]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/fs/ufs/super.c | |
3 | * | |
4 | * Copyright (C) 1998 | |
5 | * Daniel Pirkl <daniel.pirkl@email.cz> | |
6 | * Charles University, Faculty of Mathematics and Physics | |
7 | */ | |
8 | ||
9 | /* Derived from | |
10 | * | |
11 | * linux/fs/ext2/super.c | |
12 | * | |
13 | * Copyright (C) 1992, 1993, 1994, 1995 | |
14 | * Remy Card (card@masi.ibp.fr) | |
15 | * Laboratoire MASI - Institut Blaise Pascal | |
16 | * Universite Pierre et Marie Curie (Paris VI) | |
17 | * | |
18 | * from | |
19 | * | |
20 | * linux/fs/minix/inode.c | |
21 | * | |
22 | * Copyright (C) 1991, 1992 Linus Torvalds | |
23 | * | |
24 | * Big-endian to little-endian byte-swapping/bitmaps by | |
25 | * David S. Miller (davem@caip.rutgers.edu), 1995 | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Inspired by | |
30 | * | |
31 | * linux/fs/ufs/super.c | |
32 | * | |
33 | * Copyright (C) 1996 | |
34 | * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) | |
35 | * Laboratory for Computer Science Research Computing Facility | |
36 | * Rutgers, The State University of New Jersey | |
37 | * | |
38 | * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) | |
39 | * | |
40 | * Kernel module support added on 96/04/26 by | |
41 | * Stefan Reinauer <stepan@home.culture.mipt.ru> | |
42 | * | |
43 | * Module usage counts added on 96/04/29 by | |
f762dd68 | 44 | * Gertjan van Wingerde <gwingerde@gmail.com> |
1da177e4 LT |
45 | * |
46 | * Clean swab support on 19970406 by | |
47 | * Francois-Rene Rideau <fare@tunes.org> | |
48 | * | |
49 | * 4.4BSD (FreeBSD) support added on February 1st 1998 by | |
50 | * Niels Kristian Bech Jensen <nkbj@image.dk> partially based | |
51 | * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. | |
52 | * | |
53 | * NeXTstep support added on February 5th 1998 by | |
54 | * Niels Kristian Bech Jensen <nkbj@image.dk>. | |
55 | * | |
56 | * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998 | |
57 | * | |
58 | * HP/UX hfs filesystem support added by | |
59 | * Martin K. Petersen <mkp@mkp.net>, August 1999 | |
60 | * | |
61 | * UFS2 (of FreeBSD 5.x) support added by | |
62 | * Niraj Kumar <niraj17@iitbombay.org>, Jan 2004 | |
63 | * | |
cbcae39f ED |
64 | * UFS2 write support added by |
65 | * Evgeniy Dushistov <dushistov@mail.ru>, 2007 | |
1da177e4 LT |
66 | */ |
67 | ||
68 | ||
f3e2a520 | 69 | #include <linux/exportfs.h> |
1da177e4 LT |
70 | #include <linux/module.h> |
71 | #include <linux/bitops.h> | |
72 | ||
73 | #include <stdarg.h> | |
74 | ||
75 | #include <asm/uaccess.h> | |
1da177e4 LT |
76 | |
77 | #include <linux/errno.h> | |
78 | #include <linux/fs.h> | |
1da177e4 LT |
79 | #include <linux/slab.h> |
80 | #include <linux/time.h> | |
81 | #include <linux/stat.h> | |
82 | #include <linux/string.h> | |
83 | #include <linux/blkdev.h> | |
84 | #include <linux/init.h> | |
85 | #include <linux/parser.h> | |
1da177e4 LT |
86 | #include <linux/buffer_head.h> |
87 | #include <linux/vfs.h> | |
9e8c4273 | 88 | #include <linux/log2.h> |
2a9807c0 ED |
89 | #include <linux/mount.h> |
90 | #include <linux/seq_file.h> | |
1da177e4 | 91 | |
e5420598 | 92 | #include "ufs_fs.h" |
bcd6d4ec | 93 | #include "ufs.h" |
1da177e4 LT |
94 | #include "swab.h" |
95 | #include "util.h" | |
96 | ||
788257d6 AB |
97 | void lock_ufs(struct super_block *sb) |
98 | { | |
99 | #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) | |
100 | struct ufs_sb_info *sbi = UFS_SB(sb); | |
101 | ||
102 | mutex_lock(&sbi->mutex); | |
103 | sbi->mutex_owner = current; | |
104 | #endif | |
105 | } | |
106 | ||
107 | void unlock_ufs(struct super_block *sb) | |
108 | { | |
109 | #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) | |
110 | struct ufs_sb_info *sbi = UFS_SB(sb); | |
111 | ||
112 | sbi->mutex_owner = NULL; | |
113 | mutex_unlock(&sbi->mutex); | |
114 | #endif | |
115 | } | |
116 | ||
f3e2a520 AD |
117 | static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) |
118 | { | |
119 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
120 | struct inode *inode; | |
121 | ||
122 | if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) | |
123 | return ERR_PTR(-ESTALE); | |
124 | ||
125 | inode = ufs_iget(sb, ino); | |
126 | if (IS_ERR(inode)) | |
127 | return ERR_CAST(inode); | |
128 | if (generation && inode->i_generation != generation) { | |
129 | iput(inode); | |
130 | return ERR_PTR(-ESTALE); | |
131 | } | |
132 | return inode; | |
133 | } | |
134 | ||
135 | static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
136 | int fh_len, int fh_type) | |
137 | { | |
138 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); | |
139 | } | |
140 | ||
141 | static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
142 | int fh_len, int fh_type) | |
143 | { | |
144 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); | |
145 | } | |
146 | ||
147 | static struct dentry *ufs_get_parent(struct dentry *child) | |
148 | { | |
26fe5750 | 149 | struct qstr dot_dot = QSTR_INIT("..", 2); |
f3e2a520 AD |
150 | ino_t ino; |
151 | ||
152 | ino = ufs_inode_by_name(child->d_inode, &dot_dot); | |
153 | if (!ino) | |
154 | return ERR_PTR(-ENOENT); | |
155 | return d_obtain_alias(ufs_iget(child->d_inode->i_sb, ino)); | |
156 | } | |
157 | ||
158 | static const struct export_operations ufs_export_ops = { | |
159 | .fh_to_dentry = ufs_fh_to_dentry, | |
160 | .fh_to_parent = ufs_fh_to_parent, | |
161 | .get_parent = ufs_get_parent, | |
162 | }; | |
163 | ||
abf5d15f | 164 | #ifdef CONFIG_UFS_DEBUG |
1da177e4 LT |
165 | /* |
166 | * Print contents of ufs_super_block, useful for debugging | |
167 | */ | |
3313e292 | 168 | static void ufs_print_super_stuff(struct super_block *sb, |
647b7e87 ED |
169 | struct ufs_super_block_first *usb1, |
170 | struct ufs_super_block_second *usb2, | |
171 | struct ufs_super_block_third *usb3) | |
1da177e4 | 172 | { |
3313e292 ED |
173 | u32 magic = fs32_to_cpu(sb, usb3->fs_magic); |
174 | ||
1da177e4 | 175 | printk("ufs_print_super_stuff\n"); |
3313e292 ED |
176 | printk(" magic: 0x%x\n", magic); |
177 | if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { | |
647b7e87 ED |
178 | printk(" fs_size: %llu\n", (unsigned long long) |
179 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); | |
180 | printk(" fs_dsize: %llu\n", (unsigned long long) | |
181 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); | |
182 | printk(" bsize: %u\n", | |
183 | fs32_to_cpu(sb, usb1->fs_bsize)); | |
184 | printk(" fsize: %u\n", | |
185 | fs32_to_cpu(sb, usb1->fs_fsize)); | |
186 | printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); | |
187 | printk(" fs_sblockloc: %llu\n", (unsigned long long) | |
188 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); | |
189 | printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) | |
190 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); | |
191 | printk(" cs_nbfree(No of free blocks): %llu\n", | |
192 | (unsigned long long) | |
193 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); | |
3313e292 ED |
194 | printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n", |
195 | (unsigned long long) | |
196 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); | |
197 | printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n", | |
198 | (unsigned long long) | |
199 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); | |
90b315af ED |
200 | printk(KERN_INFO" fs_maxsymlinklen: %u\n", |
201 | fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); | |
647b7e87 ED |
202 | } else { |
203 | printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); | |
204 | printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); | |
205 | printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); | |
206 | printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); | |
207 | printk(" cgoffset: %u\n", | |
208 | fs32_to_cpu(sb, usb1->fs_cgoffset)); | |
209 | printk(" ~cgmask: 0x%x\n", | |
210 | ~fs32_to_cpu(sb, usb1->fs_cgmask)); | |
211 | printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); | |
212 | printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); | |
213 | printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); | |
214 | printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); | |
215 | printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); | |
216 | printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); | |
217 | printk(" fragshift: %u\n", | |
218 | fs32_to_cpu(sb, usb1->fs_fragshift)); | |
219 | printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); | |
220 | printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); | |
221 | printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); | |
222 | printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); | |
223 | printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); | |
224 | printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); | |
225 | printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); | |
226 | printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); | |
227 | printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); | |
228 | printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); | |
229 | printk(" fstodb: %u\n", | |
230 | fs32_to_cpu(sb, usb1->fs_fsbtodb)); | |
231 | printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); | |
232 | printk(" ndir %u\n", | |
233 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); | |
234 | printk(" nifree %u\n", | |
235 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); | |
236 | printk(" nbfree %u\n", | |
237 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); | |
238 | printk(" nffree %u\n", | |
239 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); | |
240 | } | |
1da177e4 LT |
241 | printk("\n"); |
242 | } | |
243 | ||
244 | /* | |
245 | * Print contents of ufs_cylinder_group, useful for debugging | |
246 | */ | |
647b7e87 ED |
247 | static void ufs_print_cylinder_stuff(struct super_block *sb, |
248 | struct ufs_cylinder_group *cg) | |
1da177e4 LT |
249 | { |
250 | printk("\nufs_print_cylinder_stuff\n"); | |
96710b29 | 251 | printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); |
1da177e4 LT |
252 | printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); |
253 | printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); | |
254 | printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); | |
255 | printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); | |
256 | printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); | |
257 | printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); | |
258 | printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); | |
259 | printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); | |
260 | printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); | |
261 | printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); | |
262 | printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); | |
263 | printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); | |
264 | printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); | |
265 | printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", | |
266 | fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), | |
267 | fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), | |
268 | fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), | |
269 | fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); | |
270 | printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); | |
271 | printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); | |
272 | printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); | |
273 | printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); | |
274 | printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); | |
647b7e87 ED |
275 | printk(" clustersumoff %u\n", |
276 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); | |
277 | printk(" clusteroff %u\n", | |
278 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); | |
279 | printk(" nclusterblks %u\n", | |
280 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); | |
1da177e4 LT |
281 | printk("\n"); |
282 | } | |
647b7e87 | 283 | #else |
3313e292 | 284 | # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ |
647b7e87 | 285 | # define ufs_print_cylinder_stuff(sb, cg) /**/ |
abf5d15f | 286 | #endif /* CONFIG_UFS_DEBUG */ |
1da177e4 | 287 | |
ee9b6d61 | 288 | static const struct super_operations ufs_super_ops; |
1da177e4 LT |
289 | |
290 | static char error_buf[1024]; | |
291 | ||
292 | void ufs_error (struct super_block * sb, const char * function, | |
293 | const char * fmt, ...) | |
294 | { | |
295 | struct ufs_sb_private_info * uspi; | |
296 | struct ufs_super_block_first * usb1; | |
297 | va_list args; | |
298 | ||
299 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 300 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 LT |
301 | |
302 | if (!(sb->s_flags & MS_RDONLY)) { | |
303 | usb1->fs_clean = UFS_FSBAD; | |
9695ef16 | 304 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); |
1da177e4 LT |
305 | sb->s_dirt = 1; |
306 | sb->s_flags |= MS_RDONLY; | |
307 | } | |
308 | va_start (args, fmt); | |
4a6e617a | 309 | vsnprintf (error_buf, sizeof(error_buf), fmt, args); |
1da177e4 LT |
310 | va_end (args); |
311 | switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { | |
312 | case UFS_MOUNT_ONERROR_PANIC: | |
313 | panic ("UFS-fs panic (device %s): %s: %s\n", | |
314 | sb->s_id, function, error_buf); | |
315 | ||
316 | case UFS_MOUNT_ONERROR_LOCK: | |
317 | case UFS_MOUNT_ONERROR_UMOUNT: | |
318 | case UFS_MOUNT_ONERROR_REPAIR: | |
319 | printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", | |
320 | sb->s_id, function, error_buf); | |
321 | } | |
322 | } | |
323 | ||
324 | void ufs_panic (struct super_block * sb, const char * function, | |
325 | const char * fmt, ...) | |
326 | { | |
327 | struct ufs_sb_private_info * uspi; | |
328 | struct ufs_super_block_first * usb1; | |
329 | va_list args; | |
330 | ||
331 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 332 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 LT |
333 | |
334 | if (!(sb->s_flags & MS_RDONLY)) { | |
335 | usb1->fs_clean = UFS_FSBAD; | |
9695ef16 | 336 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); |
1da177e4 LT |
337 | sb->s_dirt = 1; |
338 | } | |
339 | va_start (args, fmt); | |
4a6e617a | 340 | vsnprintf (error_buf, sizeof(error_buf), fmt, args); |
1da177e4 LT |
341 | va_end (args); |
342 | sb->s_flags |= MS_RDONLY; | |
343 | printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", | |
344 | sb->s_id, function, error_buf); | |
345 | } | |
346 | ||
347 | void ufs_warning (struct super_block * sb, const char * function, | |
348 | const char * fmt, ...) | |
349 | { | |
350 | va_list args; | |
351 | ||
352 | va_start (args, fmt); | |
4a6e617a | 353 | vsnprintf (error_buf, sizeof(error_buf), fmt, args); |
1da177e4 LT |
354 | va_end (args); |
355 | printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", | |
356 | sb->s_id, function, error_buf); | |
357 | } | |
358 | ||
359 | enum { | |
2a9807c0 ED |
360 | Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, |
361 | Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, | |
362 | Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, | |
363 | Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, | |
364 | Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, | |
365 | Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, | |
366 | Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, | |
367 | Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, | |
368 | Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, | |
369 | Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, | |
370 | Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, | |
371 | Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, | |
372 | Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, | |
373 | Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, | |
374 | Opt_err | |
1da177e4 LT |
375 | }; |
376 | ||
a447c093 | 377 | static const match_table_t tokens = { |
1da177e4 LT |
378 | {Opt_type_old, "ufstype=old"}, |
379 | {Opt_type_sunx86, "ufstype=sunx86"}, | |
380 | {Opt_type_sun, "ufstype=sun"}, | |
252e211e | 381 | {Opt_type_sunos, "ufstype=sunos"}, |
1da177e4 LT |
382 | {Opt_type_44bsd, "ufstype=44bsd"}, |
383 | {Opt_type_ufs2, "ufstype=ufs2"}, | |
384 | {Opt_type_ufs2, "ufstype=5xbsd"}, | |
385 | {Opt_type_hp, "ufstype=hp"}, | |
386 | {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, | |
387 | {Opt_type_nextstep, "ufstype=nextstep"}, | |
388 | {Opt_type_openstep, "ufstype=openstep"}, | |
2a9807c0 | 389 | /*end of possible ufs types */ |
1da177e4 LT |
390 | {Opt_onerror_panic, "onerror=panic"}, |
391 | {Opt_onerror_lock, "onerror=lock"}, | |
392 | {Opt_onerror_umount, "onerror=umount"}, | |
393 | {Opt_onerror_repair, "onerror=repair"}, | |
394 | {Opt_err, NULL} | |
395 | }; | |
396 | ||
397 | static int ufs_parse_options (char * options, unsigned * mount_options) | |
398 | { | |
399 | char * p; | |
400 | ||
abf5d15f | 401 | UFSD("ENTER\n"); |
1da177e4 LT |
402 | |
403 | if (!options) | |
404 | return 1; | |
405 | ||
406 | while ((p = strsep(&options, ",")) != NULL) { | |
407 | substring_t args[MAX_OPT_ARGS]; | |
408 | int token; | |
409 | if (!*p) | |
410 | continue; | |
411 | ||
412 | token = match_token(p, tokens, args); | |
413 | switch (token) { | |
414 | case Opt_type_old: | |
415 | ufs_clear_opt (*mount_options, UFSTYPE); | |
416 | ufs_set_opt (*mount_options, UFSTYPE_OLD); | |
417 | break; | |
418 | case Opt_type_sunx86: | |
419 | ufs_clear_opt (*mount_options, UFSTYPE); | |
420 | ufs_set_opt (*mount_options, UFSTYPE_SUNx86); | |
421 | break; | |
422 | case Opt_type_sun: | |
423 | ufs_clear_opt (*mount_options, UFSTYPE); | |
424 | ufs_set_opt (*mount_options, UFSTYPE_SUN); | |
425 | break; | |
252e211e MF |
426 | case Opt_type_sunos: |
427 | ufs_clear_opt(*mount_options, UFSTYPE); | |
428 | ufs_set_opt(*mount_options, UFSTYPE_SUNOS); | |
429 | break; | |
1da177e4 LT |
430 | case Opt_type_44bsd: |
431 | ufs_clear_opt (*mount_options, UFSTYPE); | |
432 | ufs_set_opt (*mount_options, UFSTYPE_44BSD); | |
433 | break; | |
434 | case Opt_type_ufs2: | |
435 | ufs_clear_opt(*mount_options, UFSTYPE); | |
436 | ufs_set_opt(*mount_options, UFSTYPE_UFS2); | |
437 | break; | |
438 | case Opt_type_hp: | |
439 | ufs_clear_opt (*mount_options, UFSTYPE); | |
440 | ufs_set_opt (*mount_options, UFSTYPE_HP); | |
441 | break; | |
442 | case Opt_type_nextstepcd: | |
443 | ufs_clear_opt (*mount_options, UFSTYPE); | |
444 | ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); | |
445 | break; | |
446 | case Opt_type_nextstep: | |
447 | ufs_clear_opt (*mount_options, UFSTYPE); | |
448 | ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); | |
449 | break; | |
450 | case Opt_type_openstep: | |
451 | ufs_clear_opt (*mount_options, UFSTYPE); | |
452 | ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); | |
453 | break; | |
454 | case Opt_onerror_panic: | |
455 | ufs_clear_opt (*mount_options, ONERROR); | |
456 | ufs_set_opt (*mount_options, ONERROR_PANIC); | |
457 | break; | |
458 | case Opt_onerror_lock: | |
459 | ufs_clear_opt (*mount_options, ONERROR); | |
460 | ufs_set_opt (*mount_options, ONERROR_LOCK); | |
461 | break; | |
462 | case Opt_onerror_umount: | |
463 | ufs_clear_opt (*mount_options, ONERROR); | |
464 | ufs_set_opt (*mount_options, ONERROR_UMOUNT); | |
465 | break; | |
466 | case Opt_onerror_repair: | |
467 | printk("UFS-fs: Unable to do repair on error, " | |
468 | "will lock lock instead\n"); | |
469 | ufs_clear_opt (*mount_options, ONERROR); | |
470 | ufs_set_opt (*mount_options, ONERROR_REPAIR); | |
471 | break; | |
472 | default: | |
473 | printk("UFS-fs: Invalid option: \"%s\" " | |
474 | "or missing value\n", p); | |
475 | return 0; | |
476 | } | |
477 | } | |
478 | return 1; | |
479 | } | |
480 | ||
481 | /* | |
25985edc LDM |
482 | * Different types of UFS hold fs_cstotal in different |
483 | * places, and use different data structure for it. | |
484 | * To make things simpler we just copy fs_cstotal to ufs_sb_private_info | |
1da177e4 | 485 | */ |
ee3ffd6c | 486 | static void ufs_setup_cstotal(struct super_block *sb) |
e295cfcb | 487 | { |
647b7e87 ED |
488 | struct ufs_sb_info *sbi = UFS_SB(sb); |
489 | struct ufs_sb_private_info *uspi = sbi->s_uspi; | |
ee3ffd6c ED |
490 | struct ufs_super_block_first *usb1; |
491 | struct ufs_super_block_second *usb2; | |
647b7e87 | 492 | struct ufs_super_block_third *usb3; |
ee3ffd6c ED |
493 | unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; |
494 | ||
495 | UFSD("ENTER, mtype=%u\n", mtype); | |
496 | usb1 = ubh_get_usb_first(uspi); | |
497 | usb2 = ubh_get_usb_second(uspi); | |
498 | usb3 = ubh_get_usb_third(uspi); | |
499 | ||
500 | if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && | |
501 | (usb1->fs_flags & UFS_FLAGS_UPDATED)) || | |
502 | mtype == UFS_MOUNT_UFSTYPE_UFS2) { | |
503 | /*we have statistic in different place, then usual*/ | |
504 | uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); | |
505 | uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); | |
506 | uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); | |
507 | uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); | |
508 | } else { | |
509 | uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); | |
510 | uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); | |
511 | uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); | |
512 | uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); | |
513 | } | |
514 | UFSD("EXIT\n"); | |
515 | } | |
516 | ||
517 | /* | |
518 | * Read on-disk structures associated with cylinder groups | |
519 | */ | |
520 | static int ufs_read_cylinder_structures(struct super_block *sb) | |
521 | { | |
522 | struct ufs_sb_info *sbi = UFS_SB(sb); | |
523 | struct ufs_sb_private_info *uspi = sbi->s_uspi; | |
1da177e4 LT |
524 | struct ufs_buffer_head * ubh; |
525 | unsigned char * base, * space; | |
526 | unsigned size, blks, i; | |
ee3ffd6c ED |
527 | struct ufs_super_block_third *usb3; |
528 | ||
abf5d15f | 529 | UFSD("ENTER\n"); |
1da177e4 | 530 | |
ee3ffd6c | 531 | usb3 = ubh_get_usb_third(uspi); |
1da177e4 LT |
532 | /* |
533 | * Read cs structures from (usually) first data block | |
534 | * on the device. | |
535 | */ | |
536 | size = uspi->s_cssize; | |
537 | blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; | |
788257d6 | 538 | base = space = kmalloc(size, GFP_NOFS); |
1da177e4 LT |
539 | if (!base) |
540 | goto failed; | |
e295cfcb | 541 | sbi->s_csp = (struct ufs_csum *)space; |
1da177e4 LT |
542 | for (i = 0; i < blks; i += uspi->s_fpb) { |
543 | size = uspi->s_bsize; | |
544 | if (i + uspi->s_fpb > blks) | |
545 | size = (blks - i) * uspi->s_fsize; | |
546 | ||
3313e292 | 547 | ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
7b4ee73e E |
548 | |
549 | if (!ubh) | |
550 | goto failed; | |
551 | ||
552 | ubh_ubhcpymem (space, ubh, size); | |
7b4ee73e | 553 | |
1da177e4 LT |
554 | space += size; |
555 | ubh_brelse (ubh); | |
556 | ubh = NULL; | |
557 | } | |
558 | ||
559 | /* | |
560 | * Read cylinder group (we read only first fragment from block | |
561 | * at this time) and prepare internal data structures for cg caching. | |
562 | */ | |
788257d6 | 563 | if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_NOFS))) |
1da177e4 LT |
564 | goto failed; |
565 | for (i = 0; i < uspi->s_ncg; i++) | |
566 | sbi->s_ucg[i] = NULL; | |
567 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { | |
568 | sbi->s_ucpi[i] = NULL; | |
569 | sbi->s_cgno[i] = UFS_CGNO_EMPTY; | |
570 | } | |
571 | for (i = 0; i < uspi->s_ncg; i++) { | |
abf5d15f | 572 | UFSD("read cg %u\n", i); |
1da177e4 LT |
573 | if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) |
574 | goto failed; | |
575 | if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) | |
576 | goto failed; | |
647b7e87 | 577 | |
1da177e4 | 578 | ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); |
1da177e4 LT |
579 | } |
580 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { | |
788257d6 | 581 | if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_NOFS))) |
1da177e4 LT |
582 | goto failed; |
583 | sbi->s_cgno[i] = UFS_CGNO_EMPTY; | |
584 | } | |
585 | sbi->s_cg_loaded = 0; | |
abf5d15f | 586 | UFSD("EXIT\n"); |
1da177e4 LT |
587 | return 1; |
588 | ||
589 | failed: | |
f99d49ad | 590 | kfree (base); |
1da177e4 LT |
591 | if (sbi->s_ucg) { |
592 | for (i = 0; i < uspi->s_ncg; i++) | |
f99d49ad JJ |
593 | if (sbi->s_ucg[i]) |
594 | brelse (sbi->s_ucg[i]); | |
1da177e4 LT |
595 | kfree (sbi->s_ucg); |
596 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) | |
f99d49ad | 597 | kfree (sbi->s_ucpi[i]); |
1da177e4 | 598 | } |
abf5d15f | 599 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
600 | return 0; |
601 | } | |
602 | ||
603 | /* | |
ee3ffd6c | 604 | * Sync our internal copy of fs_cstotal with disk |
1da177e4 | 605 | */ |
ee3ffd6c | 606 | static void ufs_put_cstotal(struct super_block *sb) |
e295cfcb | 607 | { |
ee3ffd6c ED |
608 | unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; |
609 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
610 | struct ufs_super_block_first *usb1; | |
611 | struct ufs_super_block_second *usb2; | |
612 | struct ufs_super_block_third *usb3; | |
613 | ||
614 | UFSD("ENTER\n"); | |
615 | usb1 = ubh_get_usb_first(uspi); | |
616 | usb2 = ubh_get_usb_second(uspi); | |
617 | usb3 = ubh_get_usb_third(uspi); | |
618 | ||
619 | if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && | |
620 | (usb1->fs_flags & UFS_FLAGS_UPDATED)) || | |
621 | mtype == UFS_MOUNT_UFSTYPE_UFS2) { | |
622 | /*we have statistic in different place, then usual*/ | |
623 | usb2->fs_un.fs_u2.cs_ndir = | |
624 | cpu_to_fs64(sb, uspi->cs_total.cs_ndir); | |
625 | usb2->fs_un.fs_u2.cs_nbfree = | |
626 | cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); | |
627 | usb3->fs_un1.fs_u2.cs_nifree = | |
628 | cpu_to_fs64(sb, uspi->cs_total.cs_nifree); | |
629 | usb3->fs_un1.fs_u2.cs_nffree = | |
630 | cpu_to_fs64(sb, uspi->cs_total.cs_nffree); | |
631 | } else { | |
632 | usb1->fs_cstotal.cs_ndir = | |
633 | cpu_to_fs32(sb, uspi->cs_total.cs_ndir); | |
634 | usb1->fs_cstotal.cs_nbfree = | |
635 | cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); | |
636 | usb1->fs_cstotal.cs_nifree = | |
637 | cpu_to_fs32(sb, uspi->cs_total.cs_nifree); | |
638 | usb1->fs_cstotal.cs_nffree = | |
639 | cpu_to_fs32(sb, uspi->cs_total.cs_nffree); | |
640 | } | |
641 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); | |
3313e292 | 642 | ufs_print_super_stuff(sb, usb1, usb2, usb3); |
ee3ffd6c ED |
643 | UFSD("EXIT\n"); |
644 | } | |
645 | ||
646 | /** | |
647 | * ufs_put_super_internal() - put on-disk intrenal structures | |
648 | * @sb: pointer to super_block structure | |
649 | * Put on-disk structures associated with cylinder groups | |
650 | * and write them back to disk, also update cs_total on disk | |
651 | */ | |
652 | static void ufs_put_super_internal(struct super_block *sb) | |
653 | { | |
654 | struct ufs_sb_info *sbi = UFS_SB(sb); | |
655 | struct ufs_sb_private_info *uspi = sbi->s_uspi; | |
1da177e4 LT |
656 | struct ufs_buffer_head * ubh; |
657 | unsigned char * base, * space; | |
658 | unsigned blks, size, i; | |
ee3ffd6c | 659 | |
1da177e4 | 660 | |
abf5d15f | 661 | UFSD("ENTER\n"); |
6cfd0148 | 662 | |
ee3ffd6c | 663 | ufs_put_cstotal(sb); |
1da177e4 LT |
664 | size = uspi->s_cssize; |
665 | blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; | |
e295cfcb | 666 | base = space = (char*) sbi->s_csp; |
1da177e4 LT |
667 | for (i = 0; i < blks; i += uspi->s_fpb) { |
668 | size = uspi->s_bsize; | |
669 | if (i + uspi->s_fpb > blks) | |
670 | size = (blks - i) * uspi->s_fsize; | |
3313e292 | 671 | |
1da177e4 | 672 | ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
3313e292 | 673 | |
1da177e4 LT |
674 | ubh_memcpyubh (ubh, space, size); |
675 | space += size; | |
676 | ubh_mark_buffer_uptodate (ubh, 1); | |
677 | ubh_mark_buffer_dirty (ubh); | |
678 | ubh_brelse (ubh); | |
679 | } | |
680 | for (i = 0; i < sbi->s_cg_loaded; i++) { | |
681 | ufs_put_cylinder (sb, i); | |
682 | kfree (sbi->s_ucpi[i]); | |
683 | } | |
684 | for (; i < UFS_MAX_GROUP_LOADED; i++) | |
685 | kfree (sbi->s_ucpi[i]); | |
686 | for (i = 0; i < uspi->s_ncg; i++) | |
687 | brelse (sbi->s_ucg[i]); | |
688 | kfree (sbi->s_ucg); | |
689 | kfree (base); | |
6cfd0148 | 690 | |
abf5d15f | 691 | UFSD("EXIT\n"); |
1da177e4 LT |
692 | } |
693 | ||
694 | static int ufs_fill_super(struct super_block *sb, void *data, int silent) | |
695 | { | |
696 | struct ufs_sb_info * sbi; | |
697 | struct ufs_sb_private_info * uspi; | |
698 | struct ufs_super_block_first * usb1; | |
699 | struct ufs_super_block_second * usb2; | |
700 | struct ufs_super_block_third * usb3; | |
1da177e4 LT |
701 | struct ufs_buffer_head * ubh; |
702 | struct inode *inode; | |
703 | unsigned block_size, super_block_size; | |
704 | unsigned flags; | |
7b4ee73e | 705 | unsigned super_block_offset; |
9e6766cc | 706 | unsigned maxsymlen; |
b55c460d | 707 | int ret = -EINVAL; |
1da177e4 LT |
708 | |
709 | uspi = NULL; | |
710 | ubh = NULL; | |
711 | flags = 0; | |
712 | ||
abf5d15f | 713 | UFSD("ENTER\n"); |
1da177e4 | 714 | |
f8314dc6 | 715 | sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); |
1da177e4 LT |
716 | if (!sbi) |
717 | goto failed_nomem; | |
718 | sb->s_fs_info = sbi; | |
1da177e4 | 719 | |
abf5d15f | 720 | UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); |
1da177e4 LT |
721 | |
722 | #ifndef CONFIG_UFS_FS_WRITE | |
723 | if (!(sb->s_flags & MS_RDONLY)) { | |
724 | printk("ufs was compiled with read-only support, " | |
725 | "can't be mounted as read-write\n"); | |
726 | goto failed; | |
727 | } | |
728 | #endif | |
788257d6 | 729 | mutex_init(&sbi->mutex); |
1da177e4 LT |
730 | /* |
731 | * Set default mount options | |
732 | * Parse mount options | |
733 | */ | |
734 | sbi->s_mount_opt = 0; | |
735 | ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); | |
736 | if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { | |
737 | printk("wrong mount options\n"); | |
738 | goto failed; | |
739 | } | |
740 | if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { | |
741 | if (!silent) | |
742 | printk("You didn't specify the type of your ufs filesystem\n\n" | |
743 | "mount -t ufs -o ufstype=" | |
c690a722 | 744 | "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" |
1da177e4 LT |
745 | ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " |
746 | "default is ufstype=old\n"); | |
747 | ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); | |
748 | } | |
749 | ||
252e211e MF |
750 | uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); |
751 | sbi->s_uspi = uspi; | |
1da177e4 LT |
752 | if (!uspi) |
753 | goto failed; | |
f336953b | 754 | uspi->s_dirblksize = UFS_SECTOR_SIZE; |
7b4ee73e E |
755 | super_block_offset=UFS_SBLOCK; |
756 | ||
1da177e4 LT |
757 | /* Keep 2Gig file limit. Some UFS variants need to override |
758 | this but as I don't know which I'll let those in the know loosen | |
759 | the rules */ | |
1da177e4 LT |
760 | switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { |
761 | case UFS_MOUNT_UFSTYPE_44BSD: | |
abf5d15f | 762 | UFSD("ufstype=44bsd\n"); |
1da177e4 LT |
763 | uspi->s_fsize = block_size = 512; |
764 | uspi->s_fmask = ~(512 - 1); | |
765 | uspi->s_fshift = 9; | |
766 | uspi->s_sbsize = super_block_size = 1536; | |
767 | uspi->s_sbbase = 0; | |
768 | flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; | |
769 | break; | |
770 | case UFS_MOUNT_UFSTYPE_UFS2: | |
abf5d15f | 771 | UFSD("ufstype=ufs2\n"); |
7b4ee73e | 772 | super_block_offset=SBLOCK_UFS2; |
1da177e4 LT |
773 | uspi->s_fsize = block_size = 512; |
774 | uspi->s_fmask = ~(512 - 1); | |
775 | uspi->s_fshift = 9; | |
776 | uspi->s_sbsize = super_block_size = 1536; | |
777 | uspi->s_sbbase = 0; | |
778 | flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; | |
1da177e4 LT |
779 | break; |
780 | ||
781 | case UFS_MOUNT_UFSTYPE_SUN: | |
abf5d15f | 782 | UFSD("ufstype=sun\n"); |
1da177e4 LT |
783 | uspi->s_fsize = block_size = 1024; |
784 | uspi->s_fmask = ~(1024 - 1); | |
785 | uspi->s_fshift = 10; | |
786 | uspi->s_sbsize = super_block_size = 2048; | |
787 | uspi->s_sbbase = 0; | |
252e211e | 788 | uspi->s_maxsymlinklen = 0; /* Not supported on disk */ |
1da177e4 LT |
789 | flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; |
790 | break; | |
791 | ||
252e211e MF |
792 | case UFS_MOUNT_UFSTYPE_SUNOS: |
793 | UFSD(("ufstype=sunos\n")) | |
794 | uspi->s_fsize = block_size = 1024; | |
795 | uspi->s_fmask = ~(1024 - 1); | |
796 | uspi->s_fshift = 10; | |
797 | uspi->s_sbsize = 2048; | |
798 | super_block_size = 2048; | |
799 | uspi->s_sbbase = 0; | |
800 | uspi->s_maxsymlinklen = 0; /* Not supported on disk */ | |
801 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; | |
802 | break; | |
803 | ||
1da177e4 | 804 | case UFS_MOUNT_UFSTYPE_SUNx86: |
abf5d15f | 805 | UFSD("ufstype=sunx86\n"); |
1da177e4 LT |
806 | uspi->s_fsize = block_size = 1024; |
807 | uspi->s_fmask = ~(1024 - 1); | |
808 | uspi->s_fshift = 10; | |
809 | uspi->s_sbsize = super_block_size = 2048; | |
810 | uspi->s_sbbase = 0; | |
252e211e | 811 | uspi->s_maxsymlinklen = 0; /* Not supported on disk */ |
1da177e4 LT |
812 | flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; |
813 | break; | |
814 | ||
815 | case UFS_MOUNT_UFSTYPE_OLD: | |
abf5d15f | 816 | UFSD("ufstype=old\n"); |
1da177e4 LT |
817 | uspi->s_fsize = block_size = 1024; |
818 | uspi->s_fmask = ~(1024 - 1); | |
819 | uspi->s_fshift = 10; | |
820 | uspi->s_sbsize = super_block_size = 2048; | |
821 | uspi->s_sbbase = 0; | |
822 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; | |
823 | if (!(sb->s_flags & MS_RDONLY)) { | |
824 | if (!silent) | |
825 | printk(KERN_INFO "ufstype=old is supported read-only\n"); | |
826 | sb->s_flags |= MS_RDONLY; | |
827 | } | |
828 | break; | |
829 | ||
830 | case UFS_MOUNT_UFSTYPE_NEXTSTEP: | |
abf5d15f | 831 | UFSD("ufstype=nextstep\n"); |
1da177e4 LT |
832 | uspi->s_fsize = block_size = 1024; |
833 | uspi->s_fmask = ~(1024 - 1); | |
834 | uspi->s_fshift = 10; | |
835 | uspi->s_sbsize = super_block_size = 2048; | |
836 | uspi->s_sbbase = 0; | |
0c664f97 | 837 | uspi->s_dirblksize = 1024; |
1da177e4 LT |
838 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
839 | if (!(sb->s_flags & MS_RDONLY)) { | |
840 | if (!silent) | |
841 | printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); | |
842 | sb->s_flags |= MS_RDONLY; | |
843 | } | |
844 | break; | |
845 | ||
846 | case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: | |
abf5d15f | 847 | UFSD("ufstype=nextstep-cd\n"); |
1da177e4 LT |
848 | uspi->s_fsize = block_size = 2048; |
849 | uspi->s_fmask = ~(2048 - 1); | |
850 | uspi->s_fshift = 11; | |
851 | uspi->s_sbsize = super_block_size = 2048; | |
852 | uspi->s_sbbase = 0; | |
0c664f97 | 853 | uspi->s_dirblksize = 1024; |
1da177e4 LT |
854 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
855 | if (!(sb->s_flags & MS_RDONLY)) { | |
856 | if (!silent) | |
857 | printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); | |
858 | sb->s_flags |= MS_RDONLY; | |
859 | } | |
860 | break; | |
861 | ||
862 | case UFS_MOUNT_UFSTYPE_OPENSTEP: | |
abf5d15f | 863 | UFSD("ufstype=openstep\n"); |
1da177e4 LT |
864 | uspi->s_fsize = block_size = 1024; |
865 | uspi->s_fmask = ~(1024 - 1); | |
866 | uspi->s_fshift = 10; | |
867 | uspi->s_sbsize = super_block_size = 2048; | |
868 | uspi->s_sbbase = 0; | |
f336953b | 869 | uspi->s_dirblksize = 1024; |
1da177e4 LT |
870 | flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; |
871 | if (!(sb->s_flags & MS_RDONLY)) { | |
872 | if (!silent) | |
873 | printk(KERN_INFO "ufstype=openstep is supported read-only\n"); | |
874 | sb->s_flags |= MS_RDONLY; | |
875 | } | |
876 | break; | |
877 | ||
878 | case UFS_MOUNT_UFSTYPE_HP: | |
abf5d15f | 879 | UFSD("ufstype=hp\n"); |
1da177e4 LT |
880 | uspi->s_fsize = block_size = 1024; |
881 | uspi->s_fmask = ~(1024 - 1); | |
882 | uspi->s_fshift = 10; | |
883 | uspi->s_sbsize = super_block_size = 2048; | |
884 | uspi->s_sbbase = 0; | |
885 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; | |
886 | if (!(sb->s_flags & MS_RDONLY)) { | |
887 | if (!silent) | |
888 | printk(KERN_INFO "ufstype=hp is supported read-only\n"); | |
889 | sb->s_flags |= MS_RDONLY; | |
890 | } | |
891 | break; | |
892 | default: | |
893 | if (!silent) | |
894 | printk("unknown ufstype\n"); | |
895 | goto failed; | |
896 | } | |
897 | ||
898 | again: | |
899 | if (!sb_set_blocksize(sb, block_size)) { | |
900 | printk(KERN_ERR "UFS: failed to set blocksize\n"); | |
901 | goto failed; | |
902 | } | |
903 | ||
904 | /* | |
905 | * read ufs super block from device | |
906 | */ | |
7b4ee73e E |
907 | |
908 | ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); | |
909 | ||
1da177e4 LT |
910 | if (!ubh) |
911 | goto failed; | |
912 | ||
7b4ee73e E |
913 | usb1 = ubh_get_usb_first(uspi); |
914 | usb2 = ubh_get_usb_second(uspi); | |
915 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 | 916 | |
252e211e MF |
917 | /* Sort out mod used on SunOS 4.1.3 for fs_state */ |
918 | uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); | |
919 | if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && | |
920 | (uspi->s_postblformat != UFS_42POSTBLFMT)) { | |
921 | flags &= ~UFS_ST_MASK; | |
922 | flags |= UFS_ST_SUN; | |
923 | } | |
924 | ||
1da177e4 LT |
925 | /* |
926 | * Check ufs magic number | |
927 | */ | |
928 | sbi->s_bytesex = BYTESEX_LE; | |
929 | switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { | |
930 | case UFS_MAGIC: | |
d27d7a9a | 931 | case UFS_MAGIC_BW: |
1da177e4 LT |
932 | case UFS2_MAGIC: |
933 | case UFS_MAGIC_LFN: | |
934 | case UFS_MAGIC_FEA: | |
935 | case UFS_MAGIC_4GB: | |
936 | goto magic_found; | |
937 | } | |
938 | sbi->s_bytesex = BYTESEX_BE; | |
939 | switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { | |
940 | case UFS_MAGIC: | |
d27d7a9a | 941 | case UFS_MAGIC_BW: |
1da177e4 LT |
942 | case UFS2_MAGIC: |
943 | case UFS_MAGIC_LFN: | |
944 | case UFS_MAGIC_FEA: | |
945 | case UFS_MAGIC_4GB: | |
946 | goto magic_found; | |
947 | } | |
948 | ||
949 | if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) | |
950 | || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) | |
951 | || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) | |
952 | && uspi->s_sbbase < 256) { | |
953 | ubh_brelse_uspi(uspi); | |
954 | ubh = NULL; | |
955 | uspi->s_sbbase += 8; | |
956 | goto again; | |
957 | } | |
958 | if (!silent) | |
959 | printk("ufs_read_super: bad magic number\n"); | |
960 | goto failed; | |
961 | ||
962 | magic_found: | |
963 | /* | |
964 | * Check block and fragment sizes | |
965 | */ | |
966 | uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); | |
967 | uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); | |
968 | uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); | |
969 | uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); | |
970 | uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); | |
971 | ||
9e8c4273 | 972 | if (!is_power_of_2(uspi->s_fsize)) { |
1da177e4 LT |
973 | printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", |
974 | uspi->s_fsize); | |
975 | goto failed; | |
976 | } | |
977 | if (uspi->s_fsize < 512) { | |
978 | printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", | |
979 | uspi->s_fsize); | |
980 | goto failed; | |
981 | } | |
982 | if (uspi->s_fsize > 4096) { | |
983 | printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", | |
984 | uspi->s_fsize); | |
985 | goto failed; | |
986 | } | |
9e8c4273 | 987 | if (!is_power_of_2(uspi->s_bsize)) { |
1da177e4 LT |
988 | printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", |
989 | uspi->s_bsize); | |
990 | goto failed; | |
991 | } | |
992 | if (uspi->s_bsize < 4096) { | |
993 | printk(KERN_ERR "ufs_read_super: block size %u is too small\n", | |
994 | uspi->s_bsize); | |
995 | goto failed; | |
996 | } | |
997 | if (uspi->s_bsize / uspi->s_fsize > 8) { | |
998 | printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", | |
999 | uspi->s_bsize / uspi->s_fsize); | |
1000 | goto failed; | |
1001 | } | |
1002 | if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { | |
1003 | ubh_brelse_uspi(uspi); | |
1004 | ubh = NULL; | |
1005 | block_size = uspi->s_fsize; | |
1006 | super_block_size = uspi->s_sbsize; | |
abf5d15f | 1007 | UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); |
1da177e4 LT |
1008 | goto again; |
1009 | } | |
1010 | ||
f664f1f9 | 1011 | sbi->s_flags = flags;/*after that line some functions use s_flags*/ |
3313e292 | 1012 | ufs_print_super_stuff(sb, usb1, usb2, usb3); |
1da177e4 LT |
1013 | |
1014 | /* | |
1015 | * Check, if file system was correctly unmounted. | |
1016 | * If not, make it read only. | |
1017 | */ | |
f664f1f9 AM |
1018 | if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || |
1019 | ((flags & UFS_ST_MASK) == UFS_ST_OLD) || | |
1020 | (((flags & UFS_ST_MASK) == UFS_ST_SUN || | |
1021 | (flags & UFS_ST_MASK) == UFS_ST_SUNOS || | |
1022 | (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && | |
1023 | (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { | |
1da177e4 LT |
1024 | switch(usb1->fs_clean) { |
1025 | case UFS_FSCLEAN: | |
abf5d15f | 1026 | UFSD("fs is clean\n"); |
1da177e4 LT |
1027 | break; |
1028 | case UFS_FSSTABLE: | |
abf5d15f | 1029 | UFSD("fs is stable\n"); |
b3a0fd4d AV |
1030 | break; |
1031 | case UFS_FSLOG: | |
1032 | UFSD("fs is logging fs\n"); | |
1da177e4 LT |
1033 | break; |
1034 | case UFS_FSOSF1: | |
abf5d15f | 1035 | UFSD("fs is DEC OSF/1\n"); |
1da177e4 LT |
1036 | break; |
1037 | case UFS_FSACTIVE: | |
1038 | printk("ufs_read_super: fs is active\n"); | |
1039 | sb->s_flags |= MS_RDONLY; | |
1040 | break; | |
1041 | case UFS_FSBAD: | |
1042 | printk("ufs_read_super: fs is bad\n"); | |
1043 | sb->s_flags |= MS_RDONLY; | |
1044 | break; | |
1045 | default: | |
1046 | printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); | |
1047 | sb->s_flags |= MS_RDONLY; | |
1048 | break; | |
1049 | } | |
ee3ffd6c | 1050 | } else { |
1da177e4 LT |
1051 | printk("ufs_read_super: fs needs fsck\n"); |
1052 | sb->s_flags |= MS_RDONLY; | |
1053 | } | |
1054 | ||
1055 | /* | |
1056 | * Read ufs_super_block into internal data structures | |
1057 | */ | |
1058 | sb->s_op = &ufs_super_ops; | |
f3e2a520 | 1059 | sb->s_export_op = &ufs_export_ops; |
123e9caf | 1060 | |
1da177e4 LT |
1061 | sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); |
1062 | ||
1063 | uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); | |
1064 | uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); | |
1065 | uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); | |
1066 | uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); | |
1067 | uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); | |
1068 | uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); | |
1069 | ||
1070 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { | |
647b7e87 ED |
1071 | uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); |
1072 | uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); | |
1073 | } else { | |
1da177e4 LT |
1074 | uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); |
1075 | uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); | |
1076 | } | |
1077 | ||
1078 | uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); | |
1079 | /* s_bsize already set */ | |
1080 | /* s_fsize already set */ | |
1081 | uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); | |
1082 | uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); | |
1083 | uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); | |
1084 | uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); | |
1085 | uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); | |
1086 | uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); | |
abf5d15f ED |
1087 | UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, |
1088 | uspi->s_fshift); | |
1da177e4 LT |
1089 | uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); |
1090 | uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); | |
1091 | /* s_sbsize already set */ | |
1092 | uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); | |
1093 | uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); | |
1094 | uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); | |
1095 | uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); | |
1096 | uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); | |
1097 | uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); | |
1098 | uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); | |
1099 | uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); | |
3313e292 ED |
1100 | |
1101 | if (uspi->fs_magic == UFS2_MAGIC) | |
1102 | uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); | |
1103 | else | |
1104 | uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); | |
1105 | ||
1da177e4 LT |
1106 | uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); |
1107 | uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); | |
1108 | uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); | |
1109 | uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); | |
1110 | uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); | |
1111 | uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); | |
1112 | uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); | |
647b7e87 ED |
1113 | uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); |
1114 | uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); | |
1da177e4 LT |
1115 | uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); |
1116 | uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); | |
1da177e4 LT |
1117 | uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); |
1118 | uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); | |
1119 | uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); | |
1120 | ||
1121 | /* | |
1122 | * Compute another frequently used values | |
1123 | */ | |
1124 | uspi->s_fpbmask = uspi->s_fpb - 1; | |
abf5d15f | 1125 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) |
1da177e4 | 1126 | uspi->s_apbshift = uspi->s_bshift - 3; |
abf5d15f | 1127 | else |
1da177e4 | 1128 | uspi->s_apbshift = uspi->s_bshift - 2; |
abf5d15f | 1129 | |
1da177e4 LT |
1130 | uspi->s_2apbshift = uspi->s_apbshift * 2; |
1131 | uspi->s_3apbshift = uspi->s_apbshift * 3; | |
1132 | uspi->s_apb = 1 << uspi->s_apbshift; | |
1133 | uspi->s_2apb = 1 << uspi->s_2apbshift; | |
1134 | uspi->s_3apb = 1 << uspi->s_3apbshift; | |
1135 | uspi->s_apbmask = uspi->s_apb - 1; | |
1136 | uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; | |
1137 | uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; | |
1138 | uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; | |
1139 | uspi->s_bpf = uspi->s_fsize << 3; | |
1140 | uspi->s_bpfshift = uspi->s_fshift + 3; | |
1141 | uspi->s_bpfmask = uspi->s_bpf - 1; | |
90b315af ED |
1142 | if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || |
1143 | (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) | |
1da177e4 | 1144 | uspi->s_maxsymlinklen = |
647b7e87 | 1145 | fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); |
1da177e4 | 1146 | |
9e6766cc DG |
1147 | if (uspi->fs_magic == UFS2_MAGIC) |
1148 | maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); | |
1149 | else | |
1150 | maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); | |
1151 | if (uspi->s_maxsymlinklen > maxsymlen) { | |
1152 | ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " | |
1153 | "fast symlink size (%u)\n", uspi->s_maxsymlinklen); | |
1154 | uspi->s_maxsymlinklen = maxsymlen; | |
1155 | } | |
8de52778 | 1156 | sb->s_max_links = UFS_LINK_MAX; |
9e6766cc | 1157 | |
b55c460d DH |
1158 | inode = ufs_iget(sb, UFS_ROOTINO); |
1159 | if (IS_ERR(inode)) { | |
1160 | ret = PTR_ERR(inode); | |
1da177e4 | 1161 | goto failed; |
b55c460d | 1162 | } |
48fde701 | 1163 | sb->s_root = d_make_root(inode); |
b55c460d DH |
1164 | if (!sb->s_root) { |
1165 | ret = -ENOMEM; | |
48fde701 | 1166 | goto failed; |
b55c460d | 1167 | } |
1da177e4 | 1168 | |
ee3ffd6c | 1169 | ufs_setup_cstotal(sb); |
1da177e4 LT |
1170 | /* |
1171 | * Read cylinder group structures | |
1172 | */ | |
1173 | if (!(sb->s_flags & MS_RDONLY)) | |
1174 | if (!ufs_read_cylinder_structures(sb)) | |
1175 | goto failed; | |
1176 | ||
abf5d15f | 1177 | UFSD("EXIT\n"); |
1da177e4 LT |
1178 | return 0; |
1179 | ||
1da177e4 | 1180 | failed: |
f99d49ad JJ |
1181 | if (ubh) |
1182 | ubh_brelse_uspi (uspi); | |
1183 | kfree (uspi); | |
1184 | kfree(sbi); | |
1da177e4 | 1185 | sb->s_fs_info = NULL; |
abf5d15f | 1186 | UFSD("EXIT (FAILED)\n"); |
b55c460d | 1187 | return ret; |
1da177e4 LT |
1188 | |
1189 | failed_nomem: | |
abf5d15f | 1190 | UFSD("EXIT (NOMEM)\n"); |
1da177e4 LT |
1191 | return -ENOMEM; |
1192 | } | |
1193 | ||
8c800656 | 1194 | static int ufs_sync_fs(struct super_block *sb, int wait) |
647b7e87 | 1195 | { |
1da177e4 LT |
1196 | struct ufs_sb_private_info * uspi; |
1197 | struct ufs_super_block_first * usb1; | |
1198 | struct ufs_super_block_third * usb3; | |
1199 | unsigned flags; | |
1200 | ||
788257d6 | 1201 | lock_ufs(sb); |
ebc1ac16 | 1202 | lock_super(sb); |
8c800656 | 1203 | |
abf5d15f | 1204 | UFSD("ENTER\n"); |
8c800656 | 1205 | |
1da177e4 LT |
1206 | flags = UFS_SB(sb)->s_flags; |
1207 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e E |
1208 | usb1 = ubh_get_usb_first(uspi); |
1209 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 | 1210 | |
8c800656 CH |
1211 | usb1->fs_time = cpu_to_fs32(sb, get_seconds()); |
1212 | if ((flags & UFS_ST_MASK) == UFS_ST_SUN || | |
1213 | (flags & UFS_ST_MASK) == UFS_ST_SUNOS || | |
1214 | (flags & UFS_ST_MASK) == UFS_ST_SUNx86) | |
1215 | ufs_set_fs_state(sb, usb1, usb3, | |
1216 | UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); | |
1217 | ufs_put_cstotal(sb); | |
1da177e4 | 1218 | sb->s_dirt = 0; |
8c800656 | 1219 | |
abf5d15f | 1220 | UFSD("EXIT\n"); |
ebc1ac16 | 1221 | unlock_super(sb); |
788257d6 | 1222 | unlock_ufs(sb); |
8c800656 CH |
1223 | |
1224 | return 0; | |
1225 | } | |
1226 | ||
1227 | static void ufs_write_super(struct super_block *sb) | |
1228 | { | |
1229 | if (!(sb->s_flags & MS_RDONLY)) | |
1230 | ufs_sync_fs(sb, 1); | |
1231 | else | |
1232 | sb->s_dirt = 0; | |
1da177e4 LT |
1233 | } |
1234 | ||
abf5d15f | 1235 | static void ufs_put_super(struct super_block *sb) |
1da177e4 LT |
1236 | { |
1237 | struct ufs_sb_info * sbi = UFS_SB(sb); | |
1238 | ||
abf5d15f | 1239 | UFSD("ENTER\n"); |
1da177e4 | 1240 | |
8c85e125 CH |
1241 | if (sb->s_dirt) |
1242 | ufs_write_super(sb); | |
1243 | ||
1da177e4 | 1244 | if (!(sb->s_flags & MS_RDONLY)) |
ee3ffd6c | 1245 | ufs_put_super_internal(sb); |
1da177e4 LT |
1246 | |
1247 | ubh_brelse_uspi (sbi->s_uspi); | |
1248 | kfree (sbi->s_uspi); | |
1249 | kfree (sbi); | |
1250 | sb->s_fs_info = NULL; | |
647b7e87 | 1251 | UFSD("EXIT\n"); |
1da177e4 LT |
1252 | return; |
1253 | } | |
1254 | ||
1255 | ||
1256 | static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) | |
1257 | { | |
1258 | struct ufs_sb_private_info * uspi; | |
1259 | struct ufs_super_block_first * usb1; | |
1260 | struct ufs_super_block_third * usb3; | |
1261 | unsigned new_mount_opt, ufstype; | |
1262 | unsigned flags; | |
337eb00a | 1263 | |
788257d6 | 1264 | lock_ufs(sb); |
bbd6851a | 1265 | lock_super(sb); |
1da177e4 LT |
1266 | uspi = UFS_SB(sb)->s_uspi; |
1267 | flags = UFS_SB(sb)->s_flags; | |
7b4ee73e E |
1268 | usb1 = ubh_get_usb_first(uspi); |
1269 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 LT |
1270 | |
1271 | /* | |
1272 | * Allow the "check" option to be passed as a remount option. | |
1273 | * It is not possible to change ufstype option during remount | |
1274 | */ | |
1275 | ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; | |
1276 | new_mount_opt = 0; | |
1277 | ufs_set_opt (new_mount_opt, ONERROR_LOCK); | |
bbd6851a AV |
1278 | if (!ufs_parse_options (data, &new_mount_opt)) { |
1279 | unlock_super(sb); | |
788257d6 | 1280 | unlock_ufs(sb); |
1da177e4 | 1281 | return -EINVAL; |
bbd6851a | 1282 | } |
1da177e4 LT |
1283 | if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { |
1284 | new_mount_opt |= ufstype; | |
ee3ffd6c | 1285 | } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { |
1da177e4 | 1286 | printk("ufstype can't be changed during remount\n"); |
bbd6851a | 1287 | unlock_super(sb); |
788257d6 | 1288 | unlock_ufs(sb); |
1da177e4 LT |
1289 | return -EINVAL; |
1290 | } | |
1291 | ||
1292 | if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { | |
1293 | UFS_SB(sb)->s_mount_opt = new_mount_opt; | |
bbd6851a | 1294 | unlock_super(sb); |
788257d6 | 1295 | unlock_ufs(sb); |
1da177e4 LT |
1296 | return 0; |
1297 | } | |
1298 | ||
1299 | /* | |
1300 | * fs was mouted as rw, remounting ro | |
1301 | */ | |
1302 | if (*mount_flags & MS_RDONLY) { | |
ee3ffd6c | 1303 | ufs_put_super_internal(sb); |
1da177e4 LT |
1304 | usb1->fs_time = cpu_to_fs32(sb, get_seconds()); |
1305 | if ((flags & UFS_ST_MASK) == UFS_ST_SUN | |
252e211e | 1306 | || (flags & UFS_ST_MASK) == UFS_ST_SUNOS |
1da177e4 LT |
1307 | || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) |
1308 | ufs_set_fs_state(sb, usb1, usb3, | |
1309 | UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); | |
9695ef16 | 1310 | ubh_mark_buffer_dirty (USPI_UBH(uspi)); |
1da177e4 LT |
1311 | sb->s_dirt = 0; |
1312 | sb->s_flags |= MS_RDONLY; | |
ee3ffd6c | 1313 | } else { |
1da177e4 LT |
1314 | /* |
1315 | * fs was mounted as ro, remounting rw | |
1316 | */ | |
1da177e4 LT |
1317 | #ifndef CONFIG_UFS_FS_WRITE |
1318 | printk("ufs was compiled with read-only support, " | |
1319 | "can't be mounted as read-write\n"); | |
bbd6851a | 1320 | unlock_super(sb); |
788257d6 | 1321 | unlock_ufs(sb); |
1da177e4 LT |
1322 | return -EINVAL; |
1323 | #else | |
1324 | if (ufstype != UFS_MOUNT_UFSTYPE_SUN && | |
252e211e | 1325 | ufstype != UFS_MOUNT_UFSTYPE_SUNOS && |
1da177e4 | 1326 | ufstype != UFS_MOUNT_UFSTYPE_44BSD && |
cbcae39f ED |
1327 | ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && |
1328 | ufstype != UFS_MOUNT_UFSTYPE_UFS2) { | |
1da177e4 | 1329 | printk("this ufstype is read-only supported\n"); |
bbd6851a | 1330 | unlock_super(sb); |
788257d6 | 1331 | unlock_ufs(sb); |
1da177e4 LT |
1332 | return -EINVAL; |
1333 | } | |
ee3ffd6c | 1334 | if (!ufs_read_cylinder_structures(sb)) { |
1da177e4 | 1335 | printk("failed during remounting\n"); |
bbd6851a | 1336 | unlock_super(sb); |
788257d6 | 1337 | unlock_ufs(sb); |
1da177e4 LT |
1338 | return -EPERM; |
1339 | } | |
1340 | sb->s_flags &= ~MS_RDONLY; | |
1341 | #endif | |
1342 | } | |
1343 | UFS_SB(sb)->s_mount_opt = new_mount_opt; | |
bbd6851a | 1344 | unlock_super(sb); |
788257d6 | 1345 | unlock_ufs(sb); |
1da177e4 LT |
1346 | return 0; |
1347 | } | |
1348 | ||
34c80b1d | 1349 | static int ufs_show_options(struct seq_file *seq, struct dentry *root) |
2a9807c0 | 1350 | { |
34c80b1d | 1351 | struct ufs_sb_info *sbi = UFS_SB(root->d_sb); |
2a9807c0 | 1352 | unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; |
a447c093 | 1353 | const struct match_token *tp = tokens; |
2a9807c0 ED |
1354 | |
1355 | while (tp->token != Opt_onerror_panic && tp->token != mval) | |
1356 | ++tp; | |
1357 | BUG_ON(tp->token == Opt_onerror_panic); | |
1358 | seq_printf(seq, ",%s", tp->pattern); | |
1359 | ||
1360 | mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; | |
1361 | while (tp->token != Opt_err && tp->token != mval) | |
1362 | ++tp; | |
1363 | BUG_ON(tp->token == Opt_err); | |
1364 | seq_printf(seq, ",%s", tp->pattern); | |
1365 | ||
1366 | return 0; | |
1367 | } | |
1368 | ||
647b7e87 | 1369 | static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 | 1370 | { |
726c3342 | 1371 | struct super_block *sb = dentry->d_sb; |
647b7e87 ED |
1372 | struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; |
1373 | unsigned flags = UFS_SB(sb)->s_flags; | |
1374 | struct ufs_super_block_first *usb1; | |
1375 | struct ufs_super_block_second *usb2; | |
1376 | struct ufs_super_block_third *usb3; | |
41d577aa | 1377 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); |
1da177e4 | 1378 | |
788257d6 | 1379 | lock_ufs(sb); |
1da177e4 | 1380 | |
647b7e87 ED |
1381 | usb1 = ubh_get_usb_first(uspi); |
1382 | usb2 = ubh_get_usb_second(uspi); | |
1383 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 | 1384 | |
1da177e4 LT |
1385 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { |
1386 | buf->f_type = UFS2_MAGIC; | |
647b7e87 | 1387 | buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); |
647b7e87 | 1388 | } else { |
1da177e4 LT |
1389 | buf->f_type = UFS_MAGIC; |
1390 | buf->f_blocks = uspi->s_dsize; | |
1da177e4 | 1391 | } |
ee3ffd6c ED |
1392 | buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + |
1393 | uspi->cs_total.cs_nffree; | |
1394 | buf->f_ffree = uspi->cs_total.cs_nifree; | |
1da177e4 LT |
1395 | buf->f_bsize = sb->s_blocksize; |
1396 | buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) | |
1397 | ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; | |
1398 | buf->f_files = uspi->s_ncg * uspi->s_ipg; | |
1399 | buf->f_namelen = UFS_MAXNAMLEN; | |
41d577aa CL |
1400 | buf->f_fsid.val[0] = (u32)id; |
1401 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1da177e4 | 1402 | |
788257d6 | 1403 | unlock_ufs(sb); |
1da177e4 LT |
1404 | |
1405 | return 0; | |
1406 | } | |
1407 | ||
e18b890b | 1408 | static struct kmem_cache * ufs_inode_cachep; |
1da177e4 LT |
1409 | |
1410 | static struct inode *ufs_alloc_inode(struct super_block *sb) | |
1411 | { | |
1412 | struct ufs_inode_info *ei; | |
788257d6 | 1413 | ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, GFP_NOFS); |
1da177e4 LT |
1414 | if (!ei) |
1415 | return NULL; | |
1416 | ei->vfs_inode.i_version = 1; | |
1417 | return &ei->vfs_inode; | |
1418 | } | |
1419 | ||
fa0d7e3d | 1420 | static void ufs_i_callback(struct rcu_head *head) |
1da177e4 | 1421 | { |
fa0d7e3d | 1422 | struct inode *inode = container_of(head, struct inode, i_rcu); |
1da177e4 LT |
1423 | kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); |
1424 | } | |
1425 | ||
fa0d7e3d NP |
1426 | static void ufs_destroy_inode(struct inode *inode) |
1427 | { | |
1428 | call_rcu(&inode->i_rcu, ufs_i_callback); | |
1429 | } | |
1430 | ||
51cc5068 | 1431 | static void init_once(void *foo) |
1da177e4 LT |
1432 | { |
1433 | struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; | |
1434 | ||
a35afb83 | 1435 | inode_init_once(&ei->vfs_inode); |
1da177e4 | 1436 | } |
20c2df83 | 1437 | |
1da177e4 LT |
1438 | static int init_inodecache(void) |
1439 | { | |
1440 | ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", | |
1441 | sizeof(struct ufs_inode_info), | |
fffb60f9 PJ |
1442 | 0, (SLAB_RECLAIM_ACCOUNT| |
1443 | SLAB_MEM_SPREAD), | |
20c2df83 | 1444 | init_once); |
1da177e4 LT |
1445 | if (ufs_inode_cachep == NULL) |
1446 | return -ENOMEM; | |
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | static void destroy_inodecache(void) | |
1451 | { | |
1a1d92c1 | 1452 | kmem_cache_destroy(ufs_inode_cachep); |
1da177e4 LT |
1453 | } |
1454 | ||
ee9b6d61 | 1455 | static const struct super_operations ufs_super_ops = { |
1da177e4 LT |
1456 | .alloc_inode = ufs_alloc_inode, |
1457 | .destroy_inode = ufs_destroy_inode, | |
1da177e4 | 1458 | .write_inode = ufs_write_inode, |
58e8268c | 1459 | .evict_inode = ufs_evict_inode, |
1da177e4 LT |
1460 | .put_super = ufs_put_super, |
1461 | .write_super = ufs_write_super, | |
8c800656 | 1462 | .sync_fs = ufs_sync_fs, |
1da177e4 LT |
1463 | .statfs = ufs_statfs, |
1464 | .remount_fs = ufs_remount, | |
2a9807c0 | 1465 | .show_options = ufs_show_options, |
1da177e4 LT |
1466 | }; |
1467 | ||
152a0836 AV |
1468 | static struct dentry *ufs_mount(struct file_system_type *fs_type, |
1469 | int flags, const char *dev_name, void *data) | |
1da177e4 | 1470 | { |
152a0836 | 1471 | return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); |
1da177e4 LT |
1472 | } |
1473 | ||
1474 | static struct file_system_type ufs_fs_type = { | |
1475 | .owner = THIS_MODULE, | |
1476 | .name = "ufs", | |
152a0836 | 1477 | .mount = ufs_mount, |
1da177e4 LT |
1478 | .kill_sb = kill_block_super, |
1479 | .fs_flags = FS_REQUIRES_DEV, | |
1480 | }; | |
1481 | ||
1482 | static int __init init_ufs_fs(void) | |
1483 | { | |
1484 | int err = init_inodecache(); | |
1485 | if (err) | |
1486 | goto out1; | |
1487 | err = register_filesystem(&ufs_fs_type); | |
1488 | if (err) | |
1489 | goto out; | |
1490 | return 0; | |
1491 | out: | |
1492 | destroy_inodecache(); | |
1493 | out1: | |
1494 | return err; | |
1495 | } | |
1496 | ||
1497 | static void __exit exit_ufs_fs(void) | |
1498 | { | |
1499 | unregister_filesystem(&ufs_fs_type); | |
1500 | destroy_inodecache(); | |
1501 | } | |
1502 | ||
1503 | module_init(init_ufs_fs) | |
1504 | module_exit(exit_ufs_fs) | |
1505 | MODULE_LICENSE("GPL"); |