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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 NS |
38 | #include "xfs_btree.h" |
39 | #include "xfs_ialloc.h" | |
1da177e4 | 40 | #include "xfs_bmap.h" |
1da177e4 LT |
41 | #include "xfs_rtalloc.h" |
42 | #include "xfs_error.h" | |
43 | #include "xfs_itable.h" | |
9909c4aa | 44 | #include "xfs_fsops.h" |
1da177e4 LT |
45 | #include "xfs_rw.h" |
46 | #include "xfs_acl.h" | |
1da177e4 LT |
47 | #include "xfs_attr.h" |
48 | #include "xfs_buf_item.h" | |
49 | #include "xfs_utils.h" | |
739bfb2a | 50 | #include "xfs_vnodeops.h" |
745f6919 | 51 | #include "xfs_vfsops.h" |
1da177e4 | 52 | #include "xfs_version.h" |
a67d7c5f | 53 | #include "xfs_log_priv.h" |
249a8c11 | 54 | #include "xfs_trans_priv.h" |
48b62a1a | 55 | #include "xfs_filestream.h" |
1da177e4 LT |
56 | |
57 | #include <linux/namei.h> | |
58 | #include <linux/init.h> | |
59 | #include <linux/mount.h> | |
0829c360 | 60 | #include <linux/mempool.h> |
1da177e4 | 61 | #include <linux/writeback.h> |
4df08c52 | 62 | #include <linux/kthread.h> |
7dfb7103 | 63 | #include <linux/freezer.h> |
1da177e4 | 64 | |
7989cb8e DC |
65 | static struct quotactl_ops xfs_quotactl_operations; |
66 | static struct super_operations xfs_super_operations; | |
67 | static kmem_zone_t *xfs_vnode_zone; | |
68 | static kmem_zone_t *xfs_ioend_zone; | |
0829c360 | 69 | mempool_t *xfs_ioend_pool; |
1da177e4 LT |
70 | |
71 | STATIC struct xfs_mount_args * | |
72 | xfs_args_allocate( | |
764d1f89 NS |
73 | struct super_block *sb, |
74 | int silent) | |
1da177e4 LT |
75 | { |
76 | struct xfs_mount_args *args; | |
77 | ||
bdd907ba CH |
78 | args = kzalloc(sizeof(struct xfs_mount_args), GFP_KERNEL); |
79 | if (!args) | |
80 | return NULL; | |
81 | ||
1da177e4 LT |
82 | args->logbufs = args->logbufsize = -1; |
83 | strncpy(args->fsname, sb->s_id, MAXNAMELEN); | |
84 | ||
85 | /* Copy the already-parsed mount(2) flags we're interested in */ | |
1da177e4 LT |
86 | if (sb->s_flags & MS_DIRSYNC) |
87 | args->flags |= XFSMNT_DIRSYNC; | |
88 | if (sb->s_flags & MS_SYNCHRONOUS) | |
89 | args->flags |= XFSMNT_WSYNC; | |
764d1f89 NS |
90 | if (silent) |
91 | args->flags |= XFSMNT_QUIET; | |
1da177e4 LT |
92 | args->flags |= XFSMNT_32BITINODES; |
93 | ||
94 | return args; | |
95 | } | |
96 | ||
a67d7c5f DC |
97 | #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ |
98 | #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ | |
99 | #define MNTOPT_LOGDEV "logdev" /* log device */ | |
100 | #define MNTOPT_RTDEV "rtdev" /* realtime I/O device */ | |
101 | #define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */ | |
102 | #define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */ | |
103 | #define MNTOPT_INO64 "ino64" /* force inodes into 64-bit range */ | |
104 | #define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */ | |
105 | #define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */ | |
106 | #define MNTOPT_SUNIT "sunit" /* data volume stripe unit */ | |
107 | #define MNTOPT_SWIDTH "swidth" /* data volume stripe width */ | |
108 | #define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */ | |
109 | #define MNTOPT_MTPT "mtpt" /* filesystem mount point */ | |
110 | #define MNTOPT_GRPID "grpid" /* group-ID from parent directory */ | |
111 | #define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */ | |
112 | #define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */ | |
113 | #define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */ | |
114 | #define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */ | |
115 | #define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */ | |
116 | #define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and | |
117 | * unwritten extent conversion */ | |
118 | #define MNTOPT_NOBARRIER "nobarrier" /* .. disable */ | |
119 | #define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */ | |
120 | #define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */ | |
121 | #define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */ | |
122 | #define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */ | |
123 | #define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */ | |
124 | #define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes | |
125 | * in stat(). */ | |
126 | #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ | |
127 | #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ | |
128 | #define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */ | |
129 | #define MNTOPT_QUOTA "quota" /* disk quotas (user) */ | |
130 | #define MNTOPT_NOQUOTA "noquota" /* no quotas */ | |
131 | #define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */ | |
132 | #define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */ | |
133 | #define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */ | |
134 | #define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */ | |
135 | #define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */ | |
136 | #define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */ | |
137 | #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */ | |
138 | #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */ | |
139 | #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */ | |
140 | #define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */ | |
141 | #define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */ | |
142 | #define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */ | |
143 | #define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */ | |
144 | ||
145 | STATIC unsigned long | |
146 | suffix_strtoul(char *s, char **endp, unsigned int base) | |
147 | { | |
148 | int last, shift_left_factor = 0; | |
149 | char *value = s; | |
150 | ||
151 | last = strlen(value) - 1; | |
152 | if (value[last] == 'K' || value[last] == 'k') { | |
153 | shift_left_factor = 10; | |
154 | value[last] = '\0'; | |
155 | } | |
156 | if (value[last] == 'M' || value[last] == 'm') { | |
157 | shift_left_factor = 20; | |
158 | value[last] = '\0'; | |
159 | } | |
160 | if (value[last] == 'G' || value[last] == 'g') { | |
161 | shift_left_factor = 30; | |
162 | value[last] = '\0'; | |
163 | } | |
164 | ||
165 | return simple_strtoul((const char *)s, endp, base) << shift_left_factor; | |
166 | } | |
167 | ||
168 | STATIC int | |
169 | xfs_parseargs( | |
170 | struct xfs_mount *mp, | |
171 | char *options, | |
172 | struct xfs_mount_args *args, | |
173 | int update) | |
174 | { | |
175 | char *this_char, *value, *eov; | |
176 | int dsunit, dswidth, vol_dsunit, vol_dswidth; | |
177 | int iosize; | |
1bd960ee | 178 | int dmapi_implies_ikeep = 1; |
a67d7c5f DC |
179 | |
180 | args->flags |= XFSMNT_BARRIER; | |
181 | args->flags2 |= XFSMNT2_COMPAT_IOSIZE; | |
182 | ||
183 | if (!options) | |
184 | goto done; | |
185 | ||
186 | iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0; | |
187 | ||
188 | while ((this_char = strsep(&options, ",")) != NULL) { | |
189 | if (!*this_char) | |
190 | continue; | |
191 | if ((value = strchr(this_char, '=')) != NULL) | |
192 | *value++ = 0; | |
193 | ||
194 | if (!strcmp(this_char, MNTOPT_LOGBUFS)) { | |
195 | if (!value || !*value) { | |
196 | cmn_err(CE_WARN, | |
197 | "XFS: %s option requires an argument", | |
198 | this_char); | |
199 | return EINVAL; | |
200 | } | |
201 | args->logbufs = simple_strtoul(value, &eov, 10); | |
202 | } else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) { | |
203 | if (!value || !*value) { | |
204 | cmn_err(CE_WARN, | |
205 | "XFS: %s option requires an argument", | |
206 | this_char); | |
207 | return EINVAL; | |
208 | } | |
209 | args->logbufsize = suffix_strtoul(value, &eov, 10); | |
210 | } else if (!strcmp(this_char, MNTOPT_LOGDEV)) { | |
211 | if (!value || !*value) { | |
212 | cmn_err(CE_WARN, | |
213 | "XFS: %s option requires an argument", | |
214 | this_char); | |
215 | return EINVAL; | |
216 | } | |
217 | strncpy(args->logname, value, MAXNAMELEN); | |
218 | } else if (!strcmp(this_char, MNTOPT_MTPT)) { | |
219 | if (!value || !*value) { | |
220 | cmn_err(CE_WARN, | |
221 | "XFS: %s option requires an argument", | |
222 | this_char); | |
223 | return EINVAL; | |
224 | } | |
225 | strncpy(args->mtpt, value, MAXNAMELEN); | |
226 | } else if (!strcmp(this_char, MNTOPT_RTDEV)) { | |
227 | if (!value || !*value) { | |
228 | cmn_err(CE_WARN, | |
229 | "XFS: %s option requires an argument", | |
230 | this_char); | |
231 | return EINVAL; | |
232 | } | |
233 | strncpy(args->rtname, value, MAXNAMELEN); | |
234 | } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) { | |
235 | if (!value || !*value) { | |
236 | cmn_err(CE_WARN, | |
237 | "XFS: %s option requires an argument", | |
238 | this_char); | |
239 | return EINVAL; | |
240 | } | |
241 | iosize = simple_strtoul(value, &eov, 10); | |
242 | args->flags |= XFSMNT_IOSIZE; | |
243 | args->iosizelog = (uint8_t) iosize; | |
244 | } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) { | |
245 | if (!value || !*value) { | |
246 | cmn_err(CE_WARN, | |
247 | "XFS: %s option requires an argument", | |
248 | this_char); | |
249 | return EINVAL; | |
250 | } | |
251 | iosize = suffix_strtoul(value, &eov, 10); | |
252 | args->flags |= XFSMNT_IOSIZE; | |
253 | args->iosizelog = ffs(iosize) - 1; | |
254 | } else if (!strcmp(this_char, MNTOPT_GRPID) || | |
255 | !strcmp(this_char, MNTOPT_BSDGROUPS)) { | |
256 | mp->m_flags |= XFS_MOUNT_GRPID; | |
257 | } else if (!strcmp(this_char, MNTOPT_NOGRPID) || | |
258 | !strcmp(this_char, MNTOPT_SYSVGROUPS)) { | |
259 | mp->m_flags &= ~XFS_MOUNT_GRPID; | |
260 | } else if (!strcmp(this_char, MNTOPT_WSYNC)) { | |
261 | args->flags |= XFSMNT_WSYNC; | |
262 | } else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) { | |
263 | args->flags |= XFSMNT_OSYNCISOSYNC; | |
264 | } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) { | |
265 | args->flags |= XFSMNT_NORECOVERY; | |
266 | } else if (!strcmp(this_char, MNTOPT_INO64)) { | |
267 | args->flags |= XFSMNT_INO64; | |
268 | #if !XFS_BIG_INUMS | |
269 | cmn_err(CE_WARN, | |
270 | "XFS: %s option not allowed on this system", | |
271 | this_char); | |
272 | return EINVAL; | |
273 | #endif | |
274 | } else if (!strcmp(this_char, MNTOPT_NOALIGN)) { | |
275 | args->flags |= XFSMNT_NOALIGN; | |
276 | } else if (!strcmp(this_char, MNTOPT_SWALLOC)) { | |
277 | args->flags |= XFSMNT_SWALLOC; | |
278 | } else if (!strcmp(this_char, MNTOPT_SUNIT)) { | |
279 | if (!value || !*value) { | |
280 | cmn_err(CE_WARN, | |
281 | "XFS: %s option requires an argument", | |
282 | this_char); | |
283 | return EINVAL; | |
284 | } | |
285 | dsunit = simple_strtoul(value, &eov, 10); | |
286 | } else if (!strcmp(this_char, MNTOPT_SWIDTH)) { | |
287 | if (!value || !*value) { | |
288 | cmn_err(CE_WARN, | |
289 | "XFS: %s option requires an argument", | |
290 | this_char); | |
291 | return EINVAL; | |
292 | } | |
293 | dswidth = simple_strtoul(value, &eov, 10); | |
294 | } else if (!strcmp(this_char, MNTOPT_64BITINODE)) { | |
295 | args->flags &= ~XFSMNT_32BITINODES; | |
296 | #if !XFS_BIG_INUMS | |
297 | cmn_err(CE_WARN, | |
298 | "XFS: %s option not allowed on this system", | |
299 | this_char); | |
300 | return EINVAL; | |
301 | #endif | |
302 | } else if (!strcmp(this_char, MNTOPT_NOUUID)) { | |
303 | args->flags |= XFSMNT_NOUUID; | |
304 | } else if (!strcmp(this_char, MNTOPT_BARRIER)) { | |
305 | args->flags |= XFSMNT_BARRIER; | |
306 | } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { | |
307 | args->flags &= ~XFSMNT_BARRIER; | |
308 | } else if (!strcmp(this_char, MNTOPT_IKEEP)) { | |
1bd960ee | 309 | args->flags |= XFSMNT_IKEEP; |
a67d7c5f | 310 | } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { |
1bd960ee JJS |
311 | dmapi_implies_ikeep = 0; |
312 | args->flags &= ~XFSMNT_IKEEP; | |
a67d7c5f DC |
313 | } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { |
314 | args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE; | |
315 | } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { | |
316 | args->flags2 |= XFSMNT2_COMPAT_IOSIZE; | |
317 | } else if (!strcmp(this_char, MNTOPT_ATTR2)) { | |
318 | args->flags |= XFSMNT_ATTR2; | |
319 | } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { | |
320 | args->flags &= ~XFSMNT_ATTR2; | |
7c12f296 | 321 | args->flags |= XFSMNT_NOATTR2; |
a67d7c5f DC |
322 | } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) { |
323 | args->flags2 |= XFSMNT2_FILESTREAMS; | |
324 | } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) { | |
325 | args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA); | |
326 | args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA); | |
327 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || | |
328 | !strcmp(this_char, MNTOPT_UQUOTA) || | |
329 | !strcmp(this_char, MNTOPT_USRQUOTA)) { | |
330 | args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF; | |
331 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || | |
332 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { | |
333 | args->flags |= XFSMNT_UQUOTA; | |
334 | args->flags &= ~XFSMNT_UQUOTAENF; | |
335 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || | |
336 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { | |
337 | args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF; | |
338 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { | |
339 | args->flags |= XFSMNT_PQUOTA; | |
340 | args->flags &= ~XFSMNT_PQUOTAENF; | |
341 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || | |
342 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { | |
343 | args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF; | |
344 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { | |
345 | args->flags |= XFSMNT_GQUOTA; | |
346 | args->flags &= ~XFSMNT_GQUOTAENF; | |
347 | } else if (!strcmp(this_char, MNTOPT_DMAPI)) { | |
348 | args->flags |= XFSMNT_DMAPI; | |
349 | } else if (!strcmp(this_char, MNTOPT_XDSM)) { | |
350 | args->flags |= XFSMNT_DMAPI; | |
351 | } else if (!strcmp(this_char, MNTOPT_DMI)) { | |
352 | args->flags |= XFSMNT_DMAPI; | |
353 | } else if (!strcmp(this_char, "ihashsize")) { | |
354 | cmn_err(CE_WARN, | |
355 | "XFS: ihashsize no longer used, option is deprecated."); | |
356 | } else if (!strcmp(this_char, "osyncisdsync")) { | |
357 | /* no-op, this is now the default */ | |
358 | cmn_err(CE_WARN, | |
359 | "XFS: osyncisdsync is now the default, option is deprecated."); | |
360 | } else if (!strcmp(this_char, "irixsgid")) { | |
361 | cmn_err(CE_WARN, | |
362 | "XFS: irixsgid is now a sysctl(2) variable, option is deprecated."); | |
363 | } else { | |
364 | cmn_err(CE_WARN, | |
365 | "XFS: unknown mount option [%s].", this_char); | |
366 | return EINVAL; | |
367 | } | |
368 | } | |
369 | ||
370 | if (args->flags & XFSMNT_NORECOVERY) { | |
371 | if ((mp->m_flags & XFS_MOUNT_RDONLY) == 0) { | |
372 | cmn_err(CE_WARN, | |
373 | "XFS: no-recovery mounts must be read-only."); | |
374 | return EINVAL; | |
375 | } | |
376 | } | |
377 | ||
378 | if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) { | |
379 | cmn_err(CE_WARN, | |
380 | "XFS: sunit and swidth options incompatible with the noalign option"); | |
381 | return EINVAL; | |
382 | } | |
383 | ||
384 | if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) { | |
385 | cmn_err(CE_WARN, | |
386 | "XFS: cannot mount with both project and group quota"); | |
387 | return EINVAL; | |
388 | } | |
389 | ||
390 | if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') { | |
391 | printk("XFS: %s option needs the mount point option as well\n", | |
392 | MNTOPT_DMAPI); | |
393 | return EINVAL; | |
394 | } | |
395 | ||
396 | if ((dsunit && !dswidth) || (!dsunit && dswidth)) { | |
397 | cmn_err(CE_WARN, | |
398 | "XFS: sunit and swidth must be specified together"); | |
399 | return EINVAL; | |
400 | } | |
401 | ||
402 | if (dsunit && (dswidth % dsunit != 0)) { | |
403 | cmn_err(CE_WARN, | |
404 | "XFS: stripe width (%d) must be a multiple of the stripe unit (%d)", | |
405 | dswidth, dsunit); | |
406 | return EINVAL; | |
407 | } | |
408 | ||
409 | /* | |
410 | * Applications using DMI filesystems often expect the | |
411 | * inode generation number to be monotonically increasing. | |
412 | * If we delete inode chunks we break this assumption, so | |
413 | * keep unused inode chunks on disk for DMI filesystems | |
414 | * until we come up with a better solution. | |
415 | * Note that if "ikeep" or "noikeep" mount options are | |
416 | * supplied, then they are honored. | |
417 | */ | |
1bd960ee JJS |
418 | if ((args->flags & XFSMNT_DMAPI) && dmapi_implies_ikeep) |
419 | args->flags |= XFSMNT_IKEEP; | |
a67d7c5f DC |
420 | |
421 | if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | |
422 | if (dsunit) { | |
423 | args->sunit = dsunit; | |
424 | args->flags |= XFSMNT_RETERR; | |
425 | } else { | |
426 | args->sunit = vol_dsunit; | |
427 | } | |
428 | dswidth ? (args->swidth = dswidth) : | |
429 | (args->swidth = vol_dswidth); | |
430 | } else { | |
431 | args->sunit = args->swidth = 0; | |
432 | } | |
433 | ||
434 | done: | |
435 | if (args->flags & XFSMNT_32BITINODES) | |
436 | mp->m_flags |= XFS_MOUNT_SMALL_INUMS; | |
437 | if (args->flags2) | |
438 | args->flags |= XFSMNT_FLAGS2; | |
439 | return 0; | |
440 | } | |
441 | ||
442 | struct proc_xfs_info { | |
443 | int flag; | |
444 | char *str; | |
445 | }; | |
446 | ||
447 | STATIC int | |
448 | xfs_showargs( | |
449 | struct xfs_mount *mp, | |
450 | struct seq_file *m) | |
451 | { | |
452 | static struct proc_xfs_info xfs_info_set[] = { | |
453 | /* the few simple ones we can get from the mount struct */ | |
1bd960ee | 454 | { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, |
a67d7c5f DC |
455 | { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, |
456 | { XFS_MOUNT_INO64, "," MNTOPT_INO64 }, | |
457 | { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, | |
458 | { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC }, | |
459 | { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, | |
460 | { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, | |
461 | { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC }, | |
462 | { XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 }, | |
463 | { XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM }, | |
464 | { XFS_MOUNT_DMAPI, "," MNTOPT_DMAPI }, | |
465 | { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, | |
466 | { 0, NULL } | |
467 | }; | |
468 | static struct proc_xfs_info xfs_info_unset[] = { | |
469 | /* the few simple ones we can get from the mount struct */ | |
a67d7c5f DC |
470 | { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, |
471 | { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, | |
472 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, | |
473 | { 0, NULL } | |
474 | }; | |
475 | struct proc_xfs_info *xfs_infop; | |
476 | ||
477 | for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) { | |
478 | if (mp->m_flags & xfs_infop->flag) | |
479 | seq_puts(m, xfs_infop->str); | |
480 | } | |
481 | for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) { | |
482 | if (!(mp->m_flags & xfs_infop->flag)) | |
483 | seq_puts(m, xfs_infop->str); | |
484 | } | |
485 | ||
486 | if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) | |
487 | seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk", | |
488 | (int)(1 << mp->m_writeio_log) >> 10); | |
489 | ||
490 | if (mp->m_logbufs > 0) | |
491 | seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs); | |
492 | if (mp->m_logbsize > 0) | |
493 | seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10); | |
494 | ||
495 | if (mp->m_logname) | |
496 | seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname); | |
497 | if (mp->m_rtname) | |
498 | seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname); | |
499 | ||
500 | if (mp->m_dalign > 0) | |
501 | seq_printf(m, "," MNTOPT_SUNIT "=%d", | |
502 | (int)XFS_FSB_TO_BB(mp, mp->m_dalign)); | |
503 | if (mp->m_swidth > 0) | |
504 | seq_printf(m, "," MNTOPT_SWIDTH "=%d", | |
505 | (int)XFS_FSB_TO_BB(mp, mp->m_swidth)); | |
506 | ||
507 | if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD)) | |
508 | seq_puts(m, "," MNTOPT_USRQUOTA); | |
509 | else if (mp->m_qflags & XFS_UQUOTA_ACCT) | |
510 | seq_puts(m, "," MNTOPT_UQUOTANOENF); | |
511 | ||
512 | if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
513 | seq_puts(m, "," MNTOPT_PRJQUOTA); | |
514 | else if (mp->m_qflags & XFS_PQUOTA_ACCT) | |
515 | seq_puts(m, "," MNTOPT_PQUOTANOENF); | |
516 | ||
517 | if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
518 | seq_puts(m, "," MNTOPT_GRPQUOTA); | |
519 | else if (mp->m_qflags & XFS_GQUOTA_ACCT) | |
520 | seq_puts(m, "," MNTOPT_GQUOTANOENF); | |
521 | ||
522 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) | |
523 | seq_puts(m, "," MNTOPT_NOQUOTA); | |
524 | ||
525 | return 0; | |
526 | } | |
1da177e4 LT |
527 | __uint64_t |
528 | xfs_max_file_offset( | |
529 | unsigned int blockshift) | |
530 | { | |
531 | unsigned int pagefactor = 1; | |
532 | unsigned int bitshift = BITS_PER_LONG - 1; | |
533 | ||
534 | /* Figure out maximum filesize, on Linux this can depend on | |
535 | * the filesystem blocksize (on 32 bit platforms). | |
536 | * __block_prepare_write does this in an [unsigned] long... | |
537 | * page->index << (PAGE_CACHE_SHIFT - bbits) | |
538 | * So, for page sized blocks (4K on 32 bit platforms), | |
539 | * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is | |
540 | * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) | |
541 | * but for smaller blocksizes it is less (bbits = log2 bsize). | |
542 | * Note1: get_block_t takes a long (implicit cast from above) | |
543 | * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch | |
544 | * can optionally convert the [unsigned] long from above into | |
545 | * an [unsigned] long long. | |
546 | */ | |
547 | ||
548 | #if BITS_PER_LONG == 32 | |
549 | # if defined(CONFIG_LBD) | |
550 | ASSERT(sizeof(sector_t) == 8); | |
551 | pagefactor = PAGE_CACHE_SIZE; | |
552 | bitshift = BITS_PER_LONG; | |
553 | # else | |
554 | pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift); | |
555 | # endif | |
556 | #endif | |
557 | ||
558 | return (((__uint64_t)pagefactor) << bitshift) - 1; | |
559 | } | |
560 | ||
7989cb8e | 561 | STATIC_INLINE void |
1da177e4 LT |
562 | xfs_set_inodeops( |
563 | struct inode *inode) | |
564 | { | |
0432dab2 CH |
565 | switch (inode->i_mode & S_IFMT) { |
566 | case S_IFREG: | |
416c6d5b | 567 | inode->i_op = &xfs_inode_operations; |
3562fd45 | 568 | inode->i_fop = &xfs_file_operations; |
e4c573bb | 569 | inode->i_mapping->a_ops = &xfs_address_space_operations; |
0432dab2 CH |
570 | break; |
571 | case S_IFDIR: | |
416c6d5b | 572 | inode->i_op = &xfs_dir_inode_operations; |
3562fd45 | 573 | inode->i_fop = &xfs_dir_file_operations; |
0432dab2 CH |
574 | break; |
575 | case S_IFLNK: | |
416c6d5b | 576 | inode->i_op = &xfs_symlink_inode_operations; |
222096ae | 577 | if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE)) |
e4c573bb | 578 | inode->i_mapping->a_ops = &xfs_address_space_operations; |
0432dab2 CH |
579 | break; |
580 | default: | |
416c6d5b | 581 | inode->i_op = &xfs_inode_operations; |
1da177e4 | 582 | init_special_inode(inode, inode->i_mode, inode->i_rdev); |
0432dab2 | 583 | break; |
1da177e4 LT |
584 | } |
585 | } | |
586 | ||
7989cb8e | 587 | STATIC_INLINE void |
1da177e4 LT |
588 | xfs_revalidate_inode( |
589 | xfs_mount_t *mp, | |
67fcaa73 | 590 | bhv_vnode_t *vp, |
1da177e4 LT |
591 | xfs_inode_t *ip) |
592 | { | |
ec86dc02 | 593 | struct inode *inode = vn_to_inode(vp); |
1da177e4 | 594 | |
0432dab2 | 595 | inode->i_mode = ip->i_d.di_mode; |
1da177e4 LT |
596 | inode->i_nlink = ip->i_d.di_nlink; |
597 | inode->i_uid = ip->i_d.di_uid; | |
598 | inode->i_gid = ip->i_d.di_gid; | |
0432dab2 CH |
599 | |
600 | switch (inode->i_mode & S_IFMT) { | |
601 | case S_IFBLK: | |
602 | case S_IFCHR: | |
603 | inode->i_rdev = | |
604 | MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff, | |
605 | sysv_minor(ip->i_df.if_u2.if_rdev)); | |
606 | break; | |
607 | default: | |
1da177e4 | 608 | inode->i_rdev = 0; |
0432dab2 | 609 | break; |
1da177e4 | 610 | } |
0432dab2 | 611 | |
1da177e4 LT |
612 | inode->i_generation = ip->i_d.di_gen; |
613 | i_size_write(inode, ip->i_d.di_size); | |
1da177e4 LT |
614 | inode->i_atime.tv_sec = ip->i_d.di_atime.t_sec; |
615 | inode->i_atime.tv_nsec = ip->i_d.di_atime.t_nsec; | |
616 | inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec; | |
617 | inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec; | |
618 | inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec; | |
619 | inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec; | |
620 | if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE) | |
621 | inode->i_flags |= S_IMMUTABLE; | |
622 | else | |
623 | inode->i_flags &= ~S_IMMUTABLE; | |
624 | if (ip->i_d.di_flags & XFS_DIFLAG_APPEND) | |
625 | inode->i_flags |= S_APPEND; | |
626 | else | |
627 | inode->i_flags &= ~S_APPEND; | |
628 | if (ip->i_d.di_flags & XFS_DIFLAG_SYNC) | |
629 | inode->i_flags |= S_SYNC; | |
630 | else | |
631 | inode->i_flags &= ~S_SYNC; | |
632 | if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME) | |
633 | inode->i_flags |= S_NOATIME; | |
634 | else | |
635 | inode->i_flags &= ~S_NOATIME; | |
b3aea4ed | 636 | xfs_iflags_clear(ip, XFS_IMODIFIED); |
1da177e4 LT |
637 | } |
638 | ||
639 | void | |
640 | xfs_initialize_vnode( | |
48c872a9 | 641 | struct xfs_mount *mp, |
67fcaa73 | 642 | bhv_vnode_t *vp, |
745f6919 | 643 | struct xfs_inode *ip) |
1da177e4 | 644 | { |
ec86dc02 | 645 | struct inode *inode = vn_to_inode(vp); |
1da177e4 | 646 | |
739bfb2a | 647 | if (!ip->i_vnode) { |
739bfb2a CH |
648 | ip->i_vnode = vp; |
649 | inode->i_private = ip; | |
1da177e4 LT |
650 | } |
651 | ||
652 | /* | |
653 | * We need to set the ops vectors, and unlock the inode, but if | |
654 | * we have been called during the new inode create process, it is | |
655 | * too early to fill in the Linux inode. We will get called a | |
656 | * second time once the inode is properly set up, and then we can | |
657 | * finish our work. | |
658 | */ | |
745f6919 | 659 | if (ip->i_d.di_mode != 0 && (inode->i_state & I_NEW)) { |
48c872a9 | 660 | xfs_revalidate_inode(mp, vp, ip); |
1da177e4 | 661 | xfs_set_inodeops(inode); |
ec86dc02 | 662 | |
7a18c386 | 663 | xfs_iflags_clear(ip, XFS_INEW); |
1da177e4 LT |
664 | barrier(); |
665 | ||
666 | unlock_new_inode(inode); | |
667 | } | |
668 | } | |
669 | ||
670 | int | |
671 | xfs_blkdev_get( | |
672 | xfs_mount_t *mp, | |
673 | const char *name, | |
674 | struct block_device **bdevp) | |
675 | { | |
676 | int error = 0; | |
677 | ||
678 | *bdevp = open_bdev_excl(name, 0, mp); | |
679 | if (IS_ERR(*bdevp)) { | |
680 | error = PTR_ERR(*bdevp); | |
681 | printk("XFS: Invalid device [%s], error=%d\n", name, error); | |
682 | } | |
683 | ||
684 | return -error; | |
685 | } | |
686 | ||
687 | void | |
688 | xfs_blkdev_put( | |
689 | struct block_device *bdev) | |
690 | { | |
691 | if (bdev) | |
692 | close_bdev_excl(bdev); | |
693 | } | |
694 | ||
f538d4da CH |
695 | /* |
696 | * Try to write out the superblock using barriers. | |
697 | */ | |
698 | STATIC int | |
699 | xfs_barrier_test( | |
700 | xfs_mount_t *mp) | |
701 | { | |
702 | xfs_buf_t *sbp = xfs_getsb(mp, 0); | |
703 | int error; | |
704 | ||
705 | XFS_BUF_UNDONE(sbp); | |
706 | XFS_BUF_UNREAD(sbp); | |
707 | XFS_BUF_UNDELAYWRITE(sbp); | |
708 | XFS_BUF_WRITE(sbp); | |
709 | XFS_BUF_UNASYNC(sbp); | |
710 | XFS_BUF_ORDERED(sbp); | |
711 | ||
712 | xfsbdstrat(mp, sbp); | |
713 | error = xfs_iowait(sbp); | |
714 | ||
715 | /* | |
716 | * Clear all the flags we set and possible error state in the | |
717 | * buffer. We only did the write to try out whether barriers | |
718 | * worked and shouldn't leave any traces in the superblock | |
719 | * buffer. | |
720 | */ | |
721 | XFS_BUF_DONE(sbp); | |
722 | XFS_BUF_ERROR(sbp, 0); | |
723 | XFS_BUF_UNORDERED(sbp); | |
724 | ||
725 | xfs_buf_relse(sbp); | |
726 | return error; | |
727 | } | |
728 | ||
729 | void | |
730 | xfs_mountfs_check_barriers(xfs_mount_t *mp) | |
731 | { | |
732 | int error; | |
733 | ||
734 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
735 | xfs_fs_cmn_err(CE_NOTE, mp, | |
736 | "Disabling barriers, not supported with external log device"); | |
737 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 738 | return; |
f538d4da CH |
739 | } |
740 | ||
ce8e922c | 741 | if (mp->m_ddev_targp->bt_bdev->bd_disk->queue->ordered == |
f538d4da CH |
742 | QUEUE_ORDERED_NONE) { |
743 | xfs_fs_cmn_err(CE_NOTE, mp, | |
744 | "Disabling barriers, not supported by the underlying device"); | |
745 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 746 | return; |
f538d4da CH |
747 | } |
748 | ||
b2ea401b NS |
749 | if (xfs_readonly_buftarg(mp->m_ddev_targp)) { |
750 | xfs_fs_cmn_err(CE_NOTE, mp, | |
751 | "Disabling barriers, underlying device is readonly"); | |
752 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
753 | return; | |
754 | } | |
755 | ||
f538d4da CH |
756 | error = xfs_barrier_test(mp); |
757 | if (error) { | |
758 | xfs_fs_cmn_err(CE_NOTE, mp, | |
759 | "Disabling barriers, trial barrier write failed"); | |
760 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 761 | return; |
f538d4da CH |
762 | } |
763 | } | |
764 | ||
765 | void | |
766 | xfs_blkdev_issue_flush( | |
767 | xfs_buftarg_t *buftarg) | |
768 | { | |
ce8e922c | 769 | blkdev_issue_flush(buftarg->bt_bdev, NULL); |
f538d4da | 770 | } |
1da177e4 | 771 | |
19f354d4 CH |
772 | STATIC void |
773 | xfs_close_devices( | |
774 | struct xfs_mount *mp) | |
775 | { | |
776 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
777 | xfs_free_buftarg(mp->m_logdev_targp); | |
778 | xfs_blkdev_put(mp->m_logdev_targp->bt_bdev); | |
779 | } | |
780 | if (mp->m_rtdev_targp) { | |
781 | xfs_free_buftarg(mp->m_rtdev_targp); | |
782 | xfs_blkdev_put(mp->m_rtdev_targp->bt_bdev); | |
783 | } | |
784 | xfs_free_buftarg(mp->m_ddev_targp); | |
785 | } | |
786 | ||
787 | /* | |
788 | * The file system configurations are: | |
789 | * (1) device (partition) with data and internal log | |
790 | * (2) logical volume with data and log subvolumes. | |
791 | * (3) logical volume with data, log, and realtime subvolumes. | |
792 | * | |
793 | * We only have to handle opening the log and realtime volumes here if | |
794 | * they are present. The data subvolume has already been opened by | |
795 | * get_sb_bdev() and is stored in sb->s_bdev. | |
796 | */ | |
797 | STATIC int | |
798 | xfs_open_devices( | |
799 | struct xfs_mount *mp, | |
800 | struct xfs_mount_args *args) | |
801 | { | |
802 | struct block_device *ddev = mp->m_super->s_bdev; | |
803 | struct block_device *logdev = NULL, *rtdev = NULL; | |
804 | int error; | |
805 | ||
806 | /* | |
807 | * Open real time and log devices - order is important. | |
808 | */ | |
809 | if (args->logname[0]) { | |
810 | error = xfs_blkdev_get(mp, args->logname, &logdev); | |
811 | if (error) | |
812 | goto out; | |
813 | } | |
814 | ||
815 | if (args->rtname[0]) { | |
816 | error = xfs_blkdev_get(mp, args->rtname, &rtdev); | |
817 | if (error) | |
818 | goto out_close_logdev; | |
819 | ||
820 | if (rtdev == ddev || rtdev == logdev) { | |
821 | cmn_err(CE_WARN, | |
822 | "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev."); | |
823 | error = EINVAL; | |
824 | goto out_close_rtdev; | |
825 | } | |
826 | } | |
827 | ||
828 | /* | |
829 | * Setup xfs_mount buffer target pointers | |
830 | */ | |
831 | error = ENOMEM; | |
832 | mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0); | |
833 | if (!mp->m_ddev_targp) | |
834 | goto out_close_rtdev; | |
835 | ||
836 | if (rtdev) { | |
837 | mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1); | |
838 | if (!mp->m_rtdev_targp) | |
839 | goto out_free_ddev_targ; | |
840 | } | |
841 | ||
842 | if (logdev && logdev != ddev) { | |
843 | mp->m_logdev_targp = xfs_alloc_buftarg(logdev, 1); | |
844 | if (!mp->m_logdev_targp) | |
845 | goto out_free_rtdev_targ; | |
846 | } else { | |
847 | mp->m_logdev_targp = mp->m_ddev_targp; | |
848 | } | |
849 | ||
850 | return 0; | |
851 | ||
852 | out_free_rtdev_targ: | |
853 | if (mp->m_rtdev_targp) | |
854 | xfs_free_buftarg(mp->m_rtdev_targp); | |
855 | out_free_ddev_targ: | |
856 | xfs_free_buftarg(mp->m_ddev_targp); | |
857 | out_close_rtdev: | |
858 | if (rtdev) | |
859 | xfs_blkdev_put(rtdev); | |
860 | out_close_logdev: | |
861 | if (logdev && logdev != ddev) | |
862 | xfs_blkdev_put(logdev); | |
863 | out: | |
864 | return error; | |
865 | } | |
866 | ||
e34b562c CH |
867 | /* |
868 | * Setup xfs_mount buffer target pointers based on superblock | |
869 | */ | |
870 | STATIC int | |
871 | xfs_setup_devices( | |
872 | struct xfs_mount *mp) | |
873 | { | |
874 | int error; | |
19f354d4 | 875 | |
e34b562c CH |
876 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
877 | mp->m_sb.sb_sectsize); | |
878 | if (error) | |
879 | return error; | |
880 | ||
881 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
882 | unsigned int log_sector_size = BBSIZE; | |
883 | ||
884 | if (xfs_sb_version_hassector(&mp->m_sb)) | |
885 | log_sector_size = mp->m_sb.sb_logsectsize; | |
886 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | |
887 | mp->m_sb.sb_blocksize, | |
888 | log_sector_size); | |
889 | if (error) | |
890 | return error; | |
891 | } | |
892 | if (mp->m_rtdev_targp) { | |
893 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | |
894 | mp->m_sb.sb_blocksize, | |
895 | mp->m_sb.sb_sectsize); | |
896 | if (error) | |
897 | return error; | |
898 | } | |
899 | ||
900 | return 0; | |
901 | } | |
19f354d4 | 902 | |
249a8c11 DC |
903 | /* |
904 | * XFS AIL push thread support | |
905 | */ | |
906 | void | |
907 | xfsaild_wakeup( | |
908 | xfs_mount_t *mp, | |
909 | xfs_lsn_t threshold_lsn) | |
910 | { | |
911 | mp->m_ail.xa_target = threshold_lsn; | |
912 | wake_up_process(mp->m_ail.xa_task); | |
913 | } | |
914 | ||
915 | int | |
916 | xfsaild( | |
917 | void *data) | |
918 | { | |
919 | xfs_mount_t *mp = (xfs_mount_t *)data; | |
920 | xfs_lsn_t last_pushed_lsn = 0; | |
921 | long tout = 0; | |
922 | ||
923 | while (!kthread_should_stop()) { | |
924 | if (tout) | |
925 | schedule_timeout_interruptible(msecs_to_jiffies(tout)); | |
926 | tout = 1000; | |
927 | ||
928 | /* swsusp */ | |
929 | try_to_freeze(); | |
930 | ||
931 | ASSERT(mp->m_log); | |
932 | if (XFS_FORCED_SHUTDOWN(mp)) | |
933 | continue; | |
934 | ||
935 | tout = xfsaild_push(mp, &last_pushed_lsn); | |
936 | } | |
937 | ||
938 | return 0; | |
939 | } /* xfsaild */ | |
940 | ||
941 | int | |
942 | xfsaild_start( | |
943 | xfs_mount_t *mp) | |
944 | { | |
945 | mp->m_ail.xa_target = 0; | |
946 | mp->m_ail.xa_task = kthread_run(xfsaild, mp, "xfsaild"); | |
947 | if (IS_ERR(mp->m_ail.xa_task)) | |
948 | return -PTR_ERR(mp->m_ail.xa_task); | |
949 | return 0; | |
950 | } | |
951 | ||
952 | void | |
953 | xfsaild_stop( | |
954 | xfs_mount_t *mp) | |
955 | { | |
956 | kthread_stop(mp->m_ail.xa_task); | |
957 | } | |
958 | ||
959 | ||
960 | ||
1da177e4 | 961 | STATIC struct inode * |
a50cd269 | 962 | xfs_fs_alloc_inode( |
1da177e4 LT |
963 | struct super_block *sb) |
964 | { | |
67fcaa73 | 965 | bhv_vnode_t *vp; |
1da177e4 | 966 | |
8758280f NS |
967 | vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP); |
968 | if (unlikely(!vp)) | |
1da177e4 | 969 | return NULL; |
ec86dc02 | 970 | return vn_to_inode(vp); |
1da177e4 LT |
971 | } |
972 | ||
973 | STATIC void | |
a50cd269 | 974 | xfs_fs_destroy_inode( |
1da177e4 LT |
975 | struct inode *inode) |
976 | { | |
ec86dc02 | 977 | kmem_zone_free(xfs_vnode_zone, vn_from_inode(inode)); |
1da177e4 LT |
978 | } |
979 | ||
980 | STATIC void | |
a50cd269 | 981 | xfs_fs_inode_init_once( |
4ba9b9d0 | 982 | void *vnode) |
1da177e4 | 983 | { |
a35afb83 | 984 | inode_init_once(vn_to_inode((bhv_vnode_t *)vnode)); |
1da177e4 LT |
985 | } |
986 | ||
de2eeea6 | 987 | STATIC int __init |
8758280f | 988 | xfs_init_zones(void) |
1da177e4 | 989 | { |
67fcaa73 | 990 | xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode", |
e0cc2325 NS |
991 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | |
992 | KM_ZONE_SPREAD, | |
a50cd269 | 993 | xfs_fs_inode_init_once); |
0829c360 CH |
994 | if (!xfs_vnode_zone) |
995 | goto out; | |
996 | ||
997 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); | |
998 | if (!xfs_ioend_zone) | |
999 | goto out_destroy_vnode_zone; | |
1000 | ||
93d2341c MD |
1001 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, |
1002 | xfs_ioend_zone); | |
0829c360 CH |
1003 | if (!xfs_ioend_pool) |
1004 | goto out_free_ioend_zone; | |
1da177e4 | 1005 | return 0; |
0829c360 | 1006 | |
0829c360 CH |
1007 | out_free_ioend_zone: |
1008 | kmem_zone_destroy(xfs_ioend_zone); | |
1009 | out_destroy_vnode_zone: | |
1010 | kmem_zone_destroy(xfs_vnode_zone); | |
1011 | out: | |
1012 | return -ENOMEM; | |
1da177e4 LT |
1013 | } |
1014 | ||
1015 | STATIC void | |
8758280f | 1016 | xfs_destroy_zones(void) |
1da177e4 | 1017 | { |
0829c360 CH |
1018 | mempool_destroy(xfs_ioend_pool); |
1019 | kmem_zone_destroy(xfs_vnode_zone); | |
1020 | kmem_zone_destroy(xfs_ioend_zone); | |
1da177e4 LT |
1021 | } |
1022 | ||
1023 | /* | |
1024 | * Attempt to flush the inode, this will actually fail | |
1025 | * if the inode is pinned, but we dirty the inode again | |
1026 | * at the point when it is unpinned after a log write, | |
8758280f | 1027 | * since this is when the inode itself becomes flushable. |
1da177e4 LT |
1028 | */ |
1029 | STATIC int | |
a50cd269 | 1030 | xfs_fs_write_inode( |
1da177e4 LT |
1031 | struct inode *inode, |
1032 | int sync) | |
1033 | { | |
a3f74ffb DC |
1034 | int error = 0; |
1035 | int flags = 0; | |
1da177e4 | 1036 | |
cf441eeb | 1037 | xfs_itrace_entry(XFS_I(inode)); |
739bfb2a CH |
1038 | if (sync) { |
1039 | filemap_fdatawait(inode->i_mapping); | |
1040 | flags |= FLUSH_SYNC; | |
1da177e4 | 1041 | } |
739bfb2a | 1042 | error = xfs_inode_flush(XFS_I(inode), flags); |
e893bffd LM |
1043 | /* |
1044 | * if we failed to write out the inode then mark | |
1045 | * it dirty again so we'll try again later. | |
1046 | */ | |
1047 | if (error) | |
1048 | mark_inode_dirty_sync(inode); | |
739bfb2a | 1049 | |
1da177e4 LT |
1050 | return -error; |
1051 | } | |
1052 | ||
1053 | STATIC void | |
a50cd269 | 1054 | xfs_fs_clear_inode( |
1da177e4 LT |
1055 | struct inode *inode) |
1056 | { | |
1543d79c | 1057 | xfs_inode_t *ip = XFS_I(inode); |
56d433e4 | 1058 | |
02ba71de | 1059 | /* |
1543d79c | 1060 | * ip can be null when xfs_iget_core calls xfs_idestroy if we |
02ba71de CH |
1061 | * find an inode with di_mode == 0 but without IGET_CREATE set. |
1062 | */ | |
1543d79c | 1063 | if (ip) { |
cf441eeb | 1064 | xfs_itrace_entry(ip); |
1543d79c CH |
1065 | XFS_STATS_INC(vn_rele); |
1066 | XFS_STATS_INC(vn_remove); | |
1067 | XFS_STATS_INC(vn_reclaim); | |
1068 | XFS_STATS_DEC(vn_active); | |
1069 | ||
1070 | xfs_inactive(ip); | |
1071 | xfs_iflags_clear(ip, XFS_IMODIFIED); | |
1072 | if (xfs_reclaim(ip)) | |
34a622b2 | 1073 | panic("%s: cannot reclaim 0x%p\n", __func__, inode); |
b3aea4ed | 1074 | } |
56d433e4 | 1075 | |
739bfb2a | 1076 | ASSERT(XFS_I(inode) == NULL); |
56d433e4 | 1077 | } |
1da177e4 LT |
1078 | |
1079 | /* | |
1080 | * Enqueue a work item to be picked up by the vfs xfssyncd thread. | |
1081 | * Doing this has two advantages: | |
1082 | * - It saves on stack space, which is tight in certain situations | |
1083 | * - It can be used (with care) as a mechanism to avoid deadlocks. | |
1084 | * Flushing while allocating in a full filesystem requires both. | |
1085 | */ | |
1086 | STATIC void | |
1087 | xfs_syncd_queue_work( | |
74394496 | 1088 | struct xfs_mount *mp, |
1da177e4 | 1089 | void *data, |
74394496 | 1090 | void (*syncer)(struct xfs_mount *, void *)) |
1da177e4 | 1091 | { |
b83bd138 | 1092 | struct bhv_vfs_sync_work *work; |
1da177e4 | 1093 | |
b83bd138 | 1094 | work = kmem_alloc(sizeof(struct bhv_vfs_sync_work), KM_SLEEP); |
1da177e4 LT |
1095 | INIT_LIST_HEAD(&work->w_list); |
1096 | work->w_syncer = syncer; | |
1097 | work->w_data = data; | |
74394496 CH |
1098 | work->w_mount = mp; |
1099 | spin_lock(&mp->m_sync_lock); | |
1100 | list_add_tail(&work->w_list, &mp->m_sync_list); | |
1101 | spin_unlock(&mp->m_sync_lock); | |
1102 | wake_up_process(mp->m_sync_task); | |
1da177e4 LT |
1103 | } |
1104 | ||
1105 | /* | |
1106 | * Flush delayed allocate data, attempting to free up reserved space | |
1107 | * from existing allocations. At this point a new allocation attempt | |
1108 | * has failed with ENOSPC and we are in the process of scratching our | |
1109 | * heads, looking about for more room... | |
1110 | */ | |
1111 | STATIC void | |
1112 | xfs_flush_inode_work( | |
74394496 CH |
1113 | struct xfs_mount *mp, |
1114 | void *arg) | |
1da177e4 | 1115 | { |
74394496 CH |
1116 | struct inode *inode = arg; |
1117 | filemap_flush(inode->i_mapping); | |
1118 | iput(inode); | |
1da177e4 LT |
1119 | } |
1120 | ||
1121 | void | |
1122 | xfs_flush_inode( | |
1123 | xfs_inode_t *ip) | |
1124 | { | |
74394496 | 1125 | struct inode *inode = ip->i_vnode; |
1da177e4 LT |
1126 | |
1127 | igrab(inode); | |
74394496 | 1128 | xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work); |
041e0e3b | 1129 | delay(msecs_to_jiffies(500)); |
1da177e4 LT |
1130 | } |
1131 | ||
1132 | /* | |
1133 | * This is the "bigger hammer" version of xfs_flush_inode_work... | |
1134 | * (IOW, "If at first you don't succeed, use a Bigger Hammer"). | |
1135 | */ | |
1136 | STATIC void | |
1137 | xfs_flush_device_work( | |
74394496 CH |
1138 | struct xfs_mount *mp, |
1139 | void *arg) | |
1da177e4 | 1140 | { |
74394496 | 1141 | struct inode *inode = arg; |
b267ce99 | 1142 | sync_blockdev(mp->m_super->s_bdev); |
74394496 | 1143 | iput(inode); |
1da177e4 LT |
1144 | } |
1145 | ||
1146 | void | |
1147 | xfs_flush_device( | |
1148 | xfs_inode_t *ip) | |
1149 | { | |
ec86dc02 | 1150 | struct inode *inode = vn_to_inode(XFS_ITOV(ip)); |
1da177e4 LT |
1151 | |
1152 | igrab(inode); | |
74394496 | 1153 | xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work); |
041e0e3b | 1154 | delay(msecs_to_jiffies(500)); |
1da177e4 LT |
1155 | xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC); |
1156 | } | |
1157 | ||
1da177e4 | 1158 | STATIC void |
74394496 CH |
1159 | xfs_sync_worker( |
1160 | struct xfs_mount *mp, | |
1da177e4 LT |
1161 | void *unused) |
1162 | { | |
1163 | int error; | |
1164 | ||
74394496 | 1165 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) |
7e20694d | 1166 | error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR); |
74394496 CH |
1167 | mp->m_sync_seq++; |
1168 | wake_up(&mp->m_wait_single_sync_task); | |
1da177e4 LT |
1169 | } |
1170 | ||
1171 | STATIC int | |
1172 | xfssyncd( | |
1173 | void *arg) | |
1174 | { | |
74394496 | 1175 | struct xfs_mount *mp = arg; |
1da177e4 | 1176 | long timeleft; |
b83bd138 | 1177 | bhv_vfs_sync_work_t *work, *n; |
4df08c52 | 1178 | LIST_HEAD (tmp); |
1da177e4 | 1179 | |
83144186 | 1180 | set_freezable(); |
041e0e3b | 1181 | timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10); |
1da177e4 | 1182 | for (;;) { |
041e0e3b | 1183 | timeleft = schedule_timeout_interruptible(timeleft); |
1da177e4 | 1184 | /* swsusp */ |
3e1d1d28 | 1185 | try_to_freeze(); |
74394496 | 1186 | if (kthread_should_stop() && list_empty(&mp->m_sync_list)) |
1da177e4 LT |
1187 | break; |
1188 | ||
74394496 | 1189 | spin_lock(&mp->m_sync_lock); |
1da177e4 LT |
1190 | /* |
1191 | * We can get woken by laptop mode, to do a sync - | |
1192 | * that's the (only!) case where the list would be | |
1193 | * empty with time remaining. | |
1194 | */ | |
74394496 | 1195 | if (!timeleft || list_empty(&mp->m_sync_list)) { |
1da177e4 | 1196 | if (!timeleft) |
041e0e3b NA |
1197 | timeleft = xfs_syncd_centisecs * |
1198 | msecs_to_jiffies(10); | |
74394496 CH |
1199 | INIT_LIST_HEAD(&mp->m_sync_work.w_list); |
1200 | list_add_tail(&mp->m_sync_work.w_list, | |
1201 | &mp->m_sync_list); | |
1da177e4 | 1202 | } |
74394496 | 1203 | list_for_each_entry_safe(work, n, &mp->m_sync_list, w_list) |
1da177e4 | 1204 | list_move(&work->w_list, &tmp); |
74394496 | 1205 | spin_unlock(&mp->m_sync_lock); |
1da177e4 LT |
1206 | |
1207 | list_for_each_entry_safe(work, n, &tmp, w_list) { | |
74394496 | 1208 | (*work->w_syncer)(mp, work->w_data); |
1da177e4 | 1209 | list_del(&work->w_list); |
74394496 | 1210 | if (work == &mp->m_sync_work) |
1da177e4 | 1211 | continue; |
f0e2d93c | 1212 | kmem_free(work); |
1da177e4 LT |
1213 | } |
1214 | } | |
1215 | ||
1da177e4 LT |
1216 | return 0; |
1217 | } | |
1218 | ||
1da177e4 | 1219 | STATIC void |
a50cd269 | 1220 | xfs_fs_put_super( |
1da177e4 LT |
1221 | struct super_block *sb) |
1222 | { | |
745f6919 | 1223 | struct xfs_mount *mp = XFS_M(sb); |
e48ad316 CH |
1224 | struct xfs_inode *rip = mp->m_rootip; |
1225 | int unmount_event_flags = 0; | |
1da177e4 LT |
1226 | int error; |
1227 | ||
74394496 CH |
1228 | kthread_stop(mp->m_sync_task); |
1229 | ||
745f6919 | 1230 | xfs_sync(mp, SYNC_ATTR | SYNC_DELWRI); |
e48ad316 CH |
1231 | |
1232 | #ifdef HAVE_DMAPI | |
1233 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1234 | unmount_event_flags = | |
1235 | (mp->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? | |
1236 | 0 : DM_FLAGS_UNWANTED; | |
1237 | /* | |
1238 | * Ignore error from dmapi here, first unmount is not allowed | |
1239 | * to fail anyway, and second we wouldn't want to fail a | |
1240 | * unmount because of dmapi. | |
1241 | */ | |
1242 | XFS_SEND_PREUNMOUNT(mp, rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL, | |
1243 | NULL, NULL, 0, 0, unmount_event_flags); | |
1244 | } | |
1245 | #endif | |
1246 | ||
1247 | /* | |
1248 | * Blow away any referenced inode in the filestreams cache. | |
1249 | * This can and will cause log traffic as inodes go inactive | |
1250 | * here. | |
1251 | */ | |
1252 | xfs_filestream_unmount(mp); | |
1253 | ||
1254 | XFS_bflush(mp->m_ddev_targp); | |
1255 | error = xfs_unmount_flush(mp, 0); | |
1256 | WARN_ON(error); | |
1257 | ||
1258 | IRELE(rip); | |
1259 | ||
1260 | /* | |
1261 | * If we're forcing a shutdown, typically because of a media error, | |
1262 | * we want to make sure we invalidate dirty pages that belong to | |
1263 | * referenced vnodes as well. | |
1264 | */ | |
1265 | if (XFS_FORCED_SHUTDOWN(mp)) { | |
1266 | error = xfs_sync(mp, SYNC_WAIT | SYNC_CLOSE); | |
1267 | ASSERT(error != EFSCORRUPTED); | |
1268 | } | |
1269 | ||
1270 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1271 | XFS_SEND_UNMOUNT(mp, rip, DM_RIGHT_NULL, 0, 0, | |
1272 | unmount_event_flags); | |
1273 | } | |
1274 | ||
19f354d4 | 1275 | xfs_unmountfs(mp); |
c962fb79 | 1276 | xfs_icsb_destroy_counters(mp); |
19f354d4 | 1277 | xfs_close_devices(mp); |
e48ad316 CH |
1278 | xfs_qmops_put(mp); |
1279 | xfs_dmops_put(mp); | |
c962fb79 | 1280 | kfree(mp); |
1da177e4 LT |
1281 | } |
1282 | ||
1283 | STATIC void | |
a50cd269 | 1284 | xfs_fs_write_super( |
1da177e4 LT |
1285 | struct super_block *sb) |
1286 | { | |
b83bd138 | 1287 | if (!(sb->s_flags & MS_RDONLY)) |
745f6919 | 1288 | xfs_sync(XFS_M(sb), SYNC_FSDATA); |
1da177e4 LT |
1289 | sb->s_dirt = 0; |
1290 | } | |
1291 | ||
1292 | STATIC int | |
a50cd269 | 1293 | xfs_fs_sync_super( |
1da177e4 LT |
1294 | struct super_block *sb, |
1295 | int wait) | |
1296 | { | |
745f6919 | 1297 | struct xfs_mount *mp = XFS_M(sb); |
b83bd138 NS |
1298 | int error; |
1299 | int flags; | |
1da177e4 | 1300 | |
e893bffd LM |
1301 | /* |
1302 | * Treat a sync operation like a freeze. This is to work | |
1303 | * around a race in sync_inodes() which works in two phases | |
1304 | * - an asynchronous flush, which can write out an inode | |
1305 | * without waiting for file size updates to complete, and a | |
1306 | * synchronous flush, which wont do anything because the | |
1307 | * async flush removed the inode's dirty flag. Also | |
1308 | * sync_inodes() will not see any files that just have | |
1309 | * outstanding transactions to be flushed because we don't | |
1310 | * dirty the Linux inode until after the transaction I/O | |
1311 | * completes. | |
1312 | */ | |
1313 | if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) { | |
2823945f DC |
1314 | /* |
1315 | * First stage of freeze - no more writers will make progress | |
1316 | * now we are here, so we flush delwri and delalloc buffers | |
1317 | * here, then wait for all I/O to complete. Data is frozen at | |
1318 | * that point. Metadata is not frozen, transactions can still | |
1319 | * occur here so don't bother flushing the buftarg (i.e | |
1320 | * SYNC_QUIESCE) because it'll just get dirty again. | |
1321 | */ | |
516b2e7c | 1322 | flags = SYNC_DATA_QUIESCE; |
2823945f | 1323 | } else |
e893bffd | 1324 | flags = SYNC_FSDATA; |
1da177e4 | 1325 | |
745f6919 | 1326 | error = xfs_sync(mp, flags); |
1da177e4 LT |
1327 | sb->s_dirt = 0; |
1328 | ||
1329 | if (unlikely(laptop_mode)) { | |
74394496 | 1330 | int prev_sync_seq = mp->m_sync_seq; |
1da177e4 LT |
1331 | |
1332 | /* | |
1333 | * The disk must be active because we're syncing. | |
1334 | * We schedule xfssyncd now (now that the disk is | |
1335 | * active) instead of later (when it might not be). | |
1336 | */ | |
74394496 | 1337 | wake_up_process(mp->m_sync_task); |
1da177e4 LT |
1338 | /* |
1339 | * We have to wait for the sync iteration to complete. | |
1340 | * If we don't, the disk activity caused by the sync | |
1341 | * will come after the sync is completed, and that | |
1342 | * triggers another sync from laptop mode. | |
1343 | */ | |
74394496 CH |
1344 | wait_event(mp->m_wait_single_sync_task, |
1345 | mp->m_sync_seq != prev_sync_seq); | |
1da177e4 LT |
1346 | } |
1347 | ||
1348 | return -error; | |
1349 | } | |
1350 | ||
1351 | STATIC int | |
a50cd269 | 1352 | xfs_fs_statfs( |
726c3342 | 1353 | struct dentry *dentry, |
1da177e4 LT |
1354 | struct kstatfs *statp) |
1355 | { | |
4ca488eb CH |
1356 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
1357 | xfs_sb_t *sbp = &mp->m_sb; | |
1358 | __uint64_t fakeinos, id; | |
1359 | xfs_extlen_t lsize; | |
1360 | ||
1361 | statp->f_type = XFS_SB_MAGIC; | |
1362 | statp->f_namelen = MAXNAMELEN - 1; | |
1363 | ||
1364 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); | |
1365 | statp->f_fsid.val[0] = (u32)id; | |
1366 | statp->f_fsid.val[1] = (u32)(id >> 32); | |
1367 | ||
d4d90b57 | 1368 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
4ca488eb CH |
1369 | |
1370 | spin_lock(&mp->m_sb_lock); | |
1371 | statp->f_bsize = sbp->sb_blocksize; | |
1372 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; | |
1373 | statp->f_blocks = sbp->sb_dblocks - lsize; | |
1374 | statp->f_bfree = statp->f_bavail = | |
1375 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); | |
1376 | fakeinos = statp->f_bfree << sbp->sb_inopblog; | |
1377 | #if XFS_BIG_INUMS | |
1378 | fakeinos += mp->m_inoadd; | |
1379 | #endif | |
1380 | statp->f_files = | |
1381 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); | |
1382 | if (mp->m_maxicount) | |
1383 | #if XFS_BIG_INUMS | |
1384 | if (!mp->m_inoadd) | |
1385 | #endif | |
1386 | statp->f_files = min_t(typeof(statp->f_files), | |
1387 | statp->f_files, | |
1388 | mp->m_maxicount); | |
1389 | statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); | |
1390 | spin_unlock(&mp->m_sb_lock); | |
1391 | ||
1392 | XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp); | |
1393 | return 0; | |
1da177e4 LT |
1394 | } |
1395 | ||
1396 | STATIC int | |
a50cd269 | 1397 | xfs_fs_remount( |
1da177e4 LT |
1398 | struct super_block *sb, |
1399 | int *flags, | |
1400 | char *options) | |
1401 | { | |
745f6919 | 1402 | struct xfs_mount *mp = XFS_M(sb); |
bdd907ba | 1403 | struct xfs_mount_args *args; |
1da177e4 LT |
1404 | int error; |
1405 | ||
bdd907ba CH |
1406 | args = xfs_args_allocate(sb, 0); |
1407 | if (!args) | |
1408 | return -ENOMEM; | |
1409 | ||
745f6919 | 1410 | error = xfs_parseargs(mp, options, args, 1); |
48b62a1a CH |
1411 | if (error) |
1412 | goto out_free_args; | |
1413 | ||
1414 | if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */ | |
1415 | if (mp->m_flags & XFS_MOUNT_RDONLY) | |
1416 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | |
1417 | if (args->flags & XFSMNT_BARRIER) { | |
1418 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
1419 | xfs_mountfs_check_barriers(mp); | |
1420 | } else { | |
1421 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
1422 | } | |
1423 | } else if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { /* rw -> ro */ | |
1424 | xfs_filestream_flush(mp); | |
1425 | xfs_sync(mp, SYNC_DATA_QUIESCE); | |
1426 | xfs_attr_quiesce(mp); | |
1427 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1428 | } | |
1429 | ||
1430 | out_free_args: | |
bdd907ba | 1431 | kfree(args); |
1da177e4 LT |
1432 | return -error; |
1433 | } | |
1434 | ||
9909c4aa CH |
1435 | /* |
1436 | * Second stage of a freeze. The data is already frozen so we only | |
1437 | * need to take care of themetadata. Once that's done write a dummy | |
1438 | * record to dirty the log in case of a crash while frozen. | |
1439 | */ | |
1da177e4 | 1440 | STATIC void |
a50cd269 | 1441 | xfs_fs_lockfs( |
1da177e4 LT |
1442 | struct super_block *sb) |
1443 | { | |
9909c4aa CH |
1444 | struct xfs_mount *mp = XFS_M(sb); |
1445 | ||
1446 | xfs_attr_quiesce(mp); | |
1447 | xfs_fs_log_dummy(mp); | |
1da177e4 LT |
1448 | } |
1449 | ||
1450 | STATIC int | |
a50cd269 | 1451 | xfs_fs_show_options( |
1da177e4 LT |
1452 | struct seq_file *m, |
1453 | struct vfsmount *mnt) | |
1454 | { | |
745f6919 | 1455 | return -xfs_showargs(XFS_M(mnt->mnt_sb), m); |
1da177e4 LT |
1456 | } |
1457 | ||
ee34807a | 1458 | STATIC int |
a50cd269 | 1459 | xfs_fs_quotasync( |
ee34807a NS |
1460 | struct super_block *sb, |
1461 | int type) | |
1462 | { | |
b09cc771 | 1463 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL); |
ee34807a NS |
1464 | } |
1465 | ||
1da177e4 | 1466 | STATIC int |
a50cd269 | 1467 | xfs_fs_getxstate( |
1da177e4 LT |
1468 | struct super_block *sb, |
1469 | struct fs_quota_stat *fqs) | |
1470 | { | |
b09cc771 | 1471 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs); |
1da177e4 LT |
1472 | } |
1473 | ||
1474 | STATIC int | |
a50cd269 | 1475 | xfs_fs_setxstate( |
1da177e4 LT |
1476 | struct super_block *sb, |
1477 | unsigned int flags, | |
1478 | int op) | |
1479 | { | |
b09cc771 | 1480 | return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags); |
1da177e4 LT |
1481 | } |
1482 | ||
1483 | STATIC int | |
a50cd269 | 1484 | xfs_fs_getxquota( |
1da177e4 LT |
1485 | struct super_block *sb, |
1486 | int type, | |
1487 | qid_t id, | |
1488 | struct fs_disk_quota *fdq) | |
1489 | { | |
b09cc771 | 1490 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1491 | (type == USRQUOTA) ? Q_XGETQUOTA : |
1492 | ((type == GRPQUOTA) ? Q_XGETGQUOTA : | |
1493 | Q_XGETPQUOTA), id, (caddr_t)fdq); | |
1da177e4 LT |
1494 | } |
1495 | ||
1496 | STATIC int | |
a50cd269 | 1497 | xfs_fs_setxquota( |
1da177e4 LT |
1498 | struct super_block *sb, |
1499 | int type, | |
1500 | qid_t id, | |
1501 | struct fs_disk_quota *fdq) | |
1502 | { | |
b09cc771 | 1503 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1504 | (type == USRQUOTA) ? Q_XSETQLIM : |
1505 | ((type == GRPQUOTA) ? Q_XSETGQLIM : | |
1506 | Q_XSETPQLIM), id, (caddr_t)fdq); | |
1da177e4 LT |
1507 | } |
1508 | ||
f8f15e42 CH |
1509 | /* |
1510 | * This function fills in xfs_mount_t fields based on mount args. | |
1511 | * Note: the superblock has _not_ yet been read in. | |
1512 | */ | |
1513 | STATIC int | |
1514 | xfs_start_flags( | |
1515 | struct xfs_mount_args *ap, | |
1516 | struct xfs_mount *mp) | |
1517 | { | |
1518 | /* Values are in BBs */ | |
1519 | if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | |
1520 | /* | |
1521 | * At this point the superblock has not been read | |
1522 | * in, therefore we do not know the block size. | |
1523 | * Before the mount call ends we will convert | |
1524 | * these to FSBs. | |
1525 | */ | |
1526 | mp->m_dalign = ap->sunit; | |
1527 | mp->m_swidth = ap->swidth; | |
1528 | } | |
1529 | ||
1530 | if (ap->logbufs != -1 && | |
1531 | ap->logbufs != 0 && | |
1532 | (ap->logbufs < XLOG_MIN_ICLOGS || | |
1533 | ap->logbufs > XLOG_MAX_ICLOGS)) { | |
1534 | cmn_err(CE_WARN, | |
1535 | "XFS: invalid logbufs value: %d [not %d-%d]", | |
1536 | ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); | |
1537 | return XFS_ERROR(EINVAL); | |
1538 | } | |
1539 | mp->m_logbufs = ap->logbufs; | |
1540 | if (ap->logbufsize != -1 && | |
1541 | ap->logbufsize != 0 && | |
1542 | (ap->logbufsize < XLOG_MIN_RECORD_BSIZE || | |
1543 | ap->logbufsize > XLOG_MAX_RECORD_BSIZE || | |
1544 | !is_power_of_2(ap->logbufsize))) { | |
1545 | cmn_err(CE_WARN, | |
1546 | "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | |
1547 | ap->logbufsize); | |
1548 | return XFS_ERROR(EINVAL); | |
1549 | } | |
1550 | mp->m_logbsize = ap->logbufsize; | |
1551 | mp->m_fsname_len = strlen(ap->fsname) + 1; | |
1552 | mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP); | |
1553 | strcpy(mp->m_fsname, ap->fsname); | |
1554 | if (ap->rtname[0]) { | |
1555 | mp->m_rtname = kmem_alloc(strlen(ap->rtname) + 1, KM_SLEEP); | |
1556 | strcpy(mp->m_rtname, ap->rtname); | |
1557 | } | |
1558 | if (ap->logname[0]) { | |
1559 | mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP); | |
1560 | strcpy(mp->m_logname, ap->logname); | |
1561 | } | |
1562 | ||
1563 | if (ap->flags & XFSMNT_WSYNC) | |
1564 | mp->m_flags |= XFS_MOUNT_WSYNC; | |
1565 | #if XFS_BIG_INUMS | |
1566 | if (ap->flags & XFSMNT_INO64) { | |
1567 | mp->m_flags |= XFS_MOUNT_INO64; | |
1568 | mp->m_inoadd = XFS_INO64_OFFSET; | |
1569 | } | |
1570 | #endif | |
1571 | if (ap->flags & XFSMNT_RETERR) | |
1572 | mp->m_flags |= XFS_MOUNT_RETERR; | |
1573 | if (ap->flags & XFSMNT_NOALIGN) | |
1574 | mp->m_flags |= XFS_MOUNT_NOALIGN; | |
1575 | if (ap->flags & XFSMNT_SWALLOC) | |
1576 | mp->m_flags |= XFS_MOUNT_SWALLOC; | |
1577 | if (ap->flags & XFSMNT_OSYNCISOSYNC) | |
1578 | mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC; | |
1579 | if (ap->flags & XFSMNT_32BITINODES) | |
1580 | mp->m_flags |= XFS_MOUNT_32BITINODES; | |
1581 | ||
1582 | if (ap->flags & XFSMNT_IOSIZE) { | |
1583 | if (ap->iosizelog > XFS_MAX_IO_LOG || | |
1584 | ap->iosizelog < XFS_MIN_IO_LOG) { | |
1585 | cmn_err(CE_WARN, | |
1586 | "XFS: invalid log iosize: %d [not %d-%d]", | |
1587 | ap->iosizelog, XFS_MIN_IO_LOG, | |
1588 | XFS_MAX_IO_LOG); | |
1589 | return XFS_ERROR(EINVAL); | |
1590 | } | |
1591 | ||
1592 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | |
1593 | mp->m_readio_log = mp->m_writeio_log = ap->iosizelog; | |
1594 | } | |
1595 | ||
1596 | if (ap->flags & XFSMNT_IKEEP) | |
1597 | mp->m_flags |= XFS_MOUNT_IKEEP; | |
1598 | if (ap->flags & XFSMNT_DIRSYNC) | |
1599 | mp->m_flags |= XFS_MOUNT_DIRSYNC; | |
1600 | if (ap->flags & XFSMNT_ATTR2) | |
1601 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1602 | if (ap->flags & XFSMNT_NOATTR2) | |
1603 | mp->m_flags |= XFS_MOUNT_NOATTR2; | |
1604 | ||
1605 | if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE) | |
1606 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; | |
1607 | ||
1608 | /* | |
1609 | * no recovery flag requires a read-only mount | |
1610 | */ | |
1611 | if (ap->flags & XFSMNT_NORECOVERY) { | |
1612 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { | |
1613 | cmn_err(CE_WARN, | |
1614 | "XFS: tried to mount a FS read-write without recovery!"); | |
1615 | return XFS_ERROR(EINVAL); | |
1616 | } | |
1617 | mp->m_flags |= XFS_MOUNT_NORECOVERY; | |
1618 | } | |
1619 | ||
1620 | if (ap->flags & XFSMNT_NOUUID) | |
1621 | mp->m_flags |= XFS_MOUNT_NOUUID; | |
1622 | if (ap->flags & XFSMNT_BARRIER) | |
1623 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
1624 | else | |
1625 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
1626 | ||
1627 | if (ap->flags2 & XFSMNT2_FILESTREAMS) | |
1628 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; | |
1629 | ||
1630 | if (ap->flags & XFSMNT_DMAPI) | |
1631 | mp->m_flags |= XFS_MOUNT_DMAPI; | |
1632 | return 0; | |
1633 | } | |
1634 | ||
1635 | /* | |
1636 | * This function fills in xfs_mount_t fields based on mount args. | |
1637 | * Note: the superblock _has_ now been read in. | |
1638 | */ | |
1639 | STATIC int | |
1640 | xfs_finish_flags( | |
1641 | struct xfs_mount_args *ap, | |
1642 | struct xfs_mount *mp) | |
1643 | { | |
1644 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | |
1645 | ||
1646 | /* Fail a mount where the logbuf is smaller then the log stripe */ | |
1647 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { | |
1648 | if ((ap->logbufsize <= 0) && | |
1649 | (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) { | |
1650 | mp->m_logbsize = mp->m_sb.sb_logsunit; | |
1651 | } else if (ap->logbufsize > 0 && | |
1652 | ap->logbufsize < mp->m_sb.sb_logsunit) { | |
1653 | cmn_err(CE_WARN, | |
1654 | "XFS: logbuf size must be greater than or equal to log stripe size"); | |
1655 | return XFS_ERROR(EINVAL); | |
1656 | } | |
1657 | } else { | |
1658 | /* Fail a mount if the logbuf is larger than 32K */ | |
1659 | if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) { | |
1660 | cmn_err(CE_WARN, | |
1661 | "XFS: logbuf size for version 1 logs must be 16K or 32K"); | |
1662 | return XFS_ERROR(EINVAL); | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | /* | |
1667 | * mkfs'ed attr2 will turn on attr2 mount unless explicitly | |
1668 | * told by noattr2 to turn it off | |
1669 | */ | |
1670 | if (xfs_sb_version_hasattr2(&mp->m_sb) && | |
1671 | !(ap->flags & XFSMNT_NOATTR2)) | |
1672 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1673 | ||
1674 | /* | |
1675 | * prohibit r/w mounts of read-only filesystems | |
1676 | */ | |
1677 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { | |
1678 | cmn_err(CE_WARN, | |
1679 | "XFS: cannot mount a read-only filesystem as read-write"); | |
1680 | return XFS_ERROR(EROFS); | |
1681 | } | |
1682 | ||
1683 | /* | |
1684 | * check for shared mount. | |
1685 | */ | |
1686 | if (ap->flags & XFSMNT_SHARED) { | |
1687 | if (!xfs_sb_version_hasshared(&mp->m_sb)) | |
1688 | return XFS_ERROR(EINVAL); | |
1689 | ||
1690 | /* | |
1691 | * For IRIX 6.5, shared mounts must have the shared | |
1692 | * version bit set, have the persistent readonly | |
1693 | * field set, must be version 0 and can only be mounted | |
1694 | * read-only. | |
1695 | */ | |
1696 | if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) || | |
1697 | (mp->m_sb.sb_shared_vn != 0)) | |
1698 | return XFS_ERROR(EINVAL); | |
1699 | ||
1700 | mp->m_flags |= XFS_MOUNT_SHARED; | |
1701 | ||
1702 | /* | |
1703 | * Shared XFS V0 can't deal with DMI. Return EINVAL. | |
1704 | */ | |
1705 | if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI)) | |
1706 | return XFS_ERROR(EINVAL); | |
1707 | } | |
1708 | ||
1709 | if (ap->flags & XFSMNT_UQUOTA) { | |
1710 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); | |
1711 | if (ap->flags & XFSMNT_UQUOTAENF) | |
1712 | mp->m_qflags |= XFS_UQUOTA_ENFD; | |
1713 | } | |
1714 | ||
1715 | if (ap->flags & XFSMNT_GQUOTA) { | |
1716 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); | |
1717 | if (ap->flags & XFSMNT_GQUOTAENF) | |
1718 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1719 | } else if (ap->flags & XFSMNT_PQUOTA) { | |
1720 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); | |
1721 | if (ap->flags & XFSMNT_PQUOTAENF) | |
1722 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1723 | } | |
1724 | ||
1725 | return 0; | |
1726 | } | |
1727 | ||
1da177e4 | 1728 | STATIC int |
a50cd269 | 1729 | xfs_fs_fill_super( |
1da177e4 LT |
1730 | struct super_block *sb, |
1731 | void *data, | |
1732 | int silent) | |
1733 | { | |
f3dcc13f | 1734 | struct inode *root; |
745f6919 | 1735 | struct xfs_mount *mp = NULL; |
bdd907ba | 1736 | struct xfs_mount_args *args; |
c962fb79 | 1737 | int flags = 0, error = ENOMEM; |
1da177e4 | 1738 | |
bdd907ba CH |
1739 | args = xfs_args_allocate(sb, silent); |
1740 | if (!args) | |
1741 | return -ENOMEM; | |
1742 | ||
c962fb79 CH |
1743 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
1744 | if (!mp) | |
1745 | goto out_free_args; | |
1da177e4 | 1746 | |
c962fb79 CH |
1747 | spin_lock_init(&mp->m_sb_lock); |
1748 | mutex_init(&mp->m_ilock); | |
1749 | mutex_init(&mp->m_growlock); | |
1750 | atomic_set(&mp->m_active_trans, 0); | |
74394496 CH |
1751 | INIT_LIST_HEAD(&mp->m_sync_list); |
1752 | spin_lock_init(&mp->m_sync_lock); | |
1753 | init_waitqueue_head(&mp->m_wait_single_sync_task); | |
1754 | ||
b267ce99 CH |
1755 | mp->m_super = sb; |
1756 | sb->s_fs_info = mp; | |
1da177e4 | 1757 | |
bd186aa9 CH |
1758 | if (sb->s_flags & MS_RDONLY) |
1759 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1760 | ||
745f6919 CH |
1761 | error = xfs_parseargs(mp, (char *)data, args, 0); |
1762 | if (error) | |
c962fb79 | 1763 | goto out_free_mp; |
1da177e4 LT |
1764 | |
1765 | sb_min_blocksize(sb, BBSIZE); | |
a50cd269 | 1766 | sb->s_export_op = &xfs_export_operations; |
a50cd269 NS |
1767 | sb->s_qcop = &xfs_quotactl_operations; |
1768 | sb->s_op = &xfs_super_operations; | |
1da177e4 | 1769 | |
f8f15e42 CH |
1770 | error = xfs_dmops_get(mp, args); |
1771 | if (error) | |
c962fb79 | 1772 | goto out_free_mp; |
f8f15e42 | 1773 | error = xfs_qmops_get(mp, args); |
745f6919 | 1774 | if (error) |
19f354d4 | 1775 | goto out_put_dmops; |
1da177e4 | 1776 | |
f8f15e42 CH |
1777 | if (args->flags & XFSMNT_QUIET) |
1778 | flags |= XFS_MFSI_QUIET; | |
1779 | ||
19f354d4 CH |
1780 | error = xfs_open_devices(mp, args); |
1781 | if (error) | |
1782 | goto out_put_qmops; | |
f8f15e42 | 1783 | |
c962fb79 CH |
1784 | if (xfs_icsb_init_counters(mp)) |
1785 | mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB; | |
1786 | ||
f8f15e42 CH |
1787 | /* |
1788 | * Setup flags based on mount(2) options and then the superblock | |
1789 | */ | |
1790 | error = xfs_start_flags(args, mp); | |
1791 | if (error) | |
95db4e21 | 1792 | goto out_destroy_counters; |
f8f15e42 CH |
1793 | error = xfs_readsb(mp, flags); |
1794 | if (error) | |
95db4e21 | 1795 | goto out_destroy_counters; |
f8f15e42 CH |
1796 | error = xfs_finish_flags(args, mp); |
1797 | if (error) | |
effa2eda | 1798 | goto out_free_sb; |
f8f15e42 | 1799 | |
e34b562c | 1800 | error = xfs_setup_devices(mp); |
19f354d4 | 1801 | if (error) |
effa2eda | 1802 | goto out_free_sb; |
f8f15e42 CH |
1803 | |
1804 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1805 | xfs_mountfs_check_barriers(mp); | |
1806 | ||
1807 | error = xfs_filestream_mount(mp); | |
1808 | if (error) | |
effa2eda | 1809 | goto out_free_sb; |
f8f15e42 CH |
1810 | |
1811 | error = xfs_mountfs(mp, flags); | |
1812 | if (error) | |
effa2eda | 1813 | goto out_free_sb; |
f8f15e42 CH |
1814 | |
1815 | XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname); | |
1816 | ||
1da177e4 | 1817 | sb->s_dirt = 1; |
4ca488eb CH |
1818 | sb->s_magic = XFS_SB_MAGIC; |
1819 | sb->s_blocksize = mp->m_sb.sb_blocksize; | |
1820 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; | |
1da177e4 LT |
1821 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
1822 | sb->s_time_gran = 1; | |
1823 | set_posix_acl_flag(sb); | |
1824 | ||
f3dcc13f CH |
1825 | root = igrab(mp->m_rootip->i_vnode); |
1826 | if (!root) { | |
cbc89dcf | 1827 | error = ENOENT; |
1da177e4 | 1828 | goto fail_unmount; |
cbc89dcf | 1829 | } |
f3dcc13f CH |
1830 | if (is_bad_inode(root)) { |
1831 | error = EINVAL; | |
1da177e4 LT |
1832 | goto fail_vnrele; |
1833 | } | |
f3dcc13f CH |
1834 | sb->s_root = d_alloc_root(root); |
1835 | if (!sb->s_root) { | |
1836 | error = ENOMEM; | |
1da177e4 LT |
1837 | goto fail_vnrele; |
1838 | } | |
74394496 CH |
1839 | |
1840 | mp->m_sync_work.w_syncer = xfs_sync_worker; | |
1841 | mp->m_sync_work.w_mount = mp; | |
1842 | mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd"); | |
1843 | if (IS_ERR(mp->m_sync_task)) { | |
1844 | error = -PTR_ERR(mp->m_sync_task); | |
1da177e4 | 1845 | goto fail_vnrele; |
74394496 CH |
1846 | } |
1847 | ||
cf441eeb | 1848 | xfs_itrace_exit(XFS_I(sb->s_root->d_inode)); |
1da177e4 | 1849 | |
bdd907ba | 1850 | kfree(args); |
1da177e4 LT |
1851 | return 0; |
1852 | ||
effa2eda CH |
1853 | out_free_sb: |
1854 | xfs_freesb(mp); | |
c962fb79 CH |
1855 | out_destroy_counters: |
1856 | xfs_icsb_destroy_counters(mp); | |
19f354d4 CH |
1857 | xfs_close_devices(mp); |
1858 | out_put_qmops: | |
f8f15e42 | 1859 | xfs_qmops_put(mp); |
19f354d4 | 1860 | out_put_dmops: |
f8f15e42 | 1861 | xfs_dmops_put(mp); |
c962fb79 CH |
1862 | out_free_mp: |
1863 | kfree(mp); | |
1864 | out_free_args: | |
1865 | kfree(args); | |
1866 | return -error; | |
f8f15e42 CH |
1867 | |
1868 | fail_vnrele: | |
1da177e4 LT |
1869 | if (sb->s_root) { |
1870 | dput(sb->s_root); | |
1871 | sb->s_root = NULL; | |
1872 | } else { | |
f3dcc13f | 1873 | iput(root); |
1da177e4 LT |
1874 | } |
1875 | ||
f8f15e42 | 1876 | fail_unmount: |
e48ad316 CH |
1877 | /* |
1878 | * Blow away any referenced inode in the filestreams cache. | |
1879 | * This can and will cause log traffic as inodes go inactive | |
1880 | * here. | |
1881 | */ | |
1882 | xfs_filestream_unmount(mp); | |
1883 | ||
1884 | XFS_bflush(mp->m_ddev_targp); | |
1885 | error = xfs_unmount_flush(mp, 0); | |
1886 | WARN_ON(error); | |
1887 | ||
1888 | IRELE(mp->m_rootip); | |
1889 | ||
19f354d4 | 1890 | xfs_unmountfs(mp); |
c962fb79 | 1891 | goto out_destroy_counters; |
1da177e4 LT |
1892 | } |
1893 | ||
454e2398 | 1894 | STATIC int |
a50cd269 | 1895 | xfs_fs_get_sb( |
1da177e4 LT |
1896 | struct file_system_type *fs_type, |
1897 | int flags, | |
1898 | const char *dev_name, | |
454e2398 DH |
1899 | void *data, |
1900 | struct vfsmount *mnt) | |
1da177e4 | 1901 | { |
454e2398 DH |
1902 | return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super, |
1903 | mnt); | |
a50cd269 NS |
1904 | } |
1905 | ||
7989cb8e | 1906 | static struct super_operations xfs_super_operations = { |
a50cd269 NS |
1907 | .alloc_inode = xfs_fs_alloc_inode, |
1908 | .destroy_inode = xfs_fs_destroy_inode, | |
1909 | .write_inode = xfs_fs_write_inode, | |
1910 | .clear_inode = xfs_fs_clear_inode, | |
1911 | .put_super = xfs_fs_put_super, | |
1912 | .write_super = xfs_fs_write_super, | |
1913 | .sync_fs = xfs_fs_sync_super, | |
1914 | .write_super_lockfs = xfs_fs_lockfs, | |
1915 | .statfs = xfs_fs_statfs, | |
1916 | .remount_fs = xfs_fs_remount, | |
1917 | .show_options = xfs_fs_show_options, | |
1da177e4 LT |
1918 | }; |
1919 | ||
7989cb8e | 1920 | static struct quotactl_ops xfs_quotactl_operations = { |
a50cd269 NS |
1921 | .quota_sync = xfs_fs_quotasync, |
1922 | .get_xstate = xfs_fs_getxstate, | |
1923 | .set_xstate = xfs_fs_setxstate, | |
1924 | .get_xquota = xfs_fs_getxquota, | |
1925 | .set_xquota = xfs_fs_setxquota, | |
1da177e4 LT |
1926 | }; |
1927 | ||
5085b607 | 1928 | static struct file_system_type xfs_fs_type = { |
1da177e4 LT |
1929 | .owner = THIS_MODULE, |
1930 | .name = "xfs", | |
a50cd269 | 1931 | .get_sb = xfs_fs_get_sb, |
1da177e4 LT |
1932 | .kill_sb = kill_block_super, |
1933 | .fs_flags = FS_REQUIRES_DEV, | |
1934 | }; | |
1935 | ||
1936 | ||
1937 | STATIC int __init | |
1938 | init_xfs_fs( void ) | |
1939 | { | |
1940 | int error; | |
1da177e4 LT |
1941 | static char message[] __initdata = KERN_INFO \ |
1942 | XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n"; | |
1943 | ||
1944 | printk(message); | |
1945 | ||
1da177e4 LT |
1946 | ktrace_init(64); |
1947 | ||
8758280f | 1948 | error = xfs_init_zones(); |
1da177e4 | 1949 | if (error < 0) |
0829c360 | 1950 | goto undo_zones; |
1da177e4 | 1951 | |
ce8e922c | 1952 | error = xfs_buf_init(); |
1da177e4 | 1953 | if (error < 0) |
ce8e922c | 1954 | goto undo_buffers; |
1da177e4 LT |
1955 | |
1956 | vn_init(); | |
1957 | xfs_init(); | |
1958 | uuid_init(); | |
1959 | vfs_initquota(); | |
1960 | ||
1961 | error = register_filesystem(&xfs_fs_type); | |
1962 | if (error) | |
1963 | goto undo_register; | |
1da177e4 LT |
1964 | return 0; |
1965 | ||
1966 | undo_register: | |
ce8e922c | 1967 | xfs_buf_terminate(); |
1da177e4 | 1968 | |
ce8e922c | 1969 | undo_buffers: |
8758280f | 1970 | xfs_destroy_zones(); |
1da177e4 | 1971 | |
0829c360 | 1972 | undo_zones: |
1da177e4 LT |
1973 | return error; |
1974 | } | |
1975 | ||
1976 | STATIC void __exit | |
1977 | exit_xfs_fs( void ) | |
1978 | { | |
1979 | vfs_exitquota(); | |
1da177e4 LT |
1980 | unregister_filesystem(&xfs_fs_type); |
1981 | xfs_cleanup(); | |
ce8e922c | 1982 | xfs_buf_terminate(); |
8758280f | 1983 | xfs_destroy_zones(); |
1da177e4 LT |
1984 | ktrace_uninit(); |
1985 | } | |
1986 | ||
1987 | module_init(init_xfs_fs); | |
1988 | module_exit(exit_xfs_fs); | |
1989 | ||
1990 | MODULE_AUTHOR("Silicon Graphics, Inc."); | |
1991 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); | |
1992 | MODULE_LICENSE("GPL"); |