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2bd0ea18 NS |
1 | /* |
2 | * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of version 2 of the GNU General Public License as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it would be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
11 | * | |
12 | * Further, this software is distributed without any warranty that it is | |
13 | * free of the rightful claim of any third person regarding infringement | |
14 | * or the like. Any license provided herein, whether implied or | |
15 | * otherwise, applies only to this software file. Patent licenses, if | |
16 | * any, provided herein do not apply to combinations of this program with | |
17 | * other software, or any other product whatsoever. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
22 | * | |
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | |
24 | * Mountain View, CA 94043, or: | |
25 | * | |
26 | * http://www.sgi.com | |
27 | * | |
28 | * For further information regarding this notice, see: | |
29 | * | |
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | |
31 | */ | |
32 | ||
33 | #include <errno.h> | |
34 | #include <fcntl.h> | |
35 | #include <libxfs.h> | |
36 | #include <mntent.h> | |
37 | #include <sys/ioctl.h> | |
38 | ||
39 | static char *fname; /* mount point name */ | |
40 | static char *datadev; /* data device name */ | |
41 | static char *logdev; /* log device name */ | |
42 | static char *rtdev; /* RT device name */ | |
43 | ||
44 | static void | |
45 | usage(void) | |
46 | { | |
47 | fprintf(stderr, | |
48 | "Usage: %s [options] mountpoint\n\n\ | |
49 | Options:\n\ | |
50 | -d grow data/metadata section\n\ | |
51 | -l grow log section\n\ | |
52 | -r grow realtime section\n\ | |
53 | -n don't change anything, just show geometry\n\ | |
54 | -i convert log from external to internal format\n\ | |
55 | -t alternate location for mount table (/etc/mtab)\n\ | |
56 | -x convert log from internal to external format\n\ | |
57 | -D size grow data/metadata section to size blks\n\ | |
58 | -L size grow/shrink log section to size blks\n\ | |
59 | -R size grow realtime section to size blks\n\ | |
60 | -e size set realtime extent size to size blks\n\ | |
61 | -m imaxpct set inode max percent to imaxpct\n\ | |
62 | -V print version information\n", | |
63 | progname); | |
64 | exit(2); | |
65 | } | |
66 | ||
67 | void | |
68 | report_info( | |
69 | xfs_fsop_geom_t geo, | |
70 | char *mntpoint, | |
71 | int unwritten, | |
72 | int dirversion, | |
73 | int isint) | |
74 | { | |
75 | printf("meta-data=%-22s isize=%-6d agcount=%d, agsize=%d blks\n" | |
76 | "data =%-22s bsize=%-6d blocks=%lld, imaxpct=%d\n" | |
77 | " =%-22s sunit=%-6d swidth=%d blks, unwritten=%d\n" | |
78 | "naming =version %-14d bsize=%-6d\n" | |
79 | "log =%-22s bsize=%-6d blocks=%d\n" | |
80 | "realtime =%-22s extsz=%-6d blocks=%lld, rtextents=%lld\n", | |
81 | mntpoint, geo.inodesize, geo.agcount, geo.agblocks, | |
5b64e00a | 82 | "", geo.blocksize, (long long)geo.datablocks, geo.imaxpct, |
2bd0ea18 NS |
83 | "", geo.sunit, geo.swidth, unwritten, |
84 | dirversion, geo.dirblocksize, | |
85 | isint ? "internal" : "external", geo.blocksize, geo.logblocks, | |
86 | geo.rtblocks ? "external" : "none", | |
5b64e00a NS |
87 | geo.rtextsize * geo.blocksize, |
88 | (long long)geo.rtblocks, (long long)geo.rtextents); | |
2bd0ea18 NS |
89 | } |
90 | ||
91 | void | |
92 | explore_mtab(char *mtab, char *mntpoint) | |
93 | { | |
94 | struct mntent *mnt; | |
95 | struct stat64 statuser; | |
96 | struct stat64 statmtab; | |
97 | FILE *mtp; | |
98 | char *rtend; | |
99 | char *logend; | |
100 | ||
101 | if ((mtp = setmntent(mtab, "r")) == NULL) { | |
102 | fprintf(stderr, "%s: cannot access mount list %s: %s\n", | |
103 | progname, MOUNTED, strerror(errno)); | |
104 | exit(1); | |
105 | } | |
106 | if (stat64(mntpoint, &statuser) < 0) { | |
107 | fprintf(stderr, "%s: cannot access mount point %s: %s\n", | |
108 | progname, mntpoint, strerror(errno)); | |
109 | exit(1); | |
110 | } | |
111 | ||
112 | while ((mnt = getmntent(mtp)) != NULL) { | |
113 | if (stat64(mnt->mnt_dir, &statmtab) < 0) { | |
114 | fprintf(stderr, "%s: ignoring entry %s in %s: %s\n", | |
115 | progname, mnt->mnt_dir, mtab, strerror(errno)); | |
116 | continue; | |
117 | } | |
118 | if (statuser.st_ino != statmtab.st_ino || | |
119 | statuser.st_dev != statmtab.st_dev) | |
120 | continue; | |
121 | else if (strcmp(mnt->mnt_type, "xfs") != 0) { | |
122 | fprintf(stderr, "%s: %s is not an XFS filesystem\n", | |
123 | progname, mntpoint); | |
124 | exit(1); | |
125 | } | |
126 | break; /* we've found it */ | |
127 | } | |
128 | ||
129 | if (mnt == NULL) { | |
130 | fprintf(stderr, | |
131 | "%s: %s is not a filesystem mount point, according to %s\n", | |
132 | progname, mntpoint, MOUNTED); | |
133 | exit(1); | |
134 | } | |
135 | ||
136 | /* find the data, log (logdev=), and realtime (rtdev=) devices */ | |
137 | rtend = logend = NULL; | |
138 | fname = mnt->mnt_dir; | |
139 | datadev = mnt->mnt_fsname; | |
140 | if (logdev = hasmntopt(mnt, "logdev=")) { | |
141 | logdev += 7; | |
142 | logend = strtok(logdev, " "); | |
143 | } | |
144 | if (rtdev = hasmntopt(mnt, "rtdev=")) { | |
145 | rtdev += 6; | |
146 | rtend = strtok(rtdev, " "); | |
147 | } | |
148 | ||
149 | /* Do this only after we've finished processing mount options */ | |
150 | if (logdev && logend != logdev) | |
151 | *logend = '\0'; /* terminate end of log device name */ | |
152 | if (rtdev && rtend != rtdev) | |
153 | *rtend = '\0'; /* terminate end of rt device name */ | |
154 | ||
155 | endmntent(mtp); | |
156 | } | |
157 | ||
158 | int | |
159 | main(int argc, char **argv) | |
160 | { | |
161 | int aflag; /* fake flag, do all pieces */ | |
162 | int c; /* current option character */ | |
163 | long long ddsize; /* device size in 512-byte blocks */ | |
164 | int dflag; /* -d flag */ | |
165 | int dirversion; /* directory version number */ | |
166 | long long dlsize; /* device size in 512-byte blocks */ | |
167 | long long drsize; /* device size in 512-byte blocks */ | |
168 | long long dsize; /* new data size in fs blocks */ | |
169 | int error; /* we have hit an error */ | |
170 | long esize; /* new rt extent size */ | |
171 | int ffd; /* mount point file descriptor */ | |
172 | xfs_fsop_geom_t geo; /* current fs geometry */ | |
173 | int iflag; /* -i flag */ | |
174 | int isint; /* log is currently internal */ | |
175 | int lflag; /* -l flag */ | |
176 | long long lsize; /* new log size in fs blocks */ | |
177 | int maxpct; /* -m flag value */ | |
178 | int mflag; /* -m flag */ | |
179 | char *mtab; /* mount table file (/etc/mtab) */ | |
180 | int nflag; /* -n flag */ | |
181 | xfs_fsop_geom_t ngeo; /* new fs geometry */ | |
182 | int rflag; /* -r flag */ | |
183 | long long rsize; /* new rt size in fs blocks */ | |
184 | int unwritten; /* unwritten extent flag */ | |
185 | int xflag; /* -x flag */ | |
186 | libxfs_init_t xi; /* libxfs structure */ | |
187 | ||
188 | mtab = MOUNTED; | |
189 | progname = basename(argv[0]); | |
190 | aflag = dflag = iflag = lflag = mflag = nflag = rflag = xflag = 0; | |
191 | maxpct = esize = 0; | |
192 | dsize = lsize = rsize = 0LL; | |
193 | while ((c = getopt(argc, argv, "dD:e:ilL:m:np:rR:t:xV")) != EOF) { | |
194 | switch (c) { | |
195 | case 'D': | |
196 | dsize = atoll(optarg); | |
197 | /* fall through */ | |
198 | case 'd': | |
199 | dflag = 1; | |
200 | break; | |
201 | case 'e': | |
202 | esize = atol(optarg); | |
203 | rflag = 1; | |
204 | break; | |
205 | case 'i': | |
206 | lflag = iflag = 1; | |
207 | break; | |
208 | case 'L': | |
209 | lsize = atoll(optarg); | |
210 | /* fall through */ | |
211 | case 'l': | |
212 | lflag = 1; | |
213 | break; | |
214 | case 'm': | |
215 | mflag = 1; | |
216 | maxpct = atoi(optarg); | |
217 | break; | |
218 | case 'n': | |
219 | nflag = 1; | |
220 | break; | |
221 | case 'p': | |
222 | progname = optarg; | |
223 | break; | |
224 | case 'R': | |
225 | rsize = atoll(optarg); | |
226 | /* fall through */ | |
227 | case 'r': | |
228 | rflag = 1; | |
229 | break; | |
230 | case 't': | |
231 | mtab = optarg; | |
232 | break; | |
233 | case 'x': | |
234 | lflag = xflag = 1; | |
235 | break; | |
236 | case 'V': | |
237 | printf("%s version %s\n", progname, VERSION); | |
238 | break; | |
239 | case '?': | |
240 | default: | |
241 | usage(); | |
242 | } | |
243 | } | |
244 | if (argc - optind != 1) | |
245 | usage(); | |
246 | if (iflag && xflag) | |
247 | usage(); | |
248 | if (dflag + lflag + rflag == 0) | |
249 | aflag = 1; | |
250 | ||
251 | explore_mtab(mtab, argv[optind]); | |
252 | ||
253 | ffd = open(fname, O_RDONLY); | |
254 | if (ffd < 0) { | |
255 | perror(fname); | |
256 | return 1; | |
257 | } | |
258 | ||
259 | /* get the current filesystem size & geometry */ | |
260 | if (ioctl(ffd, XFS_IOC_FSGEOMETRY, &geo) < 0) { | |
261 | fprintf(stderr, "%s: cannot determine geometry of filesystem" | |
262 | " mounted at %s: %s\n", | |
263 | progname, fname, strerror(errno)); | |
264 | exit(1); | |
265 | } | |
266 | isint = geo.logstart > 0; | |
267 | unwritten = geo.flags & XFS_FSOP_GEOM_FLAGS_EXTFLG ? 1 : 0; | |
268 | dirversion = geo.flags & XFS_FSOP_GEOM_FLAGS_DIRV2 ? 2 : 1; | |
269 | ||
270 | if (nflag) { | |
271 | report_info(geo, fname, unwritten, dirversion, isint); | |
272 | exit(0); | |
273 | } | |
274 | ||
275 | /* | |
276 | * Need root access from here on (using raw devices)... | |
277 | */ | |
278 | ||
279 | bzero(&xi, sizeof(xi)); | |
280 | xi.dname = datadev; | |
281 | xi.logname = logdev; | |
282 | xi.rtname = rtdev; | |
283 | xi.notvolok = 1; | |
284 | xi.isreadonly = LIBXFS_ISREADONLY; | |
285 | ||
286 | if (!libxfs_init(&xi)) | |
287 | usage(); | |
288 | ||
289 | /* check we got the info for all the sections we are trying to modify */ | |
290 | if (!xi.ddev) { | |
291 | fprintf(stderr, "%s: failed to access data device for %s\n", | |
292 | progname, fname); | |
293 | exit(1); | |
294 | } | |
295 | if (lflag && !isint && !xi.logdev) { | |
296 | fprintf(stderr, "%s: failed to access external log for %s\n", | |
297 | progname, fname); | |
298 | exit(1); | |
299 | } | |
300 | if (rflag && !xi.rtdev) { | |
301 | fprintf(stderr, "%s: failed to access realtime device for %s\n", | |
302 | progname, fname); | |
303 | exit(1); | |
304 | } | |
305 | ||
306 | report_info(geo, fname, unwritten, dirversion, isint); | |
307 | ||
308 | ddsize = xi.dsize; | |
309 | dlsize = ( xi.logBBsize? xi.logBBsize : | |
310 | geo.logblocks * (geo.blocksize / BBSIZE) ); | |
311 | drsize = xi.rtsize; | |
312 | ||
313 | error = 0; | |
314 | if (dflag | aflag) { | |
315 | xfs_growfs_data_t in; | |
316 | ||
317 | if (!mflag) | |
318 | maxpct = geo.imaxpct; | |
319 | if (!dsize) | |
320 | dsize = ddsize / (geo.blocksize / BBSIZE); | |
321 | else if (dsize > ddsize / (geo.blocksize / BBSIZE)) { | |
322 | fprintf(stderr, | |
5b64e00a NS |
323 | "data size %lld too large, maximum is %lld\n", |
324 | (long long)dsize, | |
325 | (long long)(ddsize/(geo.blocksize/BBSIZE))); | |
2bd0ea18 NS |
326 | error = 1; |
327 | } | |
328 | if (!error && dsize < geo.datablocks) { | |
5b64e00a | 329 | fprintf(stderr, "data size %lld too small," |
2bd0ea18 | 330 | " old size is %lld\n", |
5b64e00a | 331 | (long long)dsize, (long long)geo.datablocks); |
2bd0ea18 NS |
332 | error = 1; |
333 | } else if (!error && | |
334 | dsize == geo.datablocks && maxpct == geo.imaxpct) { | |
335 | if (dflag) | |
336 | fprintf(stderr, | |
337 | "data size unchanged, skipping\n"); | |
338 | if (mflag) | |
339 | fprintf(stderr, | |
340 | "inode max pct unchanged, skipping\n"); | |
341 | } else if (!error && !nflag) { | |
342 | in.newblocks = (__u64)dsize; | |
343 | in.imaxpct = (__u32)maxpct; | |
344 | if (ioctl(ffd, XFS_IOC_FSGROWFSDATA, &in) < 0) { | |
345 | if (errno == EWOULDBLOCK) | |
346 | fprintf(stderr, | |
347 | "%s: growfs operation in progress already\n", | |
348 | progname); | |
349 | else | |
350 | fprintf(stderr, | |
351 | "%s: ioctl failed - XFS_IOC_FSGROWFSDATA: %s\n", | |
352 | progname, strerror(errno)); | |
353 | error = 1; | |
354 | } | |
355 | } | |
356 | } | |
357 | ||
358 | if (!error && (rflag | aflag)) { | |
359 | xfs_growfs_rt_t in; | |
360 | ||
361 | if (!esize) | |
362 | esize = (__u32)geo.rtextsize; | |
363 | if (!rsize) | |
364 | rsize = drsize / (geo.blocksize / BBSIZE); | |
365 | else if (rsize > drsize / (geo.blocksize / BBSIZE)) { | |
366 | fprintf(stderr, | |
367 | "realtime size %lld too large, maximum is %lld\n", | |
368 | rsize, drsize / (geo.blocksize / BBSIZE)); | |
369 | error = 1; | |
370 | } | |
371 | if (!error && rsize < geo.rtblocks) { | |
372 | fprintf(stderr, | |
373 | "realtime size %lld too small, old size is %lld\n", | |
5b64e00a | 374 | (long long)rsize, (long long)geo.rtblocks); |
2bd0ea18 NS |
375 | error = 1; |
376 | } else if (!error && rsize == geo.rtblocks) { | |
377 | if (rflag) | |
378 | fprintf(stderr, | |
379 | "realtime size unchanged, skipping\n"); | |
380 | } else if (!error && !nflag) { | |
381 | in.newblocks = (__u64)rsize; | |
382 | in.extsize = (__u32)esize; | |
383 | if (ioctl(ffd, XFS_IOC_FSGROWFSRT, &in) < 0) { | |
384 | if (errno == EWOULDBLOCK) | |
385 | fprintf(stderr, | |
386 | "%s: growfs operation in progress already\n", | |
387 | progname); | |
388 | else if (errno == ENOSYS) | |
389 | fprintf(stderr, | |
390 | "%s: realtime growth not implemented\n", | |
391 | progname); | |
392 | else | |
393 | fprintf(stderr, | |
394 | "%s: ioctl failed - XFS_IOC_FSGROWFSRT: %s\n", | |
395 | progname, strerror(errno)); | |
396 | error = 1; | |
397 | } | |
398 | } | |
399 | } | |
400 | ||
401 | if (!error && (lflag | aflag)) { | |
402 | xfs_growfs_log_t in; | |
403 | ||
404 | if (!lsize) | |
405 | lsize = dlsize / (geo.blocksize / BBSIZE); | |
406 | if (iflag) | |
407 | in.isint = 1; | |
408 | else if (xflag) | |
409 | in.isint = 0; | |
410 | else | |
411 | in.isint = xi.logBBsize == 0; | |
412 | if (lsize == geo.logblocks && (in.isint == isint)) { | |
413 | if (lflag) | |
414 | fprintf(stderr, | |
415 | "log size unchanged, skipping\n"); | |
416 | } else if (!nflag) { | |
417 | in.newblocks = (__u32)lsize; | |
418 | if (ioctl(ffd, XFS_IOC_FSGROWFSLOG, &in) < 0) { | |
419 | if (errno == EWOULDBLOCK) | |
420 | fprintf(stderr, | |
421 | "%s: growfs operation in progress already\n", | |
422 | progname); | |
423 | else if (errno == ENOSYS) | |
424 | fprintf(stderr, | |
425 | "%s: log growth not supported yet\n", progname); | |
426 | else | |
427 | fprintf(stderr, | |
428 | "%s: ioctl failed - XFS_IOC_FSGROWFSLOG: %s\n", | |
429 | progname, strerror(errno)); | |
430 | error = 1; | |
431 | } | |
432 | } | |
433 | } | |
434 | ||
435 | if (ioctl(ffd, XFS_IOC_FSGEOMETRY, &ngeo) < 0) { | |
436 | fprintf(stderr, "%s: ioctl failed - XFS_IOC_FSGEOMETRY: %s\n", | |
437 | progname, strerror(errno)); | |
438 | exit(1); | |
439 | } | |
440 | if (geo.datablocks != ngeo.datablocks) | |
441 | printf("data blocks changed from %lld to %lld\n", | |
5b64e00a | 442 | (long long)geo.datablocks, (long long)ngeo.datablocks); |
2bd0ea18 NS |
443 | if (geo.imaxpct != ngeo.imaxpct) |
444 | printf("inode max percent changed from %d to %d\n", | |
445 | geo.imaxpct, ngeo.imaxpct); | |
446 | if (geo.logblocks != ngeo.logblocks) | |
447 | printf("log blocks changed from %d to %d\n", | |
448 | geo.logblocks, ngeo.logblocks); | |
449 | if ((geo.logstart == 0) != (ngeo.logstart == 0)) | |
450 | printf("log changed from %s to %s\n", | |
451 | geo.logstart ? "internal" : "external", | |
452 | ngeo.logstart ? "internal" : "external"); | |
453 | if (geo.rtblocks != ngeo.rtblocks) | |
454 | printf("realtime blocks changed from %lld to %lld\n", | |
5b64e00a | 455 | (long long)geo.rtblocks, (long long)ngeo.rtblocks); |
2bd0ea18 NS |
456 | if (geo.rtextsize != ngeo.rtextsize) |
457 | printf("realtime extent size changed from %d to %d\n", | |
458 | geo.rtextsize, ngeo.rtextsize); | |
459 | exit(0); | |
460 | } |