Commit | Line | Data |
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1da177e4 | 1 | /* |
a805bad5 | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
7b718769 | 3 | * All Rights Reserved. |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a844f451 | 19 | #include "xfs_bit.h" |
1da177e4 | 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); | |
9d565ffa | 273 | iosizelog = (uint8_t) iosize; |
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 | | |
358 | XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD); | |
a67d7c5f DC |
359 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || |
360 | !strcmp(this_char, MNTOPT_UQUOTA) || | |
361 | !strcmp(this_char, MNTOPT_USRQUOTA)) { | |
9d565ffa CH |
362 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE | |
363 | XFS_UQUOTA_ENFD); | |
a67d7c5f DC |
364 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || |
365 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { | |
9d565ffa CH |
366 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); |
367 | mp->m_qflags &= ~XFS_UQUOTA_ENFD; | |
a67d7c5f DC |
368 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || |
369 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { | |
9d565ffa CH |
370 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE | |
371 | XFS_OQUOTA_ENFD); | |
a67d7c5f | 372 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { |
9d565ffa CH |
373 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); |
374 | mp->m_qflags &= ~XFS_OQUOTA_ENFD; | |
a67d7c5f DC |
375 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || |
376 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { | |
9d565ffa CH |
377 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE | |
378 | XFS_OQUOTA_ENFD); | |
a67d7c5f | 379 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { |
9d565ffa CH |
380 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); |
381 | mp->m_qflags &= ~XFS_OQUOTA_ENFD; | |
a67d7c5f | 382 | } else if (!strcmp(this_char, MNTOPT_DMAPI)) { |
9d565ffa | 383 | mp->m_flags |= XFS_MOUNT_DMAPI; |
a67d7c5f | 384 | } else if (!strcmp(this_char, MNTOPT_XDSM)) { |
9d565ffa | 385 | mp->m_flags |= XFS_MOUNT_DMAPI; |
a67d7c5f | 386 | } else if (!strcmp(this_char, MNTOPT_DMI)) { |
9d565ffa | 387 | mp->m_flags |= XFS_MOUNT_DMAPI; |
a67d7c5f DC |
388 | } else if (!strcmp(this_char, "ihashsize")) { |
389 | cmn_err(CE_WARN, | |
390 | "XFS: ihashsize no longer used, option is deprecated."); | |
391 | } else if (!strcmp(this_char, "osyncisdsync")) { | |
392 | /* no-op, this is now the default */ | |
393 | cmn_err(CE_WARN, | |
394 | "XFS: osyncisdsync is now the default, option is deprecated."); | |
395 | } else if (!strcmp(this_char, "irixsgid")) { | |
396 | cmn_err(CE_WARN, | |
397 | "XFS: irixsgid is now a sysctl(2) variable, option is deprecated."); | |
398 | } else { | |
399 | cmn_err(CE_WARN, | |
400 | "XFS: unknown mount option [%s].", this_char); | |
401 | return EINVAL; | |
402 | } | |
403 | } | |
404 | ||
9d565ffa CH |
405 | /* |
406 | * no recovery flag requires a read-only mount | |
407 | */ | |
408 | if ((mp->m_flags & XFS_MOUNT_NORECOVERY) && | |
409 | !(mp->m_flags & XFS_MOUNT_RDONLY)) { | |
410 | cmn_err(CE_WARN, "XFS: no-recovery mounts must be read-only."); | |
411 | return EINVAL; | |
a67d7c5f DC |
412 | } |
413 | ||
9d565ffa | 414 | if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) { |
a67d7c5f DC |
415 | cmn_err(CE_WARN, |
416 | "XFS: sunit and swidth options incompatible with the noalign option"); | |
417 | return EINVAL; | |
418 | } | |
419 | ||
9d565ffa CH |
420 | if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) && |
421 | (mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE))) { | |
a67d7c5f DC |
422 | cmn_err(CE_WARN, |
423 | "XFS: cannot mount with both project and group quota"); | |
424 | return EINVAL; | |
425 | } | |
426 | ||
9d565ffa | 427 | if ((mp->m_flags & XFS_MOUNT_DMAPI) && (!*mtpt || *mtpt[0] == '\0')) { |
a67d7c5f DC |
428 | printk("XFS: %s option needs the mount point option as well\n", |
429 | MNTOPT_DMAPI); | |
430 | return EINVAL; | |
431 | } | |
432 | ||
433 | if ((dsunit && !dswidth) || (!dsunit && dswidth)) { | |
434 | cmn_err(CE_WARN, | |
435 | "XFS: sunit and swidth must be specified together"); | |
436 | return EINVAL; | |
437 | } | |
438 | ||
439 | if (dsunit && (dswidth % dsunit != 0)) { | |
440 | cmn_err(CE_WARN, | |
441 | "XFS: stripe width (%d) must be a multiple of the stripe unit (%d)", | |
442 | dswidth, dsunit); | |
443 | return EINVAL; | |
444 | } | |
445 | ||
446 | /* | |
447 | * Applications using DMI filesystems often expect the | |
448 | * inode generation number to be monotonically increasing. | |
449 | * If we delete inode chunks we break this assumption, so | |
450 | * keep unused inode chunks on disk for DMI filesystems | |
451 | * until we come up with a better solution. | |
452 | * Note that if "ikeep" or "noikeep" mount options are | |
453 | * supplied, then they are honored. | |
454 | */ | |
9d565ffa CH |
455 | if ((mp->m_flags & XFS_MOUNT_DMAPI) && dmapi_implies_ikeep) |
456 | mp->m_flags |= XFS_MOUNT_IKEEP; | |
a67d7c5f | 457 | |
9d565ffa CH |
458 | done: |
459 | if (!(mp->m_flags & XFS_MOUNT_NOALIGN)) { | |
460 | /* | |
461 | * At this point the superblock has not been read | |
462 | * in, therefore we do not know the block size. | |
463 | * Before the mount call ends we will convert | |
464 | * these to FSBs. | |
465 | */ | |
a67d7c5f | 466 | if (dsunit) { |
9d565ffa CH |
467 | mp->m_dalign = dsunit; |
468 | mp->m_flags |= XFS_MOUNT_RETERR; | |
a67d7c5f | 469 | } |
9d565ffa CH |
470 | |
471 | if (dswidth) | |
472 | mp->m_swidth = dswidth; | |
473 | } | |
474 | ||
475 | if (mp->m_logbufs != -1 && | |
476 | mp->m_logbufs != 0 && | |
477 | (mp->m_logbufs < XLOG_MIN_ICLOGS || | |
478 | mp->m_logbufs > XLOG_MAX_ICLOGS)) { | |
479 | cmn_err(CE_WARN, | |
480 | "XFS: invalid logbufs value: %d [not %d-%d]", | |
481 | mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); | |
482 | return XFS_ERROR(EINVAL); | |
483 | } | |
484 | if (mp->m_logbsize != -1 && | |
485 | mp->m_logbsize != 0 && | |
486 | (mp->m_logbsize < XLOG_MIN_RECORD_BSIZE || | |
487 | mp->m_logbsize > XLOG_MAX_RECORD_BSIZE || | |
488 | !is_power_of_2(mp->m_logbsize))) { | |
489 | cmn_err(CE_WARN, | |
490 | "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | |
491 | mp->m_logbsize); | |
492 | return XFS_ERROR(EINVAL); | |
493 | } | |
494 | ||
495 | mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL); | |
496 | if (!mp->m_fsname) | |
497 | return ENOMEM; | |
498 | mp->m_fsname_len = strlen(mp->m_fsname) + 1; | |
499 | ||
500 | if (iosizelog) { | |
501 | if (iosizelog > XFS_MAX_IO_LOG || | |
502 | iosizelog < XFS_MIN_IO_LOG) { | |
503 | cmn_err(CE_WARN, | |
504 | "XFS: invalid log iosize: %d [not %d-%d]", | |
505 | iosizelog, XFS_MIN_IO_LOG, | |
506 | XFS_MAX_IO_LOG); | |
507 | return XFS_ERROR(EINVAL); | |
508 | } | |
509 | ||
510 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | |
511 | mp->m_readio_log = iosizelog; | |
512 | mp->m_writeio_log = iosizelog; | |
a67d7c5f DC |
513 | } |
514 | ||
a67d7c5f DC |
515 | return 0; |
516 | } | |
517 | ||
518 | struct proc_xfs_info { | |
519 | int flag; | |
520 | char *str; | |
521 | }; | |
522 | ||
523 | STATIC int | |
524 | xfs_showargs( | |
525 | struct xfs_mount *mp, | |
526 | struct seq_file *m) | |
527 | { | |
528 | static struct proc_xfs_info xfs_info_set[] = { | |
529 | /* the few simple ones we can get from the mount struct */ | |
1bd960ee | 530 | { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, |
a67d7c5f DC |
531 | { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, |
532 | { XFS_MOUNT_INO64, "," MNTOPT_INO64 }, | |
533 | { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, | |
534 | { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC }, | |
535 | { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, | |
536 | { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, | |
537 | { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC }, | |
538 | { XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 }, | |
539 | { XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM }, | |
540 | { XFS_MOUNT_DMAPI, "," MNTOPT_DMAPI }, | |
541 | { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, | |
542 | { 0, NULL } | |
543 | }; | |
544 | static struct proc_xfs_info xfs_info_unset[] = { | |
545 | /* the few simple ones we can get from the mount struct */ | |
a67d7c5f DC |
546 | { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, |
547 | { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, | |
548 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, | |
549 | { 0, NULL } | |
550 | }; | |
551 | struct proc_xfs_info *xfs_infop; | |
552 | ||
553 | for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) { | |
554 | if (mp->m_flags & xfs_infop->flag) | |
555 | seq_puts(m, xfs_infop->str); | |
556 | } | |
557 | for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) { | |
558 | if (!(mp->m_flags & xfs_infop->flag)) | |
559 | seq_puts(m, xfs_infop->str); | |
560 | } | |
561 | ||
562 | if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) | |
563 | seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk", | |
564 | (int)(1 << mp->m_writeio_log) >> 10); | |
565 | ||
566 | if (mp->m_logbufs > 0) | |
567 | seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs); | |
568 | if (mp->m_logbsize > 0) | |
569 | seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10); | |
570 | ||
571 | if (mp->m_logname) | |
572 | seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname); | |
573 | if (mp->m_rtname) | |
574 | seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname); | |
575 | ||
576 | if (mp->m_dalign > 0) | |
577 | seq_printf(m, "," MNTOPT_SUNIT "=%d", | |
578 | (int)XFS_FSB_TO_BB(mp, mp->m_dalign)); | |
579 | if (mp->m_swidth > 0) | |
580 | seq_printf(m, "," MNTOPT_SWIDTH "=%d", | |
581 | (int)XFS_FSB_TO_BB(mp, mp->m_swidth)); | |
582 | ||
583 | if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD)) | |
584 | seq_puts(m, "," MNTOPT_USRQUOTA); | |
585 | else if (mp->m_qflags & XFS_UQUOTA_ACCT) | |
586 | seq_puts(m, "," MNTOPT_UQUOTANOENF); | |
587 | ||
588 | if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
589 | seq_puts(m, "," MNTOPT_PRJQUOTA); | |
590 | else if (mp->m_qflags & XFS_PQUOTA_ACCT) | |
591 | seq_puts(m, "," MNTOPT_PQUOTANOENF); | |
592 | ||
593 | if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) | |
594 | seq_puts(m, "," MNTOPT_GRPQUOTA); | |
595 | else if (mp->m_qflags & XFS_GQUOTA_ACCT) | |
596 | seq_puts(m, "," MNTOPT_GQUOTANOENF); | |
597 | ||
598 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) | |
599 | seq_puts(m, "," MNTOPT_NOQUOTA); | |
600 | ||
601 | return 0; | |
602 | } | |
1da177e4 LT |
603 | __uint64_t |
604 | xfs_max_file_offset( | |
605 | unsigned int blockshift) | |
606 | { | |
607 | unsigned int pagefactor = 1; | |
608 | unsigned int bitshift = BITS_PER_LONG - 1; | |
609 | ||
610 | /* Figure out maximum filesize, on Linux this can depend on | |
611 | * the filesystem blocksize (on 32 bit platforms). | |
612 | * __block_prepare_write does this in an [unsigned] long... | |
613 | * page->index << (PAGE_CACHE_SHIFT - bbits) | |
614 | * So, for page sized blocks (4K on 32 bit platforms), | |
615 | * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is | |
616 | * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) | |
617 | * but for smaller blocksizes it is less (bbits = log2 bsize). | |
618 | * Note1: get_block_t takes a long (implicit cast from above) | |
619 | * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch | |
620 | * can optionally convert the [unsigned] long from above into | |
621 | * an [unsigned] long long. | |
622 | */ | |
623 | ||
624 | #if BITS_PER_LONG == 32 | |
625 | # if defined(CONFIG_LBD) | |
626 | ASSERT(sizeof(sector_t) == 8); | |
627 | pagefactor = PAGE_CACHE_SIZE; | |
628 | bitshift = BITS_PER_LONG; | |
629 | # else | |
630 | pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift); | |
631 | # endif | |
632 | #endif | |
633 | ||
634 | return (((__uint64_t)pagefactor) << bitshift) - 1; | |
635 | } | |
636 | ||
1da177e4 LT |
637 | int |
638 | xfs_blkdev_get( | |
639 | xfs_mount_t *mp, | |
640 | const char *name, | |
641 | struct block_device **bdevp) | |
642 | { | |
643 | int error = 0; | |
644 | ||
30c40d2c | 645 | *bdevp = open_bdev_exclusive(name, FMODE_READ|FMODE_WRITE, mp); |
1da177e4 LT |
646 | if (IS_ERR(*bdevp)) { |
647 | error = PTR_ERR(*bdevp); | |
648 | printk("XFS: Invalid device [%s], error=%d\n", name, error); | |
649 | } | |
650 | ||
651 | return -error; | |
652 | } | |
653 | ||
654 | void | |
655 | xfs_blkdev_put( | |
656 | struct block_device *bdev) | |
657 | { | |
658 | if (bdev) | |
30c40d2c | 659 | close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE); |
1da177e4 LT |
660 | } |
661 | ||
f538d4da CH |
662 | /* |
663 | * Try to write out the superblock using barriers. | |
664 | */ | |
665 | STATIC int | |
666 | xfs_barrier_test( | |
667 | xfs_mount_t *mp) | |
668 | { | |
669 | xfs_buf_t *sbp = xfs_getsb(mp, 0); | |
670 | int error; | |
671 | ||
672 | XFS_BUF_UNDONE(sbp); | |
673 | XFS_BUF_UNREAD(sbp); | |
674 | XFS_BUF_UNDELAYWRITE(sbp); | |
675 | XFS_BUF_WRITE(sbp); | |
676 | XFS_BUF_UNASYNC(sbp); | |
677 | XFS_BUF_ORDERED(sbp); | |
678 | ||
679 | xfsbdstrat(mp, sbp); | |
680 | error = xfs_iowait(sbp); | |
681 | ||
682 | /* | |
683 | * Clear all the flags we set and possible error state in the | |
684 | * buffer. We only did the write to try out whether barriers | |
685 | * worked and shouldn't leave any traces in the superblock | |
686 | * buffer. | |
687 | */ | |
688 | XFS_BUF_DONE(sbp); | |
689 | XFS_BUF_ERROR(sbp, 0); | |
690 | XFS_BUF_UNORDERED(sbp); | |
691 | ||
692 | xfs_buf_relse(sbp); | |
693 | return error; | |
694 | } | |
695 | ||
696 | void | |
697 | xfs_mountfs_check_barriers(xfs_mount_t *mp) | |
698 | { | |
699 | int error; | |
700 | ||
701 | if (mp->m_logdev_targp != mp->m_ddev_targp) { | |
702 | xfs_fs_cmn_err(CE_NOTE, mp, | |
703 | "Disabling barriers, not supported with external log device"); | |
704 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 705 | return; |
f538d4da CH |
706 | } |
707 | ||
b2ea401b NS |
708 | if (xfs_readonly_buftarg(mp->m_ddev_targp)) { |
709 | xfs_fs_cmn_err(CE_NOTE, mp, | |
710 | "Disabling barriers, underlying device is readonly"); | |
711 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
712 | return; | |
713 | } | |
714 | ||
f538d4da CH |
715 | error = xfs_barrier_test(mp); |
716 | if (error) { | |
717 | xfs_fs_cmn_err(CE_NOTE, mp, | |
718 | "Disabling barriers, trial barrier write failed"); | |
719 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | |
4ef19ddd | 720 | return; |
f538d4da CH |
721 | } |
722 | } | |
723 | ||
724 | void | |
725 | xfs_blkdev_issue_flush( | |
726 | xfs_buftarg_t *buftarg) | |
727 | { | |
ce8e922c | 728 | blkdev_issue_flush(buftarg->bt_bdev, NULL); |
f538d4da | 729 | } |
1da177e4 | 730 | |
19f354d4 CH |
731 | STATIC void |
732 | xfs_close_devices( | |
733 | struct xfs_mount *mp) | |
734 | { | |
735 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
c032bfcf | 736 | struct block_device *logdev = mp->m_logdev_targp->bt_bdev; |
19f354d4 | 737 | xfs_free_buftarg(mp->m_logdev_targp); |
c032bfcf | 738 | xfs_blkdev_put(logdev); |
19f354d4 CH |
739 | } |
740 | if (mp->m_rtdev_targp) { | |
c032bfcf | 741 | struct block_device *rtdev = mp->m_rtdev_targp->bt_bdev; |
19f354d4 | 742 | xfs_free_buftarg(mp->m_rtdev_targp); |
c032bfcf | 743 | xfs_blkdev_put(rtdev); |
19f354d4 CH |
744 | } |
745 | xfs_free_buftarg(mp->m_ddev_targp); | |
746 | } | |
747 | ||
748 | /* | |
749 | * The file system configurations are: | |
750 | * (1) device (partition) with data and internal log | |
751 | * (2) logical volume with data and log subvolumes. | |
752 | * (3) logical volume with data, log, and realtime subvolumes. | |
753 | * | |
754 | * We only have to handle opening the log and realtime volumes here if | |
755 | * they are present. The data subvolume has already been opened by | |
756 | * get_sb_bdev() and is stored in sb->s_bdev. | |
757 | */ | |
758 | STATIC int | |
759 | xfs_open_devices( | |
9d565ffa | 760 | struct xfs_mount *mp) |
19f354d4 CH |
761 | { |
762 | struct block_device *ddev = mp->m_super->s_bdev; | |
763 | struct block_device *logdev = NULL, *rtdev = NULL; | |
764 | int error; | |
765 | ||
766 | /* | |
767 | * Open real time and log devices - order is important. | |
768 | */ | |
9d565ffa CH |
769 | if (mp->m_logname) { |
770 | error = xfs_blkdev_get(mp, mp->m_logname, &logdev); | |
19f354d4 CH |
771 | if (error) |
772 | goto out; | |
773 | } | |
774 | ||
9d565ffa CH |
775 | if (mp->m_rtname) { |
776 | error = xfs_blkdev_get(mp, mp->m_rtname, &rtdev); | |
19f354d4 CH |
777 | if (error) |
778 | goto out_close_logdev; | |
779 | ||
780 | if (rtdev == ddev || rtdev == logdev) { | |
781 | cmn_err(CE_WARN, | |
782 | "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev."); | |
783 | error = EINVAL; | |
784 | goto out_close_rtdev; | |
785 | } | |
786 | } | |
787 | ||
788 | /* | |
789 | * Setup xfs_mount buffer target pointers | |
790 | */ | |
791 | error = ENOMEM; | |
792 | mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0); | |
793 | if (!mp->m_ddev_targp) | |
794 | goto out_close_rtdev; | |
795 | ||
796 | if (rtdev) { | |
797 | mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1); | |
798 | if (!mp->m_rtdev_targp) | |
799 | goto out_free_ddev_targ; | |
800 | } | |
801 | ||
802 | if (logdev && logdev != ddev) { | |
803 | mp->m_logdev_targp = xfs_alloc_buftarg(logdev, 1); | |
804 | if (!mp->m_logdev_targp) | |
805 | goto out_free_rtdev_targ; | |
806 | } else { | |
807 | mp->m_logdev_targp = mp->m_ddev_targp; | |
808 | } | |
809 | ||
810 | return 0; | |
811 | ||
812 | out_free_rtdev_targ: | |
813 | if (mp->m_rtdev_targp) | |
814 | xfs_free_buftarg(mp->m_rtdev_targp); | |
815 | out_free_ddev_targ: | |
816 | xfs_free_buftarg(mp->m_ddev_targp); | |
817 | out_close_rtdev: | |
818 | if (rtdev) | |
819 | xfs_blkdev_put(rtdev); | |
820 | out_close_logdev: | |
821 | if (logdev && logdev != ddev) | |
822 | xfs_blkdev_put(logdev); | |
823 | out: | |
824 | return error; | |
825 | } | |
826 | ||
e34b562c CH |
827 | /* |
828 | * Setup xfs_mount buffer target pointers based on superblock | |
829 | */ | |
830 | STATIC int | |
831 | xfs_setup_devices( | |
832 | struct xfs_mount *mp) | |
833 | { | |
834 | int error; | |
19f354d4 | 835 | |
e34b562c CH |
836 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
837 | mp->m_sb.sb_sectsize); | |
838 | if (error) | |
839 | return error; | |
840 | ||
841 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { | |
842 | unsigned int log_sector_size = BBSIZE; | |
843 | ||
844 | if (xfs_sb_version_hassector(&mp->m_sb)) | |
845 | log_sector_size = mp->m_sb.sb_logsectsize; | |
846 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | |
847 | mp->m_sb.sb_blocksize, | |
848 | log_sector_size); | |
849 | if (error) | |
850 | return error; | |
851 | } | |
852 | if (mp->m_rtdev_targp) { | |
853 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | |
854 | mp->m_sb.sb_blocksize, | |
855 | mp->m_sb.sb_sectsize); | |
856 | if (error) | |
857 | return error; | |
858 | } | |
859 | ||
860 | return 0; | |
861 | } | |
19f354d4 | 862 | |
249a8c11 DC |
863 | /* |
864 | * XFS AIL push thread support | |
865 | */ | |
866 | void | |
867 | xfsaild_wakeup( | |
82fa9012 | 868 | struct xfs_ail *ailp, |
249a8c11 DC |
869 | xfs_lsn_t threshold_lsn) |
870 | { | |
82fa9012 DC |
871 | ailp->xa_target = threshold_lsn; |
872 | wake_up_process(ailp->xa_task); | |
249a8c11 DC |
873 | } |
874 | ||
875 | int | |
876 | xfsaild( | |
877 | void *data) | |
878 | { | |
82fa9012 | 879 | struct xfs_ail *ailp = data; |
249a8c11 DC |
880 | xfs_lsn_t last_pushed_lsn = 0; |
881 | long tout = 0; | |
882 | ||
883 | while (!kthread_should_stop()) { | |
884 | if (tout) | |
885 | schedule_timeout_interruptible(msecs_to_jiffies(tout)); | |
886 | tout = 1000; | |
887 | ||
888 | /* swsusp */ | |
889 | try_to_freeze(); | |
890 | ||
82fa9012 DC |
891 | ASSERT(ailp->xa_mount->m_log); |
892 | if (XFS_FORCED_SHUTDOWN(ailp->xa_mount)) | |
249a8c11 DC |
893 | continue; |
894 | ||
82fa9012 | 895 | tout = xfsaild_push(ailp, &last_pushed_lsn); |
249a8c11 DC |
896 | } |
897 | ||
898 | return 0; | |
899 | } /* xfsaild */ | |
900 | ||
901 | int | |
902 | xfsaild_start( | |
82fa9012 | 903 | struct xfs_ail *ailp) |
249a8c11 | 904 | { |
82fa9012 DC |
905 | ailp->xa_target = 0; |
906 | ailp->xa_task = kthread_run(xfsaild, ailp, "xfsaild"); | |
907 | if (IS_ERR(ailp->xa_task)) | |
908 | return -PTR_ERR(ailp->xa_task); | |
249a8c11 DC |
909 | return 0; |
910 | } | |
911 | ||
912 | void | |
913 | xfsaild_stop( | |
82fa9012 | 914 | struct xfs_ail *ailp) |
249a8c11 | 915 | { |
82fa9012 | 916 | kthread_stop(ailp->xa_task); |
249a8c11 DC |
917 | } |
918 | ||
919 | ||
bf904248 | 920 | /* Catch misguided souls that try to use this interface on XFS */ |
1da177e4 | 921 | STATIC struct inode * |
a50cd269 | 922 | xfs_fs_alloc_inode( |
1da177e4 LT |
923 | struct super_block *sb) |
924 | { | |
bf904248 | 925 | BUG(); |
493dca61 | 926 | return NULL; |
1da177e4 LT |
927 | } |
928 | ||
bf904248 | 929 | /* |
99fa8cb3 DC |
930 | * Now that the generic code is guaranteed not to be accessing |
931 | * the linux inode, we can reclaim the inode. | |
bf904248 | 932 | */ |
1da177e4 | 933 | STATIC void |
a50cd269 | 934 | xfs_fs_destroy_inode( |
bf904248 | 935 | struct inode *inode) |
1da177e4 | 936 | { |
99fa8cb3 DC |
937 | xfs_inode_t *ip = XFS_I(inode); |
938 | ||
939 | XFS_STATS_INC(vn_reclaim); | |
940 | if (xfs_reclaim(ip)) | |
941 | panic("%s: cannot reclaim 0x%p\n", __func__, inode); | |
1da177e4 LT |
942 | } |
943 | ||
07c8f675 DC |
944 | /* |
945 | * Slab object creation initialisation for the XFS inode. | |
946 | * This covers only the idempotent fields in the XFS inode; | |
947 | * all other fields need to be initialised on allocation | |
948 | * from the slab. This avoids the need to repeatedly intialise | |
949 | * fields in the xfs inode that left in the initialise state | |
950 | * when freeing the inode. | |
951 | */ | |
bf904248 DC |
952 | STATIC void |
953 | xfs_fs_inode_init_once( | |
07c8f675 DC |
954 | void *inode) |
955 | { | |
956 | struct xfs_inode *ip = inode; | |
957 | ||
958 | memset(ip, 0, sizeof(struct xfs_inode)); | |
bf904248 DC |
959 | |
960 | /* vfs inode */ | |
961 | inode_init_once(VFS_I(ip)); | |
962 | ||
963 | /* xfs inode */ | |
07c8f675 DC |
964 | atomic_set(&ip->i_iocount, 0); |
965 | atomic_set(&ip->i_pincount, 0); | |
966 | spin_lock_init(&ip->i_flags_lock); | |
07c8f675 DC |
967 | init_waitqueue_head(&ip->i_ipin_wait); |
968 | /* | |
969 | * Because we want to use a counting completion, complete | |
970 | * the flush completion once to allow a single access to | |
971 | * the flush completion without blocking. | |
972 | */ | |
973 | init_completion(&ip->i_flush); | |
974 | complete(&ip->i_flush); | |
975 | ||
976 | mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER, | |
977 | "xfsino", ip->i_ino); | |
978 | mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino); | |
979 | } | |
980 | ||
1da177e4 LT |
981 | /* |
982 | * Attempt to flush the inode, this will actually fail | |
983 | * if the inode is pinned, but we dirty the inode again | |
984 | * at the point when it is unpinned after a log write, | |
8758280f | 985 | * since this is when the inode itself becomes flushable. |
1da177e4 LT |
986 | */ |
987 | STATIC int | |
a50cd269 | 988 | xfs_fs_write_inode( |
1da177e4 LT |
989 | struct inode *inode, |
990 | int sync) | |
991 | { | |
a3f74ffb DC |
992 | int error = 0; |
993 | int flags = 0; | |
1da177e4 | 994 | |
cf441eeb | 995 | xfs_itrace_entry(XFS_I(inode)); |
739bfb2a CH |
996 | if (sync) { |
997 | filemap_fdatawait(inode->i_mapping); | |
998 | flags |= FLUSH_SYNC; | |
1da177e4 | 999 | } |
739bfb2a | 1000 | error = xfs_inode_flush(XFS_I(inode), flags); |
e893bffd LM |
1001 | /* |
1002 | * if we failed to write out the inode then mark | |
1003 | * it dirty again so we'll try again later. | |
1004 | */ | |
1005 | if (error) | |
94b97e39 | 1006 | xfs_mark_inode_dirty_sync(XFS_I(inode)); |
739bfb2a | 1007 | |
1da177e4 LT |
1008 | return -error; |
1009 | } | |
1010 | ||
1011 | STATIC void | |
a50cd269 | 1012 | xfs_fs_clear_inode( |
1da177e4 LT |
1013 | struct inode *inode) |
1014 | { | |
1543d79c | 1015 | xfs_inode_t *ip = XFS_I(inode); |
56d433e4 | 1016 | |
99fa8cb3 DC |
1017 | xfs_itrace_entry(ip); |
1018 | XFS_STATS_INC(vn_rele); | |
1019 | XFS_STATS_INC(vn_remove); | |
1020 | XFS_STATS_DEC(vn_active); | |
1021 | ||
1022 | xfs_inactive(ip); | |
1023 | xfs_iflags_clear(ip, XFS_IMODIFIED); | |
56d433e4 | 1024 | } |
1da177e4 | 1025 | |
a738159d CH |
1026 | STATIC void |
1027 | xfs_free_fsname( | |
1028 | struct xfs_mount *mp) | |
1029 | { | |
1030 | kfree(mp->m_fsname); | |
1031 | kfree(mp->m_rtname); | |
1032 | kfree(mp->m_logname); | |
1033 | } | |
1034 | ||
1da177e4 | 1035 | STATIC void |
a50cd269 | 1036 | xfs_fs_put_super( |
1da177e4 LT |
1037 | struct super_block *sb) |
1038 | { | |
745f6919 | 1039 | struct xfs_mount *mp = XFS_M(sb); |
e48ad316 CH |
1040 | struct xfs_inode *rip = mp->m_rootip; |
1041 | int unmount_event_flags = 0; | |
1da177e4 LT |
1042 | int error; |
1043 | ||
a167b17e | 1044 | xfs_syncd_stop(mp); |
be97d9d5 | 1045 | xfs_sync_inodes(mp, SYNC_ATTR|SYNC_DELWRI); |
e48ad316 CH |
1046 | |
1047 | #ifdef HAVE_DMAPI | |
1048 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | |
1049 | unmount_event_flags = | |
1050 | (mp->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? | |
1051 | 0 : DM_FLAGS_UNWANTED; | |
1052 | /* | |
1053 | * Ignore error from dmapi here, first unmount is not allowed | |
1054 | * to fail anyway, and second we wouldn't want to fail a | |
1055 | * unmount because of dmapi. | |
1056 | */ | |
1057 | XFS_SEND_PREUNMOUNT(mp, rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL, | |
1058 | NULL, NULL, 0, 0, unmount_event_flags); | |
1059 | } | |
1060 | #endif | |
1061 | ||
1062 | /* | |
1063 | * Blow away any referenced inode in the filestreams cache. | |
1064 | * This can and will cause log traffic as inodes go inactive | |
1065 | * here. | |
1066 | */ | |
1067 | xfs_filestream_unmount(mp); | |
1068 | ||
1069 | XFS_bflush(mp->m_ddev_targp); | |
1070 | error = xfs_unmount_flush(mp, 0); | |
1071 | WARN_ON(error); | |
1072 | ||
e48ad316 CH |
1073 | if (mp->m_flags & XFS_MOUNT_DMAPI) { |
1074 | XFS_SEND_UNMOUNT(mp, rip, DM_RIGHT_NULL, 0, 0, | |
1075 | unmount_event_flags); | |
1076 | } | |
1077 | ||
19f354d4 | 1078 | xfs_unmountfs(mp); |
6203300e | 1079 | xfs_freesb(mp); |
c962fb79 | 1080 | xfs_icsb_destroy_counters(mp); |
19f354d4 | 1081 | xfs_close_devices(mp); |
e48ad316 CH |
1082 | xfs_qmops_put(mp); |
1083 | xfs_dmops_put(mp); | |
a738159d | 1084 | xfs_free_fsname(mp); |
c962fb79 | 1085 | kfree(mp); |
1da177e4 LT |
1086 | } |
1087 | ||
1088 | STATIC void | |
a50cd269 | 1089 | xfs_fs_write_super( |
1da177e4 LT |
1090 | struct super_block *sb) |
1091 | { | |
b83bd138 | 1092 | if (!(sb->s_flags & MS_RDONLY)) |
e9f1c6ee | 1093 | xfs_sync_fsdata(XFS_M(sb), 0); |
1da177e4 LT |
1094 | sb->s_dirt = 0; |
1095 | } | |
1096 | ||
1097 | STATIC int | |
a50cd269 | 1098 | xfs_fs_sync_super( |
1da177e4 LT |
1099 | struct super_block *sb, |
1100 | int wait) | |
1101 | { | |
745f6919 | 1102 | struct xfs_mount *mp = XFS_M(sb); |
b83bd138 | 1103 | int error; |
1da177e4 | 1104 | |
e893bffd LM |
1105 | /* |
1106 | * Treat a sync operation like a freeze. This is to work | |
1107 | * around a race in sync_inodes() which works in two phases | |
1108 | * - an asynchronous flush, which can write out an inode | |
1109 | * without waiting for file size updates to complete, and a | |
1110 | * synchronous flush, which wont do anything because the | |
1111 | * async flush removed the inode's dirty flag. Also | |
1112 | * sync_inodes() will not see any files that just have | |
1113 | * outstanding transactions to be flushed because we don't | |
1114 | * dirty the Linux inode until after the transaction I/O | |
1115 | * completes. | |
1116 | */ | |
e9f1c6ee DC |
1117 | if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) |
1118 | error = xfs_quiesce_data(mp); | |
1119 | else | |
1120 | error = xfs_sync_fsdata(mp, 0); | |
1da177e4 LT |
1121 | sb->s_dirt = 0; |
1122 | ||
1123 | if (unlikely(laptop_mode)) { | |
74394496 | 1124 | int prev_sync_seq = mp->m_sync_seq; |
1da177e4 LT |
1125 | |
1126 | /* | |
1127 | * The disk must be active because we're syncing. | |
1128 | * We schedule xfssyncd now (now that the disk is | |
1129 | * active) instead of later (when it might not be). | |
1130 | */ | |
74394496 | 1131 | wake_up_process(mp->m_sync_task); |
1da177e4 LT |
1132 | /* |
1133 | * We have to wait for the sync iteration to complete. | |
1134 | * If we don't, the disk activity caused by the sync | |
1135 | * will come after the sync is completed, and that | |
1136 | * triggers another sync from laptop mode. | |
1137 | */ | |
74394496 CH |
1138 | wait_event(mp->m_wait_single_sync_task, |
1139 | mp->m_sync_seq != prev_sync_seq); | |
1da177e4 LT |
1140 | } |
1141 | ||
1142 | return -error; | |
1143 | } | |
1144 | ||
1145 | STATIC int | |
a50cd269 | 1146 | xfs_fs_statfs( |
726c3342 | 1147 | struct dentry *dentry, |
1da177e4 LT |
1148 | struct kstatfs *statp) |
1149 | { | |
4ca488eb CH |
1150 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
1151 | xfs_sb_t *sbp = &mp->m_sb; | |
1152 | __uint64_t fakeinos, id; | |
1153 | xfs_extlen_t lsize; | |
1154 | ||
1155 | statp->f_type = XFS_SB_MAGIC; | |
1156 | statp->f_namelen = MAXNAMELEN - 1; | |
1157 | ||
1158 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); | |
1159 | statp->f_fsid.val[0] = (u32)id; | |
1160 | statp->f_fsid.val[1] = (u32)(id >> 32); | |
1161 | ||
d4d90b57 | 1162 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
4ca488eb CH |
1163 | |
1164 | spin_lock(&mp->m_sb_lock); | |
1165 | statp->f_bsize = sbp->sb_blocksize; | |
1166 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; | |
1167 | statp->f_blocks = sbp->sb_dblocks - lsize; | |
1168 | statp->f_bfree = statp->f_bavail = | |
1169 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); | |
1170 | fakeinos = statp->f_bfree << sbp->sb_inopblog; | |
1171 | #if XFS_BIG_INUMS | |
1172 | fakeinos += mp->m_inoadd; | |
1173 | #endif | |
1174 | statp->f_files = | |
1175 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); | |
1176 | if (mp->m_maxicount) | |
1177 | #if XFS_BIG_INUMS | |
1178 | if (!mp->m_inoadd) | |
1179 | #endif | |
1180 | statp->f_files = min_t(typeof(statp->f_files), | |
1181 | statp->f_files, | |
1182 | mp->m_maxicount); | |
1183 | statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); | |
1184 | spin_unlock(&mp->m_sb_lock); | |
1185 | ||
1186 | XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp); | |
1187 | return 0; | |
1da177e4 LT |
1188 | } |
1189 | ||
1190 | STATIC int | |
a50cd269 | 1191 | xfs_fs_remount( |
1da177e4 LT |
1192 | struct super_block *sb, |
1193 | int *flags, | |
1194 | char *options) | |
1195 | { | |
745f6919 | 1196 | struct xfs_mount *mp = XFS_M(sb); |
62a877e3 CH |
1197 | substring_t args[MAX_OPT_ARGS]; |
1198 | char *p; | |
1da177e4 | 1199 | |
62a877e3 CH |
1200 | while ((p = strsep(&options, ",")) != NULL) { |
1201 | int token; | |
bdd907ba | 1202 | |
62a877e3 CH |
1203 | if (!*p) |
1204 | continue; | |
48b62a1a | 1205 | |
62a877e3 CH |
1206 | token = match_token(p, tokens, args); |
1207 | switch (token) { | |
1208 | case Opt_barrier: | |
48b62a1a | 1209 | mp->m_flags |= XFS_MOUNT_BARRIER; |
62a877e3 CH |
1210 | |
1211 | /* | |
1212 | * Test if barriers are actually working if we can, | |
1213 | * else delay this check until the filesystem is | |
1214 | * marked writeable. | |
1215 | */ | |
1216 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) | |
1217 | xfs_mountfs_check_barriers(mp); | |
1218 | break; | |
1219 | case Opt_nobarrier: | |
48b62a1a | 1220 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
62a877e3 CH |
1221 | break; |
1222 | default: | |
6efdf281 CH |
1223 | /* |
1224 | * Logically we would return an error here to prevent | |
1225 | * users from believing they might have changed | |
1226 | * mount options using remount which can't be changed. | |
1227 | * | |
1228 | * But unfortunately mount(8) adds all options from | |
1229 | * mtab and fstab to the mount arguments in some cases | |
1230 | * so we can't blindly reject options, but have to | |
1231 | * check for each specified option if it actually | |
1232 | * differs from the currently set option and only | |
1233 | * reject it if that's the case. | |
1234 | * | |
1235 | * Until that is implemented we return success for | |
1236 | * every remount request, and silently ignore all | |
1237 | * options that we can't actually change. | |
1238 | */ | |
1239 | #if 0 | |
62a877e3 CH |
1240 | printk(KERN_INFO |
1241 | "XFS: mount option \"%s\" not supported for remount\n", p); | |
1242 | return -EINVAL; | |
6efdf281 | 1243 | #else |
6c5e51da | 1244 | break; |
6efdf281 | 1245 | #endif |
48b62a1a | 1246 | } |
62a877e3 CH |
1247 | } |
1248 | ||
1249 | /* rw/ro -> rw */ | |
1250 | if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(*flags & MS_RDONLY)) { | |
1251 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | |
1252 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1253 | xfs_mountfs_check_barriers(mp); | |
1254 | } | |
1255 | ||
1256 | /* rw -> ro */ | |
1257 | if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (*flags & MS_RDONLY)) { | |
e9f1c6ee | 1258 | xfs_quiesce_data(mp); |
76bf105c | 1259 | xfs_quiesce_attr(mp); |
48b62a1a CH |
1260 | mp->m_flags |= XFS_MOUNT_RDONLY; |
1261 | } | |
1262 | ||
62a877e3 | 1263 | return 0; |
1da177e4 LT |
1264 | } |
1265 | ||
9909c4aa CH |
1266 | /* |
1267 | * Second stage of a freeze. The data is already frozen so we only | |
76bf105c | 1268 | * need to take care of the metadata. Once that's done write a dummy |
9909c4aa CH |
1269 | * record to dirty the log in case of a crash while frozen. |
1270 | */ | |
1da177e4 | 1271 | STATIC void |
a50cd269 | 1272 | xfs_fs_lockfs( |
1da177e4 LT |
1273 | struct super_block *sb) |
1274 | { | |
9909c4aa CH |
1275 | struct xfs_mount *mp = XFS_M(sb); |
1276 | ||
76bf105c | 1277 | xfs_quiesce_attr(mp); |
9909c4aa | 1278 | xfs_fs_log_dummy(mp); |
1da177e4 LT |
1279 | } |
1280 | ||
1281 | STATIC int | |
a50cd269 | 1282 | xfs_fs_show_options( |
1da177e4 LT |
1283 | struct seq_file *m, |
1284 | struct vfsmount *mnt) | |
1285 | { | |
745f6919 | 1286 | return -xfs_showargs(XFS_M(mnt->mnt_sb), m); |
1da177e4 LT |
1287 | } |
1288 | ||
ee34807a | 1289 | STATIC int |
a50cd269 | 1290 | xfs_fs_quotasync( |
ee34807a NS |
1291 | struct super_block *sb, |
1292 | int type) | |
1293 | { | |
b09cc771 | 1294 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL); |
ee34807a NS |
1295 | } |
1296 | ||
1da177e4 | 1297 | STATIC int |
a50cd269 | 1298 | xfs_fs_getxstate( |
1da177e4 LT |
1299 | struct super_block *sb, |
1300 | struct fs_quota_stat *fqs) | |
1301 | { | |
b09cc771 | 1302 | return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs); |
1da177e4 LT |
1303 | } |
1304 | ||
1305 | STATIC int | |
a50cd269 | 1306 | xfs_fs_setxstate( |
1da177e4 LT |
1307 | struct super_block *sb, |
1308 | unsigned int flags, | |
1309 | int op) | |
1310 | { | |
b09cc771 | 1311 | return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags); |
1da177e4 LT |
1312 | } |
1313 | ||
1314 | STATIC int | |
a50cd269 | 1315 | xfs_fs_getxquota( |
1da177e4 LT |
1316 | struct super_block *sb, |
1317 | int type, | |
1318 | qid_t id, | |
1319 | struct fs_disk_quota *fdq) | |
1320 | { | |
b09cc771 | 1321 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1322 | (type == USRQUOTA) ? Q_XGETQUOTA : |
1323 | ((type == GRPQUOTA) ? Q_XGETGQUOTA : | |
1324 | Q_XGETPQUOTA), id, (caddr_t)fdq); | |
1da177e4 LT |
1325 | } |
1326 | ||
1327 | STATIC int | |
a50cd269 | 1328 | xfs_fs_setxquota( |
1da177e4 LT |
1329 | struct super_block *sb, |
1330 | int type, | |
1331 | qid_t id, | |
1332 | struct fs_disk_quota *fdq) | |
1333 | { | |
b09cc771 | 1334 | return -XFS_QM_QUOTACTL(XFS_M(sb), |
b83bd138 NS |
1335 | (type == USRQUOTA) ? Q_XSETQLIM : |
1336 | ((type == GRPQUOTA) ? Q_XSETGQLIM : | |
1337 | Q_XSETPQLIM), id, (caddr_t)fdq); | |
1da177e4 LT |
1338 | } |
1339 | ||
f8f15e42 CH |
1340 | /* |
1341 | * This function fills in xfs_mount_t fields based on mount args. | |
1342 | * Note: the superblock _has_ now been read in. | |
1343 | */ | |
1344 | STATIC int | |
1345 | xfs_finish_flags( | |
f8f15e42 CH |
1346 | struct xfs_mount *mp) |
1347 | { | |
1348 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | |
1349 | ||
1350 | /* Fail a mount where the logbuf is smaller then the log stripe */ | |
1351 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { | |
9d565ffa CH |
1352 | if (mp->m_logbsize <= 0 && |
1353 | mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE) { | |
f8f15e42 | 1354 | mp->m_logbsize = mp->m_sb.sb_logsunit; |
9d565ffa CH |
1355 | } else if (mp->m_logbsize > 0 && |
1356 | mp->m_logbsize < mp->m_sb.sb_logsunit) { | |
f8f15e42 CH |
1357 | cmn_err(CE_WARN, |
1358 | "XFS: logbuf size must be greater than or equal to log stripe size"); | |
1359 | return XFS_ERROR(EINVAL); | |
1360 | } | |
1361 | } else { | |
1362 | /* Fail a mount if the logbuf is larger than 32K */ | |
9d565ffa | 1363 | if (mp->m_logbsize > XLOG_BIG_RECORD_BSIZE) { |
f8f15e42 CH |
1364 | cmn_err(CE_WARN, |
1365 | "XFS: logbuf size for version 1 logs must be 16K or 32K"); | |
1366 | return XFS_ERROR(EINVAL); | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | /* | |
1371 | * mkfs'ed attr2 will turn on attr2 mount unless explicitly | |
1372 | * told by noattr2 to turn it off | |
1373 | */ | |
1374 | if (xfs_sb_version_hasattr2(&mp->m_sb) && | |
9d565ffa | 1375 | !(mp->m_flags & XFS_MOUNT_NOATTR2)) |
f8f15e42 CH |
1376 | mp->m_flags |= XFS_MOUNT_ATTR2; |
1377 | ||
1378 | /* | |
1379 | * prohibit r/w mounts of read-only filesystems | |
1380 | */ | |
1381 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { | |
1382 | cmn_err(CE_WARN, | |
1383 | "XFS: cannot mount a read-only filesystem as read-write"); | |
1384 | return XFS_ERROR(EROFS); | |
1385 | } | |
1386 | ||
9d565ffa | 1387 | #if 0 /* shared mounts were never supported on Linux */ |
f8f15e42 CH |
1388 | /* |
1389 | * check for shared mount. | |
1390 | */ | |
1391 | if (ap->flags & XFSMNT_SHARED) { | |
1392 | if (!xfs_sb_version_hasshared(&mp->m_sb)) | |
1393 | return XFS_ERROR(EINVAL); | |
1394 | ||
1395 | /* | |
1396 | * For IRIX 6.5, shared mounts must have the shared | |
1397 | * version bit set, have the persistent readonly | |
1398 | * field set, must be version 0 and can only be mounted | |
1399 | * read-only. | |
1400 | */ | |
1401 | if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) || | |
1402 | (mp->m_sb.sb_shared_vn != 0)) | |
1403 | return XFS_ERROR(EINVAL); | |
1404 | ||
1405 | mp->m_flags |= XFS_MOUNT_SHARED; | |
1406 | ||
1407 | /* | |
1408 | * Shared XFS V0 can't deal with DMI. Return EINVAL. | |
1409 | */ | |
9d565ffa CH |
1410 | if (mp->m_sb.sb_shared_vn == 0 && |
1411 | (mp->m_flags & XFS_MOUNT_DMAPI)) | |
f8f15e42 CH |
1412 | return XFS_ERROR(EINVAL); |
1413 | } | |
9d565ffa | 1414 | #endif |
f8f15e42 CH |
1415 | |
1416 | return 0; | |
1417 | } | |
1418 | ||
1da177e4 | 1419 | STATIC int |
a50cd269 | 1420 | xfs_fs_fill_super( |
1da177e4 LT |
1421 | struct super_block *sb, |
1422 | void *data, | |
1423 | int silent) | |
1424 | { | |
f3dcc13f | 1425 | struct inode *root; |
745f6919 | 1426 | struct xfs_mount *mp = NULL; |
c962fb79 | 1427 | int flags = 0, error = ENOMEM; |
9d565ffa | 1428 | char *mtpt = NULL; |
bdd907ba | 1429 | |
c962fb79 CH |
1430 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
1431 | if (!mp) | |
9d565ffa | 1432 | goto out; |
1da177e4 | 1433 | |
c962fb79 | 1434 | spin_lock_init(&mp->m_sb_lock); |
c962fb79 CH |
1435 | mutex_init(&mp->m_growlock); |
1436 | atomic_set(&mp->m_active_trans, 0); | |
74394496 CH |
1437 | INIT_LIST_HEAD(&mp->m_sync_list); |
1438 | spin_lock_init(&mp->m_sync_lock); | |
1439 | init_waitqueue_head(&mp->m_wait_single_sync_task); | |
1440 | ||
b267ce99 CH |
1441 | mp->m_super = sb; |
1442 | sb->s_fs_info = mp; | |
1da177e4 | 1443 | |
9d565ffa | 1444 | error = xfs_parseargs(mp, (char *)data, &mtpt); |
745f6919 | 1445 | if (error) |
9d565ffa | 1446 | goto out_free_fsname; |
1da177e4 LT |
1447 | |
1448 | sb_min_blocksize(sb, BBSIZE); | |
0ec58516 | 1449 | sb->s_xattr = xfs_xattr_handlers; |
a50cd269 | 1450 | sb->s_export_op = &xfs_export_operations; |
a50cd269 NS |
1451 | sb->s_qcop = &xfs_quotactl_operations; |
1452 | sb->s_op = &xfs_super_operations; | |
1da177e4 | 1453 | |
9d565ffa | 1454 | error = xfs_dmops_get(mp); |
f8f15e42 | 1455 | if (error) |
9d565ffa CH |
1456 | goto out_free_fsname; |
1457 | error = xfs_qmops_get(mp); | |
745f6919 | 1458 | if (error) |
19f354d4 | 1459 | goto out_put_dmops; |
1da177e4 | 1460 | |
9d565ffa | 1461 | if (silent) |
f8f15e42 CH |
1462 | flags |= XFS_MFSI_QUIET; |
1463 | ||
9d565ffa | 1464 | error = xfs_open_devices(mp); |
19f354d4 CH |
1465 | if (error) |
1466 | goto out_put_qmops; | |
f8f15e42 | 1467 | |
c962fb79 CH |
1468 | if (xfs_icsb_init_counters(mp)) |
1469 | mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB; | |
1470 | ||
f8f15e42 CH |
1471 | error = xfs_readsb(mp, flags); |
1472 | if (error) | |
9d565ffa CH |
1473 | goto out_destroy_counters; |
1474 | ||
1475 | error = xfs_finish_flags(mp); | |
f8f15e42 | 1476 | if (error) |
effa2eda | 1477 | goto out_free_sb; |
f8f15e42 | 1478 | |
e34b562c | 1479 | error = xfs_setup_devices(mp); |
19f354d4 | 1480 | if (error) |
effa2eda | 1481 | goto out_free_sb; |
f8f15e42 CH |
1482 | |
1483 | if (mp->m_flags & XFS_MOUNT_BARRIER) | |
1484 | xfs_mountfs_check_barriers(mp); | |
1485 | ||
1486 | error = xfs_filestream_mount(mp); | |
1487 | if (error) | |
effa2eda | 1488 | goto out_free_sb; |
f8f15e42 | 1489 | |
4249023a | 1490 | error = xfs_mountfs(mp); |
f8f15e42 | 1491 | if (error) |
120226c1 | 1492 | goto out_filestream_unmount; |
f8f15e42 | 1493 | |
9d565ffa | 1494 | XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, mtpt, mp->m_fsname); |
f8f15e42 | 1495 | |
1da177e4 | 1496 | sb->s_dirt = 1; |
4ca488eb CH |
1497 | sb->s_magic = XFS_SB_MAGIC; |
1498 | sb->s_blocksize = mp->m_sb.sb_blocksize; | |
1499 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; | |
1da177e4 LT |
1500 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
1501 | sb->s_time_gran = 1; | |
1502 | set_posix_acl_flag(sb); | |
1503 | ||
01651646 | 1504 | root = igrab(VFS_I(mp->m_rootip)); |
f3dcc13f | 1505 | if (!root) { |
cbc89dcf | 1506 | error = ENOENT; |
1da177e4 | 1507 | goto fail_unmount; |
cbc89dcf | 1508 | } |
f3dcc13f CH |
1509 | if (is_bad_inode(root)) { |
1510 | error = EINVAL; | |
1da177e4 LT |
1511 | goto fail_vnrele; |
1512 | } | |
f3dcc13f CH |
1513 | sb->s_root = d_alloc_root(root); |
1514 | if (!sb->s_root) { | |
1515 | error = ENOMEM; | |
1da177e4 LT |
1516 | goto fail_vnrele; |
1517 | } | |
74394496 | 1518 | |
a167b17e DC |
1519 | error = xfs_syncd_init(mp); |
1520 | if (error) | |
1da177e4 | 1521 | goto fail_vnrele; |
74394496 | 1522 | |
9d565ffa | 1523 | kfree(mtpt); |
1da177e4 | 1524 | |
9d565ffa | 1525 | xfs_itrace_exit(XFS_I(sb->s_root->d_inode)); |
1da177e4 LT |
1526 | return 0; |
1527 | ||
120226c1 CH |
1528 | out_filestream_unmount: |
1529 | xfs_filestream_unmount(mp); | |
effa2eda CH |
1530 | out_free_sb: |
1531 | xfs_freesb(mp); | |
9d565ffa | 1532 | out_destroy_counters: |
c962fb79 | 1533 | xfs_icsb_destroy_counters(mp); |
19f354d4 CH |
1534 | xfs_close_devices(mp); |
1535 | out_put_qmops: | |
f8f15e42 | 1536 | xfs_qmops_put(mp); |
19f354d4 | 1537 | out_put_dmops: |
f8f15e42 | 1538 | xfs_dmops_put(mp); |
9d565ffa CH |
1539 | out_free_fsname: |
1540 | xfs_free_fsname(mp); | |
1541 | kfree(mtpt); | |
c962fb79 | 1542 | kfree(mp); |
9d565ffa | 1543 | out: |
c962fb79 | 1544 | return -error; |
f8f15e42 CH |
1545 | |
1546 | fail_vnrele: | |
1da177e4 LT |
1547 | if (sb->s_root) { |
1548 | dput(sb->s_root); | |
1549 | sb->s_root = NULL; | |
1550 | } else { | |
f3dcc13f | 1551 | iput(root); |
1da177e4 LT |
1552 | } |
1553 | ||
f8f15e42 | 1554 | fail_unmount: |
e48ad316 CH |
1555 | /* |
1556 | * Blow away any referenced inode in the filestreams cache. | |
1557 | * This can and will cause log traffic as inodes go inactive | |
1558 | * here. | |
1559 | */ | |
1560 | xfs_filestream_unmount(mp); | |
1561 | ||
1562 | XFS_bflush(mp->m_ddev_targp); | |
1563 | error = xfs_unmount_flush(mp, 0); | |
1564 | WARN_ON(error); | |
1565 | ||
19f354d4 | 1566 | xfs_unmountfs(mp); |
6203300e | 1567 | goto out_free_sb; |
1da177e4 LT |
1568 | } |
1569 | ||
454e2398 | 1570 | STATIC int |
a50cd269 | 1571 | xfs_fs_get_sb( |
1da177e4 LT |
1572 | struct file_system_type *fs_type, |
1573 | int flags, | |
1574 | const char *dev_name, | |
454e2398 DH |
1575 | void *data, |
1576 | struct vfsmount *mnt) | |
1da177e4 | 1577 | { |
454e2398 DH |
1578 | return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super, |
1579 | mnt); | |
a50cd269 NS |
1580 | } |
1581 | ||
7989cb8e | 1582 | static struct super_operations xfs_super_operations = { |
a50cd269 NS |
1583 | .alloc_inode = xfs_fs_alloc_inode, |
1584 | .destroy_inode = xfs_fs_destroy_inode, | |
1585 | .write_inode = xfs_fs_write_inode, | |
1586 | .clear_inode = xfs_fs_clear_inode, | |
1587 | .put_super = xfs_fs_put_super, | |
1588 | .write_super = xfs_fs_write_super, | |
1589 | .sync_fs = xfs_fs_sync_super, | |
1590 | .write_super_lockfs = xfs_fs_lockfs, | |
1591 | .statfs = xfs_fs_statfs, | |
1592 | .remount_fs = xfs_fs_remount, | |
1593 | .show_options = xfs_fs_show_options, | |
1da177e4 LT |
1594 | }; |
1595 | ||
7989cb8e | 1596 | static struct quotactl_ops xfs_quotactl_operations = { |
a50cd269 NS |
1597 | .quota_sync = xfs_fs_quotasync, |
1598 | .get_xstate = xfs_fs_getxstate, | |
1599 | .set_xstate = xfs_fs_setxstate, | |
1600 | .get_xquota = xfs_fs_getxquota, | |
1601 | .set_xquota = xfs_fs_setxquota, | |
1da177e4 LT |
1602 | }; |
1603 | ||
5085b607 | 1604 | static struct file_system_type xfs_fs_type = { |
1da177e4 LT |
1605 | .owner = THIS_MODULE, |
1606 | .name = "xfs", | |
a50cd269 | 1607 | .get_sb = xfs_fs_get_sb, |
1da177e4 LT |
1608 | .kill_sb = kill_block_super, |
1609 | .fs_flags = FS_REQUIRES_DEV, | |
1610 | }; | |
1611 | ||
9f8868ff CH |
1612 | STATIC int __init |
1613 | xfs_alloc_trace_bufs(void) | |
1614 | { | |
1615 | #ifdef XFS_ALLOC_TRACE | |
1616 | xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_MAYFAIL); | |
1617 | if (!xfs_alloc_trace_buf) | |
1618 | goto out; | |
1619 | #endif | |
1620 | #ifdef XFS_BMAP_TRACE | |
1621 | xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_MAYFAIL); | |
1622 | if (!xfs_bmap_trace_buf) | |
1623 | goto out_free_alloc_trace; | |
1624 | #endif | |
8c4ed633 CH |
1625 | #ifdef XFS_BTREE_TRACE |
1626 | xfs_allocbt_trace_buf = ktrace_alloc(XFS_ALLOCBT_TRACE_SIZE, | |
1627 | KM_MAYFAIL); | |
1628 | if (!xfs_allocbt_trace_buf) | |
1629 | goto out_free_bmap_trace; | |
1630 | ||
1631 | xfs_inobt_trace_buf = ktrace_alloc(XFS_INOBT_TRACE_SIZE, KM_MAYFAIL); | |
1632 | if (!xfs_inobt_trace_buf) | |
1633 | goto out_free_allocbt_trace; | |
1634 | ||
9f8868ff CH |
1635 | xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_MAYFAIL); |
1636 | if (!xfs_bmbt_trace_buf) | |
8c4ed633 | 1637 | goto out_free_inobt_trace; |
9f8868ff CH |
1638 | #endif |
1639 | #ifdef XFS_ATTR_TRACE | |
1640 | xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_MAYFAIL); | |
1641 | if (!xfs_attr_trace_buf) | |
1642 | goto out_free_bmbt_trace; | |
1643 | #endif | |
1644 | #ifdef XFS_DIR2_TRACE | |
1645 | xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_MAYFAIL); | |
1646 | if (!xfs_dir2_trace_buf) | |
1647 | goto out_free_attr_trace; | |
1648 | #endif | |
1649 | ||
1650 | return 0; | |
1651 | ||
1652 | #ifdef XFS_DIR2_TRACE | |
1653 | out_free_attr_trace: | |
1654 | #endif | |
1655 | #ifdef XFS_ATTR_TRACE | |
1656 | ktrace_free(xfs_attr_trace_buf); | |
1657 | out_free_bmbt_trace: | |
1658 | #endif | |
8c4ed633 | 1659 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1660 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1661 | out_free_inobt_trace: |
1662 | ktrace_free(xfs_inobt_trace_buf); | |
1663 | out_free_allocbt_trace: | |
1664 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1665 | out_free_bmap_trace: |
1666 | #endif | |
1667 | #ifdef XFS_BMAP_TRACE | |
1668 | ktrace_free(xfs_bmap_trace_buf); | |
1669 | out_free_alloc_trace: | |
1670 | #endif | |
1671 | #ifdef XFS_ALLOC_TRACE | |
1672 | ktrace_free(xfs_alloc_trace_buf); | |
1673 | out: | |
1674 | #endif | |
1675 | return -ENOMEM; | |
1676 | } | |
1677 | ||
1678 | STATIC void | |
1679 | xfs_free_trace_bufs(void) | |
1680 | { | |
1681 | #ifdef XFS_DIR2_TRACE | |
1682 | ktrace_free(xfs_dir2_trace_buf); | |
1683 | #endif | |
1684 | #ifdef XFS_ATTR_TRACE | |
1685 | ktrace_free(xfs_attr_trace_buf); | |
1686 | #endif | |
8c4ed633 | 1687 | #ifdef XFS_BTREE_TRACE |
9f8868ff | 1688 | ktrace_free(xfs_bmbt_trace_buf); |
8c4ed633 CH |
1689 | ktrace_free(xfs_inobt_trace_buf); |
1690 | ktrace_free(xfs_allocbt_trace_buf); | |
9f8868ff CH |
1691 | #endif |
1692 | #ifdef XFS_BMAP_TRACE | |
1693 | ktrace_free(xfs_bmap_trace_buf); | |
1694 | #endif | |
1695 | #ifdef XFS_ALLOC_TRACE | |
1696 | ktrace_free(xfs_alloc_trace_buf); | |
1697 | #endif | |
1698 | } | |
1699 | ||
1700 | STATIC int __init | |
1701 | xfs_init_zones(void) | |
1702 | { | |
9f8868ff CH |
1703 | |
1704 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); | |
1705 | if (!xfs_ioend_zone) | |
bf904248 | 1706 | goto out; |
9f8868ff CH |
1707 | |
1708 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, | |
1709 | xfs_ioend_zone); | |
1710 | if (!xfs_ioend_pool) | |
1711 | goto out_destroy_ioend_zone; | |
1712 | ||
1713 | xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t), | |
1714 | "xfs_log_ticket"); | |
1715 | if (!xfs_log_ticket_zone) | |
1716 | goto out_destroy_ioend_pool; | |
1717 | ||
1718 | xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t), | |
1719 | "xfs_bmap_free_item"); | |
1720 | if (!xfs_bmap_free_item_zone) | |
1721 | goto out_destroy_log_ticket_zone; | |
bf904248 | 1722 | |
9f8868ff CH |
1723 | xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t), |
1724 | "xfs_btree_cur"); | |
1725 | if (!xfs_btree_cur_zone) | |
1726 | goto out_destroy_bmap_free_item_zone; | |
1727 | ||
1728 | xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t), | |
1729 | "xfs_da_state"); | |
1730 | if (!xfs_da_state_zone) | |
1731 | goto out_destroy_btree_cur_zone; | |
1732 | ||
1733 | xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf"); | |
1734 | if (!xfs_dabuf_zone) | |
1735 | goto out_destroy_da_state_zone; | |
1736 | ||
1737 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); | |
1738 | if (!xfs_ifork_zone) | |
1739 | goto out_destroy_dabuf_zone; | |
1740 | ||
1741 | xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans"); | |
1742 | if (!xfs_trans_zone) | |
1743 | goto out_destroy_ifork_zone; | |
1744 | ||
1745 | /* | |
1746 | * The size of the zone allocated buf log item is the maximum | |
1747 | * size possible under XFS. This wastes a little bit of memory, | |
1748 | * but it is much faster. | |
1749 | */ | |
1750 | xfs_buf_item_zone = kmem_zone_init((sizeof(xfs_buf_log_item_t) + | |
1751 | (((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) / | |
1752 | NBWORD) * sizeof(int))), "xfs_buf_item"); | |
1753 | if (!xfs_buf_item_zone) | |
1754 | goto out_destroy_trans_zone; | |
1755 | ||
1756 | xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) + | |
1757 | ((XFS_EFD_MAX_FAST_EXTENTS - 1) * | |
1758 | sizeof(xfs_extent_t))), "xfs_efd_item"); | |
1759 | if (!xfs_efd_zone) | |
1760 | goto out_destroy_buf_item_zone; | |
1761 | ||
1762 | xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) + | |
1763 | ((XFS_EFI_MAX_FAST_EXTENTS - 1) * | |
1764 | sizeof(xfs_extent_t))), "xfs_efi_item"); | |
1765 | if (!xfs_efi_zone) | |
1766 | goto out_destroy_efd_zone; | |
1767 | ||
1768 | xfs_inode_zone = | |
1769 | kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode", | |
bf904248 DC |
1770 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | KM_ZONE_SPREAD, |
1771 | xfs_fs_inode_init_once); | |
9f8868ff CH |
1772 | if (!xfs_inode_zone) |
1773 | goto out_destroy_efi_zone; | |
1774 | ||
1775 | xfs_ili_zone = | |
1776 | kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili", | |
1777 | KM_ZONE_SPREAD, NULL); | |
1778 | if (!xfs_ili_zone) | |
1779 | goto out_destroy_inode_zone; | |
1780 | ||
1781 | #ifdef CONFIG_XFS_POSIX_ACL | |
1782 | xfs_acl_zone = kmem_zone_init(sizeof(xfs_acl_t), "xfs_acl"); | |
1783 | if (!xfs_acl_zone) | |
1784 | goto out_destroy_ili_zone; | |
1785 | #endif | |
1786 | ||
1787 | return 0; | |
1788 | ||
1789 | #ifdef CONFIG_XFS_POSIX_ACL | |
1790 | out_destroy_ili_zone: | |
1791 | #endif | |
1792 | kmem_zone_destroy(xfs_ili_zone); | |
1793 | out_destroy_inode_zone: | |
1794 | kmem_zone_destroy(xfs_inode_zone); | |
1795 | out_destroy_efi_zone: | |
1796 | kmem_zone_destroy(xfs_efi_zone); | |
1797 | out_destroy_efd_zone: | |
1798 | kmem_zone_destroy(xfs_efd_zone); | |
1799 | out_destroy_buf_item_zone: | |
1800 | kmem_zone_destroy(xfs_buf_item_zone); | |
1801 | out_destroy_trans_zone: | |
1802 | kmem_zone_destroy(xfs_trans_zone); | |
1803 | out_destroy_ifork_zone: | |
1804 | kmem_zone_destroy(xfs_ifork_zone); | |
1805 | out_destroy_dabuf_zone: | |
1806 | kmem_zone_destroy(xfs_dabuf_zone); | |
1807 | out_destroy_da_state_zone: | |
1808 | kmem_zone_destroy(xfs_da_state_zone); | |
1809 | out_destroy_btree_cur_zone: | |
1810 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1811 | out_destroy_bmap_free_item_zone: | |
1812 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1813 | out_destroy_log_ticket_zone: | |
1814 | kmem_zone_destroy(xfs_log_ticket_zone); | |
1815 | out_destroy_ioend_pool: | |
1816 | mempool_destroy(xfs_ioend_pool); | |
1817 | out_destroy_ioend_zone: | |
1818 | kmem_zone_destroy(xfs_ioend_zone); | |
9f8868ff CH |
1819 | out: |
1820 | return -ENOMEM; | |
1821 | } | |
1822 | ||
1823 | STATIC void | |
1824 | xfs_destroy_zones(void) | |
1825 | { | |
1826 | #ifdef CONFIG_XFS_POSIX_ACL | |
1827 | kmem_zone_destroy(xfs_acl_zone); | |
1828 | #endif | |
1829 | kmem_zone_destroy(xfs_ili_zone); | |
1830 | kmem_zone_destroy(xfs_inode_zone); | |
1831 | kmem_zone_destroy(xfs_efi_zone); | |
1832 | kmem_zone_destroy(xfs_efd_zone); | |
1833 | kmem_zone_destroy(xfs_buf_item_zone); | |
1834 | kmem_zone_destroy(xfs_trans_zone); | |
1835 | kmem_zone_destroy(xfs_ifork_zone); | |
1836 | kmem_zone_destroy(xfs_dabuf_zone); | |
1837 | kmem_zone_destroy(xfs_da_state_zone); | |
1838 | kmem_zone_destroy(xfs_btree_cur_zone); | |
1839 | kmem_zone_destroy(xfs_bmap_free_item_zone); | |
1840 | kmem_zone_destroy(xfs_log_ticket_zone); | |
1841 | mempool_destroy(xfs_ioend_pool); | |
1842 | kmem_zone_destroy(xfs_ioend_zone); | |
9f8868ff CH |
1843 | |
1844 | } | |
1da177e4 LT |
1845 | |
1846 | STATIC int __init | |
9f8868ff | 1847 | init_xfs_fs(void) |
1da177e4 LT |
1848 | { |
1849 | int error; | |
1da177e4 LT |
1850 | static char message[] __initdata = KERN_INFO \ |
1851 | XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n"; | |
1852 | ||
1853 | printk(message); | |
1854 | ||
1da177e4 | 1855 | ktrace_init(64); |
9f8868ff CH |
1856 | vn_init(); |
1857 | xfs_dir_startup(); | |
1da177e4 | 1858 | |
8758280f | 1859 | error = xfs_init_zones(); |
9f8868ff CH |
1860 | if (error) |
1861 | goto out; | |
1862 | ||
1863 | error = xfs_alloc_trace_bufs(); | |
1864 | if (error) | |
1865 | goto out_destroy_zones; | |
1866 | ||
1867 | error = xfs_mru_cache_init(); | |
1868 | if (error) | |
1869 | goto out_free_trace_buffers; | |
1870 | ||
1871 | error = xfs_filestream_init(); | |
1872 | if (error) | |
1873 | goto out_mru_cache_uninit; | |
1da177e4 | 1874 | |
ce8e922c | 1875 | error = xfs_buf_init(); |
9f8868ff CH |
1876 | if (error) |
1877 | goto out_filestream_uninit; | |
1878 | ||
1879 | error = xfs_init_procfs(); | |
1880 | if (error) | |
1881 | goto out_buf_terminate; | |
1882 | ||
1883 | error = xfs_sysctl_register(); | |
1884 | if (error) | |
1885 | goto out_cleanup_procfs; | |
1da177e4 | 1886 | |
1da177e4 LT |
1887 | vfs_initquota(); |
1888 | ||
1889 | error = register_filesystem(&xfs_fs_type); | |
1890 | if (error) | |
9f8868ff | 1891 | goto out_sysctl_unregister; |
1da177e4 LT |
1892 | return 0; |
1893 | ||
9f8868ff CH |
1894 | out_sysctl_unregister: |
1895 | xfs_sysctl_unregister(); | |
1896 | out_cleanup_procfs: | |
1897 | xfs_cleanup_procfs(); | |
1898 | out_buf_terminate: | |
ce8e922c | 1899 | xfs_buf_terminate(); |
9f8868ff CH |
1900 | out_filestream_uninit: |
1901 | xfs_filestream_uninit(); | |
1902 | out_mru_cache_uninit: | |
1903 | xfs_mru_cache_uninit(); | |
1904 | out_free_trace_buffers: | |
1905 | xfs_free_trace_bufs(); | |
1906 | out_destroy_zones: | |
8758280f | 1907 | xfs_destroy_zones(); |
9f8868ff | 1908 | out: |
1da177e4 LT |
1909 | return error; |
1910 | } | |
1911 | ||
1912 | STATIC void __exit | |
9f8868ff | 1913 | exit_xfs_fs(void) |
1da177e4 LT |
1914 | { |
1915 | vfs_exitquota(); | |
1da177e4 | 1916 | unregister_filesystem(&xfs_fs_type); |
9f8868ff CH |
1917 | xfs_sysctl_unregister(); |
1918 | xfs_cleanup_procfs(); | |
ce8e922c | 1919 | xfs_buf_terminate(); |
9f8868ff CH |
1920 | xfs_filestream_uninit(); |
1921 | xfs_mru_cache_uninit(); | |
1922 | xfs_free_trace_bufs(); | |
8758280f | 1923 | xfs_destroy_zones(); |
1da177e4 LT |
1924 | ktrace_uninit(); |
1925 | } | |
1926 | ||
1927 | module_init(init_xfs_fs); | |
1928 | module_exit(exit_xfs_fs); | |
1929 | ||
1930 | MODULE_AUTHOR("Silicon Graphics, Inc."); | |
1931 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); | |
1932 | MODULE_LICENSE("GPL"); |