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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: | |
189f4bf2 BN |
572 | if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb)) |
573 | inode->i_op = &xfs_dir_ci_inode_operations; | |
574 | else | |
575 | inode->i_op = &xfs_dir_inode_operations; | |
3562fd45 | 576 | inode->i_fop = &xfs_dir_file_operations; |
0432dab2 CH |
577 | break; |
578 | case S_IFLNK: | |
416c6d5b | 579 | inode->i_op = &xfs_symlink_inode_operations; |
222096ae | 580 | if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE)) |
e4c573bb | 581 | inode->i_mapping->a_ops = &xfs_address_space_operations; |
0432dab2 CH |
582 | break; |
583 | default: | |
416c6d5b | 584 | inode->i_op = &xfs_inode_operations; |
1da177e4 | 585 | init_special_inode(inode, inode->i_mode, inode->i_rdev); |
0432dab2 | 586 | break; |
1da177e4 LT |
587 | } |
588 | } | |
589 | ||
7989cb8e | 590 | STATIC_INLINE void |
1da177e4 LT |
591 | xfs_revalidate_inode( |
592 | xfs_mount_t *mp, | |
67fcaa73 | 593 | bhv_vnode_t *vp, |
1da177e4 LT |
594 | xfs_inode_t *ip) |
595 | { | |
ec86dc02 | 596 | struct inode *inode = vn_to_inode(vp); |
1da177e4 | 597 | |
0432dab2 | 598 | inode->i_mode = ip->i_d.di_mode; |
1da177e4 LT |
599 | inode->i_nlink = ip->i_d.di_nlink; |
600 | inode->i_uid = ip->i_d.di_uid; | |
601 | inode->i_gid = ip->i_d.di_gid; | |
0432dab2 CH |
602 | |
603 | switch (inode->i_mode & S_IFMT) { | |
604 | case S_IFBLK: | |
605 | case S_IFCHR: | |
606 | inode->i_rdev = | |
607 | MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff, | |
608 | sysv_minor(ip->i_df.if_u2.if_rdev)); | |
609 | break; | |
610 | default: | |
1da177e4 | 611 | inode->i_rdev = 0; |
0432dab2 | 612 | break; |
1da177e4 | 613 | } |
0432dab2 | 614 | |
1da177e4 LT |
615 | inode->i_generation = ip->i_d.di_gen; |
616 | i_size_write(inode, ip->i_d.di_size); | |
1da177e4 LT |
617 | inode->i_atime.tv_sec = ip->i_d.di_atime.t_sec; |
618 | inode->i_atime.tv_nsec = ip->i_d.di_atime.t_nsec; | |
619 | inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec; | |
620 | inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec; | |
621 | inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec; | |
622 | inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec; | |
623 | if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE) | |
624 | inode->i_flags |= S_IMMUTABLE; | |
625 | else | |
626 | inode->i_flags &= ~S_IMMUTABLE; | |
627 | if (ip->i_d.di_flags & XFS_DIFLAG_APPEND) | |
628 | inode->i_flags |= S_APPEND; | |
629 | else | |
630 | inode->i_flags &= ~S_APPEND; | |
631 | if (ip->i_d.di_flags & XFS_DIFLAG_SYNC) | |
632 | inode->i_flags |= S_SYNC; | |
633 | else | |
634 | inode->i_flags &= ~S_SYNC; | |
635 | if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME) | |
636 | inode->i_flags |= S_NOATIME; | |
637 | else | |
638 | inode->i_flags &= ~S_NOATIME; | |
b3aea4ed | 639 | xfs_iflags_clear(ip, XFS_IMODIFIED); |
1da177e4 LT |
640 | } |
641 | ||
642 | void | |
643 | xfs_initialize_vnode( | |
48c872a9 | 644 | struct xfs_mount *mp, |
67fcaa73 | 645 | bhv_vnode_t *vp, |
745f6919 | 646 | struct xfs_inode *ip) |
1da177e4 | 647 | { |
ec86dc02 | 648 | struct inode *inode = vn_to_inode(vp); |
1da177e4 | 649 | |
739bfb2a | 650 | if (!ip->i_vnode) { |
739bfb2a CH |
651 | ip->i_vnode = vp; |
652 | inode->i_private = ip; | |
1da177e4 LT |
653 | } |
654 | ||
655 | /* | |
656 | * We need to set the ops vectors, and unlock the inode, but if | |
657 | * we have been called during the new inode create process, it is | |
658 | * too early to fill in the Linux inode. We will get called a | |
659 | * second time once the inode is properly set up, and then we can | |
660 | * finish our work. | |
661 | */ | |
745f6919 | 662 | if (ip->i_d.di_mode != 0 && (inode->i_state & I_NEW)) { |
48c872a9 | 663 | xfs_revalidate_inode(mp, vp, ip); |
1da177e4 | 664 | xfs_set_inodeops(inode); |
ec86dc02 | 665 | |
7a18c386 | 666 | xfs_iflags_clear(ip, XFS_INEW); |
1da177e4 LT |
667 | barrier(); |
668 | ||
669 | unlock_new_inode(inode); | |
670 | } | |
671 | } | |
672 | ||
673 | int | |
674 | xfs_blkdev_get( | |
675 | xfs_mount_t *mp, | |
676 | const char *name, | |
677 | struct block_device **bdevp) | |
678 | { | |
679 | int error = 0; | |
680 | ||
681 | *bdevp = open_bdev_excl(name, 0, mp); | |
682 | if (IS_ERR(*bdevp)) { | |
683 | error = PTR_ERR(*bdevp); | |
684 | printk("XFS: Invalid device [%s], error=%d\n", name, error); | |
685 | } | |
686 | ||
687 | return -error; | |
688 | } | |
689 | ||
690 | void | |
691 | xfs_blkdev_put( | |
692 | struct block_device *bdev) | |
693 | { | |
694 | if (bdev) | |
695 | close_bdev_excl(bdev); | |
696 | } | |
697 | ||
f538d4da CH |
698 | /* |
699 | * Try to write out the superblock using barriers. | |
700 | */ | |
701 | STATIC int | |
702 | xfs_barrier_test( | |
703 | xfs_mount_t *mp) | |
704 | { | |
705 | xfs_buf_t *sbp = xfs_getsb(mp, 0); | |
706 | int error; | |
707 | ||
708 | XFS_BUF_UNDONE(sbp); | |
709 | XFS_BUF_UNREAD(sbp); | |
710 | XFS_BUF_UNDELAYWRITE(sbp); | |
711 | XFS_BUF_WRITE(sbp); | |
712 | XFS_BUF_UNASYNC(sbp); | |
713 | XFS_BUF_ORDERED(sbp); | |
714 | ||
715 | xfsbdstrat(mp, sbp); | |
716 | error = xfs_iowait(sbp); | |
717 | ||
718 | /* | |
719 | * Clear all the flags we set and possible error state in the | |
720 | * buffer. We only did the write to try out whether barriers | |
721 | * worked and shouldn't leave any traces in the superblock | |
722 | * buffer. | |
723 | */ | |
724 | XFS_BUF_DONE(sbp); | |
725 | XFS_BUF_ERROR(sbp, 0); | |
726 | XFS_BUF_UNORDERED(sbp); | |
727 | ||
728 | xfs_buf_relse(sbp); | |
729 | return error; | |
730 | } | |
731 | ||
732 | void | |
733 | xfs_mountfs_check_barriers(xfs_mount_t *mp) | |
734 | { | |
735 | int error; | |
736 | ||
737 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
738 | xfs_fs_cmn_err(CE_NOTE, mp, | |
739 | "Disabling barriers, not supported with external log device"); | |
740 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 741 | return; |
f538d4da CH |
742 | } |
743 | ||
ce8e922c | 744 | if (mp->m_ddev_targp->bt_bdev->bd_disk->queue->ordered == |
f538d4da CH |
745 | QUEUE_ORDERED_NONE) { |
746 | xfs_fs_cmn_err(CE_NOTE, mp, | |
747 | "Disabling barriers, not supported by the underlying device"); | |
748 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 749 | return; |
f538d4da CH |
750 | } |
751 | ||
b2ea401b NS |
752 | if (xfs_readonly_buftarg(mp->m_ddev_targp)) { |
753 | xfs_fs_cmn_err(CE_NOTE, mp, | |
754 | "Disabling barriers, underlying device is readonly"); | |
755 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
756 | return; | |
757 | } | |
758 | ||
f538d4da CH |
759 | error = xfs_barrier_test(mp); |
760 | if (error) { | |
761 | xfs_fs_cmn_err(CE_NOTE, mp, | |
762 | "Disabling barriers, trial barrier write failed"); | |
763 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 764 | return; |
f538d4da CH |
765 | } |
766 | } | |
767 | ||
768 | void | |
769 | xfs_blkdev_issue_flush( | |
770 | xfs_buftarg_t *buftarg) | |
771 | { | |
ce8e922c | 772 | blkdev_issue_flush(buftarg->bt_bdev, NULL); |
f538d4da | 773 | } |
1da177e4 | 774 | |
19f354d4 CH |
775 | STATIC void |
776 | xfs_close_devices( | |
777 | struct xfs_mount *mp) | |
778 | { | |
779 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
780 | xfs_free_buftarg(mp->m_logdev_targp); | |
781 | xfs_blkdev_put(mp->m_logdev_targp->bt_bdev); | |
782 | } | |
783 | if (mp->m_rtdev_targp) { | |
784 | xfs_free_buftarg(mp->m_rtdev_targp); | |
785 | xfs_blkdev_put(mp->m_rtdev_targp->bt_bdev); | |
786 | } | |
787 | xfs_free_buftarg(mp->m_ddev_targp); | |
788 | } | |
789 | ||
790 | /* | |
791 | * The file system configurations are: | |
792 | * (1) device (partition) with data and internal log | |
793 | * (2) logical volume with data and log subvolumes. | |
794 | * (3) logical volume with data, log, and realtime subvolumes. | |
795 | * | |
796 | * We only have to handle opening the log and realtime volumes here if | |
797 | * they are present. The data subvolume has already been opened by | |
798 | * get_sb_bdev() and is stored in sb->s_bdev. | |
799 | */ | |
800 | STATIC int | |
801 | xfs_open_devices( | |
802 | struct xfs_mount *mp, | |
803 | struct xfs_mount_args *args) | |
804 | { | |
805 | struct block_device *ddev = mp->m_super->s_bdev; | |
806 | struct block_device *logdev = NULL, *rtdev = NULL; | |
807 | int error; | |
808 | ||
809 | /* | |
810 | * Open real time and log devices - order is important. | |
811 | */ | |
812 | if (args->logname[0]) { | |
813 | error = xfs_blkdev_get(mp, args->logname, &logdev); | |
814 | if (error) | |
815 | goto out; | |
816 | } | |
817 | ||
818 | if (args->rtname[0]) { | |
819 | error = xfs_blkdev_get(mp, args->rtname, &rtdev); | |
820 | if (error) | |
821 | goto out_close_logdev; | |
822 | ||
823 | if (rtdev == ddev || rtdev == logdev) { | |
824 | cmn_err(CE_WARN, | |
825 | "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev."); | |
826 | error = EINVAL; | |
827 | goto out_close_rtdev; | |
828 | } | |
829 | } | |
830 | ||
831 | /* | |
832 | * Setup xfs_mount buffer target pointers | |
833 | */ | |
834 | error = ENOMEM; | |
835 | mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0); | |
836 | if (!mp->m_ddev_targp) | |
837 | goto out_close_rtdev; | |
838 | ||
839 | if (rtdev) { | |
840 | mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1); | |
841 | if (!mp->m_rtdev_targp) | |
842 | goto out_free_ddev_targ; | |
843 | } | |
844 | ||
845 | if (logdev && logdev != ddev) { | |
846 | mp->m_logdev_targp = xfs_alloc_buftarg(logdev, 1); | |
847 | if (!mp->m_logdev_targp) | |
848 | goto out_free_rtdev_targ; | |
849 | } else { | |
850 | mp->m_logdev_targp = mp->m_ddev_targp; | |
851 | } | |
852 | ||
853 | return 0; | |
854 | ||
855 | out_free_rtdev_targ: | |
856 | if (mp->m_rtdev_targp) | |
857 | xfs_free_buftarg(mp->m_rtdev_targp); | |
858 | out_free_ddev_targ: | |
859 | xfs_free_buftarg(mp->m_ddev_targp); | |
860 | out_close_rtdev: | |
861 | if (rtdev) | |
862 | xfs_blkdev_put(rtdev); | |
863 | out_close_logdev: | |
864 | if (logdev && logdev != ddev) | |
865 | xfs_blkdev_put(logdev); | |
866 | out: | |
867 | return error; | |
868 | } | |
869 | ||
e34b562c CH |
870 | /* |
871 | * Setup xfs_mount buffer target pointers based on superblock | |
872 | */ | |
873 | STATIC int | |
874 | xfs_setup_devices( | |
875 | struct xfs_mount *mp) | |
876 | { | |
877 | int error; | |
19f354d4 | 878 | |
e34b562c CH |
879 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
880 | mp->m_sb.sb_sectsize); | |
881 | if (error) | |
882 | return error; | |
883 | ||
884 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
885 | unsigned int log_sector_size = BBSIZE; | |
886 | ||
887 | if (xfs_sb_version_hassector(&mp->m_sb)) | |
888 | log_sector_size = mp->m_sb.sb_logsectsize; | |
889 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | |
890 | mp->m_sb.sb_blocksize, | |
891 | log_sector_size); | |
892 | if (error) | |
893 | return error; | |
894 | } | |
895 | if (mp->m_rtdev_targp) { | |
896 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | |
897 | mp->m_sb.sb_blocksize, | |
898 | mp->m_sb.sb_sectsize); | |
899 | if (error) | |
900 | return error; | |
901 | } | |
902 | ||
903 | return 0; | |
904 | } | |
19f354d4 | 905 | |
249a8c11 DC |
906 | /* |
907 | * XFS AIL push thread support | |
908 | */ | |
909 | void | |
910 | xfsaild_wakeup( | |
911 | xfs_mount_t *mp, | |
912 | xfs_lsn_t threshold_lsn) | |
913 | { | |
914 | mp->m_ail.xa_target = threshold_lsn; | |
915 | wake_up_process(mp->m_ail.xa_task); | |
916 | } | |
917 | ||
918 | int | |
919 | xfsaild( | |
920 | void *data) | |
921 | { | |
922 | xfs_mount_t *mp = (xfs_mount_t *)data; | |
923 | xfs_lsn_t last_pushed_lsn = 0; | |
924 | long tout = 0; | |
925 | ||
926 | while (!kthread_should_stop()) { | |
927 | if (tout) | |
928 | schedule_timeout_interruptible(msecs_to_jiffies(tout)); | |
929 | tout = 1000; | |
930 | ||
931 | /* swsusp */ | |
932 | try_to_freeze(); | |
933 | ||
934 | ASSERT(mp->m_log); | |
935 | if (XFS_FORCED_SHUTDOWN(mp)) | |
936 | continue; | |
937 | ||
938 | tout = xfsaild_push(mp, &last_pushed_lsn); | |
939 | } | |
940 | ||
941 | return 0; | |
942 | } /* xfsaild */ | |
943 | ||
944 | int | |
945 | xfsaild_start( | |
946 | xfs_mount_t *mp) | |
947 | { | |
948 | mp->m_ail.xa_target = 0; | |
949 | mp->m_ail.xa_task = kthread_run(xfsaild, mp, "xfsaild"); | |
950 | if (IS_ERR(mp->m_ail.xa_task)) | |
951 | return -PTR_ERR(mp->m_ail.xa_task); | |
952 | return 0; | |
953 | } | |
954 | ||
955 | void | |
956 | xfsaild_stop( | |
957 | xfs_mount_t *mp) | |
958 | { | |
959 | kthread_stop(mp->m_ail.xa_task); | |
960 | } | |
961 | ||
962 | ||
963 | ||
1da177e4 | 964 | STATIC struct inode * |
a50cd269 | 965 | xfs_fs_alloc_inode( |
1da177e4 LT |
966 | struct super_block *sb) |
967 | { | |
67fcaa73 | 968 | bhv_vnode_t *vp; |
1da177e4 | 969 | |
8758280f NS |
970 | vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP); |
971 | if (unlikely(!vp)) | |
1da177e4 | 972 | return NULL; |
ec86dc02 | 973 | return vn_to_inode(vp); |
1da177e4 LT |
974 | } |
975 | ||
976 | STATIC void | |
a50cd269 | 977 | xfs_fs_destroy_inode( |
1da177e4 LT |
978 | struct inode *inode) |
979 | { | |
ec86dc02 | 980 | kmem_zone_free(xfs_vnode_zone, vn_from_inode(inode)); |
1da177e4 LT |
981 | } |
982 | ||
983 | STATIC void | |
a50cd269 | 984 | xfs_fs_inode_init_once( |
4ba9b9d0 | 985 | void *vnode) |
1da177e4 | 986 | { |
a35afb83 | 987 | inode_init_once(vn_to_inode((bhv_vnode_t *)vnode)); |
1da177e4 LT |
988 | } |
989 | ||
de2eeea6 | 990 | STATIC int __init |
8758280f | 991 | xfs_init_zones(void) |
1da177e4 | 992 | { |
67fcaa73 | 993 | xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode", |
e0cc2325 NS |
994 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | |
995 | KM_ZONE_SPREAD, | |
a50cd269 | 996 | xfs_fs_inode_init_once); |
0829c360 CH |
997 | if (!xfs_vnode_zone) |
998 | goto out; | |
999 | ||
1000 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); | |
1001 | if (!xfs_ioend_zone) | |
1002 | goto out_destroy_vnode_zone; | |
1003 | ||
93d2341c MD |
1004 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, |
1005 | xfs_ioend_zone); | |
0829c360 CH |
1006 | if (!xfs_ioend_pool) |
1007 | goto out_free_ioend_zone; | |
1da177e4 | 1008 | return 0; |
0829c360 | 1009 | |
0829c360 CH |
1010 | out_free_ioend_zone: |
1011 | kmem_zone_destroy(xfs_ioend_zone); | |
1012 | out_destroy_vnode_zone: | |
1013 | kmem_zone_destroy(xfs_vnode_zone); | |
1014 | out: | |
1015 | return -ENOMEM; | |
1da177e4 LT |
1016 | } |
1017 | ||
1018 | STATIC void | |
8758280f | 1019 | xfs_destroy_zones(void) |
1da177e4 | 1020 | { |
0829c360 CH |
1021 | mempool_destroy(xfs_ioend_pool); |
1022 | kmem_zone_destroy(xfs_vnode_zone); | |
1023 | kmem_zone_destroy(xfs_ioend_zone); | |
1da177e4 LT |
1024 | } |
1025 | ||
1026 | /* | |
1027 | * Attempt to flush the inode, this will actually fail | |
1028 | * if the inode is pinned, but we dirty the inode again | |
1029 | * at the point when it is unpinned after a log write, | |
8758280f | 1030 | * since this is when the inode itself becomes flushable. |
1da177e4 LT |
1031 | */ |
1032 | STATIC int | |
a50cd269 | 1033 | xfs_fs_write_inode( |
1da177e4 LT |
1034 | struct inode *inode, |
1035 | int sync) | |
1036 | { | |
a3f74ffb DC |
1037 | int error = 0; |
1038 | int flags = 0; | |
1da177e4 | 1039 | |
cf441eeb | 1040 | xfs_itrace_entry(XFS_I(inode)); |
739bfb2a CH |
1041 | if (sync) { |
1042 | filemap_fdatawait(inode->i_mapping); | |
1043 | flags |= FLUSH_SYNC; | |
1da177e4 | 1044 | } |
739bfb2a | 1045 | error = xfs_inode_flush(XFS_I(inode), flags); |
e893bffd LM |
1046 | /* |
1047 | * if we failed to write out the inode then mark | |
1048 | * it dirty again so we'll try again later. | |
1049 | */ | |
1050 | if (error) | |
1051 | mark_inode_dirty_sync(inode); | |
739bfb2a | 1052 | |
1da177e4 LT |
1053 | return -error; |
1054 | } | |
1055 | ||
1056 | STATIC void | |
a50cd269 | 1057 | xfs_fs_clear_inode( |
1da177e4 LT |
1058 | struct inode *inode) |
1059 | { | |
1543d79c | 1060 | xfs_inode_t *ip = XFS_I(inode); |
56d433e4 | 1061 | |
02ba71de | 1062 | /* |
1543d79c | 1063 | * ip can be null when xfs_iget_core calls xfs_idestroy if we |
02ba71de CH |
1064 | * find an inode with di_mode == 0 but without IGET_CREATE set. |
1065 | */ | |
1543d79c | 1066 | if (ip) { |
cf441eeb | 1067 | xfs_itrace_entry(ip); |
1543d79c CH |
1068 | XFS_STATS_INC(vn_rele); |
1069 | XFS_STATS_INC(vn_remove); | |
1070 | XFS_STATS_INC(vn_reclaim); | |
1071 | XFS_STATS_DEC(vn_active); | |
1072 | ||
1073 | xfs_inactive(ip); | |
1074 | xfs_iflags_clear(ip, XFS_IMODIFIED); | |
1075 | if (xfs_reclaim(ip)) | |
34a622b2 | 1076 | panic("%s: cannot reclaim 0x%p\n", __func__, inode); |
b3aea4ed | 1077 | } |
56d433e4 | 1078 | |
739bfb2a | 1079 | ASSERT(XFS_I(inode) == NULL); |
56d433e4 | 1080 | } |
1da177e4 LT |
1081 | |
1082 | /* | |
1083 | * Enqueue a work item to be picked up by the vfs xfssyncd thread. | |
1084 | * Doing this has two advantages: | |
1085 | * - It saves on stack space, which is tight in certain situations | |
1086 | * - It can be used (with care) as a mechanism to avoid deadlocks. | |
1087 | * Flushing while allocating in a full filesystem requires both. | |
1088 | */ | |
1089 | STATIC void | |
1090 | xfs_syncd_queue_work( | |
74394496 | 1091 | struct xfs_mount *mp, |
1da177e4 | 1092 | void *data, |
74394496 | 1093 | void (*syncer)(struct xfs_mount *, void *)) |
1da177e4 | 1094 | { |
b83bd138 | 1095 | struct bhv_vfs_sync_work *work; |
1da177e4 | 1096 | |
b83bd138 | 1097 | work = kmem_alloc(sizeof(struct bhv_vfs_sync_work), KM_SLEEP); |
1da177e4 LT |
1098 | INIT_LIST_HEAD(&work->w_list); |
1099 | work->w_syncer = syncer; | |
1100 | work->w_data = data; | |
74394496 CH |
1101 | work->w_mount = mp; |
1102 | spin_lock(&mp->m_sync_lock); | |
1103 | list_add_tail(&work->w_list, &mp->m_sync_list); | |
1104 | spin_unlock(&mp->m_sync_lock); | |
1105 | wake_up_process(mp->m_sync_task); | |
1da177e4 LT |
1106 | } |
1107 | ||
1108 | /* | |
1109 | * Flush delayed allocate data, attempting to free up reserved space | |
1110 | * from existing allocations. At this point a new allocation attempt | |
1111 | * has failed with ENOSPC and we are in the process of scratching our | |
1112 | * heads, looking about for more room... | |
1113 | */ | |
1114 | STATIC void | |
1115 | xfs_flush_inode_work( | |
74394496 CH |
1116 | struct xfs_mount *mp, |
1117 | void *arg) | |
1da177e4 | 1118 | { |
74394496 CH |
1119 | struct inode *inode = arg; |
1120 | filemap_flush(inode->i_mapping); | |
1121 | iput(inode); | |
1da177e4 LT |
1122 | } |
1123 | ||
1124 | void | |
1125 | xfs_flush_inode( | |
1126 | xfs_inode_t *ip) | |
1127 | { | |
74394496 | 1128 | struct inode *inode = ip->i_vnode; |
1da177e4 LT |
1129 | |
1130 | igrab(inode); | |
74394496 | 1131 | xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work); |
041e0e3b | 1132 | delay(msecs_to_jiffies(500)); |
1da177e4 LT |
1133 | } |
1134 | ||
1135 | /* | |
1136 | * This is the "bigger hammer" version of xfs_flush_inode_work... | |
1137 | * (IOW, "If at first you don't succeed, use a Bigger Hammer"). | |
1138 | */ | |
1139 | STATIC void | |
1140 | xfs_flush_device_work( | |
74394496 CH |
1141 | struct xfs_mount *mp, |
1142 | void *arg) | |
1da177e4 | 1143 | { |
74394496 | 1144 | struct inode *inode = arg; |
b267ce99 | 1145 | sync_blockdev(mp->m_super->s_bdev); |
74394496 | 1146 | iput(inode); |
1da177e4 LT |
1147 | } |
1148 | ||
1149 | void | |
1150 | xfs_flush_device( | |
1151 | xfs_inode_t *ip) | |
1152 | { | |
ec86dc02 | 1153 | struct inode *inode = vn_to_inode(XFS_ITOV(ip)); |
1da177e4 LT |
1154 | |
1155 | igrab(inode); | |
74394496 | 1156 | xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work); |
041e0e3b | 1157 | delay(msecs_to_jiffies(500)); |
1da177e4 LT |
1158 | xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC); |
1159 | } | |
1160 | ||
1da177e4 | 1161 | STATIC void |
74394496 CH |
1162 | xfs_sync_worker( |
1163 | struct xfs_mount *mp, | |
1da177e4 LT |
1164 | void *unused) |
1165 | { | |
1166 | int error; | |
1167 | ||
74394496 | 1168 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) |
7e20694d | 1169 | error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR); |
74394496 CH |
1170 | mp->m_sync_seq++; |
1171 | wake_up(&mp->m_wait_single_sync_task); | |
1da177e4 LT |
1172 | } |
1173 | ||
1174 | STATIC int | |
1175 | xfssyncd( | |
1176 | void *arg) | |
1177 | { | |
74394496 | 1178 | struct xfs_mount *mp = arg; |
1da177e4 | 1179 | long timeleft; |
b83bd138 | 1180 | bhv_vfs_sync_work_t *work, *n; |
4df08c52 | 1181 | LIST_HEAD (tmp); |
1da177e4 | 1182 | |
83144186 | 1183 | set_freezable(); |
041e0e3b | 1184 | timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10); |
1da177e4 | 1185 | for (;;) { |
041e0e3b | 1186 | timeleft = schedule_timeout_interruptible(timeleft); |
1da177e4 | 1187 | /* swsusp */ |
3e1d1d28 | 1188 | try_to_freeze(); |
74394496 | 1189 | if (kthread_should_stop() && list_empty(&mp->m_sync_list)) |
1da177e4 LT |
1190 | break; |
1191 | ||
74394496 | 1192 | spin_lock(&mp->m_sync_lock); |
1da177e4 LT |
1193 | /* |
1194 | * We can get woken by laptop mode, to do a sync - | |
1195 | * that's the (only!) case where the list would be | |
1196 | * empty with time remaining. | |
1197 | */ | |
74394496 | 1198 | if (!timeleft || list_empty(&mp->m_sync_list)) { |
1da177e4 | 1199 | if (!timeleft) |
041e0e3b NA |
1200 | timeleft = xfs_syncd_centisecs * |
1201 | msecs_to_jiffies(10); | |
74394496 CH |
1202 | INIT_LIST_HEAD(&mp->m_sync_work.w_list); |
1203 | list_add_tail(&mp->m_sync_work.w_list, | |
1204 | &mp->m_sync_list); | |
1da177e4 | 1205 | } |
74394496 | 1206 | list_for_each_entry_safe(work, n, &mp->m_sync_list, w_list) |
1da177e4 | 1207 | list_move(&work->w_list, &tmp); |
74394496 | 1208 | spin_unlock(&mp->m_sync_lock); |
1da177e4 LT |
1209 | |
1210 | list_for_each_entry_safe(work, n, &tmp, w_list) { | |
74394496 | 1211 | (*work->w_syncer)(mp, work->w_data); |
1da177e4 | 1212 | list_del(&work->w_list); |
74394496 | 1213 | if (work == &mp->m_sync_work) |
1da177e4 | 1214 | continue; |
f0e2d93c | 1215 | kmem_free(work); |
1da177e4 LT |
1216 | } |
1217 | } | |
1218 | ||
1da177e4 LT |
1219 | return 0; |
1220 | } | |
1221 | ||
1da177e4 | 1222 | STATIC void |
a50cd269 | 1223 | xfs_fs_put_super( |
1da177e4 LT |
1224 | struct super_block *sb) |
1225 | { | |
745f6919 | 1226 | struct xfs_mount *mp = XFS_M(sb); |
e48ad316 CH |
1227 | struct xfs_inode *rip = mp->m_rootip; |
1228 | int unmount_event_flags = 0; | |
1da177e4 LT |
1229 | int error; |
1230 | ||
74394496 CH |
1231 | kthread_stop(mp->m_sync_task); |
1232 | ||
745f6919 | 1233 | xfs_sync(mp, SYNC_ATTR | SYNC_DELWRI); |
e48ad316 CH |
1234 | |
1235 | #ifdef HAVE_DMAPI | |
1236 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1237 | unmount_event_flags = | |
1238 | (mp->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? | |
1239 | 0 : DM_FLAGS_UNWANTED; | |
1240 | /* | |
1241 | * Ignore error from dmapi here, first unmount is not allowed | |
1242 | * to fail anyway, and second we wouldn't want to fail a | |
1243 | * unmount because of dmapi. | |
1244 | */ | |
1245 | XFS_SEND_PREUNMOUNT(mp, rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL, | |
1246 | NULL, NULL, 0, 0, unmount_event_flags); | |
1247 | } | |
1248 | #endif | |
1249 | ||
1250 | /* | |
1251 | * Blow away any referenced inode in the filestreams cache. | |
1252 | * This can and will cause log traffic as inodes go inactive | |
1253 | * here. | |
1254 | */ | |
1255 | xfs_filestream_unmount(mp); | |
1256 | ||
1257 | XFS_bflush(mp->m_ddev_targp); | |
1258 | error = xfs_unmount_flush(mp, 0); | |
1259 | WARN_ON(error); | |
1260 | ||
1261 | IRELE(rip); | |
1262 | ||
1263 | /* | |
1264 | * If we're forcing a shutdown, typically because of a media error, | |
1265 | * we want to make sure we invalidate dirty pages that belong to | |
1266 | * referenced vnodes as well. | |
1267 | */ | |
1268 | if (XFS_FORCED_SHUTDOWN(mp)) { | |
1269 | error = xfs_sync(mp, SYNC_WAIT | SYNC_CLOSE); | |
1270 | ASSERT(error != EFSCORRUPTED); | |
1271 | } | |
1272 | ||
1273 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1274 | XFS_SEND_UNMOUNT(mp, rip, DM_RIGHT_NULL, 0, 0, | |
1275 | unmount_event_flags); | |
1276 | } | |
1277 | ||
19f354d4 | 1278 | xfs_unmountfs(mp); |
c962fb79 | 1279 | xfs_icsb_destroy_counters(mp); |
19f354d4 | 1280 | xfs_close_devices(mp); |
e48ad316 CH |
1281 | xfs_qmops_put(mp); |
1282 | xfs_dmops_put(mp); | |
c962fb79 | 1283 | kfree(mp); |
1da177e4 LT |
1284 | } |
1285 | ||
1286 | STATIC void | |
a50cd269 | 1287 | xfs_fs_write_super( |
1da177e4 LT |
1288 | struct super_block *sb) |
1289 | { | |
b83bd138 | 1290 | if (!(sb->s_flags & MS_RDONLY)) |
745f6919 | 1291 | xfs_sync(XFS_M(sb), SYNC_FSDATA); |
1da177e4 LT |
1292 | sb->s_dirt = 0; |
1293 | } | |
1294 | ||
1295 | STATIC int | |
a50cd269 | 1296 | xfs_fs_sync_super( |
1da177e4 LT |
1297 | struct super_block *sb, |
1298 | int wait) | |
1299 | { | |
745f6919 | 1300 | struct xfs_mount *mp = XFS_M(sb); |
b83bd138 NS |
1301 | int error; |
1302 | int flags; | |
1da177e4 | 1303 | |
e893bffd LM |
1304 | /* |
1305 | * Treat a sync operation like a freeze. This is to work | |
1306 | * around a race in sync_inodes() which works in two phases | |
1307 | * - an asynchronous flush, which can write out an inode | |
1308 | * without waiting for file size updates to complete, and a | |
1309 | * synchronous flush, which wont do anything because the | |
1310 | * async flush removed the inode's dirty flag. Also | |
1311 | * sync_inodes() will not see any files that just have | |
1312 | * outstanding transactions to be flushed because we don't | |
1313 | * dirty the Linux inode until after the transaction I/O | |
1314 | * completes. | |
1315 | */ | |
1316 | if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) { | |
2823945f DC |
1317 | /* |
1318 | * First stage of freeze - no more writers will make progress | |
1319 | * now we are here, so we flush delwri and delalloc buffers | |
1320 | * here, then wait for all I/O to complete. Data is frozen at | |
1321 | * that point. Metadata is not frozen, transactions can still | |
1322 | * occur here so don't bother flushing the buftarg (i.e | |
1323 | * SYNC_QUIESCE) because it'll just get dirty again. | |
1324 | */ | |
516b2e7c | 1325 | flags = SYNC_DATA_QUIESCE; |
2823945f | 1326 | } else |
e893bffd | 1327 | flags = SYNC_FSDATA; |
1da177e4 | 1328 | |
745f6919 | 1329 | error = xfs_sync(mp, flags); |
1da177e4 LT |
1330 | sb->s_dirt = 0; |
1331 | ||
1332 | if (unlikely(laptop_mode)) { | |
74394496 | 1333 | int prev_sync_seq = mp->m_sync_seq; |
1da177e4 LT |
1334 | |
1335 | /* | |
1336 | * The disk must be active because we're syncing. | |
1337 | * We schedule xfssyncd now (now that the disk is | |
1338 | * active) instead of later (when it might not be). | |
1339 | */ | |
74394496 | 1340 | wake_up_process(mp->m_sync_task); |
1da177e4 LT |
1341 | /* |
1342 | * We have to wait for the sync iteration to complete. | |
1343 | * If we don't, the disk activity caused by the sync | |
1344 | * will come after the sync is completed, and that | |
1345 | * triggers another sync from laptop mode. | |
1346 | */ | |
74394496 CH |
1347 | wait_event(mp->m_wait_single_sync_task, |
1348 | mp->m_sync_seq != prev_sync_seq); | |
1da177e4 LT |
1349 | } |
1350 | ||
1351 | return -error; | |
1352 | } | |
1353 | ||
1354 | STATIC int | |
a50cd269 | 1355 | xfs_fs_statfs( |
726c3342 | 1356 | struct dentry *dentry, |
1da177e4 LT |
1357 | struct kstatfs *statp) |
1358 | { | |
4ca488eb CH |
1359 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
1360 | xfs_sb_t *sbp = &mp->m_sb; | |
1361 | __uint64_t fakeinos, id; | |
1362 | xfs_extlen_t lsize; | |
1363 | ||
1364 | statp->f_type = XFS_SB_MAGIC; | |
1365 | statp->f_namelen = MAXNAMELEN - 1; | |
1366 | ||
1367 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); | |
1368 | statp->f_fsid.val[0] = (u32)id; | |
1369 | statp->f_fsid.val[1] = (u32)(id >> 32); | |
1370 | ||
d4d90b57 | 1371 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
4ca488eb CH |
1372 | |
1373 | spin_lock(&mp->m_sb_lock); | |
1374 | statp->f_bsize = sbp->sb_blocksize; | |
1375 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; | |
1376 | statp->f_blocks = sbp->sb_dblocks - lsize; | |
1377 | statp->f_bfree = statp->f_bavail = | |
1378 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); | |
1379 | fakeinos = statp->f_bfree << sbp->sb_inopblog; | |
1380 | #if XFS_BIG_INUMS | |
1381 | fakeinos += mp->m_inoadd; | |
1382 | #endif | |
1383 | statp->f_files = | |
1384 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); | |
1385 | if (mp->m_maxicount) | |
1386 | #if XFS_BIG_INUMS | |
1387 | if (!mp->m_inoadd) | |
1388 | #endif | |
1389 | statp->f_files = min_t(typeof(statp->f_files), | |
1390 | statp->f_files, | |
1391 | mp->m_maxicount); | |
1392 | statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); | |
1393 | spin_unlock(&mp->m_sb_lock); | |
1394 | ||
1395 | XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp); | |
1396 | return 0; | |
1da177e4 LT |
1397 | } |
1398 | ||
1399 | STATIC int | |
a50cd269 | 1400 | xfs_fs_remount( |
1da177e4 LT |
1401 | struct super_block *sb, |
1402 | int *flags, | |
1403 | char *options) | |
1404 | { | |
745f6919 | 1405 | struct xfs_mount *mp = XFS_M(sb); |
bdd907ba | 1406 | struct xfs_mount_args *args; |
1da177e4 LT |
1407 | int error; |
1408 | ||
bdd907ba CH |
1409 | args = xfs_args_allocate(sb, 0); |
1410 | if (!args) | |
1411 | return -ENOMEM; | |
1412 | ||
745f6919 | 1413 | error = xfs_parseargs(mp, options, args, 1); |
48b62a1a CH |
1414 | if (error) |
1415 | goto out_free_args; | |
1416 | ||
1417 | if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */ | |
1418 | if (mp->m_flags & XFS_MOUNT_RDONLY) | |
1419 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | |
1420 | if (args->flags & XFSMNT_BARRIER) { | |
1421 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
1422 | xfs_mountfs_check_barriers(mp); | |
1423 | } else { | |
1424 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
1425 | } | |
1426 | } else if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { /* rw -> ro */ | |
1427 | xfs_filestream_flush(mp); | |
1428 | xfs_sync(mp, SYNC_DATA_QUIESCE); | |
1429 | xfs_attr_quiesce(mp); | |
1430 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1431 | } | |
1432 | ||
1433 | out_free_args: | |
bdd907ba | 1434 | kfree(args); |
1da177e4 LT |
1435 | return -error; |
1436 | } | |
1437 | ||
9909c4aa CH |
1438 | /* |
1439 | * Second stage of a freeze. The data is already frozen so we only | |
1440 | * need to take care of themetadata. Once that's done write a dummy | |
1441 | * record to dirty the log in case of a crash while frozen. | |
1442 | */ | |
1da177e4 | 1443 | STATIC void |
a50cd269 | 1444 | xfs_fs_lockfs( |
1da177e4 LT |
1445 | struct super_block *sb) |
1446 | { | |
9909c4aa CH |
1447 | struct xfs_mount *mp = XFS_M(sb); |
1448 | ||
1449 | xfs_attr_quiesce(mp); | |
1450 | xfs_fs_log_dummy(mp); | |
1da177e4 LT |
1451 | } |
1452 | ||
1453 | STATIC int | |
a50cd269 | 1454 | xfs_fs_show_options( |
1da177e4 LT |
1455 | struct seq_file *m, |
1456 | struct vfsmount *mnt) | |
1457 | { | |
745f6919 | 1458 | return -xfs_showargs(XFS_M(mnt->mnt_sb), m); |
1da177e4 LT |
1459 | } |
1460 | ||
ee34807a | 1461 | STATIC int |
a50cd269 | 1462 | xfs_fs_quotasync( |
ee34807a NS |
1463 | struct super_block *sb, |
1464 | int type) | |
1465 | { | |
b09cc771 | 1466 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL); |
ee34807a NS |
1467 | } |
1468 | ||
1da177e4 | 1469 | STATIC int |
a50cd269 | 1470 | xfs_fs_getxstate( |
1da177e4 LT |
1471 | struct super_block *sb, |
1472 | struct fs_quota_stat *fqs) | |
1473 | { | |
b09cc771 | 1474 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs); |
1da177e4 LT |
1475 | } |
1476 | ||
1477 | STATIC int | |
a50cd269 | 1478 | xfs_fs_setxstate( |
1da177e4 LT |
1479 | struct super_block *sb, |
1480 | unsigned int flags, | |
1481 | int op) | |
1482 | { | |
b09cc771 | 1483 | return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags); |
1da177e4 LT |
1484 | } |
1485 | ||
1486 | STATIC int | |
a50cd269 | 1487 | xfs_fs_getxquota( |
1da177e4 LT |
1488 | struct super_block *sb, |
1489 | int type, | |
1490 | qid_t id, | |
1491 | struct fs_disk_quota *fdq) | |
1492 | { | |
b09cc771 | 1493 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1494 | (type == USRQUOTA) ? Q_XGETQUOTA : |
1495 | ((type == GRPQUOTA) ? Q_XGETGQUOTA : | |
1496 | Q_XGETPQUOTA), id, (caddr_t)fdq); | |
1da177e4 LT |
1497 | } |
1498 | ||
1499 | STATIC int | |
a50cd269 | 1500 | xfs_fs_setxquota( |
1da177e4 LT |
1501 | struct super_block *sb, |
1502 | int type, | |
1503 | qid_t id, | |
1504 | struct fs_disk_quota *fdq) | |
1505 | { | |
b09cc771 | 1506 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1507 | (type == USRQUOTA) ? Q_XSETQLIM : |
1508 | ((type == GRPQUOTA) ? Q_XSETGQLIM : | |
1509 | Q_XSETPQLIM), id, (caddr_t)fdq); | |
1da177e4 LT |
1510 | } |
1511 | ||
f8f15e42 CH |
1512 | /* |
1513 | * This function fills in xfs_mount_t fields based on mount args. | |
1514 | * Note: the superblock has _not_ yet been read in. | |
1515 | */ | |
1516 | STATIC int | |
1517 | xfs_start_flags( | |
1518 | struct xfs_mount_args *ap, | |
1519 | struct xfs_mount *mp) | |
1520 | { | |
1521 | /* Values are in BBs */ | |
1522 | if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | |
1523 | /* | |
1524 | * At this point the superblock has not been read | |
1525 | * in, therefore we do not know the block size. | |
1526 | * Before the mount call ends we will convert | |
1527 | * these to FSBs. | |
1528 | */ | |
1529 | mp->m_dalign = ap->sunit; | |
1530 | mp->m_swidth = ap->swidth; | |
1531 | } | |
1532 | ||
1533 | if (ap->logbufs != -1 && | |
1534 | ap->logbufs != 0 && | |
1535 | (ap->logbufs < XLOG_MIN_ICLOGS || | |
1536 | ap->logbufs > XLOG_MAX_ICLOGS)) { | |
1537 | cmn_err(CE_WARN, | |
1538 | "XFS: invalid logbufs value: %d [not %d-%d]", | |
1539 | ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); | |
1540 | return XFS_ERROR(EINVAL); | |
1541 | } | |
1542 | mp->m_logbufs = ap->logbufs; | |
1543 | if (ap->logbufsize != -1 && | |
1544 | ap->logbufsize != 0 && | |
1545 | (ap->logbufsize < XLOG_MIN_RECORD_BSIZE || | |
1546 | ap->logbufsize > XLOG_MAX_RECORD_BSIZE || | |
1547 | !is_power_of_2(ap->logbufsize))) { | |
1548 | cmn_err(CE_WARN, | |
1549 | "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | |
1550 | ap->logbufsize); | |
1551 | return XFS_ERROR(EINVAL); | |
1552 | } | |
1553 | mp->m_logbsize = ap->logbufsize; | |
1554 | mp->m_fsname_len = strlen(ap->fsname) + 1; | |
1555 | mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP); | |
1556 | strcpy(mp->m_fsname, ap->fsname); | |
1557 | if (ap->rtname[0]) { | |
1558 | mp->m_rtname = kmem_alloc(strlen(ap->rtname) + 1, KM_SLEEP); | |
1559 | strcpy(mp->m_rtname, ap->rtname); | |
1560 | } | |
1561 | if (ap->logname[0]) { | |
1562 | mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP); | |
1563 | strcpy(mp->m_logname, ap->logname); | |
1564 | } | |
1565 | ||
1566 | if (ap->flags & XFSMNT_WSYNC) | |
1567 | mp->m_flags |= XFS_MOUNT_WSYNC; | |
1568 | #if XFS_BIG_INUMS | |
1569 | if (ap->flags & XFSMNT_INO64) { | |
1570 | mp->m_flags |= XFS_MOUNT_INO64; | |
1571 | mp->m_inoadd = XFS_INO64_OFFSET; | |
1572 | } | |
1573 | #endif | |
1574 | if (ap->flags & XFSMNT_RETERR) | |
1575 | mp->m_flags |= XFS_MOUNT_RETERR; | |
1576 | if (ap->flags & XFSMNT_NOALIGN) | |
1577 | mp->m_flags |= XFS_MOUNT_NOALIGN; | |
1578 | if (ap->flags & XFSMNT_SWALLOC) | |
1579 | mp->m_flags |= XFS_MOUNT_SWALLOC; | |
1580 | if (ap->flags & XFSMNT_OSYNCISOSYNC) | |
1581 | mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC; | |
1582 | if (ap->flags & XFSMNT_32BITINODES) | |
1583 | mp->m_flags |= XFS_MOUNT_32BITINODES; | |
1584 | ||
1585 | if (ap->flags & XFSMNT_IOSIZE) { | |
1586 | if (ap->iosizelog > XFS_MAX_IO_LOG || | |
1587 | ap->iosizelog < XFS_MIN_IO_LOG) { | |
1588 | cmn_err(CE_WARN, | |
1589 | "XFS: invalid log iosize: %d [not %d-%d]", | |
1590 | ap->iosizelog, XFS_MIN_IO_LOG, | |
1591 | XFS_MAX_IO_LOG); | |
1592 | return XFS_ERROR(EINVAL); | |
1593 | } | |
1594 | ||
1595 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | |
1596 | mp->m_readio_log = mp->m_writeio_log = ap->iosizelog; | |
1597 | } | |
1598 | ||
1599 | if (ap->flags & XFSMNT_IKEEP) | |
1600 | mp->m_flags |= XFS_MOUNT_IKEEP; | |
1601 | if (ap->flags & XFSMNT_DIRSYNC) | |
1602 | mp->m_flags |= XFS_MOUNT_DIRSYNC; | |
1603 | if (ap->flags & XFSMNT_ATTR2) | |
1604 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1605 | if (ap->flags & XFSMNT_NOATTR2) | |
1606 | mp->m_flags |= XFS_MOUNT_NOATTR2; | |
1607 | ||
1608 | if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE) | |
1609 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; | |
1610 | ||
1611 | /* | |
1612 | * no recovery flag requires a read-only mount | |
1613 | */ | |
1614 | if (ap->flags & XFSMNT_NORECOVERY) { | |
1615 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { | |
1616 | cmn_err(CE_WARN, | |
1617 | "XFS: tried to mount a FS read-write without recovery!"); | |
1618 | return XFS_ERROR(EINVAL); | |
1619 | } | |
1620 | mp->m_flags |= XFS_MOUNT_NORECOVERY; | |
1621 | } | |
1622 | ||
1623 | if (ap->flags & XFSMNT_NOUUID) | |
1624 | mp->m_flags |= XFS_MOUNT_NOUUID; | |
1625 | if (ap->flags & XFSMNT_BARRIER) | |
1626 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
1627 | else | |
1628 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
1629 | ||
1630 | if (ap->flags2 & XFSMNT2_FILESTREAMS) | |
1631 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; | |
1632 | ||
1633 | if (ap->flags & XFSMNT_DMAPI) | |
1634 | mp->m_flags |= XFS_MOUNT_DMAPI; | |
1635 | return 0; | |
1636 | } | |
1637 | ||
1638 | /* | |
1639 | * This function fills in xfs_mount_t fields based on mount args. | |
1640 | * Note: the superblock _has_ now been read in. | |
1641 | */ | |
1642 | STATIC int | |
1643 | xfs_finish_flags( | |
1644 | struct xfs_mount_args *ap, | |
1645 | struct xfs_mount *mp) | |
1646 | { | |
1647 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | |
1648 | ||
1649 | /* Fail a mount where the logbuf is smaller then the log stripe */ | |
1650 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { | |
1651 | if ((ap->logbufsize <= 0) && | |
1652 | (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) { | |
1653 | mp->m_logbsize = mp->m_sb.sb_logsunit; | |
1654 | } else if (ap->logbufsize > 0 && | |
1655 | ap->logbufsize < mp->m_sb.sb_logsunit) { | |
1656 | cmn_err(CE_WARN, | |
1657 | "XFS: logbuf size must be greater than or equal to log stripe size"); | |
1658 | return XFS_ERROR(EINVAL); | |
1659 | } | |
1660 | } else { | |
1661 | /* Fail a mount if the logbuf is larger than 32K */ | |
1662 | if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) { | |
1663 | cmn_err(CE_WARN, | |
1664 | "XFS: logbuf size for version 1 logs must be 16K or 32K"); | |
1665 | return XFS_ERROR(EINVAL); | |
1666 | } | |
1667 | } | |
1668 | ||
1669 | /* | |
1670 | * mkfs'ed attr2 will turn on attr2 mount unless explicitly | |
1671 | * told by noattr2 to turn it off | |
1672 | */ | |
1673 | if (xfs_sb_version_hasattr2(&mp->m_sb) && | |
1674 | !(ap->flags & XFSMNT_NOATTR2)) | |
1675 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1676 | ||
1677 | /* | |
1678 | * prohibit r/w mounts of read-only filesystems | |
1679 | */ | |
1680 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { | |
1681 | cmn_err(CE_WARN, | |
1682 | "XFS: cannot mount a read-only filesystem as read-write"); | |
1683 | return XFS_ERROR(EROFS); | |
1684 | } | |
1685 | ||
1686 | /* | |
1687 | * check for shared mount. | |
1688 | */ | |
1689 | if (ap->flags & XFSMNT_SHARED) { | |
1690 | if (!xfs_sb_version_hasshared(&mp->m_sb)) | |
1691 | return XFS_ERROR(EINVAL); | |
1692 | ||
1693 | /* | |
1694 | * For IRIX 6.5, shared mounts must have the shared | |
1695 | * version bit set, have the persistent readonly | |
1696 | * field set, must be version 0 and can only be mounted | |
1697 | * read-only. | |
1698 | */ | |
1699 | if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) || | |
1700 | (mp->m_sb.sb_shared_vn != 0)) | |
1701 | return XFS_ERROR(EINVAL); | |
1702 | ||
1703 | mp->m_flags |= XFS_MOUNT_SHARED; | |
1704 | ||
1705 | /* | |
1706 | * Shared XFS V0 can't deal with DMI. Return EINVAL. | |
1707 | */ | |
1708 | if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI)) | |
1709 | return XFS_ERROR(EINVAL); | |
1710 | } | |
1711 | ||
1712 | if (ap->flags & XFSMNT_UQUOTA) { | |
1713 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); | |
1714 | if (ap->flags & XFSMNT_UQUOTAENF) | |
1715 | mp->m_qflags |= XFS_UQUOTA_ENFD; | |
1716 | } | |
1717 | ||
1718 | if (ap->flags & XFSMNT_GQUOTA) { | |
1719 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); | |
1720 | if (ap->flags & XFSMNT_GQUOTAENF) | |
1721 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1722 | } else if (ap->flags & XFSMNT_PQUOTA) { | |
1723 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); | |
1724 | if (ap->flags & XFSMNT_PQUOTAENF) | |
1725 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1726 | } | |
1727 | ||
1728 | return 0; | |
1729 | } | |
1730 | ||
1da177e4 | 1731 | STATIC int |
a50cd269 | 1732 | xfs_fs_fill_super( |
1da177e4 LT |
1733 | struct super_block *sb, |
1734 | void *data, | |
1735 | int silent) | |
1736 | { | |
f3dcc13f | 1737 | struct inode *root; |
745f6919 | 1738 | struct xfs_mount *mp = NULL; |
bdd907ba | 1739 | struct xfs_mount_args *args; |
c962fb79 | 1740 | int flags = 0, error = ENOMEM; |
1da177e4 | 1741 | |
bdd907ba CH |
1742 | args = xfs_args_allocate(sb, silent); |
1743 | if (!args) | |
1744 | return -ENOMEM; | |
1745 | ||
c962fb79 CH |
1746 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
1747 | if (!mp) | |
1748 | goto out_free_args; | |
1da177e4 | 1749 | |
c962fb79 CH |
1750 | spin_lock_init(&mp->m_sb_lock); |
1751 | mutex_init(&mp->m_ilock); | |
1752 | mutex_init(&mp->m_growlock); | |
1753 | atomic_set(&mp->m_active_trans, 0); | |
74394496 CH |
1754 | INIT_LIST_HEAD(&mp->m_sync_list); |
1755 | spin_lock_init(&mp->m_sync_lock); | |
1756 | init_waitqueue_head(&mp->m_wait_single_sync_task); | |
1757 | ||
b267ce99 CH |
1758 | mp->m_super = sb; |
1759 | sb->s_fs_info = mp; | |
1da177e4 | 1760 | |
bd186aa9 CH |
1761 | if (sb->s_flags & MS_RDONLY) |
1762 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1763 | ||
745f6919 CH |
1764 | error = xfs_parseargs(mp, (char *)data, args, 0); |
1765 | if (error) | |
c962fb79 | 1766 | goto out_free_mp; |
1da177e4 LT |
1767 | |
1768 | sb_min_blocksize(sb, BBSIZE); | |
0ec58516 | 1769 | sb->s_xattr = xfs_xattr_handlers; |
a50cd269 | 1770 | sb->s_export_op = &xfs_export_operations; |
a50cd269 NS |
1771 | sb->s_qcop = &xfs_quotactl_operations; |
1772 | sb->s_op = &xfs_super_operations; | |
1da177e4 | 1773 | |
f8f15e42 CH |
1774 | error = xfs_dmops_get(mp, args); |
1775 | if (error) | |
c962fb79 | 1776 | goto out_free_mp; |
f8f15e42 | 1777 | error = xfs_qmops_get(mp, args); |
745f6919 | 1778 | if (error) |
19f354d4 | 1779 | goto out_put_dmops; |
1da177e4 | 1780 | |
f8f15e42 CH |
1781 | if (args->flags & XFSMNT_QUIET) |
1782 | flags |= XFS_MFSI_QUIET; | |
1783 | ||
19f354d4 CH |
1784 | error = xfs_open_devices(mp, args); |
1785 | if (error) | |
1786 | goto out_put_qmops; | |
f8f15e42 | 1787 | |
c962fb79 CH |
1788 | if (xfs_icsb_init_counters(mp)) |
1789 | mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB; | |
1790 | ||
f8f15e42 CH |
1791 | /* |
1792 | * Setup flags based on mount(2) options and then the superblock | |
1793 | */ | |
1794 | error = xfs_start_flags(args, mp); | |
1795 | if (error) | |
95db4e21 | 1796 | goto out_destroy_counters; |
f8f15e42 CH |
1797 | error = xfs_readsb(mp, flags); |
1798 | if (error) | |
95db4e21 | 1799 | goto out_destroy_counters; |
f8f15e42 CH |
1800 | error = xfs_finish_flags(args, mp); |
1801 | if (error) | |
effa2eda | 1802 | goto out_free_sb; |
f8f15e42 | 1803 | |
e34b562c | 1804 | error = xfs_setup_devices(mp); |
19f354d4 | 1805 | if (error) |
effa2eda | 1806 | goto out_free_sb; |
f8f15e42 CH |
1807 | |
1808 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1809 | xfs_mountfs_check_barriers(mp); | |
1810 | ||
1811 | error = xfs_filestream_mount(mp); | |
1812 | if (error) | |
effa2eda | 1813 | goto out_free_sb; |
f8f15e42 CH |
1814 | |
1815 | error = xfs_mountfs(mp, flags); | |
1816 | if (error) | |
120226c1 | 1817 | goto out_filestream_unmount; |
f8f15e42 CH |
1818 | |
1819 | XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname); | |
1820 | ||
1da177e4 | 1821 | sb->s_dirt = 1; |
4ca488eb CH |
1822 | sb->s_magic = XFS_SB_MAGIC; |
1823 | sb->s_blocksize = mp->m_sb.sb_blocksize; | |
1824 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; | |
1da177e4 LT |
1825 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
1826 | sb->s_time_gran = 1; | |
1827 | set_posix_acl_flag(sb); | |
1828 | ||
f3dcc13f CH |
1829 | root = igrab(mp->m_rootip->i_vnode); |
1830 | if (!root) { | |
cbc89dcf | 1831 | error = ENOENT; |
1da177e4 | 1832 | goto fail_unmount; |
cbc89dcf | 1833 | } |
f3dcc13f CH |
1834 | if (is_bad_inode(root)) { |
1835 | error = EINVAL; | |
1da177e4 LT |
1836 | goto fail_vnrele; |
1837 | } | |
f3dcc13f CH |
1838 | sb->s_root = d_alloc_root(root); |
1839 | if (!sb->s_root) { | |
1840 | error = ENOMEM; | |
1da177e4 LT |
1841 | goto fail_vnrele; |
1842 | } | |
74394496 CH |
1843 | |
1844 | mp->m_sync_work.w_syncer = xfs_sync_worker; | |
1845 | mp->m_sync_work.w_mount = mp; | |
1846 | mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd"); | |
1847 | if (IS_ERR(mp->m_sync_task)) { | |
1848 | error = -PTR_ERR(mp->m_sync_task); | |
1da177e4 | 1849 | goto fail_vnrele; |
74394496 CH |
1850 | } |
1851 | ||
cf441eeb | 1852 | xfs_itrace_exit(XFS_I(sb->s_root->d_inode)); |
1da177e4 | 1853 | |
bdd907ba | 1854 | kfree(args); |
1da177e4 LT |
1855 | return 0; |
1856 | ||
120226c1 CH |
1857 | out_filestream_unmount: |
1858 | xfs_filestream_unmount(mp); | |
effa2eda CH |
1859 | out_free_sb: |
1860 | xfs_freesb(mp); | |
c962fb79 CH |
1861 | out_destroy_counters: |
1862 | xfs_icsb_destroy_counters(mp); | |
19f354d4 CH |
1863 | xfs_close_devices(mp); |
1864 | out_put_qmops: | |
f8f15e42 | 1865 | xfs_qmops_put(mp); |
19f354d4 | 1866 | out_put_dmops: |
f8f15e42 | 1867 | xfs_dmops_put(mp); |
c962fb79 CH |
1868 | out_free_mp: |
1869 | kfree(mp); | |
1870 | out_free_args: | |
1871 | kfree(args); | |
1872 | return -error; | |
f8f15e42 CH |
1873 | |
1874 | fail_vnrele: | |
1da177e4 LT |
1875 | if (sb->s_root) { |
1876 | dput(sb->s_root); | |
1877 | sb->s_root = NULL; | |
1878 | } else { | |
f3dcc13f | 1879 | iput(root); |
1da177e4 LT |
1880 | } |
1881 | ||
f8f15e42 | 1882 | fail_unmount: |
e48ad316 CH |
1883 | /* |
1884 | * Blow away any referenced inode in the filestreams cache. | |
1885 | * This can and will cause log traffic as inodes go inactive | |
1886 | * here. | |
1887 | */ | |
1888 | xfs_filestream_unmount(mp); | |
1889 | ||
1890 | XFS_bflush(mp->m_ddev_targp); | |
1891 | error = xfs_unmount_flush(mp, 0); | |
1892 | WARN_ON(error); | |
1893 | ||
1894 | IRELE(mp->m_rootip); | |
1895 | ||
19f354d4 | 1896 | xfs_unmountfs(mp); |
c962fb79 | 1897 | goto out_destroy_counters; |
1da177e4 LT |
1898 | } |
1899 | ||
454e2398 | 1900 | STATIC int |
a50cd269 | 1901 | xfs_fs_get_sb( |
1da177e4 LT |
1902 | struct file_system_type *fs_type, |
1903 | int flags, | |
1904 | const char *dev_name, | |
454e2398 DH |
1905 | void *data, |
1906 | struct vfsmount *mnt) | |
1da177e4 | 1907 | { |
454e2398 DH |
1908 | return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super, |
1909 | mnt); | |
a50cd269 NS |
1910 | } |
1911 | ||
7989cb8e | 1912 | static struct super_operations xfs_super_operations = { |
a50cd269 NS |
1913 | .alloc_inode = xfs_fs_alloc_inode, |
1914 | .destroy_inode = xfs_fs_destroy_inode, | |
1915 | .write_inode = xfs_fs_write_inode, | |
1916 | .clear_inode = xfs_fs_clear_inode, | |
1917 | .put_super = xfs_fs_put_super, | |
1918 | .write_super = xfs_fs_write_super, | |
1919 | .sync_fs = xfs_fs_sync_super, | |
1920 | .write_super_lockfs = xfs_fs_lockfs, | |
1921 | .statfs = xfs_fs_statfs, | |
1922 | .remount_fs = xfs_fs_remount, | |
1923 | .show_options = xfs_fs_show_options, | |
1da177e4 LT |
1924 | }; |
1925 | ||
7989cb8e | 1926 | static struct quotactl_ops xfs_quotactl_operations = { |
a50cd269 NS |
1927 | .quota_sync = xfs_fs_quotasync, |
1928 | .get_xstate = xfs_fs_getxstate, | |
1929 | .set_xstate = xfs_fs_setxstate, | |
1930 | .get_xquota = xfs_fs_getxquota, | |
1931 | .set_xquota = xfs_fs_setxquota, | |
1da177e4 LT |
1932 | }; |
1933 | ||
5085b607 | 1934 | static struct file_system_type xfs_fs_type = { |
1da177e4 LT |
1935 | .owner = THIS_MODULE, |
1936 | .name = "xfs", | |
a50cd269 | 1937 | .get_sb = xfs_fs_get_sb, |
1da177e4 LT |
1938 | .kill_sb = kill_block_super, |
1939 | .fs_flags = FS_REQUIRES_DEV, | |
1940 | }; | |
1941 | ||
1942 | ||
1943 | STATIC int __init | |
1944 | init_xfs_fs( void ) | |
1945 | { | |
1946 | int error; | |
1da177e4 LT |
1947 | static char message[] __initdata = KERN_INFO \ |
1948 | XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n"; | |
1949 | ||
1950 | printk(message); | |
1951 | ||
1da177e4 LT |
1952 | ktrace_init(64); |
1953 | ||
8758280f | 1954 | error = xfs_init_zones(); |
1da177e4 | 1955 | if (error < 0) |
0829c360 | 1956 | goto undo_zones; |
1da177e4 | 1957 | |
ce8e922c | 1958 | error = xfs_buf_init(); |
1da177e4 | 1959 | if (error < 0) |
ce8e922c | 1960 | goto undo_buffers; |
1da177e4 LT |
1961 | |
1962 | vn_init(); | |
1963 | xfs_init(); | |
1964 | uuid_init(); | |
1965 | vfs_initquota(); | |
1966 | ||
1967 | error = register_filesystem(&xfs_fs_type); | |
1968 | if (error) | |
1969 | goto undo_register; | |
1da177e4 LT |
1970 | return 0; |
1971 | ||
1972 | undo_register: | |
ce8e922c | 1973 | xfs_buf_terminate(); |
1da177e4 | 1974 | |
ce8e922c | 1975 | undo_buffers: |
8758280f | 1976 | xfs_destroy_zones(); |
1da177e4 | 1977 | |
0829c360 | 1978 | undo_zones: |
1da177e4 LT |
1979 | return error; |
1980 | } | |
1981 | ||
1982 | STATIC void __exit | |
1983 | exit_xfs_fs( void ) | |
1984 | { | |
1985 | vfs_exitquota(); | |
1da177e4 LT |
1986 | unregister_filesystem(&xfs_fs_type); |
1987 | xfs_cleanup(); | |
ce8e922c | 1988 | xfs_buf_terminate(); |
8758280f | 1989 | xfs_destroy_zones(); |
1da177e4 LT |
1990 | ktrace_uninit(); |
1991 | } | |
1992 | ||
1993 | module_init(init_xfs_fs); | |
1994 | module_exit(exit_xfs_fs); | |
1995 | ||
1996 | MODULE_AUTHOR("Silicon Graphics, Inc."); | |
1997 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); | |
1998 | MODULE_LICENSE("GPL"); |