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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 | 20 | #include "xfs_log.h" |
a844f451 | 21 | #include "xfs_inum.h" |
1da177e4 LT |
22 | #include "xfs_trans.h" |
23 | #include "xfs_sb.h" | |
a844f451 | 24 | #include "xfs_ag.h" |
1da177e4 LT |
25 | #include "xfs_dir2.h" |
26 | #include "xfs_alloc.h" | |
27 | #include "xfs_dmapi.h" | |
28 | #include "xfs_quota.h" | |
29 | #include "xfs_mount.h" | |
1da177e4 | 30 | #include "xfs_bmap_btree.h" |
a844f451 | 31 | #include "xfs_alloc_btree.h" |
1da177e4 | 32 | #include "xfs_ialloc_btree.h" |
1da177e4 | 33 | #include "xfs_dir2_sf.h" |
a844f451 | 34 | #include "xfs_attr_sf.h" |
1da177e4 LT |
35 | #include "xfs_dinode.h" |
36 | #include "xfs_inode.h" | |
a844f451 | 37 | #include "xfs_btree.h" |
8c4ed633 | 38 | #include "xfs_btree_trace.h" |
a844f451 | 39 | #include "xfs_ialloc.h" |
1da177e4 | 40 | #include "xfs_bmap.h" |
1da177e4 LT |
41 | #include "xfs_rtalloc.h" |
42 | #include "xfs_error.h" | |
43 | #include "xfs_itable.h" | |
9909c4aa | 44 | #include "xfs_fsops.h" |
1da177e4 LT |
45 | #include "xfs_rw.h" |
46 | #include "xfs_acl.h" | |
1da177e4 LT |
47 | #include "xfs_attr.h" |
48 | #include "xfs_buf_item.h" | |
49 | #include "xfs_utils.h" | |
739bfb2a | 50 | #include "xfs_vnodeops.h" |
745f6919 | 51 | #include "xfs_vfsops.h" |
1da177e4 | 52 | #include "xfs_version.h" |
a67d7c5f | 53 | #include "xfs_log_priv.h" |
249a8c11 | 54 | #include "xfs_trans_priv.h" |
48b62a1a | 55 | #include "xfs_filestream.h" |
9f8868ff CH |
56 | #include "xfs_da_btree.h" |
57 | #include "xfs_dir2_trace.h" | |
58 | #include "xfs_extfree_item.h" | |
59 | #include "xfs_mru_cache.h" | |
60 | #include "xfs_inode_item.h" | |
fe4fa4b8 | 61 | #include "xfs_sync.h" |
1da177e4 LT |
62 | |
63 | #include <linux/namei.h> | |
64 | #include <linux/init.h> | |
65 | #include <linux/mount.h> | |
0829c360 | 66 | #include <linux/mempool.h> |
1da177e4 | 67 | #include <linux/writeback.h> |
4df08c52 | 68 | #include <linux/kthread.h> |
7dfb7103 | 69 | #include <linux/freezer.h> |
62a877e3 | 70 | #include <linux/parser.h> |
1da177e4 | 71 | |
7989cb8e DC |
72 | static struct quotactl_ops xfs_quotactl_operations; |
73 | static struct super_operations xfs_super_operations; | |
7989cb8e | 74 | static kmem_zone_t *xfs_ioend_zone; |
0829c360 | 75 | mempool_t *xfs_ioend_pool; |
1da177e4 | 76 | |
a67d7c5f DC |
77 | #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ |
78 | #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ | |
79 | #define MNTOPT_LOGDEV "logdev" /* log device */ | |
80 | #define MNTOPT_RTDEV "rtdev" /* realtime I/O device */ | |
81 | #define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */ | |
82 | #define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */ | |
83 | #define MNTOPT_INO64 "ino64" /* force inodes into 64-bit range */ | |
84 | #define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */ | |
85 | #define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */ | |
86 | #define MNTOPT_SUNIT "sunit" /* data volume stripe unit */ | |
87 | #define MNTOPT_SWIDTH "swidth" /* data volume stripe width */ | |
88 | #define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */ | |
89 | #define MNTOPT_MTPT "mtpt" /* filesystem mount point */ | |
90 | #define MNTOPT_GRPID "grpid" /* group-ID from parent directory */ | |
91 | #define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */ | |
92 | #define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */ | |
93 | #define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */ | |
94 | #define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */ | |
95 | #define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */ | |
96 | #define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and | |
97 | * unwritten extent conversion */ | |
98 | #define MNTOPT_NOBARRIER "nobarrier" /* .. disable */ | |
99 | #define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */ | |
100 | #define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */ | |
101 | #define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */ | |
102 | #define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */ | |
103 | #define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */ | |
104 | #define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes | |
105 | * in stat(). */ | |
106 | #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ | |
107 | #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ | |
108 | #define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */ | |
109 | #define MNTOPT_QUOTA "quota" /* disk quotas (user) */ | |
110 | #define MNTOPT_NOQUOTA "noquota" /* no quotas */ | |
111 | #define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */ | |
112 | #define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */ | |
113 | #define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */ | |
114 | #define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */ | |
115 | #define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */ | |
116 | #define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */ | |
117 | #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */ | |
118 | #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */ | |
119 | #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */ | |
120 | #define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */ | |
121 | #define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */ | |
122 | #define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */ | |
123 | #define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */ | |
124 | ||
62a877e3 CH |
125 | /* |
126 | * Table driven mount option parser. | |
127 | * | |
128 | * Currently only used for remount, but it will be used for mount | |
129 | * in the future, too. | |
130 | */ | |
131 | enum { | |
132 | Opt_barrier, Opt_nobarrier, Opt_err | |
133 | }; | |
134 | ||
a447c093 | 135 | static const match_table_t tokens = { |
62a877e3 CH |
136 | {Opt_barrier, "barrier"}, |
137 | {Opt_nobarrier, "nobarrier"}, | |
138 | {Opt_err, NULL} | |
139 | }; | |
140 | ||
141 | ||
a67d7c5f DC |
142 | STATIC unsigned long |
143 | suffix_strtoul(char *s, char **endp, unsigned int base) | |
144 | { | |
145 | int last, shift_left_factor = 0; | |
146 | char *value = s; | |
147 | ||
148 | last = strlen(value) - 1; | |
149 | if (value[last] == 'K' || value[last] == 'k') { | |
150 | shift_left_factor = 10; | |
151 | value[last] = '\0'; | |
152 | } | |
153 | if (value[last] == 'M' || value[last] == 'm') { | |
154 | shift_left_factor = 20; | |
155 | value[last] = '\0'; | |
156 | } | |
157 | if (value[last] == 'G' || value[last] == 'g') { | |
158 | shift_left_factor = 30; | |
159 | value[last] = '\0'; | |
160 | } | |
161 | ||
162 | return simple_strtoul((const char *)s, endp, base) << shift_left_factor; | |
163 | } | |
164 | ||
9d565ffa CH |
165 | /* |
166 | * This function fills in xfs_mount_t fields based on mount args. | |
167 | * Note: the superblock has _not_ yet been read in. | |
168 | * | |
169 | * Note that this function leaks the various device name allocations on | |
170 | * failure. The caller takes care of them. | |
171 | */ | |
a67d7c5f DC |
172 | STATIC int |
173 | xfs_parseargs( | |
174 | struct xfs_mount *mp, | |
175 | char *options, | |
9d565ffa | 176 | char **mtpt) |
a67d7c5f | 177 | { |
9d565ffa | 178 | struct super_block *sb = mp->m_super; |
a67d7c5f | 179 | char *this_char, *value, *eov; |
9d565ffa CH |
180 | int dsunit = 0; |
181 | int dswidth = 0; | |
182 | int iosize = 0; | |
1bd960ee | 183 | int dmapi_implies_ikeep = 1; |
9d565ffa CH |
184 | uchar_t iosizelog = 0; |
185 | ||
186 | /* | |
187 | * Copy binary VFS mount flags we are interested in. | |
188 | */ | |
189 | if (sb->s_flags & MS_RDONLY) | |
190 | mp->m_flags |= XFS_MOUNT_RDONLY; | |
191 | if (sb->s_flags & MS_DIRSYNC) | |
192 | mp->m_flags |= XFS_MOUNT_DIRSYNC; | |
193 | if (sb->s_flags & MS_SYNCHRONOUS) | |
194 | mp->m_flags |= XFS_MOUNT_WSYNC; | |
195 | ||
196 | /* | |
197 | * Set some default flags that could be cleared by the mount option | |
198 | * parsing. | |
199 | */ | |
200 | mp->m_flags |= XFS_MOUNT_BARRIER; | |
201 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; | |
202 | mp->m_flags |= XFS_MOUNT_SMALL_INUMS; | |
a67d7c5f | 203 | |
9d565ffa CH |
204 | /* |
205 | * These can be overridden by the mount option parsing. | |
206 | */ | |
207 | mp->m_logbufs = -1; | |
208 | mp->m_logbsize = -1; | |
a67d7c5f DC |
209 | |
210 | if (!options) | |
211 | goto done; | |
212 | ||
a67d7c5f DC |
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 | } | |
9d565ffa | 226 | mp->m_logbufs = simple_strtoul(value, &eov, 10); |
a67d7c5f DC |
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 | } | |
9d565ffa | 234 | mp->m_logbsize = suffix_strtoul(value, &eov, 10); |
a67d7c5f DC |
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 | } | |
9d565ffa CH |
242 | mp->m_logname = kstrndup(value, MAXNAMELEN, GFP_KERNEL); |
243 | if (!mp->m_logname) | |
244 | return ENOMEM; | |
a67d7c5f DC |
245 | } else if (!strcmp(this_char, MNTOPT_MTPT)) { |
246 | if (!value || !*value) { | |
247 | cmn_err(CE_WARN, | |
248 | "XFS: %s option requires an argument", | |
249 | this_char); | |
250 | return EINVAL; | |
251 | } | |
9d565ffa CH |
252 | *mtpt = kstrndup(value, MAXNAMELEN, GFP_KERNEL); |
253 | if (!*mtpt) | |
254 | return ENOMEM; | |
a67d7c5f DC |
255 | } else if (!strcmp(this_char, MNTOPT_RTDEV)) { |
256 | if (!value || !*value) { | |
257 | cmn_err(CE_WARN, | |
258 | "XFS: %s option requires an argument", | |
259 | this_char); | |
260 | return EINVAL; | |
261 | } | |
9d565ffa CH |
262 | mp->m_rtname = kstrndup(value, MAXNAMELEN, GFP_KERNEL); |
263 | if (!mp->m_rtname) | |
264 | return ENOMEM; | |
a67d7c5f DC |
265 | } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) { |
266 | if (!value || !*value) { | |
267 | cmn_err(CE_WARN, | |
268 | "XFS: %s option requires an argument", | |
269 | this_char); | |
270 | return EINVAL; | |
271 | } | |
272 | iosize = simple_strtoul(value, &eov, 10); | |
1ec7944b | 273 | iosizelog = ffs(iosize) - 1; |
a67d7c5f DC |
274 | } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) { |
275 | if (!value || !*value) { | |
276 | cmn_err(CE_WARN, | |
277 | "XFS: %s option requires an argument", | |
278 | this_char); | |
279 | return EINVAL; | |
280 | } | |
281 | iosize = suffix_strtoul(value, &eov, 10); | |
9d565ffa | 282 | iosizelog = ffs(iosize) - 1; |
a67d7c5f DC |
283 | } else if (!strcmp(this_char, MNTOPT_GRPID) || |
284 | !strcmp(this_char, MNTOPT_BSDGROUPS)) { | |
285 | mp->m_flags |= XFS_MOUNT_GRPID; | |
286 | } else if (!strcmp(this_char, MNTOPT_NOGRPID) || | |
287 | !strcmp(this_char, MNTOPT_SYSVGROUPS)) { | |
288 | mp->m_flags &= ~XFS_MOUNT_GRPID; | |
289 | } else if (!strcmp(this_char, MNTOPT_WSYNC)) { | |
9d565ffa | 290 | mp->m_flags |= XFS_MOUNT_WSYNC; |
a67d7c5f | 291 | } else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) { |
9d565ffa | 292 | mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC; |
a67d7c5f | 293 | } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) { |
9d565ffa | 294 | mp->m_flags |= XFS_MOUNT_NORECOVERY; |
a67d7c5f | 295 | } else if (!strcmp(this_char, MNTOPT_INO64)) { |
9d565ffa CH |
296 | #if XFS_BIG_INUMS |
297 | mp->m_flags |= XFS_MOUNT_INO64; | |
298 | mp->m_inoadd = XFS_INO64_OFFSET; | |
299 | #else | |
a67d7c5f DC |
300 | cmn_err(CE_WARN, |
301 | "XFS: %s option not allowed on this system", | |
302 | this_char); | |
303 | return EINVAL; | |
304 | #endif | |
305 | } else if (!strcmp(this_char, MNTOPT_NOALIGN)) { | |
9d565ffa | 306 | mp->m_flags |= XFS_MOUNT_NOALIGN; |
a67d7c5f | 307 | } else if (!strcmp(this_char, MNTOPT_SWALLOC)) { |
9d565ffa | 308 | mp->m_flags |= XFS_MOUNT_SWALLOC; |
a67d7c5f DC |
309 | } else if (!strcmp(this_char, MNTOPT_SUNIT)) { |
310 | if (!value || !*value) { | |
311 | cmn_err(CE_WARN, | |
312 | "XFS: %s option requires an argument", | |
313 | this_char); | |
314 | return EINVAL; | |
315 | } | |
316 | dsunit = simple_strtoul(value, &eov, 10); | |
317 | } else if (!strcmp(this_char, MNTOPT_SWIDTH)) { | |
318 | if (!value || !*value) { | |
319 | cmn_err(CE_WARN, | |
320 | "XFS: %s option requires an argument", | |
321 | this_char); | |
322 | return EINVAL; | |
323 | } | |
324 | dswidth = simple_strtoul(value, &eov, 10); | |
325 | } else if (!strcmp(this_char, MNTOPT_64BITINODE)) { | |
9d565ffa | 326 | mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS; |
a67d7c5f DC |
327 | #if !XFS_BIG_INUMS |
328 | cmn_err(CE_WARN, | |
329 | "XFS: %s option not allowed on this system", | |
330 | this_char); | |
331 | return EINVAL; | |
332 | #endif | |
333 | } else if (!strcmp(this_char, MNTOPT_NOUUID)) { | |
9d565ffa | 334 | mp->m_flags |= XFS_MOUNT_NOUUID; |
a67d7c5f | 335 | } else if (!strcmp(this_char, MNTOPT_BARRIER)) { |
9d565ffa | 336 | mp->m_flags |= XFS_MOUNT_BARRIER; |
a67d7c5f | 337 | } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { |
9d565ffa | 338 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
a67d7c5f | 339 | } else if (!strcmp(this_char, MNTOPT_IKEEP)) { |
9d565ffa | 340 | mp->m_flags |= XFS_MOUNT_IKEEP; |
a67d7c5f | 341 | } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { |
1bd960ee | 342 | dmapi_implies_ikeep = 0; |
9d565ffa | 343 | mp->m_flags &= ~XFS_MOUNT_IKEEP; |
a67d7c5f | 344 | } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { |
9d565ffa | 345 | mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE; |
a67d7c5f | 346 | } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { |
9d565ffa | 347 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; |
a67d7c5f | 348 | } else if (!strcmp(this_char, MNTOPT_ATTR2)) { |
9d565ffa | 349 | mp->m_flags |= XFS_MOUNT_ATTR2; |
a67d7c5f | 350 | } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { |
9d565ffa CH |
351 | mp->m_flags &= ~XFS_MOUNT_ATTR2; |
352 | mp->m_flags |= XFS_MOUNT_NOATTR2; | |
a67d7c5f | 353 | } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) { |
9d565ffa | 354 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; |
a67d7c5f | 355 | } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) { |
9d565ffa CH |
356 | mp->m_qflags &= ~(XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE | |
357 | XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE | | |
469fc23d | 358 | XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE | |
9d565ffa | 359 | XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD); |
a67d7c5f DC |
360 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || |
361 | !strcmp(this_char, MNTOPT_UQUOTA) || | |
362 | !strcmp(this_char, MNTOPT_USRQUOTA)) { | |
9d565ffa CH |
363 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE | |
364 | XFS_UQUOTA_ENFD); | |
a67d7c5f DC |
365 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || |
366 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { | |
9d565ffa CH |
367 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); |
368 | mp->m_qflags &= ~XFS_UQUOTA_ENFD; | |
a67d7c5f DC |
369 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || |
370 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { | |
9d565ffa CH |
371 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE | |
372 | XFS_OQUOTA_ENFD); | |
a67d7c5f | 373 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { |
9d565ffa CH |
374 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); |
375 | mp->m_qflags &= ~XFS_OQUOTA_ENFD; | |
a67d7c5f DC |
376 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || |
377 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { | |
9d565ffa CH |
378 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE | |
379 | XFS_OQUOTA_ENFD); | |
a67d7c5f | 380 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { |
9d565ffa CH |
381 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); |
382 | mp->m_qflags &= ~XFS_OQUOTA_ENFD; | |
a67d7c5f | 383 | } else if (!strcmp(this_char, MNTOPT_DMAPI)) { |
9d565ffa | 384 | mp->m_flags |= XFS_MOUNT_DMAPI; |
a67d7c5f | 385 | } else if (!strcmp(this_char, MNTOPT_XDSM)) { |
9d565ffa | 386 | mp->m_flags |= XFS_MOUNT_DMAPI; |
a67d7c5f | 387 | } else if (!strcmp(this_char, MNTOPT_DMI)) { |
9d565ffa | 388 | mp->m_flags |= XFS_MOUNT_DMAPI; |
a67d7c5f DC |
389 | } else if (!strcmp(this_char, "ihashsize")) { |
390 | cmn_err(CE_WARN, | |
391 | "XFS: ihashsize no longer used, option is deprecated."); | |
392 | } else if (!strcmp(this_char, "osyncisdsync")) { | |
393 | /* no-op, this is now the default */ | |
394 | cmn_err(CE_WARN, | |
395 | "XFS: osyncisdsync is now the default, option is deprecated."); | |
396 | } else if (!strcmp(this_char, "irixsgid")) { | |
397 | cmn_err(CE_WARN, | |
398 | "XFS: irixsgid is now a sysctl(2) variable, option is deprecated."); | |
399 | } else { | |
400 | cmn_err(CE_WARN, | |
401 | "XFS: unknown mount option [%s].", this_char); | |
402 | return EINVAL; | |
403 | } | |
404 | } | |
405 | ||
9d565ffa CH |
406 | /* |
407 | * no recovery flag requires a read-only mount | |
408 | */ | |
409 | if ((mp->m_flags & XFS_MOUNT_NORECOVERY) && | |
410 | !(mp->m_flags & XFS_MOUNT_RDONLY)) { | |
411 | cmn_err(CE_WARN, "XFS: no-recovery mounts must be read-only."); | |
412 | return EINVAL; | |
a67d7c5f DC |
413 | } |
414 | ||
9d565ffa | 415 | if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) { |
a67d7c5f DC |
416 | cmn_err(CE_WARN, |
417 | "XFS: sunit and swidth options incompatible with the noalign option"); | |
418 | return EINVAL; | |
419 | } | |
420 | ||
9d565ffa CH |
421 | if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) && |
422 | (mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE))) { | |
a67d7c5f DC |
423 | cmn_err(CE_WARN, |
424 | "XFS: cannot mount with both project and group quota"); | |
425 | return EINVAL; | |
426 | } | |
427 | ||
9d565ffa | 428 | if ((mp->m_flags & XFS_MOUNT_DMAPI) && (!*mtpt || *mtpt[0] == '\0')) { |
a67d7c5f DC |
429 | printk("XFS: %s option needs the mount point option as well\n", |
430 | MNTOPT_DMAPI); | |
431 | return EINVAL; | |
432 | } | |
433 | ||
434 | if ((dsunit && !dswidth) || (!dsunit && dswidth)) { | |
435 | cmn_err(CE_WARN, | |
436 | "XFS: sunit and swidth must be specified together"); | |
437 | return EINVAL; | |
438 | } | |
439 | ||
440 | if (dsunit && (dswidth % dsunit != 0)) { | |
441 | cmn_err(CE_WARN, | |
442 | "XFS: stripe width (%d) must be a multiple of the stripe unit (%d)", | |
443 | dswidth, dsunit); | |
444 | return EINVAL; | |
445 | } | |
446 | ||
447 | /* | |
448 | * Applications using DMI filesystems often expect the | |
449 | * inode generation number to be monotonically increasing. | |
450 | * If we delete inode chunks we break this assumption, so | |
451 | * keep unused inode chunks on disk for DMI filesystems | |
452 | * until we come up with a better solution. | |
453 | * Note that if "ikeep" or "noikeep" mount options are | |
454 | * supplied, then they are honored. | |
455 | */ | |
9d565ffa CH |
456 | if ((mp->m_flags & XFS_MOUNT_DMAPI) && dmapi_implies_ikeep) |
457 | mp->m_flags |= XFS_MOUNT_IKEEP; | |
a67d7c5f | 458 | |
9d565ffa CH |
459 | done: |
460 | if (!(mp->m_flags & XFS_MOUNT_NOALIGN)) { | |
461 | /* | |
462 | * At this point the superblock has not been read | |
463 | * in, therefore we do not know the block size. | |
464 | * Before the mount call ends we will convert | |
465 | * these to FSBs. | |
466 | */ | |
a67d7c5f | 467 | if (dsunit) { |
9d565ffa CH |
468 | mp->m_dalign = dsunit; |
469 | mp->m_flags |= XFS_MOUNT_RETERR; | |
a67d7c5f | 470 | } |
9d565ffa CH |
471 | |
472 | if (dswidth) | |
473 | mp->m_swidth = dswidth; | |
474 | } | |
475 | ||
476 | if (mp->m_logbufs != -1 && | |
477 | mp->m_logbufs != 0 && | |
478 | (mp->m_logbufs < XLOG_MIN_ICLOGS || | |
479 | mp->m_logbufs > XLOG_MAX_ICLOGS)) { | |
480 | cmn_err(CE_WARN, | |
481 | "XFS: invalid logbufs value: %d [not %d-%d]", | |
482 | mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); | |
483 | return XFS_ERROR(EINVAL); | |
484 | } | |
485 | if (mp->m_logbsize != -1 && | |
486 | mp->m_logbsize != 0 && | |
487 | (mp->m_logbsize < XLOG_MIN_RECORD_BSIZE || | |
488 | mp->m_logbsize > XLOG_MAX_RECORD_BSIZE || | |
489 | !is_power_of_2(mp->m_logbsize))) { | |
490 | cmn_err(CE_WARN, | |
491 | "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | |
492 | mp->m_logbsize); | |
493 | return XFS_ERROR(EINVAL); | |
494 | } | |
495 | ||
496 | mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL); | |
497 | if (!mp->m_fsname) | |
498 | return ENOMEM; | |
499 | mp->m_fsname_len = strlen(mp->m_fsname) + 1; | |
500 | ||
501 | if (iosizelog) { | |
502 | if (iosizelog > XFS_MAX_IO_LOG || | |
503 | iosizelog < XFS_MIN_IO_LOG) { | |
504 | cmn_err(CE_WARN, | |
505 | "XFS: invalid log iosize: %d [not %d-%d]", | |
506 | iosizelog, XFS_MIN_IO_LOG, | |
507 | XFS_MAX_IO_LOG); | |
508 | return XFS_ERROR(EINVAL); | |
509 | } | |
510 | ||
511 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | |
512 | mp->m_readio_log = iosizelog; | |
513 | mp->m_writeio_log = iosizelog; | |
a67d7c5f DC |
514 | } |
515 | ||
a67d7c5f DC |
516 | return 0; |
517 | } | |
518 | ||
519 | struct proc_xfs_info { | |
520 | int flag; | |
521 | char *str; | |
522 | }; | |
523 | ||
524 | STATIC int | |
525 | xfs_showargs( | |
526 | struct xfs_mount *mp, | |
527 | struct seq_file *m) | |
528 | { | |
529 | static struct proc_xfs_info xfs_info_set[] = { | |
530 | /* the few simple ones we can get from the mount struct */ | |
1bd960ee | 531 | { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, |
a67d7c5f DC |
532 | { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, |
533 | { XFS_MOUNT_INO64, "," MNTOPT_INO64 }, | |
534 | { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, | |
535 | { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC }, | |
536 | { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, | |
537 | { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, | |
538 | { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC }, | |
539 | { XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 }, | |
540 | { XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM }, | |
541 | { XFS_MOUNT_DMAPI, "," MNTOPT_DMAPI }, | |
542 | { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, | |
543 | { 0, NULL } | |
544 | }; | |
545 | static struct proc_xfs_info xfs_info_unset[] = { | |
546 | /* the few simple ones we can get from the mount struct */ | |
a67d7c5f DC |
547 | { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, |
548 | { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, | |
549 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, | |
550 | { 0, NULL } | |
551 | }; | |
552 | struct proc_xfs_info *xfs_infop; | |
553 | ||
554 | for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) { | |
555 | if (mp->m_flags & xfs_infop->flag) | |
556 | seq_puts(m, xfs_infop->str); | |
557 | } | |
558 | for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) { | |
559 | if (!(mp->m_flags & xfs_infop->flag)) | |
560 | seq_puts(m, xfs_infop->str); | |
561 | } | |
562 | ||
563 | if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) | |
564 | seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk", | |
565 | (int)(1 << mp->m_writeio_log) >> 10); | |
566 | ||
567 | if (mp->m_logbufs > 0) | |
568 | seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs); | |
569 | if (mp->m_logbsize > 0) | |
570 | seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10); | |
571 | ||
572 | if (mp->m_logname) | |
573 | seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname); | |
574 | if (mp->m_rtname) | |
575 | seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname); | |
576 | ||
577 | if (mp->m_dalign > 0) | |
578 | seq_printf(m, "," MNTOPT_SUNIT "=%d", | |
579 | (int)XFS_FSB_TO_BB(mp, mp->m_dalign)); | |
580 | if (mp->m_swidth > 0) | |
581 | seq_printf(m, "," MNTOPT_SWIDTH "=%d", | |
582 | (int)XFS_FSB_TO_BB(mp, mp->m_swidth)); | |
583 | ||
584 | if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD)) | |
585 | seq_puts(m, "," MNTOPT_USRQUOTA); | |
586 | else if (mp->m_qflags & XFS_UQUOTA_ACCT) | |
587 | seq_puts(m, "," MNTOPT_UQUOTANOENF); | |
588 | ||
589 | if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
590 | seq_puts(m, "," MNTOPT_PRJQUOTA); | |
591 | else if (mp->m_qflags & XFS_PQUOTA_ACCT) | |
592 | seq_puts(m, "," MNTOPT_PQUOTANOENF); | |
593 | ||
594 | if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
595 | seq_puts(m, "," MNTOPT_GRPQUOTA); | |
596 | else if (mp->m_qflags & XFS_GQUOTA_ACCT) | |
597 | seq_puts(m, "," MNTOPT_GQUOTANOENF); | |
598 | ||
599 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) | |
600 | seq_puts(m, "," MNTOPT_NOQUOTA); | |
601 | ||
602 | return 0; | |
603 | } | |
1da177e4 LT |
604 | __uint64_t |
605 | xfs_max_file_offset( | |
606 | unsigned int blockshift) | |
607 | { | |
608 | unsigned int pagefactor = 1; | |
609 | unsigned int bitshift = BITS_PER_LONG - 1; | |
610 | ||
611 | /* Figure out maximum filesize, on Linux this can depend on | |
612 | * the filesystem blocksize (on 32 bit platforms). | |
613 | * __block_prepare_write does this in an [unsigned] long... | |
614 | * page->index << (PAGE_CACHE_SHIFT - bbits) | |
615 | * So, for page sized blocks (4K on 32 bit platforms), | |
616 | * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is | |
617 | * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) | |
618 | * but for smaller blocksizes it is less (bbits = log2 bsize). | |
619 | * Note1: get_block_t takes a long (implicit cast from above) | |
620 | * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch | |
621 | * can optionally convert the [unsigned] long from above into | |
622 | * an [unsigned] long long. | |
623 | */ | |
624 | ||
625 | #if BITS_PER_LONG == 32 | |
626 | # if defined(CONFIG_LBD) | |
627 | ASSERT(sizeof(sector_t) == 8); | |
628 | pagefactor = PAGE_CACHE_SIZE; | |
629 | bitshift = BITS_PER_LONG; | |
630 | # else | |
631 | pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift); | |
632 | # endif | |
633 | #endif | |
634 | ||
635 | return (((__uint64_t)pagefactor) << bitshift) - 1; | |
636 | } | |
637 | ||
1da177e4 LT |
638 | int |
639 | xfs_blkdev_get( | |
640 | xfs_mount_t *mp, | |
641 | const char *name, | |
642 | struct block_device **bdevp) | |
643 | { | |
644 | int error = 0; | |
645 | ||
30c40d2c | 646 | *bdevp = open_bdev_exclusive(name, FMODE_READ|FMODE_WRITE, mp); |
1da177e4 LT |
647 | if (IS_ERR(*bdevp)) { |
648 | error = PTR_ERR(*bdevp); | |
649 | printk("XFS: Invalid device [%s], error=%d\n", name, error); | |
650 | } | |
651 | ||
652 | return -error; | |
653 | } | |
654 | ||
655 | void | |
656 | xfs_blkdev_put( | |
657 | struct block_device *bdev) | |
658 | { | |
659 | if (bdev) | |
30c40d2c | 660 | close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE); |
1da177e4 LT |
661 | } |
662 | ||
f538d4da CH |
663 | /* |
664 | * Try to write out the superblock using barriers. | |
665 | */ | |
666 | STATIC int | |
667 | xfs_barrier_test( | |
668 | xfs_mount_t *mp) | |
669 | { | |
670 | xfs_buf_t *sbp = xfs_getsb(mp, 0); | |
671 | int error; | |
672 | ||
673 | XFS_BUF_UNDONE(sbp); | |
674 | XFS_BUF_UNREAD(sbp); | |
675 | XFS_BUF_UNDELAYWRITE(sbp); | |
676 | XFS_BUF_WRITE(sbp); | |
677 | XFS_BUF_UNASYNC(sbp); | |
678 | XFS_BUF_ORDERED(sbp); | |
679 | ||
680 | xfsbdstrat(mp, sbp); | |
681 | error = xfs_iowait(sbp); | |
682 | ||
683 | /* | |
684 | * Clear all the flags we set and possible error state in the | |
685 | * buffer. We only did the write to try out whether barriers | |
686 | * worked and shouldn't leave any traces in the superblock | |
687 | * buffer. | |
688 | */ | |
689 | XFS_BUF_DONE(sbp); | |
690 | XFS_BUF_ERROR(sbp, 0); | |
691 | XFS_BUF_UNORDERED(sbp); | |
692 | ||
693 | xfs_buf_relse(sbp); | |
694 | return error; | |
695 | } | |
696 | ||
697 | void | |
698 | xfs_mountfs_check_barriers(xfs_mount_t *mp) | |
699 | { | |
700 | int error; | |
701 | ||
702 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
703 | xfs_fs_cmn_err(CE_NOTE, mp, | |
704 | "Disabling barriers, not supported with external log device"); | |
705 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 706 | return; |
f538d4da CH |
707 | } |
708 | ||
b2ea401b NS |
709 | if (xfs_readonly_buftarg(mp->m_ddev_targp)) { |
710 | xfs_fs_cmn_err(CE_NOTE, mp, | |
711 | "Disabling barriers, underlying device is readonly"); | |
712 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
713 | return; | |
714 | } | |
715 | ||
f538d4da CH |
716 | error = xfs_barrier_test(mp); |
717 | if (error) { | |
718 | xfs_fs_cmn_err(CE_NOTE, mp, | |
719 | "Disabling barriers, trial barrier write failed"); | |
720 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 721 | return; |
f538d4da CH |
722 | } |
723 | } | |
724 | ||
725 | void | |
726 | xfs_blkdev_issue_flush( | |
727 | xfs_buftarg_t *buftarg) | |
728 | { | |
ce8e922c | 729 | blkdev_issue_flush(buftarg->bt_bdev, NULL); |
f538d4da | 730 | } |
1da177e4 | 731 | |
19f354d4 CH |
732 | STATIC void |
733 | xfs_close_devices( | |
734 | struct xfs_mount *mp) | |
735 | { | |
736 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
c032bfcf | 737 | struct block_device *logdev = mp->m_logdev_targp->bt_bdev; |
19f354d4 | 738 | xfs_free_buftarg(mp->m_logdev_targp); |
c032bfcf | 739 | xfs_blkdev_put(logdev); |
19f354d4 CH |
740 | } |
741 | if (mp->m_rtdev_targp) { | |
c032bfcf | 742 | struct block_device *rtdev = mp->m_rtdev_targp->bt_bdev; |
19f354d4 | 743 | xfs_free_buftarg(mp->m_rtdev_targp); |
c032bfcf | 744 | xfs_blkdev_put(rtdev); |
19f354d4 CH |
745 | } |
746 | xfs_free_buftarg(mp->m_ddev_targp); | |
747 | } | |
748 | ||
749 | /* | |
750 | * The file system configurations are: | |
751 | * (1) device (partition) with data and internal log | |
752 | * (2) logical volume with data and log subvolumes. | |
753 | * (3) logical volume with data, log, and realtime subvolumes. | |
754 | * | |
755 | * We only have to handle opening the log and realtime volumes here if | |
756 | * they are present. The data subvolume has already been opened by | |
757 | * get_sb_bdev() and is stored in sb->s_bdev. | |
758 | */ | |
759 | STATIC int | |
760 | xfs_open_devices( | |
9d565ffa | 761 | struct xfs_mount *mp) |
19f354d4 CH |
762 | { |
763 | struct block_device *ddev = mp->m_super->s_bdev; | |
764 | struct block_device *logdev = NULL, *rtdev = NULL; | |
765 | int error; | |
766 | ||
767 | /* | |
768 | * Open real time and log devices - order is important. | |
769 | */ | |
9d565ffa CH |
770 | if (mp->m_logname) { |
771 | error = xfs_blkdev_get(mp, mp->m_logname, &logdev); | |
19f354d4 CH |
772 | if (error) |
773 | goto out; | |
774 | } | |
775 | ||
9d565ffa CH |
776 | if (mp->m_rtname) { |
777 | error = xfs_blkdev_get(mp, mp->m_rtname, &rtdev); | |
19f354d4 CH |
778 | if (error) |
779 | goto out_close_logdev; | |
780 | ||
781 | if (rtdev == ddev || rtdev == logdev) { | |
782 | cmn_err(CE_WARN, | |
783 | "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev."); | |
784 | error = EINVAL; | |
785 | goto out_close_rtdev; | |
786 | } | |
787 | } | |
788 | ||
789 | /* | |
790 | * Setup xfs_mount buffer target pointers | |
791 | */ | |
792 | error = ENOMEM; | |
793 | mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0); | |
794 | if (!mp->m_ddev_targp) | |
795 | goto out_close_rtdev; | |
796 | ||
797 | if (rtdev) { | |
798 | mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1); | |
799 | if (!mp->m_rtdev_targp) | |
800 | goto out_free_ddev_targ; | |
801 | } | |
802 | ||
803 | if (logdev && logdev != ddev) { | |
804 | mp->m_logdev_targp = xfs_alloc_buftarg(logdev, 1); | |
805 | if (!mp->m_logdev_targp) | |
806 | goto out_free_rtdev_targ; | |
807 | } else { | |
808 | mp->m_logdev_targp = mp->m_ddev_targp; | |
809 | } | |
810 | ||
811 | return 0; | |
812 | ||
813 | out_free_rtdev_targ: | |
814 | if (mp->m_rtdev_targp) | |
815 | xfs_free_buftarg(mp->m_rtdev_targp); | |
816 | out_free_ddev_targ: | |
817 | xfs_free_buftarg(mp->m_ddev_targp); | |
818 | out_close_rtdev: | |
819 | if (rtdev) | |
820 | xfs_blkdev_put(rtdev); | |
821 | out_close_logdev: | |
822 | if (logdev && logdev != ddev) | |
823 | xfs_blkdev_put(logdev); | |
824 | out: | |
825 | return error; | |
826 | } | |
827 | ||
e34b562c CH |
828 | /* |
829 | * Setup xfs_mount buffer target pointers based on superblock | |
830 | */ | |
831 | STATIC int | |
832 | xfs_setup_devices( | |
833 | struct xfs_mount *mp) | |
834 | { | |
835 | int error; | |
19f354d4 | 836 | |
e34b562c CH |
837 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
838 | mp->m_sb.sb_sectsize); | |
839 | if (error) | |
840 | return error; | |
841 | ||
842 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
843 | unsigned int log_sector_size = BBSIZE; | |
844 | ||
845 | if (xfs_sb_version_hassector(&mp->m_sb)) | |
846 | log_sector_size = mp->m_sb.sb_logsectsize; | |
847 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | |
848 | mp->m_sb.sb_blocksize, | |
849 | log_sector_size); | |
850 | if (error) | |
851 | return error; | |
852 | } | |
853 | if (mp->m_rtdev_targp) { | |
854 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | |
855 | mp->m_sb.sb_blocksize, | |
856 | mp->m_sb.sb_sectsize); | |
857 | if (error) | |
858 | return error; | |
859 | } | |
860 | ||
861 | return 0; | |
862 | } | |
19f354d4 | 863 | |
249a8c11 DC |
864 | /* |
865 | * XFS AIL push thread support | |
866 | */ | |
867 | void | |
868 | xfsaild_wakeup( | |
82fa9012 | 869 | struct xfs_ail *ailp, |
249a8c11 DC |
870 | xfs_lsn_t threshold_lsn) |
871 | { | |
82fa9012 DC |
872 | ailp->xa_target = threshold_lsn; |
873 | wake_up_process(ailp->xa_task); | |
249a8c11 DC |
874 | } |
875 | ||
876 | int | |
877 | xfsaild( | |
878 | void *data) | |
879 | { | |
82fa9012 | 880 | struct xfs_ail *ailp = data; |
249a8c11 DC |
881 | xfs_lsn_t last_pushed_lsn = 0; |
882 | long tout = 0; | |
883 | ||
884 | while (!kthread_should_stop()) { | |
885 | if (tout) | |
886 | schedule_timeout_interruptible(msecs_to_jiffies(tout)); | |
887 | tout = 1000; | |
888 | ||
889 | /* swsusp */ | |
890 | try_to_freeze(); | |
891 | ||
82fa9012 DC |
892 | ASSERT(ailp->xa_mount->m_log); |
893 | if (XFS_FORCED_SHUTDOWN(ailp->xa_mount)) | |
249a8c11 DC |
894 | continue; |
895 | ||
82fa9012 | 896 | tout = xfsaild_push(ailp, &last_pushed_lsn); |
249a8c11 DC |
897 | } |
898 | ||
899 | return 0; | |
900 | } /* xfsaild */ | |
901 | ||
902 | int | |
903 | xfsaild_start( | |
82fa9012 | 904 | struct xfs_ail *ailp) |
249a8c11 | 905 | { |
82fa9012 DC |
906 | ailp->xa_target = 0; |
907 | ailp->xa_task = kthread_run(xfsaild, ailp, "xfsaild"); | |
908 | if (IS_ERR(ailp->xa_task)) | |
909 | return -PTR_ERR(ailp->xa_task); | |
249a8c11 DC |
910 | return 0; |
911 | } | |
912 | ||
913 | void | |
914 | xfsaild_stop( | |
82fa9012 | 915 | struct xfs_ail *ailp) |
249a8c11 | 916 | { |
82fa9012 | 917 | kthread_stop(ailp->xa_task); |
249a8c11 DC |
918 | } |
919 | ||
920 | ||
bf904248 | 921 | /* Catch misguided souls that try to use this interface on XFS */ |
1da177e4 | 922 | STATIC struct inode * |
a50cd269 | 923 | xfs_fs_alloc_inode( |
1da177e4 LT |
924 | struct super_block *sb) |
925 | { | |
bf904248 | 926 | BUG(); |
493dca61 | 927 | return NULL; |
1da177e4 LT |
928 | } |
929 | ||
bf904248 | 930 | /* |
99fa8cb3 DC |
931 | * Now that the generic code is guaranteed not to be accessing |
932 | * the linux inode, we can reclaim the inode. | |
bf904248 | 933 | */ |
1da177e4 | 934 | STATIC void |
a50cd269 | 935 | xfs_fs_destroy_inode( |
bf904248 | 936 | struct inode *inode) |
1da177e4 | 937 | { |
99fa8cb3 DC |
938 | xfs_inode_t *ip = XFS_I(inode); |
939 | ||
940 | XFS_STATS_INC(vn_reclaim); | |
941 | if (xfs_reclaim(ip)) | |
942 | panic("%s: cannot reclaim 0x%p\n", __func__, inode); | |
1da177e4 LT |
943 | } |
944 | ||
07c8f675 DC |
945 | /* |
946 | * Slab object creation initialisation for the XFS inode. | |
947 | * This covers only the idempotent fields in the XFS inode; | |
948 | * all other fields need to be initialised on allocation | |
949 | * from the slab. This avoids the need to repeatedly intialise | |
950 | * fields in the xfs inode that left in the initialise state | |
951 | * when freeing the inode. | |
952 | */ | |
bf904248 DC |
953 | STATIC void |
954 | xfs_fs_inode_init_once( | |
07c8f675 DC |
955 | void *inode) |
956 | { | |
957 | struct xfs_inode *ip = inode; | |
958 | ||
959 | memset(ip, 0, sizeof(struct xfs_inode)); | |
bf904248 DC |
960 | |
961 | /* vfs inode */ | |
962 | inode_init_once(VFS_I(ip)); | |
963 | ||
964 | /* xfs inode */ | |
07c8f675 DC |
965 | atomic_set(&ip->i_iocount, 0); |
966 | atomic_set(&ip->i_pincount, 0); | |
967 | spin_lock_init(&ip->i_flags_lock); | |
07c8f675 DC |
968 | init_waitqueue_head(&ip->i_ipin_wait); |
969 | /* | |
970 | * Because we want to use a counting completion, complete | |
971 | * the flush completion once to allow a single access to | |
972 | * the flush completion without blocking. | |
973 | */ | |
974 | init_completion(&ip->i_flush); | |
975 | complete(&ip->i_flush); | |
976 | ||
977 | mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER, | |
978 | "xfsino", ip->i_ino); | |
979 | mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino); | |
980 | } | |
981 | ||
1da177e4 LT |
982 | /* |
983 | * Attempt to flush the inode, this will actually fail | |
984 | * if the inode is pinned, but we dirty the inode again | |
985 | * at the point when it is unpinned after a log write, | |
8758280f | 986 | * since this is when the inode itself becomes flushable. |
1da177e4 LT |
987 | */ |
988 | STATIC int | |
a50cd269 | 989 | xfs_fs_write_inode( |
1da177e4 LT |
990 | struct inode *inode, |
991 | int sync) | |
992 | { | |
a3f74ffb DC |
993 | int error = 0; |
994 | int flags = 0; | |
1da177e4 | 995 | |
cf441eeb | 996 | xfs_itrace_entry(XFS_I(inode)); |
739bfb2a CH |
997 | if (sync) { |
998 | filemap_fdatawait(inode->i_mapping); | |
999 | flags |= FLUSH_SYNC; | |
1da177e4 | 1000 | } |
739bfb2a | 1001 | error = xfs_inode_flush(XFS_I(inode), flags); |
e893bffd LM |
1002 | /* |
1003 | * if we failed to write out the inode then mark | |
1004 | * it dirty again so we'll try again later. | |
1005 | */ | |
1006 | if (error) | |
94b97e39 | 1007 | xfs_mark_inode_dirty_sync(XFS_I(inode)); |
739bfb2a | 1008 | |
1da177e4 LT |
1009 | return -error; |
1010 | } | |
1011 | ||
1012 | STATIC void | |
a50cd269 | 1013 | xfs_fs_clear_inode( |
1da177e4 LT |
1014 | struct inode *inode) |
1015 | { | |
1543d79c | 1016 | xfs_inode_t *ip = XFS_I(inode); |
56d433e4 | 1017 | |
99fa8cb3 DC |
1018 | xfs_itrace_entry(ip); |
1019 | XFS_STATS_INC(vn_rele); | |
1020 | XFS_STATS_INC(vn_remove); | |
1021 | XFS_STATS_DEC(vn_active); | |
1022 | ||
1023 | xfs_inactive(ip); | |
1024 | xfs_iflags_clear(ip, XFS_IMODIFIED); | |
56d433e4 | 1025 | } |
1da177e4 | 1026 | |
a738159d CH |
1027 | STATIC void |
1028 | xfs_free_fsname( | |
1029 | struct xfs_mount *mp) | |
1030 | { | |
1031 | kfree(mp->m_fsname); | |
1032 | kfree(mp->m_rtname); | |
1033 | kfree(mp->m_logname); | |
1034 | } | |
1035 | ||
1da177e4 | 1036 | STATIC void |
a50cd269 | 1037 | xfs_fs_put_super( |
1da177e4 LT |
1038 | struct super_block *sb) |
1039 | { | |
745f6919 | 1040 | struct xfs_mount *mp = XFS_M(sb); |
e48ad316 CH |
1041 | struct xfs_inode *rip = mp->m_rootip; |
1042 | int unmount_event_flags = 0; | |
1da177e4 LT |
1043 | int error; |
1044 | ||
a167b17e | 1045 | xfs_syncd_stop(mp); |
be97d9d5 | 1046 | xfs_sync_inodes(mp, SYNC_ATTR|SYNC_DELWRI); |
e48ad316 CH |
1047 | |
1048 | #ifdef HAVE_DMAPI | |
1049 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1050 | unmount_event_flags = | |
1051 | (mp->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? | |
1052 | 0 : DM_FLAGS_UNWANTED; | |
1053 | /* | |
1054 | * Ignore error from dmapi here, first unmount is not allowed | |
1055 | * to fail anyway, and second we wouldn't want to fail a | |
1056 | * unmount because of dmapi. | |
1057 | */ | |
1058 | XFS_SEND_PREUNMOUNT(mp, rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL, | |
1059 | NULL, NULL, 0, 0, unmount_event_flags); | |
1060 | } | |
1061 | #endif | |
1062 | ||
1063 | /* | |
1064 | * Blow away any referenced inode in the filestreams cache. | |
1065 | * This can and will cause log traffic as inodes go inactive | |
1066 | * here. | |
1067 | */ | |
1068 | xfs_filestream_unmount(mp); | |
1069 | ||
1070 | XFS_bflush(mp->m_ddev_targp); | |
1071 | error = xfs_unmount_flush(mp, 0); | |
1072 | WARN_ON(error); | |
1073 | ||
e48ad316 CH |
1074 | if (mp->m_flags & XFS_MOUNT_DMAPI) { |
1075 | XFS_SEND_UNMOUNT(mp, rip, DM_RIGHT_NULL, 0, 0, | |
1076 | unmount_event_flags); | |
1077 | } | |
1078 | ||
19f354d4 | 1079 | xfs_unmountfs(mp); |
6203300e | 1080 | xfs_freesb(mp); |
c962fb79 | 1081 | xfs_icsb_destroy_counters(mp); |
19f354d4 | 1082 | xfs_close_devices(mp); |
e48ad316 CH |
1083 | xfs_qmops_put(mp); |
1084 | xfs_dmops_put(mp); | |
a738159d | 1085 | xfs_free_fsname(mp); |
c962fb79 | 1086 | kfree(mp); |
1da177e4 LT |
1087 | } |
1088 | ||
1089 | STATIC void | |
a50cd269 | 1090 | xfs_fs_write_super( |
1da177e4 LT |
1091 | struct super_block *sb) |
1092 | { | |
b83bd138 | 1093 | if (!(sb->s_flags & MS_RDONLY)) |
e9f1c6ee | 1094 | xfs_sync_fsdata(XFS_M(sb), 0); |
1da177e4 LT |
1095 | sb->s_dirt = 0; |
1096 | } | |
1097 | ||
1098 | STATIC int | |
a50cd269 | 1099 | xfs_fs_sync_super( |
1da177e4 LT |
1100 | struct super_block *sb, |
1101 | int wait) | |
1102 | { | |
745f6919 | 1103 | struct xfs_mount *mp = XFS_M(sb); |
b83bd138 | 1104 | int error; |
1da177e4 | 1105 | |
e893bffd LM |
1106 | /* |
1107 | * Treat a sync operation like a freeze. This is to work | |
1108 | * around a race in sync_inodes() which works in two phases | |
1109 | * - an asynchronous flush, which can write out an inode | |
1110 | * without waiting for file size updates to complete, and a | |
1111 | * synchronous flush, which wont do anything because the | |
1112 | * async flush removed the inode's dirty flag. Also | |
1113 | * sync_inodes() will not see any files that just have | |
1114 | * outstanding transactions to be flushed because we don't | |
1115 | * dirty the Linux inode until after the transaction I/O | |
1116 | * completes. | |
1117 | */ | |
e9f1c6ee DC |
1118 | if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) |
1119 | error = xfs_quiesce_data(mp); | |
1120 | else | |
1121 | error = xfs_sync_fsdata(mp, 0); | |
1da177e4 LT |
1122 | sb->s_dirt = 0; |
1123 | ||
1124 | if (unlikely(laptop_mode)) { | |
74394496 | 1125 | int prev_sync_seq = mp->m_sync_seq; |
1da177e4 LT |
1126 | |
1127 | /* | |
1128 | * The disk must be active because we're syncing. | |
1129 | * We schedule xfssyncd now (now that the disk is | |
1130 | * active) instead of later (when it might not be). | |
1131 | */ | |
74394496 | 1132 | wake_up_process(mp->m_sync_task); |
1da177e4 LT |
1133 | /* |
1134 | * We have to wait for the sync iteration to complete. | |
1135 | * If we don't, the disk activity caused by the sync | |
1136 | * will come after the sync is completed, and that | |
1137 | * triggers another sync from laptop mode. | |
1138 | */ | |
74394496 CH |
1139 | wait_event(mp->m_wait_single_sync_task, |
1140 | mp->m_sync_seq != prev_sync_seq); | |
1da177e4 LT |
1141 | } |
1142 | ||
1143 | return -error; | |
1144 | } | |
1145 | ||
1146 | STATIC int | |
a50cd269 | 1147 | xfs_fs_statfs( |
726c3342 | 1148 | struct dentry *dentry, |
1da177e4 LT |
1149 | struct kstatfs *statp) |
1150 | { | |
4ca488eb CH |
1151 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
1152 | xfs_sb_t *sbp = &mp->m_sb; | |
1153 | __uint64_t fakeinos, id; | |
1154 | xfs_extlen_t lsize; | |
1155 | ||
1156 | statp->f_type = XFS_SB_MAGIC; | |
1157 | statp->f_namelen = MAXNAMELEN - 1; | |
1158 | ||
1159 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); | |
1160 | statp->f_fsid.val[0] = (u32)id; | |
1161 | statp->f_fsid.val[1] = (u32)(id >> 32); | |
1162 | ||
d4d90b57 | 1163 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
4ca488eb CH |
1164 | |
1165 | spin_lock(&mp->m_sb_lock); | |
1166 | statp->f_bsize = sbp->sb_blocksize; | |
1167 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; | |
1168 | statp->f_blocks = sbp->sb_dblocks - lsize; | |
1169 | statp->f_bfree = statp->f_bavail = | |
1170 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); | |
1171 | fakeinos = statp->f_bfree << sbp->sb_inopblog; | |
1172 | #if XFS_BIG_INUMS | |
1173 | fakeinos += mp->m_inoadd; | |
1174 | #endif | |
1175 | statp->f_files = | |
1176 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); | |
1177 | if (mp->m_maxicount) | |
1178 | #if XFS_BIG_INUMS | |
1179 | if (!mp->m_inoadd) | |
1180 | #endif | |
1181 | statp->f_files = min_t(typeof(statp->f_files), | |
1182 | statp->f_files, | |
1183 | mp->m_maxicount); | |
1184 | statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); | |
1185 | spin_unlock(&mp->m_sb_lock); | |
1186 | ||
1187 | XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp); | |
1188 | return 0; | |
1da177e4 LT |
1189 | } |
1190 | ||
1191 | STATIC int | |
a50cd269 | 1192 | xfs_fs_remount( |
1da177e4 LT |
1193 | struct super_block *sb, |
1194 | int *flags, | |
1195 | char *options) | |
1196 | { | |
745f6919 | 1197 | struct xfs_mount *mp = XFS_M(sb); |
62a877e3 CH |
1198 | substring_t args[MAX_OPT_ARGS]; |
1199 | char *p; | |
1da177e4 | 1200 | |
62a877e3 CH |
1201 | while ((p = strsep(&options, ",")) != NULL) { |
1202 | int token; | |
bdd907ba | 1203 | |
62a877e3 CH |
1204 | if (!*p) |
1205 | continue; | |
48b62a1a | 1206 | |
62a877e3 CH |
1207 | token = match_token(p, tokens, args); |
1208 | switch (token) { | |
1209 | case Opt_barrier: | |
48b62a1a | 1210 | mp->m_flags |= XFS_MOUNT_BARRIER; |
62a877e3 CH |
1211 | |
1212 | /* | |
1213 | * Test if barriers are actually working if we can, | |
1214 | * else delay this check until the filesystem is | |
1215 | * marked writeable. | |
1216 | */ | |
1217 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) | |
1218 | xfs_mountfs_check_barriers(mp); | |
1219 | break; | |
1220 | case Opt_nobarrier: | |
48b62a1a | 1221 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
62a877e3 CH |
1222 | break; |
1223 | default: | |
6efdf281 CH |
1224 | /* |
1225 | * Logically we would return an error here to prevent | |
1226 | * users from believing they might have changed | |
1227 | * mount options using remount which can't be changed. | |
1228 | * | |
1229 | * But unfortunately mount(8) adds all options from | |
1230 | * mtab and fstab to the mount arguments in some cases | |
1231 | * so we can't blindly reject options, but have to | |
1232 | * check for each specified option if it actually | |
1233 | * differs from the currently set option and only | |
1234 | * reject it if that's the case. | |
1235 | * | |
1236 | * Until that is implemented we return success for | |
1237 | * every remount request, and silently ignore all | |
1238 | * options that we can't actually change. | |
1239 | */ | |
1240 | #if 0 | |
62a877e3 CH |
1241 | printk(KERN_INFO |
1242 | "XFS: mount option \"%s\" not supported for remount\n", p); | |
1243 | return -EINVAL; | |
6efdf281 | 1244 | #else |
6c5e51da | 1245 | break; |
6efdf281 | 1246 | #endif |
48b62a1a | 1247 | } |
62a877e3 CH |
1248 | } |
1249 | ||
1250 | /* rw/ro -> rw */ | |
1251 | if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(*flags & MS_RDONLY)) { | |
1252 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | |
1253 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1254 | xfs_mountfs_check_barriers(mp); | |
1255 | } | |
1256 | ||
1257 | /* rw -> ro */ | |
1258 | if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (*flags & MS_RDONLY)) { | |
e9f1c6ee | 1259 | xfs_quiesce_data(mp); |
76bf105c | 1260 | xfs_quiesce_attr(mp); |
48b62a1a CH |
1261 | mp->m_flags |= XFS_MOUNT_RDONLY; |
1262 | } | |
1263 | ||
62a877e3 | 1264 | return 0; |
1da177e4 LT |
1265 | } |
1266 | ||
9909c4aa CH |
1267 | /* |
1268 | * Second stage of a freeze. The data is already frozen so we only | |
76bf105c | 1269 | * need to take care of the metadata. Once that's done write a dummy |
9909c4aa CH |
1270 | * record to dirty the log in case of a crash while frozen. |
1271 | */ | |
1da177e4 | 1272 | STATIC void |
a50cd269 | 1273 | xfs_fs_lockfs( |
1da177e4 LT |
1274 | struct super_block *sb) |
1275 | { | |
9909c4aa CH |
1276 | struct xfs_mount *mp = XFS_M(sb); |
1277 | ||
76bf105c | 1278 | xfs_quiesce_attr(mp); |
9909c4aa | 1279 | xfs_fs_log_dummy(mp); |
1da177e4 LT |
1280 | } |
1281 | ||
1282 | STATIC int | |
a50cd269 | 1283 | xfs_fs_show_options( |
1da177e4 LT |
1284 | struct seq_file *m, |
1285 | struct vfsmount *mnt) | |
1286 | { | |
745f6919 | 1287 | return -xfs_showargs(XFS_M(mnt->mnt_sb), m); |
1da177e4 LT |
1288 | } |
1289 | ||
ee34807a | 1290 | STATIC int |
a50cd269 | 1291 | xfs_fs_quotasync( |
ee34807a NS |
1292 | struct super_block *sb, |
1293 | int type) | |
1294 | { | |
b09cc771 | 1295 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL); |
ee34807a NS |
1296 | } |
1297 | ||
1da177e4 | 1298 | STATIC int |
a50cd269 | 1299 | xfs_fs_getxstate( |
1da177e4 LT |
1300 | struct super_block *sb, |
1301 | struct fs_quota_stat *fqs) | |
1302 | { | |
b09cc771 | 1303 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs); |
1da177e4 LT |
1304 | } |
1305 | ||
1306 | STATIC int | |
a50cd269 | 1307 | xfs_fs_setxstate( |
1da177e4 LT |
1308 | struct super_block *sb, |
1309 | unsigned int flags, | |
1310 | int op) | |
1311 | { | |
b09cc771 | 1312 | return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags); |
1da177e4 LT |
1313 | } |
1314 | ||
1315 | STATIC int | |
a50cd269 | 1316 | xfs_fs_getxquota( |
1da177e4 LT |
1317 | struct super_block *sb, |
1318 | int type, | |
1319 | qid_t id, | |
1320 | struct fs_disk_quota *fdq) | |
1321 | { | |
b09cc771 | 1322 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1323 | (type == USRQUOTA) ? Q_XGETQUOTA : |
1324 | ((type == GRPQUOTA) ? Q_XGETGQUOTA : | |
1325 | Q_XGETPQUOTA), id, (caddr_t)fdq); | |
1da177e4 LT |
1326 | } |
1327 | ||
1328 | STATIC int | |
a50cd269 | 1329 | xfs_fs_setxquota( |
1da177e4 LT |
1330 | struct super_block *sb, |
1331 | int type, | |
1332 | qid_t id, | |
1333 | struct fs_disk_quota *fdq) | |
1334 | { | |
b09cc771 | 1335 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1336 | (type == USRQUOTA) ? Q_XSETQLIM : |
1337 | ((type == GRPQUOTA) ? Q_XSETGQLIM : | |
1338 | Q_XSETPQLIM), id, (caddr_t)fdq); | |
1da177e4 LT |
1339 | } |
1340 | ||
f8f15e42 CH |
1341 | /* |
1342 | * This function fills in xfs_mount_t fields based on mount args. | |
1343 | * Note: the superblock _has_ now been read in. | |
1344 | */ | |
1345 | STATIC int | |
1346 | xfs_finish_flags( | |
f8f15e42 CH |
1347 | struct xfs_mount *mp) |
1348 | { | |
1349 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | |
1350 | ||
1351 | /* Fail a mount where the logbuf is smaller then the log stripe */ | |
1352 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { | |
9d565ffa CH |
1353 | if (mp->m_logbsize <= 0 && |
1354 | mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE) { | |
f8f15e42 | 1355 | mp->m_logbsize = mp->m_sb.sb_logsunit; |
9d565ffa CH |
1356 | } else if (mp->m_logbsize > 0 && |
1357 | mp->m_logbsize < mp->m_sb.sb_logsunit) { | |
f8f15e42 CH |
1358 | cmn_err(CE_WARN, |
1359 | "XFS: logbuf size must be greater than or equal to log stripe size"); | |
1360 | return XFS_ERROR(EINVAL); | |
1361 | } | |
1362 | } else { | |
1363 | /* Fail a mount if the logbuf is larger than 32K */ | |
9d565ffa | 1364 | if (mp->m_logbsize > XLOG_BIG_RECORD_BSIZE) { |
f8f15e42 CH |
1365 | cmn_err(CE_WARN, |
1366 | "XFS: logbuf size for version 1 logs must be 16K or 32K"); | |
1367 | return XFS_ERROR(EINVAL); | |
1368 | } | |
1369 | } | |
1370 | ||
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) { | |
1383 | cmn_err(CE_WARN, | |
1384 | "XFS: cannot mount a read-only filesystem as read-write"); | |
1385 | return XFS_ERROR(EROFS); | |
1386 | } | |
1387 | ||
9d565ffa | 1388 | #if 0 /* shared mounts were never supported on Linux */ |
f8f15e42 CH |
1389 | /* |
1390 | * check for shared mount. | |
1391 | */ | |
1392 | if (ap->flags & XFSMNT_SHARED) { | |
1393 | if (!xfs_sb_version_hasshared(&mp->m_sb)) | |
1394 | return XFS_ERROR(EINVAL); | |
1395 | ||
1396 | /* | |
1397 | * For IRIX 6.5, shared mounts must have the shared | |
1398 | * version bit set, have the persistent readonly | |
1399 | * field set, must be version 0 and can only be mounted | |
1400 | * read-only. | |
1401 | */ | |
1402 | if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) || | |
1403 | (mp->m_sb.sb_shared_vn != 0)) | |
1404 | return XFS_ERROR(EINVAL); | |
1405 | ||
1406 | mp->m_flags |= XFS_MOUNT_SHARED; | |
1407 | ||
1408 | /* | |
1409 | * Shared XFS V0 can't deal with DMI. Return EINVAL. | |
1410 | */ | |
9d565ffa CH |
1411 | if (mp->m_sb.sb_shared_vn == 0 && |
1412 | (mp->m_flags & XFS_MOUNT_DMAPI)) | |
f8f15e42 CH |
1413 | return XFS_ERROR(EINVAL); |
1414 | } | |
9d565ffa | 1415 | #endif |
f8f15e42 CH |
1416 | |
1417 | return 0; | |
1418 | } | |
1419 | ||
1da177e4 | 1420 | STATIC int |
a50cd269 | 1421 | xfs_fs_fill_super( |
1da177e4 LT |
1422 | struct super_block *sb, |
1423 | void *data, | |
1424 | int silent) | |
1425 | { | |
f3dcc13f | 1426 | struct inode *root; |
745f6919 | 1427 | struct xfs_mount *mp = NULL; |
c962fb79 | 1428 | int flags = 0, error = ENOMEM; |
9d565ffa | 1429 | char *mtpt = NULL; |
bdd907ba | 1430 | |
c962fb79 CH |
1431 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
1432 | if (!mp) | |
9d565ffa | 1433 | goto out; |
1da177e4 | 1434 | |
c962fb79 | 1435 | spin_lock_init(&mp->m_sb_lock); |
c962fb79 CH |
1436 | mutex_init(&mp->m_growlock); |
1437 | atomic_set(&mp->m_active_trans, 0); | |
74394496 CH |
1438 | INIT_LIST_HEAD(&mp->m_sync_list); |
1439 | spin_lock_init(&mp->m_sync_lock); | |
1440 | init_waitqueue_head(&mp->m_wait_single_sync_task); | |
1441 | ||
b267ce99 CH |
1442 | mp->m_super = sb; |
1443 | sb->s_fs_info = mp; | |
1da177e4 | 1444 | |
9d565ffa | 1445 | error = xfs_parseargs(mp, (char *)data, &mtpt); |
745f6919 | 1446 | if (error) |
9d565ffa | 1447 | goto out_free_fsname; |
1da177e4 LT |
1448 | |
1449 | sb_min_blocksize(sb, BBSIZE); | |
0ec58516 | 1450 | sb->s_xattr = xfs_xattr_handlers; |
a50cd269 | 1451 | sb->s_export_op = &xfs_export_operations; |
a50cd269 NS |
1452 | sb->s_qcop = &xfs_quotactl_operations; |
1453 | sb->s_op = &xfs_super_operations; | |
1da177e4 | 1454 | |
9d565ffa | 1455 | error = xfs_dmops_get(mp); |
f8f15e42 | 1456 | if (error) |
9d565ffa CH |
1457 | goto out_free_fsname; |
1458 | error = xfs_qmops_get(mp); | |
745f6919 | 1459 | if (error) |
19f354d4 | 1460 | goto out_put_dmops; |
1da177e4 | 1461 | |
9d565ffa | 1462 | if (silent) |
f8f15e42 CH |
1463 | flags |= XFS_MFSI_QUIET; |
1464 | ||
9d565ffa | 1465 | error = xfs_open_devices(mp); |
19f354d4 CH |
1466 | if (error) |
1467 | goto out_put_qmops; | |
f8f15e42 | 1468 | |
c962fb79 CH |
1469 | if (xfs_icsb_init_counters(mp)) |
1470 | mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB; | |
1471 | ||
f8f15e42 CH |
1472 | error = xfs_readsb(mp, flags); |
1473 | if (error) | |
9d565ffa CH |
1474 | goto out_destroy_counters; |
1475 | ||
1476 | error = xfs_finish_flags(mp); | |
f8f15e42 | 1477 | if (error) |
effa2eda | 1478 | goto out_free_sb; |
f8f15e42 | 1479 | |
e34b562c | 1480 | error = xfs_setup_devices(mp); |
19f354d4 | 1481 | if (error) |
effa2eda | 1482 | goto out_free_sb; |
f8f15e42 CH |
1483 | |
1484 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1485 | xfs_mountfs_check_barriers(mp); | |
1486 | ||
1487 | error = xfs_filestream_mount(mp); | |
1488 | if (error) | |
effa2eda | 1489 | goto out_free_sb; |
f8f15e42 | 1490 | |
4249023a | 1491 | error = xfs_mountfs(mp); |
f8f15e42 | 1492 | if (error) |
120226c1 | 1493 | goto out_filestream_unmount; |
f8f15e42 | 1494 | |
9d565ffa | 1495 | XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, mtpt, mp->m_fsname); |
f8f15e42 | 1496 | |
1da177e4 | 1497 | sb->s_dirt = 1; |
4ca488eb CH |
1498 | sb->s_magic = XFS_SB_MAGIC; |
1499 | sb->s_blocksize = mp->m_sb.sb_blocksize; | |
1500 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; | |
1da177e4 LT |
1501 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
1502 | sb->s_time_gran = 1; | |
1503 | set_posix_acl_flag(sb); | |
1504 | ||
01651646 | 1505 | root = igrab(VFS_I(mp->m_rootip)); |
f3dcc13f | 1506 | if (!root) { |
cbc89dcf | 1507 | error = ENOENT; |
1da177e4 | 1508 | goto fail_unmount; |
cbc89dcf | 1509 | } |
f3dcc13f CH |
1510 | if (is_bad_inode(root)) { |
1511 | error = EINVAL; | |
1da177e4 LT |
1512 | goto fail_vnrele; |
1513 | } | |
f3dcc13f CH |
1514 | sb->s_root = d_alloc_root(root); |
1515 | if (!sb->s_root) { | |
1516 | error = ENOMEM; | |
1da177e4 LT |
1517 | goto fail_vnrele; |
1518 | } | |
74394496 | 1519 | |
a167b17e DC |
1520 | error = xfs_syncd_init(mp); |
1521 | if (error) | |
1da177e4 | 1522 | goto fail_vnrele; |
74394496 | 1523 | |
9d565ffa | 1524 | kfree(mtpt); |
1da177e4 | 1525 | |
9d565ffa | 1526 | xfs_itrace_exit(XFS_I(sb->s_root->d_inode)); |
1da177e4 LT |
1527 | return 0; |
1528 | ||
120226c1 CH |
1529 | out_filestream_unmount: |
1530 | xfs_filestream_unmount(mp); | |
effa2eda CH |
1531 | out_free_sb: |
1532 | xfs_freesb(mp); | |
9d565ffa | 1533 | out_destroy_counters: |
c962fb79 | 1534 | xfs_icsb_destroy_counters(mp); |
19f354d4 CH |
1535 | xfs_close_devices(mp); |
1536 | out_put_qmops: | |
f8f15e42 | 1537 | xfs_qmops_put(mp); |
19f354d4 | 1538 | out_put_dmops: |
f8f15e42 | 1539 | xfs_dmops_put(mp); |
9d565ffa CH |
1540 | out_free_fsname: |
1541 | xfs_free_fsname(mp); | |
1542 | kfree(mtpt); | |
c962fb79 | 1543 | kfree(mp); |
9d565ffa | 1544 | out: |
c962fb79 | 1545 | return -error; |
f8f15e42 CH |
1546 | |
1547 | fail_vnrele: | |
1da177e4 LT |
1548 | if (sb->s_root) { |
1549 | dput(sb->s_root); | |
1550 | sb->s_root = NULL; | |
1551 | } else { | |
f3dcc13f | 1552 | iput(root); |
1da177e4 LT |
1553 | } |
1554 | ||
f8f15e42 | 1555 | fail_unmount: |
e48ad316 CH |
1556 | /* |
1557 | * Blow away any referenced inode in the filestreams cache. | |
1558 | * This can and will cause log traffic as inodes go inactive | |
1559 | * here. | |
1560 | */ | |
1561 | xfs_filestream_unmount(mp); | |
1562 | ||
1563 | XFS_bflush(mp->m_ddev_targp); | |
1564 | error = xfs_unmount_flush(mp, 0); | |
1565 | WARN_ON(error); | |
1566 | ||
19f354d4 | 1567 | xfs_unmountfs(mp); |
6203300e | 1568 | goto out_free_sb; |
1da177e4 LT |
1569 | } |
1570 | ||
454e2398 | 1571 | STATIC int |
a50cd269 | 1572 | xfs_fs_get_sb( |
1da177e4 LT |
1573 | struct file_system_type *fs_type, |
1574 | int flags, | |
1575 | const char *dev_name, | |
454e2398 DH |
1576 | void *data, |
1577 | struct vfsmount *mnt) | |
1da177e4 | 1578 | { |
454e2398 DH |
1579 | return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super, |
1580 | mnt); | |
a50cd269 NS |
1581 | } |
1582 | ||
7989cb8e | 1583 | static struct super_operations xfs_super_operations = { |
a50cd269 NS |
1584 | .alloc_inode = xfs_fs_alloc_inode, |
1585 | .destroy_inode = xfs_fs_destroy_inode, | |
1586 | .write_inode = xfs_fs_write_inode, | |
1587 | .clear_inode = xfs_fs_clear_inode, | |
1588 | .put_super = xfs_fs_put_super, | |
1589 | .write_super = xfs_fs_write_super, | |
1590 | .sync_fs = xfs_fs_sync_super, | |
1591 | .write_super_lockfs = xfs_fs_lockfs, | |
1592 | .statfs = xfs_fs_statfs, | |
1593 | .remount_fs = xfs_fs_remount, | |
1594 | .show_options = xfs_fs_show_options, | |
1da177e4 LT |
1595 | }; |
1596 | ||
7989cb8e | 1597 | static struct quotactl_ops xfs_quotactl_operations = { |
a50cd269 NS |
1598 | .quota_sync = xfs_fs_quotasync, |
1599 | .get_xstate = xfs_fs_getxstate, | |
1600 | .set_xstate = xfs_fs_setxstate, | |
1601 | .get_xquota = xfs_fs_getxquota, | |
1602 | .set_xquota = xfs_fs_setxquota, | |
1da177e4 LT |
1603 | }; |
1604 | ||
5085b607 | 1605 | static struct file_system_type xfs_fs_type = { |
1da177e4 LT |
1606 | .owner = THIS_MODULE, |
1607 | .name = "xfs", | |
a50cd269 | 1608 | .get_sb = xfs_fs_get_sb, |
1da177e4 LT |
1609 | .kill_sb = kill_block_super, |
1610 | .fs_flags = FS_REQUIRES_DEV, | |
1611 | }; | |
1612 | ||
9f8868ff CH |
1613 | STATIC int __init |
1614 | xfs_alloc_trace_bufs(void) | |
1615 | { | |
1616 | #ifdef XFS_ALLOC_TRACE | |
1617 | xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_MAYFAIL); | |
1618 | if (!xfs_alloc_trace_buf) | |
1619 | goto out; | |
1620 | #endif | |
1621 | #ifdef XFS_BMAP_TRACE | |
1622 | xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_MAYFAIL); | |
1623 | if (!xfs_bmap_trace_buf) | |
1624 | goto out_free_alloc_trace; | |
1625 | #endif | |
8c4ed633 CH |
1626 | #ifdef XFS_BTREE_TRACE |
1627 | xfs_allocbt_trace_buf = ktrace_alloc(XFS_ALLOCBT_TRACE_SIZE, | |
1628 | KM_MAYFAIL); | |
1629 | if (!xfs_allocbt_trace_buf) | |
1630 | goto out_free_bmap_trace; | |
1631 | ||
1632 | xfs_inobt_trace_buf = ktrace_alloc(XFS_INOBT_TRACE_SIZE, KM_MAYFAIL); | |
1633 | if (!xfs_inobt_trace_buf) | |
1634 | goto out_free_allocbt_trace; | |
1635 | ||
9f8868ff CH |
1636 | xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_MAYFAIL); |
1637 | if (!xfs_bmbt_trace_buf) | |
8c4ed633 | 1638 | goto out_free_inobt_trace; |
9f8868ff CH |
1639 | #endif |
1640 | #ifdef XFS_ATTR_TRACE | |
1641 | xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_MAYFAIL); | |
1642 | if (!xfs_attr_trace_buf) | |
1643 | goto out_free_bmbt_trace; | |
1644 | #endif | |
1645 | #ifdef XFS_DIR2_TRACE | |
1646 | xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_MAYFAIL); | |
1647 | if (!xfs_dir2_trace_buf) | |
1648 | goto out_free_attr_trace; | |
1649 | #endif | |
1650 | ||
1651 | return 0; | |
1652 | ||
1653 | #ifdef XFS_DIR2_TRACE | |
1654 | out_free_attr_trace: | |
1655 | #endif | |
1656 | #ifdef XFS_ATTR_TRACE | |
1657 | ktrace_free(xfs_attr_trace_buf); | |
1658 | out_free_bmbt_trace: | |
1659 | #endif | |
8c4ed633 | 1660 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1661 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1662 | out_free_inobt_trace: |
1663 | ktrace_free(xfs_inobt_trace_buf); | |
1664 | out_free_allocbt_trace: | |
1665 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1666 | out_free_bmap_trace: |
1667 | #endif | |
1668 | #ifdef XFS_BMAP_TRACE | |
1669 | ktrace_free(xfs_bmap_trace_buf); | |
1670 | out_free_alloc_trace: | |
1671 | #endif | |
1672 | #ifdef XFS_ALLOC_TRACE | |
1673 | ktrace_free(xfs_alloc_trace_buf); | |
1674 | out: | |
1675 | #endif | |
1676 | return -ENOMEM; | |
1677 | } | |
1678 | ||
1679 | STATIC void | |
1680 | xfs_free_trace_bufs(void) | |
1681 | { | |
1682 | #ifdef XFS_DIR2_TRACE | |
1683 | ktrace_free(xfs_dir2_trace_buf); | |
1684 | #endif | |
1685 | #ifdef XFS_ATTR_TRACE | |
1686 | ktrace_free(xfs_attr_trace_buf); | |
1687 | #endif | |
8c4ed633 | 1688 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1689 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1690 | ktrace_free(xfs_inobt_trace_buf); |
1691 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1692 | #endif |
1693 | #ifdef XFS_BMAP_TRACE | |
1694 | ktrace_free(xfs_bmap_trace_buf); | |
1695 | #endif | |
1696 | #ifdef XFS_ALLOC_TRACE | |
1697 | ktrace_free(xfs_alloc_trace_buf); | |
1698 | #endif | |
1699 | } | |
1700 | ||
1701 | STATIC int __init | |
1702 | xfs_init_zones(void) | |
1703 | { | |
9f8868ff CH |
1704 | |
1705 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); | |
1706 | if (!xfs_ioend_zone) | |
bf904248 | 1707 | goto out; |
9f8868ff CH |
1708 | |
1709 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, | |
1710 | xfs_ioend_zone); | |
1711 | if (!xfs_ioend_pool) | |
1712 | goto out_destroy_ioend_zone; | |
1713 | ||
1714 | xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t), | |
1715 | "xfs_log_ticket"); | |
1716 | if (!xfs_log_ticket_zone) | |
1717 | goto out_destroy_ioend_pool; | |
1718 | ||
1719 | xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t), | |
1720 | "xfs_bmap_free_item"); | |
1721 | if (!xfs_bmap_free_item_zone) | |
1722 | goto out_destroy_log_ticket_zone; | |
bf904248 | 1723 | |
9f8868ff CH |
1724 | xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t), |
1725 | "xfs_btree_cur"); | |
1726 | if (!xfs_btree_cur_zone) | |
1727 | goto out_destroy_bmap_free_item_zone; | |
1728 | ||
1729 | xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t), | |
1730 | "xfs_da_state"); | |
1731 | if (!xfs_da_state_zone) | |
1732 | goto out_destroy_btree_cur_zone; | |
1733 | ||
1734 | xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf"); | |
1735 | if (!xfs_dabuf_zone) | |
1736 | goto out_destroy_da_state_zone; | |
1737 | ||
1738 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); | |
1739 | if (!xfs_ifork_zone) | |
1740 | goto out_destroy_dabuf_zone; | |
1741 | ||
1742 | xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans"); | |
1743 | if (!xfs_trans_zone) | |
1744 | goto out_destroy_ifork_zone; | |
1745 | ||
1746 | /* | |
1747 | * The size of the zone allocated buf log item is the maximum | |
1748 | * size possible under XFS. This wastes a little bit of memory, | |
1749 | * but it is much faster. | |
1750 | */ | |
1751 | xfs_buf_item_zone = kmem_zone_init((sizeof(xfs_buf_log_item_t) + | |
1752 | (((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) / | |
1753 | NBWORD) * sizeof(int))), "xfs_buf_item"); | |
1754 | if (!xfs_buf_item_zone) | |
1755 | goto out_destroy_trans_zone; | |
1756 | ||
1757 | xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) + | |
1758 | ((XFS_EFD_MAX_FAST_EXTENTS - 1) * | |
1759 | sizeof(xfs_extent_t))), "xfs_efd_item"); | |
1760 | if (!xfs_efd_zone) | |
1761 | goto out_destroy_buf_item_zone; | |
1762 | ||
1763 | xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) + | |
1764 | ((XFS_EFI_MAX_FAST_EXTENTS - 1) * | |
1765 | sizeof(xfs_extent_t))), "xfs_efi_item"); | |
1766 | if (!xfs_efi_zone) | |
1767 | goto out_destroy_efd_zone; | |
1768 | ||
1769 | xfs_inode_zone = | |
1770 | kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode", | |
bf904248 DC |
1771 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | KM_ZONE_SPREAD, |
1772 | xfs_fs_inode_init_once); | |
9f8868ff CH |
1773 | if (!xfs_inode_zone) |
1774 | goto out_destroy_efi_zone; | |
1775 | ||
1776 | xfs_ili_zone = | |
1777 | kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili", | |
1778 | KM_ZONE_SPREAD, NULL); | |
1779 | if (!xfs_ili_zone) | |
1780 | goto out_destroy_inode_zone; | |
1781 | ||
1782 | #ifdef CONFIG_XFS_POSIX_ACL | |
1783 | xfs_acl_zone = kmem_zone_init(sizeof(xfs_acl_t), "xfs_acl"); | |
1784 | if (!xfs_acl_zone) | |
1785 | goto out_destroy_ili_zone; | |
1786 | #endif | |
1787 | ||
1788 | return 0; | |
1789 | ||
1790 | #ifdef CONFIG_XFS_POSIX_ACL | |
1791 | out_destroy_ili_zone: | |
1792 | #endif | |
1793 | kmem_zone_destroy(xfs_ili_zone); | |
1794 | out_destroy_inode_zone: | |
1795 | kmem_zone_destroy(xfs_inode_zone); | |
1796 | out_destroy_efi_zone: | |
1797 | kmem_zone_destroy(xfs_efi_zone); | |
1798 | out_destroy_efd_zone: | |
1799 | kmem_zone_destroy(xfs_efd_zone); | |
1800 | out_destroy_buf_item_zone: | |
1801 | kmem_zone_destroy(xfs_buf_item_zone); | |
1802 | out_destroy_trans_zone: | |
1803 | kmem_zone_destroy(xfs_trans_zone); | |
1804 | out_destroy_ifork_zone: | |
1805 | kmem_zone_destroy(xfs_ifork_zone); | |
1806 | out_destroy_dabuf_zone: | |
1807 | kmem_zone_destroy(xfs_dabuf_zone); | |
1808 | out_destroy_da_state_zone: | |
1809 | kmem_zone_destroy(xfs_da_state_zone); | |
1810 | out_destroy_btree_cur_zone: | |
1811 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1812 | out_destroy_bmap_free_item_zone: | |
1813 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1814 | out_destroy_log_ticket_zone: | |
1815 | kmem_zone_destroy(xfs_log_ticket_zone); | |
1816 | out_destroy_ioend_pool: | |
1817 | mempool_destroy(xfs_ioend_pool); | |
1818 | out_destroy_ioend_zone: | |
1819 | kmem_zone_destroy(xfs_ioend_zone); | |
9f8868ff CH |
1820 | out: |
1821 | return -ENOMEM; | |
1822 | } | |
1823 | ||
1824 | STATIC void | |
1825 | xfs_destroy_zones(void) | |
1826 | { | |
1827 | #ifdef CONFIG_XFS_POSIX_ACL | |
1828 | kmem_zone_destroy(xfs_acl_zone); | |
1829 | #endif | |
1830 | kmem_zone_destroy(xfs_ili_zone); | |
1831 | kmem_zone_destroy(xfs_inode_zone); | |
1832 | kmem_zone_destroy(xfs_efi_zone); | |
1833 | kmem_zone_destroy(xfs_efd_zone); | |
1834 | kmem_zone_destroy(xfs_buf_item_zone); | |
1835 | kmem_zone_destroy(xfs_trans_zone); | |
1836 | kmem_zone_destroy(xfs_ifork_zone); | |
1837 | kmem_zone_destroy(xfs_dabuf_zone); | |
1838 | kmem_zone_destroy(xfs_da_state_zone); | |
1839 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1840 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1841 | kmem_zone_destroy(xfs_log_ticket_zone); | |
1842 | mempool_destroy(xfs_ioend_pool); | |
1843 | kmem_zone_destroy(xfs_ioend_zone); | |
9f8868ff CH |
1844 | |
1845 | } | |
1da177e4 LT |
1846 | |
1847 | STATIC int __init | |
9f8868ff | 1848 | init_xfs_fs(void) |
1da177e4 LT |
1849 | { |
1850 | int error; | |
1da177e4 LT |
1851 | static char message[] __initdata = KERN_INFO \ |
1852 | XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n"; | |
1853 | ||
1854 | printk(message); | |
1855 | ||
1da177e4 | 1856 | ktrace_init(64); |
9f8868ff CH |
1857 | vn_init(); |
1858 | xfs_dir_startup(); | |
1da177e4 | 1859 | |
8758280f | 1860 | error = xfs_init_zones(); |
9f8868ff CH |
1861 | if (error) |
1862 | goto out; | |
1863 | ||
1864 | error = xfs_alloc_trace_bufs(); | |
1865 | if (error) | |
1866 | goto out_destroy_zones; | |
1867 | ||
1868 | error = xfs_mru_cache_init(); | |
1869 | if (error) | |
1870 | goto out_free_trace_buffers; | |
1871 | ||
1872 | error = xfs_filestream_init(); | |
1873 | if (error) | |
1874 | goto out_mru_cache_uninit; | |
1da177e4 | 1875 | |
ce8e922c | 1876 | error = xfs_buf_init(); |
9f8868ff CH |
1877 | if (error) |
1878 | goto out_filestream_uninit; | |
1879 | ||
1880 | error = xfs_init_procfs(); | |
1881 | if (error) | |
1882 | goto out_buf_terminate; | |
1883 | ||
1884 | error = xfs_sysctl_register(); | |
1885 | if (error) | |
1886 | goto out_cleanup_procfs; | |
1da177e4 | 1887 | |
1da177e4 LT |
1888 | vfs_initquota(); |
1889 | ||
1890 | error = register_filesystem(&xfs_fs_type); | |
1891 | if (error) | |
9f8868ff | 1892 | goto out_sysctl_unregister; |
1da177e4 LT |
1893 | return 0; |
1894 | ||
9f8868ff CH |
1895 | out_sysctl_unregister: |
1896 | xfs_sysctl_unregister(); | |
1897 | out_cleanup_procfs: | |
1898 | xfs_cleanup_procfs(); | |
1899 | out_buf_terminate: | |
ce8e922c | 1900 | xfs_buf_terminate(); |
9f8868ff CH |
1901 | out_filestream_uninit: |
1902 | xfs_filestream_uninit(); | |
1903 | out_mru_cache_uninit: | |
1904 | xfs_mru_cache_uninit(); | |
1905 | out_free_trace_buffers: | |
1906 | xfs_free_trace_bufs(); | |
1907 | out_destroy_zones: | |
8758280f | 1908 | xfs_destroy_zones(); |
9f8868ff | 1909 | out: |
1da177e4 LT |
1910 | return error; |
1911 | } | |
1912 | ||
1913 | STATIC void __exit | |
9f8868ff | 1914 | exit_xfs_fs(void) |
1da177e4 LT |
1915 | { |
1916 | vfs_exitquota(); | |
1da177e4 | 1917 | unregister_filesystem(&xfs_fs_type); |
9f8868ff CH |
1918 | xfs_sysctl_unregister(); |
1919 | xfs_cleanup_procfs(); | |
ce8e922c | 1920 | xfs_buf_terminate(); |
9f8868ff CH |
1921 | xfs_filestream_uninit(); |
1922 | xfs_mru_cache_uninit(); | |
1923 | xfs_free_trace_bufs(); | |
8758280f | 1924 | xfs_destroy_zones(); |
1da177e4 LT |
1925 | ktrace_uninit(); |
1926 | } | |
1927 | ||
1928 | module_init(init_xfs_fs); | |
1929 | module_exit(exit_xfs_fs); | |
1930 | ||
1931 | MODULE_AUTHOR("Silicon Graphics, Inc."); | |
1932 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); | |
1933 | MODULE_LICENSE("GPL"); |