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1da177e4 | 1 | /* |
a805bad5 | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
7b718769 | 3 | * All Rights Reserved. |
1da177e4 | 4 | * |
7b718769 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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 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. | |
1da177e4 | 13 | * |
7b718769 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 | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a844f451 | 19 | #include "xfs_bit.h" |
1da177e4 LT |
20 | #include "xfs_log.h" |
21 | #include "xfs_clnt.h" | |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
a844f451 | 25 | #include "xfs_ag.h" |
1da177e4 LT |
26 | #include "xfs_dir2.h" |
27 | #include "xfs_alloc.h" | |
28 | #include "xfs_dmapi.h" | |
29 | #include "xfs_quota.h" | |
30 | #include "xfs_mount.h" | |
1da177e4 | 31 | #include "xfs_bmap_btree.h" |
a844f451 | 32 | #include "xfs_alloc_btree.h" |
1da177e4 | 33 | #include "xfs_ialloc_btree.h" |
1da177e4 | 34 | #include "xfs_dir2_sf.h" |
a844f451 | 35 | #include "xfs_attr_sf.h" |
1da177e4 LT |
36 | #include "xfs_dinode.h" |
37 | #include "xfs_inode.h" | |
a844f451 | 38 | #include "xfs_btree.h" |
8c4ed633 | 39 | #include "xfs_btree_trace.h" |
a844f451 | 40 | #include "xfs_ialloc.h" |
1da177e4 | 41 | #include "xfs_bmap.h" |
1da177e4 LT |
42 | #include "xfs_rtalloc.h" |
43 | #include "xfs_error.h" | |
44 | #include "xfs_itable.h" | |
9909c4aa | 45 | #include "xfs_fsops.h" |
1da177e4 LT |
46 | #include "xfs_rw.h" |
47 | #include "xfs_acl.h" | |
1da177e4 LT |
48 | #include "xfs_attr.h" |
49 | #include "xfs_buf_item.h" | |
50 | #include "xfs_utils.h" | |
739bfb2a | 51 | #include "xfs_vnodeops.h" |
745f6919 | 52 | #include "xfs_vfsops.h" |
1da177e4 | 53 | #include "xfs_version.h" |
a67d7c5f | 54 | #include "xfs_log_priv.h" |
249a8c11 | 55 | #include "xfs_trans_priv.h" |
48b62a1a | 56 | #include "xfs_filestream.h" |
9f8868ff CH |
57 | #include "xfs_da_btree.h" |
58 | #include "xfs_dir2_trace.h" | |
59 | #include "xfs_extfree_item.h" | |
60 | #include "xfs_mru_cache.h" | |
61 | #include "xfs_inode_item.h" | |
1da177e4 LT |
62 | |
63 | #include <linux/namei.h> | |
64 | #include <linux/init.h> | |
65 | #include <linux/mount.h> | |
0829c360 | 66 | #include <linux/mempool.h> |
1da177e4 | 67 | #include <linux/writeback.h> |
4df08c52 | 68 | #include <linux/kthread.h> |
7dfb7103 | 69 | #include <linux/freezer.h> |
62a877e3 | 70 | #include <linux/parser.h> |
1da177e4 | 71 | |
7989cb8e DC |
72 | static struct quotactl_ops xfs_quotactl_operations; |
73 | static struct super_operations xfs_super_operations; | |
74 | static kmem_zone_t *xfs_vnode_zone; | |
75 | static kmem_zone_t *xfs_ioend_zone; | |
0829c360 | 76 | mempool_t *xfs_ioend_pool; |
1da177e4 LT |
77 | |
78 | STATIC struct xfs_mount_args * | |
79 | xfs_args_allocate( | |
764d1f89 NS |
80 | struct super_block *sb, |
81 | int silent) | |
1da177e4 LT |
82 | { |
83 | struct xfs_mount_args *args; | |
84 | ||
bdd907ba CH |
85 | args = kzalloc(sizeof(struct xfs_mount_args), GFP_KERNEL); |
86 | if (!args) | |
87 | return NULL; | |
88 | ||
1da177e4 LT |
89 | args->logbufs = args->logbufsize = -1; |
90 | strncpy(args->fsname, sb->s_id, MAXNAMELEN); | |
91 | ||
92 | /* Copy the already-parsed mount(2) flags we're interested in */ | |
1da177e4 LT |
93 | if (sb->s_flags & MS_DIRSYNC) |
94 | args->flags |= XFSMNT_DIRSYNC; | |
95 | if (sb->s_flags & MS_SYNCHRONOUS) | |
96 | args->flags |= XFSMNT_WSYNC; | |
764d1f89 NS |
97 | if (silent) |
98 | args->flags |= XFSMNT_QUIET; | |
1da177e4 LT |
99 | args->flags |= XFSMNT_32BITINODES; |
100 | ||
101 | return args; | |
102 | } | |
103 | ||
a67d7c5f DC |
104 | #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ |
105 | #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ | |
106 | #define MNTOPT_LOGDEV "logdev" /* log device */ | |
107 | #define MNTOPT_RTDEV "rtdev" /* realtime I/O device */ | |
108 | #define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */ | |
109 | #define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */ | |
110 | #define MNTOPT_INO64 "ino64" /* force inodes into 64-bit range */ | |
111 | #define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */ | |
112 | #define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */ | |
113 | #define MNTOPT_SUNIT "sunit" /* data volume stripe unit */ | |
114 | #define MNTOPT_SWIDTH "swidth" /* data volume stripe width */ | |
115 | #define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */ | |
116 | #define MNTOPT_MTPT "mtpt" /* filesystem mount point */ | |
117 | #define MNTOPT_GRPID "grpid" /* group-ID from parent directory */ | |
118 | #define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */ | |
119 | #define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */ | |
120 | #define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */ | |
121 | #define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */ | |
122 | #define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */ | |
123 | #define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and | |
124 | * unwritten extent conversion */ | |
125 | #define MNTOPT_NOBARRIER "nobarrier" /* .. disable */ | |
126 | #define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */ | |
127 | #define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */ | |
128 | #define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */ | |
129 | #define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */ | |
130 | #define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */ | |
131 | #define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes | |
132 | * in stat(). */ | |
133 | #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ | |
134 | #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ | |
135 | #define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */ | |
136 | #define MNTOPT_QUOTA "quota" /* disk quotas (user) */ | |
137 | #define MNTOPT_NOQUOTA "noquota" /* no quotas */ | |
138 | #define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */ | |
139 | #define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */ | |
140 | #define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */ | |
141 | #define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */ | |
142 | #define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */ | |
143 | #define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */ | |
144 | #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */ | |
145 | #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */ | |
146 | #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */ | |
147 | #define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */ | |
148 | #define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */ | |
149 | #define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */ | |
150 | #define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */ | |
151 | ||
62a877e3 CH |
152 | /* |
153 | * Table driven mount option parser. | |
154 | * | |
155 | * Currently only used for remount, but it will be used for mount | |
156 | * in the future, too. | |
157 | */ | |
158 | enum { | |
159 | Opt_barrier, Opt_nobarrier, Opt_err | |
160 | }; | |
161 | ||
a447c093 | 162 | static const match_table_t tokens = { |
62a877e3 CH |
163 | {Opt_barrier, "barrier"}, |
164 | {Opt_nobarrier, "nobarrier"}, | |
165 | {Opt_err, NULL} | |
166 | }; | |
167 | ||
168 | ||
a67d7c5f DC |
169 | STATIC unsigned long |
170 | suffix_strtoul(char *s, char **endp, unsigned int base) | |
171 | { | |
172 | int last, shift_left_factor = 0; | |
173 | char *value = s; | |
174 | ||
175 | last = strlen(value) - 1; | |
176 | if (value[last] == 'K' || value[last] == 'k') { | |
177 | shift_left_factor = 10; | |
178 | value[last] = '\0'; | |
179 | } | |
180 | if (value[last] == 'M' || value[last] == 'm') { | |
181 | shift_left_factor = 20; | |
182 | value[last] = '\0'; | |
183 | } | |
184 | if (value[last] == 'G' || value[last] == 'g') { | |
185 | shift_left_factor = 30; | |
186 | value[last] = '\0'; | |
187 | } | |
188 | ||
189 | return simple_strtoul((const char *)s, endp, base) << shift_left_factor; | |
190 | } | |
191 | ||
192 | STATIC int | |
193 | xfs_parseargs( | |
194 | struct xfs_mount *mp, | |
195 | char *options, | |
196 | struct xfs_mount_args *args, | |
197 | int update) | |
198 | { | |
199 | char *this_char, *value, *eov; | |
200 | int dsunit, dswidth, vol_dsunit, vol_dswidth; | |
201 | int iosize; | |
1bd960ee | 202 | int dmapi_implies_ikeep = 1; |
a67d7c5f DC |
203 | |
204 | args->flags |= XFSMNT_BARRIER; | |
205 | args->flags2 |= XFSMNT2_COMPAT_IOSIZE; | |
206 | ||
207 | if (!options) | |
208 | goto done; | |
209 | ||
210 | iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0; | |
211 | ||
212 | while ((this_char = strsep(&options, ",")) != NULL) { | |
213 | if (!*this_char) | |
214 | continue; | |
215 | if ((value = strchr(this_char, '=')) != NULL) | |
216 | *value++ = 0; | |
217 | ||
218 | if (!strcmp(this_char, MNTOPT_LOGBUFS)) { | |
219 | if (!value || !*value) { | |
220 | cmn_err(CE_WARN, | |
221 | "XFS: %s option requires an argument", | |
222 | this_char); | |
223 | return EINVAL; | |
224 | } | |
225 | args->logbufs = simple_strtoul(value, &eov, 10); | |
226 | } else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) { | |
227 | if (!value || !*value) { | |
228 | cmn_err(CE_WARN, | |
229 | "XFS: %s option requires an argument", | |
230 | this_char); | |
231 | return EINVAL; | |
232 | } | |
233 | args->logbufsize = suffix_strtoul(value, &eov, 10); | |
234 | } else if (!strcmp(this_char, MNTOPT_LOGDEV)) { | |
235 | if (!value || !*value) { | |
236 | cmn_err(CE_WARN, | |
237 | "XFS: %s option requires an argument", | |
238 | this_char); | |
239 | return EINVAL; | |
240 | } | |
241 | strncpy(args->logname, value, MAXNAMELEN); | |
242 | } else if (!strcmp(this_char, MNTOPT_MTPT)) { | |
243 | if (!value || !*value) { | |
244 | cmn_err(CE_WARN, | |
245 | "XFS: %s option requires an argument", | |
246 | this_char); | |
247 | return EINVAL; | |
248 | } | |
249 | strncpy(args->mtpt, value, MAXNAMELEN); | |
250 | } else if (!strcmp(this_char, MNTOPT_RTDEV)) { | |
251 | if (!value || !*value) { | |
252 | cmn_err(CE_WARN, | |
253 | "XFS: %s option requires an argument", | |
254 | this_char); | |
255 | return EINVAL; | |
256 | } | |
257 | strncpy(args->rtname, value, MAXNAMELEN); | |
258 | } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) { | |
259 | if (!value || !*value) { | |
260 | cmn_err(CE_WARN, | |
261 | "XFS: %s option requires an argument", | |
262 | this_char); | |
263 | return EINVAL; | |
264 | } | |
265 | iosize = simple_strtoul(value, &eov, 10); | |
266 | args->flags |= XFSMNT_IOSIZE; | |
267 | args->iosizelog = (uint8_t) iosize; | |
268 | } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) { | |
269 | if (!value || !*value) { | |
270 | cmn_err(CE_WARN, | |
271 | "XFS: %s option requires an argument", | |
272 | this_char); | |
273 | return EINVAL; | |
274 | } | |
275 | iosize = suffix_strtoul(value, &eov, 10); | |
276 | args->flags |= XFSMNT_IOSIZE; | |
277 | args->iosizelog = ffs(iosize) - 1; | |
278 | } else if (!strcmp(this_char, MNTOPT_GRPID) || | |
279 | !strcmp(this_char, MNTOPT_BSDGROUPS)) { | |
280 | mp->m_flags |= XFS_MOUNT_GRPID; | |
281 | } else if (!strcmp(this_char, MNTOPT_NOGRPID) || | |
282 | !strcmp(this_char, MNTOPT_SYSVGROUPS)) { | |
283 | mp->m_flags &= ~XFS_MOUNT_GRPID; | |
284 | } else if (!strcmp(this_char, MNTOPT_WSYNC)) { | |
285 | args->flags |= XFSMNT_WSYNC; | |
286 | } else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) { | |
287 | args->flags |= XFSMNT_OSYNCISOSYNC; | |
288 | } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) { | |
289 | args->flags |= XFSMNT_NORECOVERY; | |
290 | } else if (!strcmp(this_char, MNTOPT_INO64)) { | |
291 | args->flags |= XFSMNT_INO64; | |
292 | #if !XFS_BIG_INUMS | |
293 | cmn_err(CE_WARN, | |
294 | "XFS: %s option not allowed on this system", | |
295 | this_char); | |
296 | return EINVAL; | |
297 | #endif | |
298 | } else if (!strcmp(this_char, MNTOPT_NOALIGN)) { | |
299 | args->flags |= XFSMNT_NOALIGN; | |
300 | } else if (!strcmp(this_char, MNTOPT_SWALLOC)) { | |
301 | args->flags |= XFSMNT_SWALLOC; | |
302 | } else if (!strcmp(this_char, MNTOPT_SUNIT)) { | |
303 | if (!value || !*value) { | |
304 | cmn_err(CE_WARN, | |
305 | "XFS: %s option requires an argument", | |
306 | this_char); | |
307 | return EINVAL; | |
308 | } | |
309 | dsunit = simple_strtoul(value, &eov, 10); | |
310 | } else if (!strcmp(this_char, MNTOPT_SWIDTH)) { | |
311 | if (!value || !*value) { | |
312 | cmn_err(CE_WARN, | |
313 | "XFS: %s option requires an argument", | |
314 | this_char); | |
315 | return EINVAL; | |
316 | } | |
317 | dswidth = simple_strtoul(value, &eov, 10); | |
318 | } else if (!strcmp(this_char, MNTOPT_64BITINODE)) { | |
319 | args->flags &= ~XFSMNT_32BITINODES; | |
320 | #if !XFS_BIG_INUMS | |
321 | cmn_err(CE_WARN, | |
322 | "XFS: %s option not allowed on this system", | |
323 | this_char); | |
324 | return EINVAL; | |
325 | #endif | |
326 | } else if (!strcmp(this_char, MNTOPT_NOUUID)) { | |
327 | args->flags |= XFSMNT_NOUUID; | |
328 | } else if (!strcmp(this_char, MNTOPT_BARRIER)) { | |
329 | args->flags |= XFSMNT_BARRIER; | |
330 | } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { | |
331 | args->flags &= ~XFSMNT_BARRIER; | |
332 | } else if (!strcmp(this_char, MNTOPT_IKEEP)) { | |
1bd960ee | 333 | args->flags |= XFSMNT_IKEEP; |
a67d7c5f | 334 | } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { |
1bd960ee JJS |
335 | dmapi_implies_ikeep = 0; |
336 | args->flags &= ~XFSMNT_IKEEP; | |
a67d7c5f DC |
337 | } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { |
338 | args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE; | |
339 | } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { | |
340 | args->flags2 |= XFSMNT2_COMPAT_IOSIZE; | |
341 | } else if (!strcmp(this_char, MNTOPT_ATTR2)) { | |
342 | args->flags |= XFSMNT_ATTR2; | |
343 | } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { | |
344 | args->flags &= ~XFSMNT_ATTR2; | |
7c12f296 | 345 | args->flags |= XFSMNT_NOATTR2; |
a67d7c5f DC |
346 | } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) { |
347 | args->flags2 |= XFSMNT2_FILESTREAMS; | |
348 | } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) { | |
349 | args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA); | |
350 | args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA); | |
351 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || | |
352 | !strcmp(this_char, MNTOPT_UQUOTA) || | |
353 | !strcmp(this_char, MNTOPT_USRQUOTA)) { | |
354 | args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF; | |
355 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || | |
356 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { | |
357 | args->flags |= XFSMNT_UQUOTA; | |
358 | args->flags &= ~XFSMNT_UQUOTAENF; | |
359 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || | |
360 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { | |
361 | args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF; | |
362 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { | |
363 | args->flags |= XFSMNT_PQUOTA; | |
364 | args->flags &= ~XFSMNT_PQUOTAENF; | |
365 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || | |
366 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { | |
367 | args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF; | |
368 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { | |
369 | args->flags |= XFSMNT_GQUOTA; | |
370 | args->flags &= ~XFSMNT_GQUOTAENF; | |
371 | } else if (!strcmp(this_char, MNTOPT_DMAPI)) { | |
372 | args->flags |= XFSMNT_DMAPI; | |
373 | } else if (!strcmp(this_char, MNTOPT_XDSM)) { | |
374 | args->flags |= XFSMNT_DMAPI; | |
375 | } else if (!strcmp(this_char, MNTOPT_DMI)) { | |
376 | args->flags |= XFSMNT_DMAPI; | |
377 | } else if (!strcmp(this_char, "ihashsize")) { | |
378 | cmn_err(CE_WARN, | |
379 | "XFS: ihashsize no longer used, option is deprecated."); | |
380 | } else if (!strcmp(this_char, "osyncisdsync")) { | |
381 | /* no-op, this is now the default */ | |
382 | cmn_err(CE_WARN, | |
383 | "XFS: osyncisdsync is now the default, option is deprecated."); | |
384 | } else if (!strcmp(this_char, "irixsgid")) { | |
385 | cmn_err(CE_WARN, | |
386 | "XFS: irixsgid is now a sysctl(2) variable, option is deprecated."); | |
387 | } else { | |
388 | cmn_err(CE_WARN, | |
389 | "XFS: unknown mount option [%s].", this_char); | |
390 | return EINVAL; | |
391 | } | |
392 | } | |
393 | ||
394 | if (args->flags & XFSMNT_NORECOVERY) { | |
395 | if ((mp->m_flags & XFS_MOUNT_RDONLY) == 0) { | |
396 | cmn_err(CE_WARN, | |
397 | "XFS: no-recovery mounts must be read-only."); | |
398 | return EINVAL; | |
399 | } | |
400 | } | |
401 | ||
402 | if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) { | |
403 | cmn_err(CE_WARN, | |
404 | "XFS: sunit and swidth options incompatible with the noalign option"); | |
405 | return EINVAL; | |
406 | } | |
407 | ||
408 | if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) { | |
409 | cmn_err(CE_WARN, | |
410 | "XFS: cannot mount with both project and group quota"); | |
411 | return EINVAL; | |
412 | } | |
413 | ||
414 | if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') { | |
415 | printk("XFS: %s option needs the mount point option as well\n", | |
416 | MNTOPT_DMAPI); | |
417 | return EINVAL; | |
418 | } | |
419 | ||
420 | if ((dsunit && !dswidth) || (!dsunit && dswidth)) { | |
421 | cmn_err(CE_WARN, | |
422 | "XFS: sunit and swidth must be specified together"); | |
423 | return EINVAL; | |
424 | } | |
425 | ||
426 | if (dsunit && (dswidth % dsunit != 0)) { | |
427 | cmn_err(CE_WARN, | |
428 | "XFS: stripe width (%d) must be a multiple of the stripe unit (%d)", | |
429 | dswidth, dsunit); | |
430 | return EINVAL; | |
431 | } | |
432 | ||
433 | /* | |
434 | * Applications using DMI filesystems often expect the | |
435 | * inode generation number to be monotonically increasing. | |
436 | * If we delete inode chunks we break this assumption, so | |
437 | * keep unused inode chunks on disk for DMI filesystems | |
438 | * until we come up with a better solution. | |
439 | * Note that if "ikeep" or "noikeep" mount options are | |
440 | * supplied, then they are honored. | |
441 | */ | |
1bd960ee JJS |
442 | if ((args->flags & XFSMNT_DMAPI) && dmapi_implies_ikeep) |
443 | args->flags |= XFSMNT_IKEEP; | |
a67d7c5f DC |
444 | |
445 | if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | |
446 | if (dsunit) { | |
447 | args->sunit = dsunit; | |
448 | args->flags |= XFSMNT_RETERR; | |
449 | } else { | |
450 | args->sunit = vol_dsunit; | |
451 | } | |
452 | dswidth ? (args->swidth = dswidth) : | |
453 | (args->swidth = vol_dswidth); | |
454 | } else { | |
455 | args->sunit = args->swidth = 0; | |
456 | } | |
457 | ||
458 | done: | |
459 | if (args->flags & XFSMNT_32BITINODES) | |
460 | mp->m_flags |= XFS_MOUNT_SMALL_INUMS; | |
461 | if (args->flags2) | |
462 | args->flags |= XFSMNT_FLAGS2; | |
463 | return 0; | |
464 | } | |
465 | ||
466 | struct proc_xfs_info { | |
467 | int flag; | |
468 | char *str; | |
469 | }; | |
470 | ||
471 | STATIC int | |
472 | xfs_showargs( | |
473 | struct xfs_mount *mp, | |
474 | struct seq_file *m) | |
475 | { | |
476 | static struct proc_xfs_info xfs_info_set[] = { | |
477 | /* the few simple ones we can get from the mount struct */ | |
1bd960ee | 478 | { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, |
a67d7c5f DC |
479 | { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, |
480 | { XFS_MOUNT_INO64, "," MNTOPT_INO64 }, | |
481 | { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, | |
482 | { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC }, | |
483 | { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, | |
484 | { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, | |
485 | { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC }, | |
486 | { XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 }, | |
487 | { XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM }, | |
488 | { XFS_MOUNT_DMAPI, "," MNTOPT_DMAPI }, | |
489 | { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, | |
490 | { 0, NULL } | |
491 | }; | |
492 | static struct proc_xfs_info xfs_info_unset[] = { | |
493 | /* the few simple ones we can get from the mount struct */ | |
a67d7c5f DC |
494 | { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, |
495 | { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, | |
496 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, | |
497 | { 0, NULL } | |
498 | }; | |
499 | struct proc_xfs_info *xfs_infop; | |
500 | ||
501 | for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) { | |
502 | if (mp->m_flags & xfs_infop->flag) | |
503 | seq_puts(m, xfs_infop->str); | |
504 | } | |
505 | for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) { | |
506 | if (!(mp->m_flags & xfs_infop->flag)) | |
507 | seq_puts(m, xfs_infop->str); | |
508 | } | |
509 | ||
510 | if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) | |
511 | seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk", | |
512 | (int)(1 << mp->m_writeio_log) >> 10); | |
513 | ||
514 | if (mp->m_logbufs > 0) | |
515 | seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs); | |
516 | if (mp->m_logbsize > 0) | |
517 | seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10); | |
518 | ||
519 | if (mp->m_logname) | |
520 | seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname); | |
521 | if (mp->m_rtname) | |
522 | seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname); | |
523 | ||
524 | if (mp->m_dalign > 0) | |
525 | seq_printf(m, "," MNTOPT_SUNIT "=%d", | |
526 | (int)XFS_FSB_TO_BB(mp, mp->m_dalign)); | |
527 | if (mp->m_swidth > 0) | |
528 | seq_printf(m, "," MNTOPT_SWIDTH "=%d", | |
529 | (int)XFS_FSB_TO_BB(mp, mp->m_swidth)); | |
530 | ||
531 | if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD)) | |
532 | seq_puts(m, "," MNTOPT_USRQUOTA); | |
533 | else if (mp->m_qflags & XFS_UQUOTA_ACCT) | |
534 | seq_puts(m, "," MNTOPT_UQUOTANOENF); | |
535 | ||
536 | if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
537 | seq_puts(m, "," MNTOPT_PRJQUOTA); | |
538 | else if (mp->m_qflags & XFS_PQUOTA_ACCT) | |
539 | seq_puts(m, "," MNTOPT_PQUOTANOENF); | |
540 | ||
541 | if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
542 | seq_puts(m, "," MNTOPT_GRPQUOTA); | |
543 | else if (mp->m_qflags & XFS_GQUOTA_ACCT) | |
544 | seq_puts(m, "," MNTOPT_GQUOTANOENF); | |
545 | ||
546 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) | |
547 | seq_puts(m, "," MNTOPT_NOQUOTA); | |
548 | ||
549 | return 0; | |
550 | } | |
1da177e4 LT |
551 | __uint64_t |
552 | xfs_max_file_offset( | |
553 | unsigned int blockshift) | |
554 | { | |
555 | unsigned int pagefactor = 1; | |
556 | unsigned int bitshift = BITS_PER_LONG - 1; | |
557 | ||
558 | /* Figure out maximum filesize, on Linux this can depend on | |
559 | * the filesystem blocksize (on 32 bit platforms). | |
560 | * __block_prepare_write does this in an [unsigned] long... | |
561 | * page->index << (PAGE_CACHE_SHIFT - bbits) | |
562 | * So, for page sized blocks (4K on 32 bit platforms), | |
563 | * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is | |
564 | * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) | |
565 | * but for smaller blocksizes it is less (bbits = log2 bsize). | |
566 | * Note1: get_block_t takes a long (implicit cast from above) | |
567 | * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch | |
568 | * can optionally convert the [unsigned] long from above into | |
569 | * an [unsigned] long long. | |
570 | */ | |
571 | ||
572 | #if BITS_PER_LONG == 32 | |
573 | # if defined(CONFIG_LBD) | |
574 | ASSERT(sizeof(sector_t) == 8); | |
575 | pagefactor = PAGE_CACHE_SIZE; | |
576 | bitshift = BITS_PER_LONG; | |
577 | # else | |
578 | pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift); | |
579 | # endif | |
580 | #endif | |
581 | ||
582 | return (((__uint64_t)pagefactor) << bitshift) - 1; | |
583 | } | |
584 | ||
1da177e4 LT |
585 | int |
586 | xfs_blkdev_get( | |
587 | xfs_mount_t *mp, | |
588 | const char *name, | |
589 | struct block_device **bdevp) | |
590 | { | |
591 | int error = 0; | |
592 | ||
30c40d2c | 593 | *bdevp = open_bdev_exclusive(name, FMODE_READ|FMODE_WRITE, mp); |
1da177e4 LT |
594 | if (IS_ERR(*bdevp)) { |
595 | error = PTR_ERR(*bdevp); | |
596 | printk("XFS: Invalid device [%s], error=%d\n", name, error); | |
597 | } | |
598 | ||
599 | return -error; | |
600 | } | |
601 | ||
602 | void | |
603 | xfs_blkdev_put( | |
604 | struct block_device *bdev) | |
605 | { | |
606 | if (bdev) | |
30c40d2c | 607 | close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE); |
1da177e4 LT |
608 | } |
609 | ||
f538d4da CH |
610 | /* |
611 | * Try to write out the superblock using barriers. | |
612 | */ | |
613 | STATIC int | |
614 | xfs_barrier_test( | |
615 | xfs_mount_t *mp) | |
616 | { | |
617 | xfs_buf_t *sbp = xfs_getsb(mp, 0); | |
618 | int error; | |
619 | ||
620 | XFS_BUF_UNDONE(sbp); | |
621 | XFS_BUF_UNREAD(sbp); | |
622 | XFS_BUF_UNDELAYWRITE(sbp); | |
623 | XFS_BUF_WRITE(sbp); | |
624 | XFS_BUF_UNASYNC(sbp); | |
625 | XFS_BUF_ORDERED(sbp); | |
626 | ||
627 | xfsbdstrat(mp, sbp); | |
628 | error = xfs_iowait(sbp); | |
629 | ||
630 | /* | |
631 | * Clear all the flags we set and possible error state in the | |
632 | * buffer. We only did the write to try out whether barriers | |
633 | * worked and shouldn't leave any traces in the superblock | |
634 | * buffer. | |
635 | */ | |
636 | XFS_BUF_DONE(sbp); | |
637 | XFS_BUF_ERROR(sbp, 0); | |
638 | XFS_BUF_UNORDERED(sbp); | |
639 | ||
640 | xfs_buf_relse(sbp); | |
641 | return error; | |
642 | } | |
643 | ||
644 | void | |
645 | xfs_mountfs_check_barriers(xfs_mount_t *mp) | |
646 | { | |
647 | int error; | |
648 | ||
649 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
650 | xfs_fs_cmn_err(CE_NOTE, mp, | |
651 | "Disabling barriers, not supported with external log device"); | |
652 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 653 | return; |
f538d4da CH |
654 | } |
655 | ||
b2ea401b NS |
656 | if (xfs_readonly_buftarg(mp->m_ddev_targp)) { |
657 | xfs_fs_cmn_err(CE_NOTE, mp, | |
658 | "Disabling barriers, underlying device is readonly"); | |
659 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
660 | return; | |
661 | } | |
662 | ||
f538d4da CH |
663 | error = xfs_barrier_test(mp); |
664 | if (error) { | |
665 | xfs_fs_cmn_err(CE_NOTE, mp, | |
666 | "Disabling barriers, trial barrier write failed"); | |
667 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 668 | return; |
f538d4da CH |
669 | } |
670 | } | |
671 | ||
672 | void | |
673 | xfs_blkdev_issue_flush( | |
674 | xfs_buftarg_t *buftarg) | |
675 | { | |
ce8e922c | 676 | blkdev_issue_flush(buftarg->bt_bdev, NULL); |
f538d4da | 677 | } |
1da177e4 | 678 | |
19f354d4 CH |
679 | STATIC void |
680 | xfs_close_devices( | |
681 | struct xfs_mount *mp) | |
682 | { | |
683 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
c032bfcf | 684 | struct block_device *logdev = mp->m_logdev_targp->bt_bdev; |
19f354d4 | 685 | xfs_free_buftarg(mp->m_logdev_targp); |
c032bfcf | 686 | xfs_blkdev_put(logdev); |
19f354d4 CH |
687 | } |
688 | if (mp->m_rtdev_targp) { | |
c032bfcf | 689 | struct block_device *rtdev = mp->m_rtdev_targp->bt_bdev; |
19f354d4 | 690 | xfs_free_buftarg(mp->m_rtdev_targp); |
c032bfcf | 691 | xfs_blkdev_put(rtdev); |
19f354d4 CH |
692 | } |
693 | xfs_free_buftarg(mp->m_ddev_targp); | |
694 | } | |
695 | ||
696 | /* | |
697 | * The file system configurations are: | |
698 | * (1) device (partition) with data and internal log | |
699 | * (2) logical volume with data and log subvolumes. | |
700 | * (3) logical volume with data, log, and realtime subvolumes. | |
701 | * | |
702 | * We only have to handle opening the log and realtime volumes here if | |
703 | * they are present. The data subvolume has already been opened by | |
704 | * get_sb_bdev() and is stored in sb->s_bdev. | |
705 | */ | |
706 | STATIC int | |
707 | xfs_open_devices( | |
708 | struct xfs_mount *mp, | |
709 | struct xfs_mount_args *args) | |
710 | { | |
711 | struct block_device *ddev = mp->m_super->s_bdev; | |
712 | struct block_device *logdev = NULL, *rtdev = NULL; | |
713 | int error; | |
714 | ||
715 | /* | |
716 | * Open real time and log devices - order is important. | |
717 | */ | |
718 | if (args->logname[0]) { | |
719 | error = xfs_blkdev_get(mp, args->logname, &logdev); | |
720 | if (error) | |
721 | goto out; | |
722 | } | |
723 | ||
724 | if (args->rtname[0]) { | |
725 | error = xfs_blkdev_get(mp, args->rtname, &rtdev); | |
726 | if (error) | |
727 | goto out_close_logdev; | |
728 | ||
729 | if (rtdev == ddev || rtdev == logdev) { | |
730 | cmn_err(CE_WARN, | |
731 | "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev."); | |
732 | error = EINVAL; | |
733 | goto out_close_rtdev; | |
734 | } | |
735 | } | |
736 | ||
737 | /* | |
738 | * Setup xfs_mount buffer target pointers | |
739 | */ | |
740 | error = ENOMEM; | |
741 | mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0); | |
742 | if (!mp->m_ddev_targp) | |
743 | goto out_close_rtdev; | |
744 | ||
745 | if (rtdev) { | |
746 | mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1); | |
747 | if (!mp->m_rtdev_targp) | |
748 | goto out_free_ddev_targ; | |
749 | } | |
750 | ||
751 | if (logdev && logdev != ddev) { | |
752 | mp->m_logdev_targp = xfs_alloc_buftarg(logdev, 1); | |
753 | if (!mp->m_logdev_targp) | |
754 | goto out_free_rtdev_targ; | |
755 | } else { | |
756 | mp->m_logdev_targp = mp->m_ddev_targp; | |
757 | } | |
758 | ||
759 | return 0; | |
760 | ||
761 | out_free_rtdev_targ: | |
762 | if (mp->m_rtdev_targp) | |
763 | xfs_free_buftarg(mp->m_rtdev_targp); | |
764 | out_free_ddev_targ: | |
765 | xfs_free_buftarg(mp->m_ddev_targp); | |
766 | out_close_rtdev: | |
767 | if (rtdev) | |
768 | xfs_blkdev_put(rtdev); | |
769 | out_close_logdev: | |
770 | if (logdev && logdev != ddev) | |
771 | xfs_blkdev_put(logdev); | |
772 | out: | |
773 | return error; | |
774 | } | |
775 | ||
e34b562c CH |
776 | /* |
777 | * Setup xfs_mount buffer target pointers based on superblock | |
778 | */ | |
779 | STATIC int | |
780 | xfs_setup_devices( | |
781 | struct xfs_mount *mp) | |
782 | { | |
783 | int error; | |
19f354d4 | 784 | |
e34b562c CH |
785 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
786 | mp->m_sb.sb_sectsize); | |
787 | if (error) | |
788 | return error; | |
789 | ||
790 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
791 | unsigned int log_sector_size = BBSIZE; | |
792 | ||
793 | if (xfs_sb_version_hassector(&mp->m_sb)) | |
794 | log_sector_size = mp->m_sb.sb_logsectsize; | |
795 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | |
796 | mp->m_sb.sb_blocksize, | |
797 | log_sector_size); | |
798 | if (error) | |
799 | return error; | |
800 | } | |
801 | if (mp->m_rtdev_targp) { | |
802 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | |
803 | mp->m_sb.sb_blocksize, | |
804 | mp->m_sb.sb_sectsize); | |
805 | if (error) | |
806 | return error; | |
807 | } | |
808 | ||
809 | return 0; | |
810 | } | |
19f354d4 | 811 | |
249a8c11 DC |
812 | /* |
813 | * XFS AIL push thread support | |
814 | */ | |
815 | void | |
816 | xfsaild_wakeup( | |
817 | xfs_mount_t *mp, | |
818 | xfs_lsn_t threshold_lsn) | |
819 | { | |
820 | mp->m_ail.xa_target = threshold_lsn; | |
821 | wake_up_process(mp->m_ail.xa_task); | |
822 | } | |
823 | ||
824 | int | |
825 | xfsaild( | |
826 | void *data) | |
827 | { | |
828 | xfs_mount_t *mp = (xfs_mount_t *)data; | |
829 | xfs_lsn_t last_pushed_lsn = 0; | |
830 | long tout = 0; | |
831 | ||
832 | while (!kthread_should_stop()) { | |
833 | if (tout) | |
834 | schedule_timeout_interruptible(msecs_to_jiffies(tout)); | |
835 | tout = 1000; | |
836 | ||
837 | /* swsusp */ | |
838 | try_to_freeze(); | |
839 | ||
840 | ASSERT(mp->m_log); | |
841 | if (XFS_FORCED_SHUTDOWN(mp)) | |
842 | continue; | |
843 | ||
844 | tout = xfsaild_push(mp, &last_pushed_lsn); | |
845 | } | |
846 | ||
847 | return 0; | |
848 | } /* xfsaild */ | |
849 | ||
850 | int | |
851 | xfsaild_start( | |
852 | xfs_mount_t *mp) | |
853 | { | |
854 | mp->m_ail.xa_target = 0; | |
855 | mp->m_ail.xa_task = kthread_run(xfsaild, mp, "xfsaild"); | |
856 | if (IS_ERR(mp->m_ail.xa_task)) | |
857 | return -PTR_ERR(mp->m_ail.xa_task); | |
858 | return 0; | |
859 | } | |
860 | ||
861 | void | |
862 | xfsaild_stop( | |
863 | xfs_mount_t *mp) | |
864 | { | |
865 | kthread_stop(mp->m_ail.xa_task); | |
866 | } | |
867 | ||
868 | ||
869 | ||
1da177e4 | 870 | STATIC struct inode * |
a50cd269 | 871 | xfs_fs_alloc_inode( |
1da177e4 LT |
872 | struct super_block *sb) |
873 | { | |
df80c933 | 874 | return kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP); |
1da177e4 LT |
875 | } |
876 | ||
877 | STATIC void | |
a50cd269 | 878 | xfs_fs_destroy_inode( |
1da177e4 LT |
879 | struct inode *inode) |
880 | { | |
a19d033c | 881 | kmem_zone_free(xfs_vnode_zone, inode); |
1da177e4 LT |
882 | } |
883 | ||
884 | STATIC void | |
a50cd269 | 885 | xfs_fs_inode_init_once( |
4ba9b9d0 | 886 | void *vnode) |
1da177e4 | 887 | { |
863890cd | 888 | inode_init_once((struct inode *)vnode); |
1da177e4 LT |
889 | } |
890 | ||
07c8f675 DC |
891 | |
892 | /* | |
893 | * Slab object creation initialisation for the XFS inode. | |
894 | * This covers only the idempotent fields in the XFS inode; | |
895 | * all other fields need to be initialised on allocation | |
896 | * from the slab. This avoids the need to repeatedly intialise | |
897 | * fields in the xfs inode that left in the initialise state | |
898 | * when freeing the inode. | |
899 | */ | |
900 | void | |
901 | xfs_inode_init_once( | |
07c8f675 DC |
902 | void *inode) |
903 | { | |
904 | struct xfs_inode *ip = inode; | |
905 | ||
906 | memset(ip, 0, sizeof(struct xfs_inode)); | |
907 | atomic_set(&ip->i_iocount, 0); | |
908 | atomic_set(&ip->i_pincount, 0); | |
909 | spin_lock_init(&ip->i_flags_lock); | |
910 | INIT_LIST_HEAD(&ip->i_reclaim); | |
911 | init_waitqueue_head(&ip->i_ipin_wait); | |
912 | /* | |
913 | * Because we want to use a counting completion, complete | |
914 | * the flush completion once to allow a single access to | |
915 | * the flush completion without blocking. | |
916 | */ | |
917 | init_completion(&ip->i_flush); | |
918 | complete(&ip->i_flush); | |
919 | ||
920 | mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER, | |
921 | "xfsino", ip->i_ino); | |
922 | mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino); | |
923 | } | |
924 | ||
1da177e4 LT |
925 | /* |
926 | * Attempt to flush the inode, this will actually fail | |
927 | * if the inode is pinned, but we dirty the inode again | |
928 | * at the point when it is unpinned after a log write, | |
8758280f | 929 | * since this is when the inode itself becomes flushable. |
1da177e4 LT |
930 | */ |
931 | STATIC int | |
a50cd269 | 932 | xfs_fs_write_inode( |
1da177e4 LT |
933 | struct inode *inode, |
934 | int sync) | |
935 | { | |
a3f74ffb DC |
936 | int error = 0; |
937 | int flags = 0; | |
1da177e4 | 938 | |
cf441eeb | 939 | xfs_itrace_entry(XFS_I(inode)); |
739bfb2a CH |
940 | if (sync) { |
941 | filemap_fdatawait(inode->i_mapping); | |
942 | flags |= FLUSH_SYNC; | |
1da177e4 | 943 | } |
739bfb2a | 944 | error = xfs_inode_flush(XFS_I(inode), flags); |
e893bffd LM |
945 | /* |
946 | * if we failed to write out the inode then mark | |
947 | * it dirty again so we'll try again later. | |
948 | */ | |
949 | if (error) | |
950 | mark_inode_dirty_sync(inode); | |
739bfb2a | 951 | |
1da177e4 LT |
952 | return -error; |
953 | } | |
954 | ||
955 | STATIC void | |
a50cd269 | 956 | xfs_fs_clear_inode( |
1da177e4 LT |
957 | struct inode *inode) |
958 | { | |
1543d79c | 959 | xfs_inode_t *ip = XFS_I(inode); |
56d433e4 | 960 | |
02ba71de | 961 | /* |
1543d79c | 962 | * ip can be null when xfs_iget_core calls xfs_idestroy if we |
02ba71de CH |
963 | * find an inode with di_mode == 0 but without IGET_CREATE set. |
964 | */ | |
1543d79c | 965 | if (ip) { |
cf441eeb | 966 | xfs_itrace_entry(ip); |
1543d79c CH |
967 | XFS_STATS_INC(vn_rele); |
968 | XFS_STATS_INC(vn_remove); | |
969 | XFS_STATS_INC(vn_reclaim); | |
970 | XFS_STATS_DEC(vn_active); | |
971 | ||
972 | xfs_inactive(ip); | |
973 | xfs_iflags_clear(ip, XFS_IMODIFIED); | |
974 | if (xfs_reclaim(ip)) | |
34a622b2 | 975 | panic("%s: cannot reclaim 0x%p\n", __func__, inode); |
b3aea4ed | 976 | } |
56d433e4 | 977 | |
739bfb2a | 978 | ASSERT(XFS_I(inode) == NULL); |
56d433e4 | 979 | } |
1da177e4 LT |
980 | |
981 | /* | |
982 | * Enqueue a work item to be picked up by the vfs xfssyncd thread. | |
983 | * Doing this has two advantages: | |
984 | * - It saves on stack space, which is tight in certain situations | |
985 | * - It can be used (with care) as a mechanism to avoid deadlocks. | |
986 | * Flushing while allocating in a full filesystem requires both. | |
987 | */ | |
988 | STATIC void | |
989 | xfs_syncd_queue_work( | |
74394496 | 990 | struct xfs_mount *mp, |
1da177e4 | 991 | void *data, |
74394496 | 992 | void (*syncer)(struct xfs_mount *, void *)) |
1da177e4 | 993 | { |
b83bd138 | 994 | struct bhv_vfs_sync_work *work; |
1da177e4 | 995 | |
b83bd138 | 996 | work = kmem_alloc(sizeof(struct bhv_vfs_sync_work), KM_SLEEP); |
1da177e4 LT |
997 | INIT_LIST_HEAD(&work->w_list); |
998 | work->w_syncer = syncer; | |
999 | work->w_data = data; | |
74394496 CH |
1000 | work->w_mount = mp; |
1001 | spin_lock(&mp->m_sync_lock); | |
1002 | list_add_tail(&work->w_list, &mp->m_sync_list); | |
1003 | spin_unlock(&mp->m_sync_lock); | |
1004 | wake_up_process(mp->m_sync_task); | |
1da177e4 LT |
1005 | } |
1006 | ||
1007 | /* | |
1008 | * Flush delayed allocate data, attempting to free up reserved space | |
1009 | * from existing allocations. At this point a new allocation attempt | |
1010 | * has failed with ENOSPC and we are in the process of scratching our | |
1011 | * heads, looking about for more room... | |
1012 | */ | |
1013 | STATIC void | |
1014 | xfs_flush_inode_work( | |
74394496 CH |
1015 | struct xfs_mount *mp, |
1016 | void *arg) | |
1da177e4 | 1017 | { |
74394496 CH |
1018 | struct inode *inode = arg; |
1019 | filemap_flush(inode->i_mapping); | |
1020 | iput(inode); | |
1da177e4 LT |
1021 | } |
1022 | ||
1023 | void | |
1024 | xfs_flush_inode( | |
1025 | xfs_inode_t *ip) | |
1026 | { | |
01651646 | 1027 | struct inode *inode = VFS_I(ip); |
1da177e4 LT |
1028 | |
1029 | igrab(inode); | |
74394496 | 1030 | xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work); |
041e0e3b | 1031 | delay(msecs_to_jiffies(500)); |
1da177e4 LT |
1032 | } |
1033 | ||
1034 | /* | |
1035 | * This is the "bigger hammer" version of xfs_flush_inode_work... | |
1036 | * (IOW, "If at first you don't succeed, use a Bigger Hammer"). | |
1037 | */ | |
1038 | STATIC void | |
1039 | xfs_flush_device_work( | |
74394496 CH |
1040 | struct xfs_mount *mp, |
1041 | void *arg) | |
1da177e4 | 1042 | { |
74394496 | 1043 | struct inode *inode = arg; |
b267ce99 | 1044 | sync_blockdev(mp->m_super->s_bdev); |
74394496 | 1045 | iput(inode); |
1da177e4 LT |
1046 | } |
1047 | ||
1048 | void | |
1049 | xfs_flush_device( | |
1050 | xfs_inode_t *ip) | |
1051 | { | |
e4f75291 | 1052 | struct inode *inode = VFS_I(ip); |
1da177e4 LT |
1053 | |
1054 | igrab(inode); | |
74394496 | 1055 | xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work); |
041e0e3b | 1056 | delay(msecs_to_jiffies(500)); |
1da177e4 LT |
1057 | xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC); |
1058 | } | |
1059 | ||
1da177e4 | 1060 | STATIC void |
74394496 CH |
1061 | xfs_sync_worker( |
1062 | struct xfs_mount *mp, | |
1da177e4 LT |
1063 | void *unused) |
1064 | { | |
1065 | int error; | |
1066 | ||
74394496 | 1067 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) |
7e20694d | 1068 | error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR); |
74394496 CH |
1069 | mp->m_sync_seq++; |
1070 | wake_up(&mp->m_wait_single_sync_task); | |
1da177e4 LT |
1071 | } |
1072 | ||
1073 | STATIC int | |
1074 | xfssyncd( | |
1075 | void *arg) | |
1076 | { | |
74394496 | 1077 | struct xfs_mount *mp = arg; |
1da177e4 | 1078 | long timeleft; |
b83bd138 | 1079 | bhv_vfs_sync_work_t *work, *n; |
4df08c52 | 1080 | LIST_HEAD (tmp); |
1da177e4 | 1081 | |
83144186 | 1082 | set_freezable(); |
041e0e3b | 1083 | timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10); |
1da177e4 | 1084 | for (;;) { |
041e0e3b | 1085 | timeleft = schedule_timeout_interruptible(timeleft); |
1da177e4 | 1086 | /* swsusp */ |
3e1d1d28 | 1087 | try_to_freeze(); |
74394496 | 1088 | if (kthread_should_stop() && list_empty(&mp->m_sync_list)) |
1da177e4 LT |
1089 | break; |
1090 | ||
74394496 | 1091 | spin_lock(&mp->m_sync_lock); |
1da177e4 LT |
1092 | /* |
1093 | * We can get woken by laptop mode, to do a sync - | |
1094 | * that's the (only!) case where the list would be | |
1095 | * empty with time remaining. | |
1096 | */ | |
74394496 | 1097 | if (!timeleft || list_empty(&mp->m_sync_list)) { |
1da177e4 | 1098 | if (!timeleft) |
041e0e3b NA |
1099 | timeleft = xfs_syncd_centisecs * |
1100 | msecs_to_jiffies(10); | |
74394496 CH |
1101 | INIT_LIST_HEAD(&mp->m_sync_work.w_list); |
1102 | list_add_tail(&mp->m_sync_work.w_list, | |
1103 | &mp->m_sync_list); | |
1da177e4 | 1104 | } |
74394496 | 1105 | list_for_each_entry_safe(work, n, &mp->m_sync_list, w_list) |
1da177e4 | 1106 | list_move(&work->w_list, &tmp); |
74394496 | 1107 | spin_unlock(&mp->m_sync_lock); |
1da177e4 LT |
1108 | |
1109 | list_for_each_entry_safe(work, n, &tmp, w_list) { | |
74394496 | 1110 | (*work->w_syncer)(mp, work->w_data); |
1da177e4 | 1111 | list_del(&work->w_list); |
74394496 | 1112 | if (work == &mp->m_sync_work) |
1da177e4 | 1113 | continue; |
f0e2d93c | 1114 | kmem_free(work); |
1da177e4 LT |
1115 | } |
1116 | } | |
1117 | ||
1da177e4 LT |
1118 | return 0; |
1119 | } | |
1120 | ||
a738159d CH |
1121 | STATIC void |
1122 | xfs_free_fsname( | |
1123 | struct xfs_mount *mp) | |
1124 | { | |
1125 | kfree(mp->m_fsname); | |
1126 | kfree(mp->m_rtname); | |
1127 | kfree(mp->m_logname); | |
1128 | } | |
1129 | ||
1da177e4 | 1130 | STATIC void |
a50cd269 | 1131 | xfs_fs_put_super( |
1da177e4 LT |
1132 | struct super_block *sb) |
1133 | { | |
745f6919 | 1134 | struct xfs_mount *mp = XFS_M(sb); |
e48ad316 CH |
1135 | struct xfs_inode *rip = mp->m_rootip; |
1136 | int unmount_event_flags = 0; | |
1da177e4 LT |
1137 | int error; |
1138 | ||
74394496 CH |
1139 | kthread_stop(mp->m_sync_task); |
1140 | ||
745f6919 | 1141 | xfs_sync(mp, SYNC_ATTR | SYNC_DELWRI); |
e48ad316 CH |
1142 | |
1143 | #ifdef HAVE_DMAPI | |
1144 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1145 | unmount_event_flags = | |
1146 | (mp->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? | |
1147 | 0 : DM_FLAGS_UNWANTED; | |
1148 | /* | |
1149 | * Ignore error from dmapi here, first unmount is not allowed | |
1150 | * to fail anyway, and second we wouldn't want to fail a | |
1151 | * unmount because of dmapi. | |
1152 | */ | |
1153 | XFS_SEND_PREUNMOUNT(mp, rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL, | |
1154 | NULL, NULL, 0, 0, unmount_event_flags); | |
1155 | } | |
1156 | #endif | |
1157 | ||
1158 | /* | |
1159 | * Blow away any referenced inode in the filestreams cache. | |
1160 | * This can and will cause log traffic as inodes go inactive | |
1161 | * here. | |
1162 | */ | |
1163 | xfs_filestream_unmount(mp); | |
1164 | ||
1165 | XFS_bflush(mp->m_ddev_targp); | |
1166 | error = xfs_unmount_flush(mp, 0); | |
1167 | WARN_ON(error); | |
1168 | ||
e48ad316 CH |
1169 | /* |
1170 | * If we're forcing a shutdown, typically because of a media error, | |
1171 | * we want to make sure we invalidate dirty pages that belong to | |
1172 | * referenced vnodes as well. | |
1173 | */ | |
1174 | if (XFS_FORCED_SHUTDOWN(mp)) { | |
1175 | error = xfs_sync(mp, SYNC_WAIT | SYNC_CLOSE); | |
1176 | ASSERT(error != EFSCORRUPTED); | |
1177 | } | |
1178 | ||
1179 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1180 | XFS_SEND_UNMOUNT(mp, rip, DM_RIGHT_NULL, 0, 0, | |
1181 | unmount_event_flags); | |
1182 | } | |
1183 | ||
19f354d4 | 1184 | xfs_unmountfs(mp); |
6203300e | 1185 | xfs_freesb(mp); |
c962fb79 | 1186 | xfs_icsb_destroy_counters(mp); |
19f354d4 | 1187 | xfs_close_devices(mp); |
e48ad316 CH |
1188 | xfs_qmops_put(mp); |
1189 | xfs_dmops_put(mp); | |
a738159d | 1190 | xfs_free_fsname(mp); |
c962fb79 | 1191 | kfree(mp); |
1da177e4 LT |
1192 | } |
1193 | ||
1194 | STATIC void | |
a50cd269 | 1195 | xfs_fs_write_super( |
1da177e4 LT |
1196 | struct super_block *sb) |
1197 | { | |
b83bd138 | 1198 | if (!(sb->s_flags & MS_RDONLY)) |
745f6919 | 1199 | xfs_sync(XFS_M(sb), SYNC_FSDATA); |
1da177e4 LT |
1200 | sb->s_dirt = 0; |
1201 | } | |
1202 | ||
1203 | STATIC int | |
a50cd269 | 1204 | xfs_fs_sync_super( |
1da177e4 LT |
1205 | struct super_block *sb, |
1206 | int wait) | |
1207 | { | |
745f6919 | 1208 | struct xfs_mount *mp = XFS_M(sb); |
b83bd138 NS |
1209 | int error; |
1210 | int flags; | |
1da177e4 | 1211 | |
e893bffd LM |
1212 | /* |
1213 | * Treat a sync operation like a freeze. This is to work | |
1214 | * around a race in sync_inodes() which works in two phases | |
1215 | * - an asynchronous flush, which can write out an inode | |
1216 | * without waiting for file size updates to complete, and a | |
1217 | * synchronous flush, which wont do anything because the | |
1218 | * async flush removed the inode's dirty flag. Also | |
1219 | * sync_inodes() will not see any files that just have | |
1220 | * outstanding transactions to be flushed because we don't | |
1221 | * dirty the Linux inode until after the transaction I/O | |
1222 | * completes. | |
1223 | */ | |
1224 | if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) { | |
2823945f DC |
1225 | /* |
1226 | * First stage of freeze - no more writers will make progress | |
1227 | * now we are here, so we flush delwri and delalloc buffers | |
1228 | * here, then wait for all I/O to complete. Data is frozen at | |
1229 | * that point. Metadata is not frozen, transactions can still | |
1230 | * occur here so don't bother flushing the buftarg (i.e | |
1231 | * SYNC_QUIESCE) because it'll just get dirty again. | |
1232 | */ | |
516b2e7c | 1233 | flags = SYNC_DATA_QUIESCE; |
2823945f | 1234 | } else |
e893bffd | 1235 | flags = SYNC_FSDATA; |
1da177e4 | 1236 | |
745f6919 | 1237 | error = xfs_sync(mp, flags); |
1da177e4 LT |
1238 | sb->s_dirt = 0; |
1239 | ||
1240 | if (unlikely(laptop_mode)) { | |
74394496 | 1241 | int prev_sync_seq = mp->m_sync_seq; |
1da177e4 LT |
1242 | |
1243 | /* | |
1244 | * The disk must be active because we're syncing. | |
1245 | * We schedule xfssyncd now (now that the disk is | |
1246 | * active) instead of later (when it might not be). | |
1247 | */ | |
74394496 | 1248 | wake_up_process(mp->m_sync_task); |
1da177e4 LT |
1249 | /* |
1250 | * We have to wait for the sync iteration to complete. | |
1251 | * If we don't, the disk activity caused by the sync | |
1252 | * will come after the sync is completed, and that | |
1253 | * triggers another sync from laptop mode. | |
1254 | */ | |
74394496 CH |
1255 | wait_event(mp->m_wait_single_sync_task, |
1256 | mp->m_sync_seq != prev_sync_seq); | |
1da177e4 LT |
1257 | } |
1258 | ||
1259 | return -error; | |
1260 | } | |
1261 | ||
1262 | STATIC int | |
a50cd269 | 1263 | xfs_fs_statfs( |
726c3342 | 1264 | struct dentry *dentry, |
1da177e4 LT |
1265 | struct kstatfs *statp) |
1266 | { | |
4ca488eb CH |
1267 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
1268 | xfs_sb_t *sbp = &mp->m_sb; | |
1269 | __uint64_t fakeinos, id; | |
1270 | xfs_extlen_t lsize; | |
1271 | ||
1272 | statp->f_type = XFS_SB_MAGIC; | |
1273 | statp->f_namelen = MAXNAMELEN - 1; | |
1274 | ||
1275 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); | |
1276 | statp->f_fsid.val[0] = (u32)id; | |
1277 | statp->f_fsid.val[1] = (u32)(id >> 32); | |
1278 | ||
d4d90b57 | 1279 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
4ca488eb CH |
1280 | |
1281 | spin_lock(&mp->m_sb_lock); | |
1282 | statp->f_bsize = sbp->sb_blocksize; | |
1283 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; | |
1284 | statp->f_blocks = sbp->sb_dblocks - lsize; | |
1285 | statp->f_bfree = statp->f_bavail = | |
1286 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); | |
1287 | fakeinos = statp->f_bfree << sbp->sb_inopblog; | |
1288 | #if XFS_BIG_INUMS | |
1289 | fakeinos += mp->m_inoadd; | |
1290 | #endif | |
1291 | statp->f_files = | |
1292 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); | |
1293 | if (mp->m_maxicount) | |
1294 | #if XFS_BIG_INUMS | |
1295 | if (!mp->m_inoadd) | |
1296 | #endif | |
1297 | statp->f_files = min_t(typeof(statp->f_files), | |
1298 | statp->f_files, | |
1299 | mp->m_maxicount); | |
1300 | statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); | |
1301 | spin_unlock(&mp->m_sb_lock); | |
1302 | ||
1303 | XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp); | |
1304 | return 0; | |
1da177e4 LT |
1305 | } |
1306 | ||
1307 | STATIC int | |
a50cd269 | 1308 | xfs_fs_remount( |
1da177e4 LT |
1309 | struct super_block *sb, |
1310 | int *flags, | |
1311 | char *options) | |
1312 | { | |
745f6919 | 1313 | struct xfs_mount *mp = XFS_M(sb); |
62a877e3 CH |
1314 | substring_t args[MAX_OPT_ARGS]; |
1315 | char *p; | |
1da177e4 | 1316 | |
62a877e3 CH |
1317 | while ((p = strsep(&options, ",")) != NULL) { |
1318 | int token; | |
bdd907ba | 1319 | |
62a877e3 CH |
1320 | if (!*p) |
1321 | continue; | |
48b62a1a | 1322 | |
62a877e3 CH |
1323 | token = match_token(p, tokens, args); |
1324 | switch (token) { | |
1325 | case Opt_barrier: | |
48b62a1a | 1326 | mp->m_flags |= XFS_MOUNT_BARRIER; |
62a877e3 CH |
1327 | |
1328 | /* | |
1329 | * Test if barriers are actually working if we can, | |
1330 | * else delay this check until the filesystem is | |
1331 | * marked writeable. | |
1332 | */ | |
1333 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) | |
1334 | xfs_mountfs_check_barriers(mp); | |
1335 | break; | |
1336 | case Opt_nobarrier: | |
48b62a1a | 1337 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
62a877e3 CH |
1338 | break; |
1339 | default: | |
6efdf281 CH |
1340 | /* |
1341 | * Logically we would return an error here to prevent | |
1342 | * users from believing they might have changed | |
1343 | * mount options using remount which can't be changed. | |
1344 | * | |
1345 | * But unfortunately mount(8) adds all options from | |
1346 | * mtab and fstab to the mount arguments in some cases | |
1347 | * so we can't blindly reject options, but have to | |
1348 | * check for each specified option if it actually | |
1349 | * differs from the currently set option and only | |
1350 | * reject it if that's the case. | |
1351 | * | |
1352 | * Until that is implemented we return success for | |
1353 | * every remount request, and silently ignore all | |
1354 | * options that we can't actually change. | |
1355 | */ | |
1356 | #if 0 | |
62a877e3 CH |
1357 | printk(KERN_INFO |
1358 | "XFS: mount option \"%s\" not supported for remount\n", p); | |
1359 | return -EINVAL; | |
6efdf281 | 1360 | #else |
6c5e51da | 1361 | break; |
6efdf281 | 1362 | #endif |
48b62a1a | 1363 | } |
62a877e3 CH |
1364 | } |
1365 | ||
1366 | /* rw/ro -> rw */ | |
1367 | if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(*flags & MS_RDONLY)) { | |
1368 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | |
1369 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1370 | xfs_mountfs_check_barriers(mp); | |
1371 | } | |
1372 | ||
1373 | /* rw -> ro */ | |
1374 | if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (*flags & MS_RDONLY)) { | |
48b62a1a CH |
1375 | xfs_filestream_flush(mp); |
1376 | xfs_sync(mp, SYNC_DATA_QUIESCE); | |
1377 | xfs_attr_quiesce(mp); | |
1378 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1379 | } | |
1380 | ||
62a877e3 | 1381 | return 0; |
1da177e4 LT |
1382 | } |
1383 | ||
9909c4aa CH |
1384 | /* |
1385 | * Second stage of a freeze. The data is already frozen so we only | |
1386 | * need to take care of themetadata. Once that's done write a dummy | |
1387 | * record to dirty the log in case of a crash while frozen. | |
1388 | */ | |
1da177e4 | 1389 | STATIC void |
a50cd269 | 1390 | xfs_fs_lockfs( |
1da177e4 LT |
1391 | struct super_block *sb) |
1392 | { | |
9909c4aa CH |
1393 | struct xfs_mount *mp = XFS_M(sb); |
1394 | ||
1395 | xfs_attr_quiesce(mp); | |
1396 | xfs_fs_log_dummy(mp); | |
1da177e4 LT |
1397 | } |
1398 | ||
1399 | STATIC int | |
a50cd269 | 1400 | xfs_fs_show_options( |
1da177e4 LT |
1401 | struct seq_file *m, |
1402 | struct vfsmount *mnt) | |
1403 | { | |
745f6919 | 1404 | return -xfs_showargs(XFS_M(mnt->mnt_sb), m); |
1da177e4 LT |
1405 | } |
1406 | ||
ee34807a | 1407 | STATIC int |
a50cd269 | 1408 | xfs_fs_quotasync( |
ee34807a NS |
1409 | struct super_block *sb, |
1410 | int type) | |
1411 | { | |
b09cc771 | 1412 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL); |
ee34807a NS |
1413 | } |
1414 | ||
1da177e4 | 1415 | STATIC int |
a50cd269 | 1416 | xfs_fs_getxstate( |
1da177e4 LT |
1417 | struct super_block *sb, |
1418 | struct fs_quota_stat *fqs) | |
1419 | { | |
b09cc771 | 1420 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs); |
1da177e4 LT |
1421 | } |
1422 | ||
1423 | STATIC int | |
a50cd269 | 1424 | xfs_fs_setxstate( |
1da177e4 LT |
1425 | struct super_block *sb, |
1426 | unsigned int flags, | |
1427 | int op) | |
1428 | { | |
b09cc771 | 1429 | return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags); |
1da177e4 LT |
1430 | } |
1431 | ||
1432 | STATIC int | |
a50cd269 | 1433 | xfs_fs_getxquota( |
1da177e4 LT |
1434 | struct super_block *sb, |
1435 | int type, | |
1436 | qid_t id, | |
1437 | struct fs_disk_quota *fdq) | |
1438 | { | |
b09cc771 | 1439 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1440 | (type == USRQUOTA) ? Q_XGETQUOTA : |
1441 | ((type == GRPQUOTA) ? Q_XGETGQUOTA : | |
1442 | Q_XGETPQUOTA), id, (caddr_t)fdq); | |
1da177e4 LT |
1443 | } |
1444 | ||
1445 | STATIC int | |
a50cd269 | 1446 | xfs_fs_setxquota( |
1da177e4 LT |
1447 | struct super_block *sb, |
1448 | int type, | |
1449 | qid_t id, | |
1450 | struct fs_disk_quota *fdq) | |
1451 | { | |
b09cc771 | 1452 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1453 | (type == USRQUOTA) ? Q_XSETQLIM : |
1454 | ((type == GRPQUOTA) ? Q_XSETGQLIM : | |
1455 | Q_XSETPQLIM), id, (caddr_t)fdq); | |
1da177e4 LT |
1456 | } |
1457 | ||
f8f15e42 CH |
1458 | /* |
1459 | * This function fills in xfs_mount_t fields based on mount args. | |
1460 | * Note: the superblock has _not_ yet been read in. | |
1461 | */ | |
1462 | STATIC int | |
1463 | xfs_start_flags( | |
1464 | struct xfs_mount_args *ap, | |
1465 | struct xfs_mount *mp) | |
1466 | { | |
a738159d CH |
1467 | int error; |
1468 | ||
f8f15e42 CH |
1469 | /* Values are in BBs */ |
1470 | if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | |
1471 | /* | |
1472 | * At this point the superblock has not been read | |
1473 | * in, therefore we do not know the block size. | |
1474 | * Before the mount call ends we will convert | |
1475 | * these to FSBs. | |
1476 | */ | |
1477 | mp->m_dalign = ap->sunit; | |
1478 | mp->m_swidth = ap->swidth; | |
1479 | } | |
1480 | ||
1481 | if (ap->logbufs != -1 && | |
1482 | ap->logbufs != 0 && | |
1483 | (ap->logbufs < XLOG_MIN_ICLOGS || | |
1484 | ap->logbufs > XLOG_MAX_ICLOGS)) { | |
1485 | cmn_err(CE_WARN, | |
1486 | "XFS: invalid logbufs value: %d [not %d-%d]", | |
1487 | ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); | |
1488 | return XFS_ERROR(EINVAL); | |
1489 | } | |
1490 | mp->m_logbufs = ap->logbufs; | |
1491 | if (ap->logbufsize != -1 && | |
1492 | ap->logbufsize != 0 && | |
1493 | (ap->logbufsize < XLOG_MIN_RECORD_BSIZE || | |
1494 | ap->logbufsize > XLOG_MAX_RECORD_BSIZE || | |
1495 | !is_power_of_2(ap->logbufsize))) { | |
1496 | cmn_err(CE_WARN, | |
1497 | "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | |
1498 | ap->logbufsize); | |
1499 | return XFS_ERROR(EINVAL); | |
1500 | } | |
a738159d CH |
1501 | |
1502 | error = ENOMEM; | |
1503 | ||
f8f15e42 CH |
1504 | mp->m_logbsize = ap->logbufsize; |
1505 | mp->m_fsname_len = strlen(ap->fsname) + 1; | |
a738159d CH |
1506 | |
1507 | mp->m_fsname = kstrdup(ap->fsname, GFP_KERNEL); | |
1508 | if (!mp->m_fsname) | |
1509 | goto out; | |
1510 | ||
f8f15e42 | 1511 | if (ap->rtname[0]) { |
a738159d CH |
1512 | mp->m_rtname = kstrdup(ap->rtname, GFP_KERNEL); |
1513 | if (!mp->m_rtname) | |
1514 | goto out_free_fsname; | |
1515 | ||
f8f15e42 | 1516 | } |
a738159d | 1517 | |
f8f15e42 | 1518 | if (ap->logname[0]) { |
a738159d CH |
1519 | mp->m_logname = kstrdup(ap->logname, GFP_KERNEL); |
1520 | if (!mp->m_logname) | |
1521 | goto out_free_rtname; | |
f8f15e42 CH |
1522 | } |
1523 | ||
1524 | if (ap->flags & XFSMNT_WSYNC) | |
1525 | mp->m_flags |= XFS_MOUNT_WSYNC; | |
1526 | #if XFS_BIG_INUMS | |
1527 | if (ap->flags & XFSMNT_INO64) { | |
1528 | mp->m_flags |= XFS_MOUNT_INO64; | |
1529 | mp->m_inoadd = XFS_INO64_OFFSET; | |
1530 | } | |
1531 | #endif | |
1532 | if (ap->flags & XFSMNT_RETERR) | |
1533 | mp->m_flags |= XFS_MOUNT_RETERR; | |
1534 | if (ap->flags & XFSMNT_NOALIGN) | |
1535 | mp->m_flags |= XFS_MOUNT_NOALIGN; | |
1536 | if (ap->flags & XFSMNT_SWALLOC) | |
1537 | mp->m_flags |= XFS_MOUNT_SWALLOC; | |
1538 | if (ap->flags & XFSMNT_OSYNCISOSYNC) | |
1539 | mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC; | |
1540 | if (ap->flags & XFSMNT_32BITINODES) | |
1541 | mp->m_flags |= XFS_MOUNT_32BITINODES; | |
1542 | ||
1543 | if (ap->flags & XFSMNT_IOSIZE) { | |
1544 | if (ap->iosizelog > XFS_MAX_IO_LOG || | |
1545 | ap->iosizelog < XFS_MIN_IO_LOG) { | |
1546 | cmn_err(CE_WARN, | |
1547 | "XFS: invalid log iosize: %d [not %d-%d]", | |
1548 | ap->iosizelog, XFS_MIN_IO_LOG, | |
1549 | XFS_MAX_IO_LOG); | |
1550 | return XFS_ERROR(EINVAL); | |
1551 | } | |
1552 | ||
1553 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | |
1554 | mp->m_readio_log = mp->m_writeio_log = ap->iosizelog; | |
1555 | } | |
1556 | ||
1557 | if (ap->flags & XFSMNT_IKEEP) | |
1558 | mp->m_flags |= XFS_MOUNT_IKEEP; | |
1559 | if (ap->flags & XFSMNT_DIRSYNC) | |
1560 | mp->m_flags |= XFS_MOUNT_DIRSYNC; | |
1561 | if (ap->flags & XFSMNT_ATTR2) | |
1562 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1563 | if (ap->flags & XFSMNT_NOATTR2) | |
1564 | mp->m_flags |= XFS_MOUNT_NOATTR2; | |
1565 | ||
1566 | if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE) | |
1567 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; | |
1568 | ||
1569 | /* | |
1570 | * no recovery flag requires a read-only mount | |
1571 | */ | |
1572 | if (ap->flags & XFSMNT_NORECOVERY) { | |
1573 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { | |
1574 | cmn_err(CE_WARN, | |
1575 | "XFS: tried to mount a FS read-write without recovery!"); | |
1576 | return XFS_ERROR(EINVAL); | |
1577 | } | |
1578 | mp->m_flags |= XFS_MOUNT_NORECOVERY; | |
1579 | } | |
1580 | ||
1581 | if (ap->flags & XFSMNT_NOUUID) | |
1582 | mp->m_flags |= XFS_MOUNT_NOUUID; | |
1583 | if (ap->flags & XFSMNT_BARRIER) | |
1584 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
1585 | else | |
1586 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
1587 | ||
1588 | if (ap->flags2 & XFSMNT2_FILESTREAMS) | |
1589 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; | |
1590 | ||
1591 | if (ap->flags & XFSMNT_DMAPI) | |
1592 | mp->m_flags |= XFS_MOUNT_DMAPI; | |
1593 | return 0; | |
a738159d CH |
1594 | |
1595 | ||
1596 | out_free_rtname: | |
1597 | kfree(mp->m_rtname); | |
1598 | out_free_fsname: | |
1599 | kfree(mp->m_fsname); | |
1600 | out: | |
1601 | return error; | |
f8f15e42 CH |
1602 | } |
1603 | ||
1604 | /* | |
1605 | * This function fills in xfs_mount_t fields based on mount args. | |
1606 | * Note: the superblock _has_ now been read in. | |
1607 | */ | |
1608 | STATIC int | |
1609 | xfs_finish_flags( | |
1610 | struct xfs_mount_args *ap, | |
1611 | struct xfs_mount *mp) | |
1612 | { | |
1613 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | |
1614 | ||
1615 | /* Fail a mount where the logbuf is smaller then the log stripe */ | |
1616 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { | |
1617 | if ((ap->logbufsize <= 0) && | |
1618 | (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) { | |
1619 | mp->m_logbsize = mp->m_sb.sb_logsunit; | |
1620 | } else if (ap->logbufsize > 0 && | |
1621 | ap->logbufsize < mp->m_sb.sb_logsunit) { | |
1622 | cmn_err(CE_WARN, | |
1623 | "XFS: logbuf size must be greater than or equal to log stripe size"); | |
1624 | return XFS_ERROR(EINVAL); | |
1625 | } | |
1626 | } else { | |
1627 | /* Fail a mount if the logbuf is larger than 32K */ | |
1628 | if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) { | |
1629 | cmn_err(CE_WARN, | |
1630 | "XFS: logbuf size for version 1 logs must be 16K or 32K"); | |
1631 | return XFS_ERROR(EINVAL); | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | /* | |
1636 | * mkfs'ed attr2 will turn on attr2 mount unless explicitly | |
1637 | * told by noattr2 to turn it off | |
1638 | */ | |
1639 | if (xfs_sb_version_hasattr2(&mp->m_sb) && | |
1640 | !(ap->flags & XFSMNT_NOATTR2)) | |
1641 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1642 | ||
1643 | /* | |
1644 | * prohibit r/w mounts of read-only filesystems | |
1645 | */ | |
1646 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { | |
1647 | cmn_err(CE_WARN, | |
1648 | "XFS: cannot mount a read-only filesystem as read-write"); | |
1649 | return XFS_ERROR(EROFS); | |
1650 | } | |
1651 | ||
1652 | /* | |
1653 | * check for shared mount. | |
1654 | */ | |
1655 | if (ap->flags & XFSMNT_SHARED) { | |
1656 | if (!xfs_sb_version_hasshared(&mp->m_sb)) | |
1657 | return XFS_ERROR(EINVAL); | |
1658 | ||
1659 | /* | |
1660 | * For IRIX 6.5, shared mounts must have the shared | |
1661 | * version bit set, have the persistent readonly | |
1662 | * field set, must be version 0 and can only be mounted | |
1663 | * read-only. | |
1664 | */ | |
1665 | if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) || | |
1666 | (mp->m_sb.sb_shared_vn != 0)) | |
1667 | return XFS_ERROR(EINVAL); | |
1668 | ||
1669 | mp->m_flags |= XFS_MOUNT_SHARED; | |
1670 | ||
1671 | /* | |
1672 | * Shared XFS V0 can't deal with DMI. Return EINVAL. | |
1673 | */ | |
1674 | if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI)) | |
1675 | return XFS_ERROR(EINVAL); | |
1676 | } | |
1677 | ||
1678 | if (ap->flags & XFSMNT_UQUOTA) { | |
1679 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); | |
1680 | if (ap->flags & XFSMNT_UQUOTAENF) | |
1681 | mp->m_qflags |= XFS_UQUOTA_ENFD; | |
1682 | } | |
1683 | ||
1684 | if (ap->flags & XFSMNT_GQUOTA) { | |
1685 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); | |
1686 | if (ap->flags & XFSMNT_GQUOTAENF) | |
1687 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1688 | } else if (ap->flags & XFSMNT_PQUOTA) { | |
1689 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); | |
1690 | if (ap->flags & XFSMNT_PQUOTAENF) | |
1691 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1692 | } | |
1693 | ||
1694 | return 0; | |
1695 | } | |
1696 | ||
1da177e4 | 1697 | STATIC int |
a50cd269 | 1698 | xfs_fs_fill_super( |
1da177e4 LT |
1699 | struct super_block *sb, |
1700 | void *data, | |
1701 | int silent) | |
1702 | { | |
f3dcc13f | 1703 | struct inode *root; |
745f6919 | 1704 | struct xfs_mount *mp = NULL; |
bdd907ba | 1705 | struct xfs_mount_args *args; |
c962fb79 | 1706 | int flags = 0, error = ENOMEM; |
1da177e4 | 1707 | |
bdd907ba CH |
1708 | args = xfs_args_allocate(sb, silent); |
1709 | if (!args) | |
1710 | return -ENOMEM; | |
1711 | ||
c962fb79 CH |
1712 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
1713 | if (!mp) | |
1714 | goto out_free_args; | |
1da177e4 | 1715 | |
c962fb79 CH |
1716 | spin_lock_init(&mp->m_sb_lock); |
1717 | mutex_init(&mp->m_ilock); | |
1718 | mutex_init(&mp->m_growlock); | |
1719 | atomic_set(&mp->m_active_trans, 0); | |
74394496 CH |
1720 | INIT_LIST_HEAD(&mp->m_sync_list); |
1721 | spin_lock_init(&mp->m_sync_lock); | |
1722 | init_waitqueue_head(&mp->m_wait_single_sync_task); | |
1723 | ||
b267ce99 CH |
1724 | mp->m_super = sb; |
1725 | sb->s_fs_info = mp; | |
1da177e4 | 1726 | |
bd186aa9 CH |
1727 | if (sb->s_flags & MS_RDONLY) |
1728 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1729 | ||
745f6919 CH |
1730 | error = xfs_parseargs(mp, (char *)data, args, 0); |
1731 | if (error) | |
c962fb79 | 1732 | goto out_free_mp; |
1da177e4 LT |
1733 | |
1734 | sb_min_blocksize(sb, BBSIZE); | |
0ec58516 | 1735 | sb->s_xattr = xfs_xattr_handlers; |
a50cd269 | 1736 | sb->s_export_op = &xfs_export_operations; |
a50cd269 NS |
1737 | sb->s_qcop = &xfs_quotactl_operations; |
1738 | sb->s_op = &xfs_super_operations; | |
1da177e4 | 1739 | |
f8f15e42 CH |
1740 | error = xfs_dmops_get(mp, args); |
1741 | if (error) | |
c962fb79 | 1742 | goto out_free_mp; |
f8f15e42 | 1743 | error = xfs_qmops_get(mp, args); |
745f6919 | 1744 | if (error) |
19f354d4 | 1745 | goto out_put_dmops; |
1da177e4 | 1746 | |
f8f15e42 CH |
1747 | if (args->flags & XFSMNT_QUIET) |
1748 | flags |= XFS_MFSI_QUIET; | |
1749 | ||
19f354d4 CH |
1750 | error = xfs_open_devices(mp, args); |
1751 | if (error) | |
1752 | goto out_put_qmops; | |
f8f15e42 | 1753 | |
c962fb79 CH |
1754 | if (xfs_icsb_init_counters(mp)) |
1755 | mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB; | |
1756 | ||
f8f15e42 CH |
1757 | /* |
1758 | * Setup flags based on mount(2) options and then the superblock | |
1759 | */ | |
1760 | error = xfs_start_flags(args, mp); | |
1761 | if (error) | |
a738159d | 1762 | goto out_free_fsname; |
f8f15e42 CH |
1763 | error = xfs_readsb(mp, flags); |
1764 | if (error) | |
a738159d | 1765 | goto out_free_fsname; |
f8f15e42 CH |
1766 | error = xfs_finish_flags(args, mp); |
1767 | if (error) | |
effa2eda | 1768 | goto out_free_sb; |
f8f15e42 | 1769 | |
e34b562c | 1770 | error = xfs_setup_devices(mp); |
19f354d4 | 1771 | if (error) |
effa2eda | 1772 | goto out_free_sb; |
f8f15e42 CH |
1773 | |
1774 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1775 | xfs_mountfs_check_barriers(mp); | |
1776 | ||
1777 | error = xfs_filestream_mount(mp); | |
1778 | if (error) | |
effa2eda | 1779 | goto out_free_sb; |
f8f15e42 | 1780 | |
4249023a | 1781 | error = xfs_mountfs(mp); |
f8f15e42 | 1782 | if (error) |
120226c1 | 1783 | goto out_filestream_unmount; |
f8f15e42 CH |
1784 | |
1785 | XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname); | |
1786 | ||
1da177e4 | 1787 | sb->s_dirt = 1; |
4ca488eb CH |
1788 | sb->s_magic = XFS_SB_MAGIC; |
1789 | sb->s_blocksize = mp->m_sb.sb_blocksize; | |
1790 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; | |
1da177e4 LT |
1791 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
1792 | sb->s_time_gran = 1; | |
1793 | set_posix_acl_flag(sb); | |
1794 | ||
01651646 | 1795 | root = igrab(VFS_I(mp->m_rootip)); |
f3dcc13f | 1796 | if (!root) { |
cbc89dcf | 1797 | error = ENOENT; |
1da177e4 | 1798 | goto fail_unmount; |
cbc89dcf | 1799 | } |
f3dcc13f CH |
1800 | if (is_bad_inode(root)) { |
1801 | error = EINVAL; | |
1da177e4 LT |
1802 | goto fail_vnrele; |
1803 | } | |
f3dcc13f CH |
1804 | sb->s_root = d_alloc_root(root); |
1805 | if (!sb->s_root) { | |
1806 | error = ENOMEM; | |
1da177e4 LT |
1807 | goto fail_vnrele; |
1808 | } | |
74394496 CH |
1809 | |
1810 | mp->m_sync_work.w_syncer = xfs_sync_worker; | |
1811 | mp->m_sync_work.w_mount = mp; | |
1812 | mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd"); | |
1813 | if (IS_ERR(mp->m_sync_task)) { | |
1814 | error = -PTR_ERR(mp->m_sync_task); | |
1da177e4 | 1815 | goto fail_vnrele; |
74394496 CH |
1816 | } |
1817 | ||
cf441eeb | 1818 | xfs_itrace_exit(XFS_I(sb->s_root->d_inode)); |
1da177e4 | 1819 | |
bdd907ba | 1820 | kfree(args); |
1da177e4 LT |
1821 | return 0; |
1822 | ||
120226c1 CH |
1823 | out_filestream_unmount: |
1824 | xfs_filestream_unmount(mp); | |
effa2eda CH |
1825 | out_free_sb: |
1826 | xfs_freesb(mp); | |
a738159d CH |
1827 | out_free_fsname: |
1828 | xfs_free_fsname(mp); | |
c962fb79 | 1829 | xfs_icsb_destroy_counters(mp); |
19f354d4 CH |
1830 | xfs_close_devices(mp); |
1831 | out_put_qmops: | |
f8f15e42 | 1832 | xfs_qmops_put(mp); |
19f354d4 | 1833 | out_put_dmops: |
f8f15e42 | 1834 | xfs_dmops_put(mp); |
c962fb79 CH |
1835 | out_free_mp: |
1836 | kfree(mp); | |
1837 | out_free_args: | |
1838 | kfree(args); | |
1839 | return -error; | |
f8f15e42 CH |
1840 | |
1841 | fail_vnrele: | |
1da177e4 LT |
1842 | if (sb->s_root) { |
1843 | dput(sb->s_root); | |
1844 | sb->s_root = NULL; | |
1845 | } else { | |
f3dcc13f | 1846 | iput(root); |
1da177e4 LT |
1847 | } |
1848 | ||
f8f15e42 | 1849 | fail_unmount: |
e48ad316 CH |
1850 | /* |
1851 | * Blow away any referenced inode in the filestreams cache. | |
1852 | * This can and will cause log traffic as inodes go inactive | |
1853 | * here. | |
1854 | */ | |
1855 | xfs_filestream_unmount(mp); | |
1856 | ||
1857 | XFS_bflush(mp->m_ddev_targp); | |
1858 | error = xfs_unmount_flush(mp, 0); | |
1859 | WARN_ON(error); | |
1860 | ||
19f354d4 | 1861 | xfs_unmountfs(mp); |
6203300e | 1862 | goto out_free_sb; |
1da177e4 LT |
1863 | } |
1864 | ||
454e2398 | 1865 | STATIC int |
a50cd269 | 1866 | xfs_fs_get_sb( |
1da177e4 LT |
1867 | struct file_system_type *fs_type, |
1868 | int flags, | |
1869 | const char *dev_name, | |
454e2398 DH |
1870 | void *data, |
1871 | struct vfsmount *mnt) | |
1da177e4 | 1872 | { |
454e2398 DH |
1873 | return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super, |
1874 | mnt); | |
a50cd269 NS |
1875 | } |
1876 | ||
7989cb8e | 1877 | static struct super_operations xfs_super_operations = { |
a50cd269 NS |
1878 | .alloc_inode = xfs_fs_alloc_inode, |
1879 | .destroy_inode = xfs_fs_destroy_inode, | |
1880 | .write_inode = xfs_fs_write_inode, | |
1881 | .clear_inode = xfs_fs_clear_inode, | |
1882 | .put_super = xfs_fs_put_super, | |
1883 | .write_super = xfs_fs_write_super, | |
1884 | .sync_fs = xfs_fs_sync_super, | |
1885 | .write_super_lockfs = xfs_fs_lockfs, | |
1886 | .statfs = xfs_fs_statfs, | |
1887 | .remount_fs = xfs_fs_remount, | |
1888 | .show_options = xfs_fs_show_options, | |
1da177e4 LT |
1889 | }; |
1890 | ||
7989cb8e | 1891 | static struct quotactl_ops xfs_quotactl_operations = { |
a50cd269 NS |
1892 | .quota_sync = xfs_fs_quotasync, |
1893 | .get_xstate = xfs_fs_getxstate, | |
1894 | .set_xstate = xfs_fs_setxstate, | |
1895 | .get_xquota = xfs_fs_getxquota, | |
1896 | .set_xquota = xfs_fs_setxquota, | |
1da177e4 LT |
1897 | }; |
1898 | ||
5085b607 | 1899 | static struct file_system_type xfs_fs_type = { |
1da177e4 LT |
1900 | .owner = THIS_MODULE, |
1901 | .name = "xfs", | |
a50cd269 | 1902 | .get_sb = xfs_fs_get_sb, |
1da177e4 LT |
1903 | .kill_sb = kill_block_super, |
1904 | .fs_flags = FS_REQUIRES_DEV, | |
1905 | }; | |
1906 | ||
9f8868ff CH |
1907 | STATIC int __init |
1908 | xfs_alloc_trace_bufs(void) | |
1909 | { | |
1910 | #ifdef XFS_ALLOC_TRACE | |
1911 | xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_MAYFAIL); | |
1912 | if (!xfs_alloc_trace_buf) | |
1913 | goto out; | |
1914 | #endif | |
1915 | #ifdef XFS_BMAP_TRACE | |
1916 | xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_MAYFAIL); | |
1917 | if (!xfs_bmap_trace_buf) | |
1918 | goto out_free_alloc_trace; | |
1919 | #endif | |
8c4ed633 CH |
1920 | #ifdef XFS_BTREE_TRACE |
1921 | xfs_allocbt_trace_buf = ktrace_alloc(XFS_ALLOCBT_TRACE_SIZE, | |
1922 | KM_MAYFAIL); | |
1923 | if (!xfs_allocbt_trace_buf) | |
1924 | goto out_free_bmap_trace; | |
1925 | ||
1926 | xfs_inobt_trace_buf = ktrace_alloc(XFS_INOBT_TRACE_SIZE, KM_MAYFAIL); | |
1927 | if (!xfs_inobt_trace_buf) | |
1928 | goto out_free_allocbt_trace; | |
1929 | ||
9f8868ff CH |
1930 | xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_MAYFAIL); |
1931 | if (!xfs_bmbt_trace_buf) | |
8c4ed633 | 1932 | goto out_free_inobt_trace; |
9f8868ff CH |
1933 | #endif |
1934 | #ifdef XFS_ATTR_TRACE | |
1935 | xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_MAYFAIL); | |
1936 | if (!xfs_attr_trace_buf) | |
1937 | goto out_free_bmbt_trace; | |
1938 | #endif | |
1939 | #ifdef XFS_DIR2_TRACE | |
1940 | xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_MAYFAIL); | |
1941 | if (!xfs_dir2_trace_buf) | |
1942 | goto out_free_attr_trace; | |
1943 | #endif | |
1944 | ||
1945 | return 0; | |
1946 | ||
1947 | #ifdef XFS_DIR2_TRACE | |
1948 | out_free_attr_trace: | |
1949 | #endif | |
1950 | #ifdef XFS_ATTR_TRACE | |
1951 | ktrace_free(xfs_attr_trace_buf); | |
1952 | out_free_bmbt_trace: | |
1953 | #endif | |
8c4ed633 | 1954 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1955 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1956 | out_free_inobt_trace: |
1957 | ktrace_free(xfs_inobt_trace_buf); | |
1958 | out_free_allocbt_trace: | |
1959 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1960 | out_free_bmap_trace: |
1961 | #endif | |
1962 | #ifdef XFS_BMAP_TRACE | |
1963 | ktrace_free(xfs_bmap_trace_buf); | |
1964 | out_free_alloc_trace: | |
1965 | #endif | |
1966 | #ifdef XFS_ALLOC_TRACE | |
1967 | ktrace_free(xfs_alloc_trace_buf); | |
1968 | out: | |
1969 | #endif | |
1970 | return -ENOMEM; | |
1971 | } | |
1972 | ||
1973 | STATIC void | |
1974 | xfs_free_trace_bufs(void) | |
1975 | { | |
1976 | #ifdef XFS_DIR2_TRACE | |
1977 | ktrace_free(xfs_dir2_trace_buf); | |
1978 | #endif | |
1979 | #ifdef XFS_ATTR_TRACE | |
1980 | ktrace_free(xfs_attr_trace_buf); | |
1981 | #endif | |
8c4ed633 | 1982 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1983 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1984 | ktrace_free(xfs_inobt_trace_buf); |
1985 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1986 | #endif |
1987 | #ifdef XFS_BMAP_TRACE | |
1988 | ktrace_free(xfs_bmap_trace_buf); | |
1989 | #endif | |
1990 | #ifdef XFS_ALLOC_TRACE | |
1991 | ktrace_free(xfs_alloc_trace_buf); | |
1992 | #endif | |
1993 | } | |
1994 | ||
1995 | STATIC int __init | |
1996 | xfs_init_zones(void) | |
1997 | { | |
5ec7f8c7 | 1998 | xfs_vnode_zone = kmem_zone_init_flags(sizeof(struct inode), "xfs_vnode", |
9f8868ff CH |
1999 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | |
2000 | KM_ZONE_SPREAD, | |
2001 | xfs_fs_inode_init_once); | |
2002 | if (!xfs_vnode_zone) | |
2003 | goto out; | |
2004 | ||
2005 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); | |
2006 | if (!xfs_ioend_zone) | |
2007 | goto out_destroy_vnode_zone; | |
2008 | ||
2009 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, | |
2010 | xfs_ioend_zone); | |
2011 | if (!xfs_ioend_pool) | |
2012 | goto out_destroy_ioend_zone; | |
2013 | ||
2014 | xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t), | |
2015 | "xfs_log_ticket"); | |
2016 | if (!xfs_log_ticket_zone) | |
2017 | goto out_destroy_ioend_pool; | |
2018 | ||
2019 | xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t), | |
2020 | "xfs_bmap_free_item"); | |
2021 | if (!xfs_bmap_free_item_zone) | |
2022 | goto out_destroy_log_ticket_zone; | |
2023 | xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t), | |
2024 | "xfs_btree_cur"); | |
2025 | if (!xfs_btree_cur_zone) | |
2026 | goto out_destroy_bmap_free_item_zone; | |
2027 | ||
2028 | xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t), | |
2029 | "xfs_da_state"); | |
2030 | if (!xfs_da_state_zone) | |
2031 | goto out_destroy_btree_cur_zone; | |
2032 | ||
2033 | xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf"); | |
2034 | if (!xfs_dabuf_zone) | |
2035 | goto out_destroy_da_state_zone; | |
2036 | ||
2037 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); | |
2038 | if (!xfs_ifork_zone) | |
2039 | goto out_destroy_dabuf_zone; | |
2040 | ||
2041 | xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans"); | |
2042 | if (!xfs_trans_zone) | |
2043 | goto out_destroy_ifork_zone; | |
2044 | ||
2045 | /* | |
2046 | * The size of the zone allocated buf log item is the maximum | |
2047 | * size possible under XFS. This wastes a little bit of memory, | |
2048 | * but it is much faster. | |
2049 | */ | |
2050 | xfs_buf_item_zone = kmem_zone_init((sizeof(xfs_buf_log_item_t) + | |
2051 | (((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) / | |
2052 | NBWORD) * sizeof(int))), "xfs_buf_item"); | |
2053 | if (!xfs_buf_item_zone) | |
2054 | goto out_destroy_trans_zone; | |
2055 | ||
2056 | xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) + | |
2057 | ((XFS_EFD_MAX_FAST_EXTENTS - 1) * | |
2058 | sizeof(xfs_extent_t))), "xfs_efd_item"); | |
2059 | if (!xfs_efd_zone) | |
2060 | goto out_destroy_buf_item_zone; | |
2061 | ||
2062 | xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) + | |
2063 | ((XFS_EFI_MAX_FAST_EXTENTS - 1) * | |
2064 | sizeof(xfs_extent_t))), "xfs_efi_item"); | |
2065 | if (!xfs_efi_zone) | |
2066 | goto out_destroy_efd_zone; | |
2067 | ||
2068 | xfs_inode_zone = | |
2069 | kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode", | |
2070 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | | |
07c8f675 | 2071 | KM_ZONE_SPREAD, xfs_inode_init_once); |
9f8868ff CH |
2072 | if (!xfs_inode_zone) |
2073 | goto out_destroy_efi_zone; | |
2074 | ||
2075 | xfs_ili_zone = | |
2076 | kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili", | |
2077 | KM_ZONE_SPREAD, NULL); | |
2078 | if (!xfs_ili_zone) | |
2079 | goto out_destroy_inode_zone; | |
2080 | ||
2081 | #ifdef CONFIG_XFS_POSIX_ACL | |
2082 | xfs_acl_zone = kmem_zone_init(sizeof(xfs_acl_t), "xfs_acl"); | |
2083 | if (!xfs_acl_zone) | |
2084 | goto out_destroy_ili_zone; | |
2085 | #endif | |
2086 | ||
2087 | return 0; | |
2088 | ||
2089 | #ifdef CONFIG_XFS_POSIX_ACL | |
2090 | out_destroy_ili_zone: | |
2091 | #endif | |
2092 | kmem_zone_destroy(xfs_ili_zone); | |
2093 | out_destroy_inode_zone: | |
2094 | kmem_zone_destroy(xfs_inode_zone); | |
2095 | out_destroy_efi_zone: | |
2096 | kmem_zone_destroy(xfs_efi_zone); | |
2097 | out_destroy_efd_zone: | |
2098 | kmem_zone_destroy(xfs_efd_zone); | |
2099 | out_destroy_buf_item_zone: | |
2100 | kmem_zone_destroy(xfs_buf_item_zone); | |
2101 | out_destroy_trans_zone: | |
2102 | kmem_zone_destroy(xfs_trans_zone); | |
2103 | out_destroy_ifork_zone: | |
2104 | kmem_zone_destroy(xfs_ifork_zone); | |
2105 | out_destroy_dabuf_zone: | |
2106 | kmem_zone_destroy(xfs_dabuf_zone); | |
2107 | out_destroy_da_state_zone: | |
2108 | kmem_zone_destroy(xfs_da_state_zone); | |
2109 | out_destroy_btree_cur_zone: | |
2110 | kmem_zone_destroy(xfs_btree_cur_zone); | |
2111 | out_destroy_bmap_free_item_zone: | |
2112 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
2113 | out_destroy_log_ticket_zone: | |
2114 | kmem_zone_destroy(xfs_log_ticket_zone); | |
2115 | out_destroy_ioend_pool: | |
2116 | mempool_destroy(xfs_ioend_pool); | |
2117 | out_destroy_ioend_zone: | |
2118 | kmem_zone_destroy(xfs_ioend_zone); | |
2119 | out_destroy_vnode_zone: | |
2120 | kmem_zone_destroy(xfs_vnode_zone); | |
2121 | out: | |
2122 | return -ENOMEM; | |
2123 | } | |
2124 | ||
2125 | STATIC void | |
2126 | xfs_destroy_zones(void) | |
2127 | { | |
2128 | #ifdef CONFIG_XFS_POSIX_ACL | |
2129 | kmem_zone_destroy(xfs_acl_zone); | |
2130 | #endif | |
2131 | kmem_zone_destroy(xfs_ili_zone); | |
2132 | kmem_zone_destroy(xfs_inode_zone); | |
2133 | kmem_zone_destroy(xfs_efi_zone); | |
2134 | kmem_zone_destroy(xfs_efd_zone); | |
2135 | kmem_zone_destroy(xfs_buf_item_zone); | |
2136 | kmem_zone_destroy(xfs_trans_zone); | |
2137 | kmem_zone_destroy(xfs_ifork_zone); | |
2138 | kmem_zone_destroy(xfs_dabuf_zone); | |
2139 | kmem_zone_destroy(xfs_da_state_zone); | |
2140 | kmem_zone_destroy(xfs_btree_cur_zone); | |
2141 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
2142 | kmem_zone_destroy(xfs_log_ticket_zone); | |
2143 | mempool_destroy(xfs_ioend_pool); | |
2144 | kmem_zone_destroy(xfs_ioend_zone); | |
2145 | kmem_zone_destroy(xfs_vnode_zone); | |
2146 | ||
2147 | } | |
1da177e4 LT |
2148 | |
2149 | STATIC int __init | |
9f8868ff | 2150 | init_xfs_fs(void) |
1da177e4 LT |
2151 | { |
2152 | int error; | |
1da177e4 LT |
2153 | static char message[] __initdata = KERN_INFO \ |
2154 | XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n"; | |
2155 | ||
2156 | printk(message); | |
2157 | ||
1da177e4 | 2158 | ktrace_init(64); |
9f8868ff CH |
2159 | vn_init(); |
2160 | xfs_dir_startup(); | |
1da177e4 | 2161 | |
8758280f | 2162 | error = xfs_init_zones(); |
9f8868ff CH |
2163 | if (error) |
2164 | goto out; | |
2165 | ||
2166 | error = xfs_alloc_trace_bufs(); | |
2167 | if (error) | |
2168 | goto out_destroy_zones; | |
2169 | ||
2170 | error = xfs_mru_cache_init(); | |
2171 | if (error) | |
2172 | goto out_free_trace_buffers; | |
2173 | ||
2174 | error = xfs_filestream_init(); | |
2175 | if (error) | |
2176 | goto out_mru_cache_uninit; | |
1da177e4 | 2177 | |
ce8e922c | 2178 | error = xfs_buf_init(); |
9f8868ff CH |
2179 | if (error) |
2180 | goto out_filestream_uninit; | |
2181 | ||
2182 | error = xfs_init_procfs(); | |
2183 | if (error) | |
2184 | goto out_buf_terminate; | |
2185 | ||
2186 | error = xfs_sysctl_register(); | |
2187 | if (error) | |
2188 | goto out_cleanup_procfs; | |
1da177e4 | 2189 | |
1da177e4 LT |
2190 | vfs_initquota(); |
2191 | ||
2192 | error = register_filesystem(&xfs_fs_type); | |
2193 | if (error) | |
9f8868ff | 2194 | goto out_sysctl_unregister; |
1da177e4 LT |
2195 | return 0; |
2196 | ||
9f8868ff CH |
2197 | out_sysctl_unregister: |
2198 | xfs_sysctl_unregister(); | |
2199 | out_cleanup_procfs: | |
2200 | xfs_cleanup_procfs(); | |
2201 | out_buf_terminate: | |
ce8e922c | 2202 | xfs_buf_terminate(); |
9f8868ff CH |
2203 | out_filestream_uninit: |
2204 | xfs_filestream_uninit(); | |
2205 | out_mru_cache_uninit: | |
2206 | xfs_mru_cache_uninit(); | |
2207 | out_free_trace_buffers: | |
2208 | xfs_free_trace_bufs(); | |
2209 | out_destroy_zones: | |
8758280f | 2210 | xfs_destroy_zones(); |
9f8868ff | 2211 | out: |
1da177e4 LT |
2212 | return error; |
2213 | } | |
2214 | ||
2215 | STATIC void __exit | |
9f8868ff | 2216 | exit_xfs_fs(void) |
1da177e4 LT |
2217 | { |
2218 | vfs_exitquota(); | |
1da177e4 | 2219 | unregister_filesystem(&xfs_fs_type); |
9f8868ff CH |
2220 | xfs_sysctl_unregister(); |
2221 | xfs_cleanup_procfs(); | |
ce8e922c | 2222 | xfs_buf_terminate(); |
9f8868ff CH |
2223 | xfs_filestream_uninit(); |
2224 | xfs_mru_cache_uninit(); | |
2225 | xfs_free_trace_bufs(); | |
8758280f | 2226 | xfs_destroy_zones(); |
1da177e4 LT |
2227 | ktrace_uninit(); |
2228 | } | |
2229 | ||
2230 | module_init(init_xfs_fs); | |
2231 | module_exit(exit_xfs_fs); | |
2232 | ||
2233 | MODULE_AUTHOR("Silicon Graphics, Inc."); | |
2234 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); | |
2235 | MODULE_LICENSE("GPL"); |