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 | */ |
0b1b213f | 18 | |
1da177e4 | 19 | #include "xfs.h" |
6ca1c906 | 20 | #include "xfs_format.h" |
70a9883c | 21 | #include "xfs_shared.h" |
1da177e4 | 22 | #include "xfs_log.h" |
a844f451 | 23 | #include "xfs_inum.h" |
1da177e4 LT |
24 | #include "xfs_trans.h" |
25 | #include "xfs_sb.h" | |
a844f451 | 26 | #include "xfs_ag.h" |
1da177e4 | 27 | #include "xfs_alloc.h" |
1da177e4 LT |
28 | #include "xfs_quota.h" |
29 | #include "xfs_mount.h" | |
57062787 | 30 | #include "xfs_da_format.h" |
1da177e4 | 31 | #include "xfs_bmap_btree.h" |
a844f451 | 32 | #include "xfs_alloc_btree.h" |
1da177e4 | 33 | #include "xfs_ialloc_btree.h" |
1da177e4 LT |
34 | #include "xfs_dinode.h" |
35 | #include "xfs_inode.h" | |
a844f451 NS |
36 | #include "xfs_btree.h" |
37 | #include "xfs_ialloc.h" | |
1da177e4 | 38 | #include "xfs_bmap.h" |
1da177e4 LT |
39 | #include "xfs_rtalloc.h" |
40 | #include "xfs_error.h" | |
41 | #include "xfs_itable.h" | |
9909c4aa | 42 | #include "xfs_fsops.h" |
1da177e4 LT |
43 | #include "xfs_attr.h" |
44 | #include "xfs_buf_item.h" | |
a67d7c5f | 45 | #include "xfs_log_priv.h" |
249a8c11 | 46 | #include "xfs_trans_priv.h" |
48b62a1a | 47 | #include "xfs_filestream.h" |
9f8868ff | 48 | #include "xfs_da_btree.h" |
2b9ab5ab | 49 | #include "xfs_dir2.h" |
9f8868ff CH |
50 | #include "xfs_extfree_item.h" |
51 | #include "xfs_mru_cache.h" | |
52 | #include "xfs_inode_item.h" | |
6d8b79cf | 53 | #include "xfs_icache.h" |
0b1b213f | 54 | #include "xfs_trace.h" |
3ebe7d2d | 55 | #include "xfs_icreate_item.h" |
1da177e4 LT |
56 | |
57 | #include <linux/namei.h> | |
58 | #include <linux/init.h> | |
5a0e3ad6 | 59 | #include <linux/slab.h> |
1da177e4 | 60 | #include <linux/mount.h> |
0829c360 | 61 | #include <linux/mempool.h> |
1da177e4 | 62 | #include <linux/writeback.h> |
4df08c52 | 63 | #include <linux/kthread.h> |
7dfb7103 | 64 | #include <linux/freezer.h> |
62a877e3 | 65 | #include <linux/parser.h> |
1da177e4 | 66 | |
b87221de | 67 | static const struct super_operations xfs_super_operations; |
7989cb8e | 68 | static kmem_zone_t *xfs_ioend_zone; |
0829c360 | 69 | mempool_t *xfs_ioend_pool; |
1da177e4 | 70 | |
a67d7c5f DC |
71 | #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ |
72 | #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ | |
73 | #define MNTOPT_LOGDEV "logdev" /* log device */ | |
74 | #define MNTOPT_RTDEV "rtdev" /* realtime I/O device */ | |
75 | #define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */ | |
76 | #define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */ | |
a67d7c5f DC |
77 | #define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */ |
78 | #define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */ | |
79 | #define MNTOPT_SUNIT "sunit" /* data volume stripe unit */ | |
80 | #define MNTOPT_SWIDTH "swidth" /* data volume stripe width */ | |
81 | #define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */ | |
82 | #define MNTOPT_MTPT "mtpt" /* filesystem mount point */ | |
83 | #define MNTOPT_GRPID "grpid" /* group-ID from parent directory */ | |
84 | #define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */ | |
85 | #define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */ | |
86 | #define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */ | |
87 | #define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */ | |
88 | #define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */ | |
89 | #define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and | |
90 | * unwritten extent conversion */ | |
91 | #define MNTOPT_NOBARRIER "nobarrier" /* .. disable */ | |
a67d7c5f | 92 | #define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */ |
08bf5404 CM |
93 | #define MNTOPT_32BITINODE "inode32" /* inode allocation limited to |
94 | * XFS_MAXINUMBER_32 */ | |
a67d7c5f DC |
95 | #define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */ |
96 | #define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */ | |
97 | #define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */ | |
98 | #define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes | |
99 | * in stat(). */ | |
100 | #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ | |
101 | #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ | |
102 | #define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */ | |
103 | #define MNTOPT_QUOTA "quota" /* disk quotas (user) */ | |
104 | #define MNTOPT_NOQUOTA "noquota" /* no quotas */ | |
105 | #define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */ | |
106 | #define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */ | |
107 | #define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */ | |
108 | #define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */ | |
109 | #define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */ | |
110 | #define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */ | |
111 | #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */ | |
112 | #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */ | |
113 | #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */ | |
114 | #define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */ | |
e84661aa CH |
115 | #define MNTOPT_DELAYLOG "delaylog" /* Delayed logging enabled */ |
116 | #define MNTOPT_NODELAYLOG "nodelaylog" /* Delayed logging disabled */ | |
117 | #define MNTOPT_DISCARD "discard" /* Discard unused blocks */ | |
118 | #define MNTOPT_NODISCARD "nodiscard" /* Do not discard unused blocks */ | |
a67d7c5f | 119 | |
62a877e3 CH |
120 | /* |
121 | * Table driven mount option parser. | |
122 | * | |
123 | * Currently only used for remount, but it will be used for mount | |
124 | * in the future, too. | |
125 | */ | |
126 | enum { | |
2ea03929 CM |
127 | Opt_barrier, |
128 | Opt_nobarrier, | |
129 | Opt_inode64, | |
130 | Opt_inode32, | |
131 | Opt_err | |
62a877e3 CH |
132 | }; |
133 | ||
a447c093 | 134 | static const match_table_t tokens = { |
62a877e3 CH |
135 | {Opt_barrier, "barrier"}, |
136 | {Opt_nobarrier, "nobarrier"}, | |
c3a58fec | 137 | {Opt_inode64, "inode64"}, |
2ea03929 | 138 | {Opt_inode32, "inode32"}, |
62a877e3 CH |
139 | {Opt_err, NULL} |
140 | }; | |
141 | ||
142 | ||
a67d7c5f | 143 | STATIC unsigned long |
a17164e5 | 144 | suffix_kstrtoint(char *s, unsigned int base, int *res) |
a67d7c5f | 145 | { |
a17164e5 | 146 | int last, shift_left_factor = 0, _res; |
a67d7c5f DC |
147 | char *value = s; |
148 | ||
149 | last = strlen(value) - 1; | |
150 | if (value[last] == 'K' || value[last] == 'k') { | |
151 | shift_left_factor = 10; | |
152 | value[last] = '\0'; | |
153 | } | |
154 | if (value[last] == 'M' || value[last] == 'm') { | |
155 | shift_left_factor = 20; | |
156 | value[last] = '\0'; | |
157 | } | |
158 | if (value[last] == 'G' || value[last] == 'g') { | |
159 | shift_left_factor = 30; | |
160 | value[last] = '\0'; | |
161 | } | |
162 | ||
a17164e5 AP |
163 | if (kstrtoint(s, base, &_res)) |
164 | return -EINVAL; | |
165 | *res = _res << shift_left_factor; | |
166 | return 0; | |
a67d7c5f DC |
167 | } |
168 | ||
9d565ffa CH |
169 | /* |
170 | * This function fills in xfs_mount_t fields based on mount args. | |
171 | * Note: the superblock has _not_ yet been read in. | |
172 | * | |
173 | * Note that this function leaks the various device name allocations on | |
174 | * failure. The caller takes care of them. | |
175 | */ | |
a67d7c5f DC |
176 | STATIC int |
177 | xfs_parseargs( | |
178 | struct xfs_mount *mp, | |
288699fe | 179 | char *options) |
a67d7c5f | 180 | { |
9d565ffa | 181 | struct super_block *sb = mp->m_super; |
a17164e5 | 182 | char *this_char, *value; |
9d565ffa CH |
183 | int dsunit = 0; |
184 | int dswidth = 0; | |
185 | int iosize = 0; | |
a5687787 | 186 | __uint8_t iosizelog = 0; |
9d565ffa | 187 | |
4f10700a DC |
188 | /* |
189 | * set up the mount name first so all the errors will refer to the | |
190 | * correct device. | |
191 | */ | |
192 | mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL); | |
193 | if (!mp->m_fsname) | |
194 | return ENOMEM; | |
195 | mp->m_fsname_len = strlen(mp->m_fsname) + 1; | |
196 | ||
9d565ffa CH |
197 | /* |
198 | * Copy binary VFS mount flags we are interested in. | |
199 | */ | |
200 | if (sb->s_flags & MS_RDONLY) | |
201 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
202 | if (sb->s_flags & MS_DIRSYNC) | |
203 | mp->m_flags |= XFS_MOUNT_DIRSYNC; | |
204 | if (sb->s_flags & MS_SYNCHRONOUS) | |
205 | mp->m_flags |= XFS_MOUNT_WSYNC; | |
206 | ||
207 | /* | |
208 | * Set some default flags that could be cleared by the mount option | |
209 | * parsing. | |
210 | */ | |
211 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
212 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; | |
08bf5404 | 213 | #if !XFS_BIG_INUMS |
9d565ffa | 214 | mp->m_flags |= XFS_MOUNT_SMALL_INUMS; |
08bf5404 | 215 | #endif |
a67d7c5f | 216 | |
9d565ffa CH |
217 | /* |
218 | * These can be overridden by the mount option parsing. | |
219 | */ | |
220 | mp->m_logbufs = -1; | |
221 | mp->m_logbsize = -1; | |
a67d7c5f DC |
222 | |
223 | if (!options) | |
224 | goto done; | |
225 | ||
a67d7c5f DC |
226 | while ((this_char = strsep(&options, ",")) != NULL) { |
227 | if (!*this_char) | |
228 | continue; | |
229 | if ((value = strchr(this_char, '=')) != NULL) | |
230 | *value++ = 0; | |
231 | ||
232 | if (!strcmp(this_char, MNTOPT_LOGBUFS)) { | |
233 | if (!value || !*value) { | |
4f10700a | 234 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
235 | this_char); |
236 | return EINVAL; | |
237 | } | |
a17164e5 AP |
238 | if (kstrtoint(value, 10, &mp->m_logbufs)) |
239 | return EINVAL; | |
a67d7c5f DC |
240 | } else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) { |
241 | if (!value || !*value) { | |
4f10700a | 242 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
243 | this_char); |
244 | return EINVAL; | |
245 | } | |
a17164e5 AP |
246 | if (suffix_kstrtoint(value, 10, &mp->m_logbsize)) |
247 | return EINVAL; | |
a67d7c5f DC |
248 | } else if (!strcmp(this_char, MNTOPT_LOGDEV)) { |
249 | if (!value || !*value) { | |
4f10700a | 250 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
251 | this_char); |
252 | return EINVAL; | |
253 | } | |
9d565ffa CH |
254 | mp->m_logname = kstrndup(value, MAXNAMELEN, GFP_KERNEL); |
255 | if (!mp->m_logname) | |
256 | return ENOMEM; | |
a67d7c5f | 257 | } else if (!strcmp(this_char, MNTOPT_MTPT)) { |
4f10700a | 258 | xfs_warn(mp, "%s option not allowed on this system", |
288699fe CH |
259 | this_char); |
260 | return EINVAL; | |
a67d7c5f DC |
261 | } else if (!strcmp(this_char, MNTOPT_RTDEV)) { |
262 | if (!value || !*value) { | |
4f10700a | 263 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
264 | this_char); |
265 | return EINVAL; | |
266 | } | |
9d565ffa CH |
267 | mp->m_rtname = kstrndup(value, MAXNAMELEN, GFP_KERNEL); |
268 | if (!mp->m_rtname) | |
269 | return ENOMEM; | |
a67d7c5f DC |
270 | } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) { |
271 | if (!value || !*value) { | |
4f10700a | 272 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
273 | this_char); |
274 | return EINVAL; | |
275 | } | |
a17164e5 AP |
276 | if (kstrtoint(value, 10, &iosize)) |
277 | return EINVAL; | |
1ec7944b | 278 | iosizelog = ffs(iosize) - 1; |
a67d7c5f DC |
279 | } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) { |
280 | if (!value || !*value) { | |
4f10700a | 281 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
282 | this_char); |
283 | return EINVAL; | |
284 | } | |
a17164e5 AP |
285 | if (suffix_kstrtoint(value, 10, &iosize)) |
286 | return EINVAL; | |
9d565ffa | 287 | iosizelog = ffs(iosize) - 1; |
a67d7c5f DC |
288 | } else if (!strcmp(this_char, MNTOPT_GRPID) || |
289 | !strcmp(this_char, MNTOPT_BSDGROUPS)) { | |
290 | mp->m_flags |= XFS_MOUNT_GRPID; | |
291 | } else if (!strcmp(this_char, MNTOPT_NOGRPID) || | |
292 | !strcmp(this_char, MNTOPT_SYSVGROUPS)) { | |
293 | mp->m_flags &= ~XFS_MOUNT_GRPID; | |
294 | } else if (!strcmp(this_char, MNTOPT_WSYNC)) { | |
9d565ffa | 295 | mp->m_flags |= XFS_MOUNT_WSYNC; |
a67d7c5f | 296 | } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) { |
9d565ffa | 297 | mp->m_flags |= XFS_MOUNT_NORECOVERY; |
a67d7c5f | 298 | } else if (!strcmp(this_char, MNTOPT_NOALIGN)) { |
9d565ffa | 299 | mp->m_flags |= XFS_MOUNT_NOALIGN; |
a67d7c5f | 300 | } else if (!strcmp(this_char, MNTOPT_SWALLOC)) { |
9d565ffa | 301 | mp->m_flags |= XFS_MOUNT_SWALLOC; |
a67d7c5f DC |
302 | } else if (!strcmp(this_char, MNTOPT_SUNIT)) { |
303 | if (!value || !*value) { | |
4f10700a | 304 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
305 | this_char); |
306 | return EINVAL; | |
307 | } | |
a17164e5 AP |
308 | if (kstrtoint(value, 10, &dsunit)) |
309 | return EINVAL; | |
a67d7c5f DC |
310 | } else if (!strcmp(this_char, MNTOPT_SWIDTH)) { |
311 | if (!value || !*value) { | |
4f10700a | 312 | xfs_warn(mp, "%s option requires an argument", |
a67d7c5f DC |
313 | this_char); |
314 | return EINVAL; | |
315 | } | |
a17164e5 AP |
316 | if (kstrtoint(value, 10, &dswidth)) |
317 | return EINVAL; | |
08bf5404 CM |
318 | } else if (!strcmp(this_char, MNTOPT_32BITINODE)) { |
319 | mp->m_flags |= XFS_MOUNT_SMALL_INUMS; | |
a67d7c5f | 320 | } else if (!strcmp(this_char, MNTOPT_64BITINODE)) { |
9d565ffa | 321 | mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS; |
a67d7c5f | 322 | #if !XFS_BIG_INUMS |
4f10700a | 323 | xfs_warn(mp, "%s option not allowed on this system", |
a67d7c5f DC |
324 | this_char); |
325 | return EINVAL; | |
326 | #endif | |
327 | } else if (!strcmp(this_char, MNTOPT_NOUUID)) { | |
9d565ffa | 328 | mp->m_flags |= XFS_MOUNT_NOUUID; |
a67d7c5f | 329 | } else if (!strcmp(this_char, MNTOPT_BARRIER)) { |
9d565ffa | 330 | mp->m_flags |= XFS_MOUNT_BARRIER; |
a67d7c5f | 331 | } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { |
9d565ffa | 332 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
a67d7c5f | 333 | } else if (!strcmp(this_char, MNTOPT_IKEEP)) { |
9d565ffa | 334 | mp->m_flags |= XFS_MOUNT_IKEEP; |
a67d7c5f | 335 | } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { |
9d565ffa | 336 | mp->m_flags &= ~XFS_MOUNT_IKEEP; |
a67d7c5f | 337 | } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { |
9d565ffa | 338 | mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE; |
a67d7c5f | 339 | } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { |
9d565ffa | 340 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; |
a67d7c5f | 341 | } else if (!strcmp(this_char, MNTOPT_ATTR2)) { |
9d565ffa | 342 | mp->m_flags |= XFS_MOUNT_ATTR2; |
a67d7c5f | 343 | } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { |
9d565ffa CH |
344 | mp->m_flags &= ~XFS_MOUNT_ATTR2; |
345 | mp->m_flags |= XFS_MOUNT_NOATTR2; | |
a67d7c5f | 346 | } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) { |
9d565ffa | 347 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; |
a67d7c5f | 348 | } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) { |
4177af3a CS |
349 | mp->m_qflags &= ~XFS_ALL_QUOTA_ACCT; |
350 | mp->m_qflags &= ~XFS_ALL_QUOTA_ENFD; | |
351 | mp->m_qflags &= ~XFS_ALL_QUOTA_ACTIVE; | |
a67d7c5f DC |
352 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || |
353 | !strcmp(this_char, MNTOPT_UQUOTA) || | |
354 | !strcmp(this_char, MNTOPT_USRQUOTA)) { | |
9d565ffa CH |
355 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE | |
356 | XFS_UQUOTA_ENFD); | |
a67d7c5f DC |
357 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || |
358 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { | |
9d565ffa CH |
359 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); |
360 | mp->m_qflags &= ~XFS_UQUOTA_ENFD; | |
a67d7c5f DC |
361 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || |
362 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { | |
9d565ffa | 363 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE | |
83e782e1 | 364 | XFS_PQUOTA_ENFD); |
a67d7c5f | 365 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { |
9d565ffa | 366 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); |
83e782e1 | 367 | mp->m_qflags &= ~XFS_PQUOTA_ENFD; |
a67d7c5f DC |
368 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || |
369 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { | |
9d565ffa | 370 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE | |
83e782e1 | 371 | XFS_GQUOTA_ENFD); |
a67d7c5f | 372 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { |
9d565ffa | 373 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); |
83e782e1 | 374 | mp->m_qflags &= ~XFS_GQUOTA_ENFD; |
71e330b5 | 375 | } else if (!strcmp(this_char, MNTOPT_DELAYLOG)) { |
93b8a585 CH |
376 | xfs_warn(mp, |
377 | "delaylog is the default now, option is deprecated."); | |
71e330b5 | 378 | } else if (!strcmp(this_char, MNTOPT_NODELAYLOG)) { |
242d6219 | 379 | xfs_warn(mp, |
93b8a585 | 380 | "nodelaylog support has been removed, option is deprecated."); |
e84661aa CH |
381 | } else if (!strcmp(this_char, MNTOPT_DISCARD)) { |
382 | mp->m_flags |= XFS_MOUNT_DISCARD; | |
383 | } else if (!strcmp(this_char, MNTOPT_NODISCARD)) { | |
384 | mp->m_flags &= ~XFS_MOUNT_DISCARD; | |
a67d7c5f | 385 | } else if (!strcmp(this_char, "ihashsize")) { |
4f10700a DC |
386 | xfs_warn(mp, |
387 | "ihashsize no longer used, option is deprecated."); | |
a67d7c5f | 388 | } else if (!strcmp(this_char, "osyncisdsync")) { |
4f10700a DC |
389 | xfs_warn(mp, |
390 | "osyncisdsync has no effect, option is deprecated."); | |
a64afb05 | 391 | } else if (!strcmp(this_char, "osyncisosync")) { |
4f10700a DC |
392 | xfs_warn(mp, |
393 | "osyncisosync has no effect, option is deprecated."); | |
a67d7c5f | 394 | } else if (!strcmp(this_char, "irixsgid")) { |
4f10700a DC |
395 | xfs_warn(mp, |
396 | "irixsgid is now a sysctl(2) variable, option is deprecated."); | |
a67d7c5f | 397 | } else { |
4f10700a | 398 | xfs_warn(mp, "unknown mount option [%s].", this_char); |
a67d7c5f DC |
399 | return EINVAL; |
400 | } | |
401 | } | |
402 | ||
9d565ffa CH |
403 | /* |
404 | * no recovery flag requires a read-only mount | |
405 | */ | |
406 | if ((mp->m_flags & XFS_MOUNT_NORECOVERY) && | |
407 | !(mp->m_flags & XFS_MOUNT_RDONLY)) { | |
4f10700a | 408 | xfs_warn(mp, "no-recovery mounts must be read-only."); |
9d565ffa | 409 | return EINVAL; |
a67d7c5f DC |
410 | } |
411 | ||
9d565ffa | 412 | if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) { |
4f10700a DC |
413 | xfs_warn(mp, |
414 | "sunit and swidth options incompatible with the noalign option"); | |
a67d7c5f DC |
415 | return EINVAL; |
416 | } | |
417 | ||
7d095257 CH |
418 | #ifndef CONFIG_XFS_QUOTA |
419 | if (XFS_IS_QUOTA_RUNNING(mp)) { | |
4f10700a | 420 | xfs_warn(mp, "quota support not available in this kernel."); |
7d095257 CH |
421 | return EINVAL; |
422 | } | |
423 | #endif | |
424 | ||
a67d7c5f | 425 | if ((dsunit && !dswidth) || (!dsunit && dswidth)) { |
4f10700a | 426 | xfs_warn(mp, "sunit and swidth must be specified together"); |
a67d7c5f DC |
427 | return EINVAL; |
428 | } | |
429 | ||
430 | if (dsunit && (dswidth % dsunit != 0)) { | |
4f10700a DC |
431 | xfs_warn(mp, |
432 | "stripe width (%d) must be a multiple of the stripe unit (%d)", | |
a67d7c5f DC |
433 | dswidth, dsunit); |
434 | return EINVAL; | |
435 | } | |
436 | ||
9d565ffa | 437 | done: |
39a45d84 | 438 | if (dsunit && !(mp->m_flags & XFS_MOUNT_NOALIGN)) { |
9d565ffa CH |
439 | /* |
440 | * At this point the superblock has not been read | |
441 | * in, therefore we do not know the block size. | |
442 | * Before the mount call ends we will convert | |
443 | * these to FSBs. | |
444 | */ | |
39a45d84 JL |
445 | mp->m_dalign = dsunit; |
446 | mp->m_swidth = dswidth; | |
9d565ffa CH |
447 | } |
448 | ||
449 | if (mp->m_logbufs != -1 && | |
450 | mp->m_logbufs != 0 && | |
451 | (mp->m_logbufs < XLOG_MIN_ICLOGS || | |
452 | mp->m_logbufs > XLOG_MAX_ICLOGS)) { | |
4f10700a | 453 | xfs_warn(mp, "invalid logbufs value: %d [not %d-%d]", |
9d565ffa CH |
454 | mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); |
455 | return XFS_ERROR(EINVAL); | |
456 | } | |
457 | if (mp->m_logbsize != -1 && | |
458 | mp->m_logbsize != 0 && | |
459 | (mp->m_logbsize < XLOG_MIN_RECORD_BSIZE || | |
460 | mp->m_logbsize > XLOG_MAX_RECORD_BSIZE || | |
461 | !is_power_of_2(mp->m_logbsize))) { | |
4f10700a DC |
462 | xfs_warn(mp, |
463 | "invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | |
9d565ffa CH |
464 | mp->m_logbsize); |
465 | return XFS_ERROR(EINVAL); | |
466 | } | |
467 | ||
9d565ffa CH |
468 | if (iosizelog) { |
469 | if (iosizelog > XFS_MAX_IO_LOG || | |
470 | iosizelog < XFS_MIN_IO_LOG) { | |
4f10700a | 471 | xfs_warn(mp, "invalid log iosize: %d [not %d-%d]", |
9d565ffa CH |
472 | iosizelog, XFS_MIN_IO_LOG, |
473 | XFS_MAX_IO_LOG); | |
474 | return XFS_ERROR(EINVAL); | |
475 | } | |
476 | ||
477 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | |
478 | mp->m_readio_log = iosizelog; | |
479 | mp->m_writeio_log = iosizelog; | |
a67d7c5f DC |
480 | } |
481 | ||
a67d7c5f DC |
482 | return 0; |
483 | } | |
484 | ||
485 | struct proc_xfs_info { | |
486 | int flag; | |
487 | char *str; | |
488 | }; | |
489 | ||
490 | STATIC int | |
491 | xfs_showargs( | |
492 | struct xfs_mount *mp, | |
493 | struct seq_file *m) | |
494 | { | |
495 | static struct proc_xfs_info xfs_info_set[] = { | |
496 | /* the few simple ones we can get from the mount struct */ | |
1bd960ee | 497 | { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, |
a67d7c5f | 498 | { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, |
a67d7c5f DC |
499 | { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, |
500 | { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC }, | |
501 | { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, | |
502 | { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, | |
a67d7c5f DC |
503 | { XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 }, |
504 | { XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM }, | |
a67d7c5f | 505 | { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, |
e84661aa | 506 | { XFS_MOUNT_DISCARD, "," MNTOPT_DISCARD }, |
08bf5404 | 507 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_32BITINODE }, |
a67d7c5f DC |
508 | { 0, NULL } |
509 | }; | |
510 | static struct proc_xfs_info xfs_info_unset[] = { | |
511 | /* the few simple ones we can get from the mount struct */ | |
a67d7c5f DC |
512 | { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, |
513 | { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, | |
514 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, | |
515 | { 0, NULL } | |
516 | }; | |
517 | struct proc_xfs_info *xfs_infop; | |
518 | ||
519 | for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) { | |
520 | if (mp->m_flags & xfs_infop->flag) | |
521 | seq_puts(m, xfs_infop->str); | |
522 | } | |
523 | for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) { | |
524 | if (!(mp->m_flags & xfs_infop->flag)) | |
525 | seq_puts(m, xfs_infop->str); | |
526 | } | |
527 | ||
528 | if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) | |
529 | seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk", | |
530 | (int)(1 << mp->m_writeio_log) >> 10); | |
531 | ||
532 | if (mp->m_logbufs > 0) | |
533 | seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs); | |
534 | if (mp->m_logbsize > 0) | |
535 | seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10); | |
536 | ||
537 | if (mp->m_logname) | |
538 | seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname); | |
539 | if (mp->m_rtname) | |
540 | seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname); | |
541 | ||
542 | if (mp->m_dalign > 0) | |
543 | seq_printf(m, "," MNTOPT_SUNIT "=%d", | |
544 | (int)XFS_FSB_TO_BB(mp, mp->m_dalign)); | |
545 | if (mp->m_swidth > 0) | |
546 | seq_printf(m, "," MNTOPT_SWIDTH "=%d", | |
547 | (int)XFS_FSB_TO_BB(mp, mp->m_swidth)); | |
548 | ||
549 | if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD)) | |
550 | seq_puts(m, "," MNTOPT_USRQUOTA); | |
551 | else if (mp->m_qflags & XFS_UQUOTA_ACCT) | |
552 | seq_puts(m, "," MNTOPT_UQUOTANOENF); | |
553 | ||
988abe40 | 554 | if (mp->m_qflags & XFS_PQUOTA_ACCT) { |
83e782e1 | 555 | if (mp->m_qflags & XFS_PQUOTA_ENFD) |
988abe40 AE |
556 | seq_puts(m, "," MNTOPT_PRJQUOTA); |
557 | else | |
558 | seq_puts(m, "," MNTOPT_PQUOTANOENF); | |
d892d586 CS |
559 | } |
560 | if (mp->m_qflags & XFS_GQUOTA_ACCT) { | |
83e782e1 | 561 | if (mp->m_qflags & XFS_GQUOTA_ENFD) |
988abe40 AE |
562 | seq_puts(m, "," MNTOPT_GRPQUOTA); |
563 | else | |
564 | seq_puts(m, "," MNTOPT_GQUOTANOENF); | |
565 | } | |
a67d7c5f DC |
566 | |
567 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) | |
568 | seq_puts(m, "," MNTOPT_NOQUOTA); | |
569 | ||
570 | return 0; | |
571 | } | |
1da177e4 LT |
572 | __uint64_t |
573 | xfs_max_file_offset( | |
574 | unsigned int blockshift) | |
575 | { | |
576 | unsigned int pagefactor = 1; | |
577 | unsigned int bitshift = BITS_PER_LONG - 1; | |
578 | ||
579 | /* Figure out maximum filesize, on Linux this can depend on | |
580 | * the filesystem blocksize (on 32 bit platforms). | |
ebdec241 | 581 | * __block_write_begin does this in an [unsigned] long... |
1da177e4 LT |
582 | * page->index << (PAGE_CACHE_SHIFT - bbits) |
583 | * So, for page sized blocks (4K on 32 bit platforms), | |
584 | * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is | |
585 | * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) | |
586 | * but for smaller blocksizes it is less (bbits = log2 bsize). | |
587 | * Note1: get_block_t takes a long (implicit cast from above) | |
588 | * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch | |
589 | * can optionally convert the [unsigned] long from above into | |
590 | * an [unsigned] long long. | |
591 | */ | |
592 | ||
593 | #if BITS_PER_LONG == 32 | |
90c699a9 | 594 | # if defined(CONFIG_LBDAF) |
1da177e4 LT |
595 | ASSERT(sizeof(sector_t) == 8); |
596 | pagefactor = PAGE_CACHE_SIZE; | |
597 | bitshift = BITS_PER_LONG; | |
598 | # else | |
599 | pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift); | |
600 | # endif | |
601 | #endif | |
602 | ||
603 | return (((__uint64_t)pagefactor) << bitshift) - 1; | |
604 | } | |
605 | ||
2d2194f6 CM |
606 | xfs_agnumber_t |
607 | xfs_set_inode32(struct xfs_mount *mp) | |
608 | { | |
609 | xfs_agnumber_t index = 0; | |
4056c1d0 | 610 | xfs_agnumber_t maxagi = 0; |
2d2194f6 CM |
611 | xfs_sb_t *sbp = &mp->m_sb; |
612 | xfs_agnumber_t max_metadata; | |
613 | xfs_agino_t agino = XFS_OFFBNO_TO_AGINO(mp, sbp->sb_agblocks -1, 0); | |
614 | xfs_ino_t ino = XFS_AGINO_TO_INO(mp, sbp->sb_agcount -1, agino); | |
615 | xfs_perag_t *pag; | |
616 | ||
617 | /* Calculate how much should be reserved for inodes to meet | |
618 | * the max inode percentage. | |
619 | */ | |
620 | if (mp->m_maxicount) { | |
621 | __uint64_t icount; | |
622 | ||
623 | icount = sbp->sb_dblocks * sbp->sb_imax_pct; | |
624 | do_div(icount, 100); | |
625 | icount += sbp->sb_agblocks - 1; | |
626 | do_div(icount, sbp->sb_agblocks); | |
627 | max_metadata = icount; | |
628 | } else { | |
629 | max_metadata = sbp->sb_agcount; | |
630 | } | |
631 | ||
632 | for (index = 0; index < sbp->sb_agcount; index++) { | |
633 | ino = XFS_AGINO_TO_INO(mp, index, agino); | |
4056c1d0 | 634 | |
2d2194f6 | 635 | if (ino > XFS_MAXINUMBER_32) { |
4056c1d0 CM |
636 | pag = xfs_perag_get(mp, index); |
637 | pag->pagi_inodeok = 0; | |
638 | pag->pagf_metadata = 0; | |
639 | xfs_perag_put(pag); | |
640 | continue; | |
2d2194f6 CM |
641 | } |
642 | ||
643 | pag = xfs_perag_get(mp, index); | |
644 | pag->pagi_inodeok = 1; | |
4056c1d0 | 645 | maxagi++; |
2d2194f6 CM |
646 | if (index < max_metadata) |
647 | pag->pagf_metadata = 1; | |
648 | xfs_perag_put(pag); | |
649 | } | |
4056c1d0 CM |
650 | mp->m_flags |= (XFS_MOUNT_32BITINODES | |
651 | XFS_MOUNT_SMALL_INUMS); | |
652 | ||
653 | return maxagi; | |
2d2194f6 CM |
654 | } |
655 | ||
656 | xfs_agnumber_t | |
657 | xfs_set_inode64(struct xfs_mount *mp) | |
658 | { | |
659 | xfs_agnumber_t index = 0; | |
660 | ||
661 | for (index = 0; index < mp->m_sb.sb_agcount; index++) { | |
662 | struct xfs_perag *pag; | |
663 | ||
664 | pag = xfs_perag_get(mp, index); | |
665 | pag->pagi_inodeok = 1; | |
666 | pag->pagf_metadata = 0; | |
667 | xfs_perag_put(pag); | |
668 | } | |
669 | ||
670 | /* There is no need for lock protection on m_flags, | |
671 | * the rw_semaphore of the VFS superblock is locked | |
672 | * during mount/umount/remount operations, so this is | |
673 | * enough to avoid concurency on the m_flags field | |
674 | */ | |
675 | mp->m_flags &= ~(XFS_MOUNT_32BITINODES | | |
676 | XFS_MOUNT_SMALL_INUMS); | |
677 | return index; | |
678 | } | |
679 | ||
3180e66d | 680 | STATIC int |
1da177e4 LT |
681 | xfs_blkdev_get( |
682 | xfs_mount_t *mp, | |
683 | const char *name, | |
684 | struct block_device **bdevp) | |
685 | { | |
686 | int error = 0; | |
687 | ||
d4d77629 TH |
688 | *bdevp = blkdev_get_by_path(name, FMODE_READ|FMODE_WRITE|FMODE_EXCL, |
689 | mp); | |
1da177e4 LT |
690 | if (IS_ERR(*bdevp)) { |
691 | error = PTR_ERR(*bdevp); | |
4f10700a | 692 | xfs_warn(mp, "Invalid device [%s], error=%d\n", name, error); |
1da177e4 LT |
693 | } |
694 | ||
695 | return -error; | |
696 | } | |
697 | ||
3180e66d | 698 | STATIC void |
1da177e4 LT |
699 | xfs_blkdev_put( |
700 | struct block_device *bdev) | |
701 | { | |
702 | if (bdev) | |
e525fd89 | 703 | blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); |
1da177e4 LT |
704 | } |
705 | ||
f538d4da CH |
706 | void |
707 | xfs_blkdev_issue_flush( | |
708 | xfs_buftarg_t *buftarg) | |
709 | { | |
7582df51 | 710 | blkdev_issue_flush(buftarg->bt_bdev, GFP_NOFS, NULL); |
f538d4da | 711 | } |
1da177e4 | 712 | |
19f354d4 CH |
713 | STATIC void |
714 | xfs_close_devices( | |
715 | struct xfs_mount *mp) | |
716 | { | |
717 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
c032bfcf | 718 | struct block_device *logdev = mp->m_logdev_targp->bt_bdev; |
b7963133 | 719 | xfs_free_buftarg(mp, mp->m_logdev_targp); |
c032bfcf | 720 | xfs_blkdev_put(logdev); |
19f354d4 CH |
721 | } |
722 | if (mp->m_rtdev_targp) { | |
c032bfcf | 723 | struct block_device *rtdev = mp->m_rtdev_targp->bt_bdev; |
b7963133 | 724 | xfs_free_buftarg(mp, mp->m_rtdev_targp); |
c032bfcf | 725 | xfs_blkdev_put(rtdev); |
19f354d4 | 726 | } |
b7963133 | 727 | xfs_free_buftarg(mp, mp->m_ddev_targp); |
19f354d4 CH |
728 | } |
729 | ||
730 | /* | |
731 | * The file system configurations are: | |
732 | * (1) device (partition) with data and internal log | |
733 | * (2) logical volume with data and log subvolumes. | |
734 | * (3) logical volume with data, log, and realtime subvolumes. | |
735 | * | |
736 | * We only have to handle opening the log and realtime volumes here if | |
737 | * they are present. The data subvolume has already been opened by | |
738 | * get_sb_bdev() and is stored in sb->s_bdev. | |
739 | */ | |
740 | STATIC int | |
741 | xfs_open_devices( | |
9d565ffa | 742 | struct xfs_mount *mp) |
19f354d4 CH |
743 | { |
744 | struct block_device *ddev = mp->m_super->s_bdev; | |
745 | struct block_device *logdev = NULL, *rtdev = NULL; | |
746 | int error; | |
747 | ||
748 | /* | |
749 | * Open real time and log devices - order is important. | |
750 | */ | |
9d565ffa CH |
751 | if (mp->m_logname) { |
752 | error = xfs_blkdev_get(mp, mp->m_logname, &logdev); | |
19f354d4 CH |
753 | if (error) |
754 | goto out; | |
755 | } | |
756 | ||
9d565ffa CH |
757 | if (mp->m_rtname) { |
758 | error = xfs_blkdev_get(mp, mp->m_rtname, &rtdev); | |
19f354d4 CH |
759 | if (error) |
760 | goto out_close_logdev; | |
761 | ||
762 | if (rtdev == ddev || rtdev == logdev) { | |
4f10700a DC |
763 | xfs_warn(mp, |
764 | "Cannot mount filesystem with identical rtdev and ddev/logdev."); | |
19f354d4 CH |
765 | error = EINVAL; |
766 | goto out_close_rtdev; | |
767 | } | |
768 | } | |
769 | ||
770 | /* | |
771 | * Setup xfs_mount buffer target pointers | |
772 | */ | |
773 | error = ENOMEM; | |
ebad861b | 774 | mp->m_ddev_targp = xfs_alloc_buftarg(mp, ddev, 0, mp->m_fsname); |
19f354d4 CH |
775 | if (!mp->m_ddev_targp) |
776 | goto out_close_rtdev; | |
777 | ||
778 | if (rtdev) { | |
ebad861b DC |
779 | mp->m_rtdev_targp = xfs_alloc_buftarg(mp, rtdev, 1, |
780 | mp->m_fsname); | |
19f354d4 CH |
781 | if (!mp->m_rtdev_targp) |
782 | goto out_free_ddev_targ; | |
783 | } | |
784 | ||
785 | if (logdev && logdev != ddev) { | |
ebad861b DC |
786 | mp->m_logdev_targp = xfs_alloc_buftarg(mp, logdev, 1, |
787 | mp->m_fsname); | |
19f354d4 CH |
788 | if (!mp->m_logdev_targp) |
789 | goto out_free_rtdev_targ; | |
790 | } else { | |
791 | mp->m_logdev_targp = mp->m_ddev_targp; | |
792 | } | |
793 | ||
794 | return 0; | |
795 | ||
796 | out_free_rtdev_targ: | |
797 | if (mp->m_rtdev_targp) | |
b7963133 | 798 | xfs_free_buftarg(mp, mp->m_rtdev_targp); |
19f354d4 | 799 | out_free_ddev_targ: |
b7963133 | 800 | xfs_free_buftarg(mp, mp->m_ddev_targp); |
19f354d4 CH |
801 | out_close_rtdev: |
802 | if (rtdev) | |
803 | xfs_blkdev_put(rtdev); | |
804 | out_close_logdev: | |
805 | if (logdev && logdev != ddev) | |
806 | xfs_blkdev_put(logdev); | |
807 | out: | |
808 | return error; | |
809 | } | |
810 | ||
e34b562c CH |
811 | /* |
812 | * Setup xfs_mount buffer target pointers based on superblock | |
813 | */ | |
814 | STATIC int | |
815 | xfs_setup_devices( | |
816 | struct xfs_mount *mp) | |
817 | { | |
818 | int error; | |
19f354d4 | 819 | |
e34b562c CH |
820 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
821 | mp->m_sb.sb_sectsize); | |
822 | if (error) | |
823 | return error; | |
824 | ||
825 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
826 | unsigned int log_sector_size = BBSIZE; | |
827 | ||
828 | if (xfs_sb_version_hassector(&mp->m_sb)) | |
829 | log_sector_size = mp->m_sb.sb_logsectsize; | |
830 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | |
831 | mp->m_sb.sb_blocksize, | |
832 | log_sector_size); | |
833 | if (error) | |
834 | return error; | |
835 | } | |
836 | if (mp->m_rtdev_targp) { | |
837 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | |
838 | mp->m_sb.sb_blocksize, | |
839 | mp->m_sb.sb_sectsize); | |
840 | if (error) | |
841 | return error; | |
842 | } | |
843 | ||
844 | return 0; | |
845 | } | |
19f354d4 | 846 | |
aa6bf01d CH |
847 | STATIC int |
848 | xfs_init_mount_workqueues( | |
849 | struct xfs_mount *mp) | |
850 | { | |
851 | mp->m_data_workqueue = alloc_workqueue("xfs-data/%s", | |
852 | WQ_MEM_RECLAIM, 0, mp->m_fsname); | |
853 | if (!mp->m_data_workqueue) | |
854 | goto out; | |
855 | ||
856 | mp->m_unwritten_workqueue = alloc_workqueue("xfs-conv/%s", | |
857 | WQ_MEM_RECLAIM, 0, mp->m_fsname); | |
858 | if (!mp->m_unwritten_workqueue) | |
859 | goto out_destroy_data_iodone_queue; | |
860 | ||
4c2d542f DC |
861 | mp->m_cil_workqueue = alloc_workqueue("xfs-cil/%s", |
862 | WQ_MEM_RECLAIM, 0, mp->m_fsname); | |
863 | if (!mp->m_cil_workqueue) | |
864 | goto out_destroy_unwritten; | |
5889608d DC |
865 | |
866 | mp->m_reclaim_workqueue = alloc_workqueue("xfs-reclaim/%s", | |
7a378c9a | 867 | 0, 0, mp->m_fsname); |
5889608d DC |
868 | if (!mp->m_reclaim_workqueue) |
869 | goto out_destroy_cil; | |
870 | ||
871 | mp->m_log_workqueue = alloc_workqueue("xfs-log/%s", | |
7a378c9a | 872 | 0, 0, mp->m_fsname); |
5889608d DC |
873 | if (!mp->m_log_workqueue) |
874 | goto out_destroy_reclaim; | |
875 | ||
579b62fa | 876 | mp->m_eofblocks_workqueue = alloc_workqueue("xfs-eofblocks/%s", |
7a378c9a | 877 | 0, 0, mp->m_fsname); |
579b62fa BF |
878 | if (!mp->m_eofblocks_workqueue) |
879 | goto out_destroy_log; | |
880 | ||
aa6bf01d CH |
881 | return 0; |
882 | ||
579b62fa BF |
883 | out_destroy_log: |
884 | destroy_workqueue(mp->m_log_workqueue); | |
5889608d DC |
885 | out_destroy_reclaim: |
886 | destroy_workqueue(mp->m_reclaim_workqueue); | |
887 | out_destroy_cil: | |
888 | destroy_workqueue(mp->m_cil_workqueue); | |
4c2d542f DC |
889 | out_destroy_unwritten: |
890 | destroy_workqueue(mp->m_unwritten_workqueue); | |
aa6bf01d CH |
891 | out_destroy_data_iodone_queue: |
892 | destroy_workqueue(mp->m_data_workqueue); | |
893 | out: | |
894 | return -ENOMEM; | |
895 | } | |
896 | ||
897 | STATIC void | |
898 | xfs_destroy_mount_workqueues( | |
899 | struct xfs_mount *mp) | |
900 | { | |
579b62fa | 901 | destroy_workqueue(mp->m_eofblocks_workqueue); |
5889608d DC |
902 | destroy_workqueue(mp->m_log_workqueue); |
903 | destroy_workqueue(mp->m_reclaim_workqueue); | |
4c2d542f | 904 | destroy_workqueue(mp->m_cil_workqueue); |
aa6bf01d CH |
905 | destroy_workqueue(mp->m_data_workqueue); |
906 | destroy_workqueue(mp->m_unwritten_workqueue); | |
907 | } | |
908 | ||
9aa05000 DC |
909 | /* |
910 | * Flush all dirty data to disk. Must not be called while holding an XFS_ILOCK | |
911 | * or a page lock. We use sync_inodes_sb() here to ensure we block while waiting | |
912 | * for IO to complete so that we effectively throttle multiple callers to the | |
913 | * rate at which IO is completing. | |
914 | */ | |
915 | void | |
916 | xfs_flush_inodes( | |
917 | struct xfs_mount *mp) | |
918 | { | |
919 | struct super_block *sb = mp->m_super; | |
920 | ||
921 | if (down_read_trylock(&sb->s_umount)) { | |
922 | sync_inodes_sb(sb); | |
923 | up_read(&sb->s_umount); | |
924 | } | |
925 | } | |
926 | ||
bf904248 | 927 | /* Catch misguided souls that try to use this interface on XFS */ |
1da177e4 | 928 | STATIC struct inode * |
a50cd269 | 929 | xfs_fs_alloc_inode( |
1da177e4 LT |
930 | struct super_block *sb) |
931 | { | |
bf904248 | 932 | BUG(); |
493dca61 | 933 | return NULL; |
1da177e4 LT |
934 | } |
935 | ||
bf904248 | 936 | /* |
99fa8cb3 DC |
937 | * Now that the generic code is guaranteed not to be accessing |
938 | * the linux inode, we can reclaim the inode. | |
bf904248 | 939 | */ |
1da177e4 | 940 | STATIC void |
a50cd269 | 941 | xfs_fs_destroy_inode( |
848ce8f7 | 942 | struct inode *inode) |
1da177e4 | 943 | { |
848ce8f7 CH |
944 | struct xfs_inode *ip = XFS_I(inode); |
945 | ||
cca28fb8 | 946 | trace_xfs_destroy_inode(ip); |
99fa8cb3 DC |
947 | |
948 | XFS_STATS_INC(vn_reclaim); | |
848ce8f7 | 949 | |
848ce8f7 CH |
950 | ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0); |
951 | ||
952 | /* | |
953 | * We should never get here with one of the reclaim flags already set. | |
954 | */ | |
955 | ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIMABLE)); | |
956 | ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIM)); | |
957 | ||
958 | /* | |
57817c68 DC |
959 | * We always use background reclaim here because even if the |
960 | * inode is clean, it still may be under IO and hence we have | |
961 | * to take the flush lock. The background reclaim path handles | |
962 | * this more efficiently than we can here, so simply let background | |
963 | * reclaim tear down all inodes. | |
848ce8f7 | 964 | */ |
57817c68 | 965 | xfs_inode_set_reclaim_tag(ip); |
1da177e4 LT |
966 | } |
967 | ||
07c8f675 DC |
968 | /* |
969 | * Slab object creation initialisation for the XFS inode. | |
970 | * This covers only the idempotent fields in the XFS inode; | |
971 | * all other fields need to be initialised on allocation | |
b595076a | 972 | * from the slab. This avoids the need to repeatedly initialise |
07c8f675 DC |
973 | * fields in the xfs inode that left in the initialise state |
974 | * when freeing the inode. | |
975 | */ | |
bf904248 DC |
976 | STATIC void |
977 | xfs_fs_inode_init_once( | |
07c8f675 DC |
978 | void *inode) |
979 | { | |
980 | struct xfs_inode *ip = inode; | |
981 | ||
982 | memset(ip, 0, sizeof(struct xfs_inode)); | |
bf904248 DC |
983 | |
984 | /* vfs inode */ | |
985 | inode_init_once(VFS_I(ip)); | |
986 | ||
987 | /* xfs inode */ | |
07c8f675 DC |
988 | atomic_set(&ip->i_pincount, 0); |
989 | spin_lock_init(&ip->i_flags_lock); | |
07c8f675 DC |
990 | |
991 | mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER, | |
992 | "xfsino", ip->i_ino); | |
07c8f675 DC |
993 | } |
994 | ||
1da177e4 | 995 | STATIC void |
b57922d9 | 996 | xfs_fs_evict_inode( |
1da177e4 LT |
997 | struct inode *inode) |
998 | { | |
1543d79c | 999 | xfs_inode_t *ip = XFS_I(inode); |
56d433e4 | 1000 | |
4f59af75 CH |
1001 | ASSERT(!rwsem_is_locked(&ip->i_iolock.mr_lock)); |
1002 | ||
b57922d9 | 1003 | trace_xfs_evict_inode(ip); |
cca28fb8 | 1004 | |
b57922d9 | 1005 | truncate_inode_pages(&inode->i_data, 0); |
dbd5768f | 1006 | clear_inode(inode); |
99fa8cb3 DC |
1007 | XFS_STATS_INC(vn_rele); |
1008 | XFS_STATS_INC(vn_remove); | |
1009 | XFS_STATS_DEC(vn_active); | |
1010 | ||
1011 | xfs_inactive(ip); | |
56d433e4 | 1012 | } |
1da177e4 | 1013 | |
5132ba8f DC |
1014 | /* |
1015 | * We do an unlocked check for XFS_IDONTCACHE here because we are already | |
1016 | * serialised against cache hits here via the inode->i_lock and igrab() in | |
1017 | * xfs_iget_cache_hit(). Hence a lookup that might clear this flag will not be | |
1018 | * racing with us, and it avoids needing to grab a spinlock here for every inode | |
1019 | * we drop the final reference on. | |
1020 | */ | |
1021 | STATIC int | |
1022 | xfs_fs_drop_inode( | |
1023 | struct inode *inode) | |
1024 | { | |
1025 | struct xfs_inode *ip = XFS_I(inode); | |
1026 | ||
1027 | return generic_drop_inode(inode) || (ip->i_flags & XFS_IDONTCACHE); | |
1028 | } | |
1029 | ||
a738159d CH |
1030 | STATIC void |
1031 | xfs_free_fsname( | |
1032 | struct xfs_mount *mp) | |
1033 | { | |
1034 | kfree(mp->m_fsname); | |
1035 | kfree(mp->m_rtname); | |
1036 | kfree(mp->m_logname); | |
1037 | } | |
1038 | ||
1da177e4 | 1039 | STATIC void |
a50cd269 | 1040 | xfs_fs_put_super( |
1da177e4 LT |
1041 | struct super_block *sb) |
1042 | { | |
745f6919 | 1043 | struct xfs_mount *mp = XFS_M(sb); |
1da177e4 | 1044 | |
7e18530b DC |
1045 | xfs_filestream_unmount(mp); |
1046 | xfs_unmountfs(mp); | |
1047 | ||
6203300e | 1048 | xfs_freesb(mp); |
c962fb79 | 1049 | xfs_icsb_destroy_counters(mp); |
aa6bf01d | 1050 | xfs_destroy_mount_workqueues(mp); |
19f354d4 | 1051 | xfs_close_devices(mp); |
a738159d | 1052 | xfs_free_fsname(mp); |
c962fb79 | 1053 | kfree(mp); |
1da177e4 LT |
1054 | } |
1055 | ||
1da177e4 | 1056 | STATIC int |
69961a26 | 1057 | xfs_fs_sync_fs( |
1da177e4 LT |
1058 | struct super_block *sb, |
1059 | int wait) | |
1060 | { | |
745f6919 | 1061 | struct xfs_mount *mp = XFS_M(sb); |
1da177e4 | 1062 | |
e893bffd | 1063 | /* |
34625c66 | 1064 | * Doing anything during the async pass would be counterproductive. |
e893bffd | 1065 | */ |
34625c66 | 1066 | if (!wait) |
69961a26 | 1067 | return 0; |
69961a26 | 1068 | |
34061f5c | 1069 | xfs_log_force(mp, XFS_LOG_SYNC); |
69961a26 | 1070 | if (laptop_mode) { |
1da177e4 LT |
1071 | /* |
1072 | * The disk must be active because we're syncing. | |
f661f1e0 | 1073 | * We schedule log work now (now that the disk is |
1da177e4 LT |
1074 | * active) instead of later (when it might not be). |
1075 | */ | |
f661f1e0 | 1076 | flush_delayed_work(&mp->m_log->l_work); |
1da177e4 LT |
1077 | } |
1078 | ||
69961a26 | 1079 | return 0; |
1da177e4 LT |
1080 | } |
1081 | ||
1082 | STATIC int | |
a50cd269 | 1083 | xfs_fs_statfs( |
726c3342 | 1084 | struct dentry *dentry, |
1da177e4 LT |
1085 | struct kstatfs *statp) |
1086 | { | |
4ca488eb CH |
1087 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
1088 | xfs_sb_t *sbp = &mp->m_sb; | |
7d095257 | 1089 | struct xfs_inode *ip = XFS_I(dentry->d_inode); |
4ca488eb CH |
1090 | __uint64_t fakeinos, id; |
1091 | xfs_extlen_t lsize; | |
2fe33661 | 1092 | __int64_t ffree; |
4ca488eb CH |
1093 | |
1094 | statp->f_type = XFS_SB_MAGIC; | |
1095 | statp->f_namelen = MAXNAMELEN - 1; | |
1096 | ||
1097 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); | |
1098 | statp->f_fsid.val[0] = (u32)id; | |
1099 | statp->f_fsid.val[1] = (u32)(id >> 32); | |
1100 | ||
d4d90b57 | 1101 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
4ca488eb CH |
1102 | |
1103 | spin_lock(&mp->m_sb_lock); | |
1104 | statp->f_bsize = sbp->sb_blocksize; | |
1105 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; | |
1106 | statp->f_blocks = sbp->sb_dblocks - lsize; | |
1107 | statp->f_bfree = statp->f_bavail = | |
1108 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); | |
1109 | fakeinos = statp->f_bfree << sbp->sb_inopblog; | |
4ca488eb CH |
1110 | statp->f_files = |
1111 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); | |
1112 | if (mp->m_maxicount) | |
a19d9f88 CH |
1113 | statp->f_files = min_t(typeof(statp->f_files), |
1114 | statp->f_files, | |
1115 | mp->m_maxicount); | |
2fe33661 SB |
1116 | |
1117 | /* make sure statp->f_ffree does not underflow */ | |
1118 | ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); | |
1119 | statp->f_ffree = max_t(__int64_t, ffree, 0); | |
1120 | ||
4ca488eb CH |
1121 | spin_unlock(&mp->m_sb_lock); |
1122 | ||
da5bf95e | 1123 | if ((ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) && |
83e782e1 CS |
1124 | ((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD))) == |
1125 | (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD)) | |
7d095257 | 1126 | xfs_qm_statvfs(ip, statp); |
4ca488eb | 1127 | return 0; |
1da177e4 LT |
1128 | } |
1129 | ||
d5db0f97 ES |
1130 | STATIC void |
1131 | xfs_save_resvblks(struct xfs_mount *mp) | |
1132 | { | |
1133 | __uint64_t resblks = 0; | |
1134 | ||
1135 | mp->m_resblks_save = mp->m_resblks; | |
1136 | xfs_reserve_blocks(mp, &resblks, NULL); | |
1137 | } | |
1138 | ||
1139 | STATIC void | |
1140 | xfs_restore_resvblks(struct xfs_mount *mp) | |
1141 | { | |
1142 | __uint64_t resblks; | |
1143 | ||
1144 | if (mp->m_resblks_save) { | |
1145 | resblks = mp->m_resblks_save; | |
1146 | mp->m_resblks_save = 0; | |
1147 | } else | |
1148 | resblks = xfs_default_resblks(mp); | |
1149 | ||
1150 | xfs_reserve_blocks(mp, &resblks, NULL); | |
1151 | } | |
1152 | ||
c7eea6f7 DC |
1153 | /* |
1154 | * Trigger writeback of all the dirty metadata in the file system. | |
1155 | * | |
1156 | * This ensures that the metadata is written to their location on disk rather | |
1157 | * than just existing in transactions in the log. This means after a quiesce | |
c75921a7 DC |
1158 | * there is no log replay required to write the inodes to disk - this is the |
1159 | * primary difference between a sync and a quiesce. | |
c7eea6f7 | 1160 | * |
c75921a7 DC |
1161 | * Note: xfs_log_quiesce() stops background log work - the callers must ensure |
1162 | * it is started again when appropriate. | |
c7eea6f7 DC |
1163 | */ |
1164 | void | |
1165 | xfs_quiesce_attr( | |
1166 | struct xfs_mount *mp) | |
1167 | { | |
1168 | int error = 0; | |
1169 | ||
1170 | /* wait for all modifications to complete */ | |
1171 | while (atomic_read(&mp->m_active_trans) > 0) | |
1172 | delay(100); | |
1173 | ||
1174 | /* force the log to unpin objects from the now complete transactions */ | |
1175 | xfs_log_force(mp, XFS_LOG_SYNC); | |
1176 | ||
1177 | /* reclaim inodes to do any IO before the freeze completes */ | |
1178 | xfs_reclaim_inodes(mp, 0); | |
1179 | xfs_reclaim_inodes(mp, SYNC_WAIT); | |
1180 | ||
c7eea6f7 DC |
1181 | /* Push the superblock and write an unmount record */ |
1182 | error = xfs_log_sbcount(mp); | |
1183 | if (error) | |
1184 | xfs_warn(mp, "xfs_attr_quiesce: failed to log sb changes. " | |
1185 | "Frozen image may not be consistent."); | |
c7eea6f7 | 1186 | /* |
c75921a7 DC |
1187 | * Just warn here till VFS can correctly support |
1188 | * read-only remount without racing. | |
c7eea6f7 | 1189 | */ |
c75921a7 | 1190 | WARN_ON(atomic_read(&mp->m_active_trans) != 0); |
c7eea6f7 | 1191 | |
c75921a7 | 1192 | xfs_log_quiesce(mp); |
c7eea6f7 DC |
1193 | } |
1194 | ||
1da177e4 | 1195 | STATIC int |
a50cd269 | 1196 | xfs_fs_remount( |
1da177e4 LT |
1197 | struct super_block *sb, |
1198 | int *flags, | |
1199 | char *options) | |
1200 | { | |
745f6919 | 1201 | struct xfs_mount *mp = XFS_M(sb); |
62a877e3 CH |
1202 | substring_t args[MAX_OPT_ARGS]; |
1203 | char *p; | |
7884bc86 | 1204 | int error; |
1da177e4 | 1205 | |
62a877e3 CH |
1206 | while ((p = strsep(&options, ",")) != NULL) { |
1207 | int token; | |
bdd907ba | 1208 | |
62a877e3 CH |
1209 | if (!*p) |
1210 | continue; | |
48b62a1a | 1211 | |
62a877e3 CH |
1212 | token = match_token(p, tokens, args); |
1213 | switch (token) { | |
1214 | case Opt_barrier: | |
48b62a1a | 1215 | mp->m_flags |= XFS_MOUNT_BARRIER; |
62a877e3 CH |
1216 | break; |
1217 | case Opt_nobarrier: | |
48b62a1a | 1218 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
62a877e3 | 1219 | break; |
c3a58fec | 1220 | case Opt_inode64: |
4c083722 | 1221 | mp->m_maxagi = xfs_set_inode64(mp); |
c3a58fec | 1222 | break; |
2ea03929 CM |
1223 | case Opt_inode32: |
1224 | mp->m_maxagi = xfs_set_inode32(mp); | |
1225 | break; | |
62a877e3 | 1226 | default: |
6efdf281 CH |
1227 | /* |
1228 | * Logically we would return an error here to prevent | |
1229 | * users from believing they might have changed | |
1230 | * mount options using remount which can't be changed. | |
1231 | * | |
1232 | * But unfortunately mount(8) adds all options from | |
1233 | * mtab and fstab to the mount arguments in some cases | |
1234 | * so we can't blindly reject options, but have to | |
1235 | * check for each specified option if it actually | |
1236 | * differs from the currently set option and only | |
1237 | * reject it if that's the case. | |
1238 | * | |
1239 | * Until that is implemented we return success for | |
1240 | * every remount request, and silently ignore all | |
1241 | * options that we can't actually change. | |
1242 | */ | |
1243 | #if 0 | |
4f10700a | 1244 | xfs_info(mp, |
08e96e1a | 1245 | "mount option \"%s\" not supported for remount", p); |
62a877e3 | 1246 | return -EINVAL; |
6efdf281 | 1247 | #else |
6c5e51da | 1248 | break; |
6efdf281 | 1249 | #endif |
48b62a1a | 1250 | } |
62a877e3 CH |
1251 | } |
1252 | ||
7884bc86 | 1253 | /* ro -> rw */ |
62a877e3 CH |
1254 | if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(*flags & MS_RDONLY)) { |
1255 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | |
7884bc86 CH |
1256 | |
1257 | /* | |
1258 | * If this is the first remount to writeable state we | |
1259 | * might have some superblock changes to update. | |
1260 | */ | |
1261 | if (mp->m_update_flags) { | |
1262 | error = xfs_mount_log_sb(mp, mp->m_update_flags); | |
1263 | if (error) { | |
4f10700a | 1264 | xfs_warn(mp, "failed to write sb changes"); |
7884bc86 CH |
1265 | return error; |
1266 | } | |
1267 | mp->m_update_flags = 0; | |
1268 | } | |
cbe132a8 DC |
1269 | |
1270 | /* | |
1271 | * Fill out the reserve pool if it is empty. Use the stashed | |
1272 | * value if it is non-zero, otherwise go with the default. | |
1273 | */ | |
d5db0f97 | 1274 | xfs_restore_resvblks(mp); |
f661f1e0 | 1275 | xfs_log_work_queue(mp); |
62a877e3 CH |
1276 | } |
1277 | ||
1278 | /* rw -> ro */ | |
1279 | if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (*flags & MS_RDONLY)) { | |
cbe132a8 | 1280 | /* |
34061f5c DC |
1281 | * Before we sync the metadata, we need to free up the reserve |
1282 | * block pool so that the used block count in the superblock on | |
1283 | * disk is correct at the end of the remount. Stash the current | |
1284 | * reserve pool size so that if we get remounted rw, we can | |
1285 | * return it to the same size. | |
cbe132a8 | 1286 | */ |
d5db0f97 | 1287 | xfs_save_resvblks(mp); |
76bf105c | 1288 | xfs_quiesce_attr(mp); |
48b62a1a CH |
1289 | mp->m_flags |= XFS_MOUNT_RDONLY; |
1290 | } | |
1291 | ||
62a877e3 | 1292 | return 0; |
1da177e4 LT |
1293 | } |
1294 | ||
9909c4aa CH |
1295 | /* |
1296 | * Second stage of a freeze. The data is already frozen so we only | |
76bf105c | 1297 | * need to take care of the metadata. Once that's done write a dummy |
9909c4aa CH |
1298 | * record to dirty the log in case of a crash while frozen. |
1299 | */ | |
c4be0c1d TS |
1300 | STATIC int |
1301 | xfs_fs_freeze( | |
1da177e4 LT |
1302 | struct super_block *sb) |
1303 | { | |
9909c4aa CH |
1304 | struct xfs_mount *mp = XFS_M(sb); |
1305 | ||
d5db0f97 | 1306 | xfs_save_resvblks(mp); |
76bf105c | 1307 | xfs_quiesce_attr(mp); |
c58efdb4 | 1308 | return -xfs_fs_log_dummy(mp); |
1da177e4 LT |
1309 | } |
1310 | ||
d5db0f97 ES |
1311 | STATIC int |
1312 | xfs_fs_unfreeze( | |
1313 | struct super_block *sb) | |
1314 | { | |
1315 | struct xfs_mount *mp = XFS_M(sb); | |
1316 | ||
1317 | xfs_restore_resvblks(mp); | |
f661f1e0 | 1318 | xfs_log_work_queue(mp); |
d5db0f97 ES |
1319 | return 0; |
1320 | } | |
1321 | ||
1da177e4 | 1322 | STATIC int |
a50cd269 | 1323 | xfs_fs_show_options( |
1da177e4 | 1324 | struct seq_file *m, |
34c80b1d | 1325 | struct dentry *root) |
1da177e4 | 1326 | { |
34c80b1d | 1327 | return -xfs_showargs(XFS_M(root->d_sb), m); |
1da177e4 LT |
1328 | } |
1329 | ||
f8f15e42 CH |
1330 | /* |
1331 | * This function fills in xfs_mount_t fields based on mount args. | |
1332 | * Note: the superblock _has_ now been read in. | |
1333 | */ | |
1334 | STATIC int | |
1335 | xfs_finish_flags( | |
f8f15e42 CH |
1336 | struct xfs_mount *mp) |
1337 | { | |
1338 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | |
1339 | ||
025dfdaf | 1340 | /* Fail a mount where the logbuf is smaller than the log stripe */ |
f8f15e42 | 1341 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { |
9d565ffa CH |
1342 | if (mp->m_logbsize <= 0 && |
1343 | mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE) { | |
f8f15e42 | 1344 | mp->m_logbsize = mp->m_sb.sb_logsunit; |
9d565ffa CH |
1345 | } else if (mp->m_logbsize > 0 && |
1346 | mp->m_logbsize < mp->m_sb.sb_logsunit) { | |
4f10700a DC |
1347 | xfs_warn(mp, |
1348 | "logbuf size must be greater than or equal to log stripe size"); | |
f8f15e42 CH |
1349 | return XFS_ERROR(EINVAL); |
1350 | } | |
1351 | } else { | |
1352 | /* Fail a mount if the logbuf is larger than 32K */ | |
9d565ffa | 1353 | if (mp->m_logbsize > XLOG_BIG_RECORD_BSIZE) { |
4f10700a DC |
1354 | xfs_warn(mp, |
1355 | "logbuf size for version 1 logs must be 16K or 32K"); | |
f8f15e42 CH |
1356 | return XFS_ERROR(EINVAL); |
1357 | } | |
1358 | } | |
1359 | ||
d3eaace8 DC |
1360 | /* |
1361 | * V5 filesystems always use attr2 format for attributes. | |
1362 | */ | |
1363 | if (xfs_sb_version_hascrc(&mp->m_sb) && | |
1364 | (mp->m_flags & XFS_MOUNT_NOATTR2)) { | |
1365 | xfs_warn(mp, | |
1366 | "Cannot mount a V5 filesystem as %s. %s is always enabled for V5 filesystems.", | |
1367 | MNTOPT_NOATTR2, MNTOPT_ATTR2); | |
1368 | return XFS_ERROR(EINVAL); | |
1369 | } | |
1370 | ||
f8f15e42 CH |
1371 | /* |
1372 | * mkfs'ed attr2 will turn on attr2 mount unless explicitly | |
1373 | * told by noattr2 to turn it off | |
1374 | */ | |
1375 | if (xfs_sb_version_hasattr2(&mp->m_sb) && | |
9d565ffa | 1376 | !(mp->m_flags & XFS_MOUNT_NOATTR2)) |
f8f15e42 CH |
1377 | mp->m_flags |= XFS_MOUNT_ATTR2; |
1378 | ||
1379 | /* | |
1380 | * prohibit r/w mounts of read-only filesystems | |
1381 | */ | |
1382 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { | |
4f10700a DC |
1383 | xfs_warn(mp, |
1384 | "cannot mount a read-only filesystem as read-write"); | |
f8f15e42 CH |
1385 | return XFS_ERROR(EROFS); |
1386 | } | |
1387 | ||
d892d586 CS |
1388 | if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) && |
1389 | (mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE)) && | |
1390 | !xfs_sb_version_has_pquotino(&mp->m_sb)) { | |
1391 | xfs_warn(mp, | |
1392 | "Super block does not support project and group quota together"); | |
1393 | return XFS_ERROR(EINVAL); | |
1394 | } | |
1395 | ||
f8f15e42 CH |
1396 | return 0; |
1397 | } | |
1398 | ||
1da177e4 | 1399 | STATIC int |
a50cd269 | 1400 | xfs_fs_fill_super( |
1da177e4 LT |
1401 | struct super_block *sb, |
1402 | void *data, | |
1403 | int silent) | |
1404 | { | |
f3dcc13f | 1405 | struct inode *root; |
745f6919 | 1406 | struct xfs_mount *mp = NULL; |
c962fb79 | 1407 | int flags = 0, error = ENOMEM; |
bdd907ba | 1408 | |
c962fb79 CH |
1409 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
1410 | if (!mp) | |
9d565ffa | 1411 | goto out; |
1da177e4 | 1412 | |
c962fb79 | 1413 | spin_lock_init(&mp->m_sb_lock); |
c962fb79 CH |
1414 | mutex_init(&mp->m_growlock); |
1415 | atomic_set(&mp->m_active_trans, 0); | |
7e18530b | 1416 | INIT_DELAYED_WORK(&mp->m_reclaim_work, xfs_reclaim_worker); |
579b62fa | 1417 | INIT_DELAYED_WORK(&mp->m_eofblocks_work, xfs_eofblocks_worker); |
74394496 | 1418 | |
b267ce99 CH |
1419 | mp->m_super = sb; |
1420 | sb->s_fs_info = mp; | |
1da177e4 | 1421 | |
288699fe | 1422 | error = xfs_parseargs(mp, (char *)data); |
745f6919 | 1423 | if (error) |
9d565ffa | 1424 | goto out_free_fsname; |
1da177e4 LT |
1425 | |
1426 | sb_min_blocksize(sb, BBSIZE); | |
0ec58516 | 1427 | sb->s_xattr = xfs_xattr_handlers; |
a50cd269 | 1428 | sb->s_export_op = &xfs_export_operations; |
fcafb71b | 1429 | #ifdef CONFIG_XFS_QUOTA |
a50cd269 | 1430 | sb->s_qcop = &xfs_quotactl_operations; |
fcafb71b | 1431 | #endif |
a50cd269 | 1432 | sb->s_op = &xfs_super_operations; |
1da177e4 | 1433 | |
9d565ffa | 1434 | if (silent) |
f8f15e42 CH |
1435 | flags |= XFS_MFSI_QUIET; |
1436 | ||
9d565ffa | 1437 | error = xfs_open_devices(mp); |
19f354d4 | 1438 | if (error) |
288699fe | 1439 | goto out_free_fsname; |
f8f15e42 | 1440 | |
aa6bf01d | 1441 | error = xfs_init_mount_workqueues(mp); |
61ba35de CH |
1442 | if (error) |
1443 | goto out_close_devices; | |
c962fb79 | 1444 | |
aa6bf01d CH |
1445 | error = xfs_icsb_init_counters(mp); |
1446 | if (error) | |
1447 | goto out_destroy_workqueues; | |
1448 | ||
f8f15e42 CH |
1449 | error = xfs_readsb(mp, flags); |
1450 | if (error) | |
9d565ffa CH |
1451 | goto out_destroy_counters; |
1452 | ||
1453 | error = xfs_finish_flags(mp); | |
f8f15e42 | 1454 | if (error) |
effa2eda | 1455 | goto out_free_sb; |
f8f15e42 | 1456 | |
e34b562c | 1457 | error = xfs_setup_devices(mp); |
19f354d4 | 1458 | if (error) |
effa2eda | 1459 | goto out_free_sb; |
f8f15e42 | 1460 | |
f8f15e42 CH |
1461 | error = xfs_filestream_mount(mp); |
1462 | if (error) | |
effa2eda | 1463 | goto out_free_sb; |
f8f15e42 | 1464 | |
704b2907 DC |
1465 | /* |
1466 | * we must configure the block size in the superblock before we run the | |
1467 | * full mount process as the mount process can lookup and cache inodes. | |
704b2907 | 1468 | */ |
4ca488eb CH |
1469 | sb->s_magic = XFS_SB_MAGIC; |
1470 | sb->s_blocksize = mp->m_sb.sb_blocksize; | |
1471 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; | |
1da177e4 | 1472 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
8de52778 | 1473 | sb->s_max_links = XFS_MAXLINK; |
1da177e4 LT |
1474 | sb->s_time_gran = 1; |
1475 | set_posix_acl_flag(sb); | |
1476 | ||
dc037ad7 DC |
1477 | /* version 5 superblocks support inode version counters. */ |
1478 | if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5) | |
1479 | sb->s_flags |= MS_I_VERSION; | |
1480 | ||
8a00ebe4 | 1481 | error = xfs_mountfs(mp); |
2bcf6e97 | 1482 | if (error) |
7e18530b | 1483 | goto out_filestream_unmount; |
704b2907 | 1484 | |
01651646 | 1485 | root = igrab(VFS_I(mp->m_rootip)); |
f3dcc13f | 1486 | if (!root) { |
cbc89dcf | 1487 | error = ENOENT; |
8a00ebe4 | 1488 | goto out_unmount; |
cbc89dcf | 1489 | } |
48fde701 | 1490 | sb->s_root = d_make_root(root); |
f3dcc13f CH |
1491 | if (!sb->s_root) { |
1492 | error = ENOMEM; | |
8a00ebe4 | 1493 | goto out_unmount; |
1da177e4 | 1494 | } |
74394496 | 1495 | |
1da177e4 | 1496 | return 0; |
33c7a2bc | 1497 | |
7e18530b | 1498 | out_filestream_unmount: |
120226c1 | 1499 | xfs_filestream_unmount(mp); |
effa2eda CH |
1500 | out_free_sb: |
1501 | xfs_freesb(mp); | |
9d565ffa | 1502 | out_destroy_counters: |
c962fb79 | 1503 | xfs_icsb_destroy_counters(mp); |
aa6bf01d CH |
1504 | out_destroy_workqueues: |
1505 | xfs_destroy_mount_workqueues(mp); | |
61ba35de | 1506 | out_close_devices: |
19f354d4 | 1507 | xfs_close_devices(mp); |
9d565ffa CH |
1508 | out_free_fsname: |
1509 | xfs_free_fsname(mp); | |
c962fb79 | 1510 | kfree(mp); |
9d565ffa | 1511 | out: |
c962fb79 | 1512 | return -error; |
f8f15e42 | 1513 | |
2bcf6e97 | 1514 | out_unmount: |
e48ad316 | 1515 | xfs_filestream_unmount(mp); |
19f354d4 | 1516 | xfs_unmountfs(mp); |
6203300e | 1517 | goto out_free_sb; |
1da177e4 LT |
1518 | } |
1519 | ||
152a0836 AV |
1520 | STATIC struct dentry * |
1521 | xfs_fs_mount( | |
1da177e4 LT |
1522 | struct file_system_type *fs_type, |
1523 | int flags, | |
1524 | const char *dev_name, | |
152a0836 | 1525 | void *data) |
1da177e4 | 1526 | { |
152a0836 | 1527 | return mount_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super); |
a50cd269 NS |
1528 | } |
1529 | ||
0a234c6d | 1530 | static long |
8daaa831 | 1531 | xfs_fs_nr_cached_objects( |
9b17c623 DC |
1532 | struct super_block *sb, |
1533 | int nid) | |
8daaa831 DC |
1534 | { |
1535 | return xfs_reclaim_inodes_count(XFS_M(sb)); | |
1536 | } | |
1537 | ||
0a234c6d | 1538 | static long |
8daaa831 DC |
1539 | xfs_fs_free_cached_objects( |
1540 | struct super_block *sb, | |
9b17c623 DC |
1541 | long nr_to_scan, |
1542 | int nid) | |
8daaa831 | 1543 | { |
0a234c6d | 1544 | return xfs_reclaim_inodes_nr(XFS_M(sb), nr_to_scan); |
8daaa831 DC |
1545 | } |
1546 | ||
b87221de | 1547 | static const struct super_operations xfs_super_operations = { |
a50cd269 NS |
1548 | .alloc_inode = xfs_fs_alloc_inode, |
1549 | .destroy_inode = xfs_fs_destroy_inode, | |
b57922d9 | 1550 | .evict_inode = xfs_fs_evict_inode, |
5132ba8f | 1551 | .drop_inode = xfs_fs_drop_inode, |
a50cd269 | 1552 | .put_super = xfs_fs_put_super, |
69961a26 | 1553 | .sync_fs = xfs_fs_sync_fs, |
c4be0c1d | 1554 | .freeze_fs = xfs_fs_freeze, |
d5db0f97 | 1555 | .unfreeze_fs = xfs_fs_unfreeze, |
a50cd269 NS |
1556 | .statfs = xfs_fs_statfs, |
1557 | .remount_fs = xfs_fs_remount, | |
1558 | .show_options = xfs_fs_show_options, | |
8daaa831 DC |
1559 | .nr_cached_objects = xfs_fs_nr_cached_objects, |
1560 | .free_cached_objects = xfs_fs_free_cached_objects, | |
1da177e4 LT |
1561 | }; |
1562 | ||
5085b607 | 1563 | static struct file_system_type xfs_fs_type = { |
1da177e4 LT |
1564 | .owner = THIS_MODULE, |
1565 | .name = "xfs", | |
152a0836 | 1566 | .mount = xfs_fs_mount, |
1da177e4 LT |
1567 | .kill_sb = kill_block_super, |
1568 | .fs_flags = FS_REQUIRES_DEV, | |
1569 | }; | |
7f78e035 | 1570 | MODULE_ALIAS_FS("xfs"); |
1da177e4 | 1571 | |
9f8868ff CH |
1572 | STATIC int __init |
1573 | xfs_init_zones(void) | |
1574 | { | |
9f8868ff CH |
1575 | |
1576 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); | |
1577 | if (!xfs_ioend_zone) | |
bf904248 | 1578 | goto out; |
9f8868ff CH |
1579 | |
1580 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, | |
1581 | xfs_ioend_zone); | |
1582 | if (!xfs_ioend_pool) | |
1583 | goto out_destroy_ioend_zone; | |
1584 | ||
1585 | xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t), | |
1586 | "xfs_log_ticket"); | |
1587 | if (!xfs_log_ticket_zone) | |
1588 | goto out_destroy_ioend_pool; | |
1589 | ||
1590 | xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t), | |
1591 | "xfs_bmap_free_item"); | |
1592 | if (!xfs_bmap_free_item_zone) | |
1593 | goto out_destroy_log_ticket_zone; | |
bf904248 | 1594 | |
9f8868ff CH |
1595 | xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t), |
1596 | "xfs_btree_cur"); | |
1597 | if (!xfs_btree_cur_zone) | |
1598 | goto out_destroy_bmap_free_item_zone; | |
1599 | ||
1600 | xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t), | |
1601 | "xfs_da_state"); | |
1602 | if (!xfs_da_state_zone) | |
1603 | goto out_destroy_btree_cur_zone; | |
1604 | ||
9f8868ff CH |
1605 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); |
1606 | if (!xfs_ifork_zone) | |
1d9025e5 | 1607 | goto out_destroy_da_state_zone; |
9f8868ff CH |
1608 | |
1609 | xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans"); | |
1610 | if (!xfs_trans_zone) | |
1611 | goto out_destroy_ifork_zone; | |
1612 | ||
e98c414f CH |
1613 | xfs_log_item_desc_zone = |
1614 | kmem_zone_init(sizeof(struct xfs_log_item_desc), | |
1615 | "xfs_log_item_desc"); | |
1616 | if (!xfs_log_item_desc_zone) | |
1617 | goto out_destroy_trans_zone; | |
1618 | ||
9f8868ff CH |
1619 | /* |
1620 | * The size of the zone allocated buf log item is the maximum | |
1621 | * size possible under XFS. This wastes a little bit of memory, | |
1622 | * but it is much faster. | |
1623 | */ | |
77c1a08f DC |
1624 | xfs_buf_item_zone = kmem_zone_init(sizeof(struct xfs_buf_log_item), |
1625 | "xfs_buf_item"); | |
9f8868ff | 1626 | if (!xfs_buf_item_zone) |
e98c414f | 1627 | goto out_destroy_log_item_desc_zone; |
9f8868ff CH |
1628 | |
1629 | xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) + | |
1630 | ((XFS_EFD_MAX_FAST_EXTENTS - 1) * | |
1631 | sizeof(xfs_extent_t))), "xfs_efd_item"); | |
1632 | if (!xfs_efd_zone) | |
1633 | goto out_destroy_buf_item_zone; | |
1634 | ||
1635 | xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) + | |
1636 | ((XFS_EFI_MAX_FAST_EXTENTS - 1) * | |
1637 | sizeof(xfs_extent_t))), "xfs_efi_item"); | |
1638 | if (!xfs_efi_zone) | |
1639 | goto out_destroy_efd_zone; | |
1640 | ||
1641 | xfs_inode_zone = | |
1642 | kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode", | |
bf904248 DC |
1643 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | KM_ZONE_SPREAD, |
1644 | xfs_fs_inode_init_once); | |
9f8868ff CH |
1645 | if (!xfs_inode_zone) |
1646 | goto out_destroy_efi_zone; | |
1647 | ||
1648 | xfs_ili_zone = | |
1649 | kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili", | |
1650 | KM_ZONE_SPREAD, NULL); | |
1651 | if (!xfs_ili_zone) | |
1652 | goto out_destroy_inode_zone; | |
3ebe7d2d DC |
1653 | xfs_icreate_zone = kmem_zone_init(sizeof(struct xfs_icreate_item), |
1654 | "xfs_icr"); | |
1655 | if (!xfs_icreate_zone) | |
1656 | goto out_destroy_ili_zone; | |
9f8868ff | 1657 | |
9f8868ff CH |
1658 | return 0; |
1659 | ||
3ebe7d2d DC |
1660 | out_destroy_ili_zone: |
1661 | kmem_zone_destroy(xfs_ili_zone); | |
9f8868ff CH |
1662 | out_destroy_inode_zone: |
1663 | kmem_zone_destroy(xfs_inode_zone); | |
1664 | out_destroy_efi_zone: | |
1665 | kmem_zone_destroy(xfs_efi_zone); | |
1666 | out_destroy_efd_zone: | |
1667 | kmem_zone_destroy(xfs_efd_zone); | |
1668 | out_destroy_buf_item_zone: | |
1669 | kmem_zone_destroy(xfs_buf_item_zone); | |
e98c414f CH |
1670 | out_destroy_log_item_desc_zone: |
1671 | kmem_zone_destroy(xfs_log_item_desc_zone); | |
9f8868ff CH |
1672 | out_destroy_trans_zone: |
1673 | kmem_zone_destroy(xfs_trans_zone); | |
1674 | out_destroy_ifork_zone: | |
1675 | kmem_zone_destroy(xfs_ifork_zone); | |
9f8868ff CH |
1676 | out_destroy_da_state_zone: |
1677 | kmem_zone_destroy(xfs_da_state_zone); | |
1678 | out_destroy_btree_cur_zone: | |
1679 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1680 | out_destroy_bmap_free_item_zone: | |
1681 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1682 | out_destroy_log_ticket_zone: | |
1683 | kmem_zone_destroy(xfs_log_ticket_zone); | |
1684 | out_destroy_ioend_pool: | |
1685 | mempool_destroy(xfs_ioend_pool); | |
1686 | out_destroy_ioend_zone: | |
1687 | kmem_zone_destroy(xfs_ioend_zone); | |
9f8868ff CH |
1688 | out: |
1689 | return -ENOMEM; | |
1690 | } | |
1691 | ||
1692 | STATIC void | |
1693 | xfs_destroy_zones(void) | |
1694 | { | |
8c0a8537 KS |
1695 | /* |
1696 | * Make sure all delayed rcu free are flushed before we | |
1697 | * destroy caches. | |
1698 | */ | |
1699 | rcu_barrier(); | |
3ebe7d2d | 1700 | kmem_zone_destroy(xfs_icreate_zone); |
9f8868ff CH |
1701 | kmem_zone_destroy(xfs_ili_zone); |
1702 | kmem_zone_destroy(xfs_inode_zone); | |
1703 | kmem_zone_destroy(xfs_efi_zone); | |
1704 | kmem_zone_destroy(xfs_efd_zone); | |
1705 | kmem_zone_destroy(xfs_buf_item_zone); | |
e98c414f | 1706 | kmem_zone_destroy(xfs_log_item_desc_zone); |
9f8868ff CH |
1707 | kmem_zone_destroy(xfs_trans_zone); |
1708 | kmem_zone_destroy(xfs_ifork_zone); | |
9f8868ff CH |
1709 | kmem_zone_destroy(xfs_da_state_zone); |
1710 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1711 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1712 | kmem_zone_destroy(xfs_log_ticket_zone); | |
1713 | mempool_destroy(xfs_ioend_pool); | |
1714 | kmem_zone_destroy(xfs_ioend_zone); | |
9f8868ff CH |
1715 | |
1716 | } | |
1da177e4 | 1717 | |
0bf6a5bd DC |
1718 | STATIC int __init |
1719 | xfs_init_workqueues(void) | |
1720 | { | |
c999a223 DC |
1721 | /* |
1722 | * The allocation workqueue can be used in memory reclaim situations | |
1723 | * (writepage path), and parallelism is only limited by the number of | |
1724 | * AGs in all the filesystems mounted. Hence use the default large | |
1725 | * max_active value for this workqueue. | |
1726 | */ | |
1727 | xfs_alloc_wq = alloc_workqueue("xfsalloc", WQ_MEM_RECLAIM, 0); | |
1728 | if (!xfs_alloc_wq) | |
5889608d | 1729 | return -ENOMEM; |
c999a223 | 1730 | |
0bf6a5bd | 1731 | return 0; |
0bf6a5bd DC |
1732 | } |
1733 | ||
39411f81 | 1734 | STATIC void |
0bf6a5bd DC |
1735 | xfs_destroy_workqueues(void) |
1736 | { | |
c999a223 | 1737 | destroy_workqueue(xfs_alloc_wq); |
0bf6a5bd DC |
1738 | } |
1739 | ||
1da177e4 | 1740 | STATIC int __init |
9f8868ff | 1741 | init_xfs_fs(void) |
1da177e4 LT |
1742 | { |
1743 | int error; | |
1da177e4 | 1744 | |
65795910 CH |
1745 | printk(KERN_INFO XFS_VERSION_STRING " with " |
1746 | XFS_BUILD_OPTIONS " enabled\n"); | |
1da177e4 | 1747 | |
9f8868ff | 1748 | xfs_dir_startup(); |
1da177e4 | 1749 | |
8758280f | 1750 | error = xfs_init_zones(); |
9f8868ff CH |
1751 | if (error) |
1752 | goto out; | |
1753 | ||
0bf6a5bd | 1754 | error = xfs_init_workqueues(); |
9f8868ff | 1755 | if (error) |
0b1b213f | 1756 | goto out_destroy_zones; |
9f8868ff | 1757 | |
0bf6a5bd DC |
1758 | error = xfs_mru_cache_init(); |
1759 | if (error) | |
1760 | goto out_destroy_wq; | |
1761 | ||
9f8868ff CH |
1762 | error = xfs_filestream_init(); |
1763 | if (error) | |
1764 | goto out_mru_cache_uninit; | |
1da177e4 | 1765 | |
ce8e922c | 1766 | error = xfs_buf_init(); |
9f8868ff CH |
1767 | if (error) |
1768 | goto out_filestream_uninit; | |
1769 | ||
1770 | error = xfs_init_procfs(); | |
1771 | if (error) | |
1772 | goto out_buf_terminate; | |
1773 | ||
1774 | error = xfs_sysctl_register(); | |
1775 | if (error) | |
1776 | goto out_cleanup_procfs; | |
1da177e4 | 1777 | |
a05931ce CH |
1778 | error = xfs_qm_init(); |
1779 | if (error) | |
1780 | goto out_sysctl_unregister; | |
1da177e4 LT |
1781 | |
1782 | error = register_filesystem(&xfs_fs_type); | |
1783 | if (error) | |
a05931ce | 1784 | goto out_qm_exit; |
1da177e4 LT |
1785 | return 0; |
1786 | ||
a05931ce CH |
1787 | out_qm_exit: |
1788 | xfs_qm_exit(); | |
9f8868ff CH |
1789 | out_sysctl_unregister: |
1790 | xfs_sysctl_unregister(); | |
1791 | out_cleanup_procfs: | |
1792 | xfs_cleanup_procfs(); | |
1793 | out_buf_terminate: | |
ce8e922c | 1794 | xfs_buf_terminate(); |
9f8868ff CH |
1795 | out_filestream_uninit: |
1796 | xfs_filestream_uninit(); | |
1797 | out_mru_cache_uninit: | |
1798 | xfs_mru_cache_uninit(); | |
0bf6a5bd DC |
1799 | out_destroy_wq: |
1800 | xfs_destroy_workqueues(); | |
9f8868ff | 1801 | out_destroy_zones: |
8758280f | 1802 | xfs_destroy_zones(); |
9f8868ff | 1803 | out: |
1da177e4 LT |
1804 | return error; |
1805 | } | |
1806 | ||
1807 | STATIC void __exit | |
9f8868ff | 1808 | exit_xfs_fs(void) |
1da177e4 | 1809 | { |
a05931ce | 1810 | xfs_qm_exit(); |
1da177e4 | 1811 | unregister_filesystem(&xfs_fs_type); |
9f8868ff CH |
1812 | xfs_sysctl_unregister(); |
1813 | xfs_cleanup_procfs(); | |
ce8e922c | 1814 | xfs_buf_terminate(); |
9f8868ff CH |
1815 | xfs_filestream_uninit(); |
1816 | xfs_mru_cache_uninit(); | |
0bf6a5bd | 1817 | xfs_destroy_workqueues(); |
8758280f | 1818 | xfs_destroy_zones(); |
1da177e4 LT |
1819 | } |
1820 | ||
1821 | module_init(init_xfs_fs); | |
1822 | module_exit(exit_xfs_fs); | |
1823 | ||
1824 | MODULE_AUTHOR("Silicon Graphics, Inc."); | |
1825 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); | |
1826 | MODULE_LICENSE("GPL"); |