxfs_init_t xargs; | |
505 | thread_args *tcarg; | |
6404bb81 NS |
506 | struct stat64 statbuf; |
507 | ||
508 | progname = basename(argv[0]); | |
509 | ||
510 | setlocale(LC_ALL, ""); | |
511 | bindtextdomain(PACKAGE, LOCALEDIR); | |
512 | textdomain(PACKAGE); | |
513 | ||
514 | while ((c = getopt(argc, argv, "bdL:V")) != EOF) { | |
515 | switch (c) { | |
516 | case 'b': | |
517 | buffered_output = 1; | |
518 | break; | |
519 | case 'd': | |
84c032c3 | 520 | duplicate = 1; |
6404bb81 NS |
521 | break; |
522 | case 'L': | |
523 | logfile_name = optarg; | |
524 | break; | |
525 | case 'V': | |
526 | printf(_("%s version %s\n"), progname, VERSION); | |
527 | exit(0); | |
528 | case '?': | |
529 | usage(); | |
530 | } | |
531 | } | |
532 | ||
533 | if (argc - optind < 2) | |
534 | usage(); | |
535 | ||
536 | if (logfile_name) { | |
537 | logfd = open(logfile_name, O_CREAT|O_WRONLY|O_EXCL, 0600); | |
538 | } else { | |
539 | logfile_name = LOGFILE_NAME; | |
540 | logfd = mkstemp(logfile_name); | |
541 | } | |
542 | ||
543 | if (logfd < 0) { | |
544 | fprintf(stderr, _("%s: couldn't open log file \"%s\"\n"), | |
545 | progname, logfile_name); | |
546 | perror(_("Aborting XFS copy - reason")); | |
547 | exit(1); | |
548 | } | |
549 | ||
550 | if ((logerr = fdopen(logfd, "w")) == NULL) { | |
551 | fprintf(stderr, _("%s: couldn't set up logfile stream\n"), | |
552 | progname); | |
553 | perror(_("Aborting XFS copy - reason")); | |
554 | exit(1); | |
555 | } | |
556 | ||
557 | source_name = argv[optind]; | |
558 | source_fd = -1; | |
559 | optind++; | |
560 | ||
561 | num_targets = argc - optind; | |
562 | if ((target = malloc(sizeof(target_control) * num_targets)) == NULL) { | |
563 | do_log(_("Couldn't allocate target array\n")); | |
564 | die_perror(); | |
565 | } | |
566 | for (i = 0; optind < argc; i++, optind++) { | |
567 | target[i].name = argv[optind]; | |
568 | target[i].fd = -1; | |
569 | target[i].position = -1; | |
570 | target[i].state = INACTIVE; | |
571 | target[i].error = 0; | |
572 | target[i].err_type = 0; | |
573 | } | |
574 | ||
575 | parent_pid = getpid(); | |
576 | ||
6404bb81 NS |
577 | /* open up source -- is it a file? */ |
578 | ||
579 | open_flags = O_RDONLY; | |
580 | ||
581 | if ((source_fd = open(source_name, open_flags)) < 0) { | |
582 | do_log(_("%s: couldn't open source \"%s\"\n"), | |
583 | progname, source_name); | |
584 | die_perror(); | |
585 | } | |
586 | ||
587 | if (fstat64(source_fd, &statbuf) < 0) { | |
588 | do_log(_("%s: couldn't stat source \"%s\"\n"), | |
589 | progname, source_name); | |
590 | die_perror(); | |
591 | } | |
592 | ||
593 | if (S_ISREG(statbuf.st_mode)) | |
594 | source_is_file = 1; | |
595 | ||
596 | if (source_is_file && platform_test_xfs_fd(source_fd)) { | |
597 | if (fcntl(source_fd, F_SETFL, open_flags | O_DIRECT) < 0) { | |
598 | do_log(_("%s: Cannot set direct I/O flag on \"%s\".\n"), | |
599 | progname, source_name); | |
600 | die_perror(); | |
601 | } | |
602 | if (xfsctl(source_name, source_fd, XFS_IOC_DIOINFO, &d) < 0) { | |
603 | do_log(_("%s: xfsctl on file \"%s\" failed.\n"), | |
604 | progname, source_name); | |
605 | die_perror(); | |
606 | } | |
607 | ||
608 | wbuf_align = d.d_mem; | |
44e9ee90 | 609 | wbuf_size = MIN(d.d_maxiosz, 1 * 1024 * 1024); |
6404bb81 NS |
610 | wbuf_miniosize = d.d_miniosz; |
611 | } else { | |
612 | /* set arbitrary I/O params, miniosize at least 1 disk block */ | |
613 | ||
44e9ee90 NS |
614 | wbuf_align = getpagesize(); |
615 | wbuf_size = 1 * 1024 * 1024; | |
6404bb81 NS |
616 | wbuf_miniosize = -1; /* set after mounting source fs */ |
617 | } | |
618 | ||
619 | if (!source_is_file) { | |
620 | /* | |
621 | * check to make sure a filesystem isn't mounted | |
622 | * on the device | |
623 | */ | |
32a82561 | 624 | if (platform_check_ismounted(source_name, NULL, &statbuf, 0)) { |
6404bb81 NS |
625 | do_log( |
626 | _("%s: Warning -- a filesystem is mounted on the source device.\n"), | |
627 | progname); | |
628 | do_log( | |
629 | _("\t\tGenerated copies may be corrupt unless the source is\n")); | |
630 | do_log( | |
631 | _("\t\tunmounted or mounted read-only. Copy proceeding...\n")); | |
632 | } | |
633 | } | |
634 | ||
635 | /* prepare the libxfs_init structure */ | |
636 | ||
637 | memset(&xargs, 0, sizeof(xargs)); | |
b74a1f6a | 638 | xargs.isdirect = LIBXFS_DIRECT; |
6404bb81 | 639 | xargs.isreadonly = LIBXFS_ISREADONLY; |
6404bb81 NS |
640 | |
641 | if (source_is_file) { | |
642 | xargs.dname = source_name; | |
643 | xargs.disfile = 1; | |
644 | } else | |
645 | xargs.volname = source_name; | |
646 | ||
647 | if (!libxfs_init(&xargs)) { | |
648 | do_log(_("%s: couldn't initialize XFS library\n" | |
649 | "%s: Aborting.\n"), progname, progname); | |
650 | exit(1); | |
651 | } | |
652 | ||
653 | /* prepare the mount structure */ | |
654 | ||
6404bb81 | 655 | memset(&mbuf, 0, sizeof(xfs_mount_t)); |
75c8b434 | 656 | libxfs_buftarg_init(&mbuf, xargs.ddev, xargs.logdev, xargs.rtdev); |
c63ce10a ES |
657 | sbp = libxfs_readbuf(mbuf.m_ddev_targp, XFS_SB_DADDR, |
658 | 1 << (XFS_MAX_SECTORSIZE_LOG - BBSHIFT), | |
659 | 0, &xfs_sb_buf_ops); | |
6404bb81 | 660 | sb = &mbuf.m_sb; |
5e656dbb | 661 | libxfs_sb_from_disk(sb, XFS_BUF_TO_SBP(sbp)); |
6404bb81 | 662 | |
a872b622 ES |
663 | /* |
664 | * For now, V5 superblock filesystems are not supported without -d; | |
665 | * we do not have the infrastructure yet to fix CRCs when a new UUID | |
666 | * is generated. | |
667 | */ | |
668 | if (xfs_sb_version_hascrc(sb) && !duplicate) { | |
669 | do_log(_("%s: Cannot yet copy V5 fs without '-d'\n"), progname); | |
670 | exit(1); | |
671 | } | |
672 | ||
9aa57116 | 673 | mp = libxfs_mount(&mbuf, sb, xargs.ddev, xargs.logdev, xargs.rtdev, 0); |
6404bb81 NS |
674 | if (mp == NULL) { |
675 | do_log(_("%s: %s filesystem failed to initialize\n" | |
676 | "%s: Aborting.\n"), progname, source_name, progname); | |
677 | exit(1); | |
678 | } else if (mp->m_sb.sb_inprogress) { | |
679 | do_log(_("%s %s filesystem failed to initialize\n" | |
680 | "%s: Aborting.\n"), progname, source_name, progname); | |
681 | exit(1); | |
682 | } else if (mp->m_sb.sb_logstart == 0) { | |
683 | do_log(_("%s: %s has an external log.\n%s: Aborting.\n"), | |
684 | progname, source_name, progname); | |
685 | exit(1); | |
686 | } else if (mp->m_sb.sb_rextents != 0) { | |
687 | do_log(_("%s: %s has a real-time section.\n" | |
688 | "%s: Aborting.\n"), progname, source_name, progname); | |
689 | exit(1); | |
690 | } | |
691 | ||
692 | source_blocksize = mp->m_sb.sb_blocksize; | |
693 | source_sectorsize = mp->m_sb.sb_sectsize; | |
694 | ||
695 | if (wbuf_miniosize == -1) | |
696 | wbuf_miniosize = source_sectorsize; | |
697 | ||
698 | ASSERT(source_blocksize % source_sectorsize == 0); | |
699 | ASSERT(source_sectorsize % BBSIZE == 0); | |
700 | ||
263b5376 | 701 | if (source_blocksize < source_sectorsize) { |
6404bb81 NS |
702 | do_log(_("Error: filesystem block size is smaller than the" |
703 | " disk sectorsize.\nAborting XFS copy now.\n")); | |
704 | exit(1); | |
705 | } | |
706 | ||
263b5376 | 707 | first_agbno = XFS_AGFL_BLOCK(mp) + 1; |
6404bb81 | 708 | |
6404bb81 NS |
709 | /* now open targets */ |
710 | ||
711 | open_flags = O_RDWR; | |
712 | ||
713 | for (i = 0; i < num_targets; i++) { | |
714 | int write_last_block = 0; | |
44e9ee90 | 715 | |
6404bb81 NS |
716 | if (stat64(target[i].name, &statbuf) < 0) { |
717 | /* ok, assume it's a file and create it */ | |
718 | ||
719 | do_out(_("Creating file %s\n"), target[i].name); | |
720 | ||
721 | open_flags |= O_CREAT; | |
722 | if (!buffered_output) | |
723 | open_flags |= O_DIRECT; | |
724 | write_last_block = 1; | |
725 | } else if (S_ISREG(statbuf.st_mode)) { | |
726 | open_flags |= O_TRUNC; | |
727 | if (!buffered_output) | |
728 | open_flags |= O_DIRECT; | |
729 | write_last_block = 1; | |
730 | } else { | |
731 | /* | |
732 | * check to make sure a filesystem isn't mounted | |
733 | * on the device | |
734 | */ | |
32a82561 NS |
735 | if (platform_check_ismounted(target[i].name, |
736 | NULL, &statbuf, 0)) { | |
6404bb81 NS |
737 | do_log(_("%s: a filesystem is mounted " |
738 | "on target device \"%s\".\n" | |
739 | "%s cannot copy to mounted filesystems." | |
740 | " Aborting\n"), | |
741 | progname, target[i].name, progname); | |
742 | exit(1); | |
743 | } | |
744 | } | |
745 | ||
746 | target[i].fd = open(target[i].name, open_flags, 0644); | |
747 | if (target[i].fd < 0) { | |
748 | do_log(_("%s: couldn't open target \"%s\"\n"), | |
749 | progname, target[i].name); | |
750 | die_perror(); | |
751 | } | |
752 | ||
753 | if (write_last_block) { | |
754 | /* ensure regular files are correctly sized */ | |
755 | ||
756 | if (ftruncate64(target[i].fd, mp->m_sb.sb_dblocks * | |
757 | source_blocksize)) { | |
758 | do_log(_("%s: cannot grow data section.\n"), | |
759 | progname); | |
760 | die_perror(); | |
761 | } | |
3422261d NS |
762 | if (platform_test_xfs_fd(target[i].fd)) { |
763 | if (xfsctl(target[i].name, target[i].fd, | |
6404bb81 | 764 | XFS_IOC_DIOINFO, &d) < 0) { |
3422261d NS |
765 | do_log( |
766 | _("%s: xfsctl on \"%s\" failed.\n"), | |
767 | progname, target[i].name); | |
768 | die_perror(); | |
769 | } else { | |
770 | wbuf_align = MAX(wbuf_align, d.d_mem); | |
771 | wbuf_size = MIN(d.d_maxiosz, wbuf_size); | |
772 | wbuf_miniosize = MAX(d.d_miniosz, | |
773 | wbuf_miniosize); | |
774 | } | |
6404bb81 NS |
775 | } |
776 | } else { | |
5e656dbb | 777 | char *lb[XFS_MAX_SECTORSIZE] = { NULL }; |
989b74bc | 778 | off64_t off; |
6404bb81 NS |
779 | |
780 | /* ensure device files are sufficiently large */ | |
781 | ||
989b74bc NS |
782 | off = mp->m_sb.sb_dblocks * source_blocksize; |
783 | off -= sizeof(lb); | |
784 | if (pwrite64(target[i].fd, lb, sizeof(lb), off) < 0) { | |
6404bb81 NS |
785 | do_log(_("%s: failed to write last block\n"), |
786 | progname); | |
787 | do_log(_("\tIs target \"%s\" too small?\n"), | |
788 | target[i].name); | |
789 | die_perror(); | |
790 | } | |
791 | } | |
6404bb81 NS |
792 | } |
793 | ||
794 | /* initialize locks and bufs */ | |
795 | ||
796 | if (pthread_mutex_init(&glob_masks.mutex, NULL) != 0) { | |
797 | do_log(_("Couldn't initialize global thread mask\n")); | |
798 | die_perror(); | |
799 | } | |
800 | glob_masks.num_working = 0; | |
801 | ||
802 | if (wbuf_init(&w_buf, wbuf_size, wbuf_align, | |
803 | wbuf_miniosize, 0) == NULL) { | |
804 | do_log(_("Error initializing wbuf 0\n")); | |
805 | die_perror(); | |
806 | } | |
807 | ||
808 | wblocks = wbuf_size / BBSIZE; | |
809 | ||
989b74bc NS |
810 | if (wbuf_init(&btree_buf, MAX(source_blocksize, wbuf_miniosize), |
811 | wbuf_align, wbuf_miniosize, 1) == NULL) { | |
6404bb81 NS |
812 | do_log(_("Error initializing btree buf 1\n")); |
813 | die_perror(); | |
814 | } | |
815 | ||
816 | if (pthread_mutex_init(&mainwait,NULL) != 0) { | |
817 | do_log(_("Error creating first semaphore.\n")); | |
818 | die_perror(); | |
819 | exit(1); | |
820 | } | |
821 | /* need to start out blocking */ | |
44e9ee90 | 822 | pthread_mutex_lock(&mainwait); |
6404bb81 NS |
823 | |
824 | /* set up sigchild signal handler */ | |
825 | ||
32a82561 NS |
826 | signal(SIGCHLD, handler); |
827 | sighold(SIGCHLD); | |
6404bb81 NS |
828 | |
829 | /* make children */ | |
830 | ||
831 | if ((targ = malloc(num_targets * sizeof(thread_args))) == NULL) { | |
832 | do_log(_("Couldn't malloc space for thread args\n")); | |
833 | die_perror(); | |
834 | exit(1); | |
835 | } | |
836 | ||
837 | for (i = 0, tcarg = targ; i < num_targets; i++, tcarg++) { | |
84c032c3 | 838 | if (!duplicate) |
4d32d744 | 839 | platform_uuid_generate(&tcarg->uuid); |
989b74bc | 840 | else |
4d32d744 | 841 | platform_uuid_copy(&tcarg->uuid, &mp->m_sb.sb_uuid); |
989b74bc | 842 | |
6404bb81 NS |
843 | if (pthread_mutex_init(&tcarg->wait, NULL) != 0) { |
844 | do_log(_("Error creating thread mutex %d\n"), i); | |
845 | die_perror(); | |
846 | exit(1); | |
847 | } | |
848 | /* need to start out blocking */ | |
44e9ee90 | 849 | pthread_mutex_lock(&tcarg->wait); |
6404bb81 NS |
850 | } |
851 | ||
852 | for (i = 0, tcarg = targ; i < num_targets; i++, tcarg++) { | |
853 | tcarg->id = i; | |
854 | tcarg->fd = target[i].fd; | |
855 | ||
856 | target[i].state = ACTIVE; | |
857 | num_threads++; | |
858 | ||
859 | if (pthread_create(&target[i].pid, NULL, | |
860 | begin_reader, (void *)tcarg)) { | |
861 | do_log(_("Error creating thread for target %d\n"), i); | |
862 | die_perror(); | |
863 | } | |
864 | } | |
865 | ||
866 | ASSERT(num_targets == num_threads); | |
867 | ||
868 | /* set up statistics */ | |
869 | ||
870 | num_ags = mp->m_sb.sb_agcount; | |
871 | ||
989b74bc | 872 | init_bar(mp->m_sb.sb_blocksize / BBSIZE |
6404bb81 | 873 | * ((__uint64_t)mp->m_sb.sb_dblocks |
989b74bc | 874 | - (__uint64_t)mp->m_sb.sb_fdblocks + 10 * num_ags)); |
6404bb81 NS |
875 | |
876 | kids = num_targets; | |
6404bb81 NS |
877 | |
878 | for (agno = 0; agno < num_ags && kids > 0; agno++) { | |
879 | /* read in first blocks of the ag */ | |
880 | ||
881 | read_ag_header(source_fd, agno, &w_buf, &ag_hdr, mp, | |
882 | source_blocksize, source_sectorsize); | |
883 | ||
989b74bc | 884 | /* set the in_progress bit for the first AG */ |
6404bb81 NS |
885 | |
886 | if (agno == 0) | |
5e656dbb | 887 | ag_hdr.xfs_sb->sb_inprogress = 1; |
6404bb81 NS |
888 | |
889 | /* save what we need (agf) in the btree buffer */ | |
890 | ||
dab9b8d6 | 891 | memmove(btree_buf.data, ag_hdr.xfs_agf, source_sectorsize); |
6404bb81 NS |
892 | ag_hdr.xfs_agf = (xfs_agf_t *) btree_buf.data; |
893 | btree_buf.length = source_blocksize; | |
894 | ||
895 | /* write the ag header out */ | |
896 | ||
897 | write_wbuf(); | |
898 | ||
899 | /* traverse btree until we get to the leftmost leaf node */ | |
900 | ||
5e656dbb | 901 | bno = be32_to_cpu(ag_hdr.xfs_agf->agf_roots[XFS_BTNUM_BNOi]); |
6404bb81 | 902 | current_level = 0; |
5e656dbb BN |
903 | btree_levels = be32_to_cpu(ag_hdr.xfs_agf-> |
904 | agf_levels[XFS_BTNUM_BNOi]); | |
6404bb81 NS |
905 | |
906 | ag_end = XFS_AGB_TO_DADDR(mp, agno, | |
5e656dbb BN |
907 | be32_to_cpu(ag_hdr.xfs_agf->agf_length) - 1) |
908 | + source_blocksize / BBSIZE; | |
6404bb81 NS |
909 | |
910 | for (;;) { | |
911 | /* none of this touches the w_buf buffer */ | |
912 | ||
6bddecbc DC |
913 | if (current_level >= btree_levels) { |
914 | do_log( | |
915 | _("Error: current level %d >= btree levels %d\n"), | |
916 | current_level, btree_levels); | |
917 | exit(1); | |
918 | } | |
6404bb81 NS |
919 | |
920 | current_level++; | |
921 | ||
922 | btree_buf.position = pos = (xfs_off_t) | |
923 | XFS_AGB_TO_DADDR(mp,agno,bno) << BBSHIFT; | |
924 | btree_buf.length = source_blocksize; | |
925 | ||
926 | read_wbuf(source_fd, &btree_buf, mp); | |
b3563c19 BN |
927 | block = (struct xfs_btree_block *) |
928 | ((char *)btree_buf.data + | |
929 | pos - btree_buf.position); | |
6404bb81 | 930 | |
a872b622 ES |
931 | if (be32_to_cpu(block->bb_magic) != |
932 | (xfs_sb_version_hascrc(&mp->m_sb) ? | |
933 | XFS_ABTB_CRC_MAGIC : XFS_ABTB_MAGIC)) { | |
934 | do_log(_("Bad btree magic 0x%x\n"), | |
935 | be32_to_cpu(block->bb_magic)); | |
936 | exit(1); | |
937 | } | |
6404bb81 | 938 | |
5e656dbb | 939 | if (be16_to_cpu(block->bb_level) == 0) |
6404bb81 NS |
940 | break; |
941 | ||
b3563c19 | 942 | ptr = XFS_ALLOC_PTR_ADDR(mp, block, 1, |
5e656dbb BN |
943 | mp->m_alloc_mxr[1]); |
944 | bno = be32_to_cpu(ptr[0]); | |
6404bb81 NS |
945 | } |
946 | ||
947 | /* align first data copy but don't overwrite ag header */ | |
948 | ||
949 | pos = w_buf.position >> BBSHIFT; | |
950 | length = w_buf.length >> BBSHIFT; | |
951 | next_begin = pos + length; | |
952 | ag_begin = next_begin; | |
953 | ||
954 | ASSERT(w_buf.position % source_sectorsize == 0); | |
955 | ||
956 | /* handle the rest of the ag */ | |
957 | ||
958 | for (;;) { | |
5e656dbb | 959 | if (be16_to_cpu(block->bb_level) != 0) { |
6404bb81 NS |
960 | do_log( |
961 | _("WARNING: source filesystem inconsistent.\n")); | |
962 | do_log( | |
963 | _(" A leaf btree rec isn't a leaf. Aborting now.\n")); | |
964 | exit(1); | |
965 | } | |
966 | ||
b3563c19 | 967 | rec_ptr = XFS_ALLOC_REC_ADDR(mp, block, 1); |
5e656dbb BN |
968 | for (i = 0; i < be16_to_cpu(block->bb_numrecs); |
969 | i++, rec_ptr++) { | |
6404bb81 NS |
970 | /* calculate in daddr's */ |
971 | ||
972 | begin = next_begin; | |
973 | ||
974 | /* | |
975 | * protect against pathological case of a | |
976 | * hole right after the ag header in a | |
977 | * mis-aligned case | |
978 | */ | |
979 | ||
980 | if (begin < ag_begin) | |
981 | begin = ag_begin; | |
982 | ||
983 | /* | |
984 | * round size up to ensure we copy a | |
985 | * range bigger than required | |
986 | */ | |
987 | ||
5e656dbb BN |
988 | sizeb = XFS_AGB_TO_DADDR(mp, agno, |
989 | be32_to_cpu(rec_ptr->ar_startblock)) - | |
990 | begin; | |
6404bb81 NS |
991 | size = roundup(sizeb <<BBSHIFT, wbuf_miniosize); |
992 | if (size > 0) { | |
993 | /* copy extent */ | |
994 | ||
995 | w_buf.position = (xfs_off_t) | |
996 | begin << BBSHIFT; | |
997 | ||
998 | while (size > 0) { | |
999 | /* | |
1000 | * let lower layer do alignment | |
1001 | */ | |
1002 | if (size > w_buf.size) { | |
1003 | w_buf.length = w_buf.size; | |
1004 | size -= w_buf.size; | |
1005 | sizeb -= wblocks; | |
1006 | numblocks += wblocks; | |
1007 | } else { | |
1008 | w_buf.length = size; | |
1009 | numblocks += sizeb; | |
1010 | size = 0; | |
1011 | } | |
1012 | ||
1013 | read_wbuf(source_fd, &w_buf, mp); | |
1014 | write_wbuf(); | |
1015 | ||
1016 | w_buf.position += w_buf.length; | |
1017 | ||
989b74bc NS |
1018 | howfar = bump_bar( |
1019 | howfar, numblocks); | |
6404bb81 NS |
1020 | } |
1021 | } | |
1022 | ||
1023 | /* round next starting point down */ | |
1024 | ||
1025 | new_begin = XFS_AGB_TO_DADDR(mp, agno, | |
5e656dbb BN |
1026 | be32_to_cpu(rec_ptr->ar_startblock) + |
1027 | be32_to_cpu(rec_ptr->ar_blockcount)); | |
6404bb81 NS |
1028 | next_begin = rounddown(new_begin, |
1029 | w_buf.min_io_size >> BBSHIFT); | |
1030 | } | |
1031 | ||
b3563c19 | 1032 | if (be32_to_cpu(block->bb_u.s.bb_rightsib) == NULLAGBLOCK) |
6404bb81 NS |
1033 | break; |
1034 | ||
1035 | /* read in next btree record block */ | |
1036 | ||
1037 | btree_buf.position = pos = (xfs_off_t) | |
5e656dbb | 1038 | XFS_AGB_TO_DADDR(mp, agno, be32_to_cpu( |
b3563c19 | 1039 | block->bb_u.s.bb_rightsib)) << BBSHIFT; |
6404bb81 NS |
1040 | btree_buf.length = source_blocksize; |
1041 | ||
1042 | /* let read_wbuf handle alignment */ | |
1043 | ||
1044 | read_wbuf(source_fd, &btree_buf, mp); | |
1045 | ||
b3563c19 BN |
1046 | block = (struct xfs_btree_block *) |
1047 | ((char *) btree_buf.data + | |
1048 | pos - btree_buf.position); | |
6404bb81 | 1049 | |
5e656dbb | 1050 | ASSERT(be32_to_cpu(block->bb_magic) == XFS_ABTB_MAGIC); |
6404bb81 NS |
1051 | } |
1052 | ||
1053 | /* | |
1054 | * write out range of used blocks after last range | |
1055 | * of free blocks in AG | |
1056 | */ | |
1057 | if (next_begin < ag_end) { | |
1058 | begin = next_begin; | |
1059 | ||
1060 | sizeb = ag_end - begin; | |
1061 | size = roundup(sizeb << BBSHIFT, wbuf_miniosize); | |
1062 | ||
1063 | if (size > 0) { | |
1064 | /* copy extent */ | |
1065 | ||
1066 | w_buf.position = (xfs_off_t) begin << BBSHIFT; | |
1067 | ||
1068 | while (size > 0) { | |
1069 | /* | |
1070 | * let lower layer do alignment | |
1071 | */ | |
1072 | if (size > w_buf.size) { | |
1073 | w_buf.length = w_buf.size; | |
1074 | size -= w_buf.size; | |
1075 | sizeb -= wblocks; | |
1076 | numblocks += wblocks; | |
1077 | } else { | |
1078 | w_buf.length = size; | |
1079 | numblocks += sizeb; | |
1080 | size = 0; | |
1081 | } | |
1082 | ||
1083 | read_wbuf(source_fd, &w_buf, mp); | |
1084 | write_wbuf(); | |
1085 | ||
1086 | w_buf.position += w_buf.length; | |
1087 | ||
989b74bc | 1088 | howfar = bump_bar(howfar, numblocks); |
6404bb81 NS |
1089 | } |
1090 | } | |
1091 | } | |
1092 | } | |
1093 | ||
1094 | if (kids > 0) { | |
84c032c3 | 1095 | if (!duplicate) { |
6404bb81 | 1096 | |
84c032c3 NS |
1097 | /* write a clean log using the specified UUID */ |
1098 | for (j = 0, tcarg = targ; j < num_targets; j++) { | |
1099 | w_buf.owner = tcarg; | |
1100 | w_buf.length = rounddown(w_buf.size, | |
1101 | w_buf.min_io_size); | |
1102 | pos = write_log_header( | |
1103 | source_fd, &w_buf, mp); | |
1104 | end_pos = write_log_trailer( | |
1105 | source_fd, &w_buf, mp); | |
1106 | w_buf.position = pos; | |
1107 | memset(w_buf.data, 0, w_buf.length); | |
1108 | ||
1109 | while (w_buf.position < end_pos) { | |
1110 | do_write(tcarg); | |
1111 | w_buf.position += w_buf.length; | |
1112 | } | |
1113 | tcarg++; | |
989b74bc | 1114 | } |
84c032c3 NS |
1115 | } else { |
1116 | num_ags = 1; | |
989b74bc | 1117 | } |
6404bb81 | 1118 | |
989b74bc NS |
1119 | /* reread and rewrite superblocks (UUID and in-progress) */ |
1120 | /* [backwards, so inprogress bit only updated when done] */ | |
1121 | ||
989b74bc NS |
1122 | for (i = num_ags - 1; i >= 0; i--) { |
1123 | read_ag_header(source_fd, i, &w_buf, &ag_hdr, mp, | |
1124 | source_blocksize, source_sectorsize); | |
1125 | if (i == 0) | |
1126 | ag_hdr.xfs_sb->sb_inprogress = 0; | |
6404bb81 | 1127 | |
989b74bc NS |
1128 | /* do each thread in turn, each has its own UUID */ |
1129 | ||
1130 | for (j = 0, tcarg = targ; j < num_targets; j++) { | |
4d32d744 NS |
1131 | platform_uuid_copy(&ag_hdr.xfs_sb->sb_uuid, |
1132 | &tcarg->uuid); | |
989b74bc NS |
1133 | do_write(tcarg); |
1134 | tcarg++; | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | bump_bar(100, 0); | |
6404bb81 NS |
1139 | } |
1140 | ||
1141 | check_errors(); | |
6404bb81 NS |
1142 | return 0; |
1143 | } | |
989b74bc | 1144 | |
d60ba955 CH |
1145 | char * |
1146 | next_log_chunk(char *p, int offset, void *private) | |
989b74bc NS |
1147 | { |
1148 | wbuf *buf = (wbuf *)private; | |
1149 | ||
1150 | if (buf->length < (int)(p - buf->data) + offset) { | |
1151 | /* need to flush this one, then start afresh */ | |
1152 | ||
1153 | do_write(buf->owner); | |
1154 | memset(buf->data, 0, buf->length); | |
1155 | return buf->data; | |
1156 | } | |
1157 | return p + offset; | |
1158 | } | |
1159 | ||
1160 | /* | |
1161 | * Writes a log header at the start of the log (with the real | |
1162 | * filesystem UUID embedded into it), and writes to all targets. | |
44e9ee90 | 1163 | * |
989b74bc NS |
1164 | * Returns the next buffer-length-aligned disk address. |
1165 | */ | |
1166 | xfs_off_t | |
1167 | write_log_header(int fd, wbuf *buf, xfs_mount_t *mp) | |
1168 | { | |
d60ba955 | 1169 | char *p = buf->data; |
989b74bc NS |
1170 | xfs_off_t logstart; |
1171 | int offset; | |
1172 | ||
1173 | logstart = XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart) << BBSHIFT; | |
1174 | buf->position = rounddown(logstart, (xfs_off_t)buf->length); | |
1175 | ||
1176 | memset(p, 0, buf->size); | |
1177 | if (logstart % buf->length) { /* unaligned */ | |
1178 | read_wbuf(fd, buf, mp); | |
1179 | offset = logstart - buf->position; | |
1180 | p += offset; | |
1181 | memset(p, 0, buf->length - offset); | |
1182 | } | |
1183 | ||
1184 | offset = libxfs_log_header(p, &buf->owner->uuid, | |
5e656dbb | 1185 | xfs_sb_version_haslogv2(&mp->m_sb) ? 2 : 1, |
989b74bc NS |
1186 | mp->m_sb.sb_logsunit, XLOG_FMT, |
1187 | next_log_chunk, buf); | |
1188 | do_write(buf->owner); | |
1189 | ||
44e9ee90 | 1190 | return roundup(logstart + offset, buf->length); |
989b74bc NS |
1191 | } |
1192 | ||
1193 | /* | |
1194 | * May do an aligned read of the last buffer in the log (& zero | |
1195 | * the start of that buffer). Returns the disk address at the | |
1196 | * end of last aligned buffer in the log. | |
1197 | */ | |
1198 | xfs_off_t | |
1199 | write_log_trailer(int fd, wbuf *buf, xfs_mount_t *mp) | |
1200 | { | |
1201 | xfs_off_t logend; | |
1202 | int offset; | |
1203 | ||
1204 | logend = XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart) << BBSHIFT; | |
1205 | logend += XFS_FSB_TO_B(mp, mp->m_sb.sb_logblocks); | |
1206 | ||
1207 | buf->position = rounddown(logend, (xfs_off_t)buf->length); | |
1208 | ||
1209 | if (logend % buf->length) { /* unaligned */ | |
1210 | read_wbuf(fd, buf, mp); | |
1211 | offset = (int)(logend - buf->position); | |
1212 | memset(buf->data, 0, offset); | |
1213 | do_write(buf->owner); | |
1214 | } | |
1215 | ||
1216 | return buf->position; | |
1217 | } |