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Commit | Line | Data |
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2bd0ea18 | 1 | /* |
da23017d NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
2bd0ea18 | 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 | |
2bd0ea18 NS |
7 | * published by the Free Software Foundation. |
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. | |
2bd0ea18 | 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 | |
2bd0ea18 NS |
17 | */ |
18 | ||
2bd0ea18 | 19 | #include <sys/stat.h> |
9440d84d | 20 | #include "init.h" |
29e62271 | 21 | |
9c799827 | 22 | #include "libxfs_priv.h" |
b626fb59 DC |
23 | #include "xfs_fs.h" |
24 | #include "xfs_shared.h" | |
25 | #include "xfs_format.h" | |
26 | #include "xfs_log_format.h" | |
27 | #include "xfs_trans_resv.h" | |
28 | #include "xfs_mount.h" | |
794a5604 | 29 | #include "xfs_defer.h" |
b626fb59 DC |
30 | #include "xfs_inode_buf.h" |
31 | #include "xfs_inode_fork.h" | |
32 | #include "xfs_inode.h" | |
33 | #include "xfs_trans.h" | |
b3a96b46 | 34 | #include "xfs_rmap_btree.h" |
e7be6330 | 35 | #include "xfs_refcount_btree.h" |
b626fb59 | 36 | |
6b803e5a | 37 | #include "libxfs.h" /* for now */ |
b626fb59 | 38 | |
2bd0ea18 NS |
39 | char *progname = "libxfs"; /* default, changed by each tool */ |
40 | ||
f1b058f9 | 41 | struct cache *libxfs_bcache; /* global buffer cache */ |
9f38f08d | 42 | int libxfs_bhash_size; /* #buckets in bcache */ |
f1b058f9 | 43 | |
d0572de5 BN |
44 | int use_xfs_buf_lock; /* global flag: use xfs_buf_t locks for MT */ |
45 | ||
44488491 | 46 | static int manage_zones(int); /* setup/teardown global zones */ |
f1b058f9 | 47 | |
2bd0ea18 NS |
48 | /* |
49 | * dev_map - map open devices to fd. | |
50 | */ | |
51 | #define MAX_DEVS 10 /* arbitary maximum */ | |
52 | int nextfakedev = -1; /* device number to give to next fake device */ | |
53 | static struct dev_to_fd { | |
9440d84d NS |
54 | dev_t dev; |
55 | int fd; | |
2bd0ea18 NS |
56 | } dev_map[MAX_DEVS]={{0}}; |
57 | ||
2bd0ea18 NS |
58 | /* |
59 | * Checks whether a given device has a mounted, writable | |
60 | * filesystem, returns 1 if it does & fatal (just warns | |
61 | * if not fatal, but allows us to proceed). | |
5000d01d | 62 | * |
2bd0ea18 NS |
63 | * Useful to tools which will produce uncertain results |
64 | * if the filesystem is active - repair, check, logprint. | |
65 | */ | |
66 | static int | |
67 | check_isactive(char *name, char *block, int fatal) | |
68 | { | |
f594a0d1 | 69 | struct stat st; |
2bd0ea18 | 70 | |
f594a0d1 | 71 | if (stat(block, &st) < 0) |
9440d84d | 72 | return 0; |
fc8202ba | 73 | if ((st.st_mode & S_IFMT) != S_IFBLK) |
9440d84d | 74 | return 0; |
93d9f139 | 75 | if (platform_check_ismounted(name, block, &st, 0) == 0) |
9440d84d | 76 | return 0; |
7f510afb ES |
77 | if (platform_check_iswritable(name, block, &st)) |
78 | return fatal ? 1 : 0; | |
79 | return 0; | |
2bd0ea18 NS |
80 | } |
81 | ||
5000d01d | 82 | /* libxfs_device_to_fd: |
2bd0ea18 NS |
83 | * lookup a device number in the device map |
84 | * return the associated fd | |
85 | */ | |
86 | int | |
87 | libxfs_device_to_fd(dev_t device) | |
88 | { | |
9440d84d | 89 | int d; |
5000d01d | 90 | |
9440d84d | 91 | for (d = 0; d < MAX_DEVS; d++) |
5000d01d | 92 | if (dev_map[d].dev == device) |
2bd0ea18 | 93 | return dev_map[d].fd; |
5000d01d | 94 | |
9440d84d NS |
95 | fprintf(stderr, _("%s: %s: device %lld is not open\n"), |
96 | progname, __FUNCTION__, (long long)device); | |
2bd0ea18 | 97 | exit(1); |
25d246df | 98 | /* NOTREACHED */ |
2bd0ea18 NS |
99 | } |
100 | ||
101 | /* libxfs_device_open: | |
102 | * open a device and return its device number | |
103 | */ | |
104 | dev_t | |
7eb6693f | 105 | libxfs_device_open(char *path, int creat, int xflags, int setblksize) |
2bd0ea18 | 106 | { |
2bd0ea18 | 107 | dev_t dev; |
7eb6693f | 108 | int fd, d, flags; |
b74a1f6a | 109 | int readonly, dio, excl; |
f594a0d1 | 110 | struct stat statb; |
7eb6693f NS |
111 | |
112 | readonly = (xflags & LIBXFS_ISREADONLY); | |
113 | excl = (xflags & LIBXFS_EXCLUSIVELY) && !creat; | |
b74a1f6a | 114 | dio = (xflags & LIBXFS_DIRECT) && !creat && platform_direct_blockdev(); |
2bd0ea18 | 115 | |
b74a1f6a | 116 | retry: |
7eb6693f NS |
117 | flags = (readonly ? O_RDONLY : O_RDWR) | \ |
118 | (creat ? (O_CREAT|O_TRUNC) : 0) | \ | |
b74a1f6a | 119 | (dio ? O_DIRECT : 0) | \ |
7eb6693f | 120 | (excl ? O_EXCL : 0); |
b74a1f6a | 121 | |
7eb6693f | 122 | if ((fd = open(path, flags, 0666)) < 0) { |
b74a1f6a NS |
123 | if (errno == EINVAL && --dio == 0) |
124 | goto retry; | |
9440d84d | 125 | fprintf(stderr, _("%s: cannot open %s: %s\n"), |
2bd0ea18 NS |
126 | progname, path, strerror(errno)); |
127 | exit(1); | |
128 | } | |
129 | ||
f594a0d1 | 130 | if (fstat(fd, &statb) < 0) { |
9440d84d | 131 | fprintf(stderr, _("%s: cannot stat %s: %s\n"), |
2bd0ea18 NS |
132 | progname, path, strerror(errno)); |
133 | exit(1); | |
134 | } | |
a33a9e62 | 135 | |
edd45774 TS |
136 | if (!readonly && setblksize && (statb.st_mode & S_IFMT) == S_IFBLK) { |
137 | if (setblksize == 1) | |
138 | /* use the default blocksize */ | |
139 | (void)platform_set_blocksize(fd, path, statb.st_rdev, XFS_MIN_SECTORSIZE, 0); | |
140 | else { | |
141 | /* given an explicit blocksize to use */ | |
142 | if (platform_set_blocksize(fd, path, statb.st_rdev, setblksize, 1)) | |
143 | exit(1); | |
144 | } | |
145 | } | |
2bd0ea18 | 146 | |
a33a9e62 NS |
147 | /* |
148 | * Get the device number from the stat buf - unless | |
2bd0ea18 | 149 | * we're not opening a real device, in which case |
a33a9e62 | 150 | * choose a new fake device number. |
2bd0ea18 | 151 | */ |
32181a02 | 152 | dev = (statb.st_rdev) ? (statb.st_rdev) : (nextfakedev--); |
2bd0ea18 | 153 | |
32181a02 | 154 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 155 | if (dev_map[d].dev == dev) { |
9440d84d | 156 | fprintf(stderr, _("%s: device %lld is already open\n"), |
5b64e00a | 157 | progname, (long long)dev); |
2bd0ea18 NS |
158 | exit(1); |
159 | } | |
160 | ||
32181a02 | 161 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 162 | if (!dev_map[d].dev) { |
32181a02 NS |
163 | dev_map[d].dev = dev; |
164 | dev_map[d].fd = fd; | |
5000d01d | 165 | |
2bd0ea18 NS |
166 | return dev; |
167 | } | |
168 | ||
9440d84d NS |
169 | fprintf(stderr, _("%s: %s: too many open devices\n"), |
170 | progname, __FUNCTION__); | |
2bd0ea18 | 171 | exit(1); |
25d246df | 172 | /* NOTREACHED */ |
2bd0ea18 NS |
173 | } |
174 | ||
175 | void | |
176 | libxfs_device_close(dev_t dev) | |
177 | { | |
5000d01d | 178 | int d; |
2bd0ea18 | 179 | |
32181a02 | 180 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 181 | if (dev_map[d].dev == dev) { |
32181a02 | 182 | int fd; |
5000d01d | 183 | |
32181a02 NS |
184 | fd = dev_map[d].fd; |
185 | dev_map[d].dev = dev_map[d].fd = 0; | |
5000d01d | 186 | |
2bd0ea18 | 187 | fsync(fd); |
ac419944 | 188 | platform_flush_device(fd, dev); |
2bd0ea18 | 189 | close(fd); |
5000d01d | 190 | |
2bd0ea18 NS |
191 | return; |
192 | } | |
193 | ||
9440d84d NS |
194 | fprintf(stderr, _("%s: %s: device %lld is not open\n"), |
195 | progname, __FUNCTION__, (long long)dev); | |
2bd0ea18 NS |
196 | exit(1); |
197 | } | |
198 | ||
74668075 NS |
199 | static int |
200 | check_open(char *path, int flags, char **rawfile, char **blockfile) | |
201 | { | |
c781939c RC |
202 | int readonly = (flags & LIBXFS_ISREADONLY); |
203 | int inactive = (flags & LIBXFS_ISINACTIVE); | |
204 | int dangerously = (flags & LIBXFS_DANGEROUSLY); | |
f594a0d1 | 205 | struct stat stbuf; |
c781939c | 206 | |
f594a0d1 | 207 | if (stat(path, &stbuf) < 0) { |
c781939c RC |
208 | perror(path); |
209 | return 0; | |
210 | } | |
b74a1f6a | 211 | if (!(*rawfile = platform_findrawpath(path))) { |
c781939c RC |
212 | fprintf(stderr, _("%s: " |
213 | "can't find a character device matching %s\n"), | |
214 | progname, path); | |
215 | return 0; | |
216 | } | |
b74a1f6a | 217 | if (!(*blockfile = platform_findblockpath(path))) { |
c781939c RC |
218 | fprintf(stderr, _("%s: " |
219 | "can't find a block device matching %s\n"), | |
220 | progname, path); | |
221 | return 0; | |
222 | } | |
223 | if (!readonly && !inactive && platform_check_ismounted(path, *blockfile, NULL, 1)) | |
224 | return 0; | |
e08f5594 | 225 | |
c781939c RC |
226 | if (inactive && check_isactive(path, *blockfile, ((readonly|dangerously)?1:0))) |
227 | return 0; | |
228 | ||
229 | return 1; | |
230 | } | |
231 | ||
2bd0ea18 NS |
232 | /* |
233 | * libxfs initialization. | |
234 | * Caller gets a 0 on failure (and we print a message), 1 on success. | |
235 | */ | |
236 | int | |
237 | libxfs_init(libxfs_init_t *a) | |
238 | { | |
239 | char *blockfile; | |
2bd0ea18 NS |
240 | char *dname; |
241 | char dpath[25]; | |
242 | int fd; | |
243 | char *logname; | |
244 | char logpath[25]; | |
2bd0ea18 NS |
245 | char *rawfile; |
246 | char *rtname; | |
247 | char rtpath[25]; | |
248 | int rval = 0; | |
c781939c | 249 | int flags; |
2bd0ea18 NS |
250 | |
251 | dpath[0] = logpath[0] = rtpath[0] = '\0'; | |
252 | dname = a->dname; | |
253 | logname = a->logname; | |
254 | rtname = a->rtname; | |
2bd0ea18 | 255 | a->dfd = a->logfd = a->rtfd = -1; |
74668075 | 256 | a->ddev = a->logdev = a->rtdev = 0; |
06ac92fd DC |
257 | a->dsize = a->lbsize = a->rtbsize = 0; |
258 | a->dbsize = a->logBBsize = a->logBBstart = a->rtsize = 0; | |
2bd0ea18 | 259 | |
2bd0ea18 | 260 | fd = -1; |
b74a1f6a | 261 | flags = (a->isreadonly | a->isdirect); |
c781939c | 262 | |
dc3bce02 DW |
263 | xfs_extent_free_init_defer_op(); |
264 | xfs_rmap_update_init_defer_op(); | |
cdc9cf25 | 265 | xfs_refcount_update_init_defer_op(); |
f8f8c8a0 | 266 | xfs_bmap_update_init_defer_op(); |
dc3bce02 | 267 | |
bacd44a5 AE |
268 | radix_tree_init(); |
269 | ||
2bd0ea18 | 270 | if (a->volname) { |
c781939c | 271 | if(!check_open(a->volname,flags,&rawfile,&blockfile)) |
2bd0ea18 | 272 | goto done; |
2bd0ea18 | 273 | fd = open(rawfile, O_RDONLY); |
eb37fca5 NS |
274 | dname = a->dname = a->volname; |
275 | a->volname = NULL; | |
2bd0ea18 | 276 | } |
2bd0ea18 | 277 | if (dname) { |
2bd0ea18 | 278 | if (a->disfile) { |
7eb6693f | 279 | a->ddev= libxfs_device_open(dname, a->dcreat, flags, |
c5907b96 | 280 | a->setblksize); |
2bd0ea18 | 281 | a->dfd = libxfs_device_to_fd(a->ddev); |
06ac92fd DC |
282 | platform_findsizes(dname, a->dfd, &a->dsize, |
283 | &a->dbsize); | |
2bd0ea18 | 284 | } else { |
f02037ce | 285 | if (!check_open(dname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
286 | goto done; |
287 | a->ddev = libxfs_device_open(rawfile, | |
7eb6693f | 288 | a->dcreat, flags, a->setblksize); |
2bd0ea18 | 289 | a->dfd = libxfs_device_to_fd(a->ddev); |
f02037ce | 290 | platform_findsizes(rawfile, a->dfd, |
06ac92fd | 291 | &a->dsize, &a->dbsize); |
2bd0ea18 | 292 | } |
2bd0ea18 NS |
293 | } else |
294 | a->dsize = 0; | |
295 | if (logname) { | |
2bd0ea18 NS |
296 | if (a->lisfile) { |
297 | a->logdev = libxfs_device_open(logname, | |
7eb6693f | 298 | a->lcreat, flags, a->setblksize); |
2bd0ea18 | 299 | a->logfd = libxfs_device_to_fd(a->logdev); |
06ac92fd DC |
300 | platform_findsizes(dname, a->logfd, &a->logBBsize, |
301 | &a->lbsize); | |
2bd0ea18 | 302 | } else { |
f02037ce | 303 | if (!check_open(logname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
304 | goto done; |
305 | a->logdev = libxfs_device_open(rawfile, | |
7eb6693f | 306 | a->lcreat, flags, a->setblksize); |
2bd0ea18 | 307 | a->logfd = libxfs_device_to_fd(a->logdev); |
f02037ce | 308 | platform_findsizes(rawfile, a->logfd, |
06ac92fd | 309 | &a->logBBsize, &a->lbsize); |
2bd0ea18 | 310 | } |
2bd0ea18 NS |
311 | } else |
312 | a->logBBsize = 0; | |
313 | if (rtname) { | |
2bd0ea18 NS |
314 | if (a->risfile) { |
315 | a->rtdev = libxfs_device_open(rtname, | |
7eb6693f | 316 | a->rcreat, flags, a->setblksize); |
2bd0ea18 | 317 | a->rtfd = libxfs_device_to_fd(a->rtdev); |
06ac92fd DC |
318 | platform_findsizes(dname, a->rtfd, &a->rtsize, |
319 | &a->rtbsize); | |
2bd0ea18 | 320 | } else { |
f02037ce | 321 | if (!check_open(rtname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
322 | goto done; |
323 | a->rtdev = libxfs_device_open(rawfile, | |
7eb6693f | 324 | a->rcreat, flags, a->setblksize); |
2bd0ea18 | 325 | a->rtfd = libxfs_device_to_fd(a->rtdev); |
f02037ce | 326 | platform_findsizes(rawfile, a->rtfd, |
06ac92fd | 327 | &a->rtsize, &a->rtbsize); |
2bd0ea18 | 328 | } |
2bd0ea18 NS |
329 | } else |
330 | a->rtsize = 0; | |
331 | if (a->dsize < 0) { | |
9440d84d | 332 | fprintf(stderr, _("%s: can't get size for data subvolume\n"), |
2bd0ea18 NS |
333 | progname); |
334 | goto done; | |
335 | } | |
336 | if (a->logBBsize < 0) { | |
9440d84d | 337 | fprintf(stderr, _("%s: can't get size for log subvolume\n"), |
2bd0ea18 NS |
338 | progname); |
339 | goto done; | |
340 | } | |
341 | if (a->rtsize < 0) { | |
9440d84d | 342 | fprintf(stderr, _("%s: can't get size for realtime subvolume\n"), |
2bd0ea18 NS |
343 | progname); |
344 | goto done; | |
345 | } | |
9f38f08d MV |
346 | if (!libxfs_bhash_size) |
347 | libxfs_bhash_size = LIBXFS_BHASHSIZE(sbp); | |
ba9ecd40 DC |
348 | libxfs_bcache = cache_init(a->bcache_flags, libxfs_bhash_size, |
349 | &libxfs_bcache_operations); | |
d0572de5 | 350 | use_xfs_buf_lock = a->usebuflock; |
f1b058f9 | 351 | manage_zones(0); |
2bd0ea18 NS |
352 | rval = 1; |
353 | done: | |
354 | if (dpath[0]) | |
355 | unlink(dpath); | |
356 | if (logpath[0]) | |
357 | unlink(logpath); | |
358 | if (rtpath[0]) | |
359 | unlink(rtpath); | |
360 | if (fd >= 0) | |
361 | close(fd); | |
362 | if (!rval && a->ddev) | |
363 | libxfs_device_close(a->ddev); | |
364 | if (!rval && a->logdev) | |
365 | libxfs_device_close(a->logdev); | |
366 | if (!rval && a->rtdev) | |
367 | libxfs_device_close(a->rtdev); | |
368 | return rval; | |
369 | } | |
370 | ||
371 | ||
372 | /* | |
373 | * Initialize/destroy all of the zone allocators we use. | |
374 | */ | |
44488491 | 375 | static int |
2bd0ea18 NS |
376 | manage_zones(int release) |
377 | { | |
5e656dbb BN |
378 | extern kmem_zone_t *xfs_buf_zone; |
379 | extern kmem_zone_t *xfs_ili_zone; | |
bf0e024f | 380 | extern kmem_zone_t *xfs_inode_zone; |
5e656dbb | 381 | extern kmem_zone_t *xfs_ifork_zone; |
5e656dbb BN |
382 | extern kmem_zone_t *xfs_buf_item_zone; |
383 | extern kmem_zone_t *xfs_da_state_zone; | |
384 | extern kmem_zone_t *xfs_btree_cur_zone; | |
385 | extern kmem_zone_t *xfs_bmap_free_item_zone; | |
67d72279 | 386 | extern kmem_zone_t *xfs_trans_zone; |
56b2de80 | 387 | extern kmem_zone_t *xfs_log_item_desc_zone; |
2bd0ea18 NS |
388 | extern void xfs_dir_startup(); |
389 | ||
390 | if (release) { /* free zone allocation */ | |
44488491 ES |
391 | int leaked = 0; |
392 | ||
393 | leaked += kmem_zone_destroy(xfs_buf_zone); | |
394 | leaked += kmem_zone_destroy(xfs_ili_zone); | |
395 | leaked += kmem_zone_destroy(xfs_inode_zone); | |
396 | leaked += kmem_zone_destroy(xfs_ifork_zone); | |
397 | leaked += kmem_zone_destroy(xfs_buf_item_zone); | |
398 | leaked += kmem_zone_destroy(xfs_da_state_zone); | |
399 | leaked += kmem_zone_destroy(xfs_btree_cur_zone); | |
400 | leaked += kmem_zone_destroy(xfs_bmap_free_item_zone); | |
401 | leaked += kmem_zone_destroy(xfs_trans_zone); | |
402 | leaked += kmem_zone_destroy(xfs_log_item_desc_zone); | |
403 | ||
404 | return leaked; | |
2bd0ea18 NS |
405 | } |
406 | /* otherwise initialise zone allocation */ | |
5e656dbb | 407 | xfs_buf_zone = kmem_zone_init(sizeof(xfs_buf_t), "xfs_buffer"); |
b626fb59 | 408 | xfs_inode_zone = kmem_zone_init(sizeof(struct xfs_inode), "xfs_inode"); |
5e656dbb | 409 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); |
5e656dbb | 410 | xfs_ili_zone = kmem_zone_init( |
2bd0ea18 | 411 | sizeof(xfs_inode_log_item_t), "xfs_inode_log_item"); |
5e656dbb | 412 | xfs_buf_item_zone = kmem_zone_init( |
2bd0ea18 | 413 | sizeof(xfs_buf_log_item_t), "xfs_buf_log_item"); |
5e656dbb | 414 | xfs_da_state_zone = kmem_zone_init( |
2bd0ea18 | 415 | sizeof(xfs_da_state_t), "xfs_da_state"); |
5e656dbb | 416 | xfs_btree_cur_zone = kmem_zone_init( |
2bd0ea18 | 417 | sizeof(xfs_btree_cur_t), "xfs_btree_cur"); |
5e656dbb | 418 | xfs_bmap_free_item_zone = kmem_zone_init( |
6f530e9a DW |
419 | sizeof(struct xfs_extent_free_item), |
420 | "xfs_bmap_free_item"); | |
67d72279 ES |
421 | xfs_trans_zone = kmem_zone_init( |
422 | sizeof(struct xfs_trans), "xfs_trans"); | |
56b2de80 DC |
423 | xfs_log_item_desc_zone = kmem_zone_init( |
424 | sizeof(struct xfs_log_item_desc), "xfs_log_item_desc"); | |
2bd0ea18 | 425 | xfs_dir_startup(); |
44488491 ES |
426 | |
427 | return 0; | |
2bd0ea18 NS |
428 | } |
429 | ||
b391b7cd NS |
430 | /* |
431 | * Initialize realtime fields in the mount structure. | |
432 | */ | |
433 | static int | |
434 | rtmount_init( | |
39798eb5 NS |
435 | xfs_mount_t *mp, /* file system mount structure */ |
436 | int flags) | |
b391b7cd NS |
437 | { |
438 | xfs_buf_t *bp; /* buffer for last block of subvolume */ | |
439 | xfs_daddr_t d; /* address of last block of subvolume */ | |
440 | xfs_sb_t *sbp; /* filesystem superblock copy in mount */ | |
441 | ||
442 | sbp = &mp->m_sb; | |
443 | if (sbp->sb_rblocks == 0) | |
444 | return 0; | |
75c8b434 | 445 | if (mp->m_rtdev_targp->dev == 0 && !(flags & LIBXFS_MOUNT_DEBUGGER)) { |
9440d84d | 446 | fprintf(stderr, _("%s: filesystem has a realtime subvolume\n"), |
b391b7cd NS |
447 | progname); |
448 | return -1; | |
449 | } | |
450 | mp->m_rsumlevels = sbp->sb_rextslog + 1; | |
451 | mp->m_rsumsize = | |
452 | (uint)sizeof(xfs_suminfo_t) * mp->m_rsumlevels * | |
453 | sbp->sb_rbmblocks; | |
454 | mp->m_rsumsize = roundup(mp->m_rsumsize, sbp->sb_blocksize); | |
455 | mp->m_rbmip = mp->m_rsumip = NULL; | |
39798eb5 NS |
456 | |
457 | /* | |
458 | * Allow debugger to be run without the realtime device present. | |
459 | */ | |
460 | if (flags & LIBXFS_MOUNT_DEBUGGER) | |
461 | return 0; | |
462 | ||
b391b7cd NS |
463 | /* |
464 | * Check that the realtime section is an ok size. | |
465 | */ | |
466 | d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_rblocks); | |
467 | if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_rblocks) { | |
9440d84d NS |
468 | fprintf(stderr, _("%s: realtime init - %llu != %llu\n"), |
469 | progname, (unsigned long long) XFS_BB_TO_FSB(mp, d), | |
b391b7cd NS |
470 | (unsigned long long) mp->m_sb.sb_rblocks); |
471 | return -1; | |
472 | } | |
9440d84d | 473 | bp = libxfs_readbuf(mp->m_rtdev, |
75c8b434 | 474 | d - XFS_FSB_TO_BB(mp, 1), XFS_FSB_TO_BB(mp, 1), 0, NULL); |
b391b7cd | 475 | if (bp == NULL) { |
9440d84d NS |
476 | fprintf(stderr, _("%s: realtime size check failed\n"), |
477 | progname); | |
b391b7cd NS |
478 | return -1; |
479 | } | |
480 | libxfs_putbuf(bp); | |
481 | return 0; | |
482 | } | |
483 | ||
56b2de80 DC |
484 | static int |
485 | libxfs_initialize_perag( | |
486 | xfs_mount_t *mp, | |
487 | xfs_agnumber_t agcount, | |
488 | xfs_agnumber_t *maxagi) | |
489 | { | |
490 | xfs_agnumber_t index, max_metadata; | |
491 | xfs_agnumber_t first_initialised = 0; | |
492 | xfs_perag_t *pag; | |
493 | xfs_agino_t agino; | |
494 | xfs_ino_t ino; | |
495 | xfs_sb_t *sbp = &mp->m_sb; | |
496 | int error = -ENOMEM; | |
497 | ||
498 | /* | |
499 | * Walk the current per-ag tree so we don't try to initialise AGs | |
500 | * that already exist (growfs case). Allocate and insert all the | |
501 | * AGs we don't find ready for initialisation. | |
502 | */ | |
503 | for (index = 0; index < agcount; index++) { | |
504 | pag = xfs_perag_get(mp, index); | |
505 | if (pag) { | |
506 | xfs_perag_put(pag); | |
507 | continue; | |
508 | } | |
509 | if (!first_initialised) | |
510 | first_initialised = index; | |
511 | ||
512 | pag = kmem_zalloc(sizeof(*pag), KM_MAYFAIL); | |
513 | if (!pag) | |
514 | goto out_unwind; | |
515 | pag->pag_agno = index; | |
516 | pag->pag_mount = mp; | |
517 | ||
518 | if (radix_tree_insert(&mp->m_perag_tree, index, pag)) { | |
519 | error = -EEXIST; | |
520 | goto out_unwind; | |
521 | } | |
522 | } | |
523 | ||
524 | /* | |
525 | * If we mount with the inode64 option, or no inode overflows | |
526 | * the legacy 32-bit address space clear the inode32 option. | |
527 | */ | |
528 | agino = XFS_OFFBNO_TO_AGINO(mp, sbp->sb_agblocks - 1, 0); | |
529 | ino = XFS_AGINO_TO_INO(mp, agcount - 1, agino); | |
530 | ||
531 | if ((mp->m_flags & XFS_MOUNT_SMALL_INUMS) && ino > XFS_MAXINUMBER_32) | |
532 | mp->m_flags |= XFS_MOUNT_32BITINODES; | |
533 | else | |
534 | mp->m_flags &= ~XFS_MOUNT_32BITINODES; | |
535 | ||
536 | if (mp->m_flags & XFS_MOUNT_32BITINODES) { | |
537 | /* | |
538 | * Calculate how much should be reserved for inodes to meet | |
539 | * the max inode percentage. | |
540 | */ | |
541 | if (mp->m_maxicount) { | |
14f8b681 | 542 | uint64_t icount; |
56b2de80 DC |
543 | |
544 | icount = sbp->sb_dblocks * sbp->sb_imax_pct; | |
545 | do_div(icount, 100); | |
546 | icount += sbp->sb_agblocks - 1; | |
547 | do_div(icount, sbp->sb_agblocks); | |
548 | max_metadata = icount; | |
549 | } else { | |
550 | max_metadata = agcount; | |
551 | } | |
552 | ||
553 | for (index = 0; index < agcount; index++) { | |
554 | ino = XFS_AGINO_TO_INO(mp, index, agino); | |
555 | if (ino > XFS_MAXINUMBER_32) { | |
556 | index++; | |
557 | break; | |
558 | } | |
559 | ||
560 | pag = xfs_perag_get(mp, index); | |
561 | pag->pagi_inodeok = 1; | |
562 | if (index < max_metadata) | |
563 | pag->pagf_metadata = 1; | |
564 | xfs_perag_put(pag); | |
565 | } | |
566 | } else { | |
567 | for (index = 0; index < agcount; index++) { | |
568 | pag = xfs_perag_get(mp, index); | |
569 | pag->pagi_inodeok = 1; | |
570 | xfs_perag_put(pag); | |
571 | } | |
572 | } | |
573 | ||
574 | if (maxagi) | |
575 | *maxagi = index; | |
ef5340cd DW |
576 | |
577 | mp->m_ag_prealloc_blocks = xfs_prealloc_blocks(mp); | |
56b2de80 DC |
578 | return 0; |
579 | ||
580 | out_unwind: | |
581 | kmem_free(pag); | |
582 | for (; index > first_initialised; index--) { | |
583 | pag = radix_tree_delete(&mp->m_perag_tree, index); | |
584 | kmem_free(pag); | |
585 | } | |
586 | return error; | |
587 | } | |
588 | ||
75c8b434 DC |
589 | static struct xfs_buftarg * |
590 | libxfs_buftarg_alloc( | |
591 | struct xfs_mount *mp, | |
592 | dev_t dev) | |
593 | { | |
594 | struct xfs_buftarg *btp; | |
595 | ||
596 | btp = malloc(sizeof(*btp)); | |
597 | if (!btp) { | |
598 | fprintf(stderr, _("%s: buftarg init failed\n"), | |
599 | progname); | |
600 | exit(1); | |
601 | } | |
602 | btp->bt_mount = mp; | |
603 | btp->dev = dev; | |
604 | return btp; | |
605 | } | |
606 | ||
607 | void | |
608 | libxfs_buftarg_init( | |
609 | struct xfs_mount *mp, | |
610 | dev_t dev, | |
611 | dev_t logdev, | |
612 | dev_t rtdev) | |
613 | { | |
614 | if (mp->m_ddev_targp) { | |
615 | /* should already have all buftargs initialised */ | |
616 | if (mp->m_ddev_targp->dev != dev || | |
617 | mp->m_ddev_targp->bt_mount != mp) { | |
618 | fprintf(stderr, | |
619 | _("%s: bad buftarg reinit, ddev\n"), | |
620 | progname); | |
621 | exit(1); | |
622 | } | |
623 | if (!logdev || logdev == dev) { | |
624 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
625 | fprintf(stderr, | |
626 | _("%s: bad buftarg reinit, ldev mismatch\n"), | |
627 | progname); | |
628 | exit(1); | |
629 | } | |
630 | } else if (mp->m_logdev_targp->dev != logdev || | |
631 | mp->m_logdev_targp->bt_mount != mp) { | |
632 | fprintf(stderr, | |
633 | _("%s: bad buftarg reinit, logdev\n"), | |
634 | progname); | |
635 | exit(1); | |
636 | } | |
637 | if (rtdev && (mp->m_rtdev_targp->dev != rtdev || | |
638 | mp->m_rtdev_targp->bt_mount != mp)) { | |
639 | fprintf(stderr, | |
640 | _("%s: bad buftarg reinit, rtdev\n"), | |
641 | progname); | |
642 | exit(1); | |
643 | } | |
644 | return; | |
645 | } | |
646 | ||
647 | mp->m_ddev_targp = libxfs_buftarg_alloc(mp, dev); | |
648 | if (!logdev || logdev == dev) | |
649 | mp->m_logdev_targp = mp->m_ddev_targp; | |
650 | else | |
651 | mp->m_logdev_targp = libxfs_buftarg_alloc(mp, logdev); | |
652 | mp->m_rtdev_targp = libxfs_buftarg_alloc(mp, rtdev); | |
653 | } | |
654 | ||
2bd0ea18 NS |
655 | /* |
656 | * Mount structure initialization, provides a filled-in xfs_mount_t | |
657 | * such that the numerous XFS_* macros can be used. If dev is zero, | |
658 | * no IO will be performed (no size checks, read root inodes). | |
659 | */ | |
660 | xfs_mount_t * | |
661 | libxfs_mount( | |
662 | xfs_mount_t *mp, | |
663 | xfs_sb_t *sb, | |
664 | dev_t dev, | |
665 | dev_t logdev, | |
666 | dev_t rtdev, | |
4ca431fc | 667 | int flags) |
2bd0ea18 NS |
668 | { |
669 | xfs_daddr_t d; | |
670 | xfs_buf_t *bp; | |
671 | xfs_sb_t *sbp; | |
2bd0ea18 NS |
672 | int error; |
673 | ||
75c8b434 DC |
674 | libxfs_buftarg_init(mp, dev, logdev, rtdev); |
675 | ||
6239071d | 676 | mp->m_flags = (LIBXFS_MOUNT_32BITINODES|LIBXFS_MOUNT_32BITINOOPT); |
2bd0ea18 | 677 | mp->m_sb = *sb; |
56b2de80 | 678 | INIT_RADIX_TREE(&mp->m_perag_tree, GFP_KERNEL); |
2bd0ea18 | 679 | sbp = &(mp->m_sb); |
2bd0ea18 | 680 | |
4896e6c8 | 681 | xfs_sb_mount_common(mp, sb); |
2bd0ea18 | 682 | |
5e656dbb BN |
683 | xfs_alloc_compute_maxlevels(mp); |
684 | xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK); | |
685 | xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK); | |
686 | xfs_ialloc_compute_maxlevels(mp); | |
b3a96b46 | 687 | xfs_rmapbt_compute_maxlevels(mp); |
e7be6330 | 688 | xfs_refcountbt_compute_maxlevels(mp); |
2bd0ea18 NS |
689 | |
690 | if (sbp->sb_imax_pct) { | |
691 | /* Make sure the maximum inode count is a multiple of the | |
692 | * units we allocate inodes in. | |
693 | */ | |
694 | mp->m_maxicount = (sbp->sb_dblocks * sbp->sb_imax_pct) / 100; | |
695 | mp->m_maxicount = ((mp->m_maxicount / mp->m_ialloc_blks) * | |
696 | mp->m_ialloc_blks) << sbp->sb_inopblog; | |
697 | } else | |
698 | mp->m_maxicount = 0; | |
699 | ||
700 | mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE; | |
2a3145a8 DW |
701 | if (xfs_sb_version_hascrc(&mp->m_sb)) { |
702 | int new_size = mp->m_inode_cluster_size; | |
703 | ||
704 | new_size *= mp->m_sb.sb_inodesize / XFS_DINODE_MIN_SIZE; | |
705 | if (mp->m_sb.sb_inoalignmt >= XFS_B_TO_FSBT(mp, new_size)) | |
706 | mp->m_inode_cluster_size = new_size; | |
707 | } | |
2bd0ea18 | 708 | |
949c0f10 NS |
709 | /* |
710 | * Set whether we're using stripe alignment. | |
711 | */ | |
5e656dbb | 712 | if (xfs_sb_version_hasdalign(&mp->m_sb)) { |
949c0f10 NS |
713 | mp->m_dalign = sbp->sb_unit; |
714 | mp->m_swidth = sbp->sb_width; | |
715 | } | |
716 | ||
2bd0ea18 NS |
717 | /* |
718 | * Set whether we're using inode alignment. | |
719 | */ | |
5e656dbb | 720 | if (xfs_sb_version_hasalign(&mp->m_sb) && |
2bd0ea18 NS |
721 | mp->m_sb.sb_inoalignmt >= |
722 | XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size)) | |
723 | mp->m_inoalign_mask = mp->m_sb.sb_inoalignmt - 1; | |
724 | else | |
725 | mp->m_inoalign_mask = 0; | |
726 | /* | |
727 | * If we are using stripe alignment, check whether | |
728 | * the stripe unit is a multiple of the inode alignment | |
729 | */ | |
b3563c19 | 730 | if (mp->m_dalign && mp->m_inoalign_mask && |
5e656dbb | 731 | !(mp->m_dalign & mp->m_inoalign_mask)) |
2bd0ea18 NS |
732 | mp->m_sinoalign = mp->m_dalign; |
733 | else | |
734 | mp->m_sinoalign = 0; | |
735 | ||
736 | /* | |
737 | * Check that the data (and log if separate) are an ok size. | |
738 | */ | |
9440d84d | 739 | d = (xfs_daddr_t) XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks); |
2bd0ea18 | 740 | if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) { |
9440d84d | 741 | fprintf(stderr, _("%s: size check failed\n"), progname); |
4ca431fc NS |
742 | if (!(flags & LIBXFS_MOUNT_DEBUGGER)) |
743 | return NULL; | |
2bd0ea18 NS |
744 | } |
745 | ||
ff105f75 DC |
746 | /* |
747 | * We automatically convert v1 inodes to v2 inodes now, so if | |
748 | * the NLINK bit is not set we can't operate on the filesystem. | |
749 | */ | |
750 | if (!(sbp->sb_versionnum & XFS_SB_VERSION_NLINKBIT)) { | |
751 | ||
752 | fprintf(stderr, _( | |
753 | "%s: V1 inodes unsupported. Please try an older xfsprogs.\n"), | |
754 | progname); | |
755 | exit(1); | |
756 | } | |
757 | ||
758 | /* Check for supported directory formats */ | |
759 | if (!(sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT)) { | |
9a048535 DC |
760 | |
761 | fprintf(stderr, _( | |
762 | "%s: V1 directories unsupported. Please try an older xfsprogs.\n"), | |
763 | progname); | |
764 | exit(1); | |
5e656dbb | 765 | } |
2bd0ea18 | 766 | |
ff105f75 DC |
767 | /* check for unsupported other features */ |
768 | if (!xfs_sb_good_version(sbp)) { | |
769 | fprintf(stderr, _( | |
770 | "%s: Unsupported features detected. Please try a newer xfsprogs.\n"), | |
771 | progname); | |
772 | exit(1); | |
773 | } | |
774 | ||
775 | xfs_da_mount(mp); | |
776 | ||
5e656dbb BN |
777 | if (xfs_sb_version_hasattr2(&mp->m_sb)) |
778 | mp->m_flags |= LIBXFS_MOUNT_ATTR2; | |
57c9fccb | 779 | |
2bd0ea18 | 780 | /* Initialize the precomputed transaction reservations values */ |
5e656dbb | 781 | xfs_trans_init(mp); |
2bd0ea18 NS |
782 | |
783 | if (dev == 0) /* maxtrres, we have no device so leave now */ | |
784 | return mp; | |
785 | ||
9440d84d | 786 | bp = libxfs_readbuf(mp->m_dev, |
4ca431fc | 787 | d - XFS_FSS_TO_BB(mp, 1), XFS_FSS_TO_BB(mp, 1), |
75c8b434 | 788 | !(flags & LIBXFS_MOUNT_DEBUGGER), NULL); |
9440d84d NS |
789 | if (!bp) { |
790 | fprintf(stderr, _("%s: data size check failed\n"), progname); | |
4ca431fc NS |
791 | if (!(flags & LIBXFS_MOUNT_DEBUGGER)) |
792 | return NULL; | |
32244196 BN |
793 | } else |
794 | libxfs_putbuf(bp); | |
2bd0ea18 | 795 | |
75c8b434 DC |
796 | if (mp->m_logdev_targp->dev && |
797 | mp->m_logdev_targp->dev != mp->m_ddev_targp->dev) { | |
9440d84d | 798 | d = (xfs_daddr_t) XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); |
2bd0ea18 | 799 | if ( (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) || |
75c8b434 | 800 | (!(bp = libxfs_readbuf(mp->m_logdev_targp, |
9440d84d | 801 | d - XFS_FSB_TO_BB(mp, 1), |
4ca431fc | 802 | XFS_FSB_TO_BB(mp, 1), |
75c8b434 | 803 | !(flags & LIBXFS_MOUNT_DEBUGGER), NULL))) ) { |
9440d84d | 804 | fprintf(stderr, _("%s: log size checks failed\n"), |
2bd0ea18 | 805 | progname); |
4ca431fc NS |
806 | if (!(flags & LIBXFS_MOUNT_DEBUGGER)) |
807 | return NULL; | |
2bd0ea18 | 808 | } |
32244196 BN |
809 | if (bp) |
810 | libxfs_putbuf(bp); | |
2bd0ea18 NS |
811 | } |
812 | ||
813 | /* Initialize realtime fields in the mount structure */ | |
39798eb5 | 814 | if (rtmount_init(mp, flags)) { |
9440d84d NS |
815 | fprintf(stderr, _("%s: realtime device init failed\n"), |
816 | progname); | |
4ca431fc | 817 | return NULL; |
2bd0ea18 NS |
818 | } |
819 | ||
a547152d ES |
820 | /* |
821 | * libxfs_initialize_perag will allocate a perag structure for each ag. | |
822 | * If agcount is corrupted and insanely high, this will OOM the box. | |
823 | * If the agount seems (arbitrarily) high, try to read what would be | |
824 | * the last AG, and if that fails for a relatively high agcount, just | |
825 | * read the first one and let the user know to check the geometry. | |
826 | */ | |
827 | if (sbp->sb_agcount > 1000000) { | |
828 | bp = libxfs_readbuf(mp->m_dev, | |
829 | XFS_AG_DADDR(mp, sbp->sb_agcount - 1, 0), 1, | |
830 | !(flags & LIBXFS_MOUNT_DEBUGGER), NULL); | |
831 | if (bp->b_error) { | |
832 | fprintf(stderr, _("%s: read of AG %u failed\n"), | |
833 | progname, sbp->sb_agcount); | |
834 | if (!(flags & LIBXFS_MOUNT_DEBUGGER)) | |
835 | return NULL; | |
836 | fprintf(stderr, _("%s: limiting reads to AG 0\n"), | |
837 | progname); | |
838 | sbp->sb_agcount = 1; | |
839 | } | |
840 | libxfs_putbuf(bp); | |
841 | } | |
842 | ||
56b2de80 DC |
843 | error = libxfs_initialize_perag(mp, sbp->sb_agcount, &mp->m_maxagi); |
844 | if (error) { | |
845 | fprintf(stderr, _("%s: perag init failed\n"), | |
846 | progname); | |
2bd0ea18 NS |
847 | exit(1); |
848 | } | |
849 | ||
2bd0ea18 NS |
850 | return mp; |
851 | } | |
852 | ||
f1b058f9 NS |
853 | void |
854 | libxfs_rtmount_destroy(xfs_mount_t *mp) | |
855 | { | |
856 | if (mp->m_rsumip) | |
dd2c21d2 | 857 | IRELE(mp->m_rsumip); |
f1b058f9 | 858 | if (mp->m_rbmip) |
dd2c21d2 | 859 | IRELE(mp->m_rbmip); |
f1b058f9 NS |
860 | mp->m_rsumip = mp->m_rbmip = NULL; |
861 | } | |
862 | ||
2bd0ea18 | 863 | /* |
9440d84d | 864 | * Release any resource obtained during a mount. |
2bd0ea18 NS |
865 | */ |
866 | void | |
867 | libxfs_umount(xfs_mount_t *mp) | |
868 | { | |
56b2de80 DC |
869 | struct xfs_perag *pag; |
870 | int agno; | |
871 | ||
f1b058f9 | 872 | libxfs_rtmount_destroy(mp); |
f1b058f9 NS |
873 | libxfs_bcache_purge(); |
874 | ||
56b2de80 DC |
875 | for (agno = 0; agno < mp->m_maxagi; agno++) { |
876 | pag = radix_tree_delete(&mp->m_perag_tree, agno); | |
877 | kmem_free(pag); | |
fceb0d99 | 878 | } |
4334e2e8 ES |
879 | |
880 | kmem_free(mp->m_attr_geo); | |
881 | kmem_free(mp->m_dir_geo); | |
882 | ||
883 | kmem_free(mp->m_rtdev_targp); | |
884 | if (mp->m_logdev_targp != mp->m_ddev_targp) | |
885 | kmem_free(mp->m_logdev_targp); | |
886 | kmem_free(mp->m_ddev_targp); | |
f8149110 | 887 | |
2bd0ea18 | 888 | } |
f1b058f9 NS |
889 | |
890 | /* | |
891 | * Release any global resources used by libxfs. | |
892 | */ | |
893 | void | |
894 | libxfs_destroy(void) | |
895 | { | |
44488491 ES |
896 | int leaked; |
897 | ||
864028ed ES |
898 | /* Free everything from the buffer cache before freeing buffer zone */ |
899 | libxfs_bcache_purge(); | |
900 | libxfs_bcache_free(); | |
f1b058f9 | 901 | cache_destroy(libxfs_bcache); |
44488491 ES |
902 | leaked = manage_zones(1); |
903 | if (getenv("LIBXFS_LEAK_CHECK") && leaked) | |
904 | exit(1); | |
f1b058f9 | 905 | } |
9f38f08d | 906 | |
b74a1f6a NS |
907 | int |
908 | libxfs_device_alignment(void) | |
909 | { | |
910 | return platform_align_blockdev(); | |
911 | } | |
912 | ||
9f38f08d | 913 | void |
b6281496 | 914 | libxfs_report(FILE *fp) |
9f38f08d | 915 | { |
cb5b3ef4 MV |
916 | time_t t; |
917 | char *c; | |
918 | ||
b6281496 | 919 | cache_report(fp, "libxfs_bcache", libxfs_bcache); |
cb5b3ef4 MV |
920 | |
921 | t = time(NULL); | |
922 | c = asctime(localtime(&t)); | |
923 | fprintf(fp, "%s", c); | |
924 | } | |
3b6ac903 MV |
925 | |
926 | int | |
927 | libxfs_nproc(void) | |
928 | { | |
30a757b7 DW |
929 | int nr; |
930 | ||
931 | nr = platform_nproc(); | |
932 | if (nr < 1) | |
933 | nr = 1; | |
934 | return nr; | |
3b6ac903 | 935 | } |
2556c98b BN |
936 | |
937 | unsigned long | |
938 | libxfs_physmem(void) | |
939 | { | |
940 | return platform_physmem(); | |
e08f5594 | 941 | } |