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Commit | Line | Data |
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959ef981 | 1 | // SPDX-License-Identifier: GPL-2.0 |
2bd0ea18 | 2 | /* |
da23017d NS |
3 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
2bd0ea18 NS |
5 | */ |
6 | ||
2bd0ea18 | 7 | #include <sys/stat.h> |
9440d84d | 8 | #include "init.h" |
29e62271 | 9 | |
9c799827 | 10 | #include "libxfs_priv.h" |
b626fb59 DC |
11 | #include "xfs_fs.h" |
12 | #include "xfs_shared.h" | |
13 | #include "xfs_format.h" | |
14 | #include "xfs_log_format.h" | |
15 | #include "xfs_trans_resv.h" | |
16 | #include "xfs_mount.h" | |
794a5604 | 17 | #include "xfs_defer.h" |
b626fb59 DC |
18 | #include "xfs_inode_buf.h" |
19 | #include "xfs_inode_fork.h" | |
20 | #include "xfs_inode.h" | |
21 | #include "xfs_trans.h" | |
b3a96b46 | 22 | #include "xfs_rmap_btree.h" |
e7be6330 | 23 | #include "xfs_refcount_btree.h" |
b658de93 | 24 | #include "libfrog/platform.h" |
b626fb59 | 25 | |
6b803e5a | 26 | #include "libxfs.h" /* for now */ |
b626fb59 | 27 | |
7448af58 DW |
28 | #ifndef HAVE_LIBURCU_ATOMIC64 |
29 | pthread_mutex_t atomic64_lock = PTHREAD_MUTEX_INITIALIZER; | |
30 | #endif | |
31 | ||
2bd0ea18 NS |
32 | char *progname = "libxfs"; /* default, changed by each tool */ |
33 | ||
f1b058f9 | 34 | struct cache *libxfs_bcache; /* global buffer cache */ |
9f38f08d | 35 | int libxfs_bhash_size; /* #buckets in bcache */ |
f1b058f9 | 36 | |
167137fe | 37 | int use_xfs_buf_lock; /* global flag: use xfs_buf locks for MT */ |
d0572de5 | 38 | |
2bd0ea18 NS |
39 | /* |
40 | * dev_map - map open devices to fd. | |
41 | */ | |
42 | #define MAX_DEVS 10 /* arbitary maximum */ | |
00ff2b10 | 43 | static int nextfakedev = -1; /* device number to give to next fake device */ |
2bd0ea18 | 44 | static struct dev_to_fd { |
9440d84d NS |
45 | dev_t dev; |
46 | int fd; | |
2bd0ea18 NS |
47 | } dev_map[MAX_DEVS]={{0}}; |
48 | ||
2bd0ea18 NS |
49 | /* |
50 | * Checks whether a given device has a mounted, writable | |
51 | * filesystem, returns 1 if it does & fatal (just warns | |
52 | * if not fatal, but allows us to proceed). | |
5000d01d | 53 | * |
2bd0ea18 NS |
54 | * Useful to tools which will produce uncertain results |
55 | * if the filesystem is active - repair, check, logprint. | |
56 | */ | |
57 | static int | |
58 | check_isactive(char *name, char *block, int fatal) | |
59 | { | |
f594a0d1 | 60 | struct stat st; |
2bd0ea18 | 61 | |
f594a0d1 | 62 | if (stat(block, &st) < 0) |
9440d84d | 63 | return 0; |
fc8202ba | 64 | if ((st.st_mode & S_IFMT) != S_IFBLK) |
9440d84d | 65 | return 0; |
93d9f139 | 66 | if (platform_check_ismounted(name, block, &st, 0) == 0) |
9440d84d | 67 | return 0; |
7f510afb ES |
68 | if (platform_check_iswritable(name, block, &st)) |
69 | return fatal ? 1 : 0; | |
70 | return 0; | |
2bd0ea18 NS |
71 | } |
72 | ||
5000d01d | 73 | /* libxfs_device_to_fd: |
2bd0ea18 NS |
74 | * lookup a device number in the device map |
75 | * return the associated fd | |
76 | */ | |
77 | int | |
78 | libxfs_device_to_fd(dev_t device) | |
79 | { | |
9440d84d | 80 | int d; |
5000d01d | 81 | |
9440d84d | 82 | for (d = 0; d < MAX_DEVS; d++) |
5000d01d | 83 | if (dev_map[d].dev == device) |
2bd0ea18 | 84 | return dev_map[d].fd; |
5000d01d | 85 | |
9440d84d NS |
86 | fprintf(stderr, _("%s: %s: device %lld is not open\n"), |
87 | progname, __FUNCTION__, (long long)device); | |
2bd0ea18 | 88 | exit(1); |
25d246df | 89 | /* NOTREACHED */ |
2bd0ea18 NS |
90 | } |
91 | ||
92 | /* libxfs_device_open: | |
93 | * open a device and return its device number | |
94 | */ | |
95 | dev_t | |
7eb6693f | 96 | libxfs_device_open(char *path, int creat, int xflags, int setblksize) |
2bd0ea18 | 97 | { |
2bd0ea18 | 98 | dev_t dev; |
7eb6693f | 99 | int fd, d, flags; |
b74a1f6a | 100 | int readonly, dio, excl; |
f594a0d1 | 101 | struct stat statb; |
7eb6693f NS |
102 | |
103 | readonly = (xflags & LIBXFS_ISREADONLY); | |
104 | excl = (xflags & LIBXFS_EXCLUSIVELY) && !creat; | |
b74a1f6a | 105 | dio = (xflags & LIBXFS_DIRECT) && !creat && platform_direct_blockdev(); |
2bd0ea18 | 106 | |
b74a1f6a | 107 | retry: |
7eb6693f NS |
108 | flags = (readonly ? O_RDONLY : O_RDWR) | \ |
109 | (creat ? (O_CREAT|O_TRUNC) : 0) | \ | |
b74a1f6a | 110 | (dio ? O_DIRECT : 0) | \ |
7eb6693f | 111 | (excl ? O_EXCL : 0); |
b74a1f6a | 112 | |
7eb6693f | 113 | if ((fd = open(path, flags, 0666)) < 0) { |
b74a1f6a NS |
114 | if (errno == EINVAL && --dio == 0) |
115 | goto retry; | |
9440d84d | 116 | fprintf(stderr, _("%s: cannot open %s: %s\n"), |
2bd0ea18 NS |
117 | progname, path, strerror(errno)); |
118 | exit(1); | |
119 | } | |
120 | ||
f594a0d1 | 121 | if (fstat(fd, &statb) < 0) { |
9440d84d | 122 | fprintf(stderr, _("%s: cannot stat %s: %s\n"), |
2bd0ea18 NS |
123 | progname, path, strerror(errno)); |
124 | exit(1); | |
125 | } | |
a33a9e62 | 126 | |
edd45774 TS |
127 | if (!readonly && setblksize && (statb.st_mode & S_IFMT) == S_IFBLK) { |
128 | if (setblksize == 1) | |
129 | /* use the default blocksize */ | |
130 | (void)platform_set_blocksize(fd, path, statb.st_rdev, XFS_MIN_SECTORSIZE, 0); | |
131 | else { | |
132 | /* given an explicit blocksize to use */ | |
133 | if (platform_set_blocksize(fd, path, statb.st_rdev, setblksize, 1)) | |
134 | exit(1); | |
135 | } | |
136 | } | |
2bd0ea18 | 137 | |
a33a9e62 NS |
138 | /* |
139 | * Get the device number from the stat buf - unless | |
2bd0ea18 | 140 | * we're not opening a real device, in which case |
a33a9e62 | 141 | * choose a new fake device number. |
2bd0ea18 | 142 | */ |
32181a02 | 143 | dev = (statb.st_rdev) ? (statb.st_rdev) : (nextfakedev--); |
2bd0ea18 | 144 | |
32181a02 | 145 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 146 | if (dev_map[d].dev == dev) { |
9440d84d | 147 | fprintf(stderr, _("%s: device %lld is already open\n"), |
5b64e00a | 148 | progname, (long long)dev); |
2bd0ea18 NS |
149 | exit(1); |
150 | } | |
151 | ||
32181a02 | 152 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 153 | if (!dev_map[d].dev) { |
32181a02 NS |
154 | dev_map[d].dev = dev; |
155 | dev_map[d].fd = fd; | |
5000d01d | 156 | |
2bd0ea18 NS |
157 | return dev; |
158 | } | |
159 | ||
9440d84d NS |
160 | fprintf(stderr, _("%s: %s: too many open devices\n"), |
161 | progname, __FUNCTION__); | |
2bd0ea18 | 162 | exit(1); |
25d246df | 163 | /* NOTREACHED */ |
2bd0ea18 NS |
164 | } |
165 | ||
166 | void | |
167 | libxfs_device_close(dev_t dev) | |
168 | { | |
5000d01d | 169 | int d; |
2bd0ea18 | 170 | |
32181a02 | 171 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 172 | if (dev_map[d].dev == dev) { |
023ba280 | 173 | int fd, ret; |
5000d01d | 174 | |
32181a02 NS |
175 | fd = dev_map[d].fd; |
176 | dev_map[d].dev = dev_map[d].fd = 0; | |
5000d01d | 177 | |
023ba280 DW |
178 | ret = platform_flush_device(fd, dev); |
179 | if (ret) { | |
180 | ret = -errno; | |
181 | fprintf(stderr, | |
182 | _("%s: flush of device %lld failed, err=%d"), | |
183 | progname, (long long)dev, ret); | |
184 | } | |
2bd0ea18 | 185 | close(fd); |
5000d01d | 186 | |
2bd0ea18 NS |
187 | return; |
188 | } | |
189 | ||
9440d84d NS |
190 | fprintf(stderr, _("%s: %s: device %lld is not open\n"), |
191 | progname, __FUNCTION__, (long long)dev); | |
2bd0ea18 NS |
192 | exit(1); |
193 | } | |
194 | ||
74668075 NS |
195 | static int |
196 | check_open(char *path, int flags, char **rawfile, char **blockfile) | |
197 | { | |
c781939c RC |
198 | int readonly = (flags & LIBXFS_ISREADONLY); |
199 | int inactive = (flags & LIBXFS_ISINACTIVE); | |
200 | int dangerously = (flags & LIBXFS_DANGEROUSLY); | |
f594a0d1 | 201 | struct stat stbuf; |
c781939c | 202 | |
f594a0d1 | 203 | if (stat(path, &stbuf) < 0) { |
c781939c RC |
204 | perror(path); |
205 | return 0; | |
206 | } | |
b74a1f6a | 207 | if (!(*rawfile = platform_findrawpath(path))) { |
c781939c RC |
208 | fprintf(stderr, _("%s: " |
209 | "can't find a character device matching %s\n"), | |
210 | progname, path); | |
211 | return 0; | |
212 | } | |
b74a1f6a | 213 | if (!(*blockfile = platform_findblockpath(path))) { |
c781939c RC |
214 | fprintf(stderr, _("%s: " |
215 | "can't find a block device matching %s\n"), | |
216 | progname, path); | |
217 | return 0; | |
218 | } | |
219 | if (!readonly && !inactive && platform_check_ismounted(path, *blockfile, NULL, 1)) | |
220 | return 0; | |
e08f5594 | 221 | |
c781939c RC |
222 | if (inactive && check_isactive(path, *blockfile, ((readonly|dangerously)?1:0))) |
223 | return 0; | |
224 | ||
225 | return 1; | |
226 | } | |
227 | ||
7a326ce0 | 228 | /* |
2e1394fc | 229 | * Initialize/destroy all of the cache allocators we use. |
7a326ce0 ES |
230 | */ |
231 | static void | |
2e1394fc | 232 | init_caches(void) |
7a326ce0 | 233 | { |
7d10d094 DW |
234 | int error; |
235 | ||
2e1394fc DW |
236 | /* initialise cache allocation */ |
237 | xfs_buf_cache = kmem_cache_init(sizeof(struct xfs_buf), "xfs_buffer"); | |
238 | xfs_inode_cache = kmem_cache_init(sizeof(struct xfs_inode), "xfs_inode"); | |
239 | xfs_ifork_cache = kmem_cache_init(sizeof(struct xfs_ifork), "xfs_ifork"); | |
240 | xfs_ili_cache = kmem_cache_init( | |
7a326ce0 | 241 | sizeof(struct xfs_inode_log_item),"xfs_inode_log_item"); |
2e1394fc | 242 | xfs_buf_item_cache = kmem_cache_init( |
7a326ce0 | 243 | sizeof(struct xfs_buf_log_item), "xfs_buf_log_item"); |
1577541c DW |
244 | error = xfs_defer_init_item_caches(); |
245 | if (error) { | |
246 | fprintf(stderr, "Could not allocate defer init item caches.\n"); | |
247 | abort(); | |
248 | } | |
2e1394fc | 249 | xfs_da_state_cache = kmem_cache_init( |
7a326ce0 | 250 | sizeof(struct xfs_da_state), "xfs_da_state"); |
7d10d094 DW |
251 | error = xfs_btree_init_cur_caches(); |
252 | if (error) { | |
253 | fprintf(stderr, "Could not allocate btree cursor caches.\n"); | |
254 | abort(); | |
255 | } | |
7d84b02d | 256 | xfs_extfree_item_cache = kmem_cache_init( |
7a326ce0 | 257 | sizeof(struct xfs_extent_free_item), |
7d84b02d | 258 | "xfs_extfree_item"); |
2e1394fc | 259 | xfs_trans_cache = kmem_cache_init( |
7a326ce0 ES |
260 | sizeof(struct xfs_trans), "xfs_trans"); |
261 | } | |
262 | ||
263 | static int | |
2e1394fc | 264 | destroy_caches(void) |
7a326ce0 ES |
265 | { |
266 | int leaked = 0; | |
267 | ||
2e1394fc DW |
268 | leaked += kmem_cache_destroy(xfs_buf_cache); |
269 | leaked += kmem_cache_destroy(xfs_ili_cache); | |
270 | leaked += kmem_cache_destroy(xfs_inode_cache); | |
271 | leaked += kmem_cache_destroy(xfs_ifork_cache); | |
272 | leaked += kmem_cache_destroy(xfs_buf_item_cache); | |
273 | leaked += kmem_cache_destroy(xfs_da_state_cache); | |
1577541c | 274 | xfs_defer_destroy_item_caches(); |
7d10d094 | 275 | xfs_btree_destroy_cur_caches(); |
7d84b02d | 276 | leaked += kmem_cache_destroy(xfs_extfree_item_cache); |
2e1394fc | 277 | leaked += kmem_cache_destroy(xfs_trans_cache); |
7a326ce0 ES |
278 | |
279 | return leaked; | |
280 | } | |
281 | ||
a9468486 DW |
282 | static void |
283 | libxfs_close_devices( | |
284 | struct libxfs_xinit *li) | |
285 | { | |
286 | if (li->ddev) | |
287 | libxfs_device_close(li->ddev); | |
288 | if (li->logdev && li->logdev != li->ddev) | |
289 | libxfs_device_close(li->logdev); | |
290 | if (li->rtdev) | |
291 | libxfs_device_close(li->rtdev); | |
292 | ||
293 | li->ddev = li->logdev = li->rtdev = 0; | |
294 | li->dfd = li->logfd = li->rtfd = -1; | |
295 | } | |
296 | ||
2bd0ea18 NS |
297 | /* |
298 | * libxfs initialization. | |
299 | * Caller gets a 0 on failure (and we print a message), 1 on success. | |
300 | */ | |
301 | int | |
302 | libxfs_init(libxfs_init_t *a) | |
303 | { | |
304 | char *blockfile; | |
2bd0ea18 NS |
305 | char *dname; |
306 | char dpath[25]; | |
307 | int fd; | |
308 | char *logname; | |
309 | char logpath[25]; | |
2bd0ea18 NS |
310 | char *rawfile; |
311 | char *rtname; | |
312 | char rtpath[25]; | |
313 | int rval = 0; | |
c781939c | 314 | int flags; |
2bd0ea18 NS |
315 | |
316 | dpath[0] = logpath[0] = rtpath[0] = '\0'; | |
317 | dname = a->dname; | |
318 | logname = a->logname; | |
319 | rtname = a->rtname; | |
2bd0ea18 | 320 | a->dfd = a->logfd = a->rtfd = -1; |
74668075 | 321 | a->ddev = a->logdev = a->rtdev = 0; |
06ac92fd DC |
322 | a->dsize = a->lbsize = a->rtbsize = 0; |
323 | a->dbsize = a->logBBsize = a->logBBstart = a->rtsize = 0; | |
2bd0ea18 | 324 | |
2bd0ea18 | 325 | fd = -1; |
b74a1f6a | 326 | flags = (a->isreadonly | a->isdirect); |
c781939c | 327 | |
e4da1b16 DC |
328 | rcu_init(); |
329 | rcu_register_thread(); | |
bacd44a5 AE |
330 | radix_tree_init(); |
331 | ||
2bd0ea18 | 332 | if (a->volname) { |
c781939c | 333 | if(!check_open(a->volname,flags,&rawfile,&blockfile)) |
2bd0ea18 | 334 | goto done; |
2bd0ea18 | 335 | fd = open(rawfile, O_RDONLY); |
eb37fca5 NS |
336 | dname = a->dname = a->volname; |
337 | a->volname = NULL; | |
2bd0ea18 | 338 | } |
2bd0ea18 | 339 | if (dname) { |
2bd0ea18 | 340 | if (a->disfile) { |
7eb6693f | 341 | a->ddev= libxfs_device_open(dname, a->dcreat, flags, |
c5907b96 | 342 | a->setblksize); |
2bd0ea18 | 343 | a->dfd = libxfs_device_to_fd(a->ddev); |
06ac92fd DC |
344 | platform_findsizes(dname, a->dfd, &a->dsize, |
345 | &a->dbsize); | |
2bd0ea18 | 346 | } else { |
f02037ce | 347 | if (!check_open(dname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
348 | goto done; |
349 | a->ddev = libxfs_device_open(rawfile, | |
7eb6693f | 350 | a->dcreat, flags, a->setblksize); |
2bd0ea18 | 351 | a->dfd = libxfs_device_to_fd(a->ddev); |
f02037ce | 352 | platform_findsizes(rawfile, a->dfd, |
06ac92fd | 353 | &a->dsize, &a->dbsize); |
2bd0ea18 | 354 | } |
2bd0ea18 NS |
355 | } else |
356 | a->dsize = 0; | |
357 | if (logname) { | |
2bd0ea18 NS |
358 | if (a->lisfile) { |
359 | a->logdev = libxfs_device_open(logname, | |
7eb6693f | 360 | a->lcreat, flags, a->setblksize); |
2bd0ea18 | 361 | a->logfd = libxfs_device_to_fd(a->logdev); |
06ac92fd DC |
362 | platform_findsizes(dname, a->logfd, &a->logBBsize, |
363 | &a->lbsize); | |
2bd0ea18 | 364 | } else { |
f02037ce | 365 | if (!check_open(logname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
366 | goto done; |
367 | a->logdev = libxfs_device_open(rawfile, | |
7eb6693f | 368 | a->lcreat, flags, a->setblksize); |
2bd0ea18 | 369 | a->logfd = libxfs_device_to_fd(a->logdev); |
f02037ce | 370 | platform_findsizes(rawfile, a->logfd, |
06ac92fd | 371 | &a->logBBsize, &a->lbsize); |
2bd0ea18 | 372 | } |
2bd0ea18 NS |
373 | } else |
374 | a->logBBsize = 0; | |
375 | if (rtname) { | |
2bd0ea18 NS |
376 | if (a->risfile) { |
377 | a->rtdev = libxfs_device_open(rtname, | |
7eb6693f | 378 | a->rcreat, flags, a->setblksize); |
2bd0ea18 | 379 | a->rtfd = libxfs_device_to_fd(a->rtdev); |
06ac92fd DC |
380 | platform_findsizes(dname, a->rtfd, &a->rtsize, |
381 | &a->rtbsize); | |
2bd0ea18 | 382 | } else { |
f02037ce | 383 | if (!check_open(rtname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
384 | goto done; |
385 | a->rtdev = libxfs_device_open(rawfile, | |
7eb6693f | 386 | a->rcreat, flags, a->setblksize); |
2bd0ea18 | 387 | a->rtfd = libxfs_device_to_fd(a->rtdev); |
f02037ce | 388 | platform_findsizes(rawfile, a->rtfd, |
06ac92fd | 389 | &a->rtsize, &a->rtbsize); |
2bd0ea18 | 390 | } |
2bd0ea18 NS |
391 | } else |
392 | a->rtsize = 0; | |
393 | if (a->dsize < 0) { | |
9440d84d | 394 | fprintf(stderr, _("%s: can't get size for data subvolume\n"), |
2bd0ea18 NS |
395 | progname); |
396 | goto done; | |
397 | } | |
398 | if (a->logBBsize < 0) { | |
9440d84d | 399 | fprintf(stderr, _("%s: can't get size for log subvolume\n"), |
2bd0ea18 NS |
400 | progname); |
401 | goto done; | |
402 | } | |
403 | if (a->rtsize < 0) { | |
9440d84d | 404 | fprintf(stderr, _("%s: can't get size for realtime subvolume\n"), |
2bd0ea18 NS |
405 | progname); |
406 | goto done; | |
407 | } | |
9f38f08d MV |
408 | if (!libxfs_bhash_size) |
409 | libxfs_bhash_size = LIBXFS_BHASHSIZE(sbp); | |
ba9ecd40 DC |
410 | libxfs_bcache = cache_init(a->bcache_flags, libxfs_bhash_size, |
411 | &libxfs_bcache_operations); | |
d0572de5 | 412 | use_xfs_buf_lock = a->usebuflock; |
7a326ce0 | 413 | xfs_dir_startup(); |
2e1394fc | 414 | init_caches(); |
2bd0ea18 NS |
415 | rval = 1; |
416 | done: | |
417 | if (dpath[0]) | |
418 | unlink(dpath); | |
419 | if (logpath[0]) | |
420 | unlink(logpath); | |
421 | if (rtpath[0]) | |
422 | unlink(rtpath); | |
423 | if (fd >= 0) | |
424 | close(fd); | |
c1ab394a | 425 | if (!rval) { |
a9468486 | 426 | libxfs_close_devices(a); |
c1ab394a DW |
427 | rcu_unregister_thread(); |
428 | } | |
a9468486 | 429 | |
2bd0ea18 NS |
430 | return rval; |
431 | } | |
432 | ||
433 | ||
b391b7cd NS |
434 | /* |
435 | * Initialize realtime fields in the mount structure. | |
436 | */ | |
437 | static int | |
438 | rtmount_init( | |
2420d095 | 439 | xfs_mount_t *mp) /* file system mount structure */ |
b391b7cd | 440 | { |
31079e67 | 441 | struct xfs_buf *bp; /* buffer for last block of subvolume */ |
b391b7cd | 442 | xfs_daddr_t d; /* address of last block of subvolume */ |
31079e67 | 443 | int error; |
b391b7cd | 444 | |
575f24e5 | 445 | if (mp->m_sb.sb_rblocks == 0) |
b391b7cd | 446 | return 0; |
4aaeedc4 | 447 | |
eefdf2ab | 448 | if (xfs_has_reflink(mp)) { |
4aaeedc4 DW |
449 | fprintf(stderr, |
450 | _("%s: Reflink not compatible with realtime device. Please try a newer xfsprogs.\n"), | |
451 | progname); | |
452 | return -1; | |
453 | } | |
454 | ||
eefdf2ab | 455 | if (xfs_has_rmapbt(mp)) { |
4aaeedc4 DW |
456 | fprintf(stderr, |
457 | _("%s: Reverse mapping btree not compatible with realtime device. Please try a newer xfsprogs.\n"), | |
458 | progname); | |
459 | return -1; | |
460 | } | |
461 | ||
2420d095 | 462 | if (mp->m_rtdev_targp->bt_bdev == 0 && !xfs_is_debugger(mp)) { |
9440d84d | 463 | fprintf(stderr, _("%s: filesystem has a realtime subvolume\n"), |
b391b7cd NS |
464 | progname); |
465 | return -1; | |
466 | } | |
575f24e5 | 467 | mp->m_rsumlevels = mp->m_sb.sb_rextslog + 1; |
b391b7cd NS |
468 | mp->m_rsumsize = |
469 | (uint)sizeof(xfs_suminfo_t) * mp->m_rsumlevels * | |
575f24e5 DW |
470 | mp->m_sb.sb_rbmblocks; |
471 | mp->m_rsumsize = roundup(mp->m_rsumsize, mp->m_sb.sb_blocksize); | |
b391b7cd | 472 | mp->m_rbmip = mp->m_rsumip = NULL; |
39798eb5 NS |
473 | |
474 | /* | |
475 | * Allow debugger to be run without the realtime device present. | |
476 | */ | |
2420d095 | 477 | if (xfs_is_debugger(mp)) |
39798eb5 NS |
478 | return 0; |
479 | ||
b391b7cd NS |
480 | /* |
481 | * Check that the realtime section is an ok size. | |
482 | */ | |
483 | d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_rblocks); | |
484 | if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_rblocks) { | |
9440d84d NS |
485 | fprintf(stderr, _("%s: realtime init - %llu != %llu\n"), |
486 | progname, (unsigned long long) XFS_BB_TO_FSB(mp, d), | |
b391b7cd NS |
487 | (unsigned long long) mp->m_sb.sb_rblocks); |
488 | return -1; | |
489 | } | |
31079e67 DW |
490 | error = libxfs_buf_read(mp->m_rtdev, d - XFS_FSB_TO_BB(mp, 1), |
491 | XFS_FSB_TO_BB(mp, 1), 0, &bp, NULL); | |
492 | if (error) { | |
9440d84d NS |
493 | fprintf(stderr, _("%s: realtime size check failed\n"), |
494 | progname); | |
b391b7cd NS |
495 | return -1; |
496 | } | |
e02ba985 | 497 | libxfs_buf_relse(bp); |
b391b7cd NS |
498 | return 0; |
499 | } | |
500 | ||
b9ee1227 DW |
501 | /* |
502 | * Set parameters for inode allocation heuristics, taking into account | |
503 | * filesystem size and inode32/inode64 mount options; i.e. specifically | |
504 | * whether or not XFS_MOUNT_SMALL_INUMS is set. | |
505 | * | |
506 | * Inode allocation patterns are altered only if inode32 is requested | |
507 | * (XFS_MOUNT_SMALL_INUMS), and the filesystem is sufficiently large. | |
508 | * If altered, XFS_MOUNT_32BITINODES is set as well. | |
509 | * | |
510 | * An agcount independent of that in the mount structure is provided | |
511 | * because in the growfs case, mp->m_sb.sb_agcount is not yet updated | |
512 | * to the potentially higher ag count. | |
513 | * | |
514 | * Returns the maximum AG index which may contain inodes. | |
ed8f5980 DW |
515 | * |
516 | * NOTE: userspace has no concept of "inode32" and so xfs_has_small_inums | |
517 | * is always false, and much of this code is a no-op. | |
b9ee1227 DW |
518 | */ |
519 | xfs_agnumber_t | |
520 | xfs_set_inode_alloc( | |
521 | struct xfs_mount *mp, | |
522 | xfs_agnumber_t agcount) | |
523 | { | |
524 | xfs_agnumber_t index; | |
525 | xfs_agnumber_t maxagi = 0; | |
526 | xfs_sb_t *sbp = &mp->m_sb; | |
527 | xfs_agnumber_t max_metadata; | |
528 | xfs_agino_t agino; | |
529 | xfs_ino_t ino; | |
530 | ||
531 | /* | |
532 | * Calculate how much should be reserved for inodes to meet | |
533 | * the max inode percentage. Used only for inode32. | |
534 | */ | |
535 | if (M_IGEO(mp)->maxicount) { | |
536 | uint64_t icount; | |
537 | ||
538 | icount = sbp->sb_dblocks * sbp->sb_imax_pct; | |
539 | do_div(icount, 100); | |
540 | icount += sbp->sb_agblocks - 1; | |
541 | do_div(icount, sbp->sb_agblocks); | |
542 | max_metadata = icount; | |
543 | } else { | |
544 | max_metadata = agcount; | |
545 | } | |
546 | ||
547 | /* Get the last possible inode in the filesystem */ | |
548 | agino = XFS_AGB_TO_AGINO(mp, sbp->sb_agblocks - 1); | |
549 | ino = XFS_AGINO_TO_INO(mp, agcount - 1, agino); | |
550 | ||
551 | /* | |
552 | * If user asked for no more than 32-bit inodes, and the fs is | |
553 | * sufficiently large, set XFS_MOUNT_32BITINODES if we must alter | |
554 | * the allocator to accommodate the request. | |
555 | */ | |
ed8f5980 | 556 | if (xfs_has_small_inums(mp) && ino > XFS_MAXINUMBER_32) |
0ee9753e | 557 | xfs_set_inode32(mp); |
ed8f5980 | 558 | else |
0ee9753e | 559 | xfs_clear_inode32(mp); |
b9ee1227 DW |
560 | |
561 | for (index = 0; index < agcount; index++) { | |
562 | struct xfs_perag *pag; | |
563 | ||
564 | ino = XFS_AGINO_TO_INO(mp, index, agino); | |
565 | ||
566 | pag = xfs_perag_get(mp, index); | |
567 | ||
0ee9753e | 568 | if (xfs_is_inode32(mp)) { |
b9ee1227 DW |
569 | if (ino > XFS_MAXINUMBER_32) { |
570 | pag->pagi_inodeok = 0; | |
571 | pag->pagf_metadata = 0; | |
572 | } else { | |
573 | pag->pagi_inodeok = 1; | |
574 | maxagi++; | |
575 | if (index < max_metadata) | |
576 | pag->pagf_metadata = 1; | |
577 | else | |
578 | pag->pagf_metadata = 0; | |
579 | } | |
580 | } else { | |
581 | pag->pagi_inodeok = 1; | |
582 | pag->pagf_metadata = 0; | |
583 | } | |
584 | ||
585 | xfs_perag_put(pag); | |
586 | } | |
587 | ||
0ee9753e | 588 | return xfs_is_inode32(mp) ? maxagi : agcount; |
b9ee1227 DW |
589 | } |
590 | ||
75c8b434 DC |
591 | static struct xfs_buftarg * |
592 | libxfs_buftarg_alloc( | |
593 | struct xfs_mount *mp, | |
704e4cef DW |
594 | dev_t dev, |
595 | unsigned long write_fails) | |
75c8b434 DC |
596 | { |
597 | struct xfs_buftarg *btp; | |
598 | ||
599 | btp = malloc(sizeof(*btp)); | |
600 | if (!btp) { | |
601 | fprintf(stderr, _("%s: buftarg init failed\n"), | |
602 | progname); | |
603 | exit(1); | |
604 | } | |
605 | btp->bt_mount = mp; | |
ab434d12 | 606 | btp->bt_bdev = dev; |
c335b673 | 607 | btp->flags = 0; |
704e4cef DW |
608 | if (write_fails) { |
609 | btp->writes_left = write_fails; | |
610 | btp->flags |= XFS_BUFTARG_INJECT_WRITE_FAIL; | |
611 | } | |
612 | pthread_mutex_init(&btp->lock, NULL); | |
c335b673 | 613 | |
75c8b434 DC |
614 | return btp; |
615 | } | |
616 | ||
704e4cef DW |
617 | enum libxfs_write_failure_nums { |
618 | WF_DATA = 0, | |
619 | WF_LOG, | |
620 | WF_RT, | |
621 | WF_MAX_OPTS, | |
622 | }; | |
623 | ||
624 | static char *wf_opts[] = { | |
625 | [WF_DATA] = "ddev", | |
626 | [WF_LOG] = "logdev", | |
627 | [WF_RT] = "rtdev", | |
628 | [WF_MAX_OPTS] = NULL, | |
629 | }; | |
630 | ||
75c8b434 DC |
631 | void |
632 | libxfs_buftarg_init( | |
633 | struct xfs_mount *mp, | |
634 | dev_t dev, | |
635 | dev_t logdev, | |
636 | dev_t rtdev) | |
637 | { | |
704e4cef DW |
638 | char *p = getenv("LIBXFS_DEBUG_WRITE_CRASH"); |
639 | unsigned long dfail = 0, lfail = 0, rfail = 0; | |
640 | ||
641 | /* Simulate utility crash after a certain number of writes. */ | |
642 | while (p && *p) { | |
643 | char *val; | |
644 | ||
645 | switch (getsubopt(&p, wf_opts, &val)) { | |
646 | case WF_DATA: | |
647 | if (!val) { | |
648 | fprintf(stderr, | |
649 | _("ddev write fail requires a parameter\n")); | |
650 | exit(1); | |
651 | } | |
652 | dfail = strtoul(val, NULL, 0); | |
653 | break; | |
654 | case WF_LOG: | |
655 | if (!val) { | |
656 | fprintf(stderr, | |
657 | _("logdev write fail requires a parameter\n")); | |
658 | exit(1); | |
659 | } | |
660 | lfail = strtoul(val, NULL, 0); | |
661 | break; | |
662 | case WF_RT: | |
663 | if (!val) { | |
664 | fprintf(stderr, | |
665 | _("rtdev write fail requires a parameter\n")); | |
666 | exit(1); | |
667 | } | |
668 | rfail = strtoul(val, NULL, 0); | |
669 | break; | |
670 | default: | |
671 | fprintf(stderr, _("unknown write fail type %s\n"), | |
672 | val); | |
673 | exit(1); | |
674 | break; | |
675 | } | |
676 | } | |
677 | ||
75c8b434 DC |
678 | if (mp->m_ddev_targp) { |
679 | /* should already have all buftargs initialised */ | |
ab434d12 | 680 | if (mp->m_ddev_targp->bt_bdev != dev || |
75c8b434 DC |
681 | mp->m_ddev_targp->bt_mount != mp) { |
682 | fprintf(stderr, | |
683 | _("%s: bad buftarg reinit, ddev\n"), | |
684 | progname); | |
685 | exit(1); | |
686 | } | |
687 | if (!logdev || logdev == dev) { | |
688 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
689 | fprintf(stderr, | |
690 | _("%s: bad buftarg reinit, ldev mismatch\n"), | |
691 | progname); | |
692 | exit(1); | |
693 | } | |
ab434d12 | 694 | } else if (mp->m_logdev_targp->bt_bdev != logdev || |
75c8b434 DC |
695 | mp->m_logdev_targp->bt_mount != mp) { |
696 | fprintf(stderr, | |
697 | _("%s: bad buftarg reinit, logdev\n"), | |
698 | progname); | |
699 | exit(1); | |
700 | } | |
ab434d12 | 701 | if (rtdev && (mp->m_rtdev_targp->bt_bdev != rtdev || |
75c8b434 DC |
702 | mp->m_rtdev_targp->bt_mount != mp)) { |
703 | fprintf(stderr, | |
704 | _("%s: bad buftarg reinit, rtdev\n"), | |
705 | progname); | |
706 | exit(1); | |
707 | } | |
708 | return; | |
709 | } | |
710 | ||
704e4cef | 711 | mp->m_ddev_targp = libxfs_buftarg_alloc(mp, dev, dfail); |
75c8b434 DC |
712 | if (!logdev || logdev == dev) |
713 | mp->m_logdev_targp = mp->m_ddev_targp; | |
714 | else | |
704e4cef DW |
715 | mp->m_logdev_targp = libxfs_buftarg_alloc(mp, logdev, lfail); |
716 | mp->m_rtdev_targp = libxfs_buftarg_alloc(mp, rtdev, rfail); | |
75c8b434 DC |
717 | } |
718 | ||
6afce48f DW |
719 | /* Compute maximum possible height for per-AG btree types for this fs. */ |
720 | static inline void | |
721 | xfs_agbtree_compute_maxlevels( | |
722 | struct xfs_mount *mp) | |
723 | { | |
724 | unsigned int levels; | |
725 | ||
726 | levels = max(mp->m_alloc_maxlevels, M_IGEO(mp)->inobt_maxlevels); | |
727 | levels = max(levels, mp->m_rmap_maxlevels); | |
728 | mp->m_agbtree_maxlevels = max(levels, mp->m_refc_maxlevels); | |
729 | } | |
730 | ||
7aeffc87 DW |
731 | /* Compute maximum possible height of all btrees. */ |
732 | void | |
733 | libxfs_compute_all_maxlevels( | |
734 | struct xfs_mount *mp) | |
735 | { | |
736 | xfs_alloc_compute_maxlevels(mp); | |
737 | xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK); | |
738 | xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK); | |
739 | xfs_ialloc_setup_geometry(mp); | |
740 | xfs_rmapbt_compute_maxlevels(mp); | |
741 | xfs_refcountbt_compute_maxlevels(mp); | |
742 | ||
743 | xfs_agbtree_compute_maxlevels(mp); | |
744 | } | |
745 | ||
2bd0ea18 NS |
746 | /* |
747 | * Mount structure initialization, provides a filled-in xfs_mount_t | |
748 | * such that the numerous XFS_* macros can be used. If dev is zero, | |
749 | * no IO will be performed (no size checks, read root inodes). | |
750 | */ | |
d855bce8 | 751 | struct xfs_mount * |
2bd0ea18 | 752 | libxfs_mount( |
d855bce8 DW |
753 | struct xfs_mount *mp, |
754 | struct xfs_sb *sb, | |
755 | dev_t dev, | |
756 | dev_t logdev, | |
757 | dev_t rtdev, | |
ed8f5980 | 758 | unsigned int flags) |
2bd0ea18 | 759 | { |
d855bce8 DW |
760 | struct xfs_buf *bp; |
761 | struct xfs_sb *sbp; | |
762 | xfs_daddr_t d; | |
d855bce8 | 763 | int error; |
2bd0ea18 | 764 | |
3bc1fdd4 | 765 | mp->m_features = xfs_sb_version_to_features(sb); |
2420d095 DW |
766 | if (flags & LIBXFS_MOUNT_DEBUGGER) |
767 | xfs_set_debugger(mp); | |
e42c53f3 | 768 | if (flags & LIBXFS_MOUNT_REPORT_CORRUPTION) |
2420d095 | 769 | xfs_set_reporting_corruption(mp); |
75c8b434 DC |
770 | libxfs_buftarg_init(mp, dev, logdev, rtdev); |
771 | ||
f747f7dd | 772 | mp->m_finobt_nores = true; |
0ee9753e | 773 | xfs_set_inode32(mp); |
2bd0ea18 | 774 | mp->m_sb = *sb; |
56b2de80 | 775 | INIT_RADIX_TREE(&mp->m_perag_tree, GFP_KERNEL); |
686bddf9 DC |
776 | sbp = &mp->m_sb; |
777 | spin_lock_init(&mp->m_sb_lock); | |
778 | spin_lock_init(&mp->m_agirotor_lock); | |
2bd0ea18 | 779 | |
4896e6c8 | 780 | xfs_sb_mount_common(mp, sb); |
2bd0ea18 | 781 | |
949c0f10 NS |
782 | /* |
783 | * Set whether we're using stripe alignment. | |
784 | */ | |
2660e653 | 785 | if (xfs_has_dalign(mp)) { |
949c0f10 NS |
786 | mp->m_dalign = sbp->sb_unit; |
787 | mp->m_swidth = sbp->sb_width; | |
788 | } | |
789 | ||
7aeffc87 | 790 | libxfs_compute_all_maxlevels(mp); |
6afce48f | 791 | |
2bd0ea18 NS |
792 | /* |
793 | * Check that the data (and log if separate) are an ok size. | |
794 | */ | |
9440d84d | 795 | d = (xfs_daddr_t) XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks); |
2bd0ea18 | 796 | if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) { |
9440d84d | 797 | fprintf(stderr, _("%s: size check failed\n"), progname); |
2420d095 | 798 | if (!xfs_is_debugger(mp)) |
4ca431fc | 799 | return NULL; |
2bd0ea18 NS |
800 | } |
801 | ||
ff105f75 DC |
802 | /* |
803 | * We automatically convert v1 inodes to v2 inodes now, so if | |
804 | * the NLINK bit is not set we can't operate on the filesystem. | |
805 | */ | |
806 | if (!(sbp->sb_versionnum & XFS_SB_VERSION_NLINKBIT)) { | |
807 | ||
808 | fprintf(stderr, _( | |
809 | "%s: V1 inodes unsupported. Please try an older xfsprogs.\n"), | |
810 | progname); | |
811 | exit(1); | |
812 | } | |
813 | ||
814 | /* Check for supported directory formats */ | |
815 | if (!(sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT)) { | |
9a048535 DC |
816 | |
817 | fprintf(stderr, _( | |
818 | "%s: V1 directories unsupported. Please try an older xfsprogs.\n"), | |
819 | progname); | |
820 | exit(1); | |
5e656dbb | 821 | } |
2bd0ea18 | 822 | |
ff105f75 DC |
823 | /* check for unsupported other features */ |
824 | if (!xfs_sb_good_version(sbp)) { | |
825 | fprintf(stderr, _( | |
826 | "%s: Unsupported features detected. Please try a newer xfsprogs.\n"), | |
827 | progname); | |
828 | exit(1); | |
829 | } | |
830 | ||
831 | xfs_da_mount(mp); | |
832 | ||
2bd0ea18 | 833 | /* Initialize the precomputed transaction reservations values */ |
5e656dbb | 834 | xfs_trans_init(mp); |
2bd0ea18 NS |
835 | |
836 | if (dev == 0) /* maxtrres, we have no device so leave now */ | |
837 | return mp; | |
838 | ||
d855bce8 | 839 | /* device size checks must pass unless we're a debugger. */ |
31079e67 DW |
840 | error = libxfs_buf_read(mp->m_dev, d - XFS_FSS_TO_BB(mp, 1), |
841 | XFS_FSS_TO_BB(mp, 1), 0, &bp, NULL); | |
842 | if (error) { | |
9440d84d | 843 | fprintf(stderr, _("%s: data size check failed\n"), progname); |
2420d095 | 844 | if (!xfs_is_debugger(mp)) |
4ca431fc | 845 | return NULL; |
32244196 | 846 | } else |
e02ba985 | 847 | libxfs_buf_relse(bp); |
2bd0ea18 | 848 | |
ab434d12 DC |
849 | if (mp->m_logdev_targp->bt_bdev && |
850 | mp->m_logdev_targp->bt_bdev != mp->m_ddev_targp->bt_bdev) { | |
9440d84d | 851 | d = (xfs_daddr_t) XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); |
31079e67 DW |
852 | if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks || |
853 | libxfs_buf_read(mp->m_logdev_targp, | |
854 | d - XFS_FSB_TO_BB(mp, 1), XFS_FSB_TO_BB(mp, 1), | |
855 | 0, &bp, NULL)) { | |
9440d84d | 856 | fprintf(stderr, _("%s: log size checks failed\n"), |
2bd0ea18 | 857 | progname); |
2420d095 | 858 | if (!xfs_is_debugger(mp)) |
4ca431fc | 859 | return NULL; |
2bd0ea18 | 860 | } |
32244196 | 861 | if (bp) |
e02ba985 | 862 | libxfs_buf_relse(bp); |
2bd0ea18 NS |
863 | } |
864 | ||
865 | /* Initialize realtime fields in the mount structure */ | |
2420d095 | 866 | if (rtmount_init(mp)) { |
9440d84d NS |
867 | fprintf(stderr, _("%s: realtime device init failed\n"), |
868 | progname); | |
4ca431fc | 869 | return NULL; |
2bd0ea18 NS |
870 | } |
871 | ||
a547152d ES |
872 | /* |
873 | * libxfs_initialize_perag will allocate a perag structure for each ag. | |
874 | * If agcount is corrupted and insanely high, this will OOM the box. | |
875 | * If the agount seems (arbitrarily) high, try to read what would be | |
876 | * the last AG, and if that fails for a relatively high agcount, just | |
877 | * read the first one and let the user know to check the geometry. | |
878 | */ | |
879 | if (sbp->sb_agcount > 1000000) { | |
31079e67 | 880 | error = libxfs_buf_read(mp->m_dev, |
a547152d | 881 | XFS_AG_DADDR(mp, sbp->sb_agcount - 1, 0), 1, |
31079e67 DW |
882 | 0, &bp, NULL); |
883 | if (error) { | |
a547152d ES |
884 | fprintf(stderr, _("%s: read of AG %u failed\n"), |
885 | progname, sbp->sb_agcount); | |
2420d095 | 886 | if (!xfs_is_debugger(mp)) |
a547152d ES |
887 | return NULL; |
888 | fprintf(stderr, _("%s: limiting reads to AG 0\n"), | |
889 | progname); | |
890 | sbp->sb_agcount = 1; | |
31079e67 DW |
891 | } else |
892 | libxfs_buf_relse(bp); | |
a547152d ES |
893 | } |
894 | ||
83af0d13 DC |
895 | error = libxfs_initialize_perag(mp, sbp->sb_agcount, sbp->sb_dblocks, |
896 | &mp->m_maxagi); | |
56b2de80 DC |
897 | if (error) { |
898 | fprintf(stderr, _("%s: perag init failed\n"), | |
899 | progname); | |
2bd0ea18 NS |
900 | exit(1); |
901 | } | |
2420d095 | 902 | xfs_set_perag_data_loaded(mp); |
2bd0ea18 | 903 | |
2bd0ea18 NS |
904 | return mp; |
905 | } | |
906 | ||
f1b058f9 NS |
907 | void |
908 | libxfs_rtmount_destroy(xfs_mount_t *mp) | |
909 | { | |
910 | if (mp->m_rsumip) | |
31845e4c | 911 | libxfs_irele(mp->m_rsumip); |
f1b058f9 | 912 | if (mp->m_rbmip) |
31845e4c | 913 | libxfs_irele(mp->m_rbmip); |
f1b058f9 NS |
914 | mp->m_rsumip = mp->m_rbmip = NULL; |
915 | } | |
916 | ||
c335b673 DW |
917 | /* Flush a device and report on writes that didn't make it to stable storage. */ |
918 | static inline int | |
919 | libxfs_flush_buftarg( | |
920 | struct xfs_buftarg *btp, | |
921 | const char *buftarg_descr) | |
922 | { | |
923 | int error = 0; | |
924 | int err2; | |
925 | ||
926 | /* | |
927 | * Write verifier failures are evidence of a buggy program. Make sure | |
928 | * that this state is always reported to the caller. | |
929 | */ | |
930 | if (btp->flags & XFS_BUFTARG_CORRUPT_WRITE) { | |
931 | fprintf(stderr, | |
932 | _("%s: Refusing to write a corrupt buffer to the %s!\n"), | |
933 | progname, buftarg_descr); | |
934 | error = -EFSCORRUPTED; | |
935 | } | |
936 | ||
937 | if (btp->flags & XFS_BUFTARG_LOST_WRITE) { | |
938 | fprintf(stderr, | |
939 | _("%s: Lost a write to the %s!\n"), | |
940 | progname, buftarg_descr); | |
941 | if (!error) | |
942 | error = -EIO; | |
943 | } | |
944 | ||
945 | err2 = libxfs_blkdev_issue_flush(btp); | |
946 | if (err2) { | |
947 | fprintf(stderr, | |
948 | _("%s: Flushing the %s failed, err=%d!\n"), | |
949 | progname, buftarg_descr, -err2); | |
950 | } | |
951 | if (!error) | |
952 | error = err2; | |
953 | ||
954 | return error; | |
955 | } | |
956 | ||
957 | /* | |
958 | * Flush all dirty buffers to stable storage and report on writes that didn't | |
959 | * make it to stable storage. | |
960 | */ | |
a7348c58 | 961 | int |
c335b673 DW |
962 | libxfs_flush_mount( |
963 | struct xfs_mount *mp) | |
964 | { | |
965 | int error = 0; | |
966 | int err2; | |
967 | ||
968 | /* | |
a7348c58 DW |
969 | * Flush the buffer cache to write all dirty buffers to disk. Buffers |
970 | * that fail write verification will cause the CORRUPT_WRITE flag to be | |
971 | * set in the buftarg. Buffers that cannot be written will cause the | |
972 | * LOST_WRITE flag to be set in the buftarg. Once that's done, | |
973 | * instruct the disks to persist their write caches. | |
c335b673 | 974 | */ |
a7348c58 | 975 | libxfs_bcache_flush(); |
c335b673 DW |
976 | |
977 | /* Flush all kernel and disk write caches, and report failures. */ | |
978 | if (mp->m_ddev_targp) { | |
979 | err2 = libxfs_flush_buftarg(mp->m_ddev_targp, _("data device")); | |
980 | if (!error) | |
981 | error = err2; | |
982 | } | |
983 | ||
984 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
985 | err2 = libxfs_flush_buftarg(mp->m_logdev_targp, | |
986 | _("log device")); | |
987 | if (!error) | |
988 | error = err2; | |
989 | } | |
990 | ||
991 | if (mp->m_rtdev_targp) { | |
992 | err2 = libxfs_flush_buftarg(mp->m_rtdev_targp, | |
993 | _("realtime device")); | |
994 | if (!error) | |
995 | error = err2; | |
996 | } | |
997 | ||
998 | return error; | |
999 | } | |
1000 | ||
2bd0ea18 | 1001 | /* |
9440d84d | 1002 | * Release any resource obtained during a mount. |
2bd0ea18 | 1003 | */ |
c335b673 DW |
1004 | int |
1005 | libxfs_umount( | |
1006 | struct xfs_mount *mp) | |
2bd0ea18 | 1007 | { |
c335b673 | 1008 | int error; |
56b2de80 | 1009 | |
f1b058f9 | 1010 | libxfs_rtmount_destroy(mp); |
c335b673 | 1011 | |
a7348c58 DW |
1012 | /* |
1013 | * Purge the buffer cache to write all dirty buffers to disk and free | |
1014 | * all incore buffers, then pick up the outcome when we tell the disks | |
1015 | * to persist their write caches. | |
1016 | */ | |
1017 | libxfs_bcache_purge(); | |
c335b673 | 1018 | error = libxfs_flush_mount(mp); |
f1b058f9 | 1019 | |
7bf9cd9d DW |
1020 | /* |
1021 | * Only try to free the per-AG structures if we set them up in the | |
1022 | * first place. | |
1023 | */ | |
2420d095 | 1024 | if (xfs_is_perag_data_loaded(mp)) |
4bcd30f6 | 1025 | libxfs_free_perag(mp); |
4334e2e8 ES |
1026 | |
1027 | kmem_free(mp->m_attr_geo); | |
1028 | kmem_free(mp->m_dir_geo); | |
1029 | ||
1030 | kmem_free(mp->m_rtdev_targp); | |
1031 | if (mp->m_logdev_targp != mp->m_ddev_targp) | |
1032 | kmem_free(mp->m_logdev_targp); | |
1033 | kmem_free(mp->m_ddev_targp); | |
f8149110 | 1034 | |
c335b673 | 1035 | return error; |
2bd0ea18 | 1036 | } |
f1b058f9 NS |
1037 | |
1038 | /* | |
1039 | * Release any global resources used by libxfs. | |
1040 | */ | |
1041 | void | |
a9468486 DW |
1042 | libxfs_destroy( |
1043 | struct libxfs_xinit *li) | |
f1b058f9 | 1044 | { |
a9468486 DW |
1045 | int leaked; |
1046 | ||
1047 | libxfs_close_devices(li); | |
44488491 | 1048 | |
2e1394fc | 1049 | /* Free everything from the buffer cache before freeing buffer cache */ |
864028ed ES |
1050 | libxfs_bcache_purge(); |
1051 | libxfs_bcache_free(); | |
f1b058f9 | 1052 | cache_destroy(libxfs_bcache); |
2e1394fc | 1053 | leaked = destroy_caches(); |
e4da1b16 | 1054 | rcu_unregister_thread(); |
44488491 ES |
1055 | if (getenv("LIBXFS_LEAK_CHECK") && leaked) |
1056 | exit(1); | |
f1b058f9 | 1057 | } |
9f38f08d | 1058 | |
b74a1f6a NS |
1059 | int |
1060 | libxfs_device_alignment(void) | |
1061 | { | |
1062 | return platform_align_blockdev(); | |
1063 | } | |
1064 | ||
9f38f08d | 1065 | void |
b6281496 | 1066 | libxfs_report(FILE *fp) |
9f38f08d | 1067 | { |
cb5b3ef4 MV |
1068 | time_t t; |
1069 | char *c; | |
1070 | ||
b6281496 | 1071 | cache_report(fp, "libxfs_bcache", libxfs_bcache); |
cb5b3ef4 MV |
1072 | |
1073 | t = time(NULL); | |
1074 | c = asctime(localtime(&t)); | |
1075 | fprintf(fp, "%s", c); | |
1076 | } |