Commit | Line | Data |
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1da177e4 | 1 | /* |
a805bad5 | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
7b718769 | 3 | * All Rights Reserved. |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a844f451 | 19 | #include "xfs_bit.h" |
1da177e4 LT |
20 | #include "xfs_log.h" |
21 | #include "xfs_clnt.h" | |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
a844f451 | 25 | #include "xfs_ag.h" |
1da177e4 LT |
26 | #include "xfs_dir2.h" |
27 | #include "xfs_alloc.h" | |
28 | #include "xfs_dmapi.h" | |
29 | #include "xfs_quota.h" | |
30 | #include "xfs_mount.h" | |
1da177e4 | 31 | #include "xfs_bmap_btree.h" |
a844f451 | 32 | #include "xfs_alloc_btree.h" |
1da177e4 | 33 | #include "xfs_ialloc_btree.h" |
1da177e4 | 34 | #include "xfs_dir2_sf.h" |
a844f451 | 35 | #include "xfs_attr_sf.h" |
1da177e4 LT |
36 | #include "xfs_dinode.h" |
37 | #include "xfs_inode.h" | |
a844f451 | 38 | #include "xfs_btree.h" |
8c4ed633 | 39 | #include "xfs_btree_trace.h" |
a844f451 | 40 | #include "xfs_ialloc.h" |
1da177e4 | 41 | #include "xfs_bmap.h" |
1da177e4 LT |
42 | #include "xfs_rtalloc.h" |
43 | #include "xfs_error.h" | |
44 | #include "xfs_itable.h" | |
9909c4aa | 45 | #include "xfs_fsops.h" |
1da177e4 LT |
46 | #include "xfs_rw.h" |
47 | #include "xfs_acl.h" | |
1da177e4 LT |
48 | #include "xfs_attr.h" |
49 | #include "xfs_buf_item.h" | |
50 | #include "xfs_utils.h" | |
739bfb2a | 51 | #include "xfs_vnodeops.h" |
745f6919 | 52 | #include "xfs_vfsops.h" |
1da177e4 | 53 | #include "xfs_version.h" |
a67d7c5f | 54 | #include "xfs_log_priv.h" |
249a8c11 | 55 | #include "xfs_trans_priv.h" |
48b62a1a | 56 | #include "xfs_filestream.h" |
9f8868ff CH |
57 | #include "xfs_da_btree.h" |
58 | #include "xfs_dir2_trace.h" | |
59 | #include "xfs_extfree_item.h" | |
60 | #include "xfs_mru_cache.h" | |
61 | #include "xfs_inode_item.h" | |
fe4fa4b8 | 62 | #include "xfs_sync.h" |
1da177e4 LT |
63 | |
64 | #include <linux/namei.h> | |
65 | #include <linux/init.h> | |
66 | #include <linux/mount.h> | |
0829c360 | 67 | #include <linux/mempool.h> |
1da177e4 | 68 | #include <linux/writeback.h> |
4df08c52 | 69 | #include <linux/kthread.h> |
7dfb7103 | 70 | #include <linux/freezer.h> |
62a877e3 | 71 | #include <linux/parser.h> |
1da177e4 | 72 | |
7989cb8e DC |
73 | static struct quotactl_ops xfs_quotactl_operations; |
74 | static struct super_operations xfs_super_operations; | |
75 | static kmem_zone_t *xfs_vnode_zone; | |
76 | static kmem_zone_t *xfs_ioend_zone; | |
0829c360 | 77 | mempool_t *xfs_ioend_pool; |
1da177e4 LT |
78 | |
79 | STATIC struct xfs_mount_args * | |
80 | xfs_args_allocate( | |
764d1f89 NS |
81 | struct super_block *sb, |
82 | int silent) | |
1da177e4 LT |
83 | { |
84 | struct xfs_mount_args *args; | |
85 | ||
bdd907ba CH |
86 | args = kzalloc(sizeof(struct xfs_mount_args), GFP_KERNEL); |
87 | if (!args) | |
88 | return NULL; | |
89 | ||
1da177e4 LT |
90 | args->logbufs = args->logbufsize = -1; |
91 | strncpy(args->fsname, sb->s_id, MAXNAMELEN); | |
92 | ||
93 | /* Copy the already-parsed mount(2) flags we're interested in */ | |
1da177e4 LT |
94 | if (sb->s_flags & MS_DIRSYNC) |
95 | args->flags |= XFSMNT_DIRSYNC; | |
96 | if (sb->s_flags & MS_SYNCHRONOUS) | |
97 | args->flags |= XFSMNT_WSYNC; | |
764d1f89 NS |
98 | if (silent) |
99 | args->flags |= XFSMNT_QUIET; | |
1da177e4 LT |
100 | args->flags |= XFSMNT_32BITINODES; |
101 | ||
102 | return args; | |
103 | } | |
104 | ||
a67d7c5f DC |
105 | #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ |
106 | #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ | |
107 | #define MNTOPT_LOGDEV "logdev" /* log device */ | |
108 | #define MNTOPT_RTDEV "rtdev" /* realtime I/O device */ | |
109 | #define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */ | |
110 | #define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */ | |
111 | #define MNTOPT_INO64 "ino64" /* force inodes into 64-bit range */ | |
112 | #define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */ | |
113 | #define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */ | |
114 | #define MNTOPT_SUNIT "sunit" /* data volume stripe unit */ | |
115 | #define MNTOPT_SWIDTH "swidth" /* data volume stripe width */ | |
116 | #define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */ | |
117 | #define MNTOPT_MTPT "mtpt" /* filesystem mount point */ | |
118 | #define MNTOPT_GRPID "grpid" /* group-ID from parent directory */ | |
119 | #define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */ | |
120 | #define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */ | |
121 | #define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */ | |
122 | #define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */ | |
123 | #define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */ | |
124 | #define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and | |
125 | * unwritten extent conversion */ | |
126 | #define MNTOPT_NOBARRIER "nobarrier" /* .. disable */ | |
127 | #define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */ | |
128 | #define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */ | |
129 | #define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */ | |
130 | #define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */ | |
131 | #define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */ | |
132 | #define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes | |
133 | * in stat(). */ | |
134 | #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ | |
135 | #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ | |
136 | #define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */ | |
137 | #define MNTOPT_QUOTA "quota" /* disk quotas (user) */ | |
138 | #define MNTOPT_NOQUOTA "noquota" /* no quotas */ | |
139 | #define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */ | |
140 | #define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */ | |
141 | #define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */ | |
142 | #define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */ | |
143 | #define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */ | |
144 | #define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */ | |
145 | #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */ | |
146 | #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */ | |
147 | #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */ | |
148 | #define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */ | |
149 | #define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */ | |
150 | #define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */ | |
151 | #define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */ | |
152 | ||
62a877e3 CH |
153 | /* |
154 | * Table driven mount option parser. | |
155 | * | |
156 | * Currently only used for remount, but it will be used for mount | |
157 | * in the future, too. | |
158 | */ | |
159 | enum { | |
160 | Opt_barrier, Opt_nobarrier, Opt_err | |
161 | }; | |
162 | ||
a447c093 | 163 | static const match_table_t tokens = { |
62a877e3 CH |
164 | {Opt_barrier, "barrier"}, |
165 | {Opt_nobarrier, "nobarrier"}, | |
166 | {Opt_err, NULL} | |
167 | }; | |
168 | ||
169 | ||
a67d7c5f DC |
170 | STATIC unsigned long |
171 | suffix_strtoul(char *s, char **endp, unsigned int base) | |
172 | { | |
173 | int last, shift_left_factor = 0; | |
174 | char *value = s; | |
175 | ||
176 | last = strlen(value) - 1; | |
177 | if (value[last] == 'K' || value[last] == 'k') { | |
178 | shift_left_factor = 10; | |
179 | value[last] = '\0'; | |
180 | } | |
181 | if (value[last] == 'M' || value[last] == 'm') { | |
182 | shift_left_factor = 20; | |
183 | value[last] = '\0'; | |
184 | } | |
185 | if (value[last] == 'G' || value[last] == 'g') { | |
186 | shift_left_factor = 30; | |
187 | value[last] = '\0'; | |
188 | } | |
189 | ||
190 | return simple_strtoul((const char *)s, endp, base) << shift_left_factor; | |
191 | } | |
192 | ||
193 | STATIC int | |
194 | xfs_parseargs( | |
195 | struct xfs_mount *mp, | |
196 | char *options, | |
197 | struct xfs_mount_args *args, | |
198 | int update) | |
199 | { | |
200 | char *this_char, *value, *eov; | |
201 | int dsunit, dswidth, vol_dsunit, vol_dswidth; | |
202 | int iosize; | |
1bd960ee | 203 | int dmapi_implies_ikeep = 1; |
a67d7c5f DC |
204 | |
205 | args->flags |= XFSMNT_BARRIER; | |
206 | args->flags2 |= XFSMNT2_COMPAT_IOSIZE; | |
207 | ||
208 | if (!options) | |
209 | goto done; | |
210 | ||
211 | iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0; | |
212 | ||
213 | while ((this_char = strsep(&options, ",")) != NULL) { | |
214 | if (!*this_char) | |
215 | continue; | |
216 | if ((value = strchr(this_char, '=')) != NULL) | |
217 | *value++ = 0; | |
218 | ||
219 | if (!strcmp(this_char, MNTOPT_LOGBUFS)) { | |
220 | if (!value || !*value) { | |
221 | cmn_err(CE_WARN, | |
222 | "XFS: %s option requires an argument", | |
223 | this_char); | |
224 | return EINVAL; | |
225 | } | |
226 | args->logbufs = simple_strtoul(value, &eov, 10); | |
227 | } else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) { | |
228 | if (!value || !*value) { | |
229 | cmn_err(CE_WARN, | |
230 | "XFS: %s option requires an argument", | |
231 | this_char); | |
232 | return EINVAL; | |
233 | } | |
234 | args->logbufsize = suffix_strtoul(value, &eov, 10); | |
235 | } else if (!strcmp(this_char, MNTOPT_LOGDEV)) { | |
236 | if (!value || !*value) { | |
237 | cmn_err(CE_WARN, | |
238 | "XFS: %s option requires an argument", | |
239 | this_char); | |
240 | return EINVAL; | |
241 | } | |
242 | strncpy(args->logname, value, MAXNAMELEN); | |
243 | } else if (!strcmp(this_char, MNTOPT_MTPT)) { | |
244 | if (!value || !*value) { | |
245 | cmn_err(CE_WARN, | |
246 | "XFS: %s option requires an argument", | |
247 | this_char); | |
248 | return EINVAL; | |
249 | } | |
250 | strncpy(args->mtpt, value, MAXNAMELEN); | |
251 | } else if (!strcmp(this_char, MNTOPT_RTDEV)) { | |
252 | if (!value || !*value) { | |
253 | cmn_err(CE_WARN, | |
254 | "XFS: %s option requires an argument", | |
255 | this_char); | |
256 | return EINVAL; | |
257 | } | |
258 | strncpy(args->rtname, value, MAXNAMELEN); | |
259 | } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) { | |
260 | if (!value || !*value) { | |
261 | cmn_err(CE_WARN, | |
262 | "XFS: %s option requires an argument", | |
263 | this_char); | |
264 | return EINVAL; | |
265 | } | |
266 | iosize = simple_strtoul(value, &eov, 10); | |
267 | args->flags |= XFSMNT_IOSIZE; | |
268 | args->iosizelog = (uint8_t) iosize; | |
269 | } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) { | |
270 | if (!value || !*value) { | |
271 | cmn_err(CE_WARN, | |
272 | "XFS: %s option requires an argument", | |
273 | this_char); | |
274 | return EINVAL; | |
275 | } | |
276 | iosize = suffix_strtoul(value, &eov, 10); | |
277 | args->flags |= XFSMNT_IOSIZE; | |
278 | args->iosizelog = ffs(iosize) - 1; | |
279 | } else if (!strcmp(this_char, MNTOPT_GRPID) || | |
280 | !strcmp(this_char, MNTOPT_BSDGROUPS)) { | |
281 | mp->m_flags |= XFS_MOUNT_GRPID; | |
282 | } else if (!strcmp(this_char, MNTOPT_NOGRPID) || | |
283 | !strcmp(this_char, MNTOPT_SYSVGROUPS)) { | |
284 | mp->m_flags &= ~XFS_MOUNT_GRPID; | |
285 | } else if (!strcmp(this_char, MNTOPT_WSYNC)) { | |
286 | args->flags |= XFSMNT_WSYNC; | |
287 | } else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) { | |
288 | args->flags |= XFSMNT_OSYNCISOSYNC; | |
289 | } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) { | |
290 | args->flags |= XFSMNT_NORECOVERY; | |
291 | } else if (!strcmp(this_char, MNTOPT_INO64)) { | |
292 | args->flags |= XFSMNT_INO64; | |
293 | #if !XFS_BIG_INUMS | |
294 | cmn_err(CE_WARN, | |
295 | "XFS: %s option not allowed on this system", | |
296 | this_char); | |
297 | return EINVAL; | |
298 | #endif | |
299 | } else if (!strcmp(this_char, MNTOPT_NOALIGN)) { | |
300 | args->flags |= XFSMNT_NOALIGN; | |
301 | } else if (!strcmp(this_char, MNTOPT_SWALLOC)) { | |
302 | args->flags |= XFSMNT_SWALLOC; | |
303 | } else if (!strcmp(this_char, MNTOPT_SUNIT)) { | |
304 | if (!value || !*value) { | |
305 | cmn_err(CE_WARN, | |
306 | "XFS: %s option requires an argument", | |
307 | this_char); | |
308 | return EINVAL; | |
309 | } | |
310 | dsunit = simple_strtoul(value, &eov, 10); | |
311 | } else if (!strcmp(this_char, MNTOPT_SWIDTH)) { | |
312 | if (!value || !*value) { | |
313 | cmn_err(CE_WARN, | |
314 | "XFS: %s option requires an argument", | |
315 | this_char); | |
316 | return EINVAL; | |
317 | } | |
318 | dswidth = simple_strtoul(value, &eov, 10); | |
319 | } else if (!strcmp(this_char, MNTOPT_64BITINODE)) { | |
320 | args->flags &= ~XFSMNT_32BITINODES; | |
321 | #if !XFS_BIG_INUMS | |
322 | cmn_err(CE_WARN, | |
323 | "XFS: %s option not allowed on this system", | |
324 | this_char); | |
325 | return EINVAL; | |
326 | #endif | |
327 | } else if (!strcmp(this_char, MNTOPT_NOUUID)) { | |
328 | args->flags |= XFSMNT_NOUUID; | |
329 | } else if (!strcmp(this_char, MNTOPT_BARRIER)) { | |
330 | args->flags |= XFSMNT_BARRIER; | |
331 | } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { | |
332 | args->flags &= ~XFSMNT_BARRIER; | |
333 | } else if (!strcmp(this_char, MNTOPT_IKEEP)) { | |
1bd960ee | 334 | args->flags |= XFSMNT_IKEEP; |
a67d7c5f | 335 | } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { |
1bd960ee JJS |
336 | dmapi_implies_ikeep = 0; |
337 | args->flags &= ~XFSMNT_IKEEP; | |
a67d7c5f DC |
338 | } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { |
339 | args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE; | |
340 | } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { | |
341 | args->flags2 |= XFSMNT2_COMPAT_IOSIZE; | |
342 | } else if (!strcmp(this_char, MNTOPT_ATTR2)) { | |
343 | args->flags |= XFSMNT_ATTR2; | |
344 | } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { | |
345 | args->flags &= ~XFSMNT_ATTR2; | |
7c12f296 | 346 | args->flags |= XFSMNT_NOATTR2; |
a67d7c5f DC |
347 | } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) { |
348 | args->flags2 |= XFSMNT2_FILESTREAMS; | |
349 | } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) { | |
350 | args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA); | |
351 | args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA); | |
352 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || | |
353 | !strcmp(this_char, MNTOPT_UQUOTA) || | |
354 | !strcmp(this_char, MNTOPT_USRQUOTA)) { | |
355 | args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF; | |
356 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || | |
357 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { | |
358 | args->flags |= XFSMNT_UQUOTA; | |
359 | args->flags &= ~XFSMNT_UQUOTAENF; | |
360 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || | |
361 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { | |
362 | args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF; | |
363 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { | |
364 | args->flags |= XFSMNT_PQUOTA; | |
365 | args->flags &= ~XFSMNT_PQUOTAENF; | |
366 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || | |
367 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { | |
368 | args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF; | |
369 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { | |
370 | args->flags |= XFSMNT_GQUOTA; | |
371 | args->flags &= ~XFSMNT_GQUOTAENF; | |
372 | } else if (!strcmp(this_char, MNTOPT_DMAPI)) { | |
373 | args->flags |= XFSMNT_DMAPI; | |
374 | } else if (!strcmp(this_char, MNTOPT_XDSM)) { | |
375 | args->flags |= XFSMNT_DMAPI; | |
376 | } else if (!strcmp(this_char, MNTOPT_DMI)) { | |
377 | args->flags |= XFSMNT_DMAPI; | |
378 | } else if (!strcmp(this_char, "ihashsize")) { | |
379 | cmn_err(CE_WARN, | |
380 | "XFS: ihashsize no longer used, option is deprecated."); | |
381 | } else if (!strcmp(this_char, "osyncisdsync")) { | |
382 | /* no-op, this is now the default */ | |
383 | cmn_err(CE_WARN, | |
384 | "XFS: osyncisdsync is now the default, option is deprecated."); | |
385 | } else if (!strcmp(this_char, "irixsgid")) { | |
386 | cmn_err(CE_WARN, | |
387 | "XFS: irixsgid is now a sysctl(2) variable, option is deprecated."); | |
388 | } else { | |
389 | cmn_err(CE_WARN, | |
390 | "XFS: unknown mount option [%s].", this_char); | |
391 | return EINVAL; | |
392 | } | |
393 | } | |
394 | ||
395 | if (args->flags & XFSMNT_NORECOVERY) { | |
396 | if ((mp->m_flags & XFS_MOUNT_RDONLY) == 0) { | |
397 | cmn_err(CE_WARN, | |
398 | "XFS: no-recovery mounts must be read-only."); | |
399 | return EINVAL; | |
400 | } | |
401 | } | |
402 | ||
403 | if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) { | |
404 | cmn_err(CE_WARN, | |
405 | "XFS: sunit and swidth options incompatible with the noalign option"); | |
406 | return EINVAL; | |
407 | } | |
408 | ||
409 | if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) { | |
410 | cmn_err(CE_WARN, | |
411 | "XFS: cannot mount with both project and group quota"); | |
412 | return EINVAL; | |
413 | } | |
414 | ||
415 | if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') { | |
416 | printk("XFS: %s option needs the mount point option as well\n", | |
417 | MNTOPT_DMAPI); | |
418 | return EINVAL; | |
419 | } | |
420 | ||
421 | if ((dsunit && !dswidth) || (!dsunit && dswidth)) { | |
422 | cmn_err(CE_WARN, | |
423 | "XFS: sunit and swidth must be specified together"); | |
424 | return EINVAL; | |
425 | } | |
426 | ||
427 | if (dsunit && (dswidth % dsunit != 0)) { | |
428 | cmn_err(CE_WARN, | |
429 | "XFS: stripe width (%d) must be a multiple of the stripe unit (%d)", | |
430 | dswidth, dsunit); | |
431 | return EINVAL; | |
432 | } | |
433 | ||
434 | /* | |
435 | * Applications using DMI filesystems often expect the | |
436 | * inode generation number to be monotonically increasing. | |
437 | * If we delete inode chunks we break this assumption, so | |
438 | * keep unused inode chunks on disk for DMI filesystems | |
439 | * until we come up with a better solution. | |
440 | * Note that if "ikeep" or "noikeep" mount options are | |
441 | * supplied, then they are honored. | |
442 | */ | |
1bd960ee JJS |
443 | if ((args->flags & XFSMNT_DMAPI) && dmapi_implies_ikeep) |
444 | args->flags |= XFSMNT_IKEEP; | |
a67d7c5f DC |
445 | |
446 | if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | |
447 | if (dsunit) { | |
448 | args->sunit = dsunit; | |
449 | args->flags |= XFSMNT_RETERR; | |
450 | } else { | |
451 | args->sunit = vol_dsunit; | |
452 | } | |
453 | dswidth ? (args->swidth = dswidth) : | |
454 | (args->swidth = vol_dswidth); | |
455 | } else { | |
456 | args->sunit = args->swidth = 0; | |
457 | } | |
458 | ||
459 | done: | |
460 | if (args->flags & XFSMNT_32BITINODES) | |
461 | mp->m_flags |= XFS_MOUNT_SMALL_INUMS; | |
462 | if (args->flags2) | |
463 | args->flags |= XFSMNT_FLAGS2; | |
464 | return 0; | |
465 | } | |
466 | ||
467 | struct proc_xfs_info { | |
468 | int flag; | |
469 | char *str; | |
470 | }; | |
471 | ||
472 | STATIC int | |
473 | xfs_showargs( | |
474 | struct xfs_mount *mp, | |
475 | struct seq_file *m) | |
476 | { | |
477 | static struct proc_xfs_info xfs_info_set[] = { | |
478 | /* the few simple ones we can get from the mount struct */ | |
1bd960ee | 479 | { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, |
a67d7c5f DC |
480 | { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, |
481 | { XFS_MOUNT_INO64, "," MNTOPT_INO64 }, | |
482 | { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, | |
483 | { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC }, | |
484 | { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, | |
485 | { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, | |
486 | { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC }, | |
487 | { XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 }, | |
488 | { XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM }, | |
489 | { XFS_MOUNT_DMAPI, "," MNTOPT_DMAPI }, | |
490 | { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, | |
491 | { 0, NULL } | |
492 | }; | |
493 | static struct proc_xfs_info xfs_info_unset[] = { | |
494 | /* the few simple ones we can get from the mount struct */ | |
a67d7c5f DC |
495 | { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, |
496 | { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, | |
497 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, | |
498 | { 0, NULL } | |
499 | }; | |
500 | struct proc_xfs_info *xfs_infop; | |
501 | ||
502 | for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) { | |
503 | if (mp->m_flags & xfs_infop->flag) | |
504 | seq_puts(m, xfs_infop->str); | |
505 | } | |
506 | for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) { | |
507 | if (!(mp->m_flags & xfs_infop->flag)) | |
508 | seq_puts(m, xfs_infop->str); | |
509 | } | |
510 | ||
511 | if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) | |
512 | seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk", | |
513 | (int)(1 << mp->m_writeio_log) >> 10); | |
514 | ||
515 | if (mp->m_logbufs > 0) | |
516 | seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs); | |
517 | if (mp->m_logbsize > 0) | |
518 | seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10); | |
519 | ||
520 | if (mp->m_logname) | |
521 | seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname); | |
522 | if (mp->m_rtname) | |
523 | seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname); | |
524 | ||
525 | if (mp->m_dalign > 0) | |
526 | seq_printf(m, "," MNTOPT_SUNIT "=%d", | |
527 | (int)XFS_FSB_TO_BB(mp, mp->m_dalign)); | |
528 | if (mp->m_swidth > 0) | |
529 | seq_printf(m, "," MNTOPT_SWIDTH "=%d", | |
530 | (int)XFS_FSB_TO_BB(mp, mp->m_swidth)); | |
531 | ||
532 | if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD)) | |
533 | seq_puts(m, "," MNTOPT_USRQUOTA); | |
534 | else if (mp->m_qflags & XFS_UQUOTA_ACCT) | |
535 | seq_puts(m, "," MNTOPT_UQUOTANOENF); | |
536 | ||
537 | if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
538 | seq_puts(m, "," MNTOPT_PRJQUOTA); | |
539 | else if (mp->m_qflags & XFS_PQUOTA_ACCT) | |
540 | seq_puts(m, "," MNTOPT_PQUOTANOENF); | |
541 | ||
542 | if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
543 | seq_puts(m, "," MNTOPT_GRPQUOTA); | |
544 | else if (mp->m_qflags & XFS_GQUOTA_ACCT) | |
545 | seq_puts(m, "," MNTOPT_GQUOTANOENF); | |
546 | ||
547 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) | |
548 | seq_puts(m, "," MNTOPT_NOQUOTA); | |
549 | ||
550 | return 0; | |
551 | } | |
1da177e4 LT |
552 | __uint64_t |
553 | xfs_max_file_offset( | |
554 | unsigned int blockshift) | |
555 | { | |
556 | unsigned int pagefactor = 1; | |
557 | unsigned int bitshift = BITS_PER_LONG - 1; | |
558 | ||
559 | /* Figure out maximum filesize, on Linux this can depend on | |
560 | * the filesystem blocksize (on 32 bit platforms). | |
561 | * __block_prepare_write does this in an [unsigned] long... | |
562 | * page->index << (PAGE_CACHE_SHIFT - bbits) | |
563 | * So, for page sized blocks (4K on 32 bit platforms), | |
564 | * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is | |
565 | * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) | |
566 | * but for smaller blocksizes it is less (bbits = log2 bsize). | |
567 | * Note1: get_block_t takes a long (implicit cast from above) | |
568 | * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch | |
569 | * can optionally convert the [unsigned] long from above into | |
570 | * an [unsigned] long long. | |
571 | */ | |
572 | ||
573 | #if BITS_PER_LONG == 32 | |
574 | # if defined(CONFIG_LBD) | |
575 | ASSERT(sizeof(sector_t) == 8); | |
576 | pagefactor = PAGE_CACHE_SIZE; | |
577 | bitshift = BITS_PER_LONG; | |
578 | # else | |
579 | pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift); | |
580 | # endif | |
581 | #endif | |
582 | ||
583 | return (((__uint64_t)pagefactor) << bitshift) - 1; | |
584 | } | |
585 | ||
1da177e4 LT |
586 | int |
587 | xfs_blkdev_get( | |
588 | xfs_mount_t *mp, | |
589 | const char *name, | |
590 | struct block_device **bdevp) | |
591 | { | |
592 | int error = 0; | |
593 | ||
30c40d2c | 594 | *bdevp = open_bdev_exclusive(name, FMODE_READ|FMODE_WRITE, mp); |
1da177e4 LT |
595 | if (IS_ERR(*bdevp)) { |
596 | error = PTR_ERR(*bdevp); | |
597 | printk("XFS: Invalid device [%s], error=%d\n", name, error); | |
598 | } | |
599 | ||
600 | return -error; | |
601 | } | |
602 | ||
603 | void | |
604 | xfs_blkdev_put( | |
605 | struct block_device *bdev) | |
606 | { | |
607 | if (bdev) | |
30c40d2c | 608 | close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE); |
1da177e4 LT |
609 | } |
610 | ||
f538d4da CH |
611 | /* |
612 | * Try to write out the superblock using barriers. | |
613 | */ | |
614 | STATIC int | |
615 | xfs_barrier_test( | |
616 | xfs_mount_t *mp) | |
617 | { | |
618 | xfs_buf_t *sbp = xfs_getsb(mp, 0); | |
619 | int error; | |
620 | ||
621 | XFS_BUF_UNDONE(sbp); | |
622 | XFS_BUF_UNREAD(sbp); | |
623 | XFS_BUF_UNDELAYWRITE(sbp); | |
624 | XFS_BUF_WRITE(sbp); | |
625 | XFS_BUF_UNASYNC(sbp); | |
626 | XFS_BUF_ORDERED(sbp); | |
627 | ||
628 | xfsbdstrat(mp, sbp); | |
629 | error = xfs_iowait(sbp); | |
630 | ||
631 | /* | |
632 | * Clear all the flags we set and possible error state in the | |
633 | * buffer. We only did the write to try out whether barriers | |
634 | * worked and shouldn't leave any traces in the superblock | |
635 | * buffer. | |
636 | */ | |
637 | XFS_BUF_DONE(sbp); | |
638 | XFS_BUF_ERROR(sbp, 0); | |
639 | XFS_BUF_UNORDERED(sbp); | |
640 | ||
641 | xfs_buf_relse(sbp); | |
642 | return error; | |
643 | } | |
644 | ||
645 | void | |
646 | xfs_mountfs_check_barriers(xfs_mount_t *mp) | |
647 | { | |
648 | int error; | |
649 | ||
650 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
651 | xfs_fs_cmn_err(CE_NOTE, mp, | |
652 | "Disabling barriers, not supported with external log device"); | |
653 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 654 | return; |
f538d4da CH |
655 | } |
656 | ||
b2ea401b NS |
657 | if (xfs_readonly_buftarg(mp->m_ddev_targp)) { |
658 | xfs_fs_cmn_err(CE_NOTE, mp, | |
659 | "Disabling barriers, underlying device is readonly"); | |
660 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
661 | return; | |
662 | } | |
663 | ||
f538d4da CH |
664 | error = xfs_barrier_test(mp); |
665 | if (error) { | |
666 | xfs_fs_cmn_err(CE_NOTE, mp, | |
667 | "Disabling barriers, trial barrier write failed"); | |
668 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 669 | return; |
f538d4da CH |
670 | } |
671 | } | |
672 | ||
673 | void | |
674 | xfs_blkdev_issue_flush( | |
675 | xfs_buftarg_t *buftarg) | |
676 | { | |
ce8e922c | 677 | blkdev_issue_flush(buftarg->bt_bdev, NULL); |
f538d4da | 678 | } |
1da177e4 | 679 | |
19f354d4 CH |
680 | STATIC void |
681 | xfs_close_devices( | |
682 | struct xfs_mount *mp) | |
683 | { | |
684 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
c032bfcf | 685 | struct block_device *logdev = mp->m_logdev_targp->bt_bdev; |
19f354d4 | 686 | xfs_free_buftarg(mp->m_logdev_targp); |
c032bfcf | 687 | xfs_blkdev_put(logdev); |
19f354d4 CH |
688 | } |
689 | if (mp->m_rtdev_targp) { | |
c032bfcf | 690 | struct block_device *rtdev = mp->m_rtdev_targp->bt_bdev; |
19f354d4 | 691 | xfs_free_buftarg(mp->m_rtdev_targp); |
c032bfcf | 692 | xfs_blkdev_put(rtdev); |
19f354d4 CH |
693 | } |
694 | xfs_free_buftarg(mp->m_ddev_targp); | |
695 | } | |
696 | ||
697 | /* | |
698 | * The file system configurations are: | |
699 | * (1) device (partition) with data and internal log | |
700 | * (2) logical volume with data and log subvolumes. | |
701 | * (3) logical volume with data, log, and realtime subvolumes. | |
702 | * | |
703 | * We only have to handle opening the log and realtime volumes here if | |
704 | * they are present. The data subvolume has already been opened by | |
705 | * get_sb_bdev() and is stored in sb->s_bdev. | |
706 | */ | |
707 | STATIC int | |
708 | xfs_open_devices( | |
709 | struct xfs_mount *mp, | |
710 | struct xfs_mount_args *args) | |
711 | { | |
712 | struct block_device *ddev = mp->m_super->s_bdev; | |
713 | struct block_device *logdev = NULL, *rtdev = NULL; | |
714 | int error; | |
715 | ||
716 | /* | |
717 | * Open real time and log devices - order is important. | |
718 | */ | |
719 | if (args->logname[0]) { | |
720 | error = xfs_blkdev_get(mp, args->logname, &logdev); | |
721 | if (error) | |
722 | goto out; | |
723 | } | |
724 | ||
725 | if (args->rtname[0]) { | |
726 | error = xfs_blkdev_get(mp, args->rtname, &rtdev); | |
727 | if (error) | |
728 | goto out_close_logdev; | |
729 | ||
730 | if (rtdev == ddev || rtdev == logdev) { | |
731 | cmn_err(CE_WARN, | |
732 | "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev."); | |
733 | error = EINVAL; | |
734 | goto out_close_rtdev; | |
735 | } | |
736 | } | |
737 | ||
738 | /* | |
739 | * Setup xfs_mount buffer target pointers | |
740 | */ | |
741 | error = ENOMEM; | |
742 | mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0); | |
743 | if (!mp->m_ddev_targp) | |
744 | goto out_close_rtdev; | |
745 | ||
746 | if (rtdev) { | |
747 | mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1); | |
748 | if (!mp->m_rtdev_targp) | |
749 | goto out_free_ddev_targ; | |
750 | } | |
751 | ||
752 | if (logdev && logdev != ddev) { | |
753 | mp->m_logdev_targp = xfs_alloc_buftarg(logdev, 1); | |
754 | if (!mp->m_logdev_targp) | |
755 | goto out_free_rtdev_targ; | |
756 | } else { | |
757 | mp->m_logdev_targp = mp->m_ddev_targp; | |
758 | } | |
759 | ||
760 | return 0; | |
761 | ||
762 | out_free_rtdev_targ: | |
763 | if (mp->m_rtdev_targp) | |
764 | xfs_free_buftarg(mp->m_rtdev_targp); | |
765 | out_free_ddev_targ: | |
766 | xfs_free_buftarg(mp->m_ddev_targp); | |
767 | out_close_rtdev: | |
768 | if (rtdev) | |
769 | xfs_blkdev_put(rtdev); | |
770 | out_close_logdev: | |
771 | if (logdev && logdev != ddev) | |
772 | xfs_blkdev_put(logdev); | |
773 | out: | |
774 | return error; | |
775 | } | |
776 | ||
e34b562c CH |
777 | /* |
778 | * Setup xfs_mount buffer target pointers based on superblock | |
779 | */ | |
780 | STATIC int | |
781 | xfs_setup_devices( | |
782 | struct xfs_mount *mp) | |
783 | { | |
784 | int error; | |
19f354d4 | 785 | |
e34b562c CH |
786 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
787 | mp->m_sb.sb_sectsize); | |
788 | if (error) | |
789 | return error; | |
790 | ||
791 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
792 | unsigned int log_sector_size = BBSIZE; | |
793 | ||
794 | if (xfs_sb_version_hassector(&mp->m_sb)) | |
795 | log_sector_size = mp->m_sb.sb_logsectsize; | |
796 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | |
797 | mp->m_sb.sb_blocksize, | |
798 | log_sector_size); | |
799 | if (error) | |
800 | return error; | |
801 | } | |
802 | if (mp->m_rtdev_targp) { | |
803 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | |
804 | mp->m_sb.sb_blocksize, | |
805 | mp->m_sb.sb_sectsize); | |
806 | if (error) | |
807 | return error; | |
808 | } | |
809 | ||
810 | return 0; | |
811 | } | |
19f354d4 | 812 | |
249a8c11 DC |
813 | /* |
814 | * XFS AIL push thread support | |
815 | */ | |
816 | void | |
817 | xfsaild_wakeup( | |
818 | xfs_mount_t *mp, | |
819 | xfs_lsn_t threshold_lsn) | |
820 | { | |
821 | mp->m_ail.xa_target = threshold_lsn; | |
822 | wake_up_process(mp->m_ail.xa_task); | |
823 | } | |
824 | ||
825 | int | |
826 | xfsaild( | |
827 | void *data) | |
828 | { | |
829 | xfs_mount_t *mp = (xfs_mount_t *)data; | |
830 | xfs_lsn_t last_pushed_lsn = 0; | |
831 | long tout = 0; | |
832 | ||
833 | while (!kthread_should_stop()) { | |
834 | if (tout) | |
835 | schedule_timeout_interruptible(msecs_to_jiffies(tout)); | |
836 | tout = 1000; | |
837 | ||
838 | /* swsusp */ | |
839 | try_to_freeze(); | |
840 | ||
841 | ASSERT(mp->m_log); | |
842 | if (XFS_FORCED_SHUTDOWN(mp)) | |
843 | continue; | |
844 | ||
845 | tout = xfsaild_push(mp, &last_pushed_lsn); | |
846 | } | |
847 | ||
848 | return 0; | |
849 | } /* xfsaild */ | |
850 | ||
851 | int | |
852 | xfsaild_start( | |
853 | xfs_mount_t *mp) | |
854 | { | |
855 | mp->m_ail.xa_target = 0; | |
856 | mp->m_ail.xa_task = kthread_run(xfsaild, mp, "xfsaild"); | |
857 | if (IS_ERR(mp->m_ail.xa_task)) | |
858 | return -PTR_ERR(mp->m_ail.xa_task); | |
859 | return 0; | |
860 | } | |
861 | ||
862 | void | |
863 | xfsaild_stop( | |
864 | xfs_mount_t *mp) | |
865 | { | |
866 | kthread_stop(mp->m_ail.xa_task); | |
867 | } | |
868 | ||
869 | ||
870 | ||
1da177e4 | 871 | STATIC struct inode * |
a50cd269 | 872 | xfs_fs_alloc_inode( |
1da177e4 LT |
873 | struct super_block *sb) |
874 | { | |
df80c933 | 875 | return kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP); |
1da177e4 LT |
876 | } |
877 | ||
878 | STATIC void | |
a50cd269 | 879 | xfs_fs_destroy_inode( |
1da177e4 LT |
880 | struct inode *inode) |
881 | { | |
a19d033c | 882 | kmem_zone_free(xfs_vnode_zone, inode); |
1da177e4 LT |
883 | } |
884 | ||
885 | STATIC void | |
a50cd269 | 886 | xfs_fs_inode_init_once( |
4ba9b9d0 | 887 | void *vnode) |
1da177e4 | 888 | { |
863890cd | 889 | inode_init_once((struct inode *)vnode); |
1da177e4 LT |
890 | } |
891 | ||
07c8f675 DC |
892 | |
893 | /* | |
894 | * Slab object creation initialisation for the XFS inode. | |
895 | * This covers only the idempotent fields in the XFS inode; | |
896 | * all other fields need to be initialised on allocation | |
897 | * from the slab. This avoids the need to repeatedly intialise | |
898 | * fields in the xfs inode that left in the initialise state | |
899 | * when freeing the inode. | |
900 | */ | |
901 | void | |
902 | xfs_inode_init_once( | |
07c8f675 DC |
903 | void *inode) |
904 | { | |
905 | struct xfs_inode *ip = inode; | |
906 | ||
907 | memset(ip, 0, sizeof(struct xfs_inode)); | |
908 | atomic_set(&ip->i_iocount, 0); | |
909 | atomic_set(&ip->i_pincount, 0); | |
910 | spin_lock_init(&ip->i_flags_lock); | |
911 | INIT_LIST_HEAD(&ip->i_reclaim); | |
912 | init_waitqueue_head(&ip->i_ipin_wait); | |
913 | /* | |
914 | * Because we want to use a counting completion, complete | |
915 | * the flush completion once to allow a single access to | |
916 | * the flush completion without blocking. | |
917 | */ | |
918 | init_completion(&ip->i_flush); | |
919 | complete(&ip->i_flush); | |
920 | ||
921 | mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER, | |
922 | "xfsino", ip->i_ino); | |
923 | mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino); | |
924 | } | |
925 | ||
1da177e4 LT |
926 | /* |
927 | * Attempt to flush the inode, this will actually fail | |
928 | * if the inode is pinned, but we dirty the inode again | |
929 | * at the point when it is unpinned after a log write, | |
8758280f | 930 | * since this is when the inode itself becomes flushable. |
1da177e4 LT |
931 | */ |
932 | STATIC int | |
a50cd269 | 933 | xfs_fs_write_inode( |
1da177e4 LT |
934 | struct inode *inode, |
935 | int sync) | |
936 | { | |
a3f74ffb DC |
937 | int error = 0; |
938 | int flags = 0; | |
1da177e4 | 939 | |
cf441eeb | 940 | xfs_itrace_entry(XFS_I(inode)); |
739bfb2a CH |
941 | if (sync) { |
942 | filemap_fdatawait(inode->i_mapping); | |
943 | flags |= FLUSH_SYNC; | |
1da177e4 | 944 | } |
739bfb2a | 945 | error = xfs_inode_flush(XFS_I(inode), flags); |
e893bffd LM |
946 | /* |
947 | * if we failed to write out the inode then mark | |
948 | * it dirty again so we'll try again later. | |
949 | */ | |
950 | if (error) | |
951 | mark_inode_dirty_sync(inode); | |
739bfb2a | 952 | |
1da177e4 LT |
953 | return -error; |
954 | } | |
955 | ||
956 | STATIC void | |
a50cd269 | 957 | xfs_fs_clear_inode( |
1da177e4 LT |
958 | struct inode *inode) |
959 | { | |
1543d79c | 960 | xfs_inode_t *ip = XFS_I(inode); |
56d433e4 | 961 | |
02ba71de | 962 | /* |
1543d79c | 963 | * ip can be null when xfs_iget_core calls xfs_idestroy if we |
02ba71de CH |
964 | * find an inode with di_mode == 0 but without IGET_CREATE set. |
965 | */ | |
1543d79c | 966 | if (ip) { |
cf441eeb | 967 | xfs_itrace_entry(ip); |
1543d79c CH |
968 | XFS_STATS_INC(vn_rele); |
969 | XFS_STATS_INC(vn_remove); | |
970 | XFS_STATS_INC(vn_reclaim); | |
971 | XFS_STATS_DEC(vn_active); | |
972 | ||
973 | xfs_inactive(ip); | |
974 | xfs_iflags_clear(ip, XFS_IMODIFIED); | |
975 | if (xfs_reclaim(ip)) | |
34a622b2 | 976 | panic("%s: cannot reclaim 0x%p\n", __func__, inode); |
b3aea4ed | 977 | } |
56d433e4 | 978 | |
739bfb2a | 979 | ASSERT(XFS_I(inode) == NULL); |
56d433e4 | 980 | } |
1da177e4 | 981 | |
a738159d CH |
982 | STATIC void |
983 | xfs_free_fsname( | |
984 | struct xfs_mount *mp) | |
985 | { | |
986 | kfree(mp->m_fsname); | |
987 | kfree(mp->m_rtname); | |
988 | kfree(mp->m_logname); | |
989 | } | |
990 | ||
1da177e4 | 991 | STATIC void |
a50cd269 | 992 | xfs_fs_put_super( |
1da177e4 LT |
993 | struct super_block *sb) |
994 | { | |
745f6919 | 995 | struct xfs_mount *mp = XFS_M(sb); |
e48ad316 CH |
996 | struct xfs_inode *rip = mp->m_rootip; |
997 | int unmount_event_flags = 0; | |
1da177e4 LT |
998 | int error; |
999 | ||
a167b17e | 1000 | xfs_syncd_stop(mp); |
be97d9d5 DC |
1001 | xfs_log_force(mp, 0, XFS_LOG_FORCE|XFS_LOG_SYNC); |
1002 | xfs_sync_inodes(mp, SYNC_ATTR|SYNC_DELWRI); | |
e48ad316 CH |
1003 | |
1004 | #ifdef HAVE_DMAPI | |
1005 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1006 | unmount_event_flags = | |
1007 | (mp->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? | |
1008 | 0 : DM_FLAGS_UNWANTED; | |
1009 | /* | |
1010 | * Ignore error from dmapi here, first unmount is not allowed | |
1011 | * to fail anyway, and second we wouldn't want to fail a | |
1012 | * unmount because of dmapi. | |
1013 | */ | |
1014 | XFS_SEND_PREUNMOUNT(mp, rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL, | |
1015 | NULL, NULL, 0, 0, unmount_event_flags); | |
1016 | } | |
1017 | #endif | |
1018 | ||
1019 | /* | |
1020 | * Blow away any referenced inode in the filestreams cache. | |
1021 | * This can and will cause log traffic as inodes go inactive | |
1022 | * here. | |
1023 | */ | |
1024 | xfs_filestream_unmount(mp); | |
1025 | ||
1026 | XFS_bflush(mp->m_ddev_targp); | |
1027 | error = xfs_unmount_flush(mp, 0); | |
1028 | WARN_ON(error); | |
1029 | ||
e48ad316 CH |
1030 | /* |
1031 | * If we're forcing a shutdown, typically because of a media error, | |
1032 | * we want to make sure we invalidate dirty pages that belong to | |
1033 | * referenced vnodes as well. | |
1034 | */ | |
1035 | if (XFS_FORCED_SHUTDOWN(mp)) { | |
1036 | error = xfs_sync(mp, SYNC_WAIT | SYNC_CLOSE); | |
1037 | ASSERT(error != EFSCORRUPTED); | |
1038 | } | |
1039 | ||
1040 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1041 | XFS_SEND_UNMOUNT(mp, rip, DM_RIGHT_NULL, 0, 0, | |
1042 | unmount_event_flags); | |
1043 | } | |
1044 | ||
19f354d4 | 1045 | xfs_unmountfs(mp); |
6203300e | 1046 | xfs_freesb(mp); |
c962fb79 | 1047 | xfs_icsb_destroy_counters(mp); |
19f354d4 | 1048 | xfs_close_devices(mp); |
e48ad316 CH |
1049 | xfs_qmops_put(mp); |
1050 | xfs_dmops_put(mp); | |
a738159d | 1051 | xfs_free_fsname(mp); |
c962fb79 | 1052 | kfree(mp); |
1da177e4 LT |
1053 | } |
1054 | ||
1055 | STATIC void | |
a50cd269 | 1056 | xfs_fs_write_super( |
1da177e4 LT |
1057 | struct super_block *sb) |
1058 | { | |
b83bd138 | 1059 | if (!(sb->s_flags & MS_RDONLY)) |
745f6919 | 1060 | xfs_sync(XFS_M(sb), SYNC_FSDATA); |
1da177e4 LT |
1061 | sb->s_dirt = 0; |
1062 | } | |
1063 | ||
1064 | STATIC int | |
a50cd269 | 1065 | xfs_fs_sync_super( |
1da177e4 LT |
1066 | struct super_block *sb, |
1067 | int wait) | |
1068 | { | |
745f6919 | 1069 | struct xfs_mount *mp = XFS_M(sb); |
b83bd138 NS |
1070 | int error; |
1071 | int flags; | |
1da177e4 | 1072 | |
e893bffd LM |
1073 | /* |
1074 | * Treat a sync operation like a freeze. This is to work | |
1075 | * around a race in sync_inodes() which works in two phases | |
1076 | * - an asynchronous flush, which can write out an inode | |
1077 | * without waiting for file size updates to complete, and a | |
1078 | * synchronous flush, which wont do anything because the | |
1079 | * async flush removed the inode's dirty flag. Also | |
1080 | * sync_inodes() will not see any files that just have | |
1081 | * outstanding transactions to be flushed because we don't | |
1082 | * dirty the Linux inode until after the transaction I/O | |
1083 | * completes. | |
1084 | */ | |
1085 | if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) { | |
2823945f DC |
1086 | /* |
1087 | * First stage of freeze - no more writers will make progress | |
1088 | * now we are here, so we flush delwri and delalloc buffers | |
1089 | * here, then wait for all I/O to complete. Data is frozen at | |
1090 | * that point. Metadata is not frozen, transactions can still | |
1091 | * occur here so don't bother flushing the buftarg (i.e | |
1092 | * SYNC_QUIESCE) because it'll just get dirty again. | |
1093 | */ | |
516b2e7c | 1094 | flags = SYNC_DATA_QUIESCE; |
2823945f | 1095 | } else |
e893bffd | 1096 | flags = SYNC_FSDATA; |
1da177e4 | 1097 | |
745f6919 | 1098 | error = xfs_sync(mp, flags); |
1da177e4 LT |
1099 | sb->s_dirt = 0; |
1100 | ||
1101 | if (unlikely(laptop_mode)) { | |
74394496 | 1102 | int prev_sync_seq = mp->m_sync_seq; |
1da177e4 LT |
1103 | |
1104 | /* | |
1105 | * The disk must be active because we're syncing. | |
1106 | * We schedule xfssyncd now (now that the disk is | |
1107 | * active) instead of later (when it might not be). | |
1108 | */ | |
74394496 | 1109 | wake_up_process(mp->m_sync_task); |
1da177e4 LT |
1110 | /* |
1111 | * We have to wait for the sync iteration to complete. | |
1112 | * If we don't, the disk activity caused by the sync | |
1113 | * will come after the sync is completed, and that | |
1114 | * triggers another sync from laptop mode. | |
1115 | */ | |
74394496 CH |
1116 | wait_event(mp->m_wait_single_sync_task, |
1117 | mp->m_sync_seq != prev_sync_seq); | |
1da177e4 LT |
1118 | } |
1119 | ||
1120 | return -error; | |
1121 | } | |
1122 | ||
1123 | STATIC int | |
a50cd269 | 1124 | xfs_fs_statfs( |
726c3342 | 1125 | struct dentry *dentry, |
1da177e4 LT |
1126 | struct kstatfs *statp) |
1127 | { | |
4ca488eb CH |
1128 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
1129 | xfs_sb_t *sbp = &mp->m_sb; | |
1130 | __uint64_t fakeinos, id; | |
1131 | xfs_extlen_t lsize; | |
1132 | ||
1133 | statp->f_type = XFS_SB_MAGIC; | |
1134 | statp->f_namelen = MAXNAMELEN - 1; | |
1135 | ||
1136 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); | |
1137 | statp->f_fsid.val[0] = (u32)id; | |
1138 | statp->f_fsid.val[1] = (u32)(id >> 32); | |
1139 | ||
d4d90b57 | 1140 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
4ca488eb CH |
1141 | |
1142 | spin_lock(&mp->m_sb_lock); | |
1143 | statp->f_bsize = sbp->sb_blocksize; | |
1144 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; | |
1145 | statp->f_blocks = sbp->sb_dblocks - lsize; | |
1146 | statp->f_bfree = statp->f_bavail = | |
1147 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); | |
1148 | fakeinos = statp->f_bfree << sbp->sb_inopblog; | |
1149 | #if XFS_BIG_INUMS | |
1150 | fakeinos += mp->m_inoadd; | |
1151 | #endif | |
1152 | statp->f_files = | |
1153 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); | |
1154 | if (mp->m_maxicount) | |
1155 | #if XFS_BIG_INUMS | |
1156 | if (!mp->m_inoadd) | |
1157 | #endif | |
1158 | statp->f_files = min_t(typeof(statp->f_files), | |
1159 | statp->f_files, | |
1160 | mp->m_maxicount); | |
1161 | statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); | |
1162 | spin_unlock(&mp->m_sb_lock); | |
1163 | ||
1164 | XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp); | |
1165 | return 0; | |
1da177e4 LT |
1166 | } |
1167 | ||
1168 | STATIC int | |
a50cd269 | 1169 | xfs_fs_remount( |
1da177e4 LT |
1170 | struct super_block *sb, |
1171 | int *flags, | |
1172 | char *options) | |
1173 | { | |
745f6919 | 1174 | struct xfs_mount *mp = XFS_M(sb); |
62a877e3 CH |
1175 | substring_t args[MAX_OPT_ARGS]; |
1176 | char *p; | |
1da177e4 | 1177 | |
62a877e3 CH |
1178 | while ((p = strsep(&options, ",")) != NULL) { |
1179 | int token; | |
bdd907ba | 1180 | |
62a877e3 CH |
1181 | if (!*p) |
1182 | continue; | |
48b62a1a | 1183 | |
62a877e3 CH |
1184 | token = match_token(p, tokens, args); |
1185 | switch (token) { | |
1186 | case Opt_barrier: | |
48b62a1a | 1187 | mp->m_flags |= XFS_MOUNT_BARRIER; |
62a877e3 CH |
1188 | |
1189 | /* | |
1190 | * Test if barriers are actually working if we can, | |
1191 | * else delay this check until the filesystem is | |
1192 | * marked writeable. | |
1193 | */ | |
1194 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) | |
1195 | xfs_mountfs_check_barriers(mp); | |
1196 | break; | |
1197 | case Opt_nobarrier: | |
48b62a1a | 1198 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
62a877e3 CH |
1199 | break; |
1200 | default: | |
6efdf281 CH |
1201 | /* |
1202 | * Logically we would return an error here to prevent | |
1203 | * users from believing they might have changed | |
1204 | * mount options using remount which can't be changed. | |
1205 | * | |
1206 | * But unfortunately mount(8) adds all options from | |
1207 | * mtab and fstab to the mount arguments in some cases | |
1208 | * so we can't blindly reject options, but have to | |
1209 | * check for each specified option if it actually | |
1210 | * differs from the currently set option and only | |
1211 | * reject it if that's the case. | |
1212 | * | |
1213 | * Until that is implemented we return success for | |
1214 | * every remount request, and silently ignore all | |
1215 | * options that we can't actually change. | |
1216 | */ | |
1217 | #if 0 | |
62a877e3 CH |
1218 | printk(KERN_INFO |
1219 | "XFS: mount option \"%s\" not supported for remount\n", p); | |
1220 | return -EINVAL; | |
6efdf281 | 1221 | #else |
6c5e51da | 1222 | break; |
6efdf281 | 1223 | #endif |
48b62a1a | 1224 | } |
62a877e3 CH |
1225 | } |
1226 | ||
1227 | /* rw/ro -> rw */ | |
1228 | if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(*flags & MS_RDONLY)) { | |
1229 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | |
1230 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1231 | xfs_mountfs_check_barriers(mp); | |
1232 | } | |
1233 | ||
1234 | /* rw -> ro */ | |
1235 | if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (*flags & MS_RDONLY)) { | |
48b62a1a CH |
1236 | xfs_filestream_flush(mp); |
1237 | xfs_sync(mp, SYNC_DATA_QUIESCE); | |
1238 | xfs_attr_quiesce(mp); | |
1239 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1240 | } | |
1241 | ||
62a877e3 | 1242 | return 0; |
1da177e4 LT |
1243 | } |
1244 | ||
9909c4aa CH |
1245 | /* |
1246 | * Second stage of a freeze. The data is already frozen so we only | |
1247 | * need to take care of themetadata. Once that's done write a dummy | |
1248 | * record to dirty the log in case of a crash while frozen. | |
1249 | */ | |
1da177e4 | 1250 | STATIC void |
a50cd269 | 1251 | xfs_fs_lockfs( |
1da177e4 LT |
1252 | struct super_block *sb) |
1253 | { | |
9909c4aa CH |
1254 | struct xfs_mount *mp = XFS_M(sb); |
1255 | ||
1256 | xfs_attr_quiesce(mp); | |
1257 | xfs_fs_log_dummy(mp); | |
1da177e4 LT |
1258 | } |
1259 | ||
1260 | STATIC int | |
a50cd269 | 1261 | xfs_fs_show_options( |
1da177e4 LT |
1262 | struct seq_file *m, |
1263 | struct vfsmount *mnt) | |
1264 | { | |
745f6919 | 1265 | return -xfs_showargs(XFS_M(mnt->mnt_sb), m); |
1da177e4 LT |
1266 | } |
1267 | ||
ee34807a | 1268 | STATIC int |
a50cd269 | 1269 | xfs_fs_quotasync( |
ee34807a NS |
1270 | struct super_block *sb, |
1271 | int type) | |
1272 | { | |
b09cc771 | 1273 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL); |
ee34807a NS |
1274 | } |
1275 | ||
1da177e4 | 1276 | STATIC int |
a50cd269 | 1277 | xfs_fs_getxstate( |
1da177e4 LT |
1278 | struct super_block *sb, |
1279 | struct fs_quota_stat *fqs) | |
1280 | { | |
b09cc771 | 1281 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs); |
1da177e4 LT |
1282 | } |
1283 | ||
1284 | STATIC int | |
a50cd269 | 1285 | xfs_fs_setxstate( |
1da177e4 LT |
1286 | struct super_block *sb, |
1287 | unsigned int flags, | |
1288 | int op) | |
1289 | { | |
b09cc771 | 1290 | return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags); |
1da177e4 LT |
1291 | } |
1292 | ||
1293 | STATIC int | |
a50cd269 | 1294 | xfs_fs_getxquota( |
1da177e4 LT |
1295 | struct super_block *sb, |
1296 | int type, | |
1297 | qid_t id, | |
1298 | struct fs_disk_quota *fdq) | |
1299 | { | |
b09cc771 | 1300 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1301 | (type == USRQUOTA) ? Q_XGETQUOTA : |
1302 | ((type == GRPQUOTA) ? Q_XGETGQUOTA : | |
1303 | Q_XGETPQUOTA), id, (caddr_t)fdq); | |
1da177e4 LT |
1304 | } |
1305 | ||
1306 | STATIC int | |
a50cd269 | 1307 | xfs_fs_setxquota( |
1da177e4 LT |
1308 | struct super_block *sb, |
1309 | int type, | |
1310 | qid_t id, | |
1311 | struct fs_disk_quota *fdq) | |
1312 | { | |
b09cc771 | 1313 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1314 | (type == USRQUOTA) ? Q_XSETQLIM : |
1315 | ((type == GRPQUOTA) ? Q_XSETGQLIM : | |
1316 | Q_XSETPQLIM), id, (caddr_t)fdq); | |
1da177e4 LT |
1317 | } |
1318 | ||
f8f15e42 CH |
1319 | /* |
1320 | * This function fills in xfs_mount_t fields based on mount args. | |
1321 | * Note: the superblock has _not_ yet been read in. | |
1322 | */ | |
1323 | STATIC int | |
1324 | xfs_start_flags( | |
1325 | struct xfs_mount_args *ap, | |
1326 | struct xfs_mount *mp) | |
1327 | { | |
a738159d CH |
1328 | int error; |
1329 | ||
f8f15e42 CH |
1330 | /* Values are in BBs */ |
1331 | if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | |
1332 | /* | |
1333 | * At this point the superblock has not been read | |
1334 | * in, therefore we do not know the block size. | |
1335 | * Before the mount call ends we will convert | |
1336 | * these to FSBs. | |
1337 | */ | |
1338 | mp->m_dalign = ap->sunit; | |
1339 | mp->m_swidth = ap->swidth; | |
1340 | } | |
1341 | ||
1342 | if (ap->logbufs != -1 && | |
1343 | ap->logbufs != 0 && | |
1344 | (ap->logbufs < XLOG_MIN_ICLOGS || | |
1345 | ap->logbufs > XLOG_MAX_ICLOGS)) { | |
1346 | cmn_err(CE_WARN, | |
1347 | "XFS: invalid logbufs value: %d [not %d-%d]", | |
1348 | ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); | |
1349 | return XFS_ERROR(EINVAL); | |
1350 | } | |
1351 | mp->m_logbufs = ap->logbufs; | |
1352 | if (ap->logbufsize != -1 && | |
1353 | ap->logbufsize != 0 && | |
1354 | (ap->logbufsize < XLOG_MIN_RECORD_BSIZE || | |
1355 | ap->logbufsize > XLOG_MAX_RECORD_BSIZE || | |
1356 | !is_power_of_2(ap->logbufsize))) { | |
1357 | cmn_err(CE_WARN, | |
1358 | "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | |
1359 | ap->logbufsize); | |
1360 | return XFS_ERROR(EINVAL); | |
1361 | } | |
a738159d CH |
1362 | |
1363 | error = ENOMEM; | |
1364 | ||
f8f15e42 CH |
1365 | mp->m_logbsize = ap->logbufsize; |
1366 | mp->m_fsname_len = strlen(ap->fsname) + 1; | |
a738159d CH |
1367 | |
1368 | mp->m_fsname = kstrdup(ap->fsname, GFP_KERNEL); | |
1369 | if (!mp->m_fsname) | |
1370 | goto out; | |
1371 | ||
f8f15e42 | 1372 | if (ap->rtname[0]) { |
a738159d CH |
1373 | mp->m_rtname = kstrdup(ap->rtname, GFP_KERNEL); |
1374 | if (!mp->m_rtname) | |
1375 | goto out_free_fsname; | |
1376 | ||
f8f15e42 | 1377 | } |
a738159d | 1378 | |
f8f15e42 | 1379 | if (ap->logname[0]) { |
a738159d CH |
1380 | mp->m_logname = kstrdup(ap->logname, GFP_KERNEL); |
1381 | if (!mp->m_logname) | |
1382 | goto out_free_rtname; | |
f8f15e42 CH |
1383 | } |
1384 | ||
1385 | if (ap->flags & XFSMNT_WSYNC) | |
1386 | mp->m_flags |= XFS_MOUNT_WSYNC; | |
1387 | #if XFS_BIG_INUMS | |
1388 | if (ap->flags & XFSMNT_INO64) { | |
1389 | mp->m_flags |= XFS_MOUNT_INO64; | |
1390 | mp->m_inoadd = XFS_INO64_OFFSET; | |
1391 | } | |
1392 | #endif | |
1393 | if (ap->flags & XFSMNT_RETERR) | |
1394 | mp->m_flags |= XFS_MOUNT_RETERR; | |
1395 | if (ap->flags & XFSMNT_NOALIGN) | |
1396 | mp->m_flags |= XFS_MOUNT_NOALIGN; | |
1397 | if (ap->flags & XFSMNT_SWALLOC) | |
1398 | mp->m_flags |= XFS_MOUNT_SWALLOC; | |
1399 | if (ap->flags & XFSMNT_OSYNCISOSYNC) | |
1400 | mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC; | |
1401 | if (ap->flags & XFSMNT_32BITINODES) | |
1402 | mp->m_flags |= XFS_MOUNT_32BITINODES; | |
1403 | ||
1404 | if (ap->flags & XFSMNT_IOSIZE) { | |
1405 | if (ap->iosizelog > XFS_MAX_IO_LOG || | |
1406 | ap->iosizelog < XFS_MIN_IO_LOG) { | |
1407 | cmn_err(CE_WARN, | |
1408 | "XFS: invalid log iosize: %d [not %d-%d]", | |
1409 | ap->iosizelog, XFS_MIN_IO_LOG, | |
1410 | XFS_MAX_IO_LOG); | |
1411 | return XFS_ERROR(EINVAL); | |
1412 | } | |
1413 | ||
1414 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | |
1415 | mp->m_readio_log = mp->m_writeio_log = ap->iosizelog; | |
1416 | } | |
1417 | ||
1418 | if (ap->flags & XFSMNT_IKEEP) | |
1419 | mp->m_flags |= XFS_MOUNT_IKEEP; | |
1420 | if (ap->flags & XFSMNT_DIRSYNC) | |
1421 | mp->m_flags |= XFS_MOUNT_DIRSYNC; | |
1422 | if (ap->flags & XFSMNT_ATTR2) | |
1423 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1424 | if (ap->flags & XFSMNT_NOATTR2) | |
1425 | mp->m_flags |= XFS_MOUNT_NOATTR2; | |
1426 | ||
1427 | if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE) | |
1428 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; | |
1429 | ||
1430 | /* | |
1431 | * no recovery flag requires a read-only mount | |
1432 | */ | |
1433 | if (ap->flags & XFSMNT_NORECOVERY) { | |
1434 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { | |
1435 | cmn_err(CE_WARN, | |
1436 | "XFS: tried to mount a FS read-write without recovery!"); | |
1437 | return XFS_ERROR(EINVAL); | |
1438 | } | |
1439 | mp->m_flags |= XFS_MOUNT_NORECOVERY; | |
1440 | } | |
1441 | ||
1442 | if (ap->flags & XFSMNT_NOUUID) | |
1443 | mp->m_flags |= XFS_MOUNT_NOUUID; | |
1444 | if (ap->flags & XFSMNT_BARRIER) | |
1445 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
1446 | else | |
1447 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
1448 | ||
1449 | if (ap->flags2 & XFSMNT2_FILESTREAMS) | |
1450 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; | |
1451 | ||
1452 | if (ap->flags & XFSMNT_DMAPI) | |
1453 | mp->m_flags |= XFS_MOUNT_DMAPI; | |
1454 | return 0; | |
a738159d CH |
1455 | |
1456 | ||
1457 | out_free_rtname: | |
1458 | kfree(mp->m_rtname); | |
1459 | out_free_fsname: | |
1460 | kfree(mp->m_fsname); | |
1461 | out: | |
1462 | return error; | |
f8f15e42 CH |
1463 | } |
1464 | ||
1465 | /* | |
1466 | * This function fills in xfs_mount_t fields based on mount args. | |
1467 | * Note: the superblock _has_ now been read in. | |
1468 | */ | |
1469 | STATIC int | |
1470 | xfs_finish_flags( | |
1471 | struct xfs_mount_args *ap, | |
1472 | struct xfs_mount *mp) | |
1473 | { | |
1474 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | |
1475 | ||
1476 | /* Fail a mount where the logbuf is smaller then the log stripe */ | |
1477 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { | |
1478 | if ((ap->logbufsize <= 0) && | |
1479 | (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) { | |
1480 | mp->m_logbsize = mp->m_sb.sb_logsunit; | |
1481 | } else if (ap->logbufsize > 0 && | |
1482 | ap->logbufsize < mp->m_sb.sb_logsunit) { | |
1483 | cmn_err(CE_WARN, | |
1484 | "XFS: logbuf size must be greater than or equal to log stripe size"); | |
1485 | return XFS_ERROR(EINVAL); | |
1486 | } | |
1487 | } else { | |
1488 | /* Fail a mount if the logbuf is larger than 32K */ | |
1489 | if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) { | |
1490 | cmn_err(CE_WARN, | |
1491 | "XFS: logbuf size for version 1 logs must be 16K or 32K"); | |
1492 | return XFS_ERROR(EINVAL); | |
1493 | } | |
1494 | } | |
1495 | ||
1496 | /* | |
1497 | * mkfs'ed attr2 will turn on attr2 mount unless explicitly | |
1498 | * told by noattr2 to turn it off | |
1499 | */ | |
1500 | if (xfs_sb_version_hasattr2(&mp->m_sb) && | |
1501 | !(ap->flags & XFSMNT_NOATTR2)) | |
1502 | mp->m_flags |= XFS_MOUNT_ATTR2; | |
1503 | ||
1504 | /* | |
1505 | * prohibit r/w mounts of read-only filesystems | |
1506 | */ | |
1507 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { | |
1508 | cmn_err(CE_WARN, | |
1509 | "XFS: cannot mount a read-only filesystem as read-write"); | |
1510 | return XFS_ERROR(EROFS); | |
1511 | } | |
1512 | ||
1513 | /* | |
1514 | * check for shared mount. | |
1515 | */ | |
1516 | if (ap->flags & XFSMNT_SHARED) { | |
1517 | if (!xfs_sb_version_hasshared(&mp->m_sb)) | |
1518 | return XFS_ERROR(EINVAL); | |
1519 | ||
1520 | /* | |
1521 | * For IRIX 6.5, shared mounts must have the shared | |
1522 | * version bit set, have the persistent readonly | |
1523 | * field set, must be version 0 and can only be mounted | |
1524 | * read-only. | |
1525 | */ | |
1526 | if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) || | |
1527 | (mp->m_sb.sb_shared_vn != 0)) | |
1528 | return XFS_ERROR(EINVAL); | |
1529 | ||
1530 | mp->m_flags |= XFS_MOUNT_SHARED; | |
1531 | ||
1532 | /* | |
1533 | * Shared XFS V0 can't deal with DMI. Return EINVAL. | |
1534 | */ | |
1535 | if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI)) | |
1536 | return XFS_ERROR(EINVAL); | |
1537 | } | |
1538 | ||
1539 | if (ap->flags & XFSMNT_UQUOTA) { | |
1540 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); | |
1541 | if (ap->flags & XFSMNT_UQUOTAENF) | |
1542 | mp->m_qflags |= XFS_UQUOTA_ENFD; | |
1543 | } | |
1544 | ||
1545 | if (ap->flags & XFSMNT_GQUOTA) { | |
1546 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); | |
1547 | if (ap->flags & XFSMNT_GQUOTAENF) | |
1548 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1549 | } else if (ap->flags & XFSMNT_PQUOTA) { | |
1550 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); | |
1551 | if (ap->flags & XFSMNT_PQUOTAENF) | |
1552 | mp->m_qflags |= XFS_OQUOTA_ENFD; | |
1553 | } | |
1554 | ||
1555 | return 0; | |
1556 | } | |
1557 | ||
1da177e4 | 1558 | STATIC int |
a50cd269 | 1559 | xfs_fs_fill_super( |
1da177e4 LT |
1560 | struct super_block *sb, |
1561 | void *data, | |
1562 | int silent) | |
1563 | { | |
f3dcc13f | 1564 | struct inode *root; |
745f6919 | 1565 | struct xfs_mount *mp = NULL; |
bdd907ba | 1566 | struct xfs_mount_args *args; |
c962fb79 | 1567 | int flags = 0, error = ENOMEM; |
1da177e4 | 1568 | |
bdd907ba CH |
1569 | args = xfs_args_allocate(sb, silent); |
1570 | if (!args) | |
1571 | return -ENOMEM; | |
1572 | ||
c962fb79 CH |
1573 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
1574 | if (!mp) | |
1575 | goto out_free_args; | |
1da177e4 | 1576 | |
c962fb79 CH |
1577 | spin_lock_init(&mp->m_sb_lock); |
1578 | mutex_init(&mp->m_ilock); | |
1579 | mutex_init(&mp->m_growlock); | |
1580 | atomic_set(&mp->m_active_trans, 0); | |
74394496 CH |
1581 | INIT_LIST_HEAD(&mp->m_sync_list); |
1582 | spin_lock_init(&mp->m_sync_lock); | |
1583 | init_waitqueue_head(&mp->m_wait_single_sync_task); | |
1584 | ||
b267ce99 CH |
1585 | mp->m_super = sb; |
1586 | sb->s_fs_info = mp; | |
1da177e4 | 1587 | |
bd186aa9 CH |
1588 | if (sb->s_flags & MS_RDONLY) |
1589 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
1590 | ||
745f6919 CH |
1591 | error = xfs_parseargs(mp, (char *)data, args, 0); |
1592 | if (error) | |
c962fb79 | 1593 | goto out_free_mp; |
1da177e4 LT |
1594 | |
1595 | sb_min_blocksize(sb, BBSIZE); | |
0ec58516 | 1596 | sb->s_xattr = xfs_xattr_handlers; |
a50cd269 | 1597 | sb->s_export_op = &xfs_export_operations; |
a50cd269 NS |
1598 | sb->s_qcop = &xfs_quotactl_operations; |
1599 | sb->s_op = &xfs_super_operations; | |
1da177e4 | 1600 | |
f8f15e42 CH |
1601 | error = xfs_dmops_get(mp, args); |
1602 | if (error) | |
c962fb79 | 1603 | goto out_free_mp; |
f8f15e42 | 1604 | error = xfs_qmops_get(mp, args); |
745f6919 | 1605 | if (error) |
19f354d4 | 1606 | goto out_put_dmops; |
1da177e4 | 1607 | |
f8f15e42 CH |
1608 | if (args->flags & XFSMNT_QUIET) |
1609 | flags |= XFS_MFSI_QUIET; | |
1610 | ||
19f354d4 CH |
1611 | error = xfs_open_devices(mp, args); |
1612 | if (error) | |
1613 | goto out_put_qmops; | |
f8f15e42 | 1614 | |
c962fb79 CH |
1615 | if (xfs_icsb_init_counters(mp)) |
1616 | mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB; | |
1617 | ||
f8f15e42 CH |
1618 | /* |
1619 | * Setup flags based on mount(2) options and then the superblock | |
1620 | */ | |
1621 | error = xfs_start_flags(args, mp); | |
1622 | if (error) | |
a738159d | 1623 | goto out_free_fsname; |
f8f15e42 CH |
1624 | error = xfs_readsb(mp, flags); |
1625 | if (error) | |
a738159d | 1626 | goto out_free_fsname; |
f8f15e42 CH |
1627 | error = xfs_finish_flags(args, mp); |
1628 | if (error) | |
effa2eda | 1629 | goto out_free_sb; |
f8f15e42 | 1630 | |
e34b562c | 1631 | error = xfs_setup_devices(mp); |
19f354d4 | 1632 | if (error) |
effa2eda | 1633 | goto out_free_sb; |
f8f15e42 CH |
1634 | |
1635 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1636 | xfs_mountfs_check_barriers(mp); | |
1637 | ||
1638 | error = xfs_filestream_mount(mp); | |
1639 | if (error) | |
effa2eda | 1640 | goto out_free_sb; |
f8f15e42 | 1641 | |
4249023a | 1642 | error = xfs_mountfs(mp); |
f8f15e42 | 1643 | if (error) |
120226c1 | 1644 | goto out_filestream_unmount; |
f8f15e42 CH |
1645 | |
1646 | XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname); | |
1647 | ||
1da177e4 | 1648 | sb->s_dirt = 1; |
4ca488eb CH |
1649 | sb->s_magic = XFS_SB_MAGIC; |
1650 | sb->s_blocksize = mp->m_sb.sb_blocksize; | |
1651 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; | |
1da177e4 LT |
1652 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
1653 | sb->s_time_gran = 1; | |
1654 | set_posix_acl_flag(sb); | |
1655 | ||
01651646 | 1656 | root = igrab(VFS_I(mp->m_rootip)); |
f3dcc13f | 1657 | if (!root) { |
cbc89dcf | 1658 | error = ENOENT; |
1da177e4 | 1659 | goto fail_unmount; |
cbc89dcf | 1660 | } |
f3dcc13f CH |
1661 | if (is_bad_inode(root)) { |
1662 | error = EINVAL; | |
1da177e4 LT |
1663 | goto fail_vnrele; |
1664 | } | |
f3dcc13f CH |
1665 | sb->s_root = d_alloc_root(root); |
1666 | if (!sb->s_root) { | |
1667 | error = ENOMEM; | |
1da177e4 LT |
1668 | goto fail_vnrele; |
1669 | } | |
74394496 | 1670 | |
a167b17e DC |
1671 | error = xfs_syncd_init(mp); |
1672 | if (error) | |
1da177e4 | 1673 | goto fail_vnrele; |
74394496 | 1674 | |
cf441eeb | 1675 | xfs_itrace_exit(XFS_I(sb->s_root->d_inode)); |
1da177e4 | 1676 | |
bdd907ba | 1677 | kfree(args); |
1da177e4 LT |
1678 | return 0; |
1679 | ||
120226c1 CH |
1680 | out_filestream_unmount: |
1681 | xfs_filestream_unmount(mp); | |
effa2eda CH |
1682 | out_free_sb: |
1683 | xfs_freesb(mp); | |
a738159d CH |
1684 | out_free_fsname: |
1685 | xfs_free_fsname(mp); | |
c962fb79 | 1686 | xfs_icsb_destroy_counters(mp); |
19f354d4 CH |
1687 | xfs_close_devices(mp); |
1688 | out_put_qmops: | |
f8f15e42 | 1689 | xfs_qmops_put(mp); |
19f354d4 | 1690 | out_put_dmops: |
f8f15e42 | 1691 | xfs_dmops_put(mp); |
c962fb79 CH |
1692 | out_free_mp: |
1693 | kfree(mp); | |
1694 | out_free_args: | |
1695 | kfree(args); | |
1696 | return -error; | |
f8f15e42 CH |
1697 | |
1698 | fail_vnrele: | |
1da177e4 LT |
1699 | if (sb->s_root) { |
1700 | dput(sb->s_root); | |
1701 | sb->s_root = NULL; | |
1702 | } else { | |
f3dcc13f | 1703 | iput(root); |
1da177e4 LT |
1704 | } |
1705 | ||
f8f15e42 | 1706 | fail_unmount: |
e48ad316 CH |
1707 | /* |
1708 | * Blow away any referenced inode in the filestreams cache. | |
1709 | * This can and will cause log traffic as inodes go inactive | |
1710 | * here. | |
1711 | */ | |
1712 | xfs_filestream_unmount(mp); | |
1713 | ||
1714 | XFS_bflush(mp->m_ddev_targp); | |
1715 | error = xfs_unmount_flush(mp, 0); | |
1716 | WARN_ON(error); | |
1717 | ||
19f354d4 | 1718 | xfs_unmountfs(mp); |
6203300e | 1719 | goto out_free_sb; |
1da177e4 LT |
1720 | } |
1721 | ||
454e2398 | 1722 | STATIC int |
a50cd269 | 1723 | xfs_fs_get_sb( |
1da177e4 LT |
1724 | struct file_system_type *fs_type, |
1725 | int flags, | |
1726 | const char *dev_name, | |
454e2398 DH |
1727 | void *data, |
1728 | struct vfsmount *mnt) | |
1da177e4 | 1729 | { |
454e2398 DH |
1730 | return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super, |
1731 | mnt); | |
a50cd269 NS |
1732 | } |
1733 | ||
7989cb8e | 1734 | static struct super_operations xfs_super_operations = { |
a50cd269 NS |
1735 | .alloc_inode = xfs_fs_alloc_inode, |
1736 | .destroy_inode = xfs_fs_destroy_inode, | |
1737 | .write_inode = xfs_fs_write_inode, | |
1738 | .clear_inode = xfs_fs_clear_inode, | |
1739 | .put_super = xfs_fs_put_super, | |
1740 | .write_super = xfs_fs_write_super, | |
1741 | .sync_fs = xfs_fs_sync_super, | |
1742 | .write_super_lockfs = xfs_fs_lockfs, | |
1743 | .statfs = xfs_fs_statfs, | |
1744 | .remount_fs = xfs_fs_remount, | |
1745 | .show_options = xfs_fs_show_options, | |
1da177e4 LT |
1746 | }; |
1747 | ||
7989cb8e | 1748 | static struct quotactl_ops xfs_quotactl_operations = { |
a50cd269 NS |
1749 | .quota_sync = xfs_fs_quotasync, |
1750 | .get_xstate = xfs_fs_getxstate, | |
1751 | .set_xstate = xfs_fs_setxstate, | |
1752 | .get_xquota = xfs_fs_getxquota, | |
1753 | .set_xquota = xfs_fs_setxquota, | |
1da177e4 LT |
1754 | }; |
1755 | ||
5085b607 | 1756 | static struct file_system_type xfs_fs_type = { |
1da177e4 LT |
1757 | .owner = THIS_MODULE, |
1758 | .name = "xfs", | |
a50cd269 | 1759 | .get_sb = xfs_fs_get_sb, |
1da177e4 LT |
1760 | .kill_sb = kill_block_super, |
1761 | .fs_flags = FS_REQUIRES_DEV, | |
1762 | }; | |
1763 | ||
9f8868ff CH |
1764 | STATIC int __init |
1765 | xfs_alloc_trace_bufs(void) | |
1766 | { | |
1767 | #ifdef XFS_ALLOC_TRACE | |
1768 | xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_MAYFAIL); | |
1769 | if (!xfs_alloc_trace_buf) | |
1770 | goto out; | |
1771 | #endif | |
1772 | #ifdef XFS_BMAP_TRACE | |
1773 | xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_MAYFAIL); | |
1774 | if (!xfs_bmap_trace_buf) | |
1775 | goto out_free_alloc_trace; | |
1776 | #endif | |
8c4ed633 CH |
1777 | #ifdef XFS_BTREE_TRACE |
1778 | xfs_allocbt_trace_buf = ktrace_alloc(XFS_ALLOCBT_TRACE_SIZE, | |
1779 | KM_MAYFAIL); | |
1780 | if (!xfs_allocbt_trace_buf) | |
1781 | goto out_free_bmap_trace; | |
1782 | ||
1783 | xfs_inobt_trace_buf = ktrace_alloc(XFS_INOBT_TRACE_SIZE, KM_MAYFAIL); | |
1784 | if (!xfs_inobt_trace_buf) | |
1785 | goto out_free_allocbt_trace; | |
1786 | ||
9f8868ff CH |
1787 | xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_MAYFAIL); |
1788 | if (!xfs_bmbt_trace_buf) | |
8c4ed633 | 1789 | goto out_free_inobt_trace; |
9f8868ff CH |
1790 | #endif |
1791 | #ifdef XFS_ATTR_TRACE | |
1792 | xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_MAYFAIL); | |
1793 | if (!xfs_attr_trace_buf) | |
1794 | goto out_free_bmbt_trace; | |
1795 | #endif | |
1796 | #ifdef XFS_DIR2_TRACE | |
1797 | xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_MAYFAIL); | |
1798 | if (!xfs_dir2_trace_buf) | |
1799 | goto out_free_attr_trace; | |
1800 | #endif | |
1801 | ||
1802 | return 0; | |
1803 | ||
1804 | #ifdef XFS_DIR2_TRACE | |
1805 | out_free_attr_trace: | |
1806 | #endif | |
1807 | #ifdef XFS_ATTR_TRACE | |
1808 | ktrace_free(xfs_attr_trace_buf); | |
1809 | out_free_bmbt_trace: | |
1810 | #endif | |
8c4ed633 | 1811 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1812 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1813 | out_free_inobt_trace: |
1814 | ktrace_free(xfs_inobt_trace_buf); | |
1815 | out_free_allocbt_trace: | |
1816 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1817 | out_free_bmap_trace: |
1818 | #endif | |
1819 | #ifdef XFS_BMAP_TRACE | |
1820 | ktrace_free(xfs_bmap_trace_buf); | |
1821 | out_free_alloc_trace: | |
1822 | #endif | |
1823 | #ifdef XFS_ALLOC_TRACE | |
1824 | ktrace_free(xfs_alloc_trace_buf); | |
1825 | out: | |
1826 | #endif | |
1827 | return -ENOMEM; | |
1828 | } | |
1829 | ||
1830 | STATIC void | |
1831 | xfs_free_trace_bufs(void) | |
1832 | { | |
1833 | #ifdef XFS_DIR2_TRACE | |
1834 | ktrace_free(xfs_dir2_trace_buf); | |
1835 | #endif | |
1836 | #ifdef XFS_ATTR_TRACE | |
1837 | ktrace_free(xfs_attr_trace_buf); | |
1838 | #endif | |
8c4ed633 | 1839 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1840 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1841 | ktrace_free(xfs_inobt_trace_buf); |
1842 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1843 | #endif |
1844 | #ifdef XFS_BMAP_TRACE | |
1845 | ktrace_free(xfs_bmap_trace_buf); | |
1846 | #endif | |
1847 | #ifdef XFS_ALLOC_TRACE | |
1848 | ktrace_free(xfs_alloc_trace_buf); | |
1849 | #endif | |
1850 | } | |
1851 | ||
1852 | STATIC int __init | |
1853 | xfs_init_zones(void) | |
1854 | { | |
5ec7f8c7 | 1855 | xfs_vnode_zone = kmem_zone_init_flags(sizeof(struct inode), "xfs_vnode", |
9f8868ff CH |
1856 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | |
1857 | KM_ZONE_SPREAD, | |
1858 | xfs_fs_inode_init_once); | |
1859 | if (!xfs_vnode_zone) | |
1860 | goto out; | |
1861 | ||
1862 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); | |
1863 | if (!xfs_ioend_zone) | |
1864 | goto out_destroy_vnode_zone; | |
1865 | ||
1866 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, | |
1867 | xfs_ioend_zone); | |
1868 | if (!xfs_ioend_pool) | |
1869 | goto out_destroy_ioend_zone; | |
1870 | ||
1871 | xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t), | |
1872 | "xfs_log_ticket"); | |
1873 | if (!xfs_log_ticket_zone) | |
1874 | goto out_destroy_ioend_pool; | |
1875 | ||
1876 | xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t), | |
1877 | "xfs_bmap_free_item"); | |
1878 | if (!xfs_bmap_free_item_zone) | |
1879 | goto out_destroy_log_ticket_zone; | |
1880 | xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t), | |
1881 | "xfs_btree_cur"); | |
1882 | if (!xfs_btree_cur_zone) | |
1883 | goto out_destroy_bmap_free_item_zone; | |
1884 | ||
1885 | xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t), | |
1886 | "xfs_da_state"); | |
1887 | if (!xfs_da_state_zone) | |
1888 | goto out_destroy_btree_cur_zone; | |
1889 | ||
1890 | xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf"); | |
1891 | if (!xfs_dabuf_zone) | |
1892 | goto out_destroy_da_state_zone; | |
1893 | ||
1894 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); | |
1895 | if (!xfs_ifork_zone) | |
1896 | goto out_destroy_dabuf_zone; | |
1897 | ||
1898 | xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans"); | |
1899 | if (!xfs_trans_zone) | |
1900 | goto out_destroy_ifork_zone; | |
1901 | ||
1902 | /* | |
1903 | * The size of the zone allocated buf log item is the maximum | |
1904 | * size possible under XFS. This wastes a little bit of memory, | |
1905 | * but it is much faster. | |
1906 | */ | |
1907 | xfs_buf_item_zone = kmem_zone_init((sizeof(xfs_buf_log_item_t) + | |
1908 | (((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) / | |
1909 | NBWORD) * sizeof(int))), "xfs_buf_item"); | |
1910 | if (!xfs_buf_item_zone) | |
1911 | goto out_destroy_trans_zone; | |
1912 | ||
1913 | xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) + | |
1914 | ((XFS_EFD_MAX_FAST_EXTENTS - 1) * | |
1915 | sizeof(xfs_extent_t))), "xfs_efd_item"); | |
1916 | if (!xfs_efd_zone) | |
1917 | goto out_destroy_buf_item_zone; | |
1918 | ||
1919 | xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) + | |
1920 | ((XFS_EFI_MAX_FAST_EXTENTS - 1) * | |
1921 | sizeof(xfs_extent_t))), "xfs_efi_item"); | |
1922 | if (!xfs_efi_zone) | |
1923 | goto out_destroy_efd_zone; | |
1924 | ||
1925 | xfs_inode_zone = | |
1926 | kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode", | |
1927 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | | |
07c8f675 | 1928 | KM_ZONE_SPREAD, xfs_inode_init_once); |
9f8868ff CH |
1929 | if (!xfs_inode_zone) |
1930 | goto out_destroy_efi_zone; | |
1931 | ||
1932 | xfs_ili_zone = | |
1933 | kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili", | |
1934 | KM_ZONE_SPREAD, NULL); | |
1935 | if (!xfs_ili_zone) | |
1936 | goto out_destroy_inode_zone; | |
1937 | ||
1938 | #ifdef CONFIG_XFS_POSIX_ACL | |
1939 | xfs_acl_zone = kmem_zone_init(sizeof(xfs_acl_t), "xfs_acl"); | |
1940 | if (!xfs_acl_zone) | |
1941 | goto out_destroy_ili_zone; | |
1942 | #endif | |
1943 | ||
1944 | return 0; | |
1945 | ||
1946 | #ifdef CONFIG_XFS_POSIX_ACL | |
1947 | out_destroy_ili_zone: | |
1948 | #endif | |
1949 | kmem_zone_destroy(xfs_ili_zone); | |
1950 | out_destroy_inode_zone: | |
1951 | kmem_zone_destroy(xfs_inode_zone); | |
1952 | out_destroy_efi_zone: | |
1953 | kmem_zone_destroy(xfs_efi_zone); | |
1954 | out_destroy_efd_zone: | |
1955 | kmem_zone_destroy(xfs_efd_zone); | |
1956 | out_destroy_buf_item_zone: | |
1957 | kmem_zone_destroy(xfs_buf_item_zone); | |
1958 | out_destroy_trans_zone: | |
1959 | kmem_zone_destroy(xfs_trans_zone); | |
1960 | out_destroy_ifork_zone: | |
1961 | kmem_zone_destroy(xfs_ifork_zone); | |
1962 | out_destroy_dabuf_zone: | |
1963 | kmem_zone_destroy(xfs_dabuf_zone); | |
1964 | out_destroy_da_state_zone: | |
1965 | kmem_zone_destroy(xfs_da_state_zone); | |
1966 | out_destroy_btree_cur_zone: | |
1967 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1968 | out_destroy_bmap_free_item_zone: | |
1969 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1970 | out_destroy_log_ticket_zone: | |
1971 | kmem_zone_destroy(xfs_log_ticket_zone); | |
1972 | out_destroy_ioend_pool: | |
1973 | mempool_destroy(xfs_ioend_pool); | |
1974 | out_destroy_ioend_zone: | |
1975 | kmem_zone_destroy(xfs_ioend_zone); | |
1976 | out_destroy_vnode_zone: | |
1977 | kmem_zone_destroy(xfs_vnode_zone); | |
1978 | out: | |
1979 | return -ENOMEM; | |
1980 | } | |
1981 | ||
1982 | STATIC void | |
1983 | xfs_destroy_zones(void) | |
1984 | { | |
1985 | #ifdef CONFIG_XFS_POSIX_ACL | |
1986 | kmem_zone_destroy(xfs_acl_zone); | |
1987 | #endif | |
1988 | kmem_zone_destroy(xfs_ili_zone); | |
1989 | kmem_zone_destroy(xfs_inode_zone); | |
1990 | kmem_zone_destroy(xfs_efi_zone); | |
1991 | kmem_zone_destroy(xfs_efd_zone); | |
1992 | kmem_zone_destroy(xfs_buf_item_zone); | |
1993 | kmem_zone_destroy(xfs_trans_zone); | |
1994 | kmem_zone_destroy(xfs_ifork_zone); | |
1995 | kmem_zone_destroy(xfs_dabuf_zone); | |
1996 | kmem_zone_destroy(xfs_da_state_zone); | |
1997 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1998 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1999 | kmem_zone_destroy(xfs_log_ticket_zone); | |
2000 | mempool_destroy(xfs_ioend_pool); | |
2001 | kmem_zone_destroy(xfs_ioend_zone); | |
2002 | kmem_zone_destroy(xfs_vnode_zone); | |
2003 | ||
2004 | } | |
1da177e4 LT |
2005 | |
2006 | STATIC int __init | |
9f8868ff | 2007 | init_xfs_fs(void) |
1da177e4 LT |
2008 | { |
2009 | int error; | |
1da177e4 LT |
2010 | static char message[] __initdata = KERN_INFO \ |
2011 | XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n"; | |
2012 | ||
2013 | printk(message); | |
2014 | ||
1da177e4 | 2015 | ktrace_init(64); |
9f8868ff CH |
2016 | vn_init(); |
2017 | xfs_dir_startup(); | |
1da177e4 | 2018 | |
8758280f | 2019 | error = xfs_init_zones(); |
9f8868ff CH |
2020 | if (error) |
2021 | goto out; | |
2022 | ||
2023 | error = xfs_alloc_trace_bufs(); | |
2024 | if (error) | |
2025 | goto out_destroy_zones; | |
2026 | ||
2027 | error = xfs_mru_cache_init(); | |
2028 | if (error) | |
2029 | goto out_free_trace_buffers; | |
2030 | ||
2031 | error = xfs_filestream_init(); | |
2032 | if (error) | |
2033 | goto out_mru_cache_uninit; | |
1da177e4 | 2034 | |
ce8e922c | 2035 | error = xfs_buf_init(); |
9f8868ff CH |
2036 | if (error) |
2037 | goto out_filestream_uninit; | |
2038 | ||
2039 | error = xfs_init_procfs(); | |
2040 | if (error) | |
2041 | goto out_buf_terminate; | |
2042 | ||
2043 | error = xfs_sysctl_register(); | |
2044 | if (error) | |
2045 | goto out_cleanup_procfs; | |
1da177e4 | 2046 | |
1da177e4 LT |
2047 | vfs_initquota(); |
2048 | ||
2049 | error = register_filesystem(&xfs_fs_type); | |
2050 | if (error) | |
9f8868ff | 2051 | goto out_sysctl_unregister; |
1da177e4 LT |
2052 | return 0; |
2053 | ||
9f8868ff CH |
2054 | out_sysctl_unregister: |
2055 | xfs_sysctl_unregister(); | |
2056 | out_cleanup_procfs: | |
2057 | xfs_cleanup_procfs(); | |
2058 | out_buf_terminate: | |
ce8e922c | 2059 | xfs_buf_terminate(); |
9f8868ff CH |
2060 | out_filestream_uninit: |
2061 | xfs_filestream_uninit(); | |
2062 | out_mru_cache_uninit: | |
2063 | xfs_mru_cache_uninit(); | |
2064 | out_free_trace_buffers: | |
2065 | xfs_free_trace_bufs(); | |
2066 | out_destroy_zones: | |
8758280f | 2067 | xfs_destroy_zones(); |
9f8868ff | 2068 | out: |
1da177e4 LT |
2069 | return error; |
2070 | } | |
2071 | ||
2072 | STATIC void __exit | |
9f8868ff | 2073 | exit_xfs_fs(void) |
1da177e4 LT |
2074 | { |
2075 | vfs_exitquota(); | |
1da177e4 | 2076 | unregister_filesystem(&xfs_fs_type); |
9f8868ff CH |
2077 | xfs_sysctl_unregister(); |
2078 | xfs_cleanup_procfs(); | |
ce8e922c | 2079 | xfs_buf_terminate(); |
9f8868ff CH |
2080 | xfs_filestream_uninit(); |
2081 | xfs_mru_cache_uninit(); | |
2082 | xfs_free_trace_bufs(); | |
8758280f | 2083 | xfs_destroy_zones(); |
1da177e4 LT |
2084 | ktrace_uninit(); |
2085 | } | |
2086 | ||
2087 | module_init(init_xfs_fs); | |
2088 | module_exit(exit_xfs_fs); | |
2089 | ||
2090 | MODULE_AUTHOR("Silicon Graphics, Inc."); | |
2091 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); | |
2092 | MODULE_LICENSE("GPL"); |