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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" | |
29 | #include "xfs_inode_buf.h" | |
30 | #include "xfs_inode_fork.h" | |
31 | #include "xfs_inode.h" | |
32 | #include "xfs_trans.h" | |
33 | ||
6b803e5a | 34 | #include "libxfs.h" /* for now */ |
b626fb59 | 35 | |
2bd0ea18 NS |
36 | char *progname = "libxfs"; /* default, changed by each tool */ |
37 | ||
f1b058f9 | 38 | struct cache *libxfs_bcache; /* global buffer cache */ |
9f38f08d | 39 | int libxfs_bhash_size; /* #buckets in bcache */ |
f1b058f9 | 40 | |
d0572de5 BN |
41 | int use_xfs_buf_lock; /* global flag: use xfs_buf_t locks for MT */ |
42 | ||
f1b058f9 NS |
43 | static void manage_zones(int); /* setup global zones */ |
44 | ||
1d519883 DC |
45 | kmem_zone_t *xfs_inode_zone; |
46 | ||
2bd0ea18 NS |
47 | /* |
48 | * dev_map - map open devices to fd. | |
49 | */ | |
50 | #define MAX_DEVS 10 /* arbitary maximum */ | |
51 | int nextfakedev = -1; /* device number to give to next fake device */ | |
52 | static struct dev_to_fd { | |
9440d84d NS |
53 | dev_t dev; |
54 | int fd; | |
2bd0ea18 NS |
55 | } dev_map[MAX_DEVS]={{0}}; |
56 | ||
2bd0ea18 NS |
57 | /* |
58 | * Checks whether a given device has a mounted, writable | |
59 | * filesystem, returns 1 if it does & fatal (just warns | |
60 | * if not fatal, but allows us to proceed). | |
5000d01d | 61 | * |
2bd0ea18 NS |
62 | * Useful to tools which will produce uncertain results |
63 | * if the filesystem is active - repair, check, logprint. | |
64 | */ | |
65 | static int | |
66 | check_isactive(char *name, char *block, int fatal) | |
67 | { | |
9440d84d | 68 | struct stat64 st; |
2bd0ea18 | 69 | |
fc8202ba | 70 | if (stat64(block, &st) < 0) |
9440d84d | 71 | return 0; |
fc8202ba | 72 | if ((st.st_mode & S_IFMT) != S_IFBLK) |
9440d84d | 73 | return 0; |
93d9f139 | 74 | if (platform_check_ismounted(name, block, &st, 0) == 0) |
9440d84d | 75 | return 0; |
93d9f139 | 76 | return platform_check_iswritable(name, block, &st, fatal); |
2bd0ea18 NS |
77 | } |
78 | ||
5000d01d | 79 | /* libxfs_device_to_fd: |
2bd0ea18 NS |
80 | * lookup a device number in the device map |
81 | * return the associated fd | |
82 | */ | |
83 | int | |
84 | libxfs_device_to_fd(dev_t device) | |
85 | { | |
9440d84d | 86 | int d; |
5000d01d | 87 | |
9440d84d | 88 | for (d = 0; d < MAX_DEVS; d++) |
5000d01d | 89 | if (dev_map[d].dev == device) |
2bd0ea18 | 90 | return dev_map[d].fd; |
5000d01d | 91 | |
9440d84d NS |
92 | fprintf(stderr, _("%s: %s: device %lld is not open\n"), |
93 | progname, __FUNCTION__, (long long)device); | |
2bd0ea18 | 94 | exit(1); |
25d246df | 95 | /* NOTREACHED */ |
2bd0ea18 NS |
96 | } |
97 | ||
98 | /* libxfs_device_open: | |
99 | * open a device and return its device number | |
100 | */ | |
101 | dev_t | |
7eb6693f | 102 | libxfs_device_open(char *path, int creat, int xflags, int setblksize) |
2bd0ea18 | 103 | { |
2bd0ea18 | 104 | dev_t dev; |
7eb6693f | 105 | int fd, d, flags; |
b74a1f6a | 106 | int readonly, dio, excl; |
7eb6693f NS |
107 | struct stat64 statb; |
108 | ||
109 | readonly = (xflags & LIBXFS_ISREADONLY); | |
110 | excl = (xflags & LIBXFS_EXCLUSIVELY) && !creat; | |
b74a1f6a | 111 | dio = (xflags & LIBXFS_DIRECT) && !creat && platform_direct_blockdev(); |
2bd0ea18 | 112 | |
b74a1f6a | 113 | retry: |
7eb6693f NS |
114 | flags = (readonly ? O_RDONLY : O_RDWR) | \ |
115 | (creat ? (O_CREAT|O_TRUNC) : 0) | \ | |
b74a1f6a | 116 | (dio ? O_DIRECT : 0) | \ |
7eb6693f | 117 | (excl ? O_EXCL : 0); |
b74a1f6a | 118 | |
7eb6693f | 119 | if ((fd = open(path, flags, 0666)) < 0) { |
b74a1f6a NS |
120 | if (errno == EINVAL && --dio == 0) |
121 | goto retry; | |
9440d84d | 122 | fprintf(stderr, _("%s: cannot open %s: %s\n"), |
2bd0ea18 NS |
123 | progname, path, strerror(errno)); |
124 | exit(1); | |
125 | } | |
126 | ||
7eb6693f | 127 | if (fstat64(fd, &statb) < 0) { |
9440d84d | 128 | fprintf(stderr, _("%s: cannot stat %s: %s\n"), |
2bd0ea18 NS |
129 | progname, path, strerror(errno)); |
130 | exit(1); | |
131 | } | |
a33a9e62 | 132 | |
edd45774 TS |
133 | if (!readonly && setblksize && (statb.st_mode & S_IFMT) == S_IFBLK) { |
134 | if (setblksize == 1) | |
135 | /* use the default blocksize */ | |
136 | (void)platform_set_blocksize(fd, path, statb.st_rdev, XFS_MIN_SECTORSIZE, 0); | |
137 | else { | |
138 | /* given an explicit blocksize to use */ | |
139 | if (platform_set_blocksize(fd, path, statb.st_rdev, setblksize, 1)) | |
140 | exit(1); | |
141 | } | |
142 | } | |
2bd0ea18 | 143 | |
a33a9e62 NS |
144 | /* |
145 | * Get the device number from the stat buf - unless | |
2bd0ea18 | 146 | * we're not opening a real device, in which case |
a33a9e62 | 147 | * choose a new fake device number. |
2bd0ea18 | 148 | */ |
32181a02 | 149 | dev = (statb.st_rdev) ? (statb.st_rdev) : (nextfakedev--); |
2bd0ea18 | 150 | |
32181a02 | 151 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 152 | if (dev_map[d].dev == dev) { |
9440d84d | 153 | fprintf(stderr, _("%s: device %lld is already open\n"), |
5b64e00a | 154 | progname, (long long)dev); |
2bd0ea18 NS |
155 | exit(1); |
156 | } | |
157 | ||
32181a02 | 158 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 159 | if (!dev_map[d].dev) { |
32181a02 NS |
160 | dev_map[d].dev = dev; |
161 | dev_map[d].fd = fd; | |
5000d01d | 162 | |
2bd0ea18 NS |
163 | return dev; |
164 | } | |
165 | ||
9440d84d NS |
166 | fprintf(stderr, _("%s: %s: too many open devices\n"), |
167 | progname, __FUNCTION__); | |
2bd0ea18 | 168 | exit(1); |
25d246df | 169 | /* NOTREACHED */ |
2bd0ea18 NS |
170 | } |
171 | ||
172 | void | |
173 | libxfs_device_close(dev_t dev) | |
174 | { | |
5000d01d | 175 | int d; |
2bd0ea18 | 176 | |
32181a02 | 177 | for (d = 0; d < MAX_DEVS; d++) |
2bd0ea18 | 178 | if (dev_map[d].dev == dev) { |
32181a02 | 179 | int fd; |
5000d01d | 180 | |
32181a02 NS |
181 | fd = dev_map[d].fd; |
182 | dev_map[d].dev = dev_map[d].fd = 0; | |
5000d01d | 183 | |
2bd0ea18 | 184 | fsync(fd); |
ac419944 | 185 | platform_flush_device(fd, dev); |
2bd0ea18 | 186 | close(fd); |
5000d01d | 187 | |
2bd0ea18 NS |
188 | return; |
189 | } | |
190 | ||
9440d84d NS |
191 | fprintf(stderr, _("%s: %s: device %lld is not open\n"), |
192 | progname, __FUNCTION__, (long long)dev); | |
2bd0ea18 NS |
193 | exit(1); |
194 | } | |
195 | ||
74668075 NS |
196 | static int |
197 | check_open(char *path, int flags, char **rawfile, char **blockfile) | |
198 | { | |
c781939c RC |
199 | int readonly = (flags & LIBXFS_ISREADONLY); |
200 | int inactive = (flags & LIBXFS_ISINACTIVE); | |
201 | int dangerously = (flags & LIBXFS_DANGEROUSLY); | |
202 | struct stat64 stbuf; | |
203 | ||
204 | if (stat64(path, &stbuf) < 0) { | |
205 | perror(path); | |
206 | return 0; | |
207 | } | |
b74a1f6a | 208 | if (!(*rawfile = platform_findrawpath(path))) { |
c781939c RC |
209 | fprintf(stderr, _("%s: " |
210 | "can't find a character device matching %s\n"), | |
211 | progname, path); | |
212 | return 0; | |
213 | } | |
b74a1f6a | 214 | if (!(*blockfile = platform_findblockpath(path))) { |
c781939c RC |
215 | fprintf(stderr, _("%s: " |
216 | "can't find a block device matching %s\n"), | |
217 | progname, path); | |
218 | return 0; | |
219 | } | |
220 | if (!readonly && !inactive && platform_check_ismounted(path, *blockfile, NULL, 1)) | |
221 | return 0; | |
e08f5594 | 222 | |
c781939c RC |
223 | if (inactive && check_isactive(path, *blockfile, ((readonly|dangerously)?1:0))) |
224 | return 0; | |
225 | ||
226 | return 1; | |
227 | } | |
228 | ||
2bd0ea18 NS |
229 | /* |
230 | * libxfs initialization. | |
231 | * Caller gets a 0 on failure (and we print a message), 1 on success. | |
232 | */ | |
233 | int | |
234 | libxfs_init(libxfs_init_t *a) | |
235 | { | |
236 | char *blockfile; | |
237 | char curdir[MAXPATHLEN]; | |
238 | char *dname; | |
239 | char dpath[25]; | |
240 | int fd; | |
241 | char *logname; | |
242 | char logpath[25]; | |
243 | int needcd; | |
244 | char *rawfile; | |
245 | char *rtname; | |
246 | char rtpath[25]; | |
247 | int rval = 0; | |
c781939c | 248 | int flags; |
2bd0ea18 NS |
249 | |
250 | dpath[0] = logpath[0] = rtpath[0] = '\0'; | |
251 | dname = a->dname; | |
252 | logname = a->logname; | |
253 | rtname = a->rtname; | |
2bd0ea18 | 254 | a->dfd = a->logfd = a->rtfd = -1; |
74668075 | 255 | a->ddev = a->logdev = a->rtdev = 0; |
06ac92fd DC |
256 | a->dsize = a->lbsize = a->rtbsize = 0; |
257 | a->dbsize = a->logBBsize = a->logBBstart = a->rtsize = 0; | |
2bd0ea18 NS |
258 | |
259 | (void)getcwd(curdir,MAXPATHLEN); | |
260 | needcd = 0; | |
261 | fd = -1; | |
b74a1f6a | 262 | flags = (a->isreadonly | a->isdirect); |
c781939c | 263 | |
bacd44a5 AE |
264 | radix_tree_init(); |
265 | ||
2bd0ea18 | 266 | if (a->volname) { |
c781939c | 267 | if(!check_open(a->volname,flags,&rawfile,&blockfile)) |
2bd0ea18 NS |
268 | goto done; |
269 | needcd = 1; | |
270 | fd = open(rawfile, O_RDONLY); | |
eb37fca5 NS |
271 | dname = a->dname = a->volname; |
272 | a->volname = NULL; | |
2bd0ea18 | 273 | } |
2bd0ea18 NS |
274 | if (dname) { |
275 | if (dname[0] != '/' && needcd) | |
276 | chdir(curdir); | |
277 | if (a->disfile) { | |
7eb6693f | 278 | a->ddev= libxfs_device_open(dname, a->dcreat, flags, |
c5907b96 | 279 | a->setblksize); |
2bd0ea18 | 280 | a->dfd = libxfs_device_to_fd(a->ddev); |
06ac92fd DC |
281 | platform_findsizes(dname, a->dfd, &a->dsize, |
282 | &a->dbsize); | |
2bd0ea18 | 283 | } else { |
f02037ce | 284 | if (!check_open(dname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
285 | goto done; |
286 | a->ddev = libxfs_device_open(rawfile, | |
7eb6693f | 287 | a->dcreat, flags, a->setblksize); |
2bd0ea18 | 288 | a->dfd = libxfs_device_to_fd(a->ddev); |
f02037ce | 289 | platform_findsizes(rawfile, a->dfd, |
06ac92fd | 290 | &a->dsize, &a->dbsize); |
2bd0ea18 NS |
291 | } |
292 | needcd = 1; | |
293 | } else | |
294 | a->dsize = 0; | |
295 | if (logname) { | |
296 | if (logname[0] != '/' && needcd) | |
297 | chdir(curdir); | |
298 | if (a->lisfile) { | |
299 | a->logdev = libxfs_device_open(logname, | |
7eb6693f | 300 | a->lcreat, flags, a->setblksize); |
2bd0ea18 | 301 | a->logfd = libxfs_device_to_fd(a->logdev); |
06ac92fd DC |
302 | platform_findsizes(dname, a->logfd, &a->logBBsize, |
303 | &a->lbsize); | |
2bd0ea18 | 304 | } else { |
f02037ce | 305 | if (!check_open(logname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
306 | goto done; |
307 | a->logdev = libxfs_device_open(rawfile, | |
7eb6693f | 308 | a->lcreat, flags, a->setblksize); |
2bd0ea18 | 309 | a->logfd = libxfs_device_to_fd(a->logdev); |
f02037ce | 310 | platform_findsizes(rawfile, a->logfd, |
06ac92fd | 311 | &a->logBBsize, &a->lbsize); |
2bd0ea18 NS |
312 | } |
313 | needcd = 1; | |
314 | } else | |
315 | a->logBBsize = 0; | |
316 | if (rtname) { | |
317 | if (rtname[0] != '/' && needcd) | |
318 | chdir(curdir); | |
319 | if (a->risfile) { | |
320 | a->rtdev = libxfs_device_open(rtname, | |
7eb6693f | 321 | a->rcreat, flags, a->setblksize); |
2bd0ea18 | 322 | a->rtfd = libxfs_device_to_fd(a->rtdev); |
06ac92fd DC |
323 | platform_findsizes(dname, a->rtfd, &a->rtsize, |
324 | &a->rtbsize); | |
2bd0ea18 | 325 | } else { |
f02037ce | 326 | if (!check_open(rtname, flags, &rawfile, &blockfile)) |
2bd0ea18 NS |
327 | goto done; |
328 | a->rtdev = libxfs_device_open(rawfile, | |
7eb6693f | 329 | a->rcreat, flags, a->setblksize); |
2bd0ea18 | 330 | a->rtfd = libxfs_device_to_fd(a->rtdev); |
f02037ce | 331 | platform_findsizes(rawfile, a->rtfd, |
06ac92fd | 332 | &a->rtsize, &a->rtbsize); |
2bd0ea18 NS |
333 | } |
334 | needcd = 1; | |
335 | } else | |
336 | a->rtsize = 0; | |
337 | if (a->dsize < 0) { | |
9440d84d | 338 | fprintf(stderr, _("%s: can't get size for data subvolume\n"), |
2bd0ea18 NS |
339 | progname); |
340 | goto done; | |
341 | } | |
342 | if (a->logBBsize < 0) { | |
9440d84d | 343 | fprintf(stderr, _("%s: can't get size for log subvolume\n"), |
2bd0ea18 NS |
344 | progname); |
345 | goto done; | |
346 | } | |
347 | if (a->rtsize < 0) { | |
9440d84d | 348 | fprintf(stderr, _("%s: can't get size for realtime subvolume\n"), |
2bd0ea18 NS |
349 | progname); |
350 | goto done; | |
351 | } | |
352 | if (needcd) | |
353 | chdir(curdir); | |
9f38f08d MV |
354 | if (!libxfs_bhash_size) |
355 | libxfs_bhash_size = LIBXFS_BHASHSIZE(sbp); | |
ba9ecd40 DC |
356 | libxfs_bcache = cache_init(a->bcache_flags, libxfs_bhash_size, |
357 | &libxfs_bcache_operations); | |
d0572de5 | 358 | use_xfs_buf_lock = a->usebuflock; |
f1b058f9 | 359 | manage_zones(0); |
2bd0ea18 NS |
360 | rval = 1; |
361 | done: | |
362 | if (dpath[0]) | |
363 | unlink(dpath); | |
364 | if (logpath[0]) | |
365 | unlink(logpath); | |
366 | if (rtpath[0]) | |
367 | unlink(rtpath); | |
368 | if (fd >= 0) | |
369 | close(fd); | |
370 | if (!rval && a->ddev) | |
371 | libxfs_device_close(a->ddev); | |
372 | if (!rval && a->logdev) | |
373 | libxfs_device_close(a->logdev); | |
374 | if (!rval && a->rtdev) | |
375 | libxfs_device_close(a->rtdev); | |
376 | return rval; | |
377 | } | |
378 | ||
379 | ||
380 | /* | |
381 | * Initialize/destroy all of the zone allocators we use. | |
382 | */ | |
383 | static void | |
384 | manage_zones(int release) | |
385 | { | |
5e656dbb BN |
386 | extern kmem_zone_t *xfs_buf_zone; |
387 | extern kmem_zone_t *xfs_ili_zone; | |
5e656dbb | 388 | extern kmem_zone_t *xfs_ifork_zone; |
5e656dbb BN |
389 | extern kmem_zone_t *xfs_buf_item_zone; |
390 | extern kmem_zone_t *xfs_da_state_zone; | |
391 | extern kmem_zone_t *xfs_btree_cur_zone; | |
392 | extern kmem_zone_t *xfs_bmap_free_item_zone; | |
56b2de80 | 393 | extern kmem_zone_t *xfs_log_item_desc_zone; |
2bd0ea18 NS |
394 | extern void xfs_dir_startup(); |
395 | ||
396 | if (release) { /* free zone allocation */ | |
5e656dbb BN |
397 | kmem_free(xfs_buf_zone); |
398 | kmem_free(xfs_inode_zone); | |
399 | kmem_free(xfs_ifork_zone); | |
5e656dbb BN |
400 | kmem_free(xfs_buf_item_zone); |
401 | kmem_free(xfs_da_state_zone); | |
402 | kmem_free(xfs_btree_cur_zone); | |
403 | kmem_free(xfs_bmap_free_item_zone); | |
56b2de80 | 404 | kmem_free(xfs_log_item_desc_zone); |
2bd0ea18 NS |
405 | return; |
406 | } | |
407 | /* otherwise initialise zone allocation */ | |
5e656dbb | 408 | xfs_buf_zone = kmem_zone_init(sizeof(xfs_buf_t), "xfs_buffer"); |
b626fb59 | 409 | xfs_inode_zone = kmem_zone_init(sizeof(struct xfs_inode), "xfs_inode"); |
5e656dbb | 410 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); |
5e656dbb | 411 | xfs_ili_zone = kmem_zone_init( |
2bd0ea18 | 412 | sizeof(xfs_inode_log_item_t), "xfs_inode_log_item"); |
5e656dbb | 413 | xfs_buf_item_zone = kmem_zone_init( |
2bd0ea18 | 414 | sizeof(xfs_buf_log_item_t), "xfs_buf_log_item"); |
5e656dbb | 415 | xfs_da_state_zone = kmem_zone_init( |
2bd0ea18 | 416 | sizeof(xfs_da_state_t), "xfs_da_state"); |
5e656dbb | 417 | xfs_btree_cur_zone = kmem_zone_init( |
2bd0ea18 | 418 | sizeof(xfs_btree_cur_t), "xfs_btree_cur"); |
5e656dbb | 419 | xfs_bmap_free_item_zone = kmem_zone_init( |
6f530e9a DW |
420 | sizeof(struct xfs_extent_free_item), |
421 | "xfs_bmap_free_item"); | |
56b2de80 DC |
422 | xfs_log_item_desc_zone = kmem_zone_init( |
423 | sizeof(struct xfs_log_item_desc), "xfs_log_item_desc"); | |
2bd0ea18 NS |
424 | xfs_dir_startup(); |
425 | } | |
426 | ||
b391b7cd NS |
427 | /* |
428 | * Initialize realtime fields in the mount structure. | |
429 | */ | |
430 | static int | |
431 | rtmount_init( | |
39798eb5 NS |
432 | xfs_mount_t *mp, /* file system mount structure */ |
433 | int flags) | |
b391b7cd NS |
434 | { |
435 | xfs_buf_t *bp; /* buffer for last block of subvolume */ | |
436 | xfs_daddr_t d; /* address of last block of subvolume */ | |
437 | xfs_sb_t *sbp; /* filesystem superblock copy in mount */ | |
438 | ||
439 | sbp = &mp->m_sb; | |
440 | if (sbp->sb_rblocks == 0) | |
441 | return 0; | |
75c8b434 | 442 | if (mp->m_rtdev_targp->dev == 0 && !(flags & LIBXFS_MOUNT_DEBUGGER)) { |
9440d84d | 443 | fprintf(stderr, _("%s: filesystem has a realtime subvolume\n"), |
b391b7cd NS |
444 | progname); |
445 | return -1; | |
446 | } | |
447 | mp->m_rsumlevels = sbp->sb_rextslog + 1; | |
448 | mp->m_rsumsize = | |
449 | (uint)sizeof(xfs_suminfo_t) * mp->m_rsumlevels * | |
450 | sbp->sb_rbmblocks; | |
451 | mp->m_rsumsize = roundup(mp->m_rsumsize, sbp->sb_blocksize); | |
452 | mp->m_rbmip = mp->m_rsumip = NULL; | |
39798eb5 NS |
453 | |
454 | /* | |
455 | * Allow debugger to be run without the realtime device present. | |
456 | */ | |
457 | if (flags & LIBXFS_MOUNT_DEBUGGER) | |
458 | return 0; | |
459 | ||
b391b7cd NS |
460 | /* |
461 | * Check that the realtime section is an ok size. | |
462 | */ | |
463 | d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_rblocks); | |
464 | if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_rblocks) { | |
9440d84d NS |
465 | fprintf(stderr, _("%s: realtime init - %llu != %llu\n"), |
466 | progname, (unsigned long long) XFS_BB_TO_FSB(mp, d), | |
b391b7cd NS |
467 | (unsigned long long) mp->m_sb.sb_rblocks); |
468 | return -1; | |
469 | } | |
9440d84d | 470 | bp = libxfs_readbuf(mp->m_rtdev, |
75c8b434 | 471 | d - XFS_FSB_TO_BB(mp, 1), XFS_FSB_TO_BB(mp, 1), 0, NULL); |
b391b7cd | 472 | if (bp == NULL) { |
9440d84d NS |
473 | fprintf(stderr, _("%s: realtime size check failed\n"), |
474 | progname); | |
b391b7cd NS |
475 | return -1; |
476 | } | |
477 | libxfs_putbuf(bp); | |
478 | return 0; | |
479 | } | |
480 | ||
56b2de80 DC |
481 | static int |
482 | libxfs_initialize_perag( | |
483 | xfs_mount_t *mp, | |
484 | xfs_agnumber_t agcount, | |
485 | xfs_agnumber_t *maxagi) | |
486 | { | |
487 | xfs_agnumber_t index, max_metadata; | |
488 | xfs_agnumber_t first_initialised = 0; | |
489 | xfs_perag_t *pag; | |
490 | xfs_agino_t agino; | |
491 | xfs_ino_t ino; | |
492 | xfs_sb_t *sbp = &mp->m_sb; | |
493 | int error = -ENOMEM; | |
494 | ||
495 | /* | |
496 | * Walk the current per-ag tree so we don't try to initialise AGs | |
497 | * that already exist (growfs case). Allocate and insert all the | |
498 | * AGs we don't find ready for initialisation. | |
499 | */ | |
500 | for (index = 0; index < agcount; index++) { | |
501 | pag = xfs_perag_get(mp, index); | |
502 | if (pag) { | |
503 | xfs_perag_put(pag); | |
504 | continue; | |
505 | } | |
506 | if (!first_initialised) | |
507 | first_initialised = index; | |
508 | ||
509 | pag = kmem_zalloc(sizeof(*pag), KM_MAYFAIL); | |
510 | if (!pag) | |
511 | goto out_unwind; | |
512 | pag->pag_agno = index; | |
513 | pag->pag_mount = mp; | |
514 | ||
515 | if (radix_tree_insert(&mp->m_perag_tree, index, pag)) { | |
516 | error = -EEXIST; | |
517 | goto out_unwind; | |
518 | } | |
519 | } | |
520 | ||
521 | /* | |
522 | * If we mount with the inode64 option, or no inode overflows | |
523 | * the legacy 32-bit address space clear the inode32 option. | |
524 | */ | |
525 | agino = XFS_OFFBNO_TO_AGINO(mp, sbp->sb_agblocks - 1, 0); | |
526 | ino = XFS_AGINO_TO_INO(mp, agcount - 1, agino); | |
527 | ||
528 | if ((mp->m_flags & XFS_MOUNT_SMALL_INUMS) && ino > XFS_MAXINUMBER_32) | |
529 | mp->m_flags |= XFS_MOUNT_32BITINODES; | |
530 | else | |
531 | mp->m_flags &= ~XFS_MOUNT_32BITINODES; | |
532 | ||
533 | if (mp->m_flags & XFS_MOUNT_32BITINODES) { | |
534 | /* | |
535 | * Calculate how much should be reserved for inodes to meet | |
536 | * the max inode percentage. | |
537 | */ | |
538 | if (mp->m_maxicount) { | |
539 | __uint64_t icount; | |
540 | ||
541 | icount = sbp->sb_dblocks * sbp->sb_imax_pct; | |
542 | do_div(icount, 100); | |
543 | icount += sbp->sb_agblocks - 1; | |
544 | do_div(icount, sbp->sb_agblocks); | |
545 | max_metadata = icount; | |
546 | } else { | |
547 | max_metadata = agcount; | |
548 | } | |
549 | ||
550 | for (index = 0; index < agcount; index++) { | |
551 | ino = XFS_AGINO_TO_INO(mp, index, agino); | |
552 | if (ino > XFS_MAXINUMBER_32) { | |
553 | index++; | |
554 | break; | |
555 | } | |
556 | ||
557 | pag = xfs_perag_get(mp, index); | |
558 | pag->pagi_inodeok = 1; | |
559 | if (index < max_metadata) | |
560 | pag->pagf_metadata = 1; | |
561 | xfs_perag_put(pag); | |
562 | } | |
563 | } else { | |
564 | for (index = 0; index < agcount; index++) { | |
565 | pag = xfs_perag_get(mp, index); | |
566 | pag->pagi_inodeok = 1; | |
567 | xfs_perag_put(pag); | |
568 | } | |
569 | } | |
570 | ||
571 | if (maxagi) | |
572 | *maxagi = index; | |
ef5340cd DW |
573 | |
574 | mp->m_ag_prealloc_blocks = xfs_prealloc_blocks(mp); | |
56b2de80 DC |
575 | return 0; |
576 | ||
577 | out_unwind: | |
578 | kmem_free(pag); | |
579 | for (; index > first_initialised; index--) { | |
580 | pag = radix_tree_delete(&mp->m_perag_tree, index); | |
581 | kmem_free(pag); | |
582 | } | |
583 | return error; | |
584 | } | |
585 | ||
75c8b434 DC |
586 | static struct xfs_buftarg * |
587 | libxfs_buftarg_alloc( | |
588 | struct xfs_mount *mp, | |
589 | dev_t dev) | |
590 | { | |
591 | struct xfs_buftarg *btp; | |
592 | ||
593 | btp = malloc(sizeof(*btp)); | |
594 | if (!btp) { | |
595 | fprintf(stderr, _("%s: buftarg init failed\n"), | |
596 | progname); | |
597 | exit(1); | |
598 | } | |
599 | btp->bt_mount = mp; | |
600 | btp->dev = dev; | |
601 | return btp; | |
602 | } | |
603 | ||
604 | void | |
605 | libxfs_buftarg_init( | |
606 | struct xfs_mount *mp, | |
607 | dev_t dev, | |
608 | dev_t logdev, | |
609 | dev_t rtdev) | |
610 | { | |
611 | if (mp->m_ddev_targp) { | |
612 | /* should already have all buftargs initialised */ | |
613 | if (mp->m_ddev_targp->dev != dev || | |
614 | mp->m_ddev_targp->bt_mount != mp) { | |
615 | fprintf(stderr, | |
616 | _("%s: bad buftarg reinit, ddev\n"), | |
617 | progname); | |
618 | exit(1); | |
619 | } | |
620 | if (!logdev || logdev == dev) { | |
621 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
622 | fprintf(stderr, | |
623 | _("%s: bad buftarg reinit, ldev mismatch\n"), | |
624 | progname); | |
625 | exit(1); | |
626 | } | |
627 | } else if (mp->m_logdev_targp->dev != logdev || | |
628 | mp->m_logdev_targp->bt_mount != mp) { | |
629 | fprintf(stderr, | |
630 | _("%s: bad buftarg reinit, logdev\n"), | |
631 | progname); | |
632 | exit(1); | |
633 | } | |
634 | if (rtdev && (mp->m_rtdev_targp->dev != rtdev || | |
635 | mp->m_rtdev_targp->bt_mount != mp)) { | |
636 | fprintf(stderr, | |
637 | _("%s: bad buftarg reinit, rtdev\n"), | |
638 | progname); | |
639 | exit(1); | |
640 | } | |
641 | return; | |
642 | } | |
643 | ||
644 | mp->m_ddev_targp = libxfs_buftarg_alloc(mp, dev); | |
645 | if (!logdev || logdev == dev) | |
646 | mp->m_logdev_targp = mp->m_ddev_targp; | |
647 | else | |
648 | mp->m_logdev_targp = libxfs_buftarg_alloc(mp, logdev); | |
649 | mp->m_rtdev_targp = libxfs_buftarg_alloc(mp, rtdev); | |
650 | } | |
651 | ||
2bd0ea18 NS |
652 | /* |
653 | * Mount structure initialization, provides a filled-in xfs_mount_t | |
654 | * such that the numerous XFS_* macros can be used. If dev is zero, | |
655 | * no IO will be performed (no size checks, read root inodes). | |
656 | */ | |
657 | xfs_mount_t * | |
658 | libxfs_mount( | |
659 | xfs_mount_t *mp, | |
660 | xfs_sb_t *sb, | |
661 | dev_t dev, | |
662 | dev_t logdev, | |
663 | dev_t rtdev, | |
4ca431fc | 664 | int flags) |
2bd0ea18 NS |
665 | { |
666 | xfs_daddr_t d; | |
667 | xfs_buf_t *bp; | |
668 | xfs_sb_t *sbp; | |
2bd0ea18 NS |
669 | int error; |
670 | ||
75c8b434 DC |
671 | libxfs_buftarg_init(mp, dev, logdev, rtdev); |
672 | ||
6239071d | 673 | mp->m_flags = (LIBXFS_MOUNT_32BITINODES|LIBXFS_MOUNT_32BITINOOPT); |
2bd0ea18 | 674 | mp->m_sb = *sb; |
56b2de80 | 675 | INIT_RADIX_TREE(&mp->m_perag_tree, GFP_KERNEL); |
2bd0ea18 | 676 | sbp = &(mp->m_sb); |
2bd0ea18 | 677 | |
4896e6c8 | 678 | xfs_sb_mount_common(mp, sb); |
2bd0ea18 | 679 | |
5e656dbb BN |
680 | xfs_alloc_compute_maxlevels(mp); |
681 | xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK); | |
682 | xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK); | |
683 | xfs_ialloc_compute_maxlevels(mp); | |
2bd0ea18 NS |
684 | |
685 | if (sbp->sb_imax_pct) { | |
686 | /* Make sure the maximum inode count is a multiple of the | |
687 | * units we allocate inodes in. | |
688 | */ | |
689 | mp->m_maxicount = (sbp->sb_dblocks * sbp->sb_imax_pct) / 100; | |
690 | mp->m_maxicount = ((mp->m_maxicount / mp->m_ialloc_blks) * | |
691 | mp->m_ialloc_blks) << sbp->sb_inopblog; | |
692 | } else | |
693 | mp->m_maxicount = 0; | |
694 | ||
695 | mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE; | |
696 | ||
949c0f10 NS |
697 | /* |
698 | * Set whether we're using stripe alignment. | |
699 | */ | |
5e656dbb | 700 | if (xfs_sb_version_hasdalign(&mp->m_sb)) { |
949c0f10 NS |
701 | mp->m_dalign = sbp->sb_unit; |
702 | mp->m_swidth = sbp->sb_width; | |
703 | } | |
704 | ||
2bd0ea18 NS |
705 | /* |
706 | * Set whether we're using inode alignment. | |
707 | */ | |
5e656dbb | 708 | if (xfs_sb_version_hasalign(&mp->m_sb) && |
2bd0ea18 NS |
709 | mp->m_sb.sb_inoalignmt >= |
710 | XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size)) | |
711 | mp->m_inoalign_mask = mp->m_sb.sb_inoalignmt - 1; | |
712 | else | |
713 | mp->m_inoalign_mask = 0; | |
714 | /* | |
715 | * If we are using stripe alignment, check whether | |
716 | * the stripe unit is a multiple of the inode alignment | |
717 | */ | |
b3563c19 | 718 | if (mp->m_dalign && mp->m_inoalign_mask && |
5e656dbb | 719 | !(mp->m_dalign & mp->m_inoalign_mask)) |
2bd0ea18 NS |
720 | mp->m_sinoalign = mp->m_dalign; |
721 | else | |
722 | mp->m_sinoalign = 0; | |
723 | ||
724 | /* | |
725 | * Check that the data (and log if separate) are an ok size. | |
726 | */ | |
9440d84d | 727 | d = (xfs_daddr_t) XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks); |
2bd0ea18 | 728 | if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) { |
9440d84d | 729 | fprintf(stderr, _("%s: size check failed\n"), progname); |
4ca431fc NS |
730 | if (!(flags & LIBXFS_MOUNT_DEBUGGER)) |
731 | return NULL; | |
2bd0ea18 NS |
732 | } |
733 | ||
ff105f75 DC |
734 | /* |
735 | * We automatically convert v1 inodes to v2 inodes now, so if | |
736 | * the NLINK bit is not set we can't operate on the filesystem. | |
737 | */ | |
738 | if (!(sbp->sb_versionnum & XFS_SB_VERSION_NLINKBIT)) { | |
739 | ||
740 | fprintf(stderr, _( | |
741 | "%s: V1 inodes unsupported. Please try an older xfsprogs.\n"), | |
742 | progname); | |
743 | exit(1); | |
744 | } | |
745 | ||
746 | /* Check for supported directory formats */ | |
747 | if (!(sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT)) { | |
9a048535 DC |
748 | |
749 | fprintf(stderr, _( | |
750 | "%s: V1 directories unsupported. Please try an older xfsprogs.\n"), | |
751 | progname); | |
752 | exit(1); | |
5e656dbb | 753 | } |
2bd0ea18 | 754 | |
ff105f75 DC |
755 | /* check for unsupported other features */ |
756 | if (!xfs_sb_good_version(sbp)) { | |
757 | fprintf(stderr, _( | |
758 | "%s: Unsupported features detected. Please try a newer xfsprogs.\n"), | |
759 | progname); | |
760 | exit(1); | |
761 | } | |
762 | ||
763 | xfs_da_mount(mp); | |
764 | ||
5e656dbb BN |
765 | if (xfs_sb_version_hasattr2(&mp->m_sb)) |
766 | mp->m_flags |= LIBXFS_MOUNT_ATTR2; | |
57c9fccb | 767 | |
2bd0ea18 | 768 | /* Initialize the precomputed transaction reservations values */ |
5e656dbb | 769 | xfs_trans_init(mp); |
2bd0ea18 NS |
770 | |
771 | if (dev == 0) /* maxtrres, we have no device so leave now */ | |
772 | return mp; | |
773 | ||
9440d84d | 774 | bp = libxfs_readbuf(mp->m_dev, |
4ca431fc | 775 | d - XFS_FSS_TO_BB(mp, 1), XFS_FSS_TO_BB(mp, 1), |
75c8b434 | 776 | !(flags & LIBXFS_MOUNT_DEBUGGER), NULL); |
9440d84d NS |
777 | if (!bp) { |
778 | fprintf(stderr, _("%s: data size check failed\n"), progname); | |
4ca431fc NS |
779 | if (!(flags & LIBXFS_MOUNT_DEBUGGER)) |
780 | return NULL; | |
32244196 BN |
781 | } else |
782 | libxfs_putbuf(bp); | |
2bd0ea18 | 783 | |
75c8b434 DC |
784 | if (mp->m_logdev_targp->dev && |
785 | mp->m_logdev_targp->dev != mp->m_ddev_targp->dev) { | |
9440d84d | 786 | d = (xfs_daddr_t) XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); |
2bd0ea18 | 787 | if ( (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) || |
75c8b434 | 788 | (!(bp = libxfs_readbuf(mp->m_logdev_targp, |
9440d84d | 789 | d - XFS_FSB_TO_BB(mp, 1), |
4ca431fc | 790 | XFS_FSB_TO_BB(mp, 1), |
75c8b434 | 791 | !(flags & LIBXFS_MOUNT_DEBUGGER), NULL))) ) { |
9440d84d | 792 | fprintf(stderr, _("%s: log size checks failed\n"), |
2bd0ea18 | 793 | progname); |
4ca431fc NS |
794 | if (!(flags & LIBXFS_MOUNT_DEBUGGER)) |
795 | return NULL; | |
2bd0ea18 | 796 | } |
32244196 BN |
797 | if (bp) |
798 | libxfs_putbuf(bp); | |
2bd0ea18 NS |
799 | } |
800 | ||
801 | /* Initialize realtime fields in the mount structure */ | |
39798eb5 | 802 | if (rtmount_init(mp, flags)) { |
9440d84d NS |
803 | fprintf(stderr, _("%s: realtime device init failed\n"), |
804 | progname); | |
4ca431fc | 805 | return NULL; |
2bd0ea18 NS |
806 | } |
807 | ||
56b2de80 DC |
808 | error = libxfs_initialize_perag(mp, sbp->sb_agcount, &mp->m_maxagi); |
809 | if (error) { | |
810 | fprintf(stderr, _("%s: perag init failed\n"), | |
811 | progname); | |
2bd0ea18 NS |
812 | exit(1); |
813 | } | |
814 | ||
2bd0ea18 NS |
815 | return mp; |
816 | } | |
817 | ||
f1b058f9 NS |
818 | void |
819 | libxfs_rtmount_destroy(xfs_mount_t *mp) | |
820 | { | |
821 | if (mp->m_rsumip) | |
dd2c21d2 | 822 | IRELE(mp->m_rsumip); |
f1b058f9 | 823 | if (mp->m_rbmip) |
dd2c21d2 | 824 | IRELE(mp->m_rbmip); |
f1b058f9 NS |
825 | mp->m_rsumip = mp->m_rbmip = NULL; |
826 | } | |
827 | ||
2bd0ea18 | 828 | /* |
9440d84d | 829 | * Release any resource obtained during a mount. |
2bd0ea18 NS |
830 | */ |
831 | void | |
832 | libxfs_umount(xfs_mount_t *mp) | |
833 | { | |
56b2de80 DC |
834 | struct xfs_perag *pag; |
835 | int agno; | |
836 | ||
f1b058f9 | 837 | libxfs_rtmount_destroy(mp); |
f1b058f9 NS |
838 | libxfs_bcache_purge(); |
839 | ||
56b2de80 DC |
840 | for (agno = 0; agno < mp->m_maxagi; agno++) { |
841 | pag = radix_tree_delete(&mp->m_perag_tree, agno); | |
842 | kmem_free(pag); | |
fceb0d99 | 843 | } |
4334e2e8 ES |
844 | |
845 | kmem_free(mp->m_attr_geo); | |
846 | kmem_free(mp->m_dir_geo); | |
847 | ||
848 | kmem_free(mp->m_rtdev_targp); | |
849 | if (mp->m_logdev_targp != mp->m_ddev_targp) | |
850 | kmem_free(mp->m_logdev_targp); | |
851 | kmem_free(mp->m_ddev_targp); | |
f8149110 | 852 | |
2bd0ea18 | 853 | } |
f1b058f9 NS |
854 | |
855 | /* | |
856 | * Release any global resources used by libxfs. | |
857 | */ | |
858 | void | |
859 | libxfs_destroy(void) | |
860 | { | |
861 | manage_zones(1); | |
f1b058f9 NS |
862 | cache_destroy(libxfs_bcache); |
863 | } | |
9f38f08d | 864 | |
b74a1f6a NS |
865 | int |
866 | libxfs_device_alignment(void) | |
867 | { | |
868 | return platform_align_blockdev(); | |
869 | } | |
870 | ||
9f38f08d | 871 | void |
b6281496 | 872 | libxfs_report(FILE *fp) |
9f38f08d | 873 | { |
cb5b3ef4 MV |
874 | time_t t; |
875 | char *c; | |
876 | ||
b6281496 | 877 | cache_report(fp, "libxfs_bcache", libxfs_bcache); |
cb5b3ef4 MV |
878 | |
879 | t = time(NULL); | |
880 | c = asctime(localtime(&t)); | |
881 | fprintf(fp, "%s", c); | |
882 | } | |
3b6ac903 MV |
883 | |
884 | int | |
885 | libxfs_nproc(void) | |
886 | { | |
887 | return platform_nproc(); | |
888 | } | |
2556c98b BN |
889 | |
890 | unsigned long | |
891 | libxfs_physmem(void) | |
892 | { | |
893 | return platform_physmem(); | |
e08f5594 | 894 | } |